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lib/openzeppelin-contracts/test/utils/structs/BitMap.test.js create mode 100644 lib/openzeppelin-contracts/test/utils/structs/DoubleEndedQueue.test.js create mode 100644 lib/openzeppelin-contracts/test/utils/structs/EnumerableMap.behavior.js create mode 100644 lib/openzeppelin-contracts/test/utils/structs/EnumerableMap.test.js create mode 100644 lib/openzeppelin-contracts/test/utils/structs/EnumerableSet.behavior.js create mode 100644 lib/openzeppelin-contracts/test/utils/structs/EnumerableSet.test.js create mode 100755 manage.py create mode 100644 real.svg create mode 100644 remappings.txt create mode 100644 sample.svg create mode 100644 script/Deploy.s.sol create mode 100644 src/Lottery.sol create mode 100644 test/Lottery.t.sol create mode 100644 testing.sh diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml new file mode 100644 index 0000000..09880b1 --- /dev/null +++ b/.github/workflows/test.yml @@ -0,0 +1,34 @@ +name: test + +on: workflow_dispatch + +env: + FOUNDRY_PROFILE: ci + +jobs: + check: + strategy: + fail-fast: true + + name: Foundry project + runs-on: ubuntu-latest + steps: + - uses: actions/checkout@v3 + with: + submodules: recursive + + - name: Install Foundry + uses: foundry-rs/foundry-toolchain@v1 + with: + version: nightly + + - name: Run Forge build + run: | + forge --version + forge build --sizes + id: build + + - name: Run Forge tests + run: | + forge test -vvv + id: test diff --git a/.gitignore b/.gitignore new file mode 100644 index 0000000..612e92d --- /dev/null +++ b/.gitignore @@ -0,0 +1,15 @@ +# Compiler files +cache/ +out/ + +# Ignores development broadcast logs +!/broadcast +/broadcast/*/31337/ +/broadcast/**/dry-run/ +broadcast + +# Dotenv file +.env +.venv + +output.txt diff --git a/.gitmodules b/.gitmodules new file mode 100644 index 0000000..5f22ffa --- /dev/null +++ b/.gitmodules @@ -0,0 +1,9 @@ +[submodule "lib/forge-std"] + path = lib/forge-std + url = https://github.com/foundry-rs/forge-std +[submodule "lib/erc721a"] + path = lib/erc721a + url = https://github.com/chiru-labs/erc721a +[submodule "lib/openzeppelin-contracts"] + path = lib/openzeppelin-contracts + url = https://github.com/openzeppelin/openzeppelin-contracts diff --git a/README.md b/README.md new file mode 100644 index 0000000..9d1bf2d --- /dev/null +++ b/README.md @@ -0,0 +1,7 @@ +## ponzi contracts + +Pretty simple contract + +5000 token supply +.01 eth price +10 tokens will be randomly selected to win 1 eth \ No newline at end of file diff --git a/foundry.toml b/foundry.toml new file mode 100644 index 0000000..e6810b2 --- /dev/null +++ b/foundry.toml @@ -0,0 +1,6 @@ +[profile.default] +src = 'src' +out = 'out' +libs = ['lib'] + +# See more config options https://github.com/foundry-rs/foundry/tree/master/config \ No newline at end of file diff --git a/lib/erc721a/.eslintrc b/lib/erc721a/.eslintrc new file mode 100644 index 0000000..ba3d72b --- /dev/null +++ b/lib/erc721a/.eslintrc @@ -0,0 +1,23 @@ +{ + "env": { + "node": true, + "commonjs": true, + "es2021": true, + "mocha": true + }, + "extends": "eslint:recommended", + "parserOptions": { + "ecmaVersion": "latest" + }, + "globals": { + "ethers": "readonly" + }, + "rules": { + "max-len": [ + "error", + { + "code": 120 + } + ] + } +} \ No newline at end of file diff --git a/lib/erc721a/.github/workflows/coverage.yml b/lib/erc721a/.github/workflows/coverage.yml new file mode 100644 index 0000000..de48017 --- /dev/null +++ b/lib/erc721a/.github/workflows/coverage.yml @@ -0,0 +1,32 @@ +name: Code Coverage + +on: + push: + branches: + - main + paths-ignore: + - 'docs/**' + - '**.md' + +jobs: + run-tests: + runs-on: ubuntu-latest + + strategy: + matrix: + node-version: [14.x] + + steps: + - uses: actions/checkout@v2 + - name: Use Node.js ${{ matrix.node-version }} + uses: actions/setup-node@v2 + with: + node-version: ${{ matrix.node-version }} + - name: Install dependencies + run: npm ci + - name: Run Coverage and Upload to CodeCov + run: | + npm run coverage; \ + curl -Os https://uploader.codecov.io/latest/linux/codecov; \ + chmod +x codecov; \ + ./codecov; diff --git a/lib/erc721a/.github/workflows/deploy_npm.yml b/lib/erc721a/.github/workflows/deploy_npm.yml new file mode 100644 index 0000000..03c722a --- /dev/null +++ b/lib/erc721a/.github/workflows/deploy_npm.yml @@ -0,0 +1,19 @@ +name: Publish Package to npmjs +on: + release: + types: [published] +jobs: + build: + runs-on: ubuntu-latest + steps: + - name: Checkout + uses: actions/checkout@v2 + # Setup .npmrc file to publish to npm + - uses: actions/setup-node@v2 + with: + node-version: "16.x" + registry-url: "https://registry.npmjs.org" + - run: npm ci + - run: npm publish + env: + NODE_AUTH_TOKEN: ${{ secrets.NPM_TOKEN }} diff --git a/lib/erc721a/.github/workflows/run_tests.yml b/lib/erc721a/.github/workflows/run_tests.yml new file mode 100644 index 0000000..f52db21 --- /dev/null +++ b/lib/erc721a/.github/workflows/run_tests.yml @@ -0,0 +1,34 @@ +name: ERC721A CI + +on: + push: + branches: [main] + paths-ignore: + - 'docs/**' + - '**.md' + pull_request: + branches: [main] + paths-ignore: + - 'docs/**' + - '**.md' + +jobs: + run-tests: + runs-on: ubuntu-latest + + strategy: + matrix: + node-version: [14.x,16.x,17.x] + + steps: + - uses: actions/checkout@v2 + - name: Use Node.js ${{ matrix.node-version }} + uses: actions/setup-node@v2 + with: + node-version: ${{ matrix.node-version }} + - name: Install dependencies + run: npm ci + - name: Run linter + run: npm run lint + - name: Run tests + run: npm test diff --git a/lib/erc721a/.github/workflows/upgradeable.yml b/lib/erc721a/.github/workflows/upgradeable.yml new file mode 100644 index 0000000..b9d3b5e --- /dev/null +++ b/lib/erc721a/.github/workflows/upgradeable.yml @@ -0,0 +1,23 @@ +name: Upgradeable Trigger + +on: + push: + branches: + - main + tags: + - 'v*' + paths-ignore: + - 'docs/**' + - '**.md' + +jobs: + trigger: + runs-on: ubuntu-latest + steps: + - name: Repository Dispatch + uses: peter-evans/repository-dispatch@v2 + with: + token: ${{ secrets.UPGRADEABLE_REPO_ACCESS_TOKEN }} + repository: chiru-labs/ERC721A-Upgradeable + event-type: Update + client-payload: '{"ref": "${{ github.ref }}", "sha": "${{ github.sha }}"}' diff --git a/lib/erc721a/.gitignore b/lib/erc721a/.gitignore new file mode 100644 index 0000000..6d1269d --- /dev/null +++ b/lib/erc721a/.gitignore @@ -0,0 +1,9 @@ +node_modules/ +.env +coverage +coverage.json +typechain + +#Hardhat files +cache +artifacts diff --git a/lib/erc721a/.prettierrc b/lib/erc721a/.prettierrc new file mode 100644 index 0000000..7ec948a --- /dev/null +++ b/lib/erc721a/.prettierrc @@ -0,0 +1,13 @@ +{ + "singleQuote": true, + "printWidth": 120, + "overrides": [ + { + "files": "*.sol", + "options": { + "printWidth": 120, + "explicitTypes": "always" + } + } + ] +} \ No newline at end of file diff --git a/lib/erc721a/LICENSE.txt b/lib/erc721a/LICENSE.txt new file mode 100644 index 0000000..951ba42 --- /dev/null +++ b/lib/erc721a/LICENSE.txt @@ -0,0 +1,21 @@ +MIT License + +Copyright (c) 2022 Chiru Labs + +Permission is hereby granted, free of charge, to any person obtaining a copy +of this software and associated documentation files (the "Software"), to deal +in the Software without restriction, including without limitation the rights +to use, copy, modify, merge, publish, distribute, sublicense, and/or sell +copies of the Software, and to permit persons to whom the Software is +furnished to do so, subject to the following conditions: + +The above copyright notice and this permission notice shall be included in all +copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, +OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE +SOFTWARE. \ No newline at end of file diff --git a/lib/erc721a/README.md b/lib/erc721a/README.md new file mode 100644 index 0000000..71fad65 --- /dev/null +++ b/lib/erc721a/README.md @@ -0,0 +1,148 @@ +[![Docs][docs-shield]][docs-url] +[![NPM][npm-shield]][npm-url] +[![CI][ci-shield]][ci-url] +[![Issues][issues-shield]][issues-url] +[![MIT License][license-shield]][license-url] +[![Coverage][coverage-shield]][coverage-url] + + + + + + + +> **📢 Version 4.x introduces several breaking changes. [Please refer to the documentation for more details.](https://chiru-labs.github.io/ERC721A/#/migration)** + +_We highly recommend reading the migration guide_, **especially** _the part on [`supportsInterface`](https://chiru-labs.github.io/ERC721A/#/migration?id=supportsinterface) if you are using with OpenZeppelin extensions_ (e.g. ERC2981). + + + +## About The Project + +The goal of ERC721A is to provide a fully compliant implementation of IERC721 with significant gas savings for minting multiple NFTs in a single transaction. This project and implementation will be updated regularly and will continue to stay up to date with best practices. + +The [Azuki](https://twitter.com/AzukiOfficial) team created ERC721A for its sale on 1/12/22. There was significant demand for 8700 tokens made available to the public, and all were minted within minutes. The network BASEFEE remained low despite huge demand, resulting in low gas costs for minters, while minimizing network disruption for the wider ecosystem as well. + +![Gas Savings](https://pbs.twimg.com/media/FIdILKpVQAEQ_5U?format=jpg&name=medium) + +For more information on how ERC721A works under the hood, please visit our [blog](https://www.azuki.com/erc721a). To find other projects that are using ERC721A, please visit [erc721a.org](https://www.erc721a.org) and our [curated projects list](https://github.com/chiru-labs/ERC721A/blob/main/projects.md). + +**Chiru Labs is not liable for any outcomes as a result of using ERC721A.** DYOR. + + + +## Docs + +https://chiru-labs.github.io/ERC721A/ + + + +## Upgradeable Version + +https://github.com/chiru-labs/ERC721A-Upgradeable + + + +## Installation + +```sh + +npm install --save-dev erc721a + +``` + + + +## Usage + +Once installed, you can use the contracts in the library by importing them: + +```solidity +pragma solidity ^0.8.4; + +import "erc721a/contracts/ERC721A.sol"; + +contract Azuki is ERC721A { + constructor() ERC721A("Azuki", "AZUKI") {} + + function mint(uint256 quantity) external payable { + // `_mint`'s second argument now takes in a `quantity`, not a `tokenId`. + _mint(msg.sender, quantity); + } +} + +``` + + + +## Roadmap + +- [ ] Improve general repo and code quality (workflows, comments, etc.) +- [ ] Add more documentation on benefits of using ERC721A +- [ ] Maintain full test coverage + +See the [open issues](https://github.com/chiru-labs/ERC721A/issues) for a full list of proposed features (and known issues). + + + +## Contributing + +Contributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are **greatly appreciated**. + +If you have a suggestion that would make this better, please fork the repo and create a pull request. You can also simply open an issue with the tag "enhancement". + +Don't forget to give the project a star! Thanks again! + +1. Fork the Project +2. Create your Feature Branch (`git checkout -b feature/AmazingFeature`) +3. Commit your Changes (`git commit -m 'Add some AmazingFeature'`) +4. Push to the Branch (`git push origin feature/AmazingFeature`) +5. Open a Pull Request + + + +### Running tests locally + +1. `npm install` +2. `npm run test` + + + +## License + +Distributed under the MIT License. See `LICENSE.txt` for more information. + + + +## Contact + +- 2pm.flow (owner) - [@2pmflow](https://twitter.com/2pmflow) +- location tba (owner) - [@locationtba](https://twitter.com/locationtba) +- cygaar (maintainer) - [@0xCygaar](https://twitter.com/0xCygaar) +- vectorized.eth (maintainer) - [@optimizoor](https://twitter.com/optimizoor) + +Project Link: [https://github.com/chiru-labs/ERC721A](https://github.com/chiru-labs/ERC721A) + + + + + +[docs-shield]: https://img.shields.io/badge/docs-%F0%9F%93%84-blue?style=for-the-badge +[docs-url]: https://chiru-labs.github.io/ERC721A/ +[npm-shield]: https://img.shields.io/npm/v/erc721a.svg?style=for-the-badge +[npm-url]: https://www.npmjs.com/package/erc721a +[ci-shield]: https://img.shields.io/github/actions/workflow/status/chiru-labs/ERC721A/run_tests.yml?label=build&style=for-the-badge&branch=main +[ci-url]: https://github.com/chiru-labs/ERC721A/actions/workflows/run_tests.yml +[contributors-shield]: https://img.shields.io/github/contributors/chiru-labs/ERC721A.svg?style=for-the-badge +[contributors-url]: https://github.com/chiru-labs/ERC721A/graphs/contributors +[forks-shield]: https://img.shields.io/github/forks/chiru-labs/ERC721A.svg?style=for-the-badge +[forks-url]: https://github.com/chiru-labs/ERC721A/network/members +[stars-shield]: https://img.shields.io/github/stars/chiru-labs/ERC721A.svg?style=for-the-badge +[stars-url]: https://github.com/chiru-labs/ERC721A/stargazers +[issues-shield]: https://img.shields.io/github/issues/chiru-labs/ERC721A.svg?style=for-the-badge +[issues-url]: https://github.com/chiru-labs/ERC721A/issues +[license-shield]: https://img.shields.io/badge/License-MIT-green.svg?style=for-the-badge +[license-url]: https://github.com/chiru-labs/ERC721A/blob/main/LICENSE.txt +[coverage-shield]: https://img.shields.io/codecov/c/gh/chiru-labs/ERC721A?style=for-the-badge +[coverage-url]: https://codecov.io/gh/chiru-labs/ERC721A +[product-screenshot]: images/screenshot.png diff --git a/lib/erc721a/contracts/ERC721A.sol b/lib/erc721a/contracts/ERC721A.sol new file mode 100644 index 0000000..d35d971 --- /dev/null +++ b/lib/erc721a/contracts/ERC721A.sol @@ -0,0 +1,1136 @@ +// SPDX-License-Identifier: MIT +// ERC721A Contracts v4.2.3 +// Creator: Chiru Labs + +pragma solidity ^0.8.4; + +import './IERC721A.sol'; + +/** + * @dev Interface of ERC721 token receiver. + */ +interface ERC721A__IERC721Receiver { + function onERC721Received( + address operator, + address from, + uint256 tokenId, + bytes calldata data + ) external returns (bytes4); +} + +/** + * @title ERC721A + * + * @dev Implementation of the [ERC721](https://eips.ethereum.org/EIPS/eip-721) + * Non-Fungible Token Standard, including the Metadata extension. + * Optimized for lower gas during batch mints. + * + * Token IDs are minted in sequential order (e.g. 0, 1, 2, 3, ...) + * starting from `_startTokenId()`. + * + * Assumptions: + * + * - An owner cannot have more than 2**64 - 1 (max value of uint64) of supply. + * - The maximum token ID cannot exceed 2**256 - 1 (max value of uint256). + */ +contract ERC721A is IERC721A { + // Bypass for a `--via-ir` bug (https://github.com/chiru-labs/ERC721A/pull/364). + struct TokenApprovalRef { + address value; + } + + // ============================================================= + // CONSTANTS + // ============================================================= + + // Mask of an entry in packed address data. + uint256 private constant _BITMASK_ADDRESS_DATA_ENTRY = (1 << 64) - 1; + + // The bit position of `numberMinted` in packed address data. + uint256 private constant _BITPOS_NUMBER_MINTED = 64; + + // The bit position of `numberBurned` in packed address data. + uint256 private constant _BITPOS_NUMBER_BURNED = 128; + + // The bit position of `aux` in packed address data. + uint256 private constant _BITPOS_AUX = 192; + + // Mask of all 256 bits in packed address data except the 64 bits for `aux`. + uint256 private constant _BITMASK_AUX_COMPLEMENT = (1 << 192) - 1; + + // The bit position of `startTimestamp` in packed ownership. + uint256 private constant _BITPOS_START_TIMESTAMP = 160; + + // The bit mask of the `burned` bit in packed ownership. + uint256 private constant _BITMASK_BURNED = 1 << 224; + + // The bit position of the `nextInitialized` bit in packed ownership. + uint256 private constant _BITPOS_NEXT_INITIALIZED = 225; + + // The bit mask of the `nextInitialized` bit in packed ownership. + uint256 private constant _BITMASK_NEXT_INITIALIZED = 1 << 225; + + // The bit position of `extraData` in packed ownership. + uint256 private constant _BITPOS_EXTRA_DATA = 232; + + // Mask of all 256 bits in a packed ownership except the 24 bits for `extraData`. + uint256 private constant _BITMASK_EXTRA_DATA_COMPLEMENT = (1 << 232) - 1; + + // The mask of the lower 160 bits for addresses. + uint256 private constant _BITMASK_ADDRESS = (1 << 160) - 1; + + // The maximum `quantity` that can be minted with {_mintERC2309}. + // This limit is to prevent overflows on the address data entries. + // For a limit of 5000, a total of 3.689e15 calls to {_mintERC2309} + // is required to cause an overflow, which is unrealistic. + uint256 private constant _MAX_MINT_ERC2309_QUANTITY_LIMIT = 5000; + + // The `Transfer` event signature is given by: + // `keccak256(bytes("Transfer(address,address,uint256)"))`. + bytes32 private constant _TRANSFER_EVENT_SIGNATURE = + 0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef; + + // ============================================================= + // STORAGE + // ============================================================= + + // The next token ID to be minted. + uint256 private _currentIndex; + + // The number of tokens burned. + uint256 private _burnCounter; + + // Token name + string private _name; + + // Token symbol + string private _symbol; + + // Mapping from token ID to ownership details + // An empty struct value does not necessarily mean the token is unowned. + // See {_packedOwnershipOf} implementation for details. + // + // Bits Layout: + // - [0..159] `addr` + // - [160..223] `startTimestamp` + // - [224] `burned` + // - [225] `nextInitialized` + // - [232..255] `extraData` + mapping(uint256 => uint256) private _packedOwnerships; + + // Mapping owner address to address data. + // + // Bits Layout: + // - [0..63] `balance` + // - [64..127] `numberMinted` + // - [128..191] `numberBurned` + // - [192..255] `aux` + mapping(address => uint256) private _packedAddressData; + + // Mapping from token ID to approved address. + mapping(uint256 => TokenApprovalRef) private _tokenApprovals; + + // Mapping from owner to operator approvals + mapping(address => mapping(address => bool)) private _operatorApprovals; + + // ============================================================= + // CONSTRUCTOR + // ============================================================= + + constructor(string memory name_, string memory symbol_) { + _name = name_; + _symbol = symbol_; + _currentIndex = _startTokenId(); + } + + // ============================================================= + // TOKEN COUNTING OPERATIONS + // ============================================================= + + /** + * @dev Returns the starting token ID. + * To change the starting token ID, please override this function. + */ + function _startTokenId() internal view virtual returns (uint256) { + return 0; + } + + /** + * @dev Returns the next token ID to be minted. + */ + function _nextTokenId() internal view virtual returns (uint256) { + return _currentIndex; + } + + /** + * @dev Returns the total number of tokens in existence. + * Burned tokens will reduce the count. + * To get the total number of tokens minted, please see {_totalMinted}. + */ + function totalSupply() public view virtual override returns (uint256) { + // Counter underflow is impossible as _burnCounter cannot be incremented + // more than `_currentIndex - _startTokenId()` times. + unchecked { + return _currentIndex - _burnCounter - _startTokenId(); + } + } + + /** + * @dev Returns the total amount of tokens minted in the contract. + */ + function _totalMinted() internal view virtual returns (uint256) { + // Counter underflow is impossible as `_currentIndex` does not decrement, + // and it is initialized to `_startTokenId()`. + unchecked { + return _currentIndex - _startTokenId(); + } + } + + /** + * @dev Returns the total number of tokens burned. + */ + function _totalBurned() internal view virtual returns (uint256) { + return _burnCounter; + } + + // ============================================================= + // ADDRESS DATA OPERATIONS + // ============================================================= + + /** + * @dev Returns the number of tokens in `owner`'s account. + */ + function balanceOf(address owner) public view virtual override returns (uint256) { + if (owner == address(0)) _revert(BalanceQueryForZeroAddress.selector); + return _packedAddressData[owner] & _BITMASK_ADDRESS_DATA_ENTRY; + } + + /** + * Returns the number of tokens minted by `owner`. + */ + function _numberMinted(address owner) internal view returns (uint256) { + return (_packedAddressData[owner] >> _BITPOS_NUMBER_MINTED) & _BITMASK_ADDRESS_DATA_ENTRY; + } + + /** + * Returns the number of tokens burned by or on behalf of `owner`. + */ + function _numberBurned(address owner) internal view returns (uint256) { + return (_packedAddressData[owner] >> _BITPOS_NUMBER_BURNED) & _BITMASK_ADDRESS_DATA_ENTRY; + } + + /** + * Returns the auxiliary data for `owner`. (e.g. number of whitelist mint slots used). + */ + function _getAux(address owner) internal view returns (uint64) { + return uint64(_packedAddressData[owner] >> _BITPOS_AUX); + } + + /** + * Sets the auxiliary data for `owner`. (e.g. number of whitelist mint slots used). + * If there are multiple variables, please pack them into a uint64. + */ + function _setAux(address owner, uint64 aux) internal virtual { + uint256 packed = _packedAddressData[owner]; + uint256 auxCasted; + // Cast `aux` with assembly to avoid redundant masking. + assembly { + auxCasted := aux + } + packed = (packed & _BITMASK_AUX_COMPLEMENT) | (auxCasted << _BITPOS_AUX); + _packedAddressData[owner] = packed; + } + + // ============================================================= + // IERC165 + // ============================================================= + + /** + * @dev Returns true if this contract implements the interface defined by + * `interfaceId`. See the corresponding + * [EIP section](https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified) + * to learn more about how these ids are created. + * + * This function call must use less than 30000 gas. + */ + function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) { + // The interface IDs are constants representing the first 4 bytes + // of the XOR of all function selectors in the interface. + // See: [ERC165](https://eips.ethereum.org/EIPS/eip-165) + // (e.g. `bytes4(i.functionA.selector ^ i.functionB.selector ^ ...)`) + return + interfaceId == 0x01ffc9a7 || // ERC165 interface ID for ERC165. + interfaceId == 0x80ac58cd || // ERC165 interface ID for ERC721. + interfaceId == 0x5b5e139f; // ERC165 interface ID for ERC721Metadata. + } + + // ============================================================= + // IERC721Metadata + // ============================================================= + + /** + * @dev Returns the token collection name. + */ + function name() public view virtual override returns (string memory) { + return _name; + } + + /** + * @dev Returns the token collection symbol. + */ + function symbol() public view virtual override returns (string memory) { + return _symbol; + } + + /** + * @dev Returns the Uniform Resource Identifier (URI) for `tokenId` token. + */ + function tokenURI(uint256 tokenId) public view virtual override returns (string memory) { + if (!_exists(tokenId)) _revert(URIQueryForNonexistentToken.selector); + + string memory baseURI = _baseURI(); + return bytes(baseURI).length != 0 ? string(abi.encodePacked(baseURI, _toString(tokenId))) : ''; + } + + /** + * @dev Base URI for computing {tokenURI}. If set, the resulting URI for each + * token will be the concatenation of the `baseURI` and the `tokenId`. Empty + * by default, it can be overridden in child contracts. + */ + function _baseURI() internal view virtual returns (string memory) { + return ''; + } + + // ============================================================= + // OWNERSHIPS OPERATIONS + // ============================================================= + + /** + * @dev Returns the owner of the `tokenId` token. + * + * Requirements: + * + * - `tokenId` must exist. + */ + function ownerOf(uint256 tokenId) public view virtual override returns (address) { + return address(uint160(_packedOwnershipOf(tokenId))); + } + + /** + * @dev Gas spent here starts off proportional to the maximum mint batch size. + * It gradually moves to O(1) as tokens get transferred around over time. + */ + function _ownershipOf(uint256 tokenId) internal view virtual returns (TokenOwnership memory) { + return _unpackedOwnership(_packedOwnershipOf(tokenId)); + } + + /** + * @dev Returns the unpacked `TokenOwnership` struct at `index`. + */ + function _ownershipAt(uint256 index) internal view virtual returns (TokenOwnership memory) { + return _unpackedOwnership(_packedOwnerships[index]); + } + + /** + * @dev Initializes the ownership slot minted at `index` for efficiency purposes. + */ + function _initializeOwnershipAt(uint256 index) internal virtual { + if (_packedOwnerships[index] == 0) { + _packedOwnerships[index] = _packedOwnershipOf(index); + } + } + + /** + * Returns the packed ownership data of `tokenId`. + */ + function _packedOwnershipOf(uint256 tokenId) private view returns (uint256 packed) { + if (_startTokenId() <= tokenId) { + packed = _packedOwnerships[tokenId]; + // If not burned. + if (packed & _BITMASK_BURNED == 0) { + // If the data at the starting slot does not exist, start the scan. + if (packed == 0) { + if (tokenId >= _currentIndex) _revert(OwnerQueryForNonexistentToken.selector); + // Invariant: + // There will always be an initialized ownership slot + // (i.e. `ownership.addr != address(0) && ownership.burned == false`) + // before an unintialized ownership slot + // (i.e. `ownership.addr == address(0) && ownership.burned == false`) + // Hence, `tokenId` will not underflow. + // + // We can directly compare the packed value. + // If the address is zero, packed will be zero. + for (;;) { + unchecked { + packed = _packedOwnerships[--tokenId]; + } + if (packed == 0) continue; + return packed; + } + } + // Otherwise, the data exists and is not burned. We can skip the scan. + // This is possible because we have already achieved the target condition. + // This saves 2143 gas on transfers of initialized tokens. + return packed; + } + } + _revert(OwnerQueryForNonexistentToken.selector); + } + + /** + * @dev Returns the unpacked `TokenOwnership` struct from `packed`. + */ + function _unpackedOwnership(uint256 packed) private pure returns (TokenOwnership memory ownership) { + ownership.addr = address(uint160(packed)); + ownership.startTimestamp = uint64(packed >> _BITPOS_START_TIMESTAMP); + ownership.burned = packed & _BITMASK_BURNED != 0; + ownership.extraData = uint24(packed >> _BITPOS_EXTRA_DATA); + } + + /** + * @dev Packs ownership data into a single uint256. + */ + function _packOwnershipData(address owner, uint256 flags) private view returns (uint256 result) { + assembly { + // Mask `owner` to the lower 160 bits, in case the upper bits somehow aren't clean. + owner := and(owner, _BITMASK_ADDRESS) + // `owner | (block.timestamp << _BITPOS_START_TIMESTAMP) | flags`. + result := or(owner, or(shl(_BITPOS_START_TIMESTAMP, timestamp()), flags)) + } + } + + /** + * @dev Returns the `nextInitialized` flag set if `quantity` equals 1. + */ + function _nextInitializedFlag(uint256 quantity) private pure returns (uint256 result) { + // For branchless setting of the `nextInitialized` flag. + assembly { + // `(quantity == 1) << _BITPOS_NEXT_INITIALIZED`. + result := shl(_BITPOS_NEXT_INITIALIZED, eq(quantity, 1)) + } + } + + // ============================================================= + // APPROVAL OPERATIONS + // ============================================================= + + /** + * @dev Gives permission to `to` to transfer `tokenId` token to another account. See {ERC721A-_approve}. + * + * Requirements: + * + * - The caller must own the token or be an approved operator. + */ + function approve(address to, uint256 tokenId) public payable virtual override { + _approve(to, tokenId, true); + } + + /** + * @dev Returns the account approved for `tokenId` token. + * + * Requirements: + * + * - `tokenId` must exist. + */ + function getApproved(uint256 tokenId) public view virtual override returns (address) { + if (!_exists(tokenId)) _revert(ApprovalQueryForNonexistentToken.selector); + + return _tokenApprovals[tokenId].value; + } + + /** + * @dev Approve or remove `operator` as an operator for the caller. + * Operators can call {transferFrom} or {safeTransferFrom} + * for any token owned by the caller. + * + * Requirements: + * + * - The `operator` cannot be the caller. + * + * Emits an {ApprovalForAll} event. + */ + function setApprovalForAll(address operator, bool approved) public virtual override { + _operatorApprovals[_msgSenderERC721A()][operator] = approved; + emit ApprovalForAll(_msgSenderERC721A(), operator, approved); + } + + /** + * @dev Returns if the `operator` is allowed to manage all of the assets of `owner`. + * + * See {setApprovalForAll}. + */ + function isApprovedForAll(address owner, address operator) public view virtual override returns (bool) { + return _operatorApprovals[owner][operator]; + } + + /** + * @dev Returns whether `tokenId` exists. + * + * Tokens can be managed by their owner or approved accounts via {approve} or {setApprovalForAll}. + * + * Tokens start existing when they are minted. See {_mint}. + */ + function _exists(uint256 tokenId) internal view virtual returns (bool) { + return + _startTokenId() <= tokenId && + tokenId < _currentIndex && // If within bounds, + _packedOwnerships[tokenId] & _BITMASK_BURNED == 0; // and not burned. + } + + /** + * @dev Returns whether `msgSender` is equal to `approvedAddress` or `owner`. + */ + function _isSenderApprovedOrOwner( + address approvedAddress, + address owner, + address msgSender + ) private pure returns (bool result) { + assembly { + // Mask `owner` to the lower 160 bits, in case the upper bits somehow aren't clean. + owner := and(owner, _BITMASK_ADDRESS) + // Mask `msgSender` to the lower 160 bits, in case the upper bits somehow aren't clean. + msgSender := and(msgSender, _BITMASK_ADDRESS) + // `msgSender == owner || msgSender == approvedAddress`. + result := or(eq(msgSender, owner), eq(msgSender, approvedAddress)) + } + } + + /** + * @dev Returns the storage slot and value for the approved address of `tokenId`. + */ + function _getApprovedSlotAndAddress(uint256 tokenId) + private + view + returns (uint256 approvedAddressSlot, address approvedAddress) + { + TokenApprovalRef storage tokenApproval = _tokenApprovals[tokenId]; + // The following is equivalent to `approvedAddress = _tokenApprovals[tokenId].value`. + assembly { + approvedAddressSlot := tokenApproval.slot + approvedAddress := sload(approvedAddressSlot) + } + } + + // ============================================================= + // TRANSFER OPERATIONS + // ============================================================= + + /** + * @dev Transfers `tokenId` from `from` to `to`. + * + * Requirements: + * + * - `from` cannot be the zero address. + * - `to` cannot be the zero address. + * - `tokenId` token must be owned by `from`. + * - If the caller is not `from`, it must be approved to move this token + * by either {approve} or {setApprovalForAll}. + * + * Emits a {Transfer} event. + */ + function transferFrom( + address from, + address to, + uint256 tokenId + ) public payable virtual override { + uint256 prevOwnershipPacked = _packedOwnershipOf(tokenId); + + // Mask `from` to the lower 160 bits, in case the upper bits somehow aren't clean. + from = address(uint160(uint256(uint160(from)) & _BITMASK_ADDRESS)); + + if (address(uint160(prevOwnershipPacked)) != from) _revert(TransferFromIncorrectOwner.selector); + + (uint256 approvedAddressSlot, address approvedAddress) = _getApprovedSlotAndAddress(tokenId); + + // The nested ifs save around 20+ gas over a compound boolean condition. + if (!_isSenderApprovedOrOwner(approvedAddress, from, _msgSenderERC721A())) + if (!isApprovedForAll(from, _msgSenderERC721A())) _revert(TransferCallerNotOwnerNorApproved.selector); + + _beforeTokenTransfers(from, to, tokenId, 1); + + // Clear approvals from the previous owner. + assembly { + if approvedAddress { + // This is equivalent to `delete _tokenApprovals[tokenId]`. + sstore(approvedAddressSlot, 0) + } + } + + // Underflow of the sender's balance is impossible because we check for + // ownership above and the recipient's balance can't realistically overflow. + // Counter overflow is incredibly unrealistic as `tokenId` would have to be 2**256. + unchecked { + // We can directly increment and decrement the balances. + --_packedAddressData[from]; // Updates: `balance -= 1`. + ++_packedAddressData[to]; // Updates: `balance += 1`. + + // Updates: + // - `address` to the next owner. + // - `startTimestamp` to the timestamp of transfering. + // - `burned` to `false`. + // - `nextInitialized` to `true`. + _packedOwnerships[tokenId] = _packOwnershipData( + to, + _BITMASK_NEXT_INITIALIZED | _nextExtraData(from, to, prevOwnershipPacked) + ); + + // If the next slot may not have been initialized (i.e. `nextInitialized == false`) . + if (prevOwnershipPacked & _BITMASK_NEXT_INITIALIZED == 0) { + uint256 nextTokenId = tokenId + 1; + // If the next slot's address is zero and not burned (i.e. packed value is zero). + if (_packedOwnerships[nextTokenId] == 0) { + // If the next slot is within bounds. + if (nextTokenId != _currentIndex) { + // Initialize the next slot to maintain correctness for `ownerOf(tokenId + 1)`. + _packedOwnerships[nextTokenId] = prevOwnershipPacked; + } + } + } + } + + // Mask `to` to the lower 160 bits, in case the upper bits somehow aren't clean. + uint256 toMasked = uint256(uint160(to)) & _BITMASK_ADDRESS; + assembly { + // Emit the `Transfer` event. + log4( + 0, // Start of data (0, since no data). + 0, // End of data (0, since no data). + _TRANSFER_EVENT_SIGNATURE, // Signature. + from, // `from`. + toMasked, // `to`. + tokenId // `tokenId`. + ) + } + if (toMasked == 0) _revert(TransferToZeroAddress.selector); + + _afterTokenTransfers(from, to, tokenId, 1); + } + + /** + * @dev Equivalent to `safeTransferFrom(from, to, tokenId, '')`. + */ + function safeTransferFrom( + address from, + address to, + uint256 tokenId + ) public payable virtual override { + safeTransferFrom(from, to, tokenId, ''); + } + + /** + * @dev Safely transfers `tokenId` token from `from` to `to`. + * + * Requirements: + * + * - `from` cannot be the zero address. + * - `to` cannot be the zero address. + * - `tokenId` token must exist and be owned by `from`. + * - If the caller is not `from`, it must be approved to move this token + * by either {approve} or {setApprovalForAll}. + * - If `to` refers to a smart contract, it must implement + * {IERC721Receiver-onERC721Received}, which is called upon a safe transfer. + * + * Emits a {Transfer} event. + */ + function safeTransferFrom( + address from, + address to, + uint256 tokenId, + bytes memory _data + ) public payable virtual override { + transferFrom(from, to, tokenId); + if (to.code.length != 0) + if (!_checkContractOnERC721Received(from, to, tokenId, _data)) { + _revert(TransferToNonERC721ReceiverImplementer.selector); + } + } + + /** + * @dev Hook that is called before a set of serially-ordered token IDs + * are about to be transferred. This includes minting. + * And also called before burning one token. + * + * `startTokenId` - the first token ID to be transferred. + * `quantity` - the amount to be transferred. + * + * Calling conditions: + * + * - When `from` and `to` are both non-zero, `from`'s `tokenId` will be + * transferred to `to`. + * - When `from` is zero, `tokenId` will be minted for `to`. + * - When `to` is zero, `tokenId` will be burned by `from`. + * - `from` and `to` are never both zero. + */ + function _beforeTokenTransfers( + address from, + address to, + uint256 startTokenId, + uint256 quantity + ) internal virtual {} + + /** + * @dev Hook that is called after a set of serially-ordered token IDs + * have been transferred. This includes minting. + * And also called after one token has been burned. + * + * `startTokenId` - the first token ID to be transferred. + * `quantity` - the amount to be transferred. + * + * Calling conditions: + * + * - When `from` and `to` are both non-zero, `from`'s `tokenId` has been + * transferred to `to`. + * - When `from` is zero, `tokenId` has been minted for `to`. + * - When `to` is zero, `tokenId` has been burned by `from`. + * - `from` and `to` are never both zero. + */ + function _afterTokenTransfers( + address from, + address to, + uint256 startTokenId, + uint256 quantity + ) internal virtual {} + + /** + * @dev Private function to invoke {IERC721Receiver-onERC721Received} on a target contract. + * + * `from` - Previous owner of the given token ID. + * `to` - Target address that will receive the token. + * `tokenId` - Token ID to be transferred. + * `_data` - Optional data to send along with the call. + * + * Returns whether the call correctly returned the expected magic value. + */ + function _checkContractOnERC721Received( + address from, + address to, + uint256 tokenId, + bytes memory _data + ) private returns (bool) { + try ERC721A__IERC721Receiver(to).onERC721Received(_msgSenderERC721A(), from, tokenId, _data) returns ( + bytes4 retval + ) { + return retval == ERC721A__IERC721Receiver(to).onERC721Received.selector; + } catch (bytes memory reason) { + if (reason.length == 0) { + _revert(TransferToNonERC721ReceiverImplementer.selector); + } + assembly { + revert(add(32, reason), mload(reason)) + } + } + } + + // ============================================================= + // MINT OPERATIONS + // ============================================================= + + /** + * @dev Mints `quantity` tokens and transfers them to `to`. + * + * Requirements: + * + * - `to` cannot be the zero address. + * - `quantity` must be greater than 0. + * + * Emits a {Transfer} event for each mint. + */ + function _mint(address to, uint256 quantity) internal virtual { + uint256 startTokenId = _currentIndex; + if (quantity == 0) _revert(MintZeroQuantity.selector); + + _beforeTokenTransfers(address(0), to, startTokenId, quantity); + + // Overflows are incredibly unrealistic. + // `balance` and `numberMinted` have a maximum limit of 2**64. + // `tokenId` has a maximum limit of 2**256. + unchecked { + // Updates: + // - `address` to the owner. + // - `startTimestamp` to the timestamp of minting. + // - `burned` to `false`. + // - `nextInitialized` to `quantity == 1`. + _packedOwnerships[startTokenId] = _packOwnershipData( + to, + _nextInitializedFlag(quantity) | _nextExtraData(address(0), to, 0) + ); + + // Updates: + // - `balance += quantity`. + // - `numberMinted += quantity`. + // + // We can directly add to the `balance` and `numberMinted`. + _packedAddressData[to] += quantity * ((1 << _BITPOS_NUMBER_MINTED) | 1); + + // Mask `to` to the lower 160 bits, in case the upper bits somehow aren't clean. + uint256 toMasked = uint256(uint160(to)) & _BITMASK_ADDRESS; + + if (toMasked == 0) _revert(MintToZeroAddress.selector); + + uint256 end = startTokenId + quantity; + uint256 tokenId = startTokenId; + + do { + assembly { + // Emit the `Transfer` event. + log4( + 0, // Start of data (0, since no data). + 0, // End of data (0, since no data). + _TRANSFER_EVENT_SIGNATURE, // Signature. + 0, // `address(0)`. + toMasked, // `to`. + tokenId // `tokenId`. + ) + } + // The `!=` check ensures that large values of `quantity` + // that overflows uint256 will make the loop run out of gas. + } while (++tokenId != end); + + _currentIndex = end; + } + _afterTokenTransfers(address(0), to, startTokenId, quantity); + } + + /** + * @dev Mints `quantity` tokens and transfers them to `to`. + * + * This function is intended for efficient minting only during contract creation. + * + * It emits only one {ConsecutiveTransfer} as defined in + * [ERC2309](https://eips.ethereum.org/EIPS/eip-2309), + * instead of a sequence of {Transfer} event(s). + * + * Calling this function outside of contract creation WILL make your contract + * non-compliant with the ERC721 standard. + * For full ERC721 compliance, substituting ERC721 {Transfer} event(s) with the ERC2309 + * {ConsecutiveTransfer} event is only permissible during contract creation. + * + * Requirements: + * + * - `to` cannot be the zero address. + * - `quantity` must be greater than 0. + * + * Emits a {ConsecutiveTransfer} event. + */ + function _mintERC2309(address to, uint256 quantity) internal virtual { + uint256 startTokenId = _currentIndex; + if (to == address(0)) _revert(MintToZeroAddress.selector); + if (quantity == 0) _revert(MintZeroQuantity.selector); + if (quantity > _MAX_MINT_ERC2309_QUANTITY_LIMIT) _revert(MintERC2309QuantityExceedsLimit.selector); + + _beforeTokenTransfers(address(0), to, startTokenId, quantity); + + // Overflows are unrealistic due to the above check for `quantity` to be below the limit. + unchecked { + // Updates: + // - `balance += quantity`. + // - `numberMinted += quantity`. + // + // We can directly add to the `balance` and `numberMinted`. + _packedAddressData[to] += quantity * ((1 << _BITPOS_NUMBER_MINTED) | 1); + + // Updates: + // - `address` to the owner. + // - `startTimestamp` to the timestamp of minting. + // - `burned` to `false`. + // - `nextInitialized` to `quantity == 1`. + _packedOwnerships[startTokenId] = _packOwnershipData( + to, + _nextInitializedFlag(quantity) | _nextExtraData(address(0), to, 0) + ); + + emit ConsecutiveTransfer(startTokenId, startTokenId + quantity - 1, address(0), to); + + _currentIndex = startTokenId + quantity; + } + _afterTokenTransfers(address(0), to, startTokenId, quantity); + } + + /** + * @dev Safely mints `quantity` tokens and transfers them to `to`. + * + * Requirements: + * + * - If `to` refers to a smart contract, it must implement + * {IERC721Receiver-onERC721Received}, which is called for each safe transfer. + * - `quantity` must be greater than 0. + * + * See {_mint}. + * + * Emits a {Transfer} event for each mint. + */ + function _safeMint( + address to, + uint256 quantity, + bytes memory _data + ) internal virtual { + _mint(to, quantity); + + unchecked { + if (to.code.length != 0) { + uint256 end = _currentIndex; + uint256 index = end - quantity; + do { + if (!_checkContractOnERC721Received(address(0), to, index++, _data)) { + _revert(TransferToNonERC721ReceiverImplementer.selector); + } + } while (index < end); + // Reentrancy protection. + if (_currentIndex != end) _revert(bytes4(0)); + } + } + } + + /** + * @dev Equivalent to `_safeMint(to, quantity, '')`. + */ + function _safeMint(address to, uint256 quantity) internal virtual { + _safeMint(to, quantity, ''); + } + + // ============================================================= + // APPROVAL OPERATIONS + // ============================================================= + + /** + * @dev Equivalent to `_approve(to, tokenId, false)`. + */ + function _approve(address to, uint256 tokenId) internal virtual { + _approve(to, tokenId, false); + } + + /** + * @dev Gives permission to `to` to transfer `tokenId` token to another account. + * The approval is cleared when the token is transferred. + * + * Only a single account can be approved at a time, so approving the + * zero address clears previous approvals. + * + * Requirements: + * + * - `tokenId` must exist. + * + * Emits an {Approval} event. + */ + function _approve( + address to, + uint256 tokenId, + bool approvalCheck + ) internal virtual { + address owner = ownerOf(tokenId); + + if (approvalCheck && _msgSenderERC721A() != owner) + if (!isApprovedForAll(owner, _msgSenderERC721A())) { + _revert(ApprovalCallerNotOwnerNorApproved.selector); + } + + _tokenApprovals[tokenId].value = to; + emit Approval(owner, to, tokenId); + } + + // ============================================================= + // BURN OPERATIONS + // ============================================================= + + /** + * @dev Equivalent to `_burn(tokenId, false)`. + */ + function _burn(uint256 tokenId) internal virtual { + _burn(tokenId, false); + } + + /** + * @dev Destroys `tokenId`. + * The approval is cleared when the token is burned. + * + * Requirements: + * + * - `tokenId` must exist. + * + * Emits a {Transfer} event. + */ + function _burn(uint256 tokenId, bool approvalCheck) internal virtual { + uint256 prevOwnershipPacked = _packedOwnershipOf(tokenId); + + address from = address(uint160(prevOwnershipPacked)); + + (uint256 approvedAddressSlot, address approvedAddress) = _getApprovedSlotAndAddress(tokenId); + + if (approvalCheck) { + // The nested ifs save around 20+ gas over a compound boolean condition. + if (!_isSenderApprovedOrOwner(approvedAddress, from, _msgSenderERC721A())) + if (!isApprovedForAll(from, _msgSenderERC721A())) _revert(TransferCallerNotOwnerNorApproved.selector); + } + + _beforeTokenTransfers(from, address(0), tokenId, 1); + + // Clear approvals from the previous owner. + assembly { + if approvedAddress { + // This is equivalent to `delete _tokenApprovals[tokenId]`. + sstore(approvedAddressSlot, 0) + } + } + + // Underflow of the sender's balance is impossible because we check for + // ownership above and the recipient's balance can't realistically overflow. + // Counter overflow is incredibly unrealistic as `tokenId` would have to be 2**256. + unchecked { + // Updates: + // - `balance -= 1`. + // - `numberBurned += 1`. + // + // We can directly decrement the balance, and increment the number burned. + // This is equivalent to `packed -= 1; packed += 1 << _BITPOS_NUMBER_BURNED;`. + _packedAddressData[from] += (1 << _BITPOS_NUMBER_BURNED) - 1; + + // Updates: + // - `address` to the last owner. + // - `startTimestamp` to the timestamp of burning. + // - `burned` to `true`. + // - `nextInitialized` to `true`. + _packedOwnerships[tokenId] = _packOwnershipData( + from, + (_BITMASK_BURNED | _BITMASK_NEXT_INITIALIZED) | _nextExtraData(from, address(0), prevOwnershipPacked) + ); + + // If the next slot may not have been initialized (i.e. `nextInitialized == false`) . + if (prevOwnershipPacked & _BITMASK_NEXT_INITIALIZED == 0) { + uint256 nextTokenId = tokenId + 1; + // If the next slot's address is zero and not burned (i.e. packed value is zero). + if (_packedOwnerships[nextTokenId] == 0) { + // If the next slot is within bounds. + if (nextTokenId != _currentIndex) { + // Initialize the next slot to maintain correctness for `ownerOf(tokenId + 1)`. + _packedOwnerships[nextTokenId] = prevOwnershipPacked; + } + } + } + } + + emit Transfer(from, address(0), tokenId); + _afterTokenTransfers(from, address(0), tokenId, 1); + + // Overflow not possible, as _burnCounter cannot be exceed _currentIndex times. + unchecked { + _burnCounter++; + } + } + + // ============================================================= + // EXTRA DATA OPERATIONS + // ============================================================= + + /** + * @dev Directly sets the extra data for the ownership data `index`. + */ + function _setExtraDataAt(uint256 index, uint24 extraData) internal virtual { + uint256 packed = _packedOwnerships[index]; + if (packed == 0) _revert(OwnershipNotInitializedForExtraData.selector); + uint256 extraDataCasted; + // Cast `extraData` with assembly to avoid redundant masking. + assembly { + extraDataCasted := extraData + } + packed = (packed & _BITMASK_EXTRA_DATA_COMPLEMENT) | (extraDataCasted << _BITPOS_EXTRA_DATA); + _packedOwnerships[index] = packed; + } + + /** + * @dev Called during each token transfer to set the 24bit `extraData` field. + * Intended to be overridden by the cosumer contract. + * + * `previousExtraData` - the value of `extraData` before transfer. + * + * Calling conditions: + * + * - When `from` and `to` are both non-zero, `from`'s `tokenId` will be + * transferred to `to`. + * - When `from` is zero, `tokenId` will be minted for `to`. + * - When `to` is zero, `tokenId` will be burned by `from`. + * - `from` and `to` are never both zero. + */ + function _extraData( + address from, + address to, + uint24 previousExtraData + ) internal view virtual returns (uint24) {} + + /** + * @dev Returns the next extra data for the packed ownership data. + * The returned result is shifted into position. + */ + function _nextExtraData( + address from, + address to, + uint256 prevOwnershipPacked + ) private view returns (uint256) { + uint24 extraData = uint24(prevOwnershipPacked >> _BITPOS_EXTRA_DATA); + return uint256(_extraData(from, to, extraData)) << _BITPOS_EXTRA_DATA; + } + + // ============================================================= + // OTHER OPERATIONS + // ============================================================= + + /** + * @dev Returns the message sender (defaults to `msg.sender`). + * + * If you are writing GSN compatible contracts, you need to override this function. + */ + function _msgSenderERC721A() internal view virtual returns (address) { + return msg.sender; + } + + /** + * @dev Converts a uint256 to its ASCII string decimal representation. + */ + function _toString(uint256 value) internal pure virtual returns (string memory str) { + assembly { + // The maximum value of a uint256 contains 78 digits (1 byte per digit), but + // we allocate 0xa0 bytes to keep the free memory pointer 32-byte word aligned. + // We will need 1 word for the trailing zeros padding, 1 word for the length, + // and 3 words for a maximum of 78 digits. Total: 5 * 0x20 = 0xa0. + let m := add(mload(0x40), 0xa0) + // Update the free memory pointer to allocate. + mstore(0x40, m) + // Assign the `str` to the end. + str := sub(m, 0x20) + // Zeroize the slot after the string. + mstore(str, 0) + + // Cache the end of the memory to calculate the length later. + let end := str + + // We write the string from rightmost digit to leftmost digit. + // The following is essentially a do-while loop that also handles the zero case. + // prettier-ignore + for { let temp := value } 1 {} { + str := sub(str, 1) + // Write the character to the pointer. + // The ASCII index of the '0' character is 48. + mstore8(str, add(48, mod(temp, 10))) + // Keep dividing `temp` until zero. + temp := div(temp, 10) + // prettier-ignore + if iszero(temp) { break } + } + + let length := sub(end, str) + // Move the pointer 32 bytes leftwards to make room for the length. + str := sub(str, 0x20) + // Store the length. + mstore(str, length) + } + } + + /** + * @dev For more efficient reverts. + */ + function _revert(bytes4 errorSelector) internal pure { + assembly { + mstore(0x00, errorSelector) + revert(0x00, 0x04) + } + } +} \ No newline at end of file diff --git a/lib/erc721a/contracts/IERC721A.sol b/lib/erc721a/contracts/IERC721A.sol new file mode 100644 index 0000000..4bd87db --- /dev/null +++ b/lib/erc721a/contracts/IERC721A.sol @@ -0,0 +1,282 @@ +// SPDX-License-Identifier: MIT +// ERC721A Contracts v4.2.3 +// Creator: Chiru Labs + +pragma solidity ^0.8.4; + +/** + * @dev Interface of ERC721A. + */ +interface IERC721A { + /** + * The caller must own the token or be an approved operator. + */ + error ApprovalCallerNotOwnerNorApproved(); + + /** + * The token does not exist. + */ + error ApprovalQueryForNonexistentToken(); + + /** + * Cannot query the balance for the zero address. + */ + error BalanceQueryForZeroAddress(); + + /** + * Cannot mint to the zero address. + */ + error MintToZeroAddress(); + + /** + * The quantity of tokens minted must be more than zero. + */ + error MintZeroQuantity(); + + /** + * The token does not exist. + */ + error OwnerQueryForNonexistentToken(); + + /** + * The caller must own the token or be an approved operator. + */ + error TransferCallerNotOwnerNorApproved(); + + /** + * The token must be owned by `from`. + */ + error TransferFromIncorrectOwner(); + + /** + * Cannot safely transfer to a contract that does not implement the + * ERC721Receiver interface. + */ + error TransferToNonERC721ReceiverImplementer(); + + /** + * Cannot transfer to the zero address. + */ + error TransferToZeroAddress(); + + /** + * The token does not exist. + */ + error URIQueryForNonexistentToken(); + + /** + * The `quantity` minted with ERC2309 exceeds the safety limit. + */ + error MintERC2309QuantityExceedsLimit(); + + /** + * The `extraData` cannot be set on an unintialized ownership slot. + */ + error OwnershipNotInitializedForExtraData(); + + // ============================================================= + // STRUCTS + // ============================================================= + + struct TokenOwnership { + // The address of the owner. + address addr; + // Stores the start time of ownership with minimal overhead for tokenomics. + uint64 startTimestamp; + // Whether the token has been burned. + bool burned; + // Arbitrary data similar to `startTimestamp` that can be set via {_extraData}. + uint24 extraData; + } + + // ============================================================= + // TOKEN COUNTERS + // ============================================================= + + /** + * @dev Returns the total number of tokens in existence. + * Burned tokens will reduce the count. + * To get the total number of tokens minted, please see {_totalMinted}. + */ + function totalSupply() external view returns (uint256); + + // ============================================================= + // IERC165 + // ============================================================= + + /** + * @dev Returns true if this contract implements the interface defined by + * `interfaceId`. See the corresponding + * [EIP section](https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified) + * to learn more about how these ids are created. + * + * This function call must use less than 30000 gas. + */ + function supportsInterface(bytes4 interfaceId) external view returns (bool); + + // ============================================================= + // IERC721 + // ============================================================= + + /** + * @dev Emitted when `tokenId` token is transferred from `from` to `to`. + */ + event Transfer(address indexed from, address indexed to, uint256 indexed tokenId); + + /** + * @dev Emitted when `owner` enables `approved` to manage the `tokenId` token. + */ + event Approval(address indexed owner, address indexed approved, uint256 indexed tokenId); + + /** + * @dev Emitted when `owner` enables or disables + * (`approved`) `operator` to manage all of its assets. + */ + event ApprovalForAll(address indexed owner, address indexed operator, bool approved); + + /** + * @dev Returns the number of tokens in `owner`'s account. + */ + function balanceOf(address owner) external view returns (uint256 balance); + + /** + * @dev Returns the owner of the `tokenId` token. + * + * Requirements: + * + * - `tokenId` must exist. + */ + function ownerOf(uint256 tokenId) external view returns (address owner); + + /** + * @dev Safely transfers `tokenId` token from `from` to `to`, + * checking first that contract recipients are aware of the ERC721 protocol + * to prevent tokens from being forever locked. + * + * Requirements: + * + * - `from` cannot be the zero address. + * - `to` cannot be the zero address. + * - `tokenId` token must exist and be owned by `from`. + * - If the caller is not `from`, it must be have been allowed to move + * this token by either {approve} or {setApprovalForAll}. + * - If `to` refers to a smart contract, it must implement + * {IERC721Receiver-onERC721Received}, which is called upon a safe transfer. + * + * Emits a {Transfer} event. + */ + function safeTransferFrom( + address from, + address to, + uint256 tokenId, + bytes calldata data + ) external payable; + + /** + * @dev Equivalent to `safeTransferFrom(from, to, tokenId, '')`. + */ + function safeTransferFrom( + address from, + address to, + uint256 tokenId + ) external payable; + + /** + * @dev Transfers `tokenId` from `from` to `to`. + * + * WARNING: Usage of this method is discouraged, use {safeTransferFrom} + * whenever possible. + * + * Requirements: + * + * - `from` cannot be the zero address. + * - `to` cannot be the zero address. + * - `tokenId` token must be owned by `from`. + * - If the caller is not `from`, it must be approved to move this token + * by either {approve} or {setApprovalForAll}. + * + * Emits a {Transfer} event. + */ + function transferFrom( + address from, + address to, + uint256 tokenId + ) external payable; + + /** + * @dev Gives permission to `to` to transfer `tokenId` token to another account. + * The approval is cleared when the token is transferred. + * + * Only a single account can be approved at a time, so approving the + * zero address clears previous approvals. + * + * Requirements: + * + * - The caller must own the token or be an approved operator. + * - `tokenId` must exist. + * + * Emits an {Approval} event. + */ + function approve(address to, uint256 tokenId) external payable; + + /** + * @dev Approve or remove `operator` as an operator for the caller. + * Operators can call {transferFrom} or {safeTransferFrom} + * for any token owned by the caller. + * + * Requirements: + * + * - The `operator` cannot be the caller. + * + * Emits an {ApprovalForAll} event. + */ + function setApprovalForAll(address operator, bool _approved) external; + + /** + * @dev Returns the account approved for `tokenId` token. + * + * Requirements: + * + * - `tokenId` must exist. + */ + function getApproved(uint256 tokenId) external view returns (address operator); + + /** + * @dev Returns if the `operator` is allowed to manage all of the assets of `owner`. + * + * See {setApprovalForAll}. + */ + function isApprovedForAll(address owner, address operator) external view returns (bool); + + // ============================================================= + // IERC721Metadata + // ============================================================= + + /** + * @dev Returns the token collection name. + */ + function name() external view returns (string memory); + + /** + * @dev Returns the token collection symbol. + */ + function symbol() external view returns (string memory); + + /** + * @dev Returns the Uniform Resource Identifier (URI) for `tokenId` token. + */ + function tokenURI(uint256 tokenId) external view returns (string memory); + + // ============================================================= + // IERC2309 + // ============================================================= + + /** + * @dev Emitted when tokens in `fromTokenId` to `toTokenId` + * (inclusive) is transferred from `from` to `to`, as defined in the + * [ERC2309](https://eips.ethereum.org/EIPS/eip-2309) standard. + * + * See {_mintERC2309} for more details. + */ + event ConsecutiveTransfer(uint256 indexed fromTokenId, uint256 toTokenId, address indexed from, address indexed to); +} diff --git a/lib/erc721a/contracts/extensions/ERC4907A.sol b/lib/erc721a/contracts/extensions/ERC4907A.sol new file mode 100644 index 0000000..fa0987c --- /dev/null +++ b/lib/erc721a/contracts/extensions/ERC4907A.sol @@ -0,0 +1,93 @@ +// SPDX-License-Identifier: MIT +// ERC721A Contracts v4.2.3 +// Creator: Chiru Labs + +pragma solidity ^0.8.4; + +import './IERC4907A.sol'; +import '../ERC721A.sol'; + +/** + * @title ERC4907A + * + * @dev [ERC4907](https://eips.ethereum.org/EIPS/eip-4907) compliant + * extension of ERC721A, which allows owners and authorized addresses + * to add a time-limited role with restricted permissions to ERC721 tokens. + */ +abstract contract ERC4907A is ERC721A, IERC4907A { + // The bit position of `expires` in packed user info. + uint256 private constant _BITPOS_EXPIRES = 160; + + // Mapping from token ID to user info. + // + // Bits Layout: + // - [0..159] `user` + // - [160..223] `expires` + mapping(uint256 => uint256) private _packedUserInfo; + + /** + * @dev Sets the `user` and `expires` for `tokenId`. + * The zero address indicates there is no user. + * + * Requirements: + * + * - The caller must own `tokenId` or be an approved operator. + */ + function setUser( + uint256 tokenId, + address user, + uint64 expires + ) public virtual override { + // Require the caller to be either the token owner or an approved operator. + address owner = ownerOf(tokenId); + if (_msgSenderERC721A() != owner) + if (!isApprovedForAll(owner, _msgSenderERC721A())) + if (getApproved(tokenId) != _msgSenderERC721A()) _revert(SetUserCallerNotOwnerNorApproved.selector); + + _packedUserInfo[tokenId] = (uint256(expires) << _BITPOS_EXPIRES) | uint256(uint160(user)); + + emit UpdateUser(tokenId, user, expires); + } + + /** + * @dev Returns the user address for `tokenId`. + * The zero address indicates that there is no user or if the user is expired. + */ + function userOf(uint256 tokenId) public view virtual override returns (address) { + uint256 packed = _packedUserInfo[tokenId]; + assembly { + // Branchless `packed *= (block.timestamp <= expires ? 1 : 0)`. + // If the `block.timestamp == expires`, the `lt` clause will be true + // if there is a non-zero user address in the lower 160 bits of `packed`. + packed := mul( + packed, + // `block.timestamp <= expires ? 1 : 0`. + lt(shl(_BITPOS_EXPIRES, timestamp()), packed) + ) + } + return address(uint160(packed)); + } + + /** + * @dev Returns the user's expires of `tokenId`. + */ + function userExpires(uint256 tokenId) public view virtual override returns (uint256) { + return _packedUserInfo[tokenId] >> _BITPOS_EXPIRES; + } + + /** + * @dev Override of {IERC165-supportsInterface}. + */ + function supportsInterface(bytes4 interfaceId) public view virtual override(ERC721A, IERC721A) returns (bool) { + // The interface ID for ERC4907 is `0xad092b5c`, + // as defined in [ERC4907](https://eips.ethereum.org/EIPS/eip-4907). + return super.supportsInterface(interfaceId) || interfaceId == 0xad092b5c; + } + + /** + * @dev Returns the user address for `tokenId`, ignoring the expiry status. + */ + function _explicitUserOf(uint256 tokenId) internal view virtual returns (address) { + return address(uint160(_packedUserInfo[tokenId])); + } +} diff --git a/lib/erc721a/contracts/extensions/ERC721ABurnable.sol b/lib/erc721a/contracts/extensions/ERC721ABurnable.sol new file mode 100644 index 0000000..c66e5da --- /dev/null +++ b/lib/erc721a/contracts/extensions/ERC721ABurnable.sol @@ -0,0 +1,26 @@ +// SPDX-License-Identifier: MIT +// ERC721A Contracts v4.2.3 +// Creator: Chiru Labs + +pragma solidity ^0.8.4; + +import './IERC721ABurnable.sol'; +import '../ERC721A.sol'; + +/** + * @title ERC721ABurnable. + * + * @dev ERC721A token that can be irreversibly burned (destroyed). + */ +abstract contract ERC721ABurnable is ERC721A, IERC721ABurnable { + /** + * @dev Burns `tokenId`. See {ERC721A-_burn}. + * + * Requirements: + * + * - The caller must own `tokenId` or be an approved operator. + */ + function burn(uint256 tokenId) public virtual override { + _burn(tokenId, true); + } +} diff --git a/lib/erc721a/contracts/extensions/ERC721AQueryable.sol b/lib/erc721a/contracts/extensions/ERC721AQueryable.sol new file mode 100644 index 0000000..3b18132 --- /dev/null +++ b/lib/erc721a/contracts/extensions/ERC721AQueryable.sol @@ -0,0 +1,236 @@ +// SPDX-License-Identifier: MIT +// ERC721A Contracts v4.2.3 +// Creator: Chiru Labs + +pragma solidity ^0.8.4; + +import './IERC721AQueryable.sol'; +import '../ERC721A.sol'; + +/** + * @title ERC721AQueryable. + * + * @dev ERC721A subclass with convenience query functions. + */ +abstract contract ERC721AQueryable is ERC721A, IERC721AQueryable { + /** + * @dev Returns the `TokenOwnership` struct at `tokenId` without reverting. + * + * If the `tokenId` is out of bounds: + * + * - `addr = address(0)` + * - `startTimestamp = 0` + * - `burned = false` + * - `extraData = 0` + * + * If the `tokenId` is burned: + * + * - `addr =
` + * - `startTimestamp = ` + * - `burned = true` + * - `extraData = ` + * + * Otherwise: + * + * - `addr =
` + * - `startTimestamp = ` + * - `burned = false` + * - `extraData = ` + */ + function explicitOwnershipOf(uint256 tokenId) + public + view + virtual + override + returns (TokenOwnership memory ownership) + { + if (tokenId >= _startTokenId()) { + if (tokenId < _nextTokenId()) { + ownership = _ownershipAt(tokenId); + if (!ownership.burned) { + ownership = _ownershipOf(tokenId); + } + } + } + } + + /** + * @dev Returns an array of `TokenOwnership` structs at `tokenIds` in order. + * See {ERC721AQueryable-explicitOwnershipOf} + */ + function explicitOwnershipsOf(uint256[] calldata tokenIds) + external + view + virtual + override + returns (TokenOwnership[] memory) + { + TokenOwnership[] memory ownerships; + uint256 i = tokenIds.length; + assembly { + // Grab the free memory pointer. + ownerships := mload(0x40) + // Store the length. + mstore(ownerships, i) + // Allocate one word for the length, + // `tokenIds.length` words for the pointers. + i := shl(5, i) // Multiply `i` by 32. + mstore(0x40, add(add(ownerships, 0x20), i)) + } + while (i != 0) { + uint256 tokenId; + assembly { + i := sub(i, 0x20) + tokenId := calldataload(add(tokenIds.offset, i)) + } + TokenOwnership memory ownership = explicitOwnershipOf(tokenId); + assembly { + // Store the pointer of `ownership` in the `ownerships` array. + mstore(add(add(ownerships, 0x20), i), ownership) + } + } + return ownerships; + } + + /** + * @dev Returns an array of token IDs owned by `owner`, + * in the range [`start`, `stop`) + * (i.e. `start <= tokenId < stop`). + * + * This function allows for tokens to be queried if the collection + * grows too big for a single call of {ERC721AQueryable-tokensOfOwner}. + * + * Requirements: + * + * - `start < stop` + */ + function tokensOfOwnerIn( + address owner, + uint256 start, + uint256 stop + ) external view virtual override returns (uint256[] memory) { + unchecked { + if (start >= stop) _revert(InvalidQueryRange.selector); + // Set `start = max(start, _startTokenId())`. + if (start < _startTokenId()) { + start = _startTokenId(); + } + uint256 stopLimit = _nextTokenId(); + // Set `stop = min(stop, stopLimit)`. + if (stop >= stopLimit) { + stop = stopLimit; + } + uint256[] memory tokenIds; + uint256 tokenIdsMaxLength = balanceOf(owner); + bool startLtStop = start < stop; + assembly { + // Set `tokenIdsMaxLength` to zero if `start` is less than `stop`. + tokenIdsMaxLength := mul(tokenIdsMaxLength, startLtStop) + } + if (tokenIdsMaxLength != 0) { + // Set `tokenIdsMaxLength = min(balanceOf(owner), stop - start)`, + // to cater for cases where `balanceOf(owner)` is too big. + if (stop - start <= tokenIdsMaxLength) { + tokenIdsMaxLength = stop - start; + } + assembly { + // Grab the free memory pointer. + tokenIds := mload(0x40) + // Allocate one word for the length, and `tokenIdsMaxLength` words + // for the data. `shl(5, x)` is equivalent to `mul(32, x)`. + mstore(0x40, add(tokenIds, shl(5, add(tokenIdsMaxLength, 1)))) + } + // We need to call `explicitOwnershipOf(start)`, + // because the slot at `start` may not be initialized. + TokenOwnership memory ownership = explicitOwnershipOf(start); + address currOwnershipAddr; + // If the starting slot exists (i.e. not burned), + // initialize `currOwnershipAddr`. + // `ownership.address` will not be zero, + // as `start` is clamped to the valid token ID range. + if (!ownership.burned) { + currOwnershipAddr = ownership.addr; + } + uint256 tokenIdsIdx; + // Use a do-while, which is slightly more efficient for this case, + // as the array will at least contain one element. + do { + ownership = _ownershipAt(start); + assembly { + // if `ownership.burned == false`. + if iszero(mload(add(ownership, 0x40))) { + // if `ownership.addr != address(0)`. + // The `addr` already has it's upper 96 bits clearned, + // since it is written to memory with regular Solidity. + if mload(ownership) { + currOwnershipAddr := mload(ownership) + } + // if `currOwnershipAddr == owner`. + // The `shl(96, x)` is to make the comparison agnostic to any + // dirty upper 96 bits in `owner`. + if iszero(shl(96, xor(currOwnershipAddr, owner))) { + tokenIdsIdx := add(tokenIdsIdx, 1) + mstore(add(tokenIds, shl(5, tokenIdsIdx)), start) + } + } + start := add(start, 1) + } + } while (!(start == stop || tokenIdsIdx == tokenIdsMaxLength)); + // Store the length of the array. + assembly { + mstore(tokenIds, tokenIdsIdx) + } + } + return tokenIds; + } + } + + /** + * @dev Returns an array of token IDs owned by `owner`. + * + * This function scans the ownership mapping and is O(`totalSupply`) in complexity. + * It is meant to be called off-chain. + * + * See {ERC721AQueryable-tokensOfOwnerIn} for splitting the scan into + * multiple smaller scans if the collection is large enough to cause + * an out-of-gas error (10K collections should be fine). + */ + function tokensOfOwner(address owner) external view virtual override returns (uint256[] memory) { + uint256 tokenIdsLength = balanceOf(owner); + uint256[] memory tokenIds; + assembly { + // Grab the free memory pointer. + tokenIds := mload(0x40) + // Allocate one word for the length, and `tokenIdsMaxLength` words + // for the data. `shl(5, x)` is equivalent to `mul(32, x)`. + mstore(0x40, add(tokenIds, shl(5, add(tokenIdsLength, 1)))) + // Store the length of `tokenIds`. + mstore(tokenIds, tokenIdsLength) + } + address currOwnershipAddr; + uint256 tokenIdsIdx; + for (uint256 i = _startTokenId(); tokenIdsIdx != tokenIdsLength; ) { + TokenOwnership memory ownership = _ownershipAt(i); + assembly { + // if `ownership.burned == false`. + if iszero(mload(add(ownership, 0x40))) { + // if `ownership.addr != address(0)`. + // The `addr` already has it's upper 96 bits clearned, + // since it is written to memory with regular Solidity. + if mload(ownership) { + currOwnershipAddr := mload(ownership) + } + // if `currOwnershipAddr == owner`. + // The `shl(96, x)` is to make the comparison agnostic to any + // dirty upper 96 bits in `owner`. + if iszero(shl(96, xor(currOwnershipAddr, owner))) { + tokenIdsIdx := add(tokenIdsIdx, 1) + mstore(add(tokenIds, shl(5, tokenIdsIdx)), i) + } + } + i := add(i, 1) + } + } + return tokenIds; + } +} diff --git a/lib/erc721a/contracts/extensions/IERC4907A.sol b/lib/erc721a/contracts/extensions/IERC4907A.sol new file mode 100644 index 0000000..2e1b690 --- /dev/null +++ b/lib/erc721a/contracts/extensions/IERC4907A.sol @@ -0,0 +1,48 @@ +// SPDX-License-Identifier: MIT +// ERC721A Contracts v4.2.3 +// Creator: Chiru Labs + +pragma solidity ^0.8.4; + +import '../IERC721A.sol'; + +/** + * @dev Interface of ERC4907A. + */ +interface IERC4907A is IERC721A { + /** + * The caller must own the token or be an approved operator. + */ + error SetUserCallerNotOwnerNorApproved(); + + /** + * @dev Emitted when the `user` of an NFT or the `expires` of the `user` is changed. + * The zero address for user indicates that there is no user address. + */ + event UpdateUser(uint256 indexed tokenId, address indexed user, uint64 expires); + + /** + * @dev Sets the `user` and `expires` for `tokenId`. + * The zero address indicates there is no user. + * + * Requirements: + * + * - The caller must own `tokenId` or be an approved operator. + */ + function setUser( + uint256 tokenId, + address user, + uint64 expires + ) external; + + /** + * @dev Returns the user address for `tokenId`. + * The zero address indicates that there is no user or if the user is expired. + */ + function userOf(uint256 tokenId) external view returns (address); + + /** + * @dev Returns the user's expires of `tokenId`. + */ + function userExpires(uint256 tokenId) external view returns (uint256); +} diff --git a/lib/erc721a/contracts/extensions/IERC721ABurnable.sol b/lib/erc721a/contracts/extensions/IERC721ABurnable.sol new file mode 100644 index 0000000..bb0d192 --- /dev/null +++ b/lib/erc721a/contracts/extensions/IERC721ABurnable.sol @@ -0,0 +1,21 @@ +// SPDX-License-Identifier: MIT +// ERC721A Contracts v4.2.3 +// Creator: Chiru Labs + +pragma solidity ^0.8.4; + +import '../IERC721A.sol'; + +/** + * @dev Interface of ERC721ABurnable. + */ +interface IERC721ABurnable is IERC721A { + /** + * @dev Burns `tokenId`. See {ERC721A-_burn}. + * + * Requirements: + * + * - The caller must own `tokenId` or be an approved operator. + */ + function burn(uint256 tokenId) external; +} diff --git a/lib/erc721a/contracts/extensions/IERC721AQueryable.sol b/lib/erc721a/contracts/extensions/IERC721AQueryable.sol new file mode 100644 index 0000000..f004946 --- /dev/null +++ b/lib/erc721a/contracts/extensions/IERC721AQueryable.sol @@ -0,0 +1,79 @@ +// SPDX-License-Identifier: MIT +// ERC721A Contracts v4.2.3 +// Creator: Chiru Labs + +pragma solidity ^0.8.4; + +import '../IERC721A.sol'; + +/** + * @dev Interface of ERC721AQueryable. + */ +interface IERC721AQueryable is IERC721A { + /** + * Invalid query range (`start` >= `stop`). + */ + error InvalidQueryRange(); + + /** + * @dev Returns the `TokenOwnership` struct at `tokenId` without reverting. + * + * If the `tokenId` is out of bounds: + * + * - `addr = address(0)` + * - `startTimestamp = 0` + * - `burned = false` + * - `extraData = 0` + * + * If the `tokenId` is burned: + * + * - `addr =
` + * - `startTimestamp = ` + * - `burned = true` + * - `extraData = ` + * + * Otherwise: + * + * - `addr =
` + * - `startTimestamp = ` + * - `burned = false` + * - `extraData = ` + */ + function explicitOwnershipOf(uint256 tokenId) external view returns (TokenOwnership memory); + + /** + * @dev Returns an array of `TokenOwnership` structs at `tokenIds` in order. + * See {ERC721AQueryable-explicitOwnershipOf} + */ + function explicitOwnershipsOf(uint256[] memory tokenIds) external view returns (TokenOwnership[] memory); + + /** + * @dev Returns an array of token IDs owned by `owner`, + * in the range [`start`, `stop`) + * (i.e. `start <= tokenId < stop`). + * + * This function allows for tokens to be queried if the collection + * grows too big for a single call of {ERC721AQueryable-tokensOfOwner}. + * + * Requirements: + * + * - `start < stop` + */ + function tokensOfOwnerIn( + address owner, + uint256 start, + uint256 stop + ) external view returns (uint256[] memory); + + /** + * @dev Returns an array of token IDs owned by `owner`. + * + * This function scans the ownership mapping and is O(`totalSupply`) in complexity. + * It is meant to be called off-chain. + * + * See {ERC721AQueryable-tokensOfOwnerIn} for splitting the scan into + * multiple smaller scans if the collection is large enough to cause + * an out-of-gas error (10K collections should be fine). + */ + function tokensOfOwner(address owner) external view returns (uint256[] memory); +} diff --git a/lib/erc721a/contracts/interfaces/IERC4907A.sol b/lib/erc721a/contracts/interfaces/IERC4907A.sol new file mode 100644 index 0000000..f587a34 --- /dev/null +++ b/lib/erc721a/contracts/interfaces/IERC4907A.sol @@ -0,0 +1,7 @@ +// SPDX-License-Identifier: MIT +// ERC721A Contracts v4.2.3 +// Creator: Chiru Labs + +pragma solidity ^0.8.4; + +import '../extensions/IERC4907A.sol'; diff --git a/lib/erc721a/contracts/interfaces/IERC721A.sol b/lib/erc721a/contracts/interfaces/IERC721A.sol new file mode 100644 index 0000000..db605e0 --- /dev/null +++ b/lib/erc721a/contracts/interfaces/IERC721A.sol @@ -0,0 +1,7 @@ +// SPDX-License-Identifier: MIT +// ERC721A Contracts v4.2.3 +// Creator: Chiru Labs + +pragma solidity ^0.8.4; + +import '../IERC721A.sol'; diff --git a/lib/erc721a/contracts/interfaces/IERC721ABurnable.sol b/lib/erc721a/contracts/interfaces/IERC721ABurnable.sol new file mode 100644 index 0000000..cdcf637 --- /dev/null +++ b/lib/erc721a/contracts/interfaces/IERC721ABurnable.sol @@ -0,0 +1,7 @@ +// SPDX-License-Identifier: MIT +// ERC721A Contracts v4.2.3 +// Creator: Chiru Labs + +pragma solidity ^0.8.4; + +import '../extensions/IERC721ABurnable.sol'; diff --git a/lib/erc721a/contracts/interfaces/IERC721AQueryable.sol b/lib/erc721a/contracts/interfaces/IERC721AQueryable.sol new file mode 100644 index 0000000..e97c462 --- /dev/null +++ b/lib/erc721a/contracts/interfaces/IERC721AQueryable.sol @@ -0,0 +1,7 @@ +// SPDX-License-Identifier: MIT +// ERC721A Contracts v4.2.3 +// Creator: Chiru Labs + +pragma solidity ^0.8.4; + +import '../extensions/IERC721AQueryable.sol'; diff --git a/lib/erc721a/contracts/mocks/ERC4907AMock.sol b/lib/erc721a/contracts/mocks/ERC4907AMock.sol new file mode 100644 index 0000000..66ecc91 --- /dev/null +++ b/lib/erc721a/contracts/mocks/ERC4907AMock.sol @@ -0,0 +1,23 @@ +// SPDX-License-Identifier: MIT +// ERC721A Contracts v4.2.3 +// Creators: Chiru Labs + +pragma solidity ^0.8.4; + +import '../extensions/ERC4907A.sol'; + +contract ERC4907AMock is ERC721A, ERC4907A { + constructor(string memory name_, string memory symbol_) ERC721A(name_, symbol_) {} + + function mint(address to, uint256 quantity) public { + _mint(to, quantity); + } + + function supportsInterface(bytes4 interfaceId) public view virtual override(ERC721A, ERC4907A) returns (bool) { + return super.supportsInterface(interfaceId); + } + + function explicitUserOf(uint256 tokenId) public view returns (address) { + return _explicitUserOf(tokenId); + } +} diff --git a/lib/erc721a/contracts/mocks/ERC721ABurnableMock.sol b/lib/erc721a/contracts/mocks/ERC721ABurnableMock.sol new file mode 100644 index 0000000..b4c86cc --- /dev/null +++ b/lib/erc721a/contracts/mocks/ERC721ABurnableMock.sol @@ -0,0 +1,35 @@ +// SPDX-License-Identifier: MIT +// ERC721A Contracts v4.2.3 +// Creators: Chiru Labs + +pragma solidity ^0.8.4; + +import '../extensions/ERC721ABurnable.sol'; + +contract ERC721ABurnableMock is ERC721A, ERC721ABurnable { + constructor(string memory name_, string memory symbol_) ERC721A(name_, symbol_) {} + + function exists(uint256 tokenId) public view returns (bool) { + return _exists(tokenId); + } + + function safeMint(address to, uint256 quantity) public { + _safeMint(to, quantity); + } + + function getOwnershipAt(uint256 index) public view returns (TokenOwnership memory) { + return _ownershipAt(index); + } + + function totalMinted() public view returns (uint256) { + return _totalMinted(); + } + + function totalBurned() public view returns (uint256) { + return _totalBurned(); + } + + function numberBurned(address owner) public view returns (uint256) { + return _numberBurned(owner); + } +} diff --git a/lib/erc721a/contracts/mocks/ERC721ABurnableStartTokenIdMock.sol b/lib/erc721a/contracts/mocks/ERC721ABurnableStartTokenIdMock.sol new file mode 100644 index 0000000..212d29b --- /dev/null +++ b/lib/erc721a/contracts/mocks/ERC721ABurnableStartTokenIdMock.sol @@ -0,0 +1,20 @@ +// SPDX-License-Identifier: MIT +// ERC721A Contracts v4.2.3 +// Creators: Chiru Labs + +pragma solidity ^0.8.4; + +import './ERC721ABurnableMock.sol'; +import './StartTokenIdHelper.sol'; + +contract ERC721ABurnableStartTokenIdMock is StartTokenIdHelper, ERC721ABurnableMock { + constructor( + string memory name_, + string memory symbol_, + uint256 startTokenId_ + ) StartTokenIdHelper(startTokenId_) ERC721ABurnableMock(name_, symbol_) {} + + function _startTokenId() internal view override returns (uint256) { + return startTokenId; + } +} diff --git a/lib/erc721a/contracts/mocks/ERC721AGasReporterMock.sol b/lib/erc721a/contracts/mocks/ERC721AGasReporterMock.sol new file mode 100644 index 0000000..4511b75 --- /dev/null +++ b/lib/erc721a/contracts/mocks/ERC721AGasReporterMock.sol @@ -0,0 +1,72 @@ +// SPDX-License-Identifier: MIT +// ERC721A Contracts v4.2.3 +// Creators: Chiru Labs + +pragma solidity ^0.8.4; + +import '../ERC721A.sol'; + +contract ERC721AGasReporterMock is ERC721A { + constructor(string memory name_, string memory symbol_) ERC721A(name_, symbol_) {} + + function safeMintOne(address to) public { + _safeMint(to, 1); + } + + function mintOne(address to) public { + _mint(to, 1); + } + + function safeMintTen(address to) public { + _safeMint(to, 10); + } + + function mintTen(address to) public { + _mint(to, 10); + } + + function transferTenAsc(address to) public { + unchecked { + transferFrom(msg.sender, to, 0); + transferFrom(msg.sender, to, 1); + transferFrom(msg.sender, to, 2); + transferFrom(msg.sender, to, 3); + transferFrom(msg.sender, to, 4); + transferFrom(msg.sender, to, 5); + transferFrom(msg.sender, to, 6); + transferFrom(msg.sender, to, 7); + transferFrom(msg.sender, to, 8); + transferFrom(msg.sender, to, 9); + } + } + + function transferTenDesc(address to) public { + unchecked { + transferFrom(msg.sender, to, 9); + transferFrom(msg.sender, to, 8); + transferFrom(msg.sender, to, 7); + transferFrom(msg.sender, to, 6); + transferFrom(msg.sender, to, 5); + transferFrom(msg.sender, to, 4); + transferFrom(msg.sender, to, 3); + transferFrom(msg.sender, to, 2); + transferFrom(msg.sender, to, 1); + transferFrom(msg.sender, to, 0); + } + } + + function transferTenAvg(address to) public { + unchecked { + transferFrom(msg.sender, to, 4); + transferFrom(msg.sender, to, 5); + transferFrom(msg.sender, to, 3); + transferFrom(msg.sender, to, 6); + transferFrom(msg.sender, to, 2); + transferFrom(msg.sender, to, 7); + transferFrom(msg.sender, to, 1); + transferFrom(msg.sender, to, 8); + transferFrom(msg.sender, to, 0); + transferFrom(msg.sender, to, 9); + } + } +} diff --git a/lib/erc721a/contracts/mocks/ERC721AMock.sol b/lib/erc721a/contracts/mocks/ERC721AMock.sol new file mode 100644 index 0000000..ca5e535 --- /dev/null +++ b/lib/erc721a/contracts/mocks/ERC721AMock.sol @@ -0,0 +1,87 @@ +// SPDX-License-Identifier: MIT +// ERC721A Contracts v4.2.3 +// Creators: Chiru Labs + +pragma solidity ^0.8.4; + +import '../ERC721A.sol'; + +contract ERC721AMock is ERC721A { + constructor(string memory name_, string memory symbol_) ERC721A(name_, symbol_) {} + + function numberMinted(address owner) public view returns (uint256) { + return _numberMinted(owner); + } + + function totalMinted() public view returns (uint256) { + return _totalMinted(); + } + + function totalBurned() public view returns (uint256) { + return _totalBurned(); + } + + function nextTokenId() public view returns (uint256) { + return _nextTokenId(); + } + + function getAux(address owner) public view returns (uint64) { + return _getAux(owner); + } + + function setAux(address owner, uint64 aux) public { + _setAux(owner, aux); + } + + function directApprove(address to, uint256 tokenId) public { + _approve(to, tokenId); + } + + function baseURI() public view returns (string memory) { + return _baseURI(); + } + + function exists(uint256 tokenId) public view returns (bool) { + return _exists(tokenId); + } + + function safeMint(address to, uint256 quantity) public { + _safeMint(to, quantity); + } + + function safeMint( + address to, + uint256 quantity, + bytes memory _data + ) public { + _safeMint(to, quantity, _data); + } + + function mint(address to, uint256 quantity) public { + _mint(to, quantity); + } + + function burn(uint256 tokenId) public { + _burn(tokenId); + } + + function burn(uint256 tokenId, bool approvalCheck) public { + _burn(tokenId, approvalCheck); + } + + function toString(uint256 x) public pure returns (string memory) { + return _toString(x); + } + + function getOwnershipAt(uint256 index) public view returns (TokenOwnership memory) { + return _ownershipAt(index); + } + + function getOwnershipOf(uint256 index) public view returns (TokenOwnership memory) { + return _ownershipOf(index); + } + + function initializeOwnershipAt(uint256 index) public { + _initializeOwnershipAt(index); + } +} diff --git a/lib/erc721a/contracts/mocks/ERC721AQueryableMock.sol b/lib/erc721a/contracts/mocks/ERC721AQueryableMock.sol new file mode 100644 index 0000000..74d18b9 --- /dev/null +++ b/lib/erc721a/contracts/mocks/ERC721AQueryableMock.sol @@ -0,0 +1,16 @@ +// SPDX-License-Identifier: MIT +// ERC721A Contracts v4.2.3 +// Creators: Chiru Labs + +pragma solidity ^0.8.4; + +import '../extensions/ERC721AQueryable.sol'; +import '../extensions/ERC721ABurnable.sol'; + +contract ERC721AQueryableMock is ERC721AQueryable, ERC721ABurnable { + constructor(string memory name_, string memory symbol_) ERC721A(name_, symbol_) {} + + function safeMint(address to, uint256 quantity) public { + _safeMint(to, quantity); + } +} diff --git a/lib/erc721a/contracts/mocks/ERC721AQueryableStartTokenIdMock.sol b/lib/erc721a/contracts/mocks/ERC721AQueryableStartTokenIdMock.sol new file mode 100644 index 0000000..3b01084 --- /dev/null +++ b/lib/erc721a/contracts/mocks/ERC721AQueryableStartTokenIdMock.sol @@ -0,0 +1,20 @@ +// SPDX-License-Identifier: MIT +// ERC721A Contracts v4.2.3 +// Creators: Chiru Labs + +pragma solidity ^0.8.4; + +import './ERC721AQueryableMock.sol'; +import './StartTokenIdHelper.sol'; + +contract ERC721AQueryableStartTokenIdMock is StartTokenIdHelper, ERC721AQueryableMock { + constructor( + string memory name_, + string memory symbol_, + uint256 startTokenId_ + ) StartTokenIdHelper(startTokenId_) ERC721AQueryableMock(name_, symbol_) {} + + function _startTokenId() internal view override returns (uint256) { + return startTokenId; + } +} diff --git a/lib/erc721a/contracts/mocks/ERC721AStartTokenIdMock.sol b/lib/erc721a/contracts/mocks/ERC721AStartTokenIdMock.sol new file mode 100644 index 0000000..fa4acbf --- /dev/null +++ b/lib/erc721a/contracts/mocks/ERC721AStartTokenIdMock.sol @@ -0,0 +1,20 @@ +// SPDX-License-Identifier: MIT +// ERC721A Contracts v4.2.3 +// Creators: Chiru Labs + +pragma solidity ^0.8.4; + +import './ERC721AMock.sol'; +import './StartTokenIdHelper.sol'; + +contract ERC721AStartTokenIdMock is StartTokenIdHelper, ERC721AMock { + constructor( + string memory name_, + string memory symbol_, + uint256 startTokenId_ + ) StartTokenIdHelper(startTokenId_) ERC721AMock(name_, symbol_) {} + + function _startTokenId() internal view override returns (uint256) { + return startTokenId; + } +} diff --git a/lib/erc721a/contracts/mocks/ERC721ATransferCounterMock.sol b/lib/erc721a/contracts/mocks/ERC721ATransferCounterMock.sol new file mode 100644 index 0000000..e9323f4 --- /dev/null +++ b/lib/erc721a/contracts/mocks/ERC721ATransferCounterMock.sol @@ -0,0 +1,29 @@ +// SPDX-License-Identifier: MIT +// ERC721A Contracts v4.2.3 +// Creators: Chiru Labs + +pragma solidity ^0.8.4; + +import './ERC721AMock.sol'; + +contract ERC721ATransferCounterMock is ERC721AMock { + constructor(string memory name_, string memory symbol_) ERC721AMock(name_, symbol_) {} + + function _extraData( + address from, + address to, + uint24 previousExtraData + ) internal view virtual override returns (uint24) { + if (from == address(0)) { + return 42; + } + if (to == address(0)) { + return 1337; + } + return previousExtraData + 1; + } + + function setExtraDataAt(uint256 index, uint24 extraData) public { + _setExtraDataAt(index, extraData); + } +} diff --git a/lib/erc721a/contracts/mocks/ERC721AWithERC2309Mock.sol b/lib/erc721a/contracts/mocks/ERC721AWithERC2309Mock.sol new file mode 100644 index 0000000..affb8ea --- /dev/null +++ b/lib/erc721a/contracts/mocks/ERC721AWithERC2309Mock.sol @@ -0,0 +1,39 @@ +// SPDX-License-Identifier: MIT +// ERC721A Contracts v4.2.3 +// Creators: Chiru Labs + +pragma solidity ^0.8.4; + +import '../ERC721A.sol'; + +contract ERC721AWithERC2309Mock is ERC721A { + constructor( + string memory name_, + string memory symbol_, + address to, + uint256 quantity, + bool mintInConstructor + ) ERC721A(name_, symbol_) { + if (mintInConstructor) { + _mintERC2309(to, quantity); + } + } + + /** + * @dev This function is only for gas comparison purposes. + * Calling `_mintERC3201` outside of contract creation is non-compliant + * with the ERC721 standard. + */ + function mintOneERC2309(address to) public { + _mintERC2309(to, 1); + } + + /** + * @dev This function is only for gas comparison purposes. + * Calling `_mintERC3201` outside of contract creation is non-compliant + * with the ERC721 standard. + */ + function mintTenERC2309(address to) public { + _mintERC2309(to, 10); + } +} diff --git a/lib/erc721a/contracts/mocks/ERC721ReceiverMock.sol b/lib/erc721a/contracts/mocks/ERC721ReceiverMock.sol new file mode 100644 index 0000000..e28ea2d --- /dev/null +++ b/lib/erc721a/contracts/mocks/ERC721ReceiverMock.sol @@ -0,0 +1,57 @@ +// SPDX-License-Identifier: MIT +// ERC721A Contracts v4.2.3 +// Creators: Chiru Labs + +pragma solidity ^0.8.4; + +import '../ERC721A.sol'; + +interface IERC721AMock { + function safeMint(address to, uint256 quantity) external; +} + +contract ERC721ReceiverMock is ERC721A__IERC721Receiver { + enum Error { + None, + RevertWithMessage, + RevertWithoutMessage, + Panic + } + + bytes4 private immutable _retval; + address private immutable _erc721aMock; + + event Received(address operator, address from, uint256 tokenId, bytes data, uint256 gas); + + constructor(bytes4 retval, address erc721aMock) { + _retval = retval; + _erc721aMock = erc721aMock; + } + + function onERC721Received( + address operator, + address from, + uint256 tokenId, + bytes memory data + ) public override returns (bytes4) { + uint256 dataValue = data.length == 0 ? 0 : uint256(uint8(data[0])); + + // For testing reverts with a message from the receiver contract. + if (dataValue == 0x01) { + revert('reverted in the receiver contract!'); + } + + // For testing with the returned wrong value from the receiver contract. + if (dataValue == 0x02) { + return 0x0; + } + + // For testing the reentrancy protection. + if (dataValue == 0x03) { + IERC721AMock(_erc721aMock).safeMint(address(this), 1); + } + + emit Received(operator, from, tokenId, data, 20000); + return _retval; + } +} diff --git a/lib/erc721a/contracts/mocks/StartTokenIdHelper.sol b/lib/erc721a/contracts/mocks/StartTokenIdHelper.sol new file mode 100644 index 0000000..22c63b8 --- /dev/null +++ b/lib/erc721a/contracts/mocks/StartTokenIdHelper.sol @@ -0,0 +1,18 @@ +// SPDX-License-Identifier: MIT +// ERC721A Contracts v4.2.3 +// Creators: Chiru Labs + +pragma solidity ^0.8.4; + +/** + * This Helper is used to return a dynamic value in the overridden _startTokenId() function. + * Extending this Helper before the ERC721A contract give us access to the herein set `startTokenId` + * to be returned by the overridden `_startTokenId()` function of ERC721A in the ERC721AStartTokenId mocks. + */ +contract StartTokenIdHelper { + uint256 public startTokenId; + + constructor(uint256 startTokenId_) { + startTokenId = startTokenId_; + } +} diff --git a/lib/erc721a/docs/.nojekyll b/lib/erc721a/docs/.nojekyll new file mode 100644 index 0000000..e69de29 diff --git a/lib/erc721a/docs/assets/css/prism-theme.css b/lib/erc721a/docs/assets/css/prism-theme.css new file mode 100644 index 0000000..acbd231 --- /dev/null +++ b/lib/erc721a/docs/assets/css/prism-theme.css @@ -0,0 +1,147 @@ +/* Generated with http://k88hudson.github.io/syntax-highlighting-theme-generator/www */ +/* http://k88hudson.github.io/react-markdocs */ +/** + * @author k88hudson + * + * Based on prism.js default theme for JavaScript, CSS and HTML + * Based on dabblet (http://dabblet.com) + * @author Lea Verou + */ +/********************************************************* +* General +*/ +pre[class*="language-"], +code[class*="language-"] { + color: #465459; + font-size: 13px; + text-shadow: none; + font-family: Consolas, Monaco, 'Andale Mono', 'Ubuntu Mono', monospace; + direction: ltr; + text-align: left; + white-space: pre; + word-spacing: normal; + word-break: normal; + line-height: 1.5; + -moz-tab-size: 4; + -o-tab-size: 4; + tab-size: 4; + -webkit-hyphens: none; + -moz-hyphens: none; + -ms-hyphens: none; + hyphens: none; +} +pre[class*="language-"]::selection, +code[class*="language-"]::selection, +pre[class*="language-"]::mozselection, +code[class*="language-"]::mozselection { + text-shadow: none; + background: #b3d4fc; +} +@media print { + pre[class*="language-"], + code[class*="language-"] { + text-shadow: none; + } +} +pre[class*="language-"] { + padding: 1em; + margin: .5em 0; + overflow: auto; + background: #f3f2f0; +} +:not(pre) > code[class*="language-"] { + padding: .1em .3em; + border-radius: .3em; + color: #db4c69; + background: #f9f2f4; +} +/********************************************************* +* Tokens +*/ +.namespace { + opacity: .7; +} +.token.keyword, +.token.comment { + font-style: italic; +} +.token.comment, +.token.prolog, +.token.doctype, +.token.cdata { + color: #919191; +} +.token.punctuation { + color: #7f7c9c; +} +.token.property, +.token.tag, +.token.boolean, +.token.number, +.token.constant, +.token.symbol, +.token.deleted { + color: #4f8096; +} +.token.selector, +.token.attr-name, +.token.string, +.token.char, +.token.builtin, +.token.inserted { + color: #987b52; +} +.token.operator, +.token.entity, +.token.url, +.language-css .token.string, +.style .token.string { + color: #7f7c9c; + background: #f3f2f0; +} +.token.atrule, +.token.attr-value, +.token.keyword { + color: #c13441; +} +.token.function { + color: #8f5a3d; +} +.token.regex, +.token.important, +.token.variable { + color: #4f8096; +} +.token.important, +.token.bold { + font-weight: bold; +} +.token.italic { + font-style: italic; +} +.token.entity { + cursor: help; +} +/********************************************************* +* Line highlighting +*/ +pre[data-line] { + position: relative; +} +pre[class*="language-"] > code[class*="language-"] { + position: relative; + z-index: 1; +} +.line-highlight { + position: absolute; + left: 0; + right: 0; + padding: inherit 0; + margin-top: 1em; + background: #f7ebc6; + box-shadow: inset 5px 0 0 #f7d87c; + z-index: 0; + pointer-events: none; + line-height: inherit; + white-space: pre; +} diff --git a/lib/erc721a/docs/assets/fontello/LICENSE.txt b/lib/erc721a/docs/assets/fontello/LICENSE.txt new file mode 100755 index 0000000..042245e --- /dev/null +++ b/lib/erc721a/docs/assets/fontello/LICENSE.txt @@ -0,0 +1,21 @@ +Font license info + + +## Meteocons + + Copyright (C) 2012 by Alessio Atzeni + + Author: Alessio Atzeni + License: SIL (http://scripts.sil.org/OFL) + Homepage: http://www.alessioatzeni.com + + +## Font Awesome + + Copyright (C) 2016 by Dave Gandy + + Author: Dave Gandy + License: SIL () + Homepage: http://fortawesome.github.com/Font-Awesome/ + + diff --git a/lib/erc721a/docs/assets/fontello/README.txt b/lib/erc721a/docs/assets/fontello/README.txt new file mode 100755 index 0000000..d870892 --- /dev/null +++ b/lib/erc721a/docs/assets/fontello/README.txt @@ -0,0 +1,75 @@ +This webfont is generated by https://fontello.com open source project. + + +================================================================================ +Please, note, that you should obey original font licenses, used to make this +webfont pack. Details available in LICENSE.txt file. + +- Usually, it's enough to publish content of LICENSE.txt file somewhere on your + site in "About" section. + +- If your project is open-source, usually, it will be ok to make LICENSE.txt + file publicly available in your repository. + +- Fonts, used in Fontello, don't require a clickable link on your site. + But any kind of additional authors crediting is welcome. +================================================================================ + + +Comments on archive content +--------------------------- + +- /font/* - fonts in different formats + +- /css/* - different kinds of css, for all situations. Should be ok with + twitter bootstrap. Also, you can skip style and assign icon classes + directly to text elements, if you don't mind about IE7. + +- demo.html - demo file, to show your webfont content + +- LICENSE.txt - license info about source fonts, used to build your one. + +- config.json - keeps your settings. You can import it back into fontello + anytime, to continue your work + + +Why so many CSS files ? +----------------------- + +Because we like to fit all your needs :) + +- basic file, .css - is usually enough, it contains @font-face + and character code definitions + +- *-ie7.css - if you need IE7 support, but still don't wish to put char codes + directly into html + +- *-codes.css and *-ie7-codes.css - if you like to use your own @font-face + rules, but still wish to benefit from css generation. That can be very + convenient for automated asset build systems. When you need to update font - + no need to manually edit files, just override old version with archive + content. See fontello source code for examples. + +- *-embedded.css - basic css file, but with embedded WOFF font, to avoid + CORS issues in Firefox and IE9+, when fonts are hosted on the separate domain. + We strongly recommend to resolve this issue by `Access-Control-Allow-Origin` + server headers. But if you ok with dirty hack - this file is for you. 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za)>-Pj}%qIzSBzN;Ru;7{ehuwysd|&NPVq!M2iq1LIE9Arma0%rRb5R(6)i=8xw#8 zJ&R%8&7Gs?+(Mwelob`gQmGNdu7PNaEH%j@!5Qhnw0udutRhl}6bb A `Transfer` event will still be emitted for each NFT minted. + However, emitting an event is an order of magnitude cheaper than a `SSTORE` operation. + +## Lower Fees + +ERC721A defers the initialization of token ownership slots from minting to transferring. + +This allows users to batch mint with low, near-constant transaction fees, and pick a good time to transfer when the network's BASEFEE is lower. + +Although this has a higher total gas cost (minting + transfers), **it gives significantly lower overall transaction fees in practice**. + +> Transaction Fee = (BASEFEE + Max Priority Per Gas) * Gas Used + +Gas savings during high BASEFEE periods matter **more**. + +As such, ERC721A prioritizes gas savings for the minting phase. + +### Benchmark + +To illustrate, we compare OpenZeppelin's ERC721 with ERC721A. + +| | ERC721 | ERC721A | +| -------------------------- | ------------ | -------------- | +| Batch Mint 5 Tokens | 155949 gas | 63748 gas | +| Transfer 5 Tokens | 226655 gas | 334450 gas | +| Mint BASEFEE | 200 gwei | 200 gwei | +| Transfer BASEFEE | 40 gwei | 40 gwei | +| Total Transaction Fees | 0.0403 ether | 0.0261 ether | + +Even for conservatively small batch sizes (e.g. 5), we can observe decent savings over the barebones implementation. + +In practice, the Mint BASEFEE for ERC721 can be much higher. + +When consecutive blocks hit the block gas limit, [the BASEFEE increases exponentially](https://ethereum.org/en/developers/docs/gas/#base-fee). + +#### First Transfer vs Subsequent Transfers + +The main overhead of transferring a token **only occurs during its very first transfer** for an uninitialized slot. + +| | ERC721 | ERC721A | +| -------------------------- | ------------ | -------------- | +| First transfer | 45331 gas | 92822 gas | +| Subsequent transfers | 45331 gas | 44499 gas | + +Here, we bulk mint 10 tokens, and compare the transfer costs of the 5th token in the batch. + +To keep the cost of the `SSTORE` writing to the balance mapping constant, we ensure that the destination addresses have non-zero balances during all transfers. + +The first transfer with ERC721A will incur the storage overheads: + +- 2 extra `SSTORE`s (initialize current slot and next slot, both of which are empty). +- 5 extra `SLOAD`s (read previous slots and next slot). + +## Balance Mapping + +ERC721A maintains an internal mapping of address balances. This is an important and deliberate design decision: + +- The `balanceOf` function is required by the ERC721 standard. + + We understand that it is tempting to remove the mapping -- it can save a `SSTORE` during mints, and 2 `SSTORE`s during transfers. + + However, this degrades the `balanceOf` function to become O(n) in complexity -- it must bruteforce through the entire mapping of ownerships. This hampers on-chain interoperability and scalability. + +- While it is possible to emulate the `balanceOf` function by listening to emitted events, this requires users to use centralized indexing services. + + In the case of service disruption, the data can get out-of-sync and hard to reconstruct. + +- In the context of saving gas, we are able to allow whitelist minting achieve the same amount of `SSTORE`s when compared to implementations without the mapping. See `ERC721A._getAux` and `ERC721A._setAux`. + + The address balance mapping is also used to store the mint and burn counts per address with negligible overhead, which can be very useful for tokenomics. + +In all, the address balance mapping gives a good balance of features and gas savings, which makes it desirable to keep. + diff --git a/lib/erc721a/docs/erc4907a.md b/lib/erc721a/docs/erc4907a.md new file mode 100644 index 0000000..f004f75 --- /dev/null +++ b/lib/erc721a/docs/erc4907a.md @@ -0,0 +1,77 @@ +# ERC4907A + +[`erc721a/contracts/extensions/ERC4907A.sol`](https://github.com/chiru-labs/ERC721A/blob/main/contracts/extensions/ERC4907A.sol) + +[ERC4907](https://eips.ethereum.org/EIPS/eip-4907) compliant extension of ERC721A, which allows owners and authorized addresses to add a time-limited role with restricted permissions to ERC721 tokens. + +This implementation does **not** reset the user information upon token transfer. +The new owner must call [`setUser`](#setUser) to change or reset the user. + +To reset or alter the user information after each transfer, you will need to override either +[`_beforeTokenTransfers`](erc721a.md#_beforeTokenTransfers) or +[`_afterTokenTransfers`](erc721a.md#_afterTokenTransfers) in ERC721A. + +Inherits: + +- [ERC721A](erc721a.md) +- [IERC4907A](interfaces.md#ierc4907a) + + +## Functions + +### setUser + +```solidity +function setUser(uint256 tokenId, address user, uint64 expires) public virtual +``` + +Sets the `user` and `expires` for `tokenId`. + +The zero address indicates there is no user. + +Requirements: + +- The caller must own `tokenId` or be an approved operator. + + +### userOf + +```solidity +function userOf(uint256 tokenId) public view virtual returns (address) +``` + +Returns the user address for `tokenId`. + +The zero address indicates that there is no user or if the user is expired. + +### userExpires + +```solidity +function userExpires(uint256 tokenId) public view virtual returns (uint256) +``` + +Returns the user's expires of `tokenId`. + +### \_explicitUserOf + +```solidity +function _explicitUserOf(uint256 tokenId) internal view virtual returns (address) +``` + +Returns the user address for `tokenId`, ignoring the expiry status. + + +## Events + +### UpdateUser + +`IERC4907-UpdateUser` + +```solidity +event UpdateUser(uint256 indexed tokenId, address indexed user, uint64 expires) +``` + +Emitted when the `user` of an NFT or the `expires` of the `user` is changed. + +The zero address for user indicates that there is no user address. + diff --git a/lib/erc721a/docs/erc721a-burnable.md b/lib/erc721a/docs/erc721a-burnable.md new file mode 100644 index 0000000..54ca5ea --- /dev/null +++ b/lib/erc721a/docs/erc721a-burnable.md @@ -0,0 +1,25 @@ +# ERC721ABurnable + +[`erc721a/contracts/extensions/ERC721ABurnable.sol`](https://github.com/chiru-labs/ERC721A/blob/main/contracts/extensions/ERC721ABurnable.sol) + +ERC721A Token that can be irreversibly burned (destroyed). + +Inherits: + +- [ERC721A](erc721a.md) +- [IERC721ABurnable](interfaces.md#ierc721aburnable) + +## Functions + +### burn + +```solidity +function burn(uint256 tokenId) public virtual +``` + +Burns `tokenId`. See [`ERC721A._burn`](erc721a.md#_burn). + +Requirements: + +- The caller must own `tokenId` or be an approved operator. + diff --git a/lib/erc721a/docs/erc721a-queryable.md b/lib/erc721a/docs/erc721a-queryable.md new file mode 100644 index 0000000..928e765 --- /dev/null +++ b/lib/erc721a/docs/erc721a-queryable.md @@ -0,0 +1,89 @@ +# ERC721AQueryable + +[`erc721a/contracts/extensions/ERC721AQueryable.sol`](https://github.com/chiru-labs/ERC721A/blob/main/contracts/extensions/ERC721AQueryable.sol) + +ERC721A subclass with convenience query functions. + +Inherits: + +- [ERC721A](erc721a.md) +- [IERC721AQueryable](interfaces.md#ierc721aqueryable) + +## Functions + +### explicitOwnershipOf + +```solidity +function explicitOwnershipOf(uint256 tokenId) public view returns (TokenOwnership memory) +``` + +Returns the [`TokenOwnership`](erc721a.md#tokenownership) struct at `tokenId` without reverting. + +This is useful for on-chain and off-chain querying of ownership data for tokenomics. + +The returned struct will contain the following values: + +- If the `tokenId` is out of bounds: + - `addr` = `address(0)` + - `startTimestamp` = `0` + - `burned` = `false` + +- If the `tokenId` is burned: + - `addr` = `
` + - `startTimestamp` = `` + - `burned` = `true` + +- Otherwise: + - `addr` = `
` + - `startTimestamp` = `` + - `burned` = `false` + +### explicitOwnershipsOf + +```solidity +function explicitOwnershipsOf( + uint256[] memory tokenIds +) external view returns (TokenOwnership[] memory) +``` + +Returns an array of `TokenOwnership` structs at `tokenIds` in order. + +See [`explicitOwnershipOf`](#explicitOwnershipOf). + +### tokensOfOwner + +```solidity +function tokensOfOwner(address owner) external view returns (uint256[] memory) +``` + +Returns an array of token IDs owned by `owner`. + +This function scans the ownership mapping and is O(totalSupply) in complexity. +It is meant to be called off-chain. + +See [`tokensOfOwnerIn`](#tokensOfOwnerIn) for splitting the scan into +multiple smaller scans if the collection is large enough to +cause an out-of-gas error. + +This function should work fine for 10k PFP collections. + +### tokensOfOwnerIn + +```solidity +function tokensOfOwnerIn( + address owner, + uint256 start, + uint256 stop +) external view returns (uint256[] memory) +``` + +Returns an array of token IDs owned by `owner`, +in the range \[`start`, `stop`) +(i.e. `start` ≤ `tokenId` < `stop`). + +This function allows for tokens to be queried if the collection +grows too big for a single call of [`tokensOfOwner`](#tokensOfOwner). + +Requirements: + +- `start` < `stop`. \ No newline at end of file diff --git a/lib/erc721a/docs/erc721a.md b/lib/erc721a/docs/erc721a.md new file mode 100644 index 0000000..9c86045 --- /dev/null +++ b/lib/erc721a/docs/erc721a.md @@ -0,0 +1,629 @@ +# ERC721A + +[`erc721a/contracts/ERC721A.sol`](https://github.com/chiru-labs/ERC721A/blob/main/contracts/ERC721A.sol) + +Implementation of [ERC721](https://eips.ethereum.org/EIPS/eip-721) Non-Fungible Token Standard, including the Metadata extension. Built to optimize for lower gas during batch mints. + +Token IDs are minted sequentially (e.g. 0, 1, 2, 3...) starting from `_startTokenId()`. + +An owner cannot have more than `2**64 - 1` (max value of `uint64`) tokens. + +Inherits: + +- [IERC721A](interfaces.md#ierc721a) + +## Structs + +### TokenOwnership + +```solidity +struct TokenOwnership { + // The address of the owner. + address addr; + // Keeps track of the start time of ownership with minimal overhead for tokenomics. + uint64 startTimestamp; + // Whether the token has been burned. + bool burned; +} +``` + +Holds ownership data for each token. + +`startTimestamp` is the timestamp when the token is minted to, transferred to, or burned by `addr`. + + +## Functions + +### constructor + +```solidity +constructor(string memory name_, string memory symbol_) +``` + +Initializes the contract by setting a `name` and a `symbol` to the token collection. + +### supportsInterface + +`IERC165-supportsInterface` + +```solidity +function supportsInterface(bytes4 interfaceId) public view virtual returns (bool) +``` + +Returns `true` if this contract implements the interface defined by `interfaceId`. + +See the corresponding [EIP section](https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified) to learn more about how these ids are created. + +See [migration](migration.md#supportsInterface) for `supportsInterface`. + +### totalSupply + +`IERC721Enumerable-totalSupply` + +```solidity +function totalSupply() public view returns (uint256) +``` + +Returns the total number of tokens in existence. + +Burned tokens will reduce the count. + +To get the total number of tokens minted, please see [`_totalMinted`](#_totalMinted). + +### balanceOf + +`IERC721-balanceOf` + +```solidity +function balanceOf(address owner) public view override returns (uint256) +``` + +Returns the number of tokens in `owner`'s account. + +### ownerOf + +`IERC721-ownerOf` + +```solidity +function ownerOf(uint256 tokenId) public view override returns (address) +``` + +Returns the owner of the `tokenId` token. + +Requirements: + +- `tokenId` must exist. + +### name + +`IERC721Metadata-name` + +```solidity +function name() public view virtual override returns (string memory) +``` + +Returns the token collection name. + +### symbol + +`IERC721Metadata-symbol` + +```solidity +function symbol() public view virtual override returns (string memory) +``` + +Returns the token collection symbol. + +### tokenURI + +`IERC721Metadata-tokenURI` + +```solidity +function tokenURI(uint256 tokenId) public view virtual override returns (string memory) +``` + +Returns the Uniform Resource Identifier (URI) for `tokenId` token. + +See [`_baseURI`](#_baseURI) and [`_toString`](#_toString). + + +### approve + +`IERC721-approve` + +```solidity +function approve(address to, uint256 tokenId) public override +``` + +Gives permission to `to` to transfer `tokenId` token to another account. The approval is cleared when the token is transferred. + +Only a single account can be approved at a time, so approving the zero address clears previous approvals. + +Requirements: + +- The caller must own the token or be an approved operator. +- `tokenId` must exist. + +Emits an `Approval` event. + +### getApproved + +```solidity +function getApproved(uint256 tokenId) public view override returns (address) +``` + +`IERC721-getApproved` + +Returns the account approved for `tokenId` token. + +Requirements: + +- `tokenId` must exist. + +### setApprovalForAll + +`IERC721-setApprovalForAll` + +```solidity +function setApprovalForAll( + address operator, + bool approved +) public virtual override +``` + +Approve or remove `operator` as an operator for the caller. Operators can call `transferFrom` or `safeTransferFrom` for any token owned by the caller. + +Requirements: + +- The `operator` cannot be the caller. + +Emits an `ApprovalForAll` event. + +### isApprovedForAll + +`IERC721-isApprovedForAll` + +```solidity +function isApprovedForAll( + address owner, + address operator +) public view virtual override returns (bool) +``` + +Returns if the `operator` is allowed to manage all of the assets of owner. + +See [`setApprovalForAll`](#setApprovalForAll). + +### transferFrom + +`IERC721-transferFrom` + +```solidity +function transferFrom( + address from, + address to, + uint256 tokenId +) public virtual override +``` + +Transfers `tokenId` token from `from` to `to`. + +Requirements: + +- `from` cannot be the zero address. +- `to` cannot be the zero address. +- `tokenId` token must be owned by `from`. +- If the caller is not `from`, it must be approved to move this token by either `approve` or `setApprovalForAll`. + +Emits a `Transfer` event. + +### safeTransferFrom + +`IERC721-safeTransferFrom` + +```solidity +function safeTransferFrom( + address from, + address to, + uint256 tokenId, + bytes memory _data +) public virtual override +``` + +Safely transfers `tokenId` token from `from` to `to`, checking first that contract recipients are aware of the ERC721 protocol to prevent tokens from being forever locked. + +The `data` parameter is forwarded in `IERC721Receiver.onERC721Received` to contract recipients (optional, default: `""`). + +Requirements: + +- `from` cannot be the zero address. +- `to` cannot be the zero address. +- `tokenId` token must be owned by `from`. +- If the caller is not `from`, it must be approved to move this token by either `approve` or `setApprovalForAll`. +- If `to` refers to a smart contract, it must implement `IERC721Receiver.onERC721Received`, which is called upon a safe transfer. + +Emits a `Transfer` event. + + +### \_startTokenId + +```solidity +function _startTokenId() internal view virtual returns (uint256) +``` + +Returns the starting token ID (default: `0`). + +To change the starting token ID, override this function to return a different constant. + + +### \_nextTokenId + +```solidity +function _nextTokenId() internal view virtual returns (uint256) +``` + +Returns the next token ID to be minted. + + +### \_totalMinted + +```solidity +function _totalMinted() internal view returns (uint256) +``` + +Returns the total amount of tokens minted. + +### \_numberMinted + +```solidity +function _numberMinted(address owner) internal view returns (uint256) +``` + +Returns the number of tokens minted by or on behalf of `owner`. + +### \_totalBurned + +```solidity +function _totalBurned() internal view returns (uint256) +``` + +Returns the total amount of tokens burned. + + +### \_numberBurned + +```solidity +function _numberBurned(address owner) internal view returns (uint256) +``` + +Returns the number of tokens burned by or on behalf of `owner`. + +### \_getAux + +```solidity +function _getAux(address owner) internal view returns (uint64) +``` + +Returns the auxiliary data for `owner` (e.g. number of whitelist mint slots used). + +### \_setAux + +```solidity +function _setAux(address owner, uint64 aux) internal +``` + +Sets the auxiliary data for `owner` (e.g. number of whitelist mint slots used). + +If there are multiple variables, please pack them into a `uint64`. + + +### \_ownershipOf + +```solidity +function _ownershipOf(uint256 tokenId) internal view returns (TokenOwnership memory) +``` + +Returns the token ownership data for `tokenId`. See [`TokenOwnership`](#TokenOwnership). + +The gas spent here starts off proportional to the maximum mint batch size. + +It gradually moves to O(1) as tokens get transferred around in the collection over time. + + +### \_ownershipAt + +```solidity +function _ownershipAt(uint256 index) internal view returns (TokenOwnership memory) +``` + +Returns the token ownership data at the `index` slot. See [`TokenOwnership`](#TokenOwnership). + +The token ownership data may or may not be initialized. + + +### \_initializeOwnershipAt + +```solidity +function _initializeOwnershipAt(uint256 index) internal +``` + +Initializes the token ownership data at the `index` slot, if it has not been initialized. + +If the batch minted is very large, this function can be used to initialize some tokens to +reduce the first-time transfer costs. + + +### \_exists + +```solidity +function _exists(uint256 tokenId) internal view returns (bool) +``` + +Returns whether `tokenId` exists. + +Tokens can be managed by their owner or approved accounts via `approve` or `setApprovalForAll`. + +Tokens start existing when they are minted via `_mint`. + +### \_safeMint + +```solidity +function _safeMint( + address to, + uint256 quantity, + bytes memory _data +) internal +``` + +The `data` parameter is forwarded in `IERC721Receiver.onERC721Received` to contract recipients (optional, default: `""`). + +**Safe minting is reentrancy safe since V3.** + +See [`_mint`](#_mint). + +### \_mint + +```solidity +function _mint( + address to, + uint256 quantity +) internal +``` + +Mints `quantity` tokens and transfers them to `to`. + +> To prevent excessive first-time token transfer costs, please limit the `quantity` to a reasonable number (e.g. 30). +> +> Extremely large `quantity` amounts (e.g. > 5000) may result in some marketplaces and indexers to drop some `Transfer` events, +> and cause some mints to not appear. + +Requirements: + +- `to` cannot be the zero address. +- `quantity` must be greater than `0`. + +Emits a `Transfer` event. + +### \_mintERC2309 + +```solidity +function _mintERC2309( + address to, + uint256 quantity +) internal +``` + +Mints `quantity` tokens and transfers them to `to`. + +This function is intended for efficient minting **only** during contract creation. + +It emits only one `ConsecutiveTransfer` as defined in [ERC2309](https://eips.ethereum.org/EIPS/eip-2309), +instead of a sequence of `Transfer` event(s). + +Calling this function outside of contract creation **will** make your contract non-compliant with the ERC721 standard. + +For full ERC721 compliance, substituting ERC721 `Transfer` event(s) with the ERC2309 +`ConsecutiveTransfer` event is only permissible during contract creation. + +> To prevent overflows, the function limits `quantity` to a maximum of 5000. + +Requirements: + +- `to` cannot be the zero address. +- `quantity` must be greater than `0`. + +Emits a `ConsecutiveTransfer` event. + +### \_burn + +```solidity +function _burn(uint256 tokenId, bool approvalCheck) internal virtual +``` + +Destroys `tokenId`. + +The approval is cleared when the token is burned. + +Requirements: + +- `tokenId` must exist. +- If `approvalCheck` is `true`, the caller must own `tokenId` or be an approved operator. + +Emits a `Transfer` event. + + +### \_baseURI + +```solidity +function _baseURI() internal view virtual returns (string memory) +``` + +Base URI for computing `tokenURI`. + +If set, the resulting URI for each token will be the concatenation of the `baseURI` and the `tokenId`. + +Empty by default, it can be overridden in child contracts. + + +### \_beforeTokenTransfers + +```solidity +function _beforeTokenTransfers( + address from, + address to, + uint256 startTokenId, + uint256 quantity +) internal virtual +``` + +Hook that is called before a set of serially-ordered token IDs are about to be transferred. This includes minting. + +Also called before burning one token. + +`startTokenId` - the first token ID to be transferred. +`quantity` - the amount to be transferred. + +Calling conditions: + +- When `from` and `to` are both non-zero, `from`'s `tokenId` will be transferred to `to`. +- When `from` is zero, `tokenId` will be minted for `to`. +- When `to` is zero, `tokenId` will be burned by `from`. +- `from` and `to` are never both zero. + + +### \_afterTokenTransfers + +```solidity +function _afterTokenTransfers( + address from, + address to, + uint256 startTokenId, + uint256 quantity +) internal virtual +``` + +Hook that is called after a set of serially-ordered token IDs are about to be transferred. This includes minting. + +Also called after burning one token. + +`startTokenId` - the first token ID to be transferred. +`quantity` - the amount to be transferred. + +Calling conditions: + +- When `from` and `to` are both non-zero, `from`'s `tokenId` will be transferred to `to`. +- When `from` is zero, `tokenId` will be minted for `to`. +- When `to` is zero, `tokenId` will be burned by `from`. +- `from` and `to` are never both zero. + + +### \_toString + +```solidity +function _toString(uint256 value) internal pure returns (string memory) +``` + +Converts a `uint256` to its ASCII `string` decimal representation. + +This function is provided as a drop-in replacement for OpenZeppelin's `Strings.toString(uint256 value)`. + + +### \_msgSenderERC721A + +```solidity +function _msgSenderERC721A() internal view virtual returns (address) +``` + +Returns the message sender (defaults to `msg.sender`). + +If you are writing [GSN compatible contracts](https://docs.openzeppelin.com/contracts/2.x/gsn), +you need to override this function +(to return `_msgSender()` if using with OpenZeppelin). + +### \_extraData + +```solidity +function _extraData( + address from, + address to, + uint24 previousExtraData +) internal view virtual returns (uint24) +``` + +Called during each token transfer to set the 24bit `extraData` field. + +This is an advanced storage hitchhiking feature for storing token related data. + +Intended to be overridden by the deriving contract to return the value to be stored after transfer. + +`previousExtraData` - the value of `extraData` before transfer. + +Calling conditions: + +- When `from` and `to` are both non-zero, `from`'s `tokenId` will be transferred to `to`. +- When `from` is zero, `tokenId` will be minted for `to`. +- When `to` is zero, `tokenId` will be burned by `from`. +- `from` and `to` are never both zero. + +### \_setExtraDataAt + +```solidity +function _setExtraDataAt(uint256 index, uint24 extraData) internal +``` + +Directly sets the `extraData` for the ownership data at `index`. + +This is an advanced storage hitchhiking feature for storing token related data. + +Requirements: + +- The token at `index` must be initialized. + For bulk mints, `index` is the value of [`_nextTokenId`](#_nextTokenId) before bulk minting. + + +## Events + +### Transfer + +`IERC721-Transfer` + +```solidity +event Transfer(address from, address to, uint256 tokenId) +``` + +Emitted when `tokenId` token is transferred from `from` to `to`. + +### Approval + +`IERC721-Approval` + +```solidity +event Approval(address owner, address approved, uint256 tokenId) +``` + +Emitted when `owner` enables `approved` to manage the `tokenId` token. + +### ApprovalForAll + +`IERC721-ApprovalForAll` + +```solidity +event ApprovalForAll(address owner, address operator, bool approved) +``` + +Emitted when `owner` enables or disables (`approved`) `operator` to manage all of its assets. + +### ConsecutiveTransfer + +`IERC2309-ConsecutiveTransfer` + +```solidity +event ConsecutiveTransfer( + uint256 indexed fromTokenId, + uint256 toTokenId, + address indexed from, + address indexed to +) +``` + +Emitted when tokens from `fromTokenId` to `toTokenId` (inclusive) are transferred from `from` to `to`, during contract creation. diff --git a/lib/erc721a/docs/index.html b/lib/erc721a/docs/index.html new file mode 100644 index 0000000..b6c0519 --- /dev/null +++ b/lib/erc721a/docs/index.html @@ -0,0 +1,294 @@ + + + +ERC721A + + + + + + + + + + + + + + + + + + + + + + + +
+ + + + + + + + diff --git a/lib/erc721a/docs/interfaces.md b/lib/erc721a/docs/interfaces.md new file mode 100644 index 0000000..1a2db95 --- /dev/null +++ b/lib/erc721a/docs/interfaces.md @@ -0,0 +1,58 @@ +# Interfaces + +These interfaces are available as `.sol` files. These are useful to interact with third-party contracts that implement them. +Please refer to the API for any details. + +- [IERC721A](erc721a.md) +- [IERC721ABurnable](erc721a-burnable.md) +- [IERC721AQueryable](erc721a-queryable.md) + +## List of interfaces + +### IERC721A + +[`erc721a/contracts/IERC721A.sol`](https://github.com/chiru-labs/ERC721A/blob/main/contracts/IERC721A.sol) + +```solidity +import 'erc721a/contracts/interfaces/IERC721A.sol'; + +``` + +### IERC721ABurnable + +[`erc721a/contracts/extensions/IERC721ABurnable.sol`](https://github.com/chiru-labs/ERC721A/blob/main/contracts/extensions/IERC721ABurnable.sol) + +Inherits: + +- [IERC721A](#ierc721a) + +```solidity +import 'erc721a/contracts/interfaces/IERC721ABurnable.sol'; + +``` + +### IERC721AQueryable + +[`erc721a/contracts/extensions/IERC721AQueryable.sol`](https://github.com/chiru-labs/ERC721A/blob/main/contracts/extensions/IERC721AQueryable.sol) + +Inherits: + +- [IERC721A](#ierc721a) + +```solidity +import 'erc721a/contracts/interfaces/IERC721AQueryable.sol'; + +``` + +### IERC4907A + +[`erc721a/contracts/extensions/IERC4907A.sol`](https://github.com/chiru-labs/ERC721A/blob/main/contracts/extensions/IERC4907A.sol) + +Inherits: + +- [IERC721A](#ierc721a) + +```solidity +import 'erc721a/contracts/interfaces/IERC4907A.sol'; + +``` diff --git a/lib/erc721a/docs/migration.md b/lib/erc721a/docs/migration.md new file mode 100644 index 0000000..bfa7567 --- /dev/null +++ b/lib/erc721a/docs/migration.md @@ -0,0 +1,87 @@ +# Migration to 4.x + +In version 4.x, we have made the following breaking changes: + +- Removed OpenZeppelin +- Made some variables private +- Updated Upgradeable to use Diamond storage + +## API Changes + +### \_currentIndex + +The `_currentIndex` variable has been made private. + +Please use [`_nextTokenId`](erc721a.md#_nextTokenId) instead. + +If you need a `tokensOfOwner` function, please use [`ERC721AQueryable.tokensOfOwner`](erc721a-queryable.md#tokensOfOwner). + +### \_burnCounter + +The `_burnCounter` variable has been made private. + +Please use [`_totalBurned`](erc721a.md#_totalBurned) instead. + +### \_ownerships + +The `_ownerships` mapping has been made private. + +Please use the following instead: +- [`_ownershipOf`](erc721a.md#_ownershipOf) +- [`ERC721AQueryable.explicitOwnershipOf`](erc721a-queryable.md#explicitOwnershipOf) (non-reverting) +- [`ERC721AQueryable.tokensOfOwner`](erc721a-queryable.md#tokensOfOwner) +- [`_ownershipAt`](erc721a.md#_ownershipAt) + +### \_msgSender + +The dependency on OpenZeppelin `_msgSender` has been removed. + +Please use [`_msgSenderERC721A`](erc721a.md#_msgSenderERC721A) instead. + +### Strings.toString + +Due to removal of OpenZeppelin, `Strings.toString` has been removed. + +Please use [`_toString`](erc721a.md#_toString) instead. + +### supportsInterface + +Due to removal of OpenZeppelin, using `super.supportsInterface` in the function override may not work. + +When using with OpenZeppelin's libraries (e.g. [ERC2981](https://github.com/OpenZeppelin/openzeppelin-contracts/blob/master/contracts/token/common/ERC2981.sol)), you will have to do the following: + +```solidity +function supportsInterface( + bytes4 interfaceId +) public view virtual override(ERC721A, ERC2981) returns (bool) { + // Supports the following `interfaceId`s: + // - IERC165: 0x01ffc9a7 + // - IERC721: 0x80ac58cd + // - IERC721Metadata: 0x5b5e139f + // - IERC2981: 0x2a55205a + return + ERC721A.supportsInterface(interfaceId) || + ERC2981.supportsInterface(interfaceId); +} +``` + +### ERC721AOwnersExplicit + +The `ERC721AOwnersExplicit` extension has been removed. + +Please use [`_initializeOwnershipAt`](erc721a.md#_initializeOwnershipAt) instead. + +You can make your own public wrapper function to initialize the slots for any desired range in a loop. + +## Diamond Storage + +If your upgradeable contracts are deployed using version 3.x, +they will **NOT** be compatible with version 4.x. + +Using version 4.x to upgrade upgradeable contracts deployed with 3.x will lead to unintended consequences. + +You will need to either continue using 3.3.0 (the last compatible version), +or redeploy from scratch with 4.x (the redeployed contracts will not have the previous data). + +Version 4.x of ERC721A Upgradeable will be compatible with the non-diamond OpenZeppelin Upgradeable libraries. + diff --git a/lib/erc721a/docs/overview.md b/lib/erc721a/docs/overview.md new file mode 100644 index 0000000..85e2ce1 --- /dev/null +++ b/lib/erc721a/docs/overview.md @@ -0,0 +1,35 @@ +# Overview + +ERC721A is an improved implementation of the [ERC721](https://eips.ethereum.org/EIPS/eip-721) Non-Fungible Token Standard that supports minting multiple tokens for close to the cost of one. + +## Announcements + +> **📢 Version 4.x introduces several breaking changes. +> [Please refer to the migration guide for more details.](migration.md)** + +_We highly recommend reading the migration guide_, **especially** _the part on [`supportsInterface`](migration.md?id=supportsinterface) if you are using with OpenZeppelin extensions_ (e.g. ERC2981). + +## Installation + +``` +npm install --save-dev erc721a +``` + +## Usage + +Once installed, you can use the contracts in the library by importing them: + +```solidity +pragma solidity ^0.8.4; + +import "erc721a/contracts/ERC721A.sol"; + +contract Azuki is ERC721A { + constructor() ERC721A("Azuki", "AZUKI") {} + + function mint(uint256 quantity) external payable { + // `_mint`'s second argument now takes in a `quantity`, not a `tokenId`. + _mint(msg.sender, quantity); + } +} +``` diff --git a/lib/erc721a/docs/sidebar.md b/lib/erc721a/docs/sidebar.md new file mode 100644 index 0000000..1fdda07 --- /dev/null +++ b/lib/erc721a/docs/sidebar.md @@ -0,0 +1,27 @@ +- [Overview](/) +- [Design](design.md) +- [Tips](tips.md) +- [Upgradeable](upgradeable.md) +- [Migration to 4.x](migration.md) +- API + - [ERC721A](erc721a.md) + - [ERC721ABurnable](erc721a-burnable.md) + - [ERC721AQueryable](erc721a-queryable.md) + - [ERC4907A](erc4907a.md) + - [Interfaces](interfaces.md) +- **Theme** +
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diff --git a/lib/erc721a/docs/tips.md b/lib/erc721a/docs/tips.md new file mode 100644 index 0000000..e0a69a7 --- /dev/null +++ b/lib/erc721a/docs/tips.md @@ -0,0 +1,90 @@ +# Tips + +## Transfers + +For users, it is more gas optimal to transfer bulk minted tokens in ascending token ID order. + +For example, if you have bulk minted token IDs (33, 34, ..., 99), +you should transfer in the order (33, 34, ..., 99). + +This is due to how the lazy-initialization mechanism works internally: +it scans uninitialized slots in descending order until it finds an initialized slot. + +## Popularity + +The more popular your NFT collection, the larger the expected savings in transaction fees. + +See [Design: Lower Fees](design.md#lower-fees). + +## Aux + +Consider using [`ERC721A._getAux`](erc721a.md#_getAux) and +[`ERC721A._setAux`](erc721a.md#_setAux) to get / set per-address variables +(e.g. number of whitelist mints per address). + +This can help remove an extra cold `SLOAD` and `SSTORE` operation. + +## Minting + +For typical artwork collections, consider using `_mint` over `_safeMint` if you don't expect users to mint to contracts. + +## Batch Size + +During transfers, ERC721A scans through ownership storage slots until it finds an initialized slot. + +To prevent expensive first-time transfer fees for tokens minted in large batches, either: + +- Restrict the max batch size for public mints to a reasonable number. + +- Break up excessively large batches into mini batches internally when minting. + +- Use [`_initializeOwnershipAt`](erc721a.md#_initializeOwnershipAt) every couple tokens to reduce number of reads during a transfer. + +## Efficient Tokenomics + +ERC721A keeps track of additional variables in the internal mappings. + +- [`startTimestamp`](erc721a.md#_ownershipOf) (starting time of holding) per token. +- [`numberMinted`](erc721a.md#_numberMinted) per address. +- [`numberBurned`](erc721a.md#_numberBurned) per address. + +These variables hitchhike on the `SLOAD`s and `SSTORE`s at near zero additional gas cost (< 1%). + +You can use them to design tokenomics with very minimal gas overhead. + +> The [`startTimestamp`](erc721a.md#_ownershipOf), is available via the +> [`TokenOwnership`](erc721a.md#TokenOwnership) struct. +> +> You can get it from the +> [`_ownershipOf`](erc721a.md#_ownershipOf) function or the non-reverting +> [`ERC721AQueryable.explicitOwnershipOf`](erc721a-queryable.md#explicitOwnershipOf) function. + +## ERC721A vs ERC1155 + +| | ERC721A | ERC1155 | +| ---------------- | -------------- | ---------------------- | +| O(1) ownerOf | Yes | No ownerOf | +| O(1) balanceOf | For all tokens | Within fungible tokens | +| O(1)\* bulk mint | For all tokens | Within fungible tokens | +| # mint `SSTORE`s | 3 | 1 † | + +\* Approximately O(1) for ERC721A. See [Design](design.md). + +† For unique collections, ERC1155 needs a counter which needs 1 more `SSTORE`. + +ERC1155 requires centralized indexing services to emulate ERC721-like functionality off-chain. + +## Other Implementations + +ERC721A is not a one-size-fits-all solution. + +It is heavily optimized for generative artwork NFT collections. + +If your collection does not expect a busy mint phase (e.g. a pure utility NFT), +or does not require bulk minting, +these excellent implementations can be better for lowering overall transaction fees: + +- [OpenZeppelin](https://github.com/OpenZeppelin/openzeppelin-contracts) +- [Solmate](https://github.com/Rari-Capital/solmate) + +Use the right tool for the job. diff --git a/lib/erc721a/docs/upgradeable.md b/lib/erc721a/docs/upgradeable.md new file mode 100644 index 0000000..ea2ee12 --- /dev/null +++ b/lib/erc721a/docs/upgradeable.md @@ -0,0 +1,209 @@ +# Using with Upgrades + +If you are deploying upgradeable contracts, +such as using [OpenZeppelin Upgrade Plugins](https://docs.openzeppelin.com/upgrades-plugins/1.x/), +you will need to use the upgradeable variant of ERC721A. + +For more information, please refer to +[OpenZeppelin's documentation](https://docs.openzeppelin.com/contracts/4.x/upgradeable). + +Since v4, the upgradeable variant uses the Diamond storage pattern as defined in [EIP-2535](https://eips.ethereum.org/EIPS/eip-2535). + +## Installation + +``` +npm install --save-dev erc721a-upgradeable +``` + +## Usage + +The package shares the same directory layout as the main ERC721A package, but every file and contract has the suffix `Upgradeable`. + +Constructors are replaced by internal initializer functions following the naming convention `__{ContractName}__init`. + +These functions are internal, and you must define your own public initializer function that calls the parent class' initializer. + +```solidity +pragma solidity ^0.8.4; + +import 'erc721a-upgradeable/contracts/ERC721AUpgradeable.sol'; +import '@openzeppelin/contracts-upgradeable/access/OwnableUpgradeable.sol'; + +contract Something is ERC721AUpgradeable, OwnableUpgradeable { + // Take note of the initializer modifiers. + // - `initializerERC721A` for `ERC721AUpgradeable`. + // - `initializer` for OpenZeppelin's `OwnableUpgradeable`. + function initialize() initializerERC721A initializer public { + __ERC721A_init('Something', 'SMTH'); + __Ownable_init(); + } + + function mint(uint256 quantity) external payable { + // `_mint`'s second argument now takes in a `quantity`, not a `tokenId`. + _mint(msg.sender, quantity); + } + + function adminMint(uint256 quantity) external payable onlyOwner { + _mint(msg.sender, quantity); + } +} +``` + +If using with another upgradeable library, please do use their respective initializer modifier on the `initialize()` function, in addition to the `initializerERC721A` modifier. + +## Deployment + +If you are using hardhat, you can deploy it using +[OpenZeppelin Upgrade Plugins](https://docs.openzeppelin.com/upgrades-plugins/1.x/). + +``` +npm install --save-dev @openzeppelin/hardhat-upgrades +``` + +**Deploy Script** + +```javascript +// scripts/deploy.js +const { ethers, upgrades } = require('hardhat'); +const fs = require('fs'); + +async function main () { + const Something = await ethers.getContractFactory('Something'); + console.log('Deploying...'); + const something = await upgrades.deployProxy( + Something, + [], + { initializer: 'initialize' } + ); + await something.deployed(); + const addresses = { + proxy: something.address, + admin: await upgrades.erc1967.getAdminAddress(something.address), + implementation: await upgrades.erc1967.getImplementationAddress( + something.address) + }; + console.log('Addresses:', addresses); + + try { + await run('verify', { address: addresses.implementation }); + } catch (e) {} + + fs.writeFileSync('deployment-addresses.json', JSON.stringify(addresses)); +} + +main(); +``` + +**Upgrade Script** + +```javascript +// scripts/upgrade.js +const { ethers, upgrades } = require('hardhat'); +const fs = require('fs'); + +async function main () { + const Something = await ethers.getContractFactory('Something'); + console.log('Upgrading...'); + let addresses = JSON.parse(fs.readFileSync('deployment-addresses.json')); + await upgrades.upgradeProxy(addresses.proxy, Something); + console.log('Upgraded'); + + addresses = { + proxy: addresses.proxy, + admin: await upgrades.erc1967.getAdminAddress(addresses.proxy), + implementation: await upgrades.erc1967.getImplementationAddress( + addresses.proxy) + }; + console.log('Addresses:', addresses); + + try { + await run('verify', { address: addresses.implementation }); + } catch (e) {} + + fs.writeFileSync('deployment-addresses.json', JSON.stringify(addresses)); +} + +main(); +``` + +### Local + +Add the following to your `hardhat.config.js`: + +```javascript +// hardhat.config.js +require("@nomiclabs/hardhat-waffle"); +require('@openzeppelin/hardhat-upgrades'); + +module.exports = { + solidity: "0.8.11" +}; +``` + +**Deploy** + +``` +npx hardhat run --network localhost scripts/deploy.js +``` + +**Upgrade** + +``` +npx hardhat run --network localhost scripts/upgrade.js +``` + +### Testnet / Mainnet + +We will use the Goerli testnet as an example. + +Install the following packages if they are not already installed: + +``` +npm install --save-dev @nomiclabs/hardhat-etherscan +npm install --save-dev dotenv +``` + +Add the following to your environment file `.env`: + +``` +ETHERSCAN_KEY="Your Etherscan API Key" +PRIVATE_KEY="Your Wallet Private Key" +RPC_URL_GOERLI="https://Infura Or Alchemy URL With API Key" +``` + +Add the following to your `hardhat.config.js`: + +```javascript +// hardhat.config.js +require("@nomiclabs/hardhat-waffle"); +require('dotenv').config(); +require('@openzeppelin/hardhat-upgrades'); +require("@nomiclabs/hardhat-etherscan"); + +module.exports = { + solidity: "0.8.11", + networks: { + goerli: { + url: process.env.RPC_URL_GOERLI, + accounts: [process.env.PRIVATE_KEY] + } + }, + etherscan: { + // Your API key for Etherscan + // Obtain one at https://etherscan.io/ + apiKey: process.env.ETHERSCAN_KEY + } +}; +``` + +**Deploy** + +``` +npx hardhat run --network goerli scripts/deploy.js +``` + +**Upgrade** + +``` +npx hardhat run --network goerli scripts/upgrade.js +``` diff --git a/lib/erc721a/hardhat.config.js b/lib/erc721a/hardhat.config.js new file mode 100644 index 0000000..5a01817 --- /dev/null +++ b/lib/erc721a/hardhat.config.js @@ -0,0 +1,45 @@ +require('@nomiclabs/hardhat-waffle'); +require('@nomiclabs/hardhat-ethers'); + +if (process.env.REPORT_GAS) { + require('hardhat-gas-reporter'); +} + +if (process.env.REPORT_COVERAGE) { + require('solidity-coverage'); +} + +/** + * @type import('hardhat/config').HardhatUserConfig + */ +module.exports = { + solidity: { + version: '0.8.11', + settings: { + optimizer: { + enabled: true, + runs: 800, + }, + }, + }, + gasReporter: { + currency: 'USD', + gasPrice: 100, + showTimeSpent: true, + }, + plugins: ['solidity-coverage'], +}; + +// The "ripemd160" algorithm is not available anymore in NodeJS 17+ (because of lib SSL 3). +// The following code replaces it with "sha256" instead. + +const crypto = require('crypto'); + +try { + crypto.createHash('ripemd160'); +} catch (e) { + const origCreateHash = crypto.createHash; + crypto.createHash = (alg, opts) => { + return origCreateHash(alg === 'ripemd160' ? 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"devDependencies": { + "@nomiclabs/hardhat-ethers": "^2.0.4", + "@nomiclabs/hardhat-waffle": "^2.0.1", + "@openzeppelin/test-helpers": "^0.5.15", + "chai": "^4.3.4", + "eslint": "^8.7.0", + "eslint-plugin-mocha": "^10.0.3", + "eslint-plugin-node": "^11.1.0", + "ethereum-waffle": "^3.4.0", + "ethers": "^5.5.3", + "hardhat": "^2.8.2", + "hardhat-gas-reporter": "^1.0.7", + "prettier": "^2.5.1", + "prettier-plugin-solidity": "^1.0.0-beta.19", + "solidity-coverage": "^0.7.20" + }, + "repository": { + "type": "git", + "url": "git+https://github.com/chiru-labs/ERC721A.git" + }, + "author": "chiru-labs", + "license": "ISC", + "bugs": { + "url": "https://github.com/chiru-labs/ERC721A/issues" + }, + "homepage": "https://github.com/chiru-labs/ERC721A#readme" +} \ No newline at end of file diff --git a/lib/erc721a/scripts/release/update-version.js b/lib/erc721a/scripts/release/update-version.js new file mode 100755 index 0000000..b538ebb --- /dev/null +++ b/lib/erc721a/scripts/release/update-version.js @@ -0,0 +1,45 @@ +#!/usr/bin/env node +const fs = require('fs'); +const glob = require('glob'); + +// read version from input arg +const version = process.argv[2]; +// abort if no version is given +if (!version) { + console.error('No version specified'); + process.exit(1); +} + +// update package.json version +const packageJson = JSON.parse(fs.readFileSync('package.json', 'utf8')); +packageJson.version = version; +fs.writeFileSync('package.json', JSON.stringify(packageJson, null, 2)); + +// update package-lock.json version +const packageLockJson = JSON.parse(fs.readFileSync('package-lock.json', 'utf8')); +packageLockJson.version = version; +packageLockJson.packages[""].version = version; +fs.writeFileSync('package-lock.json', JSON.stringify(packageLockJson, null, 2)); + +const spdxString = '// SPDX-License-Identifier: MIT'; +const versionPrefix = '// ERC721A Contracts v'; + +// loop through all files with contracts/**/*.sol pattern +glob('contracts/**/*.sol', null, function (err, files) { + files.forEach((file) => { + // read file content + const content = fs.readFileSync(file, 'utf8'); + + const versionStringLine = versionPrefix + version; + + let updatedContent; + if (content.includes(versionPrefix)) { + updatedContent = content.replace(new RegExp(`${versionPrefix}.*`), `${versionStringLine}`); + } else { + updatedContent = content.replace(new RegExp(`${spdxString}`), `${spdxString}\n${versionStringLine}`); + } + + // write updated file + fs.writeFileSync(file, updatedContent); + }); +}); diff --git a/lib/erc721a/test/ERC721A.test.js b/lib/erc721a/test/ERC721A.test.js new file mode 100644 index 0000000..43e1cdc --- /dev/null +++ b/lib/erc721a/test/ERC721A.test.js @@ -0,0 +1,766 @@ +const { deployContract, getBlockTimestamp, mineBlockTimestamp, offsettedIndex } = require('./helpers.js'); +const { expect } = require('chai'); +const { BigNumber } = require('ethers'); +const { constants } = require('@openzeppelin/test-helpers'); +const { ZERO_ADDRESS } = constants; + +const RECEIVER_MAGIC_VALUE = '0x150b7a02'; +const GAS_MAGIC_VALUE = 20000; + +const createTestSuite = ({ contract, constructorArgs }) => + function () { + let offsetted; + + context(`${contract}`, function () { + beforeEach(async function () { + this.erc721a = await deployContract(contract, constructorArgs); + this.receiver = await deployContract('ERC721ReceiverMock', [RECEIVER_MAGIC_VALUE, this.erc721a.address]); + this.startTokenId = this.erc721a.startTokenId ? (await this.erc721a.startTokenId()).toNumber() : 0; + + offsetted = (...arr) => offsettedIndex(this.startTokenId, arr); + }); + + describe('EIP-165 support', async function () { + it('supports ERC165', async function () { + expect(await this.erc721a.supportsInterface('0x01ffc9a7')).to.eq(true); + }); + + it('supports IERC721', async function () { + expect(await this.erc721a.supportsInterface('0x80ac58cd')).to.eq(true); + }); + + it('supports ERC721Metadata', async function () { + expect(await this.erc721a.supportsInterface('0x5b5e139f')).to.eq(true); + }); + + it('does not support ERC721Enumerable', async function () { + expect(await this.erc721a.supportsInterface('0x780e9d63')).to.eq(false); + }); + + it('does not support random interface', async function () { + expect(await this.erc721a.supportsInterface('0x00000042')).to.eq(false); + }); + }); + + describe('ERC721Metadata support', async function () { + it('name', async function () { + expect(await this.erc721a.name()).to.eq(constructorArgs[0]); + }); + + it('symbol', async function () { + expect(await this.erc721a.symbol()).to.eq(constructorArgs[1]); + }); + + describe('baseURI', async function () { + it('sends an empty URI by default', async function () { + expect(await this.erc721a.baseURI()).to.eq(''); + }); + }); + }); + + context('with no minted tokens', async function () { + it('has 0 totalSupply', async function () { + const supply = await this.erc721a.totalSupply(); + expect(supply).to.equal(0); + }); + + it('has 0 totalMinted', async function () { + const totalMinted = await this.erc721a.totalMinted(); + expect(totalMinted).to.equal(0); + }); + + it('has 0 totalBurned', async function () { + const totalBurned = await this.erc721a.totalBurned(); + expect(totalBurned).to.equal(0); + }); + + it('_nextTokenId must be equal to _startTokenId', async function () { + const nextTokenId = await this.erc721a.nextTokenId(); + expect(nextTokenId).to.equal(offsetted(0)); + }); + }); + + context('with minted tokens', async function () { + beforeEach(async function () { + const [owner, addr1, addr2, addr3, addr4] = await ethers.getSigners(); + this.owner = owner; + this.addr1 = addr1; + this.addr2 = addr2; + this.addr3 = addr3; + this.addr4 = addr4; + this.expectedMintCount = 6; + + this.addr1.expected = { + mintCount: 1, + tokens: [offsetted(0)], + }; + + this.addr2.expected = { + mintCount: 2, + tokens: offsetted(1, 2), + }; + + this.addr3.expected = { + mintCount: 3, + tokens: offsetted(3, 4, 5), + }; + + await this.erc721a['safeMint(address,uint256)'](addr1.address, this.addr1.expected.mintCount); + await this.erc721a['safeMint(address,uint256)'](addr2.address, this.addr2.expected.mintCount); + await this.erc721a['safeMint(address,uint256)'](addr3.address, this.addr3.expected.mintCount); + }); + + describe('tokenURI (ERC721Metadata)', async function () { + describe('tokenURI', async function () { + it('sends an empty uri by default', async function () { + expect(await this.erc721a.tokenURI(offsetted(0))).to.eq(''); + }); + + it('reverts when tokenId does not exist', async function () { + await expect(this.erc721a.tokenURI(offsetted(this.expectedMintCount))).to.be.revertedWith( + 'URIQueryForNonexistentToken' + ); + }); + }); + }); + + describe('exists', async function () { + it('verifies valid tokens', async function () { + for (let tokenId = offsetted(0); tokenId < offsetted(this.expectedMintCount); tokenId++) { + const exists = await this.erc721a.exists(tokenId); + expect(exists).to.be.true; + } + }); + + it('verifies invalid tokens', async function () { + expect(await this.erc721a.exists(offsetted(this.expectedMintCount))).to.be.false; + }); + }); + + describe('balanceOf', async function () { + it('returns the amount for a given address', async function () { + expect(await this.erc721a.balanceOf(this.owner.address)).to.equal('0'); + expect(await this.erc721a.balanceOf(this.addr1.address)).to.equal(this.addr1.expected.mintCount); + expect(await this.erc721a.balanceOf(this.addr2.address)).to.equal(this.addr2.expected.mintCount); + expect(await this.erc721a.balanceOf(this.addr3.address)).to.equal(this.addr3.expected.mintCount); + }); + + it('returns correct amount with transferred tokens', async function () { + const tokenIdToTransfer = this.addr2.expected.tokens[0]; + await this.erc721a + .connect(this.addr2) + .transferFrom(this.addr2.address, this.addr3.address, tokenIdToTransfer); + // sanity check + expect(await this.erc721a.ownerOf(tokenIdToTransfer)).to.equal(this.addr3.address); + + expect(await this.erc721a.balanceOf(this.addr2.address)).to.equal(this.addr2.expected.mintCount - 1); + expect(await this.erc721a.balanceOf(this.addr3.address)).to.equal(this.addr3.expected.mintCount + 1); + }); + + it('throws an exception for the 0 address', async function () { + await expect(this.erc721a.balanceOf(ZERO_ADDRESS)).to.be.revertedWith('BalanceQueryForZeroAddress'); + }); + }); + + describe('_numberMinted', async function () { + it('returns the amount for a given address', async function () { + expect(await this.erc721a.numberMinted(this.owner.address)).to.equal('0'); + expect(await this.erc721a.numberMinted(this.addr1.address)).to.equal(this.addr1.expected.mintCount); + expect(await this.erc721a.numberMinted(this.addr2.address)).to.equal(this.addr2.expected.mintCount); + expect(await this.erc721a.numberMinted(this.addr3.address)).to.equal(this.addr3.expected.mintCount); + }); + + it('returns the same amount with transferred token', async function () { + const tokenIdToTransfer = this.addr2.expected.tokens[0]; + await this.erc721a + .connect(this.addr2) + .transferFrom(this.addr2.address, this.addr3.address, tokenIdToTransfer); + // sanity check + expect(await this.erc721a.ownerOf(tokenIdToTransfer)).to.equal(this.addr3.address); + + expect(await this.erc721a.numberMinted(this.addr2.address)).to.equal(this.addr2.expected.mintCount); + expect(await this.erc721a.numberMinted(this.addr3.address)).to.equal(this.addr3.expected.mintCount); + }); + }); + + context('_totalMinted', async function () { + it('has correct totalMinted', async function () { + const totalMinted = await this.erc721a.totalMinted(); + expect(totalMinted).to.equal(this.expectedMintCount); + }); + }); + + context('_nextTokenId', async function () { + it('has correct nextTokenId', async function () { + const nextTokenId = await this.erc721a.nextTokenId(); + expect(nextTokenId).to.equal(offsetted(this.expectedMintCount)); + }); + }); + + describe('aux', async function () { + it('get and set works correctly', async function () { + const uint64Max = BigNumber.from(2).pow(64).sub(1).toString(); + expect(await this.erc721a.getAux(this.owner.address)).to.equal('0'); + await this.erc721a.setAux(this.owner.address, uint64Max); + expect(await this.erc721a.getAux(this.owner.address)).to.equal(uint64Max); + + expect(await this.erc721a.getAux(this.addr1.address)).to.equal('0'); + await this.erc721a.setAux(this.addr1.address, '1'); + expect(await this.erc721a.getAux(this.addr1.address)).to.equal('1'); + + await this.erc721a.setAux(this.addr3.address, '5'); + expect(await this.erc721a.getAux(this.addr3.address)).to.equal('5'); + + expect(await this.erc721a.getAux(this.addr1.address)).to.equal('1'); + }); + }); + + describe('ownerOf', async function () { + it('returns the right owner', async function () { + for (const minter of [this.addr1, this.addr2, this.addr3]) { + for (const tokenId of minter.expected.tokens) { + expect(await this.erc721a.ownerOf(tokenId)).to.equal(minter.address); + } + } + }); + + it('reverts for an invalid token', async function () { + await expect(this.erc721a.ownerOf(10)).to.be.revertedWith('OwnerQueryForNonexistentToken'); + + if (this.startTokenId > 0) { + await expect(this.erc721a.ownerOf(0)).to.be.revertedWith('OwnerQueryForNonexistentToken'); + } + }); + }); + + describe('approve', async function () { + beforeEach(function () { + this.tokenId = this.addr1.expected.tokens[0]; + this.tokenId2 = this.addr2.expected.tokens[0]; + }); + + it('sets approval for the target address', async function () { + await this.erc721a.connect(this.addr1).approve(this.addr2.address, this.tokenId); + const approval = await this.erc721a.getApproved(this.tokenId); + expect(approval).to.equal(this.addr2.address); + }); + + it('set approval for the target address on behalf of the owner', async function () { + await this.erc721a.connect(this.addr1).setApprovalForAll(this.addr2.address, true); + await this.erc721a.connect(this.addr2).approve(this.addr3.address, this.tokenId); + const approval = await this.erc721a.getApproved(this.tokenId); + expect(approval).to.equal(this.addr3.address); + }); + + it('rejects an unapproved caller', async function () { + await expect(this.erc721a.approve(this.addr2.address, this.tokenId)).to.be.revertedWith( + 'ApprovalCallerNotOwnerNorApproved' + ); + }); + + it('does not get approved for invalid tokens', async function () { + await expect(this.erc721a.getApproved(10)).to.be.revertedWith('ApprovalQueryForNonexistentToken'); + }); + + it('approval allows token transfer', async function () { + await expect( + this.erc721a.connect(this.addr3).transferFrom(this.addr1.address, this.addr3.address, this.tokenId) + ).to.be.revertedWith('TransferCallerNotOwnerNorApproved'); + await this.erc721a.connect(this.addr1).approve(this.addr3.address, this.tokenId); + await this.erc721a.connect(this.addr3).transferFrom(this.addr1.address, this.addr3.address, this.tokenId); + await expect( + this.erc721a.connect(this.addr1).transferFrom(this.addr3.address, this.addr1.address, this.tokenId) + ).to.be.revertedWith('TransferCallerNotOwnerNorApproved'); + }); + + it('token owner can approve self as operator', async function () { + expect(await this.erc721a.getApproved(this.tokenId)).to.not.equal(this.addr1.address); + await expect(this.erc721a.connect(this.addr1).approve(this.addr1.address, this.tokenId) + ).to.not.be.reverted; + expect(await this.erc721a.getApproved(this.tokenId)).to.equal(this.addr1.address); + }); + + it('self-approval is cleared on token transfer', async function () { + await this.erc721a.connect(this.addr1).approve(this.addr1.address, this.tokenId); + expect(await this.erc721a.getApproved(this.tokenId)).to.equal(this.addr1.address); + + await this.erc721a.connect(this.addr1).transferFrom(this.addr1.address, this.addr2.address, this.tokenId); + expect(await this.erc721a.getApproved(this.tokenId)).to.not.equal(this.addr1.address); + }); + + it('direct approve works', async function () { + expect(await this.erc721a.getApproved(this.tokenId)).to.not.equal(this.addr1.address); + await this.erc721a.connect(this.addr2).directApprove(this.addr1.address, this.tokenId); + expect(await this.erc721a.getApproved(this.tokenId)).to.equal(this.addr1.address); + }); + }); + + describe('setApprovalForAll', async function () { + it('sets approval for all properly', async function () { + const approvalTx = await this.erc721a.setApprovalForAll(this.addr1.address, true); + await expect(approvalTx) + .to.emit(this.erc721a, 'ApprovalForAll') + .withArgs(this.owner.address, this.addr1.address, true); + expect(await this.erc721a.isApprovedForAll(this.owner.address, this.addr1.address)).to.be.true; + }); + + it('caller can approve all with self as operator', async function () { + expect( + await this.erc721a.connect(this.addr1).isApprovedForAll(this.addr1.address, this.addr1.address) + ).to.be.false; + await expect( + this.erc721a.connect(this.addr1).setApprovalForAll(this.addr1.address, true) + ).to.not.be.reverted; + expect( + await this.erc721a.connect(this.addr1).isApprovedForAll(this.addr1.address, this.addr1.address) + ).to.be.true; + }); + }); + + context('test transfer functionality', function () { + const testSuccessfulTransfer = function (transferFn, transferToContract = true) { + beforeEach(async function () { + const sender = this.addr2; + this.tokenId = this.addr2.expected.tokens[0]; + this.from = sender.address; + this.to = transferToContract ? this.receiver : this.addr4; + await this.erc721a.connect(sender).approve(this.to.address, this.tokenId); + + const ownershipBefore = await this.erc721a.getOwnershipAt(this.tokenId); + this.timestampBefore = parseInt(ownershipBefore.startTimestamp); + this.timestampToMine = (await getBlockTimestamp()) + 12345; + await mineBlockTimestamp(this.timestampToMine); + this.timestampMined = await getBlockTimestamp(); + + // prettier-ignore + this.transferTx = await this.erc721a + .connect(sender)[transferFn](this.from, this.to.address, this.tokenId); + + const ownershipAfter = await this.erc721a.getOwnershipAt(this.tokenId); + this.timestampAfter = parseInt(ownershipAfter.startTimestamp); + }); + + it('transfers the ownership of the given token ID to the given address', async function () { + expect(await this.erc721a.ownerOf(this.tokenId)).to.be.equal(this.to.address); + }); + + it('emits a Transfer event', async function () { + await expect(this.transferTx) + .to.emit(this.erc721a, 'Transfer') + .withArgs(this.from, this.to.address, this.tokenId); + }); + + it('clears the approval for the token ID', async function () { + expect(await this.erc721a.getApproved(this.tokenId)).to.be.equal(ZERO_ADDRESS); + }); + + it('adjusts owners balances', async function () { + expect(await this.erc721a.balanceOf(this.from)).to.be.equal(1); + }); + + it('startTimestamp updated correctly', async function () { + expect(this.timestampBefore).to.be.lt(this.timestampToMine); + expect(this.timestampAfter).to.be.gte(this.timestampToMine); + expect(this.timestampAfter).to.be.lt(this.timestampToMine + 10); + expect(this.timestampToMine).to.be.eq(this.timestampMined); + }); + }; + + const testUnsuccessfulTransfer = function (transferFn) { + beforeEach(function () { + this.tokenId = this.addr2.expected.tokens[0]; + this.sender = this.addr1; + }); + + it('rejects unapproved transfer', async function () { + await expect( + this.erc721a.connect(this.sender)[transferFn](this.addr2.address, this.sender.address, this.tokenId) + ).to.be.revertedWith('TransferCallerNotOwnerNorApproved'); + }); + + it('rejects transfer from incorrect owner', async function () { + await this.erc721a.connect(this.addr2).setApprovalForAll(this.sender.address, true); + await expect( + this.erc721a.connect(this.sender)[transferFn](this.addr3.address, this.sender.address, this.tokenId) + ).to.be.revertedWith('TransferFromIncorrectOwner'); + }); + + it('rejects transfer to zero address', async function () { + await this.erc721a.connect(this.addr2).setApprovalForAll(this.sender.address, true); + await expect( + this.erc721a.connect(this.sender)[transferFn](this.addr2.address, ZERO_ADDRESS, this.tokenId) + ).to.be.revertedWith('TransferToZeroAddress'); + }); + }; + + context('successful transfers', function () { + context('transferFrom', function () { + describe('to contract', function () { + testSuccessfulTransfer('transferFrom'); + }); + + describe('to EOA', function () { + testSuccessfulTransfer('transferFrom', false); + }); + }); + + context('safeTransferFrom', function () { + describe('to contract', function () { + testSuccessfulTransfer('safeTransferFrom(address,address,uint256)'); + + it('validates ERC721Received', async function () { + await expect(this.transferTx) + .to.emit(this.receiver, 'Received') + .withArgs(this.addr2.address, this.addr2.address, this.tokenId, '0x', GAS_MAGIC_VALUE); + }); + }); + + describe('to EOA', function () { + testSuccessfulTransfer('safeTransferFrom(address,address,uint256)', false); + }); + }); + }); + + context('unsuccessful transfers', function () { + describe('transferFrom', function () { + testUnsuccessfulTransfer('transferFrom'); + }); + + describe('safeTransferFrom', function () { + testUnsuccessfulTransfer('safeTransferFrom(address,address,uint256)'); + + it('reverts for non-receivers', async function () { + const nonReceiver = this.erc721a; + // prettier-ignore + await expect( + this.erc721a.connect(this.addr1)['safeTransferFrom(address,address,uint256)']( + this.addr1.address, + nonReceiver.address, + offsetted(0) + ) + ).to.be.revertedWith('TransferToNonERC721ReceiverImplementer'); + }); + + it('reverts when the receiver reverted', async function () { + // prettier-ignore + await expect( + this.erc721a.connect(this.addr1)['safeTransferFrom(address,address,uint256,bytes)']( + this.addr1.address, + this.receiver.address, + offsetted(0), + '0x01' + ) + ).to.be.revertedWith('reverted in the receiver contract!'); + }); + + it('reverts if the receiver returns the wrong value', async function () { + // prettier-ignore + await expect( + this.erc721a.connect(this.addr1)['safeTransferFrom(address,address,uint256,bytes)']( + this.addr1.address, + this.receiver.address, + offsetted(0), + '0x02' + ) + ).to.be.revertedWith('TransferToNonERC721ReceiverImplementer'); + }); + }); + }); + }); + + describe('_burn', async function () { + beforeEach(function () { + this.tokenIdToBurn = offsetted(0); + }); + + it('can burn if approvalCheck is false', async function () { + expect(await this.erc721a.exists(this.tokenIdToBurn)).to.be.true; + await this.erc721a.connect(this.addr2)['burn(uint256,bool)'](this.tokenIdToBurn, false); + expect(await this.erc721a.exists(this.tokenIdToBurn)).to.be.false; + }); + + it('revert if approvalCheck is true', async function () { + await expect( + this.erc721a.connect(this.addr2)['burn(uint256,bool)'](this.tokenIdToBurn, true) + ).to.be.revertedWith('TransferCallerNotOwnerNorApproved'); + }); + + it('can burn without approvalCheck parameter', async function () { + expect(await this.erc721a.exists(this.tokenIdToBurn)).to.be.true; + await this.erc721a.connect(this.addr2)['burn(uint256)'](this.tokenIdToBurn); + expect(await this.erc721a.exists(this.tokenIdToBurn)).to.be.false; + }); + + it('cannot burn a token owned by another if not approved', async function () { + expect(await this.erc721a.exists(this.tokenIdToBurn)).to.be.true; + await this.erc721a.connect(this.addr2)['burn(uint256)'](this.tokenIdToBurn); + expect(await this.erc721a.exists(this.tokenIdToBurn)).to.be.false; + }); + }); + + describe('_initializeOwnershipAt', async function () { + it('successfuly sets ownership of empty slot', async function () { + const lastTokenId = this.addr3.expected.tokens[2]; + const ownership1 = await this.erc721a.getOwnershipAt(lastTokenId); + expect(ownership1[0]).to.equal(ZERO_ADDRESS); + await this.erc721a.initializeOwnershipAt(lastTokenId); + const ownership2 = await this.erc721a.getOwnershipAt(lastTokenId); + expect(ownership2[0]).to.equal(this.addr3.address); + }); + + it("doesn't set ownership if it's already setted", async function () { + const lastTokenId = this.addr3.expected.tokens[2]; + expect(await this.erc721a.ownerOf(lastTokenId)).to.be.equal(this.addr3.address); + const tx1 = await this.erc721a.initializeOwnershipAt(lastTokenId); + expect(await this.erc721a.ownerOf(lastTokenId)).to.be.equal(this.addr3.address); + const tx2 = await this.erc721a.initializeOwnershipAt(lastTokenId); + + // We assume the 2nd initialization doesn't set again due to less gas used. + const receipt1 = await tx1.wait(); + const receipt2 = await tx2.wait(); + expect(receipt2.gasUsed.toNumber()).to.be.lessThan(receipt1.gasUsed.toNumber()); + }); + }); + }); + + context('test mint functionality', function () { + beforeEach(async function () { + const [owner, addr1] = await ethers.getSigners(); + this.owner = owner; + this.addr1 = addr1; + }); + + const testSuccessfulMint = function (safe, quantity, mintForContract = true) { + beforeEach(async function () { + this.minter = mintForContract ? this.receiver : this.addr1; + + const mintFn = safe ? 'safeMint(address,uint256)' : 'mint(address,uint256)'; + + this.balanceBefore = (await this.erc721a.balanceOf(this.minter.address)).toNumber(); + + this.timestampToMine = (await getBlockTimestamp()) + 12345; + await mineBlockTimestamp(this.timestampToMine); + this.timestampMined = await getBlockTimestamp(); + + this.mintTx = await this.erc721a[mintFn](this.minter.address, quantity); + }); + + it('changes ownership', async function () { + for (let tokenId = offsetted(0); tokenId < offsetted(quantity); tokenId++) { + expect(await this.erc721a.ownerOf(tokenId)).to.equal(this.minter.address); + } + }); + + it('emits a Transfer event', async function () { + for (let tokenId = offsetted(0); tokenId < offsetted(quantity); tokenId++) { + await expect(this.mintTx) + .to.emit(this.erc721a, 'Transfer') + .withArgs(ZERO_ADDRESS, this.minter.address, tokenId); + } + }); + + it('adjusts owners balances', async function () { + expect(await this.erc721a.balanceOf(this.minter.address)).to.be.equal(this.balanceBefore + quantity); + }); + + it('adjusts OwnershipAt and OwnershipOf', async function () { + const ownership = await this.erc721a.getOwnershipAt(offsetted(0)); + expect(ownership.startTimestamp).to.be.gte(this.timestampToMine); + expect(ownership.startTimestamp).to.be.lt(this.timestampToMine + 10); + expect(ownership.burned).to.be.false; + + for (let tokenId = offsetted(0); tokenId < offsetted(quantity); tokenId++) { + const ownership = await this.erc721a.getOwnershipOf(tokenId); + expect(ownership.addr).to.equal(this.minter.address); + expect(ownership.startTimestamp).to.be.gte(this.timestampToMine); + expect(ownership.startTimestamp).to.be.lt(this.timestampToMine + 10); + expect(ownership.burned).to.be.false; + } + + expect(this.timestampToMine).to.be.eq(this.timestampMined); + }); + + if (safe && mintForContract) { + it('validates ERC721Received', async function () { + for (let tokenId = offsetted(0); tokenId < offsetted(quantity); tokenId++) { + await expect(this.mintTx) + .to.emit(this.minter, 'Received') + .withArgs(this.owner.address, ZERO_ADDRESS, tokenId, '0x', GAS_MAGIC_VALUE); + } + }); + } + }; + + const testUnsuccessfulMint = function (safe) { + beforeEach(async function () { + this.mintFn = safe ? 'safeMint(address,uint256)' : 'mint(address,uint256)'; + }); + + it('rejects mints to the zero address', async function () { + await expect(this.erc721a[this.mintFn](ZERO_ADDRESS, 1)).to.be.revertedWith('MintToZeroAddress'); + }); + + it('requires quantity to be greater than 0', async function () { + await expect(this.erc721a[this.mintFn](this.owner.address, 0)).to.be.revertedWith('MintZeroQuantity'); + }); + }; + + context('successful mints', function () { + context('mint', function () { + context('for contract', function () { + describe('single token', function () { + testSuccessfulMint(false, 1); + }); + + describe('multiple tokens', function () { + testSuccessfulMint(false, 5); + }); + + it('does not revert for non-receivers', async function () { + const nonReceiver = this.erc721a; + await this.erc721a.mint(nonReceiver.address, 1); + expect(await this.erc721a.ownerOf(offsetted(0))).to.equal(nonReceiver.address); + }); + }); + + context('for EOA', function () { + describe('single token', function () { + testSuccessfulMint(false, 1, false); + }); + + describe('multiple tokens', function () { + testSuccessfulMint(false, 5, false); + }); + }); + }); + + context('safeMint', function () { + context('for contract', function () { + describe('single token', function () { + testSuccessfulMint(true, 1); + }); + + describe('multiple tokens', function () { + testSuccessfulMint(true, 5); + }); + + it('validates ERC721Received with custom _data', async function () { + const customData = ethers.utils.formatBytes32String('custom data'); + const tx = await this.erc721a['safeMint(address,uint256,bytes)'](this.receiver.address, 1, customData); + await expect(tx) + .to.emit(this.receiver, 'Received') + .withArgs(this.owner.address, ZERO_ADDRESS, offsetted(0), customData, GAS_MAGIC_VALUE); + }); + }); + + context('for EOA', function () { + describe('single token', function () { + testSuccessfulMint(true, 1, false); + }); + + describe('multiple tokens', function () { + testSuccessfulMint(true, 5, false); + }); + }); + }); + }); + + context('unsuccessful mints', function () { + context('mint', function () { + testUnsuccessfulMint(false); + }); + + context('safeMint', function () { + testUnsuccessfulMint(true); + + it('reverts for non-receivers', async function () { + const nonReceiver = this.erc721a; + await expect(this.erc721a['safeMint(address,uint256)'](nonReceiver.address, 1)).to.be.revertedWith( + 'TransferToNonERC721ReceiverImplementer' + ); + }); + + it('reverts when the receiver reverted', async function () { + await expect( + this.erc721a['safeMint(address,uint256,bytes)'](this.receiver.address, 1, '0x01') + ).to.be.revertedWith('reverted in the receiver contract!'); + }); + + it('reverts if the receiver returns the wrong value', async function () { + await expect( + this.erc721a['safeMint(address,uint256,bytes)'](this.receiver.address, 1, '0x02') + ).to.be.revertedWith('TransferToNonERC721ReceiverImplementer'); + }); + + it('reverts with reentrant call', async function () { + await expect( + this.erc721a['safeMint(address,uint256,bytes)'](this.receiver.address, 1, '0x03') + ).to.be.reverted; + }); + }); + }); + }); + + context('_toString', async function () { + it('returns correct value', async function () { + expect(await this.erc721a['toString(uint256)']('0')).to.eq('0'); + expect(await this.erc721a['toString(uint256)']('1')).to.eq('1'); + expect(await this.erc721a['toString(uint256)']('2')).to.eq('2'); + const uint256Max = BigNumber.from(2).pow(256).sub(1).toString(); + expect(await this.erc721a['toString(uint256)'](uint256Max)).to.eq(uint256Max); + }); + }); + }); + }; + +describe('ERC721A', createTestSuite({ contract: 'ERC721AMock', constructorArgs: ['Azuki', 'AZUKI'] })); + +describe( + 'ERC721A override _startTokenId()', + createTestSuite({ contract: 'ERC721AStartTokenIdMock', constructorArgs: ['Azuki', 'AZUKI', 1] }) +); + +describe('ERC721A with ERC2309', async function () { + beforeEach(async function () { + const [owner, addr1] = await ethers.getSigners(); + this.owner = owner; + this.addr1 = addr1; + + let args; + args = ['Azuki', 'AZUKI', this.owner.address, 1, true]; + this.erc721aMint1 = await deployContract('ERC721AWithERC2309Mock', args); + args = ['Azuki', 'AZUKI', this.owner.address, 10, true]; + this.erc721aMint10 = await deployContract('ERC721AWithERC2309Mock', args); + }); + + it('emits a ConsecutiveTransfer event for single mint', async function () { + expect(this.erc721aMint1.deployTransaction) + .to.emit(this.erc721aMint1, 'ConsecutiveTransfer') + .withArgs(0, 0, ZERO_ADDRESS, this.owner.address); + }); + + it('emits a ConsecutiveTransfer event for a batch mint', async function () { + expect(this.erc721aMint10.deployTransaction) + .to.emit(this.erc721aMint10, 'ConsecutiveTransfer') + .withArgs(0, 9, ZERO_ADDRESS, this.owner.address); + }); + + it('requires quantity to be below mint limit', async function () { + let args; + const mintLimit = 5000; + args = ['Azuki', 'AZUKI', this.owner.address, mintLimit, true]; + await deployContract('ERC721AWithERC2309Mock', args); + args = ['Azuki', 'AZUKI', this.owner.address, mintLimit + 1, true]; + await expect(deployContract('ERC721AWithERC2309Mock', args)).to.be.revertedWith('MintERC2309QuantityExceedsLimit'); + }) + + it('rejects mints to the zero address', async function () { + let args = ['Azuki', 'AZUKI', ZERO_ADDRESS, 1, true]; + await expect(deployContract('ERC721AWithERC2309Mock', args)).to.be.revertedWith('MintToZeroAddress'); + }); + + it('requires quantity to be greater than 0', async function () { + let args = ['Azuki', 'AZUKI', this.owner.address, 0, true]; + await expect(deployContract('ERC721AWithERC2309Mock', args)).to.be.revertedWith('MintZeroQuantity'); + }); +}); diff --git a/lib/erc721a/test/GasUsage.test.js b/lib/erc721a/test/GasUsage.test.js new file mode 100644 index 0000000..380ff95 --- /dev/null +++ b/lib/erc721a/test/GasUsage.test.js @@ -0,0 +1,93 @@ +const { deployContract } = require('./helpers.js'); + +describe('ERC721A Gas Usage', function () { + beforeEach(async function () { + this.erc721a = await deployContract('ERC721AGasReporterMock', ['Azuki', 'AZUKI']); + const [owner, addr1] = await ethers.getSigners(); + this.owner = owner; + this.addr1 = addr1; + }); + + context('mintOne', function () { + it('runs mintOne 2 times', async function () { + for (let i = 0; i < 2; i++) { + await this.erc721a.mintOne(this.addr1.address); + } + }); + }); + + context('safeMintOne', function () { + it('runs safeMintOne 2 times', async function () { + for (let i = 0; i < 2; i++) { + await this.erc721a.safeMintOne(this.addr1.address); + } + }); + }); + + context('mintTen', function () { + it('runs mintTen 2 times', async function () { + for (let i = 0; i < 2; i++) { + await this.erc721a.mintTen(this.addr1.address); + } + }); + }); + + context('safeMintTen', function () { + it('runs safeMintTen 2 times', async function () { + for (let i = 0; i < 2; i++) { + await this.erc721a.safeMintTen(this.addr1.address); + } + }); + }); + + context('transferFrom', function () { + beforeEach(async function () { + await this.erc721a.mintTen(this.owner.address); + await this.erc721a.mintOne(this.owner.address); + + await this.erc721a.mintTen(this.addr1.address); + await this.erc721a.mintOne(this.addr1.address); + }); + + it('transfer to and from two addresses', async function () { + for (let i = 0; i < 2; ++i) { + await this.erc721a.connect(this.owner).transferFrom(this.owner.address, this.addr1.address, 1); + await this.erc721a.connect(this.addr1).transferFrom(this.addr1.address, this.owner.address, 1); + } + }); + + it('transferTen ascending order', async function () { + await this.erc721a.connect(this.owner).transferTenAsc(this.addr1.address); + }); + + it('transferTen descending order', async function () { + await this.erc721a.connect(this.owner).transferTenDesc(this.addr1.address); + }); + + it('transferTen average order', async function () { + await this.erc721a.connect(this.owner).transferTenAvg(this.addr1.address); + }); + }); + + it('mintOneERC2309', async function () { + // The following call `_mintERC3201` outside of contract creation. + // This is non-compliant with the ERC721 standard, + // and is only meant for gas comparisons. + let args = ['Azuki', 'AZUKI', this.owner.address, 0, false]; + let contract = await deployContract('ERC721AWithERC2309Mock', args); + await contract.mintOneERC2309(this.owner.address); + await contract.mintOneERC2309(this.owner.address); + await contract.mintOneERC2309(this.addr1.address); + }); + + it('mintTenERC2309', async function () { + // The following call `_mintERC3201` outside of contract creation. + // This is non-compliant with the ERC721 standard, + // and is only meant for gas comparisons. + let args = ['Azuki', 'AZUKI', this.owner.address, 0, false]; + let contract = await deployContract('ERC721AWithERC2309Mock', args); + await contract.mintTenERC2309(this.owner.address); + await contract.mintTenERC2309(this.owner.address); + await contract.mintTenERC2309(this.addr1.address); + }); +}); diff --git a/lib/erc721a/test/extensions/ERC4907A.test.js b/lib/erc721a/test/extensions/ERC4907A.test.js new file mode 100644 index 0000000..f200427 --- /dev/null +++ b/lib/erc721a/test/extensions/ERC4907A.test.js @@ -0,0 +1,155 @@ +const { deployContract, getBlockTimestamp, mineBlockTimestamp } = require('../helpers.js'); +const { expect } = require('chai'); +const { constants } = require('@openzeppelin/test-helpers'); +const { ZERO_ADDRESS } = constants; + +const createTestSuite = ({ contract, constructorArgs }) => + function () { + context(`${contract}`, function () { + beforeEach(async function () { + this.erc4097a = await deployContract(contract, constructorArgs); + }); + + describe('EIP-165 support', async function () { + it('supports ERC165', async function () { + expect(await this.erc4097a.supportsInterface('0x01ffc9a7')).to.eq(true); + }); + + it('supports IERC721', async function () { + expect(await this.erc4097a.supportsInterface('0x80ac58cd')).to.eq(true); + }); + + it('supports ERC721Metadata', async function () { + expect(await this.erc4097a.supportsInterface('0x5b5e139f')).to.eq(true); + }); + + it('supports ERC4907', async function () { + expect(await this.erc4097a.supportsInterface('0xad092b5c')).to.eq(true); + }); + + it('does not support random interface', async function () { + expect(await this.erc4097a.supportsInterface('0x00000042')).to.eq(false); + }); + }); + + context('with minted tokens', async function () { + beforeEach(async function () { + const [owner, addr1] = await ethers.getSigners(); + this.owner = owner; + this.addr1 = addr1; + + await this.erc4097a['mint(address,uint256)'](this.owner.address, 1); + await this.erc4097a['mint(address,uint256)'](this.addr1.address, 2); + + this.expires = (await getBlockTimestamp()) + 123; + this.tokenId = 2; + this.user = this.owner; + }); + + it('explicitUserOf returns zero address after minting', async function () { + expect(await this.erc4097a.explicitUserOf(0)).to.equal(ZERO_ADDRESS); + expect(await this.erc4097a.explicitUserOf(1)).to.equal(ZERO_ADDRESS); + expect(await this.erc4097a.explicitUserOf(2)).to.equal(ZERO_ADDRESS); + }); + + it('userOf returns zero address after minting', async function () { + expect(await this.erc4097a.userOf(0)).to.equal(ZERO_ADDRESS); + expect(await this.erc4097a.userOf(1)).to.equal(ZERO_ADDRESS); + expect(await this.erc4097a.userOf(2)).to.equal(ZERO_ADDRESS); + }); + + it('userExpires returns zero timestamp after minting', async function () { + expect(await this.erc4097a.userExpires(0)).to.equal(0); + expect(await this.erc4097a.userExpires(1)).to.equal(0); + expect(await this.erc4097a.userExpires(2)).to.equal(0); + }); + + describe('setUser', async function () { + beforeEach(async function () { + this.setUser = async () => await this.erc4097a.connect(this.addr1) + .setUser(this.tokenId, this.user.address, this.expires); + + this.setupAuthTest = async () => { + this.tokenId = 0; + await expect(this.setUser()).to.be.revertedWith('SetUserCallerNotOwnerNorApproved'); + }; + }); + + it('correctly changes the return value of explicitUserOf', async function () { + await this.setUser(); + expect(await this.erc4097a.explicitUserOf(this.tokenId)).to.equal(this.user.address); + }); + + it('correctly changes the return value of userOf', async function () { + await this.setUser(); + expect(await this.erc4097a.userOf(this.tokenId)).to.equal(this.user.address); + }); + + it('correctly changes the return value of expires', async function () { + await this.setUser(); + expect(await this.erc4097a.userExpires(this.tokenId)).to.equal(this.expires); + }); + + it('emits the UpdateUser event properly', async function () { + await expect(await this.setUser()) + .to.emit(this.erc4097a, 'UpdateUser') + .withArgs(this.tokenId, this.user.address, this.expires); + }); + + it('reverts for an invalid token', async function () { + this.tokenId = 123; + await expect(this.setUser()).to.be.revertedWith('OwnerQueryForNonexistentToken'); + }); + + it('requires token ownership', async function () { + await this.setupAuthTest(); + await this.erc4097a.transferFrom(this.owner.address, this.addr1.address, this.tokenId); + await this.setUser(); + }); + + it('requires token approval', async function () { + await this.setupAuthTest(); + await this.erc4097a.approve(this.addr1.address, this.tokenId); + await this.setUser(); + }); + + it('requires operator approval', async function () { + await this.setupAuthTest(); + await this.erc4097a.setApprovalForAll(this.addr1.address, 1); + await this.setUser(); + }); + }); + + describe('after expiry', async function () { + beforeEach(async function () { + await this.erc4097a.connect(this.addr1) + .setUser(this.tokenId, this.user.address, this.expires); + }); + + it('userOf returns zero address after expires', async function () { + expect(await this.erc4097a.userOf(this.tokenId)).to.equal(this.user.address); + await mineBlockTimestamp(this.expires); + expect(await this.erc4097a.userOf(this.tokenId)).to.equal(this.user.address); + await mineBlockTimestamp(this.expires + 1); + expect(await this.erc4097a.userOf(this.tokenId)).to.equal(ZERO_ADDRESS); + }); + + it('explicitUserOf returns correct address after expiry', async function () { + expect(await this.erc4097a.explicitUserOf(this.tokenId)).to.equal(this.user.address); + await mineBlockTimestamp(this.expires); + expect(await this.erc4097a.explicitUserOf(this.tokenId)).to.equal(this.user.address); + await mineBlockTimestamp(this.expires + 1); + expect(await this.erc4097a.explicitUserOf(this.tokenId)).to.equal(this.user.address); + }); + }); + }); + }); + }; + +describe( + 'ERC4907A', + createTestSuite({ + contract: 'ERC4907AMock', + constructorArgs: ['Azuki', 'AZUKI'], + }) +); diff --git a/lib/erc721a/test/extensions/ERC721ABurnable.test.js b/lib/erc721a/test/extensions/ERC721ABurnable.test.js new file mode 100644 index 0000000..41c11db --- /dev/null +++ b/lib/erc721a/test/extensions/ERC721ABurnable.test.js @@ -0,0 +1,209 @@ +const { deployContract, getBlockTimestamp, mineBlockTimestamp, offsettedIndex } = require('../helpers.js'); +const { expect } = require('chai'); +const { constants } = require('@openzeppelin/test-helpers'); +const { ZERO_ADDRESS } = constants; + +const createTestSuite = ({ contract, constructorArgs }) => + function () { + let offsetted; + + context(`${contract}`, function () { + beforeEach(async function () { + this.erc721aBurnable = await deployContract(contract, constructorArgs); + + this.startTokenId = this.erc721aBurnable.startTokenId + ? (await this.erc721aBurnable.startTokenId()).toNumber() + : 0; + + offsetted = (...arr) => offsettedIndex(this.startTokenId, arr); + }); + + beforeEach(async function () { + const [owner, addr1, addr2, spender] = await ethers.getSigners(); + this.owner = owner; + this.addr1 = addr1; + this.addr2 = addr2; + this.spender = spender; + this.numTestTokens = 10; + this.burnedTokenId = 5; + this.notBurnedTokenId = 6; + await this.erc721aBurnable['safeMint(address,uint256)'](this.addr1.address, this.numTestTokens); + await this.erc721aBurnable.connect(this.addr1).burn(this.burnedTokenId); + }); + + context('totalSupply()', function () { + it('has the expected value', async function () { + expect(await this.erc721aBurnable.totalSupply()).to.equal(9); + }); + + it('is reduced by burns', async function () { + const supplyBefore = await this.erc721aBurnable.totalSupply(); + + for (let i = 0; i < offsetted(2); ++i) { + await this.erc721aBurnable.connect(this.addr1).burn(offsetted(i)); + + const supplyNow = await this.erc721aBurnable.totalSupply(); + expect(supplyNow).to.equal(supplyBefore - (i + 1)); + } + }); + }); + + it('changes numberBurned', async function () { + expect(await this.erc721aBurnable.numberBurned(this.addr1.address)).to.equal(1); + await this.erc721aBurnable.connect(this.addr1).burn(offsetted(0)); + expect(await this.erc721aBurnable.numberBurned(this.addr1.address)).to.equal(2); + }); + + it('changes totalBurned', async function () { + const totalBurnedBefore = (await this.erc721aBurnable.totalBurned()).toNumber(); + expect(totalBurnedBefore).to.equal(1); + + for (let i = 0; i < offsetted(2); ++i) { + await this.erc721aBurnable.connect(this.addr1).burn(offsetted(i)); + + const totalBurnedNow = (await this.erc721aBurnable.totalBurned()).toNumber(); + expect(totalBurnedNow).to.equal(totalBurnedBefore + (i + 1)); + } + }); + + it('changes exists', async function () { + expect(await this.erc721aBurnable.exists(this.burnedTokenId)).to.be.false; + expect(await this.erc721aBurnable.exists(this.notBurnedTokenId)).to.be.true; + }); + + it('cannot burn a non-existing token', async function () { + const query = this.erc721aBurnable.connect(this.addr1).burn(offsetted(this.numTestTokens)); + await expect(query).to.be.revertedWith('OwnerQueryForNonexistentToken'); + }); + + it('cannot burn a burned token', async function () { + const query = this.erc721aBurnable.connect(this.addr1).burn(this.burnedTokenId); + await expect(query).to.be.revertedWith('OwnerQueryForNonexistentToken'); + }); + + it('cannot burn with wrong caller or spender', async function () { + const tokenIdToBurn = this.notBurnedTokenId; + + // sanity check + await this.erc721aBurnable.connect(this.addr1).approve(ZERO_ADDRESS, tokenIdToBurn); + await this.erc721aBurnable.connect(this.addr1).setApprovalForAll(this.spender.address, false); + + const query = this.erc721aBurnable.connect(this.spender).burn(tokenIdToBurn); + await expect(query).to.be.revertedWith('TransferCallerNotOwnerNorApproved'); + }); + + it('spender can burn with specific approved tokenId', async function () { + const tokenIdToBurn = this.notBurnedTokenId; + + await this.erc721aBurnable.connect(this.addr1).approve(this.spender.address, tokenIdToBurn); + await this.erc721aBurnable.connect(this.spender).burn(tokenIdToBurn); + expect(await this.erc721aBurnable.exists(tokenIdToBurn)).to.be.false; + }); + + it('spender can burn with one-time approval', async function () { + const tokenIdToBurn = this.notBurnedTokenId; + + await this.erc721aBurnable.connect(this.addr1).setApprovalForAll(this.spender.address, true); + await this.erc721aBurnable.connect(this.spender).burn(tokenIdToBurn); + expect(await this.erc721aBurnable.exists(tokenIdToBurn)).to.be.false; + }); + + it('cannot transfer a burned token', async function () { + const query = this.erc721aBurnable + .connect(this.addr1) + .transferFrom(this.addr1.address, this.addr2.address, this.burnedTokenId); + await expect(query).to.be.revertedWith('OwnerQueryForNonexistentToken'); + }); + + it('does not affect _totalMinted', async function () { + const totalMintedBefore = await this.erc721aBurnable.totalMinted(); + expect(totalMintedBefore).to.equal(this.numTestTokens); + for (let i = 0; i < 2; ++i) { + await this.erc721aBurnable.connect(this.addr1).burn(offsetted(i)); + } + expect(await this.erc721aBurnable.totalMinted()).to.equal(totalMintedBefore); + }); + + it('adjusts owners balances', async function () { + expect(await this.erc721aBurnable.balanceOf(this.addr1.address)).to.be.equal(this.numTestTokens - 1); + }); + + it('startTimestamp updated correctly', async function () { + const tokenIdToBurn = this.burnedTokenId + 1; + const ownershipBefore = await this.erc721aBurnable.getOwnershipAt(tokenIdToBurn); + const timestampBefore = parseInt(ownershipBefore.startTimestamp); + const timestampToMine = (await getBlockTimestamp()) + 12345; + await mineBlockTimestamp(timestampToMine); + const timestampMined = await getBlockTimestamp(); + await this.erc721aBurnable.connect(this.addr1).burn(tokenIdToBurn); + const ownershipAfter = await this.erc721aBurnable.getOwnershipAt(tokenIdToBurn); + const timestampAfter = parseInt(ownershipAfter.startTimestamp); + expect(timestampBefore).to.be.lt(timestampToMine); + expect(timestampAfter).to.be.gte(timestampToMine); + expect(timestampAfter).to.be.lt(timestampToMine + 10); + expect(timestampToMine).to.be.eq(timestampMined); + }); + + describe('ownerships correctly set', async function () { + it('with token before previously burnt token transferred and burned', async function () { + const tokenIdToBurn = this.burnedTokenId - 1; + await this.erc721aBurnable + .connect(this.addr1) + .transferFrom(this.addr1.address, this.addr2.address, tokenIdToBurn); + expect(await this.erc721aBurnable.ownerOf(tokenIdToBurn)).to.be.equal(this.addr2.address); + await this.erc721aBurnable.connect(this.addr2).burn(tokenIdToBurn); + for (let i = offsetted(0); i < offsetted(this.numTestTokens); ++i) { + if (i == tokenIdToBurn || i == this.burnedTokenId) { + await expect(this.erc721aBurnable.ownerOf(i)).to.be.revertedWith('OwnerQueryForNonexistentToken'); + } else { + expect(await this.erc721aBurnable.ownerOf(i)).to.be.equal(this.addr1.address); + } + } + }); + + it('with token after previously burnt token transferred and burned', async function () { + const tokenIdToBurn = this.burnedTokenId + 1; + await this.erc721aBurnable + .connect(this.addr1) + .transferFrom(this.addr1.address, this.addr2.address, tokenIdToBurn); + expect(await this.erc721aBurnable.ownerOf(tokenIdToBurn)).to.be.equal(this.addr2.address); + await this.erc721aBurnable.connect(this.addr2).burn(tokenIdToBurn); + for (let i = offsetted(0); i < offsetted(this.numTestTokens); ++i) { + if (i == tokenIdToBurn || i == this.burnedTokenId) { + await expect(this.erc721aBurnable.ownerOf(i)).to.be.revertedWith('OwnerQueryForNonexistentToken'); + } else { + expect(await this.erc721aBurnable.ownerOf(i)).to.be.equal(this.addr1.address); + } + } + }); + + it('with first token burned', async function () { + await this.erc721aBurnable.connect(this.addr1).burn(offsetted(0)); + for (let i = offsetted(0); i < offsetted(this.numTestTokens); ++i) { + if (i == offsetted(0).toNumber() || i == this.burnedTokenId) { + await expect(this.erc721aBurnable.ownerOf(i)).to.be.revertedWith('OwnerQueryForNonexistentToken'); + } else { + expect(await this.erc721aBurnable.ownerOf(i)).to.be.equal(this.addr1.address); + } + } + }); + + it('with last token burned', async function () { + await expect(this.erc721aBurnable.ownerOf(offsetted(this.numTestTokens))).to.be.revertedWith( + 'OwnerQueryForNonexistentToken' + ); + await this.erc721aBurnable.connect(this.addr1).burn(offsetted(this.numTestTokens - 1)); + await expect(this.erc721aBurnable.ownerOf(offsetted(this.numTestTokens - 1))).to.be.revertedWith( + 'OwnerQueryForNonexistentToken' + ); + }); + }); + }); + }; + +describe('ERC721ABurnable', createTestSuite({ contract: 'ERC721ABurnableMock', constructorArgs: ['Azuki', 'AZUKI'] })); + +describe( + 'ERC721ABurnable override _startTokenId()', + createTestSuite({ contract: 'ERC721ABurnableStartTokenIdMock', constructorArgs: ['Azuki', 'AZUKI', 1] }) +); diff --git a/lib/erc721a/test/extensions/ERC721AQueryable.test.js b/lib/erc721a/test/extensions/ERC721AQueryable.test.js new file mode 100644 index 0000000..b5b9a39 --- /dev/null +++ b/lib/erc721a/test/extensions/ERC721AQueryable.test.js @@ -0,0 +1,310 @@ +const { deployContract, offsettedIndex } = require('../helpers.js'); +const { expect } = require('chai'); +const { BigNumber } = require('ethers'); +const { constants } = require('@openzeppelin/test-helpers'); +const { ZERO_ADDRESS } = constants; + +const createTestSuite = ({ contract, constructorArgs }) => + function () { + let offsetted; + + context(`${contract}`, function () { + beforeEach(async function () { + this.erc721aQueryable = await deployContract(contract, constructorArgs); + + this.startTokenId = this.erc721aQueryable.startTokenId + ? (await this.erc721aQueryable.startTokenId()).toNumber() + : 0; + + offsetted = (...arr) => offsettedIndex(this.startTokenId, arr); + }); + + const expectExplicitOwnershipBurned = function (explicitOwnership, address) { + expect(explicitOwnership.burned).to.eql(true); + expect(explicitOwnership.addr).to.eql(address); + expect(explicitOwnership.startTimestamp).to.not.eql(BigNumber.from(0)); + expect(explicitOwnership.extraData).to.equal(BigNumber.from(0)); + }; + + const expectExplicitOwnershipNotExists = function (explicitOwnership) { + expect(explicitOwnership.burned).to.eql(false); + expect(explicitOwnership.addr).to.eql(ZERO_ADDRESS); + expect(explicitOwnership.startTimestamp).to.eql(BigNumber.from(0)); + expect(explicitOwnership.extraData).to.equal(BigNumber.from(0)); + }; + + const expectExplicitOwnershipExists = function (explicitOwnership, address) { + expect(explicitOwnership.burned).to.eql(false); + expect(explicitOwnership.addr).to.eql(address); + expect(explicitOwnership.startTimestamp).to.not.eql(BigNumber.from(0)); + expect(explicitOwnership.extraData).to.equal(BigNumber.from(0)); + }; + + context('with no minted tokens', async function () { + beforeEach(async function () { + const [owner, addr1] = await ethers.getSigners(); + this.owner = owner; + this.addr1 = addr1; + }); + + describe('tokensOfOwner', async function () { + it('returns empty array', async function () { + expect(await this.erc721aQueryable.tokensOfOwner(this.owner.address)).to.eql([]); + expect(await this.erc721aQueryable.tokensOfOwner(this.addr1.address)).to.eql([]); + }); + }); + + describe('tokensOfOwnerIn', async function () { + it('returns empty array', async function () { + expect(await this.erc721aQueryable.tokensOfOwnerIn(this.owner.address, 0, 9)).to.eql([]); + expect(await this.erc721aQueryable.tokensOfOwnerIn(this.addr1.address, 0, 9)).to.eql([]); + }); + }); + + describe('explicitOwnershipOf', async function () { + it('returns empty struct', async function () { + expectExplicitOwnershipNotExists(await this.erc721aQueryable.explicitOwnershipOf(0)); + expectExplicitOwnershipNotExists(await this.erc721aQueryable.explicitOwnershipOf(1)); + }); + }); + + describe('explicitOwnershipsOf', async function () { + it('returns empty structs', async function () { + const tokenIds = [0, 1, 2, 3]; + const explicitOwnerships = await this.erc721aQueryable.explicitOwnershipsOf(tokenIds); + for (let i = 0; i < explicitOwnerships.length; ++i) { + expectExplicitOwnershipNotExists(explicitOwnerships[i]); + } + }); + }); + }); + + context('with minted tokens', async function () { + beforeEach(async function () { + const [owner, addr1, addr2, addr3, addr4] = await ethers.getSigners(); + this.owner = owner; + this.addr1 = addr1; + this.addr2 = addr2; + this.addr3 = addr3; + this.addr4 = addr4; + + this.addr1.expected = { + balance: 1, + tokens: [offsetted(0)], + }; + + this.addr2.expected = { + balance: 2, + tokens: offsetted(1, 2), + }; + + this.addr3.expected = { + balance: 3, + tokens: offsetted(3, 4, 5), + }; + + this.addr4.expected = { + balance: 0, + tokens: [], + }; + + this.owner.expected = { + balance: 3, + tokens: offsetted(6, 7, 8), + }; + + this.lastTokenId = offsetted(8); + this.currentIndex = this.lastTokenId.add(1); + + this.mintOrder = [this.addr1, this.addr2, this.addr3, this.addr4, owner]; + + for (const minter of this.mintOrder) { + const balance = minter.expected.balance; + if (balance > 0) { + await this.erc721aQueryable['safeMint(address,uint256)'](minter.address, balance); + } + // sanity check + expect(await this.erc721aQueryable.balanceOf(minter.address)).to.equal(minter.expected.balance); + } + }); + + describe('tokensOfOwner', async function () { + it('initial', async function () { + for (const minter of this.mintOrder) { + const tokens = await this.erc721aQueryable.tokensOfOwner(minter.address); + expect(tokens).to.eql(minter.expected.tokens); + } + }); + + it('after a transfer', async function () { + // Break sequential order by transfering 7th token from owner to addr4 + const tokenIdToTransfer = [offsetted(7)]; + await this.erc721aQueryable.transferFrom(this.owner.address, this.addr4.address, tokenIdToTransfer[0]); + + // Load balances + const ownerTokens = await this.erc721aQueryable.tokensOfOwner(this.owner.address); + const addr4Tokens = await this.erc721aQueryable.tokensOfOwner(this.addr4.address); + + // Verify the function can still read the correct token ids + expect(ownerTokens).to.eql(offsetted(6, 8)); + expect(addr4Tokens).to.eql(tokenIdToTransfer); + }); + + it('after a burn', async function () { + // Burn tokens + const tokenIdToBurn = [offsetted(7)]; + await this.erc721aQueryable.burn(tokenIdToBurn[0]); + + // Load balances + const ownerTokens = await this.erc721aQueryable.tokensOfOwner(this.owner.address); + + // Verify the function can still read the correct token ids + expect(ownerTokens).to.eql(offsetted(6, 8)); + }); + }); + + describe('tokensOfOwnerIn', async function () { + const expectCorrect = async function (addr, start, stop) { + if (BigNumber.from(start).gte(BigNumber.from(stop))) { + await expect(this.erc721aQueryable.tokensOfOwnerIn(addr, start, stop)).to.be.revertedWith( + 'InvalidQueryRange' + ); + } else { + const expectedTokens = (await this.erc721aQueryable.tokensOfOwner(addr)).filter( + (x) => BigNumber.from(start).lte(x) && BigNumber.from(stop).gt(x) + ); + const tokens = await this.erc721aQueryable.tokensOfOwnerIn(addr, start, stop); + expect(tokens).to.eql(expectedTokens); + } + }; + + const subTests = function (description, beforeEachFunction) { + describe(description, async function () { + it('all token ids', async function () { + await beforeEachFunction.call(this); + await expectCorrect.call(this, this.owner.address, offsetted(0), this.currentIndex); + await expectCorrect.call(this, this.owner.address, offsetted(0), this.currentIndex.add(1)); + }); + + it('partial token ids', async function () { + await beforeEachFunction.call(this); + const ownerTokens = this.owner.expected.tokens; + const start = ownerTokens[0]; + const stop = ownerTokens[ownerTokens.length - 1] + 1; + for (let o = 1; o <= ownerTokens.length; ++o) { + // Start truncated. + await expectCorrect.call(this, this.owner.address, start + o, stop); + // End truncated. + await expectCorrect.call(this, this.owner.address, start, stop - o); + // Start and end truncated. This also tests for start + o >= stop - o. + await expectCorrect.call(this, this.owner.address, start + o, stop - o); + } + for (let l = 0; l < ownerTokens.length; ++l) { + for (let o = 0, n = parseInt(this.currentIndex) + 1; o <= n; ++o) { + // Sliding window. + await expectCorrect.call(this, this.owner.address, o, o + l); + } + } + }); + }); + }; + + subTests('initial', async function () {}); + + subTests('after a token tranfer', async function () { + await this.erc721aQueryable.transferFrom(this.owner.address, this.addr4.address, offsetted(7)); + }); + + subTests('after a token burn', async function () { + await this.erc721aQueryable.burn(offsetted(7)); + }); + }); + + describe('explicitOwnershipOf', async function () { + it('token exists', async function () { + const tokenId = this.owner.expected.tokens[0]; + const explicitOwnership = await this.erc721aQueryable.explicitOwnershipOf(tokenId); + expectExplicitOwnershipExists(explicitOwnership, this.owner.address); + }); + + it('after a token burn', async function () { + const tokenId = this.owner.expected.tokens[0]; + await this.erc721aQueryable.burn(tokenId); + const explicitOwnership = await this.erc721aQueryable.explicitOwnershipOf(tokenId); + expectExplicitOwnershipBurned(explicitOwnership, this.owner.address); + }); + + it('after a token transfer', async function () { + const tokenId = this.owner.expected.tokens[0]; + await this.erc721aQueryable.transferFrom(this.owner.address, this.addr4.address, tokenId); + const explicitOwnership = await this.erc721aQueryable.explicitOwnershipOf(tokenId); + expectExplicitOwnershipExists(explicitOwnership, this.addr4.address); + }); + + it('out of bounds', async function () { + const explicitOwnership = await this.erc721aQueryable.explicitOwnershipOf(this.currentIndex); + expectExplicitOwnershipNotExists(explicitOwnership); + }); + }); + + describe('explicitOwnershipsOf', async function () { + it('tokens exist', async function () { + const tokenIds = [].concat(this.owner.expected.tokens, this.addr3.expected.tokens); + const explicitOwnerships = await this.erc721aQueryable.explicitOwnershipsOf(tokenIds); + for (let i = 0; i < tokenIds.length; ++i) { + const owner = await this.erc721aQueryable.ownerOf(tokenIds[i]); + expectExplicitOwnershipExists(explicitOwnerships[i], owner); + } + }); + + it('after a token burn', async function () { + const tokenIds = [].concat(this.owner.expected.tokens, this.addr3.expected.tokens); + await this.erc721aQueryable.burn(tokenIds[0]); + const explicitOwnerships = await this.erc721aQueryable.explicitOwnershipsOf(tokenIds); + expectExplicitOwnershipBurned(explicitOwnerships[0], this.owner.address); + for (let i = 1; i < tokenIds.length; ++i) { + const owner = await this.erc721aQueryable.ownerOf(tokenIds[i]); + expectExplicitOwnershipExists(explicitOwnerships[i], owner); + } + }); + + it('after a token transfer', async function () { + const tokenIds = [].concat(this.owner.expected.tokens, this.addr3.expected.tokens); + await this.erc721aQueryable.transferFrom(this.owner.address, this.addr4.address, tokenIds[0]); + const explicitOwnerships = await this.erc721aQueryable.explicitOwnershipsOf(tokenIds); + expectExplicitOwnershipExists(explicitOwnerships[0], this.addr4.address); + for (let i = 1; i < tokenIds.length; ++i) { + const owner = await this.erc721aQueryable.ownerOf(tokenIds[i]); + expectExplicitOwnershipExists(explicitOwnerships[i], owner); + } + }); + + it('out of bounds', async function () { + const tokenIds = [].concat([this.currentIndex], this.addr3.expected.tokens); + const explicitOwnerships = await this.erc721aQueryable.explicitOwnershipsOf(tokenIds); + expectExplicitOwnershipNotExists(explicitOwnerships[0]); + for (let i = 1; i < tokenIds.length; ++i) { + const owner = await this.erc721aQueryable.ownerOf(tokenIds[i]); + expectExplicitOwnershipExists(explicitOwnerships[i], owner); + } + }); + }); + }); + }); + }; + +describe( + 'ERC721AQueryable', + createTestSuite({ + contract: 'ERC721AQueryableMock', + constructorArgs: ['Azuki', 'AZUKI'], + }) +); + +describe( + 'ERC721AQueryable override _startTokenId()', + createTestSuite({ + contract: 'ERC721AQueryableStartTokenIdMock', + constructorArgs: ['Azuki', 'AZUKI', 1], + }) +); diff --git a/lib/erc721a/test/extensions/ERC721ATransferCounter.test.js b/lib/erc721a/test/extensions/ERC721ATransferCounter.test.js new file mode 100644 index 0000000..5f21205 --- /dev/null +++ b/lib/erc721a/test/extensions/ERC721ATransferCounter.test.js @@ -0,0 +1,108 @@ +const { deployContract } = require('../helpers.js'); +const { expect } = require('chai'); + +const createTestSuite = ({ contract, constructorArgs }) => + function () { + context(`${contract}`, function () { + beforeEach(async function () { + this.erc721aCounter = await deployContract(contract, constructorArgs); + }); + + context('with minted tokens', async function () { + beforeEach(async function () { + const [owner, addr1] = await ethers.getSigners(); + this.owner = owner; + this.addr1 = addr1; + + this.addr1.expected = { + balance: 1, + tokens: [0], + }; + + this.owner.expected = { + balance: 2, + tokens: [1, 2], + }; + + this.mintOrder = [this.addr1, this.owner]; + + for (const minter of this.mintOrder) { + const balance = minter.expected.balance; + if (balance > 0) { + await this.erc721aCounter['safeMint(address,uint256)'](minter.address, balance); + } + // sanity check + expect(await this.erc721aCounter.balanceOf(minter.address)).to.equal(minter.expected.balance); + } + }); + + describe('_ownershipOf', function () { + it('initial', async function () { + for (const minter of this.mintOrder) { + for (const tokenId in minter.expected.tokens) { + const ownership = await this.erc721aCounter.getOwnershipOf(tokenId); + expect(ownership.extraData).to.equal(42); + } + } + }); + + it('after a transfer', async function () { + await this.erc721aCounter.transferFrom(this.owner.address, this.addr1.address, 1); + + const tests = [ + { tokenId: 0, expectedData: 42 }, + { tokenId: 1, expectedData: 43 }, + { tokenId: 2, expectedData: 42 }, + ]; + + for (const test of tests) { + const ownership = await this.erc721aCounter.getOwnershipOf(test.tokenId); + expect(ownership.extraData).to.equal(test.expectedData); + } + }); + + it('after a burn', async function () { + await this.erc721aCounter['burn(uint256)'](2); + + const tests = [ + { tokenId: 0, expectedData: 42 }, + { tokenId: 1, expectedData: 42 }, + { tokenId: 2, expectedData: 1337 }, + ]; + + for (const test of tests) { + const ownership = await this.erc721aCounter.getOwnershipAt(test.tokenId); + expect(ownership.extraData).to.equal(test.expectedData); + } + }); + }); + + describe('setExtraData', function () { + it('can set and get the extraData directly', async function () { + const extraData = 12345; + await this.erc721aCounter.setExtraDataAt(0, extraData); + const ownership = await this.erc721aCounter.getOwnershipAt(0); + expect(ownership.extraData).to.equal(extraData); + }); + + it('setting the extraData for uninitialized slot reverts', async function () { + const extraData = 12345; + await expect(this.erc721aCounter.setExtraDataAt(2, extraData)) + .to.be.revertedWith('OwnershipNotInitializedForExtraData'); + await this.erc721aCounter.transferFrom(this.owner.address, this.addr1.address, 2); + await this.erc721aCounter.setExtraDataAt(2, extraData); + const ownership = await this.erc721aCounter.getOwnershipAt(2); + expect(ownership.extraData).to.equal(extraData); + }); + }); + }); + }); + }; + +describe( + 'ERC721A override _extraData()', + createTestSuite({ + contract: 'ERC721ATransferCounterMock', + constructorArgs: ['Azuki', 'AZUKI'], + }) +); diff --git a/lib/erc721a/test/helpers.js b/lib/erc721a/test/helpers.js new file mode 100644 index 0000000..a3d6972 --- /dev/null +++ b/lib/erc721a/test/helpers.js @@ -0,0 +1,33 @@ +const { ethers } = require('hardhat'); +const { BigNumber } = require('ethers'); + +const deployContract = async function (contractName, constructorArgs) { + let factory; + try { + factory = await ethers.getContractFactory(contractName); + } catch (e) { + factory = await ethers.getContractFactory(contractName + 'UpgradeableWithInit'); + } + let contract = await factory.deploy(...(constructorArgs || [])); + await contract.deployed(); + return contract; +}; + +const getBlockTimestamp = async function () { + return parseInt((await ethers.provider.getBlock('latest'))['timestamp']); +}; + +const mineBlockTimestamp = async function (timestamp) { + await ethers.provider.send('evm_setNextBlockTimestamp', [timestamp]); + await ethers.provider.send('evm_mine'); +}; + +const offsettedIndex = function (startTokenId, arr) { + // return one item if arr length is 1 + if (arr.length === 1) { + return BigNumber.from(startTokenId + arr[0]); + } + return arr.map((num) => BigNumber.from(startTokenId + num)); +}; + +module.exports = { deployContract, getBlockTimestamp, mineBlockTimestamp, offsettedIndex }; diff --git a/lib/forge-std/.github/workflows/ci.yml b/lib/forge-std/.github/workflows/ci.yml new file mode 100644 index 0000000..96b2336 --- /dev/null +++ b/lib/forge-std/.github/workflows/ci.yml @@ -0,0 +1,92 @@ +name: CI + +on: + workflow_dispatch: + pull_request: + push: + branches: + - master + +jobs: + build: + runs-on: ubuntu-latest + steps: + - uses: actions/checkout@v3 + + - name: Install Foundry + uses: onbjerg/foundry-toolchain@v1 + with: + version: nightly + + - name: Print forge version + run: forge --version + + # Backwards compatibility checks. + - name: Check compatibility with 0.8.0 + if: always() + run: forge build --skip test --use solc:0.8.0 + + - name: Check compatibility with 0.7.6 + if: always() + run: forge build --skip test --use solc:0.7.6 + + - name: Check compatibility with 0.7.0 + if: always() + run: forge build --skip test --use solc:0.7.0 + + - name: Check compatibility with 0.6.12 + if: always() + run: forge build --skip test --use solc:0.6.12 + + - name: Check compatibility with 0.6.2 + if: always() + run: forge build --skip test --use solc:0.6.2 + + # via-ir compilation time checks. + - name: Measure compilation time of Test with 0.8.17 --via-ir + if: always() + run: forge build --skip test --contracts test/compilation/CompilationTest.sol --use solc:0.8.17 --via-ir + + - name: Measure compilation time of TestBase with 0.8.17 --via-ir + if: always() + run: forge build --skip test --contracts test/compilation/CompilationTestBase.sol --use solc:0.8.17 --via-ir + + - name: Measure compilation time of Script with 0.8.17 --via-ir + if: always() + run: forge build --skip test --contracts test/compilation/CompilationScript.sol --use solc:0.8.17 --via-ir + + - name: Measure compilation time of ScriptBase with 0.8.17 --via-ir + if: always() + run: forge build --skip test --contracts test/compilation/CompilationScriptBase.sol --use solc:0.8.17 --via-ir + + test: + runs-on: ubuntu-latest + steps: + - uses: actions/checkout@v3 + + - name: Install Foundry + uses: onbjerg/foundry-toolchain@v1 + with: + version: nightly + + - name: Print forge version + run: forge --version + + - name: Run tests + run: forge test -vvv + + fmt: + runs-on: ubuntu-latest + steps: + - uses: actions/checkout@v3 + + - name: Install Foundry + uses: onbjerg/foundry-toolchain@v1 + with: + version: nightly + + - name: Print forge version + run: forge --version + + - name: Check formatting + run: forge fmt --check diff --git a/lib/forge-std/.gitignore b/lib/forge-std/.gitignore new file mode 100644 index 0000000..756106d --- /dev/null +++ b/lib/forge-std/.gitignore @@ -0,0 +1,4 @@ +cache/ +out/ +.vscode +.idea diff --git a/lib/forge-std/.gitmodules b/lib/forge-std/.gitmodules new file mode 100644 index 0000000..e124719 --- /dev/null +++ b/lib/forge-std/.gitmodules @@ -0,0 +1,3 @@ +[submodule "lib/ds-test"] + path = lib/ds-test + url = https://github.com/dapphub/ds-test diff --git a/lib/forge-std/LICENSE-APACHE b/lib/forge-std/LICENSE-APACHE new file mode 100644 index 0000000..cf01a49 --- /dev/null +++ b/lib/forge-std/LICENSE-APACHE @@ -0,0 +1,203 @@ +Copyright Contributors to Forge Standard Library + + Apache License + Version 2.0, January 2004 + http://www.apache.org/licenses/ + +TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION + +1. Definitions. + + "License" shall mean the terms and conditions for use, reproduction, + and distribution as defined by Sections 1 through 9 of this document. + + "Licensor" shall mean the copyright owner or entity authorized by + the copyright owner that is granting the License. + + "Legal Entity" shall mean the union of the acting entity and all + other entities that control, are controlled by, or are under common + control with that entity. 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IN NO EVENT +SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY +CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION +OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR +IN CONNECTION WITH THE SOFTWARE O THE USE OR OTHER +DEALINGS IN THE SOFTWARE.R diff --git a/lib/forge-std/README.md b/lib/forge-std/README.md new file mode 100644 index 0000000..8494a7d --- /dev/null +++ b/lib/forge-std/README.md @@ -0,0 +1,250 @@ +# Forge Standard Library • [![CI status](https://github.com/foundry-rs/forge-std/actions/workflows/ci.yml/badge.svg)](https://github.com/foundry-rs/forge-std/actions/workflows/ci.yml) + +Forge Standard Library is a collection of helpful contracts and libraries for use with [Forge and Foundry](https://github.com/foundry-rs/foundry). It leverages Forge's cheatcodes to make writing tests easier and faster, while improving the UX of cheatcodes. + +**Learn how to use Forge-Std with the [📖 Foundry Book (Forge-Std Guide)](https://book.getfoundry.sh/forge/forge-std.html).** + +## Install + +```bash +forge install foundry-rs/forge-std +``` + +## Contracts +### stdError + +This is a helper contract for errors and reverts. In Forge, this contract is particularly helpful for the `expectRevert` cheatcode, as it provides all compiler builtin errors. + +See the contract itself for all error codes. + +#### Example usage + +```solidity + +import "forge-std/Test.sol"; + +contract TestContract is Test { + ErrorsTest test; + + function setUp() public { + test = new ErrorsTest(); + } + + function testExpectArithmetic() public { + vm.expectRevert(stdError.arithmeticError); + test.arithmeticError(10); + } +} + +contract ErrorsTest { + function arithmeticError(uint256 a) public { + uint256 a = a - 100; + } +} +``` + +### stdStorage + +This is a rather large contract due to all of the overloading to make the UX decent. Primarily, it is a wrapper around the `record` and `accesses` cheatcodes. It can *always* find and write the storage slot(s) associated with a particular variable without knowing the storage layout. The one _major_ caveat to this is while a slot can be found for packed storage variables, we can't write to that variable safely. If a user tries to write to a packed slot, the execution throws an error, unless it is uninitialized (`bytes32(0)`). + +This works by recording all `SLOAD`s and `SSTORE`s during a function call. If there is a single slot read or written to, it immediately returns the slot. Otherwise, behind the scenes, we iterate through and check each one (assuming the user passed in a `depth` parameter). If the variable is a struct, you can pass in a `depth` parameter which is basically the field depth. + +I.e.: +```solidity +struct T { + // depth 0 + uint256 a; + // depth 1 + uint256 b; +} +``` + +#### Example usage + +```solidity +import "forge-std/Test.sol"; + +contract TestContract is Test { + using stdStorage for StdStorage; + + Storage test; + + function setUp() public { + test = new Storage(); + } + + function testFindExists() public { + // Lets say we want to find the slot for the public + // variable `exists`. We just pass in the function selector + // to the `find` command + uint256 slot = stdstore.target(address(test)).sig("exists()").find(); + assertEq(slot, 0); + } + + function testWriteExists() public { + // Lets say we want to write to the slot for the public + // variable `exists`. We just pass in the function selector + // to the `checked_write` command + stdstore.target(address(test)).sig("exists()").checked_write(100); + assertEq(test.exists(), 100); + } + + // It supports arbitrary storage layouts, like assembly based storage locations + function testFindHidden() public { + // `hidden` is a random hash of a bytes, iteration through slots would + // not find it. Our mechanism does + // Also, you can use the selector instead of a string + uint256 slot = stdstore.target(address(test)).sig(test.hidden.selector).find(); + assertEq(slot, uint256(keccak256("my.random.var"))); + } + + // If targeting a mapping, you have to pass in the keys necessary to perform the find + // i.e.: + function testFindMapping() public { + uint256 slot = stdstore + .target(address(test)) + .sig(test.map_addr.selector) + .with_key(address(this)) + .find(); + // in the `Storage` constructor, we wrote that this address' value was 1 in the map + // so when we load the slot, we expect it to be 1 + assertEq(uint(vm.load(address(test), bytes32(slot))), 1); + } + + // If the target is a struct, you can specify the field depth: + function testFindStruct() public { + // NOTE: see the depth parameter - 0 means 0th field, 1 means 1st field, etc. + uint256 slot_for_a_field = stdstore + .target(address(test)) + .sig(test.basicStruct.selector) + .depth(0) + .find(); + + uint256 slot_for_b_field = stdstore + .target(address(test)) + .sig(test.basicStruct.selector) + .depth(1) + .find(); + + assertEq(uint(vm.load(address(test), bytes32(slot_for_a_field))), 1); + assertEq(uint(vm.load(address(test), bytes32(slot_for_b_field))), 2); + } +} + +// A complex storage contract +contract Storage { + struct UnpackedStruct { + uint256 a; + uint256 b; + } + + constructor() { + map_addr[msg.sender] = 1; + } + + uint256 public exists = 1; + mapping(address => uint256) public map_addr; + // mapping(address => Packed) public map_packed; + mapping(address => UnpackedStruct) public map_struct; + mapping(address => mapping(address => uint256)) public deep_map; + mapping(address => mapping(address => UnpackedStruct)) public deep_map_struct; + UnpackedStruct public basicStruct = UnpackedStruct({ + a: 1, + b: 2 + }); + + function hidden() public view returns (bytes32 t) { + // an extremely hidden storage slot + bytes32 slot = keccak256("my.random.var"); + assembly { + t := sload(slot) + } + } +} +``` + +### stdCheats + +This is a wrapper over miscellaneous cheatcodes that need wrappers to be more dev friendly. Currently there are only functions related to `prank`. In general, users may expect ETH to be put into an address on `prank`, but this is not the case for safety reasons. Explicitly this `hoax` function should only be used for address that have expected balances as it will get overwritten. If an address already has ETH, you should just use `prank`. If you want to change that balance explicitly, just use `deal`. If you want to do both, `hoax` is also right for you. + + +#### Example usage: +```solidity + +// SPDX-License-Identifier: MIT +pragma solidity ^0.8.0; + +import "forge-std/Test.sol"; + +// Inherit the stdCheats +contract StdCheatsTest is Test { + Bar test; + function setUp() public { + test = new Bar(); + } + + function testHoax() public { + // we call `hoax`, which gives the target address + // eth and then calls `prank` + hoax(address(1337)); + test.bar{value: 100}(address(1337)); + + // overloaded to allow you to specify how much eth to + // initialize the address with + hoax(address(1337), 1); + test.bar{value: 1}(address(1337)); + } + + function testStartHoax() public { + // we call `startHoax`, which gives the target address + // eth and then calls `startPrank` + // + // it is also overloaded so that you can specify an eth amount + startHoax(address(1337)); + test.bar{value: 100}(address(1337)); + test.bar{value: 100}(address(1337)); + vm.stopPrank(); + test.bar(address(this)); + } +} + +contract Bar { + function bar(address expectedSender) public payable { + require(msg.sender == expectedSender, "!prank"); + } +} +``` + +### Std Assertions + +Expand upon the assertion functions from the `DSTest` library. + +### `console.log` + +Usage follows the same format as [Hardhat](https://hardhat.org/hardhat-network/reference/#console-log). +It's recommended to use `console2.sol` as shown below, as this will show the decoded logs in Forge traces. + +```solidity +// import it indirectly via Test.sol +import "forge-std/Test.sol"; +// or directly import it +import "forge-std/console2.sol"; +... +console2.log(someValue); +``` + +If you need compatibility with Hardhat, you must use the standard `console.sol` instead. +Due to a bug in `console.sol`, logs that use `uint256` or `int256` types will not be properly decoded in Forge traces. + +```solidity +// import it indirectly via Test.sol +import "forge-std/Test.sol"; +// or directly import it +import "forge-std/console.sol"; +... +console.log(someValue); +``` + +## License + +Forge Standard Library is offered under either [MIT](LICENSE-MIT) or [Apache 2.0](LICENSE-APACHE) license. diff --git a/lib/forge-std/foundry.toml b/lib/forge-std/foundry.toml new file mode 100644 index 0000000..cca8301 --- /dev/null +++ b/lib/forge-std/foundry.toml @@ -0,0 +1,21 @@ +[profile.default] +fs_permissions = [{ access = "read-write", path = "./"}] + +[rpc_endpoints] +# The RPC URLs are modified versions of the default for testing initialization. +mainnet = "https://mainnet.infura.io/v3/7a8769b798b642f6933f2ed52042bd70" # Different API key. +optimism_goerli = "https://goerli.optimism.io/" # Adds a trailing slash. +arbitrum_one_goerli = "https://goerli-rollup.arbitrum.io/rpc/" # Adds a trailing slash. +needs_undefined_env_var = "${UNDEFINED_RPC_URL_PLACEHOLDER}" + +[fmt] +# These are all the `forge fmt` defaults. +line_length = 120 +tab_width = 4 +bracket_spacing = false +int_types = 'long' +multiline_func_header = 'attributes_first' +quote_style = 'double' +number_underscore = 'preserve' +single_line_statement_blocks = 'preserve' +ignore = ["src/console.sol", "src/console2.sol"] \ No newline at end of file diff --git a/lib/forge-std/lib/ds-test/.gitignore b/lib/forge-std/lib/ds-test/.gitignore new file mode 100644 index 0000000..63f0b2c --- /dev/null +++ b/lib/forge-std/lib/ds-test/.gitignore @@ -0,0 +1,3 @@ +/.dapple +/build +/out diff --git a/lib/forge-std/lib/ds-test/LICENSE b/lib/forge-std/lib/ds-test/LICENSE new file mode 100644 index 0000000..94a9ed0 --- /dev/null +++ b/lib/forge-std/lib/ds-test/LICENSE @@ -0,0 +1,674 @@ + GNU GENERAL PUBLIC LICENSE + Version 3, 29 June 2007 + + Copyright (C) 2007 Free Software Foundation, Inc. + Everyone is permitted to copy and distribute verbatim copies + of this license document, but changing it is not allowed. + + Preamble + + The GNU General Public License is a free, copyleft license for +software and other kinds of works. + + The licenses for most software and other practical works are designed +to take away your freedom to share and change the works. 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But first, please read +. diff --git a/lib/forge-std/lib/ds-test/Makefile b/lib/forge-std/lib/ds-test/Makefile new file mode 100644 index 0000000..661dac4 --- /dev/null +++ b/lib/forge-std/lib/ds-test/Makefile @@ -0,0 +1,14 @@ +all:; dapp build + +test: + -dapp --use solc:0.4.23 build + -dapp --use solc:0.4.26 build + -dapp --use solc:0.5.17 build + -dapp --use solc:0.6.12 build + -dapp --use solc:0.7.5 build + +demo: + DAPP_SRC=demo dapp --use solc:0.7.5 build + -hevm dapp-test --verbose 3 + +.PHONY: test demo diff --git a/lib/forge-std/lib/ds-test/default.nix b/lib/forge-std/lib/ds-test/default.nix new file mode 100644 index 0000000..cf65419 --- /dev/null +++ b/lib/forge-std/lib/ds-test/default.nix @@ -0,0 +1,4 @@ +{ solidityPackage, dappsys }: solidityPackage { + name = "ds-test"; + src = ./src; +} diff --git a/lib/forge-std/lib/ds-test/demo/demo.sol b/lib/forge-std/lib/ds-test/demo/demo.sol new file mode 100644 index 0000000..f3bb48e --- /dev/null +++ b/lib/forge-std/lib/ds-test/demo/demo.sol @@ -0,0 +1,222 @@ +// SPDX-License-Identifier: GPL-3.0-or-later +pragma solidity >=0.5.0; + +import "../src/test.sol"; + +contract DemoTest is DSTest { + function test_this() public pure { + require(true); + } + function test_logs() public { + emit log("-- log(string)"); + emit log("a string"); + + emit log("-- log_named_uint(string, uint)"); + emit log_named_uint("uint", 512); + + emit log("-- log_named_int(string, int)"); + emit log_named_int("int", -512); + + emit log("-- log_named_address(string, address)"); + emit log_named_address("address", address(this)); + + emit log("-- log_named_bytes32(string, bytes32)"); + emit log_named_bytes32("bytes32", "a string"); + + emit log("-- log_named_bytes(string, bytes)"); + emit log_named_bytes("bytes", hex"cafefe"); + + emit log("-- log_named_string(string, string)"); + emit log_named_string("string", "a string"); + + emit log("-- log_named_decimal_uint(string, uint, uint)"); + emit log_named_decimal_uint("decimal uint", 1.0e18, 18); + + emit log("-- log_named_decimal_int(string, int, uint)"); + emit log_named_decimal_int("decimal int", -1.0e18, 18); + } + event log_old_named_uint(bytes32,uint); + function test_old_logs() public { + emit log_old_named_uint("key", 500); + emit log_named_bytes32("bkey", "val"); + } + function test_trace() public view { + this.echo("string 1", "string 2"); + } + function test_multiline() public { + emit log("a multiline\\nstring"); + emit log("a multiline string"); + emit log_bytes("a string"); + emit log_bytes("a multiline\nstring"); + emit log_bytes("a multiline\\nstring"); + emit logs(hex"0000"); + emit log_named_bytes("0x0000", hex"0000"); + emit logs(hex"ff"); + } + function echo(string memory s1, string memory s2) public pure + returns (string memory, string memory) + { + return (s1, s2); + } + + function prove_this(uint x) public { + emit log_named_uint("sym x", x); + assertGt(x + 1, 0); + } + + function test_logn() public { + assembly { + log0(0x01, 0x02) + log1(0x01, 0x02, 0x03) + log2(0x01, 0x02, 0x03, 0x04) + log3(0x01, 0x02, 0x03, 0x04, 0x05) + } + } + + event MyEvent(uint, uint indexed, uint, uint indexed); + function test_events() public { + emit MyEvent(1, 2, 3, 4); + } + + function test_asserts() public { + string memory err = "this test has failed!"; + emit log("## assertTrue(bool)\n"); + assertTrue(false); + emit log("\n"); + assertTrue(false, err); + + emit log("\n## assertEq(address,address)\n"); + assertEq(address(this), msg.sender); + emit log("\n"); + assertEq(address(this), msg.sender, err); + + emit log("\n## assertEq32(bytes32,bytes32)\n"); + assertEq32("bytes 1", "bytes 2"); + emit log("\n"); + assertEq32("bytes 1", "bytes 2", err); + + emit log("\n## assertEq(bytes32,bytes32)\n"); + assertEq32("bytes 1", "bytes 2"); + emit log("\n"); + assertEq32("bytes 1", "bytes 2", err); + + emit log("\n## assertEq(uint,uint)\n"); + assertEq(uint(0), 1); + emit log("\n"); + assertEq(uint(0), 1, err); + + emit log("\n## assertEq(int,int)\n"); + assertEq(-1, -2); + emit log("\n"); + assertEq(-1, -2, err); + + emit log("\n## assertEqDecimal(int,int,uint)\n"); + assertEqDecimal(-1.0e18, -1.1e18, 18); + emit log("\n"); + assertEqDecimal(-1.0e18, -1.1e18, 18, err); + + emit log("\n## assertEqDecimal(uint,uint,uint)\n"); + assertEqDecimal(uint(1.0e18), 1.1e18, 18); + emit log("\n"); + assertEqDecimal(uint(1.0e18), 1.1e18, 18, err); + + emit log("\n## assertGt(uint,uint)\n"); + assertGt(uint(0), 0); + emit log("\n"); + assertGt(uint(0), 0, err); + + emit log("\n## assertGt(int,int)\n"); + assertGt(-1, -1); + emit log("\n"); + assertGt(-1, -1, err); + + emit log("\n## assertGtDecimal(int,int,uint)\n"); + assertGtDecimal(-2.0e18, -1.1e18, 18); + emit log("\n"); + assertGtDecimal(-2.0e18, -1.1e18, 18, err); + + emit log("\n## assertGtDecimal(uint,uint,uint)\n"); + assertGtDecimal(uint(1.0e18), 1.1e18, 18); + emit log("\n"); + assertGtDecimal(uint(1.0e18), 1.1e18, 18, err); + + emit log("\n## assertGe(uint,uint)\n"); + assertGe(uint(0), 1); + emit log("\n"); + assertGe(uint(0), 1, err); + + emit log("\n## assertGe(int,int)\n"); + assertGe(-1, 0); + emit log("\n"); + assertGe(-1, 0, err); + + emit log("\n## assertGeDecimal(int,int,uint)\n"); + assertGeDecimal(-2.0e18, -1.1e18, 18); + emit log("\n"); + assertGeDecimal(-2.0e18, -1.1e18, 18, err); + + emit log("\n## assertGeDecimal(uint,uint,uint)\n"); + assertGeDecimal(uint(1.0e18), 1.1e18, 18); + emit log("\n"); + assertGeDecimal(uint(1.0e18), 1.1e18, 18, err); + + emit log("\n## assertLt(uint,uint)\n"); + assertLt(uint(0), 0); + emit log("\n"); + assertLt(uint(0), 0, err); + + emit log("\n## assertLt(int,int)\n"); + assertLt(-1, -1); + emit log("\n"); + assertLt(-1, -1, err); + + emit log("\n## assertLtDecimal(int,int,uint)\n"); + assertLtDecimal(-1.0e18, -1.1e18, 18); + emit log("\n"); + assertLtDecimal(-1.0e18, -1.1e18, 18, err); + + emit log("\n## assertLtDecimal(uint,uint,uint)\n"); + assertLtDecimal(uint(2.0e18), 1.1e18, 18); + emit log("\n"); + assertLtDecimal(uint(2.0e18), 1.1e18, 18, err); + + emit log("\n## assertLe(uint,uint)\n"); + assertLe(uint(1), 0); + emit log("\n"); + assertLe(uint(1), 0, err); + + emit log("\n## assertLe(int,int)\n"); + assertLe(0, -1); + emit log("\n"); + assertLe(0, -1, err); + + emit log("\n## assertLeDecimal(int,int,uint)\n"); + assertLeDecimal(-1.0e18, -1.1e18, 18); + emit log("\n"); + assertLeDecimal(-1.0e18, -1.1e18, 18, err); + + emit log("\n## assertLeDecimal(uint,uint,uint)\n"); + assertLeDecimal(uint(2.0e18), 1.1e18, 18); + emit log("\n"); + assertLeDecimal(uint(2.0e18), 1.1e18, 18, err); + + emit log("\n## assertEq(string,string)\n"); + string memory s1 = "string 1"; + string memory s2 = "string 2"; + assertEq(s1, s2); + emit log("\n"); + assertEq(s1, s2, err); + + emit log("\n## assertEq0(bytes,bytes)\n"); + assertEq0(hex"abcdef01", hex"abcdef02"); + emit log("\n"); + assertEq0(hex"abcdef01", hex"abcdef02", err); + } +} + +contract DemoTestWithSetUp { + function setUp() public { + } + function test_pass() public pure { + } +} diff --git a/lib/forge-std/lib/ds-test/package.json b/lib/forge-std/lib/ds-test/package.json new file mode 100644 index 0000000..4802ada --- /dev/null +++ b/lib/forge-std/lib/ds-test/package.json @@ -0,0 +1,15 @@ +{ + "name": "ds-test", + "version": "1.0.0", + "description": "Assertions, equality checks and other test helpers ", + "bugs": "https://github.com/dapphub/ds-test/issues", + "license": "GPL-3.0", + "author": "Contributors to ds-test", + "files": [ + "src/*" + ], + "repository": { + "type": "git", + "url": "https://github.com/dapphub/ds-test.git" + } +} diff --git a/lib/forge-std/lib/ds-test/src/test.sol b/lib/forge-std/lib/ds-test/src/test.sol new file mode 100644 index 0000000..515a3bd --- /dev/null +++ b/lib/forge-std/lib/ds-test/src/test.sol @@ -0,0 +1,469 @@ +// SPDX-License-Identifier: GPL-3.0-or-later + +// This program is free software: you can redistribute it and/or modify +// it under the terms of the GNU General Public License as published by +// the Free Software Foundation, either version 3 of the License, or +// (at your option) any later version. + +// This program is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. + +// You should have received a copy of the GNU General Public License +// along with this program. If not, see . + +pragma solidity >=0.5.0; + +contract DSTest { + event log (string); + event logs (bytes); + + event log_address (address); + event log_bytes32 (bytes32); + event log_int (int); + event log_uint (uint); + event log_bytes (bytes); + event log_string (string); + + event log_named_address (string key, address val); + event log_named_bytes32 (string key, bytes32 val); + event log_named_decimal_int (string key, int val, uint decimals); + event log_named_decimal_uint (string key, uint val, uint decimals); + event log_named_int (string key, int val); + event log_named_uint (string key, uint val); + event log_named_bytes (string key, bytes val); + event log_named_string (string key, string val); + + bool public IS_TEST = true; + bool private _failed; + + address constant HEVM_ADDRESS = + address(bytes20(uint160(uint256(keccak256('hevm cheat code'))))); + + modifier mayRevert() { _; } + modifier testopts(string memory) { _; } + + function failed() public returns (bool) { + if (_failed) { + return _failed; + } else { + bool globalFailed = false; + if (hasHEVMContext()) { + (, bytes memory retdata) = HEVM_ADDRESS.call( + abi.encodePacked( + bytes4(keccak256("load(address,bytes32)")), + abi.encode(HEVM_ADDRESS, bytes32("failed")) + ) + ); + globalFailed = abi.decode(retdata, (bool)); + } + return globalFailed; + } + } + + function fail() internal { + if (hasHEVMContext()) { + (bool status, ) = HEVM_ADDRESS.call( + abi.encodePacked( + bytes4(keccak256("store(address,bytes32,bytes32)")), + abi.encode(HEVM_ADDRESS, bytes32("failed"), bytes32(uint256(0x01))) + ) + ); + status; // Silence compiler warnings + } + _failed = true; + } + + function hasHEVMContext() internal view returns (bool) { + uint256 hevmCodeSize = 0; + assembly { + hevmCodeSize := extcodesize(0x7109709ECfa91a80626fF3989D68f67F5b1DD12D) + } + return hevmCodeSize > 0; + } + + modifier logs_gas() { + uint startGas = gasleft(); + _; + uint endGas = gasleft(); + emit log_named_uint("gas", startGas - endGas); + } + + function assertTrue(bool condition) internal { + if (!condition) { + emit log("Error: Assertion Failed"); + fail(); + } + } + + function assertTrue(bool condition, string memory err) internal { + if (!condition) { + emit log_named_string("Error", err); + assertTrue(condition); + } + } + + function assertEq(address a, address b) internal { + if (a != b) { + emit log("Error: a == b not satisfied [address]"); + emit log_named_address(" Expected", b); + emit log_named_address(" Actual", a); + fail(); + } + } + function assertEq(address a, address b, string memory err) internal { + if (a != b) { + emit log_named_string ("Error", err); + assertEq(a, b); + } + } + + function assertEq(bytes32 a, bytes32 b) internal { + if (a != b) { + emit log("Error: a == b not satisfied [bytes32]"); + emit log_named_bytes32(" Expected", b); + emit log_named_bytes32(" Actual", a); + fail(); + } + } + function assertEq(bytes32 a, bytes32 b, string memory err) internal { + if (a != b) { + emit log_named_string ("Error", err); + assertEq(a, b); + } + } + function assertEq32(bytes32 a, bytes32 b) internal { + assertEq(a, b); + } + function assertEq32(bytes32 a, bytes32 b, string memory err) internal { + assertEq(a, b, err); + } + + function assertEq(int a, int b) internal { + if (a != b) { + emit log("Error: a == b not satisfied [int]"); + emit log_named_int(" Expected", b); + emit log_named_int(" Actual", a); + fail(); + } + } + function assertEq(int a, int b, string memory err) internal { + if (a != b) { + emit log_named_string("Error", err); + assertEq(a, b); + } + } + function assertEq(uint a, uint b) internal { + if (a != b) { + emit log("Error: a == b not satisfied [uint]"); + emit log_named_uint(" Expected", b); + emit log_named_uint(" Actual", a); + fail(); + } + } + function assertEq(uint a, uint b, string memory err) internal { + if (a != b) { + emit log_named_string("Error", err); + assertEq(a, b); + } + } + function assertEqDecimal(int a, int b, uint decimals) internal { + if (a != b) { + emit log("Error: a == b not satisfied [decimal int]"); + emit log_named_decimal_int(" Expected", b, decimals); + emit log_named_decimal_int(" Actual", a, decimals); + fail(); + } + } + function assertEqDecimal(int a, int b, uint decimals, string memory err) internal { + if (a != b) { + emit log_named_string("Error", err); + assertEqDecimal(a, b, decimals); + } + } + function assertEqDecimal(uint a, uint b, uint decimals) internal { + if (a != b) { + emit log("Error: a == b not satisfied [decimal uint]"); + emit log_named_decimal_uint(" Expected", b, decimals); + emit log_named_decimal_uint(" Actual", a, decimals); + fail(); + } + } + function assertEqDecimal(uint a, uint b, uint decimals, string memory err) internal { + if (a != b) { + emit log_named_string("Error", err); + assertEqDecimal(a, b, decimals); + } + } + + function assertGt(uint a, uint b) internal { + if (a <= b) { + emit log("Error: a > b not satisfied [uint]"); + emit log_named_uint(" Value a", a); + emit log_named_uint(" Value b", b); + fail(); + } + } + function assertGt(uint a, uint b, string memory err) internal { + if (a <= b) { + emit log_named_string("Error", err); + assertGt(a, b); + } + } + function assertGt(int a, int b) internal { + if (a <= b) { + emit log("Error: a > b not satisfied [int]"); + emit log_named_int(" Value a", a); + emit log_named_int(" Value b", b); + fail(); + } + } + function assertGt(int a, int b, string memory err) internal { + if (a <= b) { + emit log_named_string("Error", err); + assertGt(a, b); + } + } + function assertGtDecimal(int a, int b, uint decimals) internal { + if (a <= b) { + emit log("Error: a > b not satisfied [decimal int]"); + emit log_named_decimal_int(" Value a", a, decimals); + emit log_named_decimal_int(" Value b", b, decimals); + fail(); + } + } + function assertGtDecimal(int a, int b, uint decimals, string memory err) internal { + if (a <= b) { + emit log_named_string("Error", err); + assertGtDecimal(a, b, decimals); + } + } + function assertGtDecimal(uint a, uint b, uint decimals) internal { + if (a <= b) { + emit log("Error: a > b not satisfied [decimal uint]"); + emit log_named_decimal_uint(" Value a", a, decimals); + emit log_named_decimal_uint(" Value b", b, decimals); + fail(); + } + } + function assertGtDecimal(uint a, uint b, uint decimals, string memory err) internal { + if (a <= b) { + emit log_named_string("Error", err); + assertGtDecimal(a, b, decimals); + } + } + + function assertGe(uint a, uint b) internal { + if (a < b) { + emit log("Error: a >= b not satisfied [uint]"); + emit log_named_uint(" Value a", a); + emit log_named_uint(" Value b", b); + fail(); + } + } + function assertGe(uint a, uint b, string memory err) internal { + if (a < b) { + emit log_named_string("Error", err); + assertGe(a, b); + } + } + function assertGe(int a, int b) internal { + if (a < b) { + emit log("Error: a >= b not satisfied [int]"); + emit log_named_int(" Value a", a); + emit log_named_int(" Value b", b); + fail(); + } + } + function assertGe(int a, int b, string memory err) internal { + if (a < b) { + emit log_named_string("Error", err); + assertGe(a, b); + } + } + function assertGeDecimal(int a, int b, uint decimals) internal { + if (a < b) { + emit log("Error: a >= b not satisfied [decimal int]"); + emit log_named_decimal_int(" Value a", a, decimals); + emit log_named_decimal_int(" Value b", b, decimals); + fail(); + } + } + function assertGeDecimal(int a, int b, uint decimals, string memory err) internal { + if (a < b) { + emit log_named_string("Error", err); + assertGeDecimal(a, b, decimals); + } + } + function assertGeDecimal(uint a, uint b, uint decimals) internal { + if (a < b) { + emit log("Error: a >= b not satisfied [decimal uint]"); + emit log_named_decimal_uint(" Value a", a, decimals); + emit log_named_decimal_uint(" Value b", b, decimals); + fail(); + } + } + function assertGeDecimal(uint a, uint b, uint decimals, string memory err) internal { + if (a < b) { + emit log_named_string("Error", err); + assertGeDecimal(a, b, decimals); + } + } + + function assertLt(uint a, uint b) internal { + if (a >= b) { + emit log("Error: a < b not satisfied [uint]"); + emit log_named_uint(" Value a", a); + emit log_named_uint(" Value b", b); + fail(); + } + } + function assertLt(uint a, uint b, string memory err) internal { + if (a >= b) { + emit log_named_string("Error", err); + assertLt(a, b); + } + } + function assertLt(int a, int b) internal { + if (a >= b) { + emit log("Error: a < b not satisfied [int]"); + emit log_named_int(" Value a", a); + emit log_named_int(" Value b", b); + fail(); + } + } + function assertLt(int a, int b, string memory err) internal { + if (a >= b) { + emit log_named_string("Error", err); + assertLt(a, b); + } + } + function assertLtDecimal(int a, int b, uint decimals) internal { + if (a >= b) { + emit log("Error: a < b not satisfied [decimal int]"); + emit log_named_decimal_int(" Value a", a, decimals); + emit log_named_decimal_int(" Value b", b, decimals); + fail(); + } + } + function assertLtDecimal(int a, int b, uint decimals, string memory err) internal { + if (a >= b) { + emit log_named_string("Error", err); + assertLtDecimal(a, b, decimals); + } + } + function assertLtDecimal(uint a, uint b, uint decimals) internal { + if (a >= b) { + emit log("Error: a < b not satisfied [decimal uint]"); + emit log_named_decimal_uint(" Value a", a, decimals); + emit log_named_decimal_uint(" Value b", b, decimals); + fail(); + } + } + function assertLtDecimal(uint a, uint b, uint decimals, string memory err) internal { + if (a >= b) { + emit log_named_string("Error", err); + assertLtDecimal(a, b, decimals); + } + } + + function assertLe(uint a, uint b) internal { + if (a > b) { + emit log("Error: a <= b not satisfied [uint]"); + emit log_named_uint(" Value a", a); + emit log_named_uint(" Value b", b); + fail(); + } + } + function assertLe(uint a, uint b, string memory err) internal { + if (a > b) { + emit log_named_string("Error", err); + assertLe(a, b); + } + } + function assertLe(int a, int b) internal { + if (a > b) { + emit log("Error: a <= b not satisfied [int]"); + emit log_named_int(" Value a", a); + emit log_named_int(" Value b", b); + fail(); + } + } + function assertLe(int a, int b, string memory err) internal { + if (a > b) { + emit log_named_string("Error", err); + assertLe(a, b); + } + } + function assertLeDecimal(int a, int b, uint decimals) internal { + if (a > b) { + emit log("Error: a <= b not satisfied [decimal int]"); + emit log_named_decimal_int(" Value a", a, decimals); + emit log_named_decimal_int(" Value b", b, decimals); + fail(); + } + } + function assertLeDecimal(int a, int b, uint decimals, string memory err) internal { + if (a > b) { + emit log_named_string("Error", err); + assertLeDecimal(a, b, decimals); + } + } + function assertLeDecimal(uint a, uint b, uint decimals) internal { + if (a > b) { + emit log("Error: a <= b not satisfied [decimal uint]"); + emit log_named_decimal_uint(" Value a", a, decimals); + emit log_named_decimal_uint(" Value b", b, decimals); + fail(); + } + } + function assertLeDecimal(uint a, uint b, uint decimals, string memory err) internal { + if (a > b) { + emit log_named_string("Error", err); + assertGeDecimal(a, b, decimals); + } + } + + function assertEq(string memory a, string memory b) internal { + if (keccak256(abi.encodePacked(a)) != keccak256(abi.encodePacked(b))) { + emit log("Error: a == b not satisfied [string]"); + emit log_named_string(" Expected", b); + emit log_named_string(" Actual", a); + fail(); + } + } + function assertEq(string memory a, string memory b, string memory err) internal { + if (keccak256(abi.encodePacked(a)) != keccak256(abi.encodePacked(b))) { + emit log_named_string("Error", err); + assertEq(a, b); + } + } + + function checkEq0(bytes memory a, bytes memory b) internal pure returns (bool ok) { + ok = true; + if (a.length == b.length) { + for (uint i = 0; i < a.length; i++) { + if (a[i] != b[i]) { + ok = false; + } + } + } else { + ok = false; + } + } + function assertEq0(bytes memory a, bytes memory b) internal { + if (!checkEq0(a, b)) { + emit log("Error: a == b not satisfied [bytes]"); + emit log_named_bytes(" Expected", b); + emit log_named_bytes(" Actual", a); + fail(); + } + } + function assertEq0(bytes memory a, bytes memory b, string memory err) internal { + if (!checkEq0(a, b)) { + emit log_named_string("Error", err); + assertEq0(a, b); + } + } +} diff --git a/lib/forge-std/package.json b/lib/forge-std/package.json new file mode 100644 index 0000000..a000ac8 --- /dev/null +++ b/lib/forge-std/package.json @@ -0,0 +1,16 @@ +{ + "name": "forge-std", + "version": "1.2.0", + "description": "Forge Standard Library is a collection of helpful contracts and libraries for use with Forge and Foundry.", + "homepage": "https://book.getfoundry.sh/forge/forge-std", + "bugs": "https://github.com/foundry-rs/forge-std/issues", + "license": "(Apache-2.0 OR MIT)", + "author": "Contributors to Forge Standard Library", + "files": [ + "src/*" + ], + "repository": { + "type": "git", + "url": "https://github.com/foundry-rs/forge-std.git" + } +} diff --git a/lib/forge-std/src/Base.sol b/lib/forge-std/src/Base.sol new file mode 100644 index 0000000..83c5c1c --- /dev/null +++ b/lib/forge-std/src/Base.sol @@ -0,0 +1,33 @@ +// SPDX-License-Identifier: MIT +pragma solidity >=0.6.2 <0.9.0; + +import {StdStorage} from "./StdStorage.sol"; +import {Vm, VmSafe} from "./Vm.sol"; + +abstract contract CommonBase { + // Cheat code address, 0x7109709ECfa91a80626fF3989D68f67F5b1DD12D. + address internal constant VM_ADDRESS = address(uint160(uint256(keccak256("hevm cheat code")))); + // console.sol and console2.sol work by executing a staticcall to this address. + address internal constant CONSOLE = 0x000000000000000000636F6e736F6c652e6c6f67; + // Default address for tx.origin and msg.sender, 0x1804c8AB1F12E6bbf3894d4083f33e07309d1f38. + address internal constant DEFAULT_SENDER = address(uint160(uint256(keccak256("foundry default caller")))); + // Address of the test contract, deployed by the DEFAULT_SENDER. + address internal constant DEFAULT_TEST_CONTRACT = 0x5615dEB798BB3E4dFa0139dFa1b3D433Cc23b72f; + // Deterministic deployment address of the Multicall3 contract. + address internal constant MULTICALL3_ADDRESS = 0xcA11bde05977b3631167028862bE2a173976CA11; + + uint256 internal constant UINT256_MAX = + 115792089237316195423570985008687907853269984665640564039457584007913129639935; + + Vm internal constant vm = Vm(VM_ADDRESS); + StdStorage internal stdstore; +} + +abstract contract TestBase is CommonBase {} + +abstract contract ScriptBase is CommonBase { + // Used when deploying with create2, https://github.com/Arachnid/deterministic-deployment-proxy. + address internal constant CREATE2_FACTORY = 0x4e59b44847b379578588920cA78FbF26c0B4956C; + + VmSafe internal constant vmSafe = VmSafe(VM_ADDRESS); +} diff --git a/lib/forge-std/src/InvariantTest.sol b/lib/forge-std/src/InvariantTest.sol new file mode 100644 index 0000000..3f71470 --- /dev/null +++ b/lib/forge-std/src/InvariantTest.sol @@ -0,0 +1,92 @@ +// SPDX-License-Identifier: MIT +pragma solidity >=0.6.2 <0.9.0; + +pragma experimental ABIEncoderV2; + +contract InvariantTest { + struct FuzzSelector { + address addr; + bytes4[] selectors; + } + + address[] private _excludedContracts; + address[] private _excludedSenders; + address[] private _targetedContracts; + address[] private _targetedSenders; + + string[] private _excludedArtifacts; + string[] private _targetedArtifacts; + + FuzzSelector[] private _targetedArtifactSelectors; + FuzzSelector[] private _targetedSelectors; + + // Functions for users: + // These are intended to be called in tests. + + function excludeContract(address newExcludedContract_) internal { + _excludedContracts.push(newExcludedContract_); + } + + function excludeSender(address newExcludedSender_) internal { + _excludedSenders.push(newExcludedSender_); + } + + function targetArtifact(string memory newTargetedArtifact_) internal { + _targetedArtifacts.push(newTargetedArtifact_); + } + + function targetArtifactSelector(FuzzSelector memory newTargetedArtifactSelector_) internal { + _targetedArtifactSelectors.push(newTargetedArtifactSelector_); + } + + function targetContract(address newTargetedContract_) internal { + _targetedContracts.push(newTargetedContract_); + } + + function targetSelector(FuzzSelector memory newTargetedSelector_) internal { + _targetedSelectors.push(newTargetedSelector_); + } + + function targetSender(address newTargetedSender_) internal { + _targetedSenders.push(newTargetedSender_); + } + + // Functions for forge: + // These are called by forge to run invariant tests and don't need to be called in tests. + + function excludeArtifact(string memory newExcludedArtifact_) internal { + _excludedArtifacts.push(newExcludedArtifact_); + } + + function excludeArtifacts() public view returns (string[] memory excludedArtifacts_) { + excludedArtifacts_ = _excludedArtifacts; + } + + function excludeContracts() public view returns (address[] memory excludedContracts_) { + excludedContracts_ = _excludedContracts; + } + + function excludeSenders() public view returns (address[] memory excludedSenders_) { + excludedSenders_ = _excludedSenders; + } + + function targetArtifacts() public view returns (string[] memory targetedArtifacts_) { + targetedArtifacts_ = _targetedArtifacts; + } + + function targetArtifactSelectors() public view returns (FuzzSelector[] memory targetedArtifactSelectors_) { + targetedArtifactSelectors_ = _targetedArtifactSelectors; + } + + function targetContracts() public view returns (address[] memory targetedContracts_) { + targetedContracts_ = _targetedContracts; + } + + function targetSelectors() public view returns (FuzzSelector[] memory targetedSelectors_) { + targetedSelectors_ = _targetedSelectors; + } + + function targetSenders() public view returns (address[] memory targetedSenders_) { + targetedSenders_ = _targetedSenders; + } +} diff --git a/lib/forge-std/src/Script.sol b/lib/forge-std/src/Script.sol new file mode 100644 index 0000000..bffccad --- /dev/null +++ b/lib/forge-std/src/Script.sol @@ -0,0 +1,26 @@ +// SPDX-License-Identifier: MIT +pragma solidity >=0.6.2 <0.9.0; + +// 💬 ABOUT +// Standard Library's default Script. + +// 🧩 MODULES +import {ScriptBase} from "./Base.sol"; +import {console} from "./console.sol"; +import {console2} from "./console2.sol"; +import {StdChains} from "./StdChains.sol"; +import {StdCheatsSafe} from "./StdCheats.sol"; +import {stdJson} from "./StdJson.sol"; +import {stdMath} from "./StdMath.sol"; +import {StdStorage, stdStorageSafe} from "./StdStorage.sol"; +import {StdUtils} from "./StdUtils.sol"; +import {VmSafe} from "./Vm.sol"; + +// 📦 BOILERPLATE +import {ScriptBase} from "./Base.sol"; + +// ⭐️ SCRIPT +abstract contract Script is StdChains, StdCheatsSafe, StdUtils, ScriptBase { + // Note: IS_SCRIPT() must return true. + bool public IS_SCRIPT = true; +} diff --git a/lib/forge-std/src/StdAssertions.sol b/lib/forge-std/src/StdAssertions.sol new file mode 100644 index 0000000..1967fa2 --- /dev/null +++ b/lib/forge-std/src/StdAssertions.sol @@ -0,0 +1,325 @@ +// SPDX-License-Identifier: MIT +pragma solidity >=0.6.2 <0.9.0; + +import {DSTest} from "ds-test/test.sol"; +import {stdMath} from "./StdMath.sol"; + +abstract contract StdAssertions is DSTest { + event log_array(uint256[] val); + event log_array(int256[] val); + event log_array(address[] val); + event log_named_array(string key, uint256[] val); + event log_named_array(string key, int256[] val); + event log_named_array(string key, address[] val); + + function fail(string memory err) internal virtual { + emit log_named_string("Error", err); + fail(); + } + + function assertFalse(bool data) internal virtual { + assertTrue(!data); + } + + function assertFalse(bool data, string memory err) internal virtual { + assertTrue(!data, err); + } + + function assertEq(bool a, bool b) internal virtual { + if (a != b) { + emit log("Error: a == b not satisfied [bool]"); + emit log_named_string(" Expected", b ? "true" : "false"); + emit log_named_string(" Actual", a ? "true" : "false"); + fail(); + } + } + + function assertEq(bool a, bool b, string memory err) internal virtual { + if (a != b) { + emit log_named_string("Error", err); + assertEq(a, b); + } + } + + function assertEq(bytes memory a, bytes memory b) internal virtual { + assertEq0(a, b); + } + + function assertEq(bytes memory a, bytes memory b, string memory err) internal virtual { + assertEq0(a, b, err); + } + + function assertEq(uint256[] memory a, uint256[] memory b) internal virtual { + if (keccak256(abi.encode(a)) != keccak256(abi.encode(b))) { + emit log("Error: a == b not satisfied [uint[]]"); + emit log_named_array(" Expected", b); + emit log_named_array(" Actual", a); + fail(); + } + } + + function assertEq(int256[] memory a, int256[] memory b) internal virtual { + if (keccak256(abi.encode(a)) != keccak256(abi.encode(b))) { + emit log("Error: a == b not satisfied [int[]]"); + emit log_named_array(" Expected", b); + emit log_named_array(" Actual", a); + fail(); + } + } + + function assertEq(address[] memory a, address[] memory b) internal virtual { + if (keccak256(abi.encode(a)) != keccak256(abi.encode(b))) { + emit log("Error: a == b not satisfied [address[]]"); + emit log_named_array(" Expected", b); + emit log_named_array(" Actual", a); + fail(); + } + } + + function assertEq(uint256[] memory a, uint256[] memory b, string memory err) internal virtual { + if (keccak256(abi.encode(a)) != keccak256(abi.encode(b))) { + emit log_named_string("Error", err); + assertEq(a, b); + } + } + + function assertEq(int256[] memory a, int256[] memory b, string memory err) internal virtual { + if (keccak256(abi.encode(a)) != keccak256(abi.encode(b))) { + emit log_named_string("Error", err); + assertEq(a, b); + } + } + + function assertEq(address[] memory a, address[] memory b, string memory err) internal virtual { + if (keccak256(abi.encode(a)) != keccak256(abi.encode(b))) { + emit log_named_string("Error", err); + assertEq(a, b); + } + } + + // Legacy helper + function assertEqUint(uint256 a, uint256 b) internal virtual { + assertEq(uint256(a), uint256(b)); + } + + function assertApproxEqAbs(uint256 a, uint256 b, uint256 maxDelta) internal virtual { + uint256 delta = stdMath.delta(a, b); + + if (delta > maxDelta) { + emit log("Error: a ~= b not satisfied [uint]"); + emit log_named_uint(" Expected", b); + emit log_named_uint(" Actual", a); + emit log_named_uint(" Max Delta", maxDelta); + emit log_named_uint(" Delta", delta); + fail(); + } + } + + function assertApproxEqAbs(uint256 a, uint256 b, uint256 maxDelta, string memory err) internal virtual { + uint256 delta = stdMath.delta(a, b); + + if (delta > maxDelta) { + emit log_named_string("Error", err); + assertApproxEqAbs(a, b, maxDelta); + } + } + + function assertApproxEqAbsDecimal(uint256 a, uint256 b, uint256 maxDelta, uint256 decimals) internal virtual { + uint256 delta = stdMath.delta(a, b); + + if (delta > maxDelta) { + emit log("Error: a ~= b not satisfied [uint]"); + emit log_named_decimal_uint(" Expected", b, decimals); + emit log_named_decimal_uint(" Actual", a, decimals); + emit log_named_decimal_uint(" Max Delta", maxDelta, decimals); + emit log_named_decimal_uint(" Delta", delta, decimals); + fail(); + } + } + + function assertApproxEqAbsDecimal(uint256 a, uint256 b, uint256 maxDelta, uint256 decimals, string memory err) + internal + virtual + { + uint256 delta = stdMath.delta(a, b); + + if (delta > maxDelta) { + emit log_named_string("Error", err); + assertApproxEqAbsDecimal(a, b, maxDelta, decimals); + } + } + + function assertApproxEqAbs(int256 a, int256 b, uint256 maxDelta) internal virtual { + uint256 delta = stdMath.delta(a, b); + + if (delta > maxDelta) { + emit log("Error: a ~= b not satisfied [int]"); + emit log_named_int(" Expected", b); + emit log_named_int(" Actual", a); + emit log_named_uint(" Max Delta", maxDelta); + emit log_named_uint(" Delta", delta); + fail(); + } + } + + function assertApproxEqAbs(int256 a, int256 b, uint256 maxDelta, string memory err) internal virtual { + uint256 delta = stdMath.delta(a, b); + + if (delta > maxDelta) { + emit log_named_string("Error", err); + assertApproxEqAbs(a, b, maxDelta); + } + } + + function assertApproxEqAbsDecimal(int256 a, int256 b, uint256 maxDelta, uint256 decimals) internal virtual { + uint256 delta = stdMath.delta(a, b); + + if (delta > maxDelta) { + emit log("Error: a ~= b not satisfied [int]"); + emit log_named_decimal_int(" Expected", b, decimals); + emit log_named_decimal_int(" Actual", a, decimals); + emit log_named_decimal_uint(" Max Delta", maxDelta, decimals); + emit log_named_decimal_uint(" Delta", delta, decimals); + fail(); + } + } + + function assertApproxEqAbsDecimal(int256 a, int256 b, uint256 maxDelta, uint256 decimals, string memory err) + internal + virtual + { + uint256 delta = stdMath.delta(a, b); + + if (delta > maxDelta) { + emit log_named_string("Error", err); + assertApproxEqAbsDecimal(a, b, maxDelta, decimals); + } + } + + function assertApproxEqRel( + uint256 a, + uint256 b, + uint256 maxPercentDelta // An 18 decimal fixed point number, where 1e18 == 100% + ) internal virtual { + if (b == 0) return assertEq(a, b); // If the expected is 0, actual must be too. + + uint256 percentDelta = stdMath.percentDelta(a, b); + + if (percentDelta > maxPercentDelta) { + emit log("Error: a ~= b not satisfied [uint]"); + emit log_named_uint(" Expected", b); + emit log_named_uint(" Actual", a); + emit log_named_decimal_uint(" Max % Delta", maxPercentDelta, 18); + emit log_named_decimal_uint(" % Delta", percentDelta, 18); + fail(); + } + } + + function assertApproxEqRel( + uint256 a, + uint256 b, + uint256 maxPercentDelta, // An 18 decimal fixed point number, where 1e18 == 100% + string memory err + ) internal virtual { + if (b == 0) return assertEq(a, b, err); // If the expected is 0, actual must be too. + + uint256 percentDelta = stdMath.percentDelta(a, b); + + if (percentDelta > maxPercentDelta) { + emit log_named_string("Error", err); + assertApproxEqRel(a, b, maxPercentDelta); + } + } + + function assertApproxEqRelDecimal( + uint256 a, + uint256 b, + uint256 maxPercentDelta, // An 18 decimal fixed point number, where 1e18 == 100% + uint256 decimals + ) internal virtual { + if (b == 0) return assertEq(a, b); // If the expected is 0, actual must be too. + + uint256 percentDelta = stdMath.percentDelta(a, b); + + if (percentDelta > maxPercentDelta) { + emit log("Error: a ~= b not satisfied [uint]"); + emit log_named_decimal_uint(" Expected", b, decimals); + emit log_named_decimal_uint(" Actual", a, decimals); + emit log_named_decimal_uint(" Max % Delta", maxPercentDelta, 18); + emit log_named_decimal_uint(" % Delta", percentDelta, 18); + fail(); + } + } + + function assertApproxEqRelDecimal( + uint256 a, + uint256 b, + uint256 maxPercentDelta, // An 18 decimal fixed point number, where 1e18 == 100% + uint256 decimals, + string memory err + ) internal virtual { + if (b == 0) return assertEq(a, b, err); // If the expected is 0, actual must be too. + + uint256 percentDelta = stdMath.percentDelta(a, b); + + if (percentDelta > maxPercentDelta) { + emit log_named_string("Error", err); + assertApproxEqRelDecimal(a, b, maxPercentDelta, decimals); + } + } + + function assertApproxEqRel(int256 a, int256 b, uint256 maxPercentDelta) internal virtual { + if (b == 0) return assertEq(a, b); // If the expected is 0, actual must be too. + + uint256 percentDelta = stdMath.percentDelta(a, b); + + if (percentDelta > maxPercentDelta) { + emit log("Error: a ~= b not satisfied [int]"); + emit log_named_int(" Expected", b); + emit log_named_int(" Actual", a); + emit log_named_decimal_uint(" Max % Delta", maxPercentDelta, 18); + emit log_named_decimal_uint(" % Delta", percentDelta, 18); + fail(); + } + } + + function assertApproxEqRel(int256 a, int256 b, uint256 maxPercentDelta, string memory err) internal virtual { + if (b == 0) return assertEq(a, b, err); // If the expected is 0, actual must be too. + + uint256 percentDelta = stdMath.percentDelta(a, b); + + if (percentDelta > maxPercentDelta) { + emit log_named_string("Error", err); + assertApproxEqRel(a, b, maxPercentDelta); + } + } + + function assertApproxEqRelDecimal(int256 a, int256 b, uint256 maxPercentDelta, uint256 decimals) internal virtual { + if (b == 0) return assertEq(a, b); // If the expected is 0, actual must be too. + + uint256 percentDelta = stdMath.percentDelta(a, b); + + if (percentDelta > maxPercentDelta) { + emit log("Error: a ~= b not satisfied [int]"); + emit log_named_decimal_int(" Expected", b, decimals); + emit log_named_decimal_int(" Actual", a, decimals); + emit log_named_decimal_uint(" Max % Delta", maxPercentDelta, 18); + emit log_named_decimal_uint(" % Delta", percentDelta, 18); + fail(); + } + } + + function assertApproxEqRelDecimal(int256 a, int256 b, uint256 maxPercentDelta, uint256 decimals, string memory err) + internal + virtual + { + if (b == 0) return assertEq(a, b, err); // If the expected is 0, actual must be too. + + uint256 percentDelta = stdMath.percentDelta(a, b); + + if (percentDelta > maxPercentDelta) { + emit log_named_string("Error", err); + assertApproxEqRelDecimal(a, b, maxPercentDelta, decimals); + } + } +} diff --git a/lib/forge-std/src/StdChains.sol b/lib/forge-std/src/StdChains.sol new file mode 100644 index 0000000..a8f178a --- /dev/null +++ b/lib/forge-std/src/StdChains.sol @@ -0,0 +1,223 @@ +// SPDX-License-Identifier: MIT +pragma solidity >=0.6.2 <0.9.0; + +pragma experimental ABIEncoderV2; + +import {VmSafe} from "./Vm.sol"; + +/** + * StdChains provides information about EVM compatible chains that can be used in scripts/tests. + * For each chain, the chain's name, chain ID, and a default RPC URL are provided. Chains are + * identified by their alias, which is the same as the alias in the `[rpc_endpoints]` section of + * the `foundry.toml` file. For best UX, ensure the alias in the `foundry.toml` file match the + * alias used in this contract, which can be found as the first argument to the + * `setChainWithDefaultRpcUrl` call in the `initialize` function. + * + * There are two main ways to use this contract: + * 1. Set a chain with `setChain(string memory chainAlias, ChainData memory chain)` or + * `setChain(string memory chainAlias, Chain memory chain)` + * 2. Get a chain with `getChain(string memory chainAlias)` or `getChain(uint256 chainId)`. + * + * The first time either of those are used, chains are initialized with the default set of RPC URLs. + * This is done in `initialize`, which uses `setChainWithDefaultRpcUrl`. Defaults are recorded in + * `defaultRpcUrls`. + * + * The `setChain` function is straightforward, and it simply saves off the given chain data. + * + * The `getChain` methods use `getChainWithUpdatedRpcUrl` to return a chain. For example, let's say + * we want to retrieve `mainnet`'s RPC URL: + * - If you haven't set any mainnet chain info with `setChain`, you haven't specified that + * chain in `foundry.toml` and no env var is set, the default data and RPC URL will be returned. + * - If you have set a mainnet RPC URL in `foundry.toml` it will return that, if valid (e.g. if + * a URL is given or if an environment variable is given and that environment variable exists). + * Otherwise, the default data is returned. + * - If you specified data with `setChain` it will return that. + * + * Summarizing the above, the prioritization hierarchy is `setChain` -> `foundry.toml` -> environment variable -> defaults. + */ +abstract contract StdChains { + VmSafe private constant vm = VmSafe(address(uint160(uint256(keccak256("hevm cheat code"))))); + + bool private initialized; + + struct ChainData { + string name; + uint256 chainId; + string rpcUrl; + } + + struct Chain { + // The chain name. + string name; + // The chain's Chain ID. + uint256 chainId; + // The chain's alias. (i.e. what gets specified in `foundry.toml`). + string chainAlias; + // A default RPC endpoint for this chain. + // NOTE: This default RPC URL is included for convenience to facilitate quick tests and + // experimentation. Do not use this RPC URL for production test suites, CI, or other heavy + // usage as you will be throttled and this is a disservice to others who need this endpoint. + string rpcUrl; + } + + // Maps from the chain's alias (matching the alias in the `foundry.toml` file) to chain data. + mapping(string => Chain) private chains; + // Maps from the chain's alias to it's default RPC URL. + mapping(string => string) private defaultRpcUrls; + // Maps from a chain ID to it's alias. + mapping(uint256 => string) private idToAlias; + + // The RPC URL will be fetched from config or defaultRpcUrls if possible. + function getChain(string memory chainAlias) internal virtual returns (Chain memory chain) { + require(bytes(chainAlias).length != 0, "StdChains getChain(string): Chain alias cannot be the empty string."); + + initialize(); + chain = chains[chainAlias]; + require( + chain.chainId != 0, + string(abi.encodePacked("StdChains getChain(string): Chain with alias \"", chainAlias, "\" not found.")) + ); + + chain = getChainWithUpdatedRpcUrl(chainAlias, chain); + } + + function getChain(uint256 chainId) internal virtual returns (Chain memory chain) { + require(chainId != 0, "StdChains getChain(uint256): Chain ID cannot be 0."); + initialize(); + string memory chainAlias = idToAlias[chainId]; + + chain = chains[chainAlias]; + + require( + chain.chainId != 0, + string(abi.encodePacked("StdChains getChain(uint256): Chain with ID ", vm.toString(chainId), " not found.")) + ); + + chain = getChainWithUpdatedRpcUrl(chainAlias, chain); + } + + // set chain info, with priority to argument's rpcUrl field. + function setChain(string memory chainAlias, ChainData memory chain) internal virtual { + require( + bytes(chainAlias).length != 0, + "StdChains setChain(string,ChainData): Chain alias cannot be the empty string." + ); + + require(chain.chainId != 0, "StdChains setChain(string,ChainData): Chain ID cannot be 0."); + + initialize(); + string memory foundAlias = idToAlias[chain.chainId]; + + require( + bytes(foundAlias).length == 0 || keccak256(bytes(foundAlias)) == keccak256(bytes(chainAlias)), + string( + abi.encodePacked( + "StdChains setChain(string,ChainData): Chain ID ", + vm.toString(chain.chainId), + " already used by \"", + foundAlias, + "\"." + ) + ) + ); + + uint256 oldChainId = chains[chainAlias].chainId; + delete idToAlias[oldChainId]; + + chains[chainAlias] = + Chain({name: chain.name, chainId: chain.chainId, chainAlias: chainAlias, rpcUrl: chain.rpcUrl}); + idToAlias[chain.chainId] = chainAlias; + } + + // set chain info, with priority to argument's rpcUrl field. + function setChain(string memory chainAlias, Chain memory chain) internal virtual { + setChain(chainAlias, ChainData({name: chain.name, chainId: chain.chainId, rpcUrl: chain.rpcUrl})); + } + + function _toUpper(string memory str) private pure returns (string memory) { + bytes memory strb = bytes(str); + bytes memory copy = new bytes(strb.length); + for (uint256 i = 0; i < strb.length; i++) { + bytes1 b = strb[i]; + if (b >= 0x61 && b <= 0x7A) { + copy[i] = bytes1(uint8(b) - 32); + } else { + copy[i] = b; + } + } + return string(copy); + } + + // lookup rpcUrl, in descending order of priority: + // current -> config (foundry.toml) -> environment variable -> default + function getChainWithUpdatedRpcUrl(string memory chainAlias, Chain memory chain) private returns (Chain memory) { + if (bytes(chain.rpcUrl).length == 0) { + try vm.rpcUrl(chainAlias) returns (string memory configRpcUrl) { + chain.rpcUrl = configRpcUrl; + } catch (bytes memory err) { + chain.rpcUrl = + vm.envOr(string(abi.encodePacked(_toUpper(chainAlias), "_RPC_URL")), defaultRpcUrls[chainAlias]); + // distinguish 'not found' from 'cannot read' + bytes memory notFoundError = + abi.encodeWithSignature("CheatCodeError", string(abi.encodePacked("invalid rpc url ", chainAlias))); + if (keccak256(notFoundError) != keccak256(err) || bytes(chain.rpcUrl).length == 0) { + /// @solidity memory-safe-assembly + assembly { + revert(add(32, err), mload(err)) + } + } + } + } + return chain; + } + + function initialize() private { + if (initialized) return; + + initialized = true; + + // If adding an RPC here, make sure to test the default RPC URL in `testRpcs` + setChainWithDefaultRpcUrl("anvil", ChainData("Anvil", 31337, "http://127.0.0.1:8545")); + setChainWithDefaultRpcUrl( + "mainnet", ChainData("Mainnet", 1, "https://mainnet.infura.io/v3/6770454bc6ea42c58aac12978531b93f") + ); + setChainWithDefaultRpcUrl( + "goerli", ChainData("Goerli", 5, "https://goerli.infura.io/v3/6770454bc6ea42c58aac12978531b93f") + ); + setChainWithDefaultRpcUrl( + "sepolia", ChainData("Sepolia", 11155111, "https://sepolia.infura.io/v3/6770454bc6ea42c58aac12978531b93f") + ); + setChainWithDefaultRpcUrl("optimism", ChainData("Optimism", 10, "https://mainnet.optimism.io")); + setChainWithDefaultRpcUrl("optimism_goerli", ChainData("Optimism Goerli", 420, "https://goerli.optimism.io")); + setChainWithDefaultRpcUrl("arbitrum_one", ChainData("Arbitrum One", 42161, "https://arb1.arbitrum.io/rpc")); + setChainWithDefaultRpcUrl( + "arbitrum_one_goerli", ChainData("Arbitrum One Goerli", 421613, "https://goerli-rollup.arbitrum.io/rpc") + ); + setChainWithDefaultRpcUrl("arbitrum_nova", ChainData("Arbitrum Nova", 42170, "https://nova.arbitrum.io/rpc")); + setChainWithDefaultRpcUrl("polygon", ChainData("Polygon", 137, "https://polygon-rpc.com")); + setChainWithDefaultRpcUrl( + "polygon_mumbai", ChainData("Polygon Mumbai", 80001, "https://rpc-mumbai.maticvigil.com") + ); + setChainWithDefaultRpcUrl("avalanche", ChainData("Avalanche", 43114, "https://api.avax.network/ext/bc/C/rpc")); + setChainWithDefaultRpcUrl( + "avalanche_fuji", ChainData("Avalanche Fuji", 43113, "https://api.avax-test.network/ext/bc/C/rpc") + ); + setChainWithDefaultRpcUrl( + "bnb_smart_chain", ChainData("BNB Smart Chain", 56, "https://bsc-dataseed1.binance.org") + ); + setChainWithDefaultRpcUrl( + "bnb_smart_chain_testnet", + ChainData("BNB Smart Chain Testnet", 97, "https://data-seed-prebsc-1-s1.binance.org:8545") + ); + setChainWithDefaultRpcUrl("gnosis_chain", ChainData("Gnosis Chain", 100, "https://rpc.gnosischain.com")); + } + + // set chain info, with priority to chainAlias' rpc url in foundry.toml + function setChainWithDefaultRpcUrl(string memory chainAlias, ChainData memory chain) private { + string memory rpcUrl = chain.rpcUrl; + defaultRpcUrls[chainAlias] = rpcUrl; + chain.rpcUrl = ""; + setChain(chainAlias, chain); + chain.rpcUrl = rpcUrl; // restore argument + } +} diff --git a/lib/forge-std/src/StdCheats.sol b/lib/forge-std/src/StdCheats.sol new file mode 100644 index 0000000..5347f29 --- /dev/null +++ b/lib/forge-std/src/StdCheats.sol @@ -0,0 +1,572 @@ +// SPDX-License-Identifier: MIT +pragma solidity >=0.6.2 <0.9.0; + +pragma experimental ABIEncoderV2; + +import {StdStorage, stdStorage} from "./StdStorage.sol"; +import {Vm} from "./Vm.sol"; + +abstract contract StdCheatsSafe { + Vm private constant vm = Vm(address(uint160(uint256(keccak256("hevm cheat code"))))); + + bool private gasMeteringOff; + + // Data structures to parse Transaction objects from the broadcast artifact + // that conform to EIP1559. The Raw structs is what is parsed from the JSON + // and then converted to the one that is used by the user for better UX. + + struct RawTx1559 { + string[] arguments; + address contractAddress; + string contractName; + // json value name = function + string functionSig; + bytes32 hash; + // json value name = tx + RawTx1559Detail txDetail; + // json value name = type + string opcode; + } + + struct RawTx1559Detail { + AccessList[] accessList; + bytes data; + address from; + bytes gas; + bytes nonce; + address to; + bytes txType; + bytes value; + } + + struct Tx1559 { + string[] arguments; + address contractAddress; + string contractName; + string functionSig; + bytes32 hash; + Tx1559Detail txDetail; + string opcode; + } + + struct Tx1559Detail { + AccessList[] accessList; + bytes data; + address from; + uint256 gas; + uint256 nonce; + address to; + uint256 txType; + uint256 value; + } + + // Data structures to parse Transaction objects from the broadcast artifact + // that DO NOT conform to EIP1559. The Raw structs is what is parsed from the JSON + // and then converted to the one that is used by the user for better UX. + + struct TxLegacy { + string[] arguments; + address contractAddress; + string contractName; + string functionSig; + string hash; + string opcode; + TxDetailLegacy transaction; + } + + struct TxDetailLegacy { + AccessList[] accessList; + uint256 chainId; + bytes data; + address from; + uint256 gas; + uint256 gasPrice; + bytes32 hash; + uint256 nonce; + bytes1 opcode; + bytes32 r; + bytes32 s; + uint256 txType; + address to; + uint8 v; + uint256 value; + } + + struct AccessList { + address accessAddress; + bytes32[] storageKeys; + } + + // Data structures to parse Receipt objects from the broadcast artifact. + // The Raw structs is what is parsed from the JSON + // and then converted to the one that is used by the user for better UX. + + struct RawReceipt { + bytes32 blockHash; + bytes blockNumber; + address contractAddress; + bytes cumulativeGasUsed; + bytes effectiveGasPrice; + address from; + bytes gasUsed; + RawReceiptLog[] logs; + bytes logsBloom; + bytes status; + address to; + bytes32 transactionHash; + bytes transactionIndex; + } + + struct Receipt { + bytes32 blockHash; + uint256 blockNumber; + address contractAddress; + uint256 cumulativeGasUsed; + uint256 effectiveGasPrice; + address from; + uint256 gasUsed; + ReceiptLog[] logs; + bytes logsBloom; + uint256 status; + address to; + bytes32 transactionHash; + uint256 transactionIndex; + } + + // Data structures to parse the entire broadcast artifact, assuming the + // transactions conform to EIP1559. + + struct EIP1559ScriptArtifact { + string[] libraries; + string path; + string[] pending; + Receipt[] receipts; + uint256 timestamp; + Tx1559[] transactions; + TxReturn[] txReturns; + } + + struct RawEIP1559ScriptArtifact { + string[] libraries; + string path; + string[] pending; + RawReceipt[] receipts; + TxReturn[] txReturns; + uint256 timestamp; + RawTx1559[] transactions; + } + + struct RawReceiptLog { + // json value = address + address logAddress; + bytes32 blockHash; + bytes blockNumber; + bytes data; + bytes logIndex; + bool removed; + bytes32[] topics; + bytes32 transactionHash; + bytes transactionIndex; + bytes transactionLogIndex; + } + + struct ReceiptLog { + // json value = address + address logAddress; + bytes32 blockHash; + uint256 blockNumber; + bytes data; + uint256 logIndex; + bytes32[] topics; + uint256 transactionIndex; + uint256 transactionLogIndex; + bool removed; + } + + struct TxReturn { + string internalType; + string value; + } + + function assumeNoPrecompiles(address addr) internal virtual { + // Assembly required since `block.chainid` was introduced in 0.8.0. + uint256 chainId; + assembly { + chainId := chainid() + } + assumeNoPrecompiles(addr, chainId); + } + + function assumeNoPrecompiles(address addr, uint256 chainId) internal pure virtual { + // Note: For some chains like Optimism these are technically predeploys (i.e. bytecode placed at a specific + // address), but the same rationale for excluding them applies so we include those too. + + // These should be present on all EVM-compatible chains. + vm.assume(addr < address(0x1) || addr > address(0x9)); + + // forgefmt: disable-start + if (chainId == 10 || chainId == 420) { + // https://github.com/ethereum-optimism/optimism/blob/eaa371a0184b56b7ca6d9eb9cb0a2b78b2ccd864/op-bindings/predeploys/addresses.go#L6-L21 + vm.assume(addr < address(0x4200000000000000000000000000000000000000) || addr > address(0x4200000000000000000000000000000000000800)); + } else if (chainId == 42161 || chainId == 421613) { + // https://developer.arbitrum.io/useful-addresses#arbitrum-precompiles-l2-same-on-all-arb-chains + vm.assume(addr < address(0x0000000000000000000000000000000000000064) || addr > address(0x0000000000000000000000000000000000000068)); + } else if (chainId == 43114 || chainId == 43113) { + // https://github.com/ava-labs/subnet-evm/blob/47c03fd007ecaa6de2c52ea081596e0a88401f58/precompile/params.go#L18-L59 + vm.assume(addr < address(0x0100000000000000000000000000000000000000) || addr > address(0x01000000000000000000000000000000000000ff)); + vm.assume(addr < address(0x0200000000000000000000000000000000000000) || addr > address(0x02000000000000000000000000000000000000FF)); + vm.assume(addr < address(0x0300000000000000000000000000000000000000) || addr > address(0x03000000000000000000000000000000000000Ff)); + } + // forgefmt: disable-end + } + + function readEIP1559ScriptArtifact(string memory path) + internal + view + virtual + returns (EIP1559ScriptArtifact memory) + { + string memory data = vm.readFile(path); + bytes memory parsedData = vm.parseJson(data); + RawEIP1559ScriptArtifact memory rawArtifact = abi.decode(parsedData, (RawEIP1559ScriptArtifact)); + EIP1559ScriptArtifact memory artifact; + artifact.libraries = rawArtifact.libraries; + artifact.path = rawArtifact.path; + artifact.timestamp = rawArtifact.timestamp; + artifact.pending = rawArtifact.pending; + artifact.txReturns = rawArtifact.txReturns; + artifact.receipts = rawToConvertedReceipts(rawArtifact.receipts); + artifact.transactions = rawToConvertedEIPTx1559s(rawArtifact.transactions); + return artifact; + } + + function rawToConvertedEIPTx1559s(RawTx1559[] memory rawTxs) internal pure virtual returns (Tx1559[] memory) { + Tx1559[] memory txs = new Tx1559[](rawTxs.length); + for (uint256 i; i < rawTxs.length; i++) { + txs[i] = rawToConvertedEIPTx1559(rawTxs[i]); + } + return txs; + } + + function rawToConvertedEIPTx1559(RawTx1559 memory rawTx) internal pure virtual returns (Tx1559 memory) { + Tx1559 memory transaction; + transaction.arguments = rawTx.arguments; + transaction.contractName = rawTx.contractName; + transaction.functionSig = rawTx.functionSig; + transaction.hash = rawTx.hash; + transaction.txDetail = rawToConvertedEIP1559Detail(rawTx.txDetail); + transaction.opcode = rawTx.opcode; + return transaction; + } + + function rawToConvertedEIP1559Detail(RawTx1559Detail memory rawDetail) + internal + pure + virtual + returns (Tx1559Detail memory) + { + Tx1559Detail memory txDetail; + txDetail.data = rawDetail.data; + txDetail.from = rawDetail.from; + txDetail.to = rawDetail.to; + txDetail.nonce = _bytesToUint(rawDetail.nonce); + txDetail.txType = _bytesToUint(rawDetail.txType); + txDetail.value = _bytesToUint(rawDetail.value); + txDetail.gas = _bytesToUint(rawDetail.gas); + txDetail.accessList = rawDetail.accessList; + return txDetail; + } + + function readTx1559s(string memory path) internal view virtual returns (Tx1559[] memory) { + string memory deployData = vm.readFile(path); + bytes memory parsedDeployData = vm.parseJson(deployData, ".transactions"); + RawTx1559[] memory rawTxs = abi.decode(parsedDeployData, (RawTx1559[])); + return rawToConvertedEIPTx1559s(rawTxs); + } + + function readTx1559(string memory path, uint256 index) internal view virtual returns (Tx1559 memory) { + string memory deployData = vm.readFile(path); + string memory key = string(abi.encodePacked(".transactions[", vm.toString(index), "]")); + bytes memory parsedDeployData = vm.parseJson(deployData, key); + RawTx1559 memory rawTx = abi.decode(parsedDeployData, (RawTx1559)); + return rawToConvertedEIPTx1559(rawTx); + } + + // Analogous to readTransactions, but for receipts. + function readReceipts(string memory path) internal view virtual returns (Receipt[] memory) { + string memory deployData = vm.readFile(path); + bytes memory parsedDeployData = vm.parseJson(deployData, ".receipts"); + RawReceipt[] memory rawReceipts = abi.decode(parsedDeployData, (RawReceipt[])); + return rawToConvertedReceipts(rawReceipts); + } + + function readReceipt(string memory path, uint256 index) internal view virtual returns (Receipt memory) { + string memory deployData = vm.readFile(path); + string memory key = string(abi.encodePacked(".receipts[", vm.toString(index), "]")); + bytes memory parsedDeployData = vm.parseJson(deployData, key); + RawReceipt memory rawReceipt = abi.decode(parsedDeployData, (RawReceipt)); + return rawToConvertedReceipt(rawReceipt); + } + + function rawToConvertedReceipts(RawReceipt[] memory rawReceipts) internal pure virtual returns (Receipt[] memory) { + Receipt[] memory receipts = new Receipt[](rawReceipts.length); + for (uint256 i; i < rawReceipts.length; i++) { + receipts[i] = rawToConvertedReceipt(rawReceipts[i]); + } + return receipts; + } + + function rawToConvertedReceipt(RawReceipt memory rawReceipt) internal pure virtual returns (Receipt memory) { + Receipt memory receipt; + receipt.blockHash = rawReceipt.blockHash; + receipt.to = rawReceipt.to; + receipt.from = rawReceipt.from; + receipt.contractAddress = rawReceipt.contractAddress; + receipt.effectiveGasPrice = _bytesToUint(rawReceipt.effectiveGasPrice); + receipt.cumulativeGasUsed = _bytesToUint(rawReceipt.cumulativeGasUsed); + receipt.gasUsed = _bytesToUint(rawReceipt.gasUsed); + receipt.status = _bytesToUint(rawReceipt.status); + receipt.transactionIndex = _bytesToUint(rawReceipt.transactionIndex); + receipt.blockNumber = _bytesToUint(rawReceipt.blockNumber); + receipt.logs = rawToConvertedReceiptLogs(rawReceipt.logs); + receipt.logsBloom = rawReceipt.logsBloom; + receipt.transactionHash = rawReceipt.transactionHash; + return receipt; + } + + function rawToConvertedReceiptLogs(RawReceiptLog[] memory rawLogs) + internal + pure + virtual + returns (ReceiptLog[] memory) + { + ReceiptLog[] memory logs = new ReceiptLog[](rawLogs.length); + for (uint256 i; i < rawLogs.length; i++) { + logs[i].logAddress = rawLogs[i].logAddress; + logs[i].blockHash = rawLogs[i].blockHash; + logs[i].blockNumber = _bytesToUint(rawLogs[i].blockNumber); + logs[i].data = rawLogs[i].data; + logs[i].logIndex = _bytesToUint(rawLogs[i].logIndex); + logs[i].topics = rawLogs[i].topics; + logs[i].transactionIndex = _bytesToUint(rawLogs[i].transactionIndex); + logs[i].transactionLogIndex = _bytesToUint(rawLogs[i].transactionLogIndex); + logs[i].removed = rawLogs[i].removed; + } + return logs; + } + + // Deploy a contract by fetching the contract bytecode from + // the artifacts directory + // e.g. `deployCode(code, abi.encode(arg1,arg2,arg3))` + function deployCode(string memory what, bytes memory args) internal virtual returns (address addr) { + bytes memory bytecode = abi.encodePacked(vm.getCode(what), args); + /// @solidity memory-safe-assembly + assembly { + addr := create(0, add(bytecode, 0x20), mload(bytecode)) + } + + require(addr != address(0), "StdCheats deployCode(string,bytes): Deployment failed."); + } + + function deployCode(string memory what) internal virtual returns (address addr) { + bytes memory bytecode = vm.getCode(what); + /// @solidity memory-safe-assembly + assembly { + addr := create(0, add(bytecode, 0x20), mload(bytecode)) + } + + require(addr != address(0), "StdCheats deployCode(string): Deployment failed."); + } + + /// @dev deploy contract with value on construction + function deployCode(string memory what, bytes memory args, uint256 val) internal virtual returns (address addr) { + bytes memory bytecode = abi.encodePacked(vm.getCode(what), args); + /// @solidity memory-safe-assembly + assembly { + addr := create(val, add(bytecode, 0x20), mload(bytecode)) + } + + require(addr != address(0), "StdCheats deployCode(string,bytes,uint256): Deployment failed."); + } + + function deployCode(string memory what, uint256 val) internal virtual returns (address addr) { + bytes memory bytecode = vm.getCode(what); + /// @solidity memory-safe-assembly + assembly { + addr := create(val, add(bytecode, 0x20), mload(bytecode)) + } + + require(addr != address(0), "StdCheats deployCode(string,uint256): Deployment failed."); + } + + // creates a labeled address and the corresponding private key + function makeAddrAndKey(string memory name) internal virtual returns (address addr, uint256 privateKey) { + privateKey = uint256(keccak256(abi.encodePacked(name))); + addr = vm.addr(privateKey); + vm.label(addr, name); + } + + // creates a labeled address + function makeAddr(string memory name) internal virtual returns (address addr) { + (addr,) = makeAddrAndKey(name); + } + + function deriveRememberKey(string memory mnemonic, uint32 index) + internal + virtual + returns (address who, uint256 privateKey) + { + privateKey = vm.deriveKey(mnemonic, index); + who = vm.rememberKey(privateKey); + } + + function _bytesToUint(bytes memory b) private pure returns (uint256) { + require(b.length <= 32, "StdCheats _bytesToUint(bytes): Bytes length exceeds 32."); + return abi.decode(abi.encodePacked(new bytes(32 - b.length), b), (uint256)); + } + + function isFork() internal view virtual returns (bool status) { + try vm.activeFork() { + status = true; + } catch (bytes memory) {} + } + + modifier skipWhenForking() { + if (!isFork()) { + _; + } + } + + modifier skipWhenNotForking() { + if (isFork()) { + _; + } + } + + modifier noGasMetering() { + vm.pauseGasMetering(); + // To prevent turning gas monitoring back on with nested functions that use this modifier, + // we check if gasMetering started in the off position. If it did, we don't want to turn + // it back on until we exit the top level function that used the modifier + // + // i.e. funcA() noGasMetering { funcB() }, where funcB has noGasMetering as well. + // funcA will have `gasStartedOff` as false, funcB will have it as true, + // so we only turn metering back on at the end of the funcA + bool gasStartedOff = gasMeteringOff; + gasMeteringOff = true; + + _; + + // if gas metering was on when this modifier was called, turn it back on at the end + if (!gasStartedOff) { + gasMeteringOff = false; + vm.resumeGasMetering(); + } + } + + // a cheat for fuzzing addresses that are payable only + // see https://github.com/foundry-rs/foundry/issues/3631 + function assumePayable(address addr) internal virtual { + (bool success,) = payable(addr).call{value: 0}(""); + vm.assume(success); + } +} + +// Wrappers around cheatcodes to avoid footguns +abstract contract StdCheats is StdCheatsSafe { + using stdStorage for StdStorage; + + StdStorage private stdstore; + Vm private constant vm = Vm(address(uint160(uint256(keccak256("hevm cheat code"))))); + + // Skip forward or rewind time by the specified number of seconds + function skip(uint256 time) internal virtual { + vm.warp(block.timestamp + time); + } + + function rewind(uint256 time) internal virtual { + vm.warp(block.timestamp - time); + } + + // Setup a prank from an address that has some ether + function hoax(address who) internal virtual { + vm.deal(who, 1 << 128); + vm.prank(who); + } + + function hoax(address who, uint256 give) internal virtual { + vm.deal(who, give); + vm.prank(who); + } + + function hoax(address who, address origin) internal virtual { + vm.deal(who, 1 << 128); + vm.prank(who, origin); + } + + function hoax(address who, address origin, uint256 give) internal virtual { + vm.deal(who, give); + vm.prank(who, origin); + } + + // Start perpetual prank from an address that has some ether + function startHoax(address who) internal virtual { + vm.deal(who, 1 << 128); + vm.startPrank(who); + } + + function startHoax(address who, uint256 give) internal virtual { + vm.deal(who, give); + vm.startPrank(who); + } + + // Start perpetual prank from an address that has some ether + // tx.origin is set to the origin parameter + function startHoax(address who, address origin) internal virtual { + vm.deal(who, 1 << 128); + vm.startPrank(who, origin); + } + + function startHoax(address who, address origin, uint256 give) internal virtual { + vm.deal(who, give); + vm.startPrank(who, origin); + } + + function changePrank(address who) internal virtual { + vm.stopPrank(); + vm.startPrank(who); + } + + // The same as Vm's `deal` + // Use the alternative signature for ERC20 tokens + function deal(address to, uint256 give) internal virtual { + vm.deal(to, give); + } + + // Set the balance of an account for any ERC20 token + // Use the alternative signature to update `totalSupply` + function deal(address token, address to, uint256 give) internal virtual { + deal(token, to, give, false); + } + + function deal(address token, address to, uint256 give, bool adjust) internal virtual { + // get current balance + (, bytes memory balData) = token.call(abi.encodeWithSelector(0x70a08231, to)); + uint256 prevBal = abi.decode(balData, (uint256)); + + // update balance + stdstore.target(token).sig(0x70a08231).with_key(to).checked_write(give); + + // update total supply + if (adjust) { + (, bytes memory totSupData) = token.call(abi.encodeWithSelector(0x18160ddd)); + uint256 totSup = abi.decode(totSupData, (uint256)); + if (give < prevBal) { + totSup -= (prevBal - give); + } else { + totSup += (give - prevBal); + } + stdstore.target(token).sig(0x18160ddd).checked_write(totSup); + } + } +} diff --git a/lib/forge-std/src/StdError.sol b/lib/forge-std/src/StdError.sol new file mode 100644 index 0000000..a302191 --- /dev/null +++ b/lib/forge-std/src/StdError.sol @@ -0,0 +1,15 @@ +// SPDX-License-Identifier: MIT +// Panics work for versions >=0.8.0, but we lowered the pragma to make this compatible with Test +pragma solidity >=0.6.2 <0.9.0; + +library stdError { + bytes public constant assertionError = abi.encodeWithSignature("Panic(uint256)", 0x01); + bytes public constant arithmeticError = abi.encodeWithSignature("Panic(uint256)", 0x11); + bytes public constant divisionError = abi.encodeWithSignature("Panic(uint256)", 0x12); + bytes public constant enumConversionError = abi.encodeWithSignature("Panic(uint256)", 0x21); + bytes public constant encodeStorageError = abi.encodeWithSignature("Panic(uint256)", 0x22); + bytes public constant popError = abi.encodeWithSignature("Panic(uint256)", 0x31); + bytes public constant indexOOBError = abi.encodeWithSignature("Panic(uint256)", 0x32); + bytes public constant memOverflowError = abi.encodeWithSignature("Panic(uint256)", 0x41); + bytes public constant zeroVarError = abi.encodeWithSignature("Panic(uint256)", 0x51); +} diff --git a/lib/forge-std/src/StdJson.sol b/lib/forge-std/src/StdJson.sol new file mode 100644 index 0000000..2dee471 --- /dev/null +++ b/lib/forge-std/src/StdJson.sol @@ -0,0 +1,179 @@ +// SPDX-License-Identifier: MIT +pragma solidity >=0.6.0 <0.9.0; + +pragma experimental ABIEncoderV2; + +import {VmSafe} from "./Vm.sol"; + +// Helpers for parsing and writing JSON files +// To parse: +// ``` +// using stdJson for string; +// string memory json = vm.readFile("some_peth"); +// json.parseUint(""); +// ``` +// To write: +// ``` +// using stdJson for string; +// string memory json = "deploymentArtifact"; +// Contract contract = new Contract(); +// json.serialize("contractAddress", address(contract)); +// json = json.serialize("deploymentTimes", uint(1)); +// // store the stringified JSON to the 'json' variable we have been using as a key +// // as we won't need it any longer +// string memory json2 = "finalArtifact"; +// string memory final = json2.serialize("depArtifact", json); +// final.write(""); +// ``` + +library stdJson { + VmSafe private constant vm = VmSafe(address(uint160(uint256(keccak256("hevm cheat code"))))); + + function parseRaw(string memory json, string memory key) internal pure returns (bytes memory) { + return vm.parseJson(json, key); + } + + function readUint(string memory json, string memory key) internal pure returns (uint256) { + return abi.decode(vm.parseJson(json, key), (uint256)); + } + + function readUintArray(string memory json, string memory key) internal pure returns (uint256[] memory) { + return abi.decode(vm.parseJson(json, key), (uint256[])); + } + + function readInt(string memory json, string memory key) internal pure returns (int256) { + return abi.decode(vm.parseJson(json, key), (int256)); + } + + function readIntArray(string memory json, string memory key) internal pure returns (int256[] memory) { + return abi.decode(vm.parseJson(json, key), (int256[])); + } + + function readBytes32(string memory json, string memory key) internal pure returns (bytes32) { + return abi.decode(vm.parseJson(json, key), (bytes32)); + } + + function readBytes32Array(string memory json, string memory key) internal pure returns (bytes32[] memory) { + return abi.decode(vm.parseJson(json, key), (bytes32[])); + } + + function readString(string memory json, string memory key) internal pure returns (string memory) { + return abi.decode(vm.parseJson(json, key), (string)); + } + + function readStringArray(string memory json, string memory key) internal pure returns (string[] memory) { + return abi.decode(vm.parseJson(json, key), (string[])); + } + + function readAddress(string memory json, string memory key) internal pure returns (address) { + return abi.decode(vm.parseJson(json, key), (address)); + } + + function readAddressArray(string memory json, string memory key) internal pure returns (address[] memory) { + return abi.decode(vm.parseJson(json, key), (address[])); + } + + function readBool(string memory json, string memory key) internal pure returns (bool) { + return abi.decode(vm.parseJson(json, key), (bool)); + } + + function readBoolArray(string memory json, string memory key) internal pure returns (bool[] memory) { + return abi.decode(vm.parseJson(json, key), (bool[])); + } + + function readBytes(string memory json, string memory key) internal pure returns (bytes memory) { + return abi.decode(vm.parseJson(json, key), (bytes)); + } + + function readBytesArray(string memory json, string memory key) internal pure returns (bytes[] memory) { + return abi.decode(vm.parseJson(json, key), (bytes[])); + } + + function serialize(string memory jsonKey, string memory key, bool value) internal returns (string memory) { + return vm.serializeBool(jsonKey, key, value); + } + + function serialize(string memory jsonKey, string memory key, bool[] memory value) + internal + returns (string memory) + { + return vm.serializeBool(jsonKey, key, value); + } + + function serialize(string memory jsonKey, string memory key, uint256 value) internal returns (string memory) { + return vm.serializeUint(jsonKey, key, value); + } + + function serialize(string memory jsonKey, string memory key, uint256[] memory value) + internal + returns (string memory) + { + return vm.serializeUint(jsonKey, key, value); + } + + function serialize(string memory jsonKey, string memory key, int256 value) internal returns (string memory) { + return vm.serializeInt(jsonKey, key, value); + } + + function serialize(string memory jsonKey, string memory key, int256[] memory value) + internal + returns (string memory) + { + return vm.serializeInt(jsonKey, key, value); + } + + function serialize(string memory jsonKey, string memory key, address value) internal returns (string memory) { + return vm.serializeAddress(jsonKey, key, value); + } + + function serialize(string memory jsonKey, string memory key, address[] memory value) + internal + returns (string memory) + { + return vm.serializeAddress(jsonKey, key, value); + } + + function serialize(string memory jsonKey, string memory key, bytes32 value) internal returns (string memory) { + return vm.serializeBytes32(jsonKey, key, value); + } + + function serialize(string memory jsonKey, string memory key, bytes32[] memory value) + internal + returns (string memory) + { + return vm.serializeBytes32(jsonKey, key, value); + } + + function serialize(string memory jsonKey, string memory key, bytes memory value) internal returns (string memory) { + return vm.serializeBytes(jsonKey, key, value); + } + + function serialize(string memory jsonKey, string memory key, bytes[] memory value) + internal + returns (string memory) + { + return vm.serializeBytes(jsonKey, key, value); + } + + function serialize(string memory jsonKey, string memory key, string memory value) + internal + returns (string memory) + { + return vm.serializeString(jsonKey, key, value); + } + + function serialize(string memory jsonKey, string memory key, string[] memory value) + internal + returns (string memory) + { + return vm.serializeString(jsonKey, key, value); + } + + function write(string memory jsonKey, string memory path) internal { + vm.writeJson(jsonKey, path); + } + + function write(string memory jsonKey, string memory path, string memory valueKey) internal { + vm.writeJson(jsonKey, path, valueKey); + } +} diff --git a/lib/forge-std/src/StdMath.sol b/lib/forge-std/src/StdMath.sol new file mode 100644 index 0000000..459523b --- /dev/null +++ b/lib/forge-std/src/StdMath.sol @@ -0,0 +1,43 @@ +// SPDX-License-Identifier: MIT +pragma solidity >=0.6.2 <0.9.0; + +library stdMath { + int256 private constant INT256_MIN = -57896044618658097711785492504343953926634992332820282019728792003956564819968; + + function abs(int256 a) internal pure returns (uint256) { + // Required or it will fail when `a = type(int256).min` + if (a == INT256_MIN) { + return 57896044618658097711785492504343953926634992332820282019728792003956564819968; + } + + return uint256(a > 0 ? a : -a); + } + + function delta(uint256 a, uint256 b) internal pure returns (uint256) { + return a > b ? a - b : b - a; + } + + function delta(int256 a, int256 b) internal pure returns (uint256) { + // a and b are of the same sign + // this works thanks to two's complement, the left-most bit is the sign bit + if ((a ^ b) > -1) { + return delta(abs(a), abs(b)); + } + + // a and b are of opposite signs + return abs(a) + abs(b); + } + + function percentDelta(uint256 a, uint256 b) internal pure returns (uint256) { + uint256 absDelta = delta(a, b); + + return absDelta * 1e18 / b; + } + + function percentDelta(int256 a, int256 b) internal pure returns (uint256) { + uint256 absDelta = delta(a, b); + uint256 absB = abs(b); + + return absDelta * 1e18 / absB; + } +} diff --git a/lib/forge-std/src/StdStorage.sol b/lib/forge-std/src/StdStorage.sol new file mode 100644 index 0000000..73a5ceb --- /dev/null +++ b/lib/forge-std/src/StdStorage.sol @@ -0,0 +1,327 @@ +// SPDX-License-Identifier: MIT +pragma solidity >=0.6.2 <0.9.0; + +import {Vm} from "./Vm.sol"; + +struct StdStorage { + mapping(address => mapping(bytes4 => mapping(bytes32 => uint256))) slots; + mapping(address => mapping(bytes4 => mapping(bytes32 => bool))) finds; + bytes32[] _keys; + bytes4 _sig; + uint256 _depth; + address _target; + bytes32 _set; +} + +library stdStorageSafe { + event SlotFound(address who, bytes4 fsig, bytes32 keysHash, uint256 slot); + event WARNING_UninitedSlot(address who, uint256 slot); + + Vm private constant vm = Vm(address(uint160(uint256(keccak256("hevm cheat code"))))); + + function sigs(string memory sigStr) internal pure returns (bytes4) { + return bytes4(keccak256(bytes(sigStr))); + } + + /// @notice find an arbitrary storage slot given a function sig, input data, address of the contract and a value to check against + // slot complexity: + // if flat, will be bytes32(uint256(uint)); + // if map, will be keccak256(abi.encode(key, uint(slot))); + // if deep map, will be keccak256(abi.encode(key1, keccak256(abi.encode(key0, uint(slot))))); + // if map struct, will be bytes32(uint256(keccak256(abi.encode(key1, keccak256(abi.encode(key0, uint(slot)))))) + structFieldDepth); + function find(StdStorage storage self) internal returns (uint256) { + address who = self._target; + bytes4 fsig = self._sig; + uint256 field_depth = self._depth; + bytes32[] memory ins = self._keys; + + // calldata to test against + if (self.finds[who][fsig][keccak256(abi.encodePacked(ins, field_depth))]) { + return self.slots[who][fsig][keccak256(abi.encodePacked(ins, field_depth))]; + } + bytes memory cald = abi.encodePacked(fsig, flatten(ins)); + vm.record(); + bytes32 fdat; + { + (, bytes memory rdat) = who.staticcall(cald); + fdat = bytesToBytes32(rdat, 32 * field_depth); + } + + (bytes32[] memory reads,) = vm.accesses(address(who)); + if (reads.length == 1) { + bytes32 curr = vm.load(who, reads[0]); + if (curr == bytes32(0)) { + emit WARNING_UninitedSlot(who, uint256(reads[0])); + } + if (fdat != curr) { + require( + false, + "stdStorage find(StdStorage): Packed slot. This would cause dangerous overwriting and currently isn't supported." + ); + } + emit SlotFound(who, fsig, keccak256(abi.encodePacked(ins, field_depth)), uint256(reads[0])); + self.slots[who][fsig][keccak256(abi.encodePacked(ins, field_depth))] = uint256(reads[0]); + self.finds[who][fsig][keccak256(abi.encodePacked(ins, field_depth))] = true; + } else if (reads.length > 1) { + for (uint256 i = 0; i < reads.length; i++) { + bytes32 prev = vm.load(who, reads[i]); + if (prev == bytes32(0)) { + emit WARNING_UninitedSlot(who, uint256(reads[i])); + } + // store + vm.store(who, reads[i], bytes32(hex"1337")); + bool success; + bytes memory rdat; + { + (success, rdat) = who.staticcall(cald); + fdat = bytesToBytes32(rdat, 32 * field_depth); + } + + if (success && fdat == bytes32(hex"1337")) { + // we found which of the slots is the actual one + emit SlotFound(who, fsig, keccak256(abi.encodePacked(ins, field_depth)), uint256(reads[i])); + self.slots[who][fsig][keccak256(abi.encodePacked(ins, field_depth))] = uint256(reads[i]); + self.finds[who][fsig][keccak256(abi.encodePacked(ins, field_depth))] = true; + vm.store(who, reads[i], prev); + break; + } + vm.store(who, reads[i], prev); + } + } else { + revert("stdStorage find(StdStorage): No storage use detected for target."); + } + + require( + self.finds[who][fsig][keccak256(abi.encodePacked(ins, field_depth))], + "stdStorage find(StdStorage): Slot(s) not found." + ); + + delete self._target; + delete self._sig; + delete self._keys; + delete self._depth; + + return self.slots[who][fsig][keccak256(abi.encodePacked(ins, field_depth))]; + } + + function target(StdStorage storage self, address _target) internal returns (StdStorage storage) { + self._target = _target; + return self; + } + + function sig(StdStorage storage self, bytes4 _sig) internal returns (StdStorage storage) { + self._sig = _sig; + return self; + } + + function sig(StdStorage storage self, string memory _sig) internal returns (StdStorage storage) { + self._sig = sigs(_sig); + return self; + } + + function with_key(StdStorage storage self, address who) internal returns (StdStorage storage) { + self._keys.push(bytes32(uint256(uint160(who)))); + return self; + } + + function with_key(StdStorage storage self, uint256 amt) internal returns (StdStorage storage) { + self._keys.push(bytes32(amt)); + return self; + } + + function with_key(StdStorage storage self, bytes32 key) internal returns (StdStorage storage) { + self._keys.push(key); + return self; + } + + function depth(StdStorage storage self, uint256 _depth) internal returns (StdStorage storage) { + self._depth = _depth; + return self; + } + + function read(StdStorage storage self) private returns (bytes memory) { + address t = self._target; + uint256 s = find(self); + return abi.encode(vm.load(t, bytes32(s))); + } + + function read_bytes32(StdStorage storage self) internal returns (bytes32) { + return abi.decode(read(self), (bytes32)); + } + + function read_bool(StdStorage storage self) internal returns (bool) { + int256 v = read_int(self); + if (v == 0) return false; + if (v == 1) return true; + revert("stdStorage read_bool(StdStorage): Cannot decode. Make sure you are reading a bool."); + } + + function read_address(StdStorage storage self) internal returns (address) { + return abi.decode(read(self), (address)); + } + + function read_uint(StdStorage storage self) internal returns (uint256) { + return abi.decode(read(self), (uint256)); + } + + function read_int(StdStorage storage self) internal returns (int256) { + return abi.decode(read(self), (int256)); + } + + function bytesToBytes32(bytes memory b, uint256 offset) private pure returns (bytes32) { + bytes32 out; + + uint256 max = b.length > 32 ? 32 : b.length; + for (uint256 i = 0; i < max; i++) { + out |= bytes32(b[offset + i] & 0xFF) >> (i * 8); + } + return out; + } + + function flatten(bytes32[] memory b) private pure returns (bytes memory) { + bytes memory result = new bytes(b.length * 32); + for (uint256 i = 0; i < b.length; i++) { + bytes32 k = b[i]; + /// @solidity memory-safe-assembly + assembly { + mstore(add(result, add(32, mul(32, i))), k) + } + } + + return result; + } +} + +library stdStorage { + Vm private constant vm = Vm(address(uint160(uint256(keccak256("hevm cheat code"))))); + + function sigs(string memory sigStr) internal pure returns (bytes4) { + return stdStorageSafe.sigs(sigStr); + } + + function find(StdStorage storage self) internal returns (uint256) { + return stdStorageSafe.find(self); + } + + function target(StdStorage storage self, address _target) internal returns (StdStorage storage) { + return stdStorageSafe.target(self, _target); + } + + function sig(StdStorage storage self, bytes4 _sig) internal returns (StdStorage storage) { + return stdStorageSafe.sig(self, _sig); + } + + function sig(StdStorage storage self, string memory _sig) internal returns (StdStorage storage) { + return stdStorageSafe.sig(self, _sig); + } + + function with_key(StdStorage storage self, address who) internal returns (StdStorage storage) { + return stdStorageSafe.with_key(self, who); + } + + function with_key(StdStorage storage self, uint256 amt) internal returns (StdStorage storage) { + return stdStorageSafe.with_key(self, amt); + } + + function with_key(StdStorage storage self, bytes32 key) internal returns (StdStorage storage) { + return stdStorageSafe.with_key(self, key); + } + + function depth(StdStorage storage self, uint256 _depth) internal returns (StdStorage storage) { + return stdStorageSafe.depth(self, _depth); + } + + function checked_write(StdStorage storage self, address who) internal { + checked_write(self, bytes32(uint256(uint160(who)))); + } + + function checked_write(StdStorage storage self, uint256 amt) internal { + checked_write(self, bytes32(amt)); + } + + function checked_write(StdStorage storage self, bool write) internal { + bytes32 t; + /// @solidity memory-safe-assembly + assembly { + t := write + } + checked_write(self, t); + } + + function checked_write(StdStorage storage self, bytes32 set) internal { + address who = self._target; + bytes4 fsig = self._sig; + uint256 field_depth = self._depth; + bytes32[] memory ins = self._keys; + + bytes memory cald = abi.encodePacked(fsig, flatten(ins)); + if (!self.finds[who][fsig][keccak256(abi.encodePacked(ins, field_depth))]) { + find(self); + } + bytes32 slot = bytes32(self.slots[who][fsig][keccak256(abi.encodePacked(ins, field_depth))]); + + bytes32 fdat; + { + (, bytes memory rdat) = who.staticcall(cald); + fdat = bytesToBytes32(rdat, 32 * field_depth); + } + bytes32 curr = vm.load(who, slot); + + if (fdat != curr) { + require( + false, + "stdStorage find(StdStorage): Packed slot. This would cause dangerous overwriting and currently isn't supported." + ); + } + vm.store(who, slot, set); + delete self._target; + delete self._sig; + delete self._keys; + delete self._depth; + } + + function read_bytes32(StdStorage storage self) internal returns (bytes32) { + return stdStorageSafe.read_bytes32(self); + } + + function read_bool(StdStorage storage self) internal returns (bool) { + return stdStorageSafe.read_bool(self); + } + + function read_address(StdStorage storage self) internal returns (address) { + return stdStorageSafe.read_address(self); + } + + function read_uint(StdStorage storage self) internal returns (uint256) { + return stdStorageSafe.read_uint(self); + } + + function read_int(StdStorage storage self) internal returns (int256) { + return stdStorageSafe.read_int(self); + } + + // Private function so needs to be copied over + function bytesToBytes32(bytes memory b, uint256 offset) private pure returns (bytes32) { + bytes32 out; + + uint256 max = b.length > 32 ? 32 : b.length; + for (uint256 i = 0; i < max; i++) { + out |= bytes32(b[offset + i] & 0xFF) >> (i * 8); + } + return out; + } + + // Private function so needs to be copied over + function flatten(bytes32[] memory b) private pure returns (bytes memory) { + bytes memory result = new bytes(b.length * 32); + for (uint256 i = 0; i < b.length; i++) { + bytes32 k = b[i]; + /// @solidity memory-safe-assembly + assembly { + mstore(add(result, add(32, mul(32, i))), k) + } + } + + return result; + } +} diff --git a/lib/forge-std/src/StdUtils.sol b/lib/forge-std/src/StdUtils.sol new file mode 100644 index 0000000..a283e75 --- /dev/null +++ b/lib/forge-std/src/StdUtils.sol @@ -0,0 +1,123 @@ +// SPDX-License-Identifier: MIT +pragma solidity >=0.6.2 <0.9.0; + +// TODO Remove import. +import {VmSafe} from "./Vm.sol"; + +abstract contract StdUtils { + VmSafe private constant vm = VmSafe(address(uint160(uint256(keccak256("hevm cheat code"))))); + address private constant CONSOLE2_ADDRESS = 0x000000000000000000636F6e736F6c652e6c6f67; + + uint256 private constant INT256_MIN_ABS = + 57896044618658097711785492504343953926634992332820282019728792003956564819968; + uint256 private constant UINT256_MAX = + 115792089237316195423570985008687907853269984665640564039457584007913129639935; + + function _bound(uint256 x, uint256 min, uint256 max) internal pure virtual returns (uint256 result) { + require(min <= max, "StdUtils bound(uint256,uint256,uint256): Max is less than min."); + // If x is between min and max, return x directly. This is to ensure that dictionary values + // do not get shifted if the min is nonzero. More info: https://github.com/foundry-rs/forge-std/issues/188 + if (x >= min && x <= max) return x; + + uint256 size = max - min + 1; + + // If the value is 0, 1, 2, 3, warp that to min, min+1, min+2, min+3. Similarly for the UINT256_MAX side. + // This helps ensure coverage of the min/max values. + if (x <= 3 && size > x) return min + x; + if (x >= UINT256_MAX - 3 && size > UINT256_MAX - x) return max - (UINT256_MAX - x); + + // Otherwise, wrap x into the range [min, max], i.e. the range is inclusive. + if (x > max) { + uint256 diff = x - max; + uint256 rem = diff % size; + if (rem == 0) return max; + result = min + rem - 1; + } else if (x < min) { + uint256 diff = min - x; + uint256 rem = diff % size; + if (rem == 0) return min; + result = max - rem + 1; + } + } + + function bound(uint256 x, uint256 min, uint256 max) internal view virtual returns (uint256 result) { + result = _bound(x, min, max); + console2_log("Bound Result", result); + } + + function bound(int256 x, int256 min, int256 max) internal view virtual returns (int256 result) { + require(min <= max, "StdUtils bound(int256,int256,int256): Max is less than min."); + + // Shifting all int256 values to uint256 to use _bound function. The range of two types are: + // int256 : -(2**255) ~ (2**255 - 1) + // uint256: 0 ~ (2**256 - 1) + // So, add 2**255, INT256_MIN_ABS to the integer values. + // + // If the given integer value is -2**255, we cannot use `-uint256(-x)` because of the overflow. + // So, use `~uint256(x) + 1` instead. + uint256 _x = x < 0 ? (INT256_MIN_ABS - ~uint256(x) - 1) : (uint256(x) + INT256_MIN_ABS); + uint256 _min = min < 0 ? (INT256_MIN_ABS - ~uint256(min) - 1) : (uint256(min) + INT256_MIN_ABS); + uint256 _max = max < 0 ? (INT256_MIN_ABS - ~uint256(max) - 1) : (uint256(max) + INT256_MIN_ABS); + + uint256 y = _bound(_x, _min, _max); + + // To move it back to int256 value, subtract INT256_MIN_ABS at here. + result = y < INT256_MIN_ABS ? int256(~(INT256_MIN_ABS - y) + 1) : int256(y - INT256_MIN_ABS); + console2_log("Bound result", vm.toString(result)); + } + + /// @dev Compute the address a contract will be deployed at for a given deployer address and nonce + /// @notice adapated from Solmate implementation (https://github.com/Rari-Capital/solmate/blob/main/src/utils/LibRLP.sol) + function computeCreateAddress(address deployer, uint256 nonce) internal pure virtual returns (address) { + // forgefmt: disable-start + // The integer zero is treated as an empty byte string, and as a result it only has a length prefix, 0x80, computed via 0x80 + 0. + // A one byte integer uses its own value as its length prefix, there is no additional "0x80 + length" prefix that comes before it. + if (nonce == 0x00) return addressFromLast20Bytes(keccak256(abi.encodePacked(bytes1(0xd6), bytes1(0x94), deployer, bytes1(0x80)))); + if (nonce <= 0x7f) return addressFromLast20Bytes(keccak256(abi.encodePacked(bytes1(0xd6), bytes1(0x94), deployer, uint8(nonce)))); + + // Nonces greater than 1 byte all follow a consistent encoding scheme, where each value is preceded by a prefix of 0x80 + length. + if (nonce <= 2**8 - 1) return addressFromLast20Bytes(keccak256(abi.encodePacked(bytes1(0xd7), bytes1(0x94), deployer, bytes1(0x81), uint8(nonce)))); + if (nonce <= 2**16 - 1) return addressFromLast20Bytes(keccak256(abi.encodePacked(bytes1(0xd8), bytes1(0x94), deployer, bytes1(0x82), uint16(nonce)))); + if (nonce <= 2**24 - 1) return addressFromLast20Bytes(keccak256(abi.encodePacked(bytes1(0xd9), bytes1(0x94), deployer, bytes1(0x83), uint24(nonce)))); + // forgefmt: disable-end + + // More details about RLP encoding can be found here: https://eth.wiki/fundamentals/rlp + // 0xda = 0xc0 (short RLP prefix) + 0x16 (length of: 0x94 ++ proxy ++ 0x84 ++ nonce) + // 0x94 = 0x80 + 0x14 (0x14 = the length of an address, 20 bytes, in hex) + // 0x84 = 0x80 + 0x04 (0x04 = the bytes length of the nonce, 4 bytes, in hex) + // We assume nobody can have a nonce large enough to require more than 32 bytes. + return addressFromLast20Bytes( + keccak256(abi.encodePacked(bytes1(0xda), bytes1(0x94), deployer, bytes1(0x84), uint32(nonce))) + ); + } + + function computeCreate2Address(bytes32 salt, bytes32 initcodeHash, address deployer) + internal + pure + virtual + returns (address) + { + return addressFromLast20Bytes(keccak256(abi.encodePacked(bytes1(0xff), deployer, salt, initcodeHash))); + } + + function bytesToUint(bytes memory b) internal pure virtual returns (uint256) { + require(b.length <= 32, "StdUtils bytesToUint(bytes): Bytes length exceeds 32."); + return abi.decode(abi.encodePacked(new bytes(32 - b.length), b), (uint256)); + } + + function addressFromLast20Bytes(bytes32 bytesValue) private pure returns (address) { + return address(uint160(uint256(bytesValue))); + } + + // Used to prevent the compilation of console, which shortens the compilation time when console is not used elsewhere. + + function console2_log(string memory p0, uint256 p1) private view { + (bool status,) = address(CONSOLE2_ADDRESS).staticcall(abi.encodeWithSignature("log(string,uint256)", p0, p1)); + status; + } + + function console2_log(string memory p0, string memory p1) private view { + (bool status,) = address(CONSOLE2_ADDRESS).staticcall(abi.encodeWithSignature("log(string,string)", p0, p1)); + status; + } +} diff --git a/lib/forge-std/src/Test.sol b/lib/forge-std/src/Test.sol new file mode 100644 index 0000000..6c26230 --- /dev/null +++ b/lib/forge-std/src/Test.sol @@ -0,0 +1,28 @@ +// SPDX-License-Identifier: MIT +pragma solidity >=0.6.2 <0.9.0; + +// 💬 ABOUT +// Standard Library's default Test + +// 🧩 MODULES +import {console} from "./console.sol"; +import {console2} from "./console2.sol"; +import {StdAssertions} from "./StdAssertions.sol"; +import {StdChains} from "./StdChains.sol"; +import {StdCheats} from "./StdCheats.sol"; +import {stdError} from "./StdError.sol"; +import {stdJson} from "./StdJson.sol"; +import {stdMath} from "./StdMath.sol"; +import {StdStorage, stdStorage} from "./StdStorage.sol"; +import {StdUtils} from "./StdUtils.sol"; +import {Vm} from "./Vm.sol"; + +// 📦 BOILERPLATE +import {TestBase} from "./Base.sol"; +import {DSTest} from "ds-test/test.sol"; + +// ⭐️ TEST +abstract contract Test is DSTest, StdAssertions, StdChains, StdCheats, StdUtils, TestBase { +// Note: IS_TEST() must return true. +// Note: Must have failure system, https://github.com/dapphub/ds-test/blob/cd98eff28324bfac652e63a239a60632a761790b/src/test.sol#L39-L76. +} diff --git a/lib/forge-std/src/Vm.sol b/lib/forge-std/src/Vm.sol new file mode 100644 index 0000000..31ebd41 --- /dev/null +++ b/lib/forge-std/src/Vm.sol @@ -0,0 +1,405 @@ +// SPDX-License-Identifier: MIT +pragma solidity >=0.6.2 <0.9.0; + +pragma experimental ABIEncoderV2; + +// Cheatcodes are marked as view/pure/none using the following rules: +// 0. A call's observable behaviour includes its return value, logs, reverts and state writes, +// 1. If you can influence a later call's observable behaviour, you're neither `view` nor `pure (you are modifying some state be it the EVM, interpreter, filesystem, etc), +// 2. Otherwise if you can be influenced by an earlier call, or if reading some state, you're `view`, +// 3. Otherwise you're `pure`. + +interface VmSafe { + struct Log { + bytes32[] topics; + bytes data; + address emitter; + } + + struct Rpc { + string key; + string url; + } + + struct FsMetadata { + bool isDir; + bool isSymlink; + uint256 length; + bool readOnly; + uint256 modified; + uint256 accessed; + uint256 created; + } + + // Loads a storage slot from an address + function load(address target, bytes32 slot) external view returns (bytes32 data); + // Signs data + function sign(uint256 privateKey, bytes32 digest) external pure returns (uint8 v, bytes32 r, bytes32 s); + // Gets the address for a given private key + function addr(uint256 privateKey) external pure returns (address keyAddr); + // Gets the nonce of an account + function getNonce(address account) external view returns (uint64 nonce); + // Performs a foreign function call via the terminal + function ffi(string[] calldata commandInput) external returns (bytes memory result); + // Sets environment variables + function setEnv(string calldata name, string calldata value) external; + // Reads environment variables, (name) => (value) + function envBool(string calldata name) external view returns (bool value); + function envUint(string calldata name) external view returns (uint256 value); + function envInt(string calldata name) external view returns (int256 value); + function envAddress(string calldata name) external view returns (address value); + function envBytes32(string calldata name) external view returns (bytes32 value); + function envString(string calldata name) external view returns (string memory value); + function envBytes(string calldata name) external view returns (bytes memory value); + // Reads environment variables as arrays + function envBool(string calldata name, string calldata delim) external view returns (bool[] memory value); + function envUint(string calldata name, string calldata delim) external view returns (uint256[] memory value); + function envInt(string calldata name, string calldata delim) external view returns (int256[] memory value); + function envAddress(string calldata name, string calldata delim) external view returns (address[] memory value); + function envBytes32(string calldata name, string calldata delim) external view returns (bytes32[] memory value); + function envString(string calldata name, string calldata delim) external view returns (string[] memory value); + function envBytes(string calldata name, string calldata delim) external view returns (bytes[] memory value); + // Read environment variables with default value + function envOr(string calldata name, bool defaultValue) external returns (bool value); + function envOr(string calldata name, uint256 defaultValue) external returns (uint256 value); + function envOr(string calldata name, int256 defaultValue) external returns (int256 value); + function envOr(string calldata name, address defaultValue) external returns (address value); + function envOr(string calldata name, bytes32 defaultValue) external returns (bytes32 value); + function envOr(string calldata name, string calldata defaultValue) external returns (string memory value); + function envOr(string calldata name, bytes calldata defaultValue) external returns (bytes memory value); + // Read environment variables as arrays with default value + function envOr(string calldata name, string calldata delim, bool[] calldata defaultValue) + external + returns (bool[] memory value); + function envOr(string calldata name, string calldata delim, uint256[] calldata defaultValue) + external + returns (uint256[] memory value); + function envOr(string calldata name, string calldata delim, int256[] calldata defaultValue) + external + returns (int256[] memory value); + function envOr(string calldata name, string calldata delim, address[] calldata defaultValue) + external + returns (address[] memory value); + function envOr(string calldata name, string calldata delim, bytes32[] calldata defaultValue) + external + returns (bytes32[] memory value); + function envOr(string calldata name, string calldata delim, string[] calldata defaultValue) + external + returns (string[] memory value); + function envOr(string calldata name, string calldata delim, bytes[] calldata defaultValue) + external + returns (bytes[] memory value); + // Records all storage reads and writes + function record() external; + // Gets all accessed reads and write slot from a recording session, for a given address + function accesses(address target) external returns (bytes32[] memory readSlots, bytes32[] memory writeSlots); + // Gets the _creation_ bytecode from an artifact file. Takes in the relative path to the json file + function getCode(string calldata artifactPath) external view returns (bytes memory creationBytecode); + // Gets the _deployed_ bytecode from an artifact file. Takes in the relative path to the json file + function getDeployedCode(string calldata artifactPath) external view returns (bytes memory runtimeBytecode); + // Labels an address in call traces + function label(address account, string calldata newLabel) external; + // Using the address that calls the test contract, has the next call (at this call depth only) create a transaction that can later be signed and sent onchain + function broadcast() external; + // Has the next call (at this call depth only) create a transaction with the address provided as the sender that can later be signed and sent onchain + function broadcast(address signer) external; + // Has the next call (at this call depth only) create a transaction with the private key provided as the sender that can later be signed and sent onchain + function broadcast(uint256 privateKey) external; + // Using the address that calls the test contract, has all subsequent calls (at this call depth only) create transactions that can later be signed and sent onchain + function startBroadcast() external; + // Has all subsequent calls (at this call depth only) create transactions with the address provided that can later be signed and sent onchain + function startBroadcast(address signer) external; + // Has all subsequent calls (at this call depth only) create transactions with the private key provided that can later be signed and sent onchain + function startBroadcast(uint256 privateKey) external; + // Stops collecting onchain transactions + function stopBroadcast() external; + // Reads the entire content of file to string + function readFile(string calldata path) external view returns (string memory data); + // Reads the entire content of file as binary. Path is relative to the project root. + function readFileBinary(string calldata path) external view returns (bytes memory data); + // Get the path of the current project root + function projectRoot() external view returns (string memory path); + // Get the metadata for a file/directory + function fsMetadata(string calldata fileOrDir) external returns (FsMetadata memory metadata); + // Reads next line of file to string + function readLine(string calldata path) external view returns (string memory line); + // Writes data to file, creating a file if it does not exist, and entirely replacing its contents if it does. + function writeFile(string calldata path, string calldata data) external; + // Writes binary data to a file, creating a file if it does not exist, and entirely replacing its contents if it does. + // Path is relative to the project root. + function writeFileBinary(string calldata path, bytes calldata data) external; + // Writes line to file, creating a file if it does not exist. + function writeLine(string calldata path, string calldata data) external; + // Closes file for reading, resetting the offset and allowing to read it from beginning with readLine. + function closeFile(string calldata path) external; + // Removes file. This cheatcode will revert in the following situations, but is not limited to just these cases: + // - Path points to a directory. + // - The file doesn't exist. + // - The user lacks permissions to remove the file. + function removeFile(string calldata path) external; + // Convert values to a string + function toString(address value) external pure returns (string memory stringifiedValue); + function toString(bytes calldata value) external pure returns (string memory stringifiedValue); + function toString(bytes32 value) external pure returns (string memory stringifiedValue); + function toString(bool value) external pure returns (string memory stringifiedValue); + function toString(uint256 value) external pure returns (string memory stringifiedValue); + function toString(int256 value) external pure returns (string memory stringifiedValue); + // Convert values from a string + function parseBytes(string calldata stringifiedValue) external pure returns (bytes memory parsedValue); + function parseAddress(string calldata stringifiedValue) external pure returns (address parsedValue); + function parseUint(string calldata stringifiedValue) external pure returns (uint256 parsedValue); + function parseInt(string calldata stringifiedValue) external pure returns (int256 parsedValue); + function parseBytes32(string calldata stringifiedValue) external pure returns (bytes32 parsedValue); + function parseBool(string calldata stringifiedValue) external pure returns (bool parsedValue); + // Record all the transaction logs + function recordLogs() external; + // Gets all the recorded logs + function getRecordedLogs() external returns (Log[] memory logs); + // Derive a private key from a provided mnenomic string (or mnenomic file path) at the derivation path m/44'/60'/0'/0/{index} + function deriveKey(string calldata mnemonic, uint32 index) external pure returns (uint256 privateKey); + // Derive a private key from a provided mnenomic string (or mnenomic file path) at {derivationPath}{index} + function deriveKey(string calldata mnemonic, string calldata derivationPath, uint32 index) + external + pure + returns (uint256 privateKey); + // Adds a private key to the local forge wallet and returns the address + function rememberKey(uint256 privateKey) external returns (address keyAddr); + // + // parseJson + // + // ---- + // In case the returned value is a JSON object, it's encoded as a ABI-encoded tuple. As JSON objects + // don't have the notion of ordered, but tuples do, they JSON object is encoded with it's fields ordered in + // ALPHABETICAL order. That means that in order to successfully decode the tuple, we need to define a tuple that + // encodes the fields in the same order, which is alphabetical. In the case of Solidity structs, they are encoded + // as tuples, with the attributes in the order in which they are defined. + // For example: json = { 'a': 1, 'b': 0xa4tb......3xs} + // a: uint256 + // b: address + // To decode that json, we need to define a struct or a tuple as follows: + // struct json = { uint256 a; address b; } + // If we defined a json struct with the opposite order, meaning placing the address b first, it would try to + // decode the tuple in that order, and thus fail. + // ---- + // Given a string of JSON, return it as ABI-encoded + function parseJson(string calldata json, string calldata key) external pure returns (bytes memory abiEncodedData); + function parseJson(string calldata json) external pure returns (bytes memory abiEncodedData); + + // The following parseJson cheatcodes will do type coercion, for the type that they indicate. + // For example, parseJsonUint will coerce all values to a uint256. That includes stringified numbers '12' + // and hex numbers '0xEF'. + // Type coercion works ONLY for discrete values or arrays. That means that the key must return a value or array, not + // a JSON object. + function parseJsonUint(string calldata, string calldata) external returns (uint256); + function parseJsonUintArray(string calldata, string calldata) external returns (uint256[] memory); + function parseJsonInt(string calldata, string calldata) external returns (int256); + function parseJsonIntArray(string calldata, string calldata) external returns (int256[] memory); + function parseJsonBool(string calldata, string calldata) external returns (bool); + function parseJsonBoolArray(string calldata, string calldata) external returns (bool[] memory); + function parseJsonAddress(string calldata, string calldata) external returns (address); + function parseJsonAddressArray(string calldata, string calldata) external returns (address[] memory); + function parseJsonString(string calldata, string calldata) external returns (string memory); + function parseJsonStringArray(string calldata, string calldata) external returns (string[] memory); + function parseJsonBytes(string calldata, string calldata) external returns (bytes memory); + function parseJsonBytesArray(string calldata, string calldata) external returns (bytes[] memory); + function parseJsonBytes32(string calldata, string calldata) external returns (bytes32); + function parseJsonBytes32Array(string calldata, string calldata) external returns (bytes32[] memory); + + // Serialize a key and value to a JSON object stored in-memory that can be later written to a file + // It returns the stringified version of the specific JSON file up to that moment. + function serializeBool(string calldata objectKey, string calldata valueKey, bool value) + external + returns (string memory json); + function serializeUint(string calldata objectKey, string calldata valueKey, uint256 value) + external + returns (string memory json); + function serializeInt(string calldata objectKey, string calldata valueKey, int256 value) + external + returns (string memory json); + function serializeAddress(string calldata objectKey, string calldata valueKey, address value) + external + returns (string memory json); + function serializeBytes32(string calldata objectKey, string calldata valueKey, bytes32 value) + external + returns (string memory json); + function serializeString(string calldata objectKey, string calldata valueKey, string calldata value) + external + returns (string memory json); + function serializeBytes(string calldata objectKey, string calldata valueKey, bytes calldata value) + external + returns (string memory json); + + function serializeBool(string calldata objectKey, string calldata valueKey, bool[] calldata values) + external + returns (string memory json); + function serializeUint(string calldata objectKey, string calldata valueKey, uint256[] calldata values) + external + returns (string memory json); + function serializeInt(string calldata objectKey, string calldata valueKey, int256[] calldata values) + external + returns (string memory json); + function serializeAddress(string calldata objectKey, string calldata valueKey, address[] calldata values) + external + returns (string memory json); + function serializeBytes32(string calldata objectKey, string calldata valueKey, bytes32[] calldata values) + external + returns (string memory json); + function serializeString(string calldata objectKey, string calldata valueKey, string[] calldata values) + external + returns (string memory json); + function serializeBytes(string calldata objectKey, string calldata valueKey, bytes[] calldata values) + external + returns (string memory json); + + // + // writeJson + // + // ---- + // Write a serialized JSON object to a file. If the file exists, it will be overwritten. + // Let's assume we want to write the following JSON to a file: + // + // { "boolean": true, "number": 342, "object": { "title": "finally json serialization" } } + // + // ``` + // string memory json1 = "some key"; + // vm.serializeBool(json1, "boolean", true); + // vm.serializeBool(json1, "number", uint256(342)); + // json2 = "some other key"; + // string memory output = vm.serializeString(json2, "title", "finally json serialization"); + // string memory finalJson = vm.serialize(json1, "object", output); + // vm.writeJson(finalJson, "./output/example.json"); + // ``` + // The critical insight is that every invocation of serialization will return the stringified version of the JSON + // up to that point. That means we can construct arbitrary JSON objects and then use the return stringified version + // to serialize them as values to another JSON object. + // + // json1 and json2 are simply keys used by the backend to keep track of the objects. So vm.serializeJson(json1,..) + // will find the object in-memory that is keyed by "some key". + function writeJson(string calldata json, string calldata path) external; + // Write a serialized JSON object to an **existing** JSON file, replacing a value with key = + // This is useful to replace a specific value of a JSON file, without having to parse the entire thing + function writeJson(string calldata json, string calldata path, string calldata valueKey) external; + // Returns the RPC url for the given alias + function rpcUrl(string calldata rpcAlias) external view returns (string memory json); + // Returns all rpc urls and their aliases `[alias, url][]` + function rpcUrls() external view returns (string[2][] memory urls); + // Returns all rpc urls and their aliases as structs. + function rpcUrlStructs() external view returns (Rpc[] memory urls); + // If the condition is false, discard this run's fuzz inputs and generate new ones. + function assume(bool condition) external pure; + // Pauses gas metering (i.e. gas usage is not counted). Noop if already paused. + function pauseGasMetering() external; + // Resumes gas metering (i.e. gas usage is counted again). Noop if already on. + function resumeGasMetering() external; +} + +interface Vm is VmSafe { + // Sets block.timestamp + function warp(uint256 newTimestamp) external; + // Sets block.height + function roll(uint256 newHeight) external; + // Sets block.basefee + function fee(uint256 newBasefee) external; + // Sets block.difficulty + function difficulty(uint256 newDifficulty) external; + // Sets block.chainid + function chainId(uint256 newChainId) external; + // Stores a value to an address' storage slot. + function store(address target, bytes32 slot, bytes32 value) external; + // Sets the nonce of an account; must be higher than the current nonce of the account + function setNonce(address account, uint64 newNonce) external; + // Sets the *next* call's msg.sender to be the input address + function prank(address msgSender) external; + // Sets all subsequent calls' msg.sender to be the input address until `stopPrank` is called + function startPrank(address msgSender) external; + // Sets the *next* call's msg.sender to be the input address, and the tx.origin to be the second input + function prank(address msgSender, address txOrigin) external; + // Sets all subsequent calls' msg.sender to be the input address until `stopPrank` is called, and the tx.origin to be the second input + function startPrank(address msgSender, address txOrigin) external; + // Resets subsequent calls' msg.sender to be `address(this)` + function stopPrank() external; + // Sets an address' balance + function deal(address account, uint256 newBalance) external; + // Sets an address' code + function etch(address target, bytes calldata newRuntimeBytecode) external; + // Expects an error on next call + function expectRevert(bytes calldata revertData) external; + function expectRevert(bytes4 revertData) external; + function expectRevert() external; + // Prepare an expected log with (bool checkTopic1, bool checkTopic2, bool checkTopic3, bool checkData). + // Call this function, then emit an event, then call a function. Internally after the call, we check if + // logs were emitted in the expected order with the expected topics and data (as specified by the booleans) + function expectEmit(bool checkTopic1, bool checkTopic2, bool checkTopic3, bool checkData) external; + function expectEmit(bool checkTopic1, bool checkTopic2, bool checkTopic3, bool checkData, address emitter) + external; + // Mocks a call to an address, returning specified data. + // Calldata can either be strict or a partial match, e.g. if you only + // pass a Solidity selector to the expected calldata, then the entire Solidity + // function will be mocked. + function mockCall(address callee, bytes calldata data, bytes calldata returnData) external; + // Mocks a call to an address with a specific msg.value, returning specified data. + // Calldata match takes precedence over msg.value in case of ambiguity. + function mockCall(address callee, uint256 msgValue, bytes calldata data, bytes calldata returnData) external; + // Clears all mocked calls + function clearMockedCalls() external; + // Expects a call to an address with the specified calldata. + // Calldata can either be a strict or a partial match + function expectCall(address callee, bytes calldata data) external; + // Expects a call to an address with the specified msg.value and calldata + function expectCall(address callee, uint256 msgValue, bytes calldata data) external; + // Sets block.coinbase + function coinbase(address newCoinbase) external; + // Snapshot the current state of the evm. + // Returns the id of the snapshot that was created. + // To revert a snapshot use `revertTo` + function snapshot() external returns (uint256 snapshotId); + // Revert the state of the EVM to a previous snapshot + // Takes the snapshot id to revert to. + // This deletes the snapshot and all snapshots taken after the given snapshot id. + function revertTo(uint256 snapshotId) external returns (bool success); + // Creates a new fork with the given endpoint and block and returns the identifier of the fork + function createFork(string calldata urlOrAlias, uint256 blockNumber) external returns (uint256 forkId); + // Creates a new fork with the given endpoint and the _latest_ block and returns the identifier of the fork + function createFork(string calldata urlOrAlias) external returns (uint256 forkId); + // Creates a new fork with the given endpoint and at the block the given transaction was mined in, replays all transaction mined in the block before the transaction, + // and returns the identifier of the fork + function createFork(string calldata urlOrAlias, bytes32 txHash) external returns (uint256 forkId); + // Creates _and_ also selects a new fork with the given endpoint and block and returns the identifier of the fork + function createSelectFork(string calldata urlOrAlias, uint256 blockNumber) external returns (uint256 forkId); + // Creates _and_ also selects new fork with the given endpoint and at the block the given transaction was mined in, replays all transaction mined in the block before + // the transaction, returns the identifier of the fork + function createSelectFork(string calldata urlOrAlias, bytes32 txHash) external returns (uint256 forkId); + // Creates _and_ also selects a new fork with the given endpoint and the latest block and returns the identifier of the fork + function createSelectFork(string calldata urlOrAlias) external returns (uint256 forkId); + // Takes a fork identifier created by `createFork` and sets the corresponding forked state as active. + function selectFork(uint256 forkId) external; + /// Returns the identifier of the currently active fork. Reverts if no fork is currently active. + function activeFork() external view returns (uint256 forkId); + // Updates the currently active fork to given block number + // This is similar to `roll` but for the currently active fork + function rollFork(uint256 blockNumber) external; + // Updates the currently active fork to given transaction + // this will `rollFork` with the number of the block the transaction was mined in and replays all transaction mined before it in the block + function rollFork(bytes32 txHash) external; + // Updates the given fork to given block number + function rollFork(uint256 forkId, uint256 blockNumber) external; + // Updates the given fork to block number of the given transaction and replays all transaction mined before it in the block + function rollFork(uint256 forkId, bytes32 txHash) external; + // Marks that the account(s) should use persistent storage across fork swaps in a multifork setup + // Meaning, changes made to the state of this account will be kept when switching forks + function makePersistent(address account) external; + function makePersistent(address account0, address account1) external; + function makePersistent(address account0, address account1, address account2) external; + function makePersistent(address[] calldata accounts) external; + // Revokes persistent status from the address, previously added via `makePersistent` + function revokePersistent(address account) external; + function revokePersistent(address[] calldata accounts) external; + // Returns true if the account is marked as persistent + function isPersistent(address account) external view returns (bool persistent); + // In forking mode, explicitly grant the given address cheatcode access + function allowCheatcodes(address account) external; + // Fetches the given transaction from the active fork and executes it on the current state + function transact(bytes32 txHash) external; + // Fetches the given transaction from the given fork and executes it on the current state + function transact(uint256 forkId, bytes32 txHash) external; +} diff --git a/lib/forge-std/src/console.sol b/lib/forge-std/src/console.sol new file mode 100644 index 0000000..ad57e53 --- /dev/null +++ b/lib/forge-std/src/console.sol @@ -0,0 +1,1533 @@ +// SPDX-License-Identifier: MIT +pragma solidity >=0.4.22 <0.9.0; + +library console { + address constant CONSOLE_ADDRESS = address(0x000000000000000000636F6e736F6c652e6c6f67); + + function _sendLogPayload(bytes memory payload) private view { + uint256 payloadLength = payload.length; + address consoleAddress = CONSOLE_ADDRESS; + /// @solidity memory-safe-assembly + assembly { + let payloadStart := add(payload, 32) + let r := staticcall(gas(), consoleAddress, payloadStart, payloadLength, 0, 0) + } + } + + function log() internal view { + _sendLogPayload(abi.encodeWithSignature("log()")); + } + + function logInt(int p0) internal view { + _sendLogPayload(abi.encodeWithSignature("log(int)", p0)); + } + + function logUint(uint p0) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint)", p0)); + } + + function logString(string memory p0) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string)", p0)); + } + + function logBool(bool p0) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool)", p0)); + } + + function logAddress(address p0) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address)", p0)); + } + + function logBytes(bytes memory p0) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bytes)", p0)); + } + + function logBytes1(bytes1 p0) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bytes1)", p0)); + } + + function logBytes2(bytes2 p0) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bytes2)", p0)); + } + + function logBytes3(bytes3 p0) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bytes3)", p0)); + } + + function logBytes4(bytes4 p0) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bytes4)", p0)); + } + + function logBytes5(bytes5 p0) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bytes5)", p0)); + } + + function logBytes6(bytes6 p0) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bytes6)", p0)); + } + + function logBytes7(bytes7 p0) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bytes7)", p0)); + } + + function logBytes8(bytes8 p0) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bytes8)", p0)); + } + + function logBytes9(bytes9 p0) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bytes9)", p0)); + } + + function logBytes10(bytes10 p0) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bytes10)", p0)); + } + + function logBytes11(bytes11 p0) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bytes11)", p0)); + } + + function logBytes12(bytes12 p0) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bytes12)", p0)); + } + + function logBytes13(bytes13 p0) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bytes13)", p0)); + } + + function logBytes14(bytes14 p0) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bytes14)", p0)); + } + + function logBytes15(bytes15 p0) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bytes15)", p0)); + } + + function logBytes16(bytes16 p0) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bytes16)", p0)); + } + + function logBytes17(bytes17 p0) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bytes17)", p0)); + } + + function logBytes18(bytes18 p0) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bytes18)", p0)); + } + + function logBytes19(bytes19 p0) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bytes19)", p0)); + } + + function logBytes20(bytes20 p0) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bytes20)", p0)); + } + + function logBytes21(bytes21 p0) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bytes21)", p0)); + } + + function logBytes22(bytes22 p0) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bytes22)", p0)); + } + + function logBytes23(bytes23 p0) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bytes23)", p0)); + } + + function logBytes24(bytes24 p0) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bytes24)", p0)); + } + + function logBytes25(bytes25 p0) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bytes25)", p0)); + } + + function logBytes26(bytes26 p0) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bytes26)", p0)); + } + + function logBytes27(bytes27 p0) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bytes27)", p0)); + } + + function logBytes28(bytes28 p0) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bytes28)", p0)); + } + + function logBytes29(bytes29 p0) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bytes29)", p0)); + } + + function logBytes30(bytes30 p0) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bytes30)", p0)); + } + + function logBytes31(bytes31 p0) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bytes31)", p0)); + } + + function logBytes32(bytes32 p0) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bytes32)", p0)); + } + + function log(uint p0) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint)", p0)); + } + + function log(string memory p0) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string)", p0)); + } + + function log(bool p0) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool)", p0)); + } + + function log(address p0) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address)", p0)); + } + + function log(uint p0, uint p1) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint,uint)", p0, p1)); + } + + function log(uint p0, string memory p1) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint,string)", p0, p1)); + } + + function log(uint p0, bool p1) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint,bool)", p0, p1)); + } + + function log(uint p0, address p1) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint,address)", p0, p1)); + } + + function log(string memory p0, uint p1) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,uint)", p0, p1)); + } + + function log(string memory p0, string memory p1) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,string)", p0, p1)); + } + + function log(string memory p0, bool p1) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,bool)", p0, p1)); + } + + function log(string memory p0, address p1) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,address)", p0, p1)); + } + + function log(bool p0, uint p1) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,uint)", p0, p1)); + } + + function log(bool p0, string memory p1) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,string)", p0, p1)); + } + + function log(bool p0, bool p1) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,bool)", p0, p1)); + } + + function log(bool p0, address p1) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,address)", p0, p1)); + } + + function log(address p0, uint p1) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,uint)", p0, p1)); + } + + function log(address p0, string memory p1) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,string)", p0, p1)); + } + + function log(address p0, bool p1) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,bool)", p0, p1)); + } + + function log(address p0, address p1) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,address)", p0, p1)); + } + + function log(uint p0, uint p1, uint p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint,uint,uint)", p0, p1, p2)); + } + + function log(uint p0, uint p1, string memory p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint,uint,string)", p0, p1, p2)); + } + + function log(uint p0, uint p1, bool p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint,uint,bool)", p0, p1, p2)); + } + + function log(uint p0, uint p1, address p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint,uint,address)", p0, p1, p2)); + } + + function log(uint p0, string memory p1, uint p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint,string,uint)", p0, p1, p2)); + } + + function log(uint p0, string memory p1, string memory p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint,string,string)", p0, p1, p2)); + } + + function log(uint p0, string memory p1, bool p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint,string,bool)", p0, p1, p2)); + } + + function log(uint p0, string memory p1, address p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint,string,address)", p0, p1, p2)); + } + + function log(uint p0, bool p1, uint p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint,bool,uint)", p0, p1, p2)); + } + + function log(uint p0, bool p1, string memory p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint,bool,string)", p0, p1, p2)); + } + + function log(uint p0, bool p1, bool p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint,bool,bool)", p0, p1, p2)); + } + + function log(uint p0, bool p1, address p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint,bool,address)", p0, p1, p2)); + } + + function log(uint p0, address p1, uint p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint,address,uint)", p0, p1, p2)); + } + + function log(uint p0, address p1, string memory p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint,address,string)", p0, p1, p2)); + } + + function log(uint p0, address p1, bool p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint,address,bool)", p0, p1, p2)); + } + + function log(uint p0, address p1, address p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint,address,address)", p0, p1, p2)); + } + + function log(string memory p0, uint p1, uint p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,uint,uint)", p0, p1, p2)); + } + + function log(string memory p0, uint p1, string memory p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,uint,string)", p0, p1, p2)); + } + + function log(string memory p0, uint p1, bool p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,uint,bool)", p0, p1, p2)); + } + + function log(string memory p0, uint p1, address p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,uint,address)", p0, p1, p2)); + } + + function log(string memory p0, string memory p1, uint p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,string,uint)", p0, p1, p2)); + } + + function log(string memory p0, string memory p1, string memory p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,string,string)", p0, p1, p2)); + } + + function log(string memory p0, string memory p1, bool p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,string,bool)", p0, p1, p2)); + } + + function log(string memory p0, string memory p1, address p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,string,address)", p0, p1, p2)); + } + + function log(string memory p0, bool p1, uint p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,bool,uint)", p0, p1, p2)); + } + + function log(string memory p0, bool p1, string memory p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,bool,string)", p0, p1, p2)); + } + + function log(string memory p0, bool p1, bool p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,bool,bool)", p0, p1, p2)); + } + + function log(string memory p0, bool p1, address p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,bool,address)", p0, p1, p2)); + } + + function log(string memory p0, address p1, uint p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,address,uint)", p0, p1, p2)); + } + + function log(string memory p0, address p1, string memory p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,address,string)", p0, p1, p2)); + } + + function log(string memory p0, address p1, bool p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,address,bool)", p0, p1, p2)); + } + + function log(string memory p0, address p1, address p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,address,address)", p0, p1, p2)); + } + + function log(bool p0, uint p1, uint p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,uint,uint)", p0, p1, p2)); + } + + function log(bool p0, uint p1, string memory p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,uint,string)", p0, p1, p2)); + } + + function log(bool p0, uint p1, bool p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,uint,bool)", p0, p1, p2)); + } + + function log(bool p0, uint p1, address p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,uint,address)", p0, p1, p2)); + } + + function log(bool p0, string memory p1, uint p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,string,uint)", p0, p1, p2)); + } + + function log(bool p0, string memory p1, string memory p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,string,string)", p0, p1, p2)); + } + + function log(bool p0, string memory p1, bool p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,string,bool)", p0, p1, p2)); + } + + function log(bool p0, string memory p1, address p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,string,address)", p0, p1, p2)); + } + + function log(bool p0, bool p1, uint p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,bool,uint)", p0, p1, p2)); + } + + function log(bool p0, bool p1, string memory p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,bool,string)", p0, p1, p2)); + } + + function log(bool p0, bool p1, bool p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,bool,bool)", p0, p1, p2)); + } + + function log(bool p0, bool p1, address p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,bool,address)", p0, p1, p2)); + } + + function log(bool p0, address p1, uint p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,address,uint)", p0, p1, p2)); + } + + function log(bool p0, address p1, string memory p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,address,string)", p0, p1, p2)); + } + + function log(bool p0, address p1, bool p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,address,bool)", p0, p1, p2)); + } + + function log(bool p0, address p1, address p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,address,address)", p0, p1, p2)); + } + + function log(address p0, uint p1, uint p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,uint,uint)", p0, p1, p2)); + } + + function log(address p0, uint p1, string memory p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,uint,string)", p0, p1, p2)); + } + + function log(address p0, uint p1, bool p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,uint,bool)", p0, p1, p2)); + } + + function log(address p0, uint p1, address p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,uint,address)", p0, p1, p2)); + } + + function log(address p0, string memory p1, uint p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,string,uint)", p0, p1, p2)); + } + + function log(address p0, string memory p1, string memory p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,string,string)", p0, p1, p2)); + } + + function log(address p0, string memory p1, bool p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,string,bool)", p0, p1, p2)); + } + + function log(address p0, string memory p1, address p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,string,address)", p0, p1, p2)); + } + + function log(address p0, bool p1, uint p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,bool,uint)", p0, p1, p2)); + } + + function log(address p0, bool p1, string memory p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,bool,string)", p0, p1, p2)); + } + + function log(address p0, bool p1, bool p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,bool,bool)", p0, p1, p2)); + } + + function log(address p0, bool p1, address p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,bool,address)", p0, p1, p2)); + } + + function log(address p0, address p1, uint p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,address,uint)", p0, p1, p2)); + } + + function log(address p0, address p1, string memory p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,address,string)", p0, p1, p2)); + } + + function log(address p0, address p1, bool p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,address,bool)", p0, p1, p2)); + } + + function log(address p0, address p1, address p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,address,address)", p0, p1, p2)); + } + + function log(uint p0, uint p1, uint p2, uint p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint,uint,uint,uint)", p0, p1, p2, p3)); + } + + function log(uint p0, uint p1, uint p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint,uint,uint,string)", p0, p1, p2, p3)); + } + + function log(uint p0, uint p1, uint p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint,uint,uint,bool)", p0, p1, p2, p3)); + } + + function log(uint p0, uint p1, uint p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint,uint,uint,address)", p0, p1, p2, p3)); + } + + function log(uint p0, uint p1, string memory p2, uint p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint,uint,string,uint)", p0, p1, p2, p3)); + } + + function log(uint p0, uint p1, string memory p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint,uint,string,string)", p0, p1, p2, p3)); + } + + function log(uint p0, uint p1, string memory p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint,uint,string,bool)", p0, p1, p2, p3)); + } + + function log(uint p0, uint p1, string memory p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint,uint,string,address)", p0, p1, p2, p3)); + } + + function log(uint p0, uint p1, bool p2, uint p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint,uint,bool,uint)", p0, p1, p2, p3)); + } + + function log(uint p0, uint p1, bool p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint,uint,bool,string)", p0, p1, p2, p3)); + } + + function log(uint p0, uint p1, bool p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint,uint,bool,bool)", p0, p1, p2, p3)); + } + + function log(uint p0, uint p1, bool p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint,uint,bool,address)", p0, p1, p2, p3)); + } + + function log(uint p0, uint p1, address p2, uint p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint,uint,address,uint)", p0, p1, p2, p3)); + } + + function log(uint p0, uint p1, address p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint,uint,address,string)", p0, p1, p2, p3)); + } + + function log(uint p0, uint p1, address p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint,uint,address,bool)", p0, p1, p2, p3)); + } + + function log(uint p0, uint p1, address p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint,uint,address,address)", p0, p1, p2, p3)); + } + + function log(uint p0, string memory p1, uint p2, uint p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint,string,uint,uint)", p0, p1, p2, p3)); + } + + function log(uint p0, string memory p1, uint p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint,string,uint,string)", p0, p1, p2, p3)); + } + + function log(uint p0, string memory p1, uint p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint,string,uint,bool)", p0, p1, p2, p3)); + } + + function log(uint p0, string memory p1, uint p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint,string,uint,address)", p0, p1, p2, p3)); + } + + function log(uint p0, string memory p1, string memory p2, uint p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint,string,string,uint)", p0, p1, p2, p3)); + } + + function log(uint p0, string memory p1, string memory p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint,string,string,string)", p0, p1, p2, p3)); + } + + function log(uint p0, string memory p1, string memory p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint,string,string,bool)", p0, p1, p2, p3)); + } + + function log(uint p0, string memory p1, string memory p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint,string,string,address)", p0, p1, p2, p3)); + } + + function log(uint p0, string memory p1, bool p2, uint p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint,string,bool,uint)", p0, p1, p2, p3)); + } + + function log(uint p0, string memory p1, bool p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint,string,bool,string)", p0, p1, p2, p3)); + } + + function log(uint p0, string memory p1, bool p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint,string,bool,bool)", p0, p1, p2, p3)); + } + + function log(uint p0, string memory p1, bool p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint,string,bool,address)", p0, p1, p2, p3)); + } + + function log(uint p0, string memory p1, address p2, uint p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint,string,address,uint)", p0, p1, p2, p3)); + } + + function log(uint p0, string memory p1, address p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint,string,address,string)", p0, p1, p2, p3)); + } + + function log(uint p0, string memory p1, address p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint,string,address,bool)", p0, p1, p2, p3)); + } + + function log(uint p0, string memory p1, address p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint,string,address,address)", p0, p1, p2, p3)); + } + + function log(uint p0, bool p1, uint p2, uint p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint,bool,uint,uint)", p0, p1, p2, p3)); + } + + function log(uint p0, bool p1, uint p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint,bool,uint,string)", p0, p1, p2, p3)); + } + + function log(uint p0, bool p1, uint p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint,bool,uint,bool)", p0, p1, p2, p3)); + } + + function log(uint p0, bool p1, uint p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint,bool,uint,address)", p0, p1, p2, p3)); + } + + function log(uint p0, bool p1, string memory p2, uint p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint,bool,string,uint)", p0, p1, p2, p3)); + } + + function log(uint p0, bool p1, string memory p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint,bool,string,string)", p0, p1, p2, p3)); + } + + function log(uint p0, bool p1, string memory p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint,bool,string,bool)", p0, p1, p2, p3)); + } + + function log(uint p0, bool p1, string memory p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint,bool,string,address)", p0, p1, p2, p3)); + } + + function log(uint p0, bool p1, bool p2, uint p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint,bool,bool,uint)", p0, p1, p2, p3)); + } + + function log(uint p0, bool p1, bool p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint,bool,bool,string)", p0, p1, p2, p3)); + } + + function log(uint p0, bool p1, bool p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint,bool,bool,bool)", p0, p1, p2, p3)); + } + + function log(uint p0, bool p1, bool p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint,bool,bool,address)", p0, p1, p2, p3)); + } + + function log(uint p0, bool p1, address p2, uint p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint,bool,address,uint)", p0, p1, p2, p3)); + } + + function log(uint p0, bool p1, address p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint,bool,address,string)", p0, p1, p2, p3)); + } + + function log(uint p0, bool p1, address p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint,bool,address,bool)", p0, p1, p2, p3)); + } + + function log(uint p0, bool p1, address p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint,bool,address,address)", p0, p1, p2, p3)); + } + + function log(uint p0, address p1, uint p2, uint p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint,address,uint,uint)", p0, p1, p2, p3)); + } + + function log(uint p0, address p1, uint p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint,address,uint,string)", p0, p1, p2, p3)); + } + + function log(uint p0, address p1, uint p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint,address,uint,bool)", p0, p1, p2, p3)); + } + + function log(uint p0, address p1, uint p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint,address,uint,address)", p0, p1, p2, p3)); + } + + function log(uint p0, address p1, string memory p2, uint p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint,address,string,uint)", p0, p1, p2, p3)); + } + + function log(uint p0, address p1, string memory p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint,address,string,string)", p0, p1, p2, p3)); + } + + function log(uint p0, address p1, string memory p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint,address,string,bool)", p0, p1, p2, p3)); + } + + function log(uint p0, address p1, string memory p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint,address,string,address)", p0, p1, p2, p3)); + } + + function log(uint p0, address p1, bool p2, uint p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint,address,bool,uint)", p0, p1, p2, p3)); + } + + function log(uint p0, address p1, bool p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint,address,bool,string)", p0, p1, p2, p3)); + } + + function log(uint p0, address p1, bool p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint,address,bool,bool)", p0, p1, p2, p3)); + } + + function log(uint p0, address p1, bool p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint,address,bool,address)", p0, p1, p2, p3)); + } + + function log(uint p0, address p1, address p2, uint p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint,address,address,uint)", p0, p1, p2, p3)); + } + + function log(uint p0, address p1, address p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint,address,address,string)", p0, p1, p2, p3)); + } + + function log(uint p0, address p1, address p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint,address,address,bool)", p0, p1, p2, p3)); + } + + function log(uint p0, address p1, address p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint,address,address,address)", p0, p1, p2, p3)); + } + + function log(string memory p0, uint p1, uint p2, uint p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,uint,uint,uint)", p0, p1, p2, p3)); + } + + function log(string memory p0, uint p1, uint p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,uint,uint,string)", p0, p1, p2, p3)); + } + + function log(string memory p0, uint p1, uint p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,uint,uint,bool)", p0, p1, p2, p3)); + } + + function log(string memory p0, uint p1, uint p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,uint,uint,address)", p0, p1, p2, p3)); + } + + function log(string memory p0, uint p1, string memory p2, uint p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,uint,string,uint)", p0, p1, p2, p3)); + } + + function log(string memory p0, uint p1, string memory p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,uint,string,string)", p0, p1, p2, p3)); + } + + function log(string memory p0, uint p1, string memory p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,uint,string,bool)", p0, p1, p2, p3)); + } + + function log(string memory p0, uint p1, string memory p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,uint,string,address)", p0, p1, p2, p3)); + } + + function log(string memory p0, uint p1, bool p2, uint p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,uint,bool,uint)", p0, p1, p2, p3)); + } + + function log(string memory p0, uint p1, bool p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,uint,bool,string)", p0, p1, p2, p3)); + } + + function log(string memory p0, uint p1, bool p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,uint,bool,bool)", p0, p1, p2, p3)); + } + + function log(string memory p0, uint p1, bool p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,uint,bool,address)", p0, p1, p2, p3)); + } + + function log(string memory p0, uint p1, address p2, uint p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,uint,address,uint)", p0, p1, p2, p3)); + } + + function log(string memory p0, uint p1, address p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,uint,address,string)", p0, p1, p2, p3)); + } + + function log(string memory p0, uint p1, address p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,uint,address,bool)", p0, p1, p2, p3)); + } + + function log(string memory p0, uint p1, address p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,uint,address,address)", p0, p1, p2, p3)); + } + + function log(string memory p0, string memory p1, uint p2, uint p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,string,uint,uint)", p0, p1, p2, p3)); + } + + function log(string memory p0, string memory p1, uint p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,string,uint,string)", p0, p1, p2, p3)); + } + + function log(string memory p0, string memory p1, uint p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,string,uint,bool)", p0, p1, p2, p3)); + } + + function log(string memory p0, string memory p1, uint p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,string,uint,address)", p0, p1, p2, p3)); + } + + function log(string memory p0, string memory p1, string memory p2, uint p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,string,string,uint)", p0, p1, p2, p3)); + } + + function log(string memory p0, string memory p1, string memory p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,string,string,string)", p0, p1, p2, p3)); + } + + function log(string memory p0, string memory p1, string memory p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,string,string,bool)", p0, p1, p2, p3)); + } + + function log(string memory p0, string memory p1, string memory p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,string,string,address)", p0, p1, p2, p3)); + } + + function log(string memory p0, string memory p1, bool p2, uint p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,string,bool,uint)", p0, p1, p2, p3)); + } + + function log(string memory p0, string memory p1, bool p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,string,bool,string)", p0, p1, p2, p3)); + } + + function log(string memory p0, string memory p1, bool p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,string,bool,bool)", p0, p1, p2, p3)); + } + + function log(string memory p0, string memory p1, bool p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,string,bool,address)", p0, p1, p2, p3)); + } + + function log(string memory p0, string memory p1, address p2, uint p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,string,address,uint)", p0, p1, p2, p3)); + } + + function log(string memory p0, string memory p1, address p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,string,address,string)", p0, p1, p2, p3)); + } + + function log(string memory p0, string memory p1, address p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,string,address,bool)", p0, p1, p2, p3)); + } + + function log(string memory p0, string memory p1, address p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,string,address,address)", p0, p1, p2, p3)); + } + + function log(string memory p0, bool p1, uint p2, uint p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,bool,uint,uint)", p0, p1, p2, p3)); + } + + function log(string memory p0, bool p1, uint p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,bool,uint,string)", p0, p1, p2, p3)); + } + + function log(string memory p0, bool p1, uint p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,bool,uint,bool)", p0, p1, p2, p3)); + } + + function log(string memory p0, bool p1, uint p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,bool,uint,address)", p0, p1, p2, p3)); + } + + function log(string memory p0, bool p1, string memory p2, uint p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,bool,string,uint)", p0, p1, p2, p3)); + } + + function log(string memory p0, bool p1, string memory p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,bool,string,string)", p0, p1, p2, p3)); + } + + function log(string memory p0, bool p1, string memory p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,bool,string,bool)", p0, p1, p2, p3)); + } + + function log(string memory p0, bool p1, string memory p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,bool,string,address)", p0, p1, p2, p3)); + } + + function log(string memory p0, bool p1, bool p2, uint p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,bool,bool,uint)", p0, p1, p2, p3)); + } + + function log(string memory p0, bool p1, bool p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,bool,bool,string)", p0, p1, p2, p3)); + } + + function log(string memory p0, bool p1, bool p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,bool,bool,bool)", p0, p1, p2, p3)); + } + + function log(string memory p0, bool p1, bool p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,bool,bool,address)", p0, p1, p2, p3)); + } + + function log(string memory p0, bool p1, address p2, uint p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,bool,address,uint)", p0, p1, p2, p3)); + } + + function log(string memory p0, bool p1, address p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,bool,address,string)", p0, p1, p2, p3)); + } + + function log(string memory p0, bool p1, address p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,bool,address,bool)", p0, p1, p2, p3)); + } + + function log(string memory p0, bool p1, address p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,bool,address,address)", p0, p1, p2, p3)); + } + + function log(string memory p0, address p1, uint p2, uint p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,address,uint,uint)", p0, p1, p2, p3)); + } + + function log(string memory p0, address p1, uint p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,address,uint,string)", p0, p1, p2, p3)); + } + + function log(string memory p0, address p1, uint p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,address,uint,bool)", p0, p1, p2, p3)); + } + + function log(string memory p0, address p1, uint p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,address,uint,address)", p0, p1, p2, p3)); + } + + function log(string memory p0, address p1, string memory p2, uint p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,address,string,uint)", p0, p1, p2, p3)); + } + + function log(string memory p0, address p1, string memory p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,address,string,string)", p0, p1, p2, p3)); + } + + function log(string memory p0, address p1, string memory p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,address,string,bool)", p0, p1, p2, p3)); + } + + function log(string memory p0, address p1, string memory p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,address,string,address)", p0, p1, p2, p3)); + } + + function log(string memory p0, address p1, bool p2, uint p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,address,bool,uint)", p0, p1, p2, p3)); + } + + function log(string memory p0, address p1, bool p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,address,bool,string)", p0, p1, p2, p3)); + } + + function log(string memory p0, address p1, bool p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,address,bool,bool)", p0, p1, p2, p3)); + } + + function log(string memory p0, address p1, bool p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,address,bool,address)", p0, p1, p2, p3)); + } + + function log(string memory p0, address p1, address p2, uint p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,address,address,uint)", p0, p1, p2, p3)); + } + + function log(string memory p0, address p1, address p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,address,address,string)", p0, p1, p2, p3)); + } + + function log(string memory p0, address p1, address p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,address,address,bool)", p0, p1, p2, p3)); + } + + function log(string memory p0, address p1, address p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,address,address,address)", p0, p1, p2, p3)); + } + + function log(bool p0, uint p1, uint p2, uint p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,uint,uint,uint)", p0, p1, p2, p3)); + } + + function log(bool p0, uint p1, uint p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,uint,uint,string)", p0, p1, p2, p3)); + } + + function log(bool p0, uint p1, uint p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,uint,uint,bool)", p0, p1, p2, p3)); + } + + function log(bool p0, uint p1, uint p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,uint,uint,address)", p0, p1, p2, p3)); + } + + function log(bool p0, uint p1, string memory p2, uint p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,uint,string,uint)", p0, p1, p2, p3)); + } + + function log(bool p0, uint p1, string memory p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,uint,string,string)", p0, p1, p2, p3)); + } + + function log(bool p0, uint p1, string memory p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,uint,string,bool)", p0, p1, p2, p3)); + } + + function log(bool p0, uint p1, string memory p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,uint,string,address)", p0, p1, p2, p3)); + } + + function log(bool p0, uint p1, bool p2, uint p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,uint,bool,uint)", p0, p1, p2, p3)); + } + + function log(bool p0, uint p1, bool p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,uint,bool,string)", p0, p1, p2, p3)); + } + + function log(bool p0, uint p1, bool p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,uint,bool,bool)", p0, p1, p2, p3)); + } + + function log(bool p0, uint p1, bool p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,uint,bool,address)", p0, p1, p2, p3)); + } + + function log(bool p0, uint p1, address p2, uint p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,uint,address,uint)", p0, p1, p2, p3)); + } + + function log(bool p0, uint p1, address p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,uint,address,string)", p0, p1, p2, p3)); + } + + function log(bool p0, uint p1, address p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,uint,address,bool)", p0, p1, p2, p3)); + } + + function log(bool p0, uint p1, address p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,uint,address,address)", p0, p1, p2, p3)); + } + + function log(bool p0, string memory p1, uint p2, uint p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,string,uint,uint)", p0, p1, p2, p3)); + } + + function log(bool p0, string memory p1, uint p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,string,uint,string)", p0, p1, p2, p3)); + } + + function log(bool p0, string memory p1, uint p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,string,uint,bool)", p0, p1, p2, p3)); + } + + function log(bool p0, string memory p1, uint p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,string,uint,address)", p0, p1, p2, p3)); + } + + function log(bool p0, string memory p1, string memory p2, uint p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,string,string,uint)", p0, p1, p2, p3)); + } + + function log(bool p0, string memory p1, string memory p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,string,string,string)", p0, p1, p2, p3)); + } + + function log(bool p0, string memory p1, string memory p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,string,string,bool)", p0, p1, p2, p3)); + } + + function log(bool p0, string memory p1, string memory p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,string,string,address)", p0, p1, p2, p3)); + } + + function log(bool p0, string memory p1, bool p2, uint p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,string,bool,uint)", p0, p1, p2, p3)); + } + + function log(bool p0, string memory p1, bool p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,string,bool,string)", p0, p1, p2, p3)); + } + + function log(bool p0, string memory p1, bool p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,string,bool,bool)", p0, p1, p2, p3)); + } + + function log(bool p0, string memory p1, bool p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,string,bool,address)", p0, p1, p2, p3)); + } + + function log(bool p0, string memory p1, address p2, uint p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,string,address,uint)", p0, p1, p2, p3)); + } + + function log(bool p0, string memory p1, address p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,string,address,string)", p0, p1, p2, p3)); + } + + function log(bool p0, string memory p1, address p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,string,address,bool)", p0, p1, p2, p3)); + } + + function log(bool p0, string memory p1, address p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,string,address,address)", p0, p1, p2, p3)); + } + + function log(bool p0, bool p1, uint p2, uint p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,bool,uint,uint)", p0, p1, p2, p3)); + } + + function log(bool p0, bool p1, uint p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,bool,uint,string)", p0, p1, p2, p3)); + } + + function log(bool p0, bool p1, uint p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,bool,uint,bool)", p0, p1, p2, p3)); + } + + function log(bool p0, bool p1, uint p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,bool,uint,address)", p0, p1, p2, p3)); + } + + function log(bool p0, bool p1, string memory p2, uint p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,bool,string,uint)", p0, p1, p2, p3)); + } + + function log(bool p0, bool p1, string memory p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,bool,string,string)", p0, p1, p2, p3)); + } + + function log(bool p0, bool p1, string memory p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,bool,string,bool)", p0, p1, p2, p3)); + } + + function log(bool p0, bool p1, string memory p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,bool,string,address)", p0, p1, p2, p3)); + } + + function log(bool p0, bool p1, bool p2, uint p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,bool,bool,uint)", p0, p1, p2, p3)); + } + + function log(bool p0, bool p1, bool p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,bool,bool,string)", p0, p1, p2, p3)); + } + + function log(bool p0, bool p1, bool p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,bool,bool,bool)", p0, p1, p2, p3)); + } + + function log(bool p0, bool p1, bool p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,bool,bool,address)", p0, p1, p2, p3)); + } + + function log(bool p0, bool p1, address p2, uint p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,bool,address,uint)", p0, p1, p2, p3)); + } + + function log(bool p0, bool p1, address p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,bool,address,string)", p0, p1, p2, p3)); + } + + function log(bool p0, bool p1, address p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,bool,address,bool)", p0, p1, p2, p3)); + } + + function log(bool p0, bool p1, address p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,bool,address,address)", p0, p1, p2, p3)); + } + + function log(bool p0, address p1, uint p2, uint p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,address,uint,uint)", p0, p1, p2, p3)); + } + + function log(bool p0, address p1, uint p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,address,uint,string)", p0, p1, p2, p3)); + } + + function log(bool p0, address p1, uint p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,address,uint,bool)", p0, p1, p2, p3)); + } + + function log(bool p0, address p1, uint p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,address,uint,address)", p0, p1, p2, p3)); + } + + function log(bool p0, address p1, string memory p2, uint p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,address,string,uint)", p0, p1, p2, p3)); + } + + function log(bool p0, address p1, string memory p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,address,string,string)", p0, p1, p2, p3)); + } + + function log(bool p0, address p1, string memory p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,address,string,bool)", p0, p1, p2, p3)); + } + + function log(bool p0, address p1, string memory p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,address,string,address)", p0, p1, p2, p3)); + } + + function log(bool p0, address p1, bool p2, uint p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,address,bool,uint)", p0, p1, p2, p3)); + } + + function log(bool p0, address p1, bool p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,address,bool,string)", p0, p1, p2, p3)); + } + + function log(bool p0, address p1, bool p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,address,bool,bool)", p0, p1, p2, p3)); + } + + function log(bool p0, address p1, bool p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,address,bool,address)", p0, p1, p2, p3)); + } + + function log(bool p0, address p1, address p2, uint p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,address,address,uint)", p0, p1, p2, p3)); + } + + function log(bool p0, address p1, address p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,address,address,string)", p0, p1, p2, p3)); + } + + function log(bool p0, address p1, address p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,address,address,bool)", p0, p1, p2, p3)); + } + + function log(bool p0, address p1, address p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,address,address,address)", p0, p1, p2, p3)); + } + + function log(address p0, uint p1, uint p2, uint p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,uint,uint,uint)", p0, p1, p2, p3)); + } + + function log(address p0, uint p1, uint p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,uint,uint,string)", p0, p1, p2, p3)); + } + + function log(address p0, uint p1, uint p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,uint,uint,bool)", p0, p1, p2, p3)); + } + + function log(address p0, uint p1, uint p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,uint,uint,address)", p0, p1, p2, p3)); + } + + function log(address p0, uint p1, string memory p2, uint p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,uint,string,uint)", p0, p1, p2, p3)); + } + + function log(address p0, uint p1, string memory p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,uint,string,string)", p0, p1, p2, p3)); + } + + function log(address p0, uint p1, string memory p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,uint,string,bool)", p0, p1, p2, p3)); + } + + function log(address p0, uint p1, string memory p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,uint,string,address)", p0, p1, p2, p3)); + } + + function log(address p0, uint p1, bool p2, uint p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,uint,bool,uint)", p0, p1, p2, p3)); + } + + function log(address p0, uint p1, bool p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,uint,bool,string)", p0, p1, p2, p3)); + } + + function log(address p0, uint p1, bool p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,uint,bool,bool)", p0, p1, p2, p3)); + } + + function log(address p0, uint p1, bool p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,uint,bool,address)", p0, p1, p2, p3)); + } + + function log(address p0, uint p1, address p2, uint p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,uint,address,uint)", p0, p1, p2, p3)); + } + + function log(address p0, uint p1, address p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,uint,address,string)", p0, p1, p2, p3)); + } + + function log(address p0, uint p1, address p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,uint,address,bool)", p0, p1, p2, p3)); + } + + function log(address p0, uint p1, address p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,uint,address,address)", p0, p1, p2, p3)); + } + + function log(address p0, string memory p1, uint p2, uint p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,string,uint,uint)", p0, p1, p2, p3)); + } + + function log(address p0, string memory p1, uint p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,string,uint,string)", p0, p1, p2, p3)); + } + + function log(address p0, string memory p1, uint p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,string,uint,bool)", p0, p1, p2, p3)); + } + + function log(address p0, string memory p1, uint p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,string,uint,address)", p0, p1, p2, p3)); + } + + function log(address p0, string memory p1, string memory p2, uint p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,string,string,uint)", p0, p1, p2, p3)); + } + + function log(address p0, string memory p1, string memory p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,string,string,string)", p0, p1, p2, p3)); + } + + function log(address p0, string memory p1, string memory p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,string,string,bool)", p0, p1, p2, p3)); + } + + function log(address p0, string memory p1, string memory p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,string,string,address)", p0, p1, p2, p3)); + } + + function log(address p0, string memory p1, bool p2, uint p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,string,bool,uint)", p0, p1, p2, p3)); + } + + function log(address p0, string memory p1, bool p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,string,bool,string)", p0, p1, p2, p3)); + } + + function log(address p0, string memory p1, bool p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,string,bool,bool)", p0, p1, p2, p3)); + } + + function log(address p0, string memory p1, bool p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,string,bool,address)", p0, p1, p2, p3)); + } + + function log(address p0, string memory p1, address p2, uint p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,string,address,uint)", p0, p1, p2, p3)); + } + + function log(address p0, string memory p1, address p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,string,address,string)", p0, p1, p2, p3)); + } + + function log(address p0, string memory p1, address p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,string,address,bool)", p0, p1, p2, p3)); + } + + function log(address p0, string memory p1, address p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,string,address,address)", p0, p1, p2, p3)); + } + + function log(address p0, bool p1, uint p2, uint p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,bool,uint,uint)", p0, p1, p2, p3)); + } + + function log(address p0, bool p1, uint p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,bool,uint,string)", p0, p1, p2, p3)); + } + + function log(address p0, bool p1, uint p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,bool,uint,bool)", p0, p1, p2, p3)); + } + + function log(address p0, bool p1, uint p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,bool,uint,address)", p0, p1, p2, p3)); + } + + function log(address p0, bool p1, string memory p2, uint p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,bool,string,uint)", p0, p1, p2, p3)); + } + + function log(address p0, bool p1, string memory p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,bool,string,string)", p0, p1, p2, p3)); + } + + function log(address p0, bool p1, string memory p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,bool,string,bool)", p0, p1, p2, p3)); + } + + function log(address p0, bool p1, string memory p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,bool,string,address)", p0, p1, p2, p3)); + } + + function log(address p0, bool p1, bool p2, uint p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,bool,bool,uint)", p0, p1, p2, p3)); + } + + function log(address p0, bool p1, bool p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,bool,bool,string)", p0, p1, p2, p3)); + } + + function log(address p0, bool p1, bool p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,bool,bool,bool)", p0, p1, p2, p3)); + } + + function log(address p0, bool p1, bool p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,bool,bool,address)", p0, p1, p2, p3)); + } + + function log(address p0, bool p1, address p2, uint p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,bool,address,uint)", p0, p1, p2, p3)); + } + + function log(address p0, bool p1, address p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,bool,address,string)", p0, p1, p2, p3)); + } + + function log(address p0, bool p1, address p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,bool,address,bool)", p0, p1, p2, p3)); + } + + function log(address p0, bool p1, address p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,bool,address,address)", p0, p1, p2, p3)); + } + + function log(address p0, address p1, uint p2, uint p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,address,uint,uint)", p0, p1, p2, p3)); + } + + function log(address p0, address p1, uint p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,address,uint,string)", p0, p1, p2, p3)); + } + + function log(address p0, address p1, uint p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,address,uint,bool)", p0, p1, p2, p3)); + } + + function log(address p0, address p1, uint p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,address,uint,address)", p0, p1, p2, p3)); + } + + function log(address p0, address p1, string memory p2, uint p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,address,string,uint)", p0, p1, p2, p3)); + } + + function log(address p0, address p1, string memory p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,address,string,string)", p0, p1, p2, p3)); + } + + function log(address p0, address p1, string memory p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,address,string,bool)", p0, p1, p2, p3)); + } + + function log(address p0, address p1, string memory p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,address,string,address)", p0, p1, p2, p3)); + } + + function log(address p0, address p1, bool p2, uint p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,address,bool,uint)", p0, p1, p2, p3)); + } + + function log(address p0, address p1, bool p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,address,bool,string)", p0, p1, p2, p3)); + } + + function log(address p0, address p1, bool p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,address,bool,bool)", p0, p1, p2, p3)); + } + + function log(address p0, address p1, bool p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,address,bool,address)", p0, p1, p2, p3)); + } + + function log(address p0, address p1, address p2, uint p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,address,address,uint)", p0, p1, p2, p3)); + } + + function log(address p0, address p1, address p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,address,address,string)", p0, p1, p2, p3)); + } + + function log(address p0, address p1, address p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,address,address,bool)", p0, p1, p2, p3)); + } + + function log(address p0, address p1, address p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,address,address,address)", p0, p1, p2, p3)); + } + +} \ No newline at end of file diff --git a/lib/forge-std/src/console2.sol b/lib/forge-std/src/console2.sol new file mode 100644 index 0000000..8596233 --- /dev/null +++ b/lib/forge-std/src/console2.sol @@ -0,0 +1,1546 @@ +// SPDX-License-Identifier: MIT +pragma solidity >=0.4.22 <0.9.0; + +/// @dev The original console.sol uses `int` and `uint` for computing function selectors, but it should +/// use `int256` and `uint256`. This modified version fixes that. This version is recommended +/// over `console.sol` if you don't need compatibility with Hardhat as the logs will show up in +/// forge stack traces. If you do need compatibility with Hardhat, you must use `console.sol`. +/// Reference: https://github.com/NomicFoundation/hardhat/issues/2178 +library console2 { + address constant CONSOLE_ADDRESS = address(0x000000000000000000636F6e736F6c652e6c6f67); + + function _sendLogPayload(bytes memory payload) private view { + uint256 payloadLength = payload.length; + address consoleAddress = CONSOLE_ADDRESS; + /// @solidity memory-safe-assembly + assembly { + let payloadStart := add(payload, 32) + let r := staticcall(gas(), consoleAddress, payloadStart, payloadLength, 0, 0) + } + } + + function log() internal view { + _sendLogPayload(abi.encodeWithSignature("log()")); + } + + function logInt(int256 p0) internal view { + _sendLogPayload(abi.encodeWithSignature("log(int256)", p0)); + } + + function logUint(uint256 p0) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint256)", p0)); + } + + function logString(string memory p0) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string)", p0)); + } + + function logBool(bool p0) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool)", p0)); + } + + function logAddress(address p0) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address)", p0)); + } + + function logBytes(bytes memory p0) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bytes)", p0)); + } + + function logBytes1(bytes1 p0) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bytes1)", p0)); + } + + function logBytes2(bytes2 p0) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bytes2)", p0)); + } + + function logBytes3(bytes3 p0) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bytes3)", p0)); + } + + function logBytes4(bytes4 p0) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bytes4)", p0)); + } + + function logBytes5(bytes5 p0) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bytes5)", p0)); + } + + function logBytes6(bytes6 p0) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bytes6)", p0)); + } + + function logBytes7(bytes7 p0) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bytes7)", p0)); + } + + function logBytes8(bytes8 p0) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bytes8)", p0)); + } + + function logBytes9(bytes9 p0) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bytes9)", p0)); + } + + function logBytes10(bytes10 p0) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bytes10)", p0)); + } + + function logBytes11(bytes11 p0) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bytes11)", p0)); + } + + function logBytes12(bytes12 p0) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bytes12)", p0)); + } + + function logBytes13(bytes13 p0) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bytes13)", p0)); + } + + function logBytes14(bytes14 p0) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bytes14)", p0)); + } + + function logBytes15(bytes15 p0) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bytes15)", p0)); + } + + function logBytes16(bytes16 p0) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bytes16)", p0)); + } + + function logBytes17(bytes17 p0) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bytes17)", p0)); + } + + function logBytes18(bytes18 p0) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bytes18)", p0)); + } + + function logBytes19(bytes19 p0) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bytes19)", p0)); + } + + function logBytes20(bytes20 p0) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bytes20)", p0)); + } + + function logBytes21(bytes21 p0) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bytes21)", p0)); + } + + function logBytes22(bytes22 p0) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bytes22)", p0)); + } + + function logBytes23(bytes23 p0) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bytes23)", p0)); + } + + function logBytes24(bytes24 p0) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bytes24)", p0)); + } + + function logBytes25(bytes25 p0) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bytes25)", p0)); + } + + function logBytes26(bytes26 p0) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bytes26)", p0)); + } + + function logBytes27(bytes27 p0) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bytes27)", p0)); + } + + function logBytes28(bytes28 p0) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bytes28)", p0)); + } + + function logBytes29(bytes29 p0) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bytes29)", p0)); + } + + function logBytes30(bytes30 p0) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bytes30)", p0)); + } + + function logBytes31(bytes31 p0) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bytes31)", p0)); + } + + function logBytes32(bytes32 p0) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bytes32)", p0)); + } + + function log(uint256 p0) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint256)", p0)); + } + + function log(int256 p0) internal view { + _sendLogPayload(abi.encodeWithSignature("log(int256)", p0)); + } + + function log(string memory p0) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string)", p0)); + } + + function log(bool p0) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool)", p0)); + } + + function log(address p0) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address)", p0)); + } + + function log(uint256 p0, uint256 p1) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint256,uint256)", p0, p1)); + } + + function log(uint256 p0, string memory p1) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint256,string)", p0, p1)); + } + + function log(uint256 p0, bool p1) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint256,bool)", p0, p1)); + } + + function log(uint256 p0, address p1) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint256,address)", p0, p1)); + } + + function log(string memory p0, uint256 p1) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,uint256)", p0, p1)); + } + + function log(string memory p0, int256 p1) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,int256)", p0, p1)); + } + + function log(string memory p0, string memory p1) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,string)", p0, p1)); + } + + function log(string memory p0, bool p1) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,bool)", p0, p1)); + } + + function log(string memory p0, address p1) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,address)", p0, p1)); + } + + function log(bool p0, uint256 p1) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,uint256)", p0, p1)); + } + + function log(bool p0, string memory p1) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,string)", p0, p1)); + } + + function log(bool p0, bool p1) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,bool)", p0, p1)); + } + + function log(bool p0, address p1) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,address)", p0, p1)); + } + + function log(address p0, uint256 p1) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,uint256)", p0, p1)); + } + + function log(address p0, string memory p1) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,string)", p0, p1)); + } + + function log(address p0, bool p1) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,bool)", p0, p1)); + } + + function log(address p0, address p1) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,address)", p0, p1)); + } + + function log(uint256 p0, uint256 p1, uint256 p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint256,uint256,uint256)", p0, p1, p2)); + } + + function log(uint256 p0, uint256 p1, string memory p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint256,uint256,string)", p0, p1, p2)); + } + + function log(uint256 p0, uint256 p1, bool p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint256,uint256,bool)", p0, p1, p2)); + } + + function log(uint256 p0, uint256 p1, address p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint256,uint256,address)", p0, p1, p2)); + } + + function log(uint256 p0, string memory p1, uint256 p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint256,string,uint256)", p0, p1, p2)); + } + + function log(uint256 p0, string memory p1, string memory p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint256,string,string)", p0, p1, p2)); + } + + function log(uint256 p0, string memory p1, bool p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint256,string,bool)", p0, p1, p2)); + } + + function log(uint256 p0, string memory p1, address p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint256,string,address)", p0, p1, p2)); + } + + function log(uint256 p0, bool p1, uint256 p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint256,bool,uint256)", p0, p1, p2)); + } + + function log(uint256 p0, bool p1, string memory p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint256,bool,string)", p0, p1, p2)); + } + + function log(uint256 p0, bool p1, bool p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint256,bool,bool)", p0, p1, p2)); + } + + function log(uint256 p0, bool p1, address p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint256,bool,address)", p0, p1, p2)); + } + + function log(uint256 p0, address p1, uint256 p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint256,address,uint256)", p0, p1, p2)); + } + + function log(uint256 p0, address p1, string memory p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint256,address,string)", p0, p1, p2)); + } + + function log(uint256 p0, address p1, bool p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint256,address,bool)", p0, p1, p2)); + } + + function log(uint256 p0, address p1, address p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint256,address,address)", p0, p1, p2)); + } + + function log(string memory p0, uint256 p1, uint256 p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,uint256,uint256)", p0, p1, p2)); + } + + function log(string memory p0, uint256 p1, string memory p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,uint256,string)", p0, p1, p2)); + } + + function log(string memory p0, uint256 p1, bool p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,uint256,bool)", p0, p1, p2)); + } + + function log(string memory p0, uint256 p1, address p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,uint256,address)", p0, p1, p2)); + } + + function log(string memory p0, string memory p1, uint256 p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,string,uint256)", p0, p1, p2)); + } + + function log(string memory p0, string memory p1, string memory p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,string,string)", p0, p1, p2)); + } + + function log(string memory p0, string memory p1, bool p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,string,bool)", p0, p1, p2)); + } + + function log(string memory p0, string memory p1, address p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,string,address)", p0, p1, p2)); + } + + function log(string memory p0, bool p1, uint256 p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,bool,uint256)", p0, p1, p2)); + } + + function log(string memory p0, bool p1, string memory p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,bool,string)", p0, p1, p2)); + } + + function log(string memory p0, bool p1, bool p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,bool,bool)", p0, p1, p2)); + } + + function log(string memory p0, bool p1, address p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,bool,address)", p0, p1, p2)); + } + + function log(string memory p0, address p1, uint256 p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,address,uint256)", p0, p1, p2)); + } + + function log(string memory p0, address p1, string memory p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,address,string)", p0, p1, p2)); + } + + function log(string memory p0, address p1, bool p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,address,bool)", p0, p1, p2)); + } + + function log(string memory p0, address p1, address p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,address,address)", p0, p1, p2)); + } + + function log(bool p0, uint256 p1, uint256 p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,uint256,uint256)", p0, p1, p2)); + } + + function log(bool p0, uint256 p1, string memory p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,uint256,string)", p0, p1, p2)); + } + + function log(bool p0, uint256 p1, bool p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,uint256,bool)", p0, p1, p2)); + } + + function log(bool p0, uint256 p1, address p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,uint256,address)", p0, p1, p2)); + } + + function log(bool p0, string memory p1, uint256 p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,string,uint256)", p0, p1, p2)); + } + + function log(bool p0, string memory p1, string memory p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,string,string)", p0, p1, p2)); + } + + function log(bool p0, string memory p1, bool p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,string,bool)", p0, p1, p2)); + } + + function log(bool p0, string memory p1, address p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,string,address)", p0, p1, p2)); + } + + function log(bool p0, bool p1, uint256 p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,bool,uint256)", p0, p1, p2)); + } + + function log(bool p0, bool p1, string memory p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,bool,string)", p0, p1, p2)); + } + + function log(bool p0, bool p1, bool p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,bool,bool)", p0, p1, p2)); + } + + function log(bool p0, bool p1, address p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,bool,address)", p0, p1, p2)); + } + + function log(bool p0, address p1, uint256 p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,address,uint256)", p0, p1, p2)); + } + + function log(bool p0, address p1, string memory p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,address,string)", p0, p1, p2)); + } + + function log(bool p0, address p1, bool p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,address,bool)", p0, p1, p2)); + } + + function log(bool p0, address p1, address p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,address,address)", p0, p1, p2)); + } + + function log(address p0, uint256 p1, uint256 p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,uint256,uint256)", p0, p1, p2)); + } + + function log(address p0, uint256 p1, string memory p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,uint256,string)", p0, p1, p2)); + } + + function log(address p0, uint256 p1, bool p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,uint256,bool)", p0, p1, p2)); + } + + function log(address p0, uint256 p1, address p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,uint256,address)", p0, p1, p2)); + } + + function log(address p0, string memory p1, uint256 p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,string,uint256)", p0, p1, p2)); + } + + function log(address p0, string memory p1, string memory p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,string,string)", p0, p1, p2)); + } + + function log(address p0, string memory p1, bool p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,string,bool)", p0, p1, p2)); + } + + function log(address p0, string memory p1, address p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,string,address)", p0, p1, p2)); + } + + function log(address p0, bool p1, uint256 p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,bool,uint256)", p0, p1, p2)); + } + + function log(address p0, bool p1, string memory p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,bool,string)", p0, p1, p2)); + } + + function log(address p0, bool p1, bool p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,bool,bool)", p0, p1, p2)); + } + + function log(address p0, bool p1, address p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,bool,address)", p0, p1, p2)); + } + + function log(address p0, address p1, uint256 p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,address,uint256)", p0, p1, p2)); + } + + function log(address p0, address p1, string memory p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,address,string)", p0, p1, p2)); + } + + function log(address p0, address p1, bool p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,address,bool)", p0, p1, p2)); + } + + function log(address p0, address p1, address p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,address,address)", p0, p1, p2)); + } + + function log(uint256 p0, uint256 p1, uint256 p2, uint256 p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint256,uint256,uint256,uint256)", p0, p1, p2, p3)); + } + + function log(uint256 p0, uint256 p1, uint256 p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint256,uint256,uint256,string)", p0, p1, p2, p3)); + } + + function log(uint256 p0, uint256 p1, uint256 p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint256,uint256,uint256,bool)", p0, p1, p2, p3)); + } + + function log(uint256 p0, uint256 p1, uint256 p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint256,uint256,uint256,address)", p0, p1, p2, p3)); + } + + function log(uint256 p0, uint256 p1, string memory p2, uint256 p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint256,uint256,string,uint256)", p0, p1, p2, p3)); + } + + function log(uint256 p0, uint256 p1, string memory p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint256,uint256,string,string)", p0, p1, p2, p3)); + } + + function log(uint256 p0, uint256 p1, string memory p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint256,uint256,string,bool)", p0, p1, p2, p3)); + } + + function log(uint256 p0, uint256 p1, string memory p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint256,uint256,string,address)", p0, p1, p2, p3)); + } + + function log(uint256 p0, uint256 p1, bool p2, uint256 p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint256,uint256,bool,uint256)", p0, p1, p2, p3)); + } + + function log(uint256 p0, uint256 p1, bool p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint256,uint256,bool,string)", p0, p1, p2, p3)); + } + + function log(uint256 p0, uint256 p1, bool p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint256,uint256,bool,bool)", p0, p1, p2, p3)); + } + + function log(uint256 p0, uint256 p1, bool p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint256,uint256,bool,address)", p0, p1, p2, p3)); + } + + function log(uint256 p0, uint256 p1, address p2, uint256 p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint256,uint256,address,uint256)", p0, p1, p2, p3)); + } + + function log(uint256 p0, uint256 p1, address p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint256,uint256,address,string)", p0, p1, p2, p3)); + } + + function log(uint256 p0, uint256 p1, address p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint256,uint256,address,bool)", p0, p1, p2, p3)); + } + + function log(uint256 p0, uint256 p1, address p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint256,uint256,address,address)", p0, p1, p2, p3)); + } + + function log(uint256 p0, string memory p1, uint256 p2, uint256 p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint256,string,uint256,uint256)", p0, p1, p2, p3)); + } + + function log(uint256 p0, string memory p1, uint256 p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint256,string,uint256,string)", p0, p1, p2, p3)); + } + + function log(uint256 p0, string memory p1, uint256 p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint256,string,uint256,bool)", p0, p1, p2, p3)); + } + + function log(uint256 p0, string memory p1, uint256 p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint256,string,uint256,address)", p0, p1, p2, p3)); + } + + function log(uint256 p0, string memory p1, string memory p2, uint256 p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint256,string,string,uint256)", p0, p1, p2, p3)); + } + + function log(uint256 p0, string memory p1, string memory p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint256,string,string,string)", p0, p1, p2, p3)); + } + + function log(uint256 p0, string memory p1, string memory p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint256,string,string,bool)", p0, p1, p2, p3)); + } + + function log(uint256 p0, string memory p1, string memory p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint256,string,string,address)", p0, p1, p2, p3)); + } + + function log(uint256 p0, string memory p1, bool p2, uint256 p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint256,string,bool,uint256)", p0, p1, p2, p3)); + } + + function log(uint256 p0, string memory p1, bool p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint256,string,bool,string)", p0, p1, p2, p3)); + } + + function log(uint256 p0, string memory p1, bool p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint256,string,bool,bool)", p0, p1, p2, p3)); + } + + function log(uint256 p0, string memory p1, bool p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint256,string,bool,address)", p0, p1, p2, p3)); + } + + function log(uint256 p0, string memory p1, address p2, uint256 p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint256,string,address,uint256)", p0, p1, p2, p3)); + } + + function log(uint256 p0, string memory p1, address p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint256,string,address,string)", p0, p1, p2, p3)); + } + + function log(uint256 p0, string memory p1, address p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint256,string,address,bool)", p0, p1, p2, p3)); + } + + function log(uint256 p0, string memory p1, address p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint256,string,address,address)", p0, p1, p2, p3)); + } + + function log(uint256 p0, bool p1, uint256 p2, uint256 p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint256,bool,uint256,uint256)", p0, p1, p2, p3)); + } + + function log(uint256 p0, bool p1, uint256 p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint256,bool,uint256,string)", p0, p1, p2, p3)); + } + + function log(uint256 p0, bool p1, uint256 p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint256,bool,uint256,bool)", p0, p1, p2, p3)); + } + + function log(uint256 p0, bool p1, uint256 p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint256,bool,uint256,address)", p0, p1, p2, p3)); + } + + function log(uint256 p0, bool p1, string memory p2, uint256 p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint256,bool,string,uint256)", p0, p1, p2, p3)); + } + + function log(uint256 p0, bool p1, string memory p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint256,bool,string,string)", p0, p1, p2, p3)); + } + + function log(uint256 p0, bool p1, string memory p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint256,bool,string,bool)", p0, p1, p2, p3)); + } + + function log(uint256 p0, bool p1, string memory p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint256,bool,string,address)", p0, p1, p2, p3)); + } + + function log(uint256 p0, bool p1, bool p2, uint256 p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint256,bool,bool,uint256)", p0, p1, p2, p3)); + } + + function log(uint256 p0, bool p1, bool p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint256,bool,bool,string)", p0, p1, p2, p3)); + } + + function log(uint256 p0, bool p1, bool p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint256,bool,bool,bool)", p0, p1, p2, p3)); + } + + function log(uint256 p0, bool p1, bool p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint256,bool,bool,address)", p0, p1, p2, p3)); + } + + function log(uint256 p0, bool p1, address p2, uint256 p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint256,bool,address,uint256)", p0, p1, p2, p3)); + } + + function log(uint256 p0, bool p1, address p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint256,bool,address,string)", p0, p1, p2, p3)); + } + + function log(uint256 p0, bool p1, address p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint256,bool,address,bool)", p0, p1, p2, p3)); + } + + function log(uint256 p0, bool p1, address p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint256,bool,address,address)", p0, p1, p2, p3)); + } + + function log(uint256 p0, address p1, uint256 p2, uint256 p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint256,address,uint256,uint256)", p0, p1, p2, p3)); + } + + function log(uint256 p0, address p1, uint256 p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint256,address,uint256,string)", p0, p1, p2, p3)); + } + + function log(uint256 p0, address p1, uint256 p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint256,address,uint256,bool)", p0, p1, p2, p3)); + } + + function log(uint256 p0, address p1, uint256 p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint256,address,uint256,address)", p0, p1, p2, p3)); + } + + function log(uint256 p0, address p1, string memory p2, uint256 p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint256,address,string,uint256)", p0, p1, p2, p3)); + } + + function log(uint256 p0, address p1, string memory p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint256,address,string,string)", p0, p1, p2, p3)); + } + + function log(uint256 p0, address p1, string memory p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint256,address,string,bool)", p0, p1, p2, p3)); + } + + function log(uint256 p0, address p1, string memory p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint256,address,string,address)", p0, p1, p2, p3)); + } + + function log(uint256 p0, address p1, bool p2, uint256 p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint256,address,bool,uint256)", p0, p1, p2, p3)); + } + + function log(uint256 p0, address p1, bool p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint256,address,bool,string)", p0, p1, p2, p3)); + } + + function log(uint256 p0, address p1, bool p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint256,address,bool,bool)", p0, p1, p2, p3)); + } + + function log(uint256 p0, address p1, bool p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint256,address,bool,address)", p0, p1, p2, p3)); + } + + function log(uint256 p0, address p1, address p2, uint256 p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint256,address,address,uint256)", p0, p1, p2, p3)); + } + + function log(uint256 p0, address p1, address p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint256,address,address,string)", p0, p1, p2, p3)); + } + + function log(uint256 p0, address p1, address p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint256,address,address,bool)", p0, p1, p2, p3)); + } + + function log(uint256 p0, address p1, address p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint256,address,address,address)", p0, p1, p2, p3)); + } + + function log(string memory p0, uint256 p1, uint256 p2, uint256 p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,uint256,uint256,uint256)", p0, p1, p2, p3)); + } + + function log(string memory p0, uint256 p1, uint256 p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,uint256,uint256,string)", p0, p1, p2, p3)); + } + + function log(string memory p0, uint256 p1, uint256 p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,uint256,uint256,bool)", p0, p1, p2, p3)); + } + + function log(string memory p0, uint256 p1, uint256 p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,uint256,uint256,address)", p0, p1, p2, p3)); + } + + function log(string memory p0, uint256 p1, string memory p2, uint256 p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,uint256,string,uint256)", p0, p1, p2, p3)); + } + + function log(string memory p0, uint256 p1, string memory p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,uint256,string,string)", p0, p1, p2, p3)); + } + + function log(string memory p0, uint256 p1, string memory p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,uint256,string,bool)", p0, p1, p2, p3)); + } + + function log(string memory p0, uint256 p1, string memory p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,uint256,string,address)", p0, p1, p2, p3)); + } + + function log(string memory p0, uint256 p1, bool p2, uint256 p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,uint256,bool,uint256)", p0, p1, p2, p3)); + } + + function log(string memory p0, uint256 p1, bool p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,uint256,bool,string)", p0, p1, p2, p3)); + } + + function log(string memory p0, uint256 p1, bool p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,uint256,bool,bool)", p0, p1, p2, p3)); + } + + function log(string memory p0, uint256 p1, bool p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,uint256,bool,address)", p0, p1, p2, p3)); + } + + function log(string memory p0, uint256 p1, address p2, uint256 p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,uint256,address,uint256)", p0, p1, p2, p3)); + } + + function log(string memory p0, uint256 p1, address p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,uint256,address,string)", p0, p1, p2, p3)); + } + + function log(string memory p0, uint256 p1, address p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,uint256,address,bool)", p0, p1, p2, p3)); + } + + function log(string memory p0, uint256 p1, address p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,uint256,address,address)", p0, p1, p2, p3)); + } + + function log(string memory p0, string memory p1, uint256 p2, uint256 p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,string,uint256,uint256)", p0, p1, p2, p3)); + } + + function log(string memory p0, string memory p1, uint256 p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,string,uint256,string)", p0, p1, p2, p3)); + } + + function log(string memory p0, string memory p1, uint256 p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,string,uint256,bool)", p0, p1, p2, p3)); + } + + function log(string memory p0, string memory p1, uint256 p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,string,uint256,address)", p0, p1, p2, p3)); + } + + function log(string memory p0, string memory p1, string memory p2, uint256 p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,string,string,uint256)", p0, p1, p2, p3)); + } + + function log(string memory p0, string memory p1, string memory p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,string,string,string)", p0, p1, p2, p3)); + } + + function log(string memory p0, string memory p1, string memory p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,string,string,bool)", p0, p1, p2, p3)); + } + + function log(string memory p0, string memory p1, string memory p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,string,string,address)", p0, p1, p2, p3)); + } + + function log(string memory p0, string memory p1, bool p2, uint256 p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,string,bool,uint256)", p0, p1, p2, p3)); + } + + function log(string memory p0, string memory p1, bool p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,string,bool,string)", p0, p1, p2, p3)); + } + + function log(string memory p0, string memory p1, bool p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,string,bool,bool)", p0, p1, p2, p3)); + } + + function log(string memory p0, string memory p1, bool p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,string,bool,address)", p0, p1, p2, p3)); + } + + function log(string memory p0, string memory p1, address p2, uint256 p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,string,address,uint256)", p0, p1, p2, p3)); + } + + function log(string memory p0, string memory p1, address p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,string,address,string)", p0, p1, p2, p3)); + } + + function log(string memory p0, string memory p1, address p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,string,address,bool)", p0, p1, p2, p3)); + } + + function log(string memory p0, string memory p1, address p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,string,address,address)", p0, p1, p2, p3)); + } + + function log(string memory p0, bool p1, uint256 p2, uint256 p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,bool,uint256,uint256)", p0, p1, p2, p3)); + } + + function log(string memory p0, bool p1, uint256 p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,bool,uint256,string)", p0, p1, p2, p3)); + } + + function log(string memory p0, bool p1, uint256 p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,bool,uint256,bool)", p0, p1, p2, p3)); + } + + function log(string memory p0, bool p1, uint256 p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,bool,uint256,address)", p0, p1, p2, p3)); + } + + function log(string memory p0, bool p1, string memory p2, uint256 p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,bool,string,uint256)", p0, p1, p2, p3)); + } + + function log(string memory p0, bool p1, string memory p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,bool,string,string)", p0, p1, p2, p3)); + } + + function log(string memory p0, bool p1, string memory p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,bool,string,bool)", p0, p1, p2, p3)); + } + + function log(string memory p0, bool p1, string memory p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,bool,string,address)", p0, p1, p2, p3)); + } + + function log(string memory p0, bool p1, bool p2, uint256 p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,bool,bool,uint256)", p0, p1, p2, p3)); + } + + function log(string memory p0, bool p1, bool p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,bool,bool,string)", p0, p1, p2, p3)); + } + + function log(string memory p0, bool p1, bool p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,bool,bool,bool)", p0, p1, p2, p3)); + } + + function log(string memory p0, bool p1, bool p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,bool,bool,address)", p0, p1, p2, p3)); + } + + function log(string memory p0, bool p1, address p2, uint256 p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,bool,address,uint256)", p0, p1, p2, p3)); + } + + function log(string memory p0, bool p1, address p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,bool,address,string)", p0, p1, p2, p3)); + } + + function log(string memory p0, bool p1, address p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,bool,address,bool)", p0, p1, p2, p3)); + } + + function log(string memory p0, bool p1, address p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,bool,address,address)", p0, p1, p2, p3)); + } + + function log(string memory p0, address p1, uint256 p2, uint256 p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,address,uint256,uint256)", p0, p1, p2, p3)); + } + + function log(string memory p0, address p1, uint256 p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,address,uint256,string)", p0, p1, p2, p3)); + } + + function log(string memory p0, address p1, uint256 p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,address,uint256,bool)", p0, p1, p2, p3)); + } + + function log(string memory p0, address p1, uint256 p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,address,uint256,address)", p0, p1, p2, p3)); + } + + function log(string memory p0, address p1, string memory p2, uint256 p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,address,string,uint256)", p0, p1, p2, p3)); + } + + function log(string memory p0, address p1, string memory p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,address,string,string)", p0, p1, p2, p3)); + } + + function log(string memory p0, address p1, string memory p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,address,string,bool)", p0, p1, p2, p3)); + } + + function log(string memory p0, address p1, string memory p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,address,string,address)", p0, p1, p2, p3)); + } + + function log(string memory p0, address p1, bool p2, uint256 p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,address,bool,uint256)", p0, p1, p2, p3)); + } + + function log(string memory p0, address p1, bool p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,address,bool,string)", p0, p1, p2, p3)); + } + + function log(string memory p0, address p1, bool p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,address,bool,bool)", p0, p1, p2, p3)); + } + + function log(string memory p0, address p1, bool p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,address,bool,address)", p0, p1, p2, p3)); + } + + function log(string memory p0, address p1, address p2, uint256 p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,address,address,uint256)", p0, p1, p2, p3)); + } + + function log(string memory p0, address p1, address p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,address,address,string)", p0, p1, p2, p3)); + } + + function log(string memory p0, address p1, address p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,address,address,bool)", p0, p1, p2, p3)); + } + + function log(string memory p0, address p1, address p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,address,address,address)", p0, p1, p2, p3)); + } + + function log(bool p0, uint256 p1, uint256 p2, uint256 p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,uint256,uint256,uint256)", p0, p1, p2, p3)); + } + + function log(bool p0, uint256 p1, uint256 p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,uint256,uint256,string)", p0, p1, p2, p3)); + } + + function log(bool p0, uint256 p1, uint256 p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,uint256,uint256,bool)", p0, p1, p2, p3)); + } + + function log(bool p0, uint256 p1, uint256 p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,uint256,uint256,address)", p0, p1, p2, p3)); + } + + function log(bool p0, uint256 p1, string memory p2, uint256 p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,uint256,string,uint256)", p0, p1, p2, p3)); + } + + function log(bool p0, uint256 p1, string memory p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,uint256,string,string)", p0, p1, p2, p3)); + } + + function log(bool p0, uint256 p1, string memory p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,uint256,string,bool)", p0, p1, p2, p3)); + } + + function log(bool p0, uint256 p1, string memory p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,uint256,string,address)", p0, p1, p2, p3)); + } + + function log(bool p0, uint256 p1, bool p2, uint256 p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,uint256,bool,uint256)", p0, p1, p2, p3)); + } + + function log(bool p0, uint256 p1, bool p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,uint256,bool,string)", p0, p1, p2, p3)); + } + + function log(bool p0, uint256 p1, bool p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,uint256,bool,bool)", p0, p1, p2, p3)); + } + + function log(bool p0, uint256 p1, bool p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,uint256,bool,address)", p0, p1, p2, p3)); + } + + function log(bool p0, uint256 p1, address p2, uint256 p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,uint256,address,uint256)", p0, p1, p2, p3)); + } + + function log(bool p0, uint256 p1, address p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,uint256,address,string)", p0, p1, p2, p3)); + } + + function log(bool p0, uint256 p1, address p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,uint256,address,bool)", p0, p1, p2, p3)); + } + + function log(bool p0, uint256 p1, address p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,uint256,address,address)", p0, p1, p2, p3)); + } + + function log(bool p0, string memory p1, uint256 p2, uint256 p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,string,uint256,uint256)", p0, p1, p2, p3)); + } + + function log(bool p0, string memory p1, uint256 p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,string,uint256,string)", p0, p1, p2, p3)); + } + + function log(bool p0, string memory p1, uint256 p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,string,uint256,bool)", p0, p1, p2, p3)); + } + + function log(bool p0, string memory p1, uint256 p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,string,uint256,address)", p0, p1, p2, p3)); + } + + function log(bool p0, string memory p1, string memory p2, uint256 p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,string,string,uint256)", p0, p1, p2, p3)); + } + + function log(bool p0, string memory p1, string memory p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,string,string,string)", p0, p1, p2, p3)); + } + + function log(bool p0, string memory p1, string memory p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,string,string,bool)", p0, p1, p2, p3)); + } + + function log(bool p0, string memory p1, string memory p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,string,string,address)", p0, p1, p2, p3)); + } + + function log(bool p0, string memory p1, bool p2, uint256 p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,string,bool,uint256)", p0, p1, p2, p3)); + } + + function log(bool p0, string memory p1, bool p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,string,bool,string)", p0, p1, p2, p3)); + } + + function log(bool p0, string memory p1, bool p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,string,bool,bool)", p0, p1, p2, p3)); + } + + function log(bool p0, string memory p1, bool p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,string,bool,address)", p0, p1, p2, p3)); + } + + function log(bool p0, string memory p1, address p2, uint256 p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,string,address,uint256)", p0, p1, p2, p3)); + } + + function log(bool p0, string memory p1, address p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,string,address,string)", p0, p1, p2, p3)); + } + + function log(bool p0, string memory p1, address p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,string,address,bool)", p0, p1, p2, p3)); + } + + function log(bool p0, string memory p1, address p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,string,address,address)", p0, p1, p2, p3)); + } + + function log(bool p0, bool p1, uint256 p2, uint256 p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,bool,uint256,uint256)", p0, p1, p2, p3)); + } + + function log(bool p0, bool p1, uint256 p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,bool,uint256,string)", p0, p1, p2, p3)); + } + + function log(bool p0, bool p1, uint256 p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,bool,uint256,bool)", p0, p1, p2, p3)); + } + + function log(bool p0, bool p1, uint256 p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,bool,uint256,address)", p0, p1, p2, p3)); + } + + function log(bool p0, bool p1, string memory p2, uint256 p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,bool,string,uint256)", p0, p1, p2, p3)); + } + + function log(bool p0, bool p1, string memory p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,bool,string,string)", p0, p1, p2, p3)); + } + + function log(bool p0, bool p1, string memory p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,bool,string,bool)", p0, p1, p2, p3)); + } + + function log(bool p0, bool p1, string memory p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,bool,string,address)", p0, p1, p2, p3)); + } + + function log(bool p0, bool p1, bool p2, uint256 p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,bool,bool,uint256)", p0, p1, p2, p3)); + } + + function log(bool p0, bool p1, bool p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,bool,bool,string)", p0, p1, p2, p3)); + } + + function log(bool p0, bool p1, bool p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,bool,bool,bool)", p0, p1, p2, p3)); + } + + function log(bool p0, bool p1, bool p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,bool,bool,address)", p0, p1, p2, p3)); + } + + function log(bool p0, bool p1, address p2, uint256 p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,bool,address,uint256)", p0, p1, p2, p3)); + } + + function log(bool p0, bool p1, address p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,bool,address,string)", p0, p1, p2, p3)); + } + + function log(bool p0, bool p1, address p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,bool,address,bool)", p0, p1, p2, p3)); + } + + function log(bool p0, bool p1, address p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,bool,address,address)", p0, p1, p2, p3)); + } + + function log(bool p0, address p1, uint256 p2, uint256 p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,address,uint256,uint256)", p0, p1, p2, p3)); + } + + function log(bool p0, address p1, uint256 p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,address,uint256,string)", p0, p1, p2, p3)); + } + + function log(bool p0, address p1, uint256 p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,address,uint256,bool)", p0, p1, p2, p3)); + } + + function log(bool p0, address p1, uint256 p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,address,uint256,address)", p0, p1, p2, p3)); + } + + function log(bool p0, address p1, string memory p2, uint256 p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,address,string,uint256)", p0, p1, p2, p3)); + } + + function log(bool p0, address p1, string memory p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,address,string,string)", p0, p1, p2, p3)); + } + + function log(bool p0, address p1, string memory p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,address,string,bool)", p0, p1, p2, p3)); + } + + function log(bool p0, address p1, string memory p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,address,string,address)", p0, p1, p2, p3)); + } + + function log(bool p0, address p1, bool p2, uint256 p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,address,bool,uint256)", p0, p1, p2, p3)); + } + + function log(bool p0, address p1, bool p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,address,bool,string)", p0, p1, p2, p3)); + } + + function log(bool p0, address p1, bool p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,address,bool,bool)", p0, p1, p2, p3)); + } + + function log(bool p0, address p1, bool p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,address,bool,address)", p0, p1, p2, p3)); + } + + function log(bool p0, address p1, address p2, uint256 p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,address,address,uint256)", p0, p1, p2, p3)); + } + + function log(bool p0, address p1, address p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,address,address,string)", p0, p1, p2, p3)); + } + + function log(bool p0, address p1, address p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,address,address,bool)", p0, p1, p2, p3)); + } + + function log(bool p0, address p1, address p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,address,address,address)", p0, p1, p2, p3)); + } + + function log(address p0, uint256 p1, uint256 p2, uint256 p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,uint256,uint256,uint256)", p0, p1, p2, p3)); + } + + function log(address p0, uint256 p1, uint256 p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,uint256,uint256,string)", p0, p1, p2, p3)); + } + + function log(address p0, uint256 p1, uint256 p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,uint256,uint256,bool)", p0, p1, p2, p3)); + } + + function log(address p0, uint256 p1, uint256 p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,uint256,uint256,address)", p0, p1, p2, p3)); + } + + function log(address p0, uint256 p1, string memory p2, uint256 p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,uint256,string,uint256)", p0, p1, p2, p3)); + } + + function log(address p0, uint256 p1, string memory p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,uint256,string,string)", p0, p1, p2, p3)); + } + + function log(address p0, uint256 p1, string memory p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,uint256,string,bool)", p0, p1, p2, p3)); + } + + function log(address p0, uint256 p1, string memory p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,uint256,string,address)", p0, p1, p2, p3)); + } + + function log(address p0, uint256 p1, bool p2, uint256 p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,uint256,bool,uint256)", p0, p1, p2, p3)); + } + + function log(address p0, uint256 p1, bool p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,uint256,bool,string)", p0, p1, p2, p3)); + } + + function log(address p0, uint256 p1, bool p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,uint256,bool,bool)", p0, p1, p2, p3)); + } + + function log(address p0, uint256 p1, bool p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,uint256,bool,address)", p0, p1, p2, p3)); + } + + function log(address p0, uint256 p1, address p2, uint256 p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,uint256,address,uint256)", p0, p1, p2, p3)); + } + + function log(address p0, uint256 p1, address p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,uint256,address,string)", p0, p1, p2, p3)); + } + + function log(address p0, uint256 p1, address p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,uint256,address,bool)", p0, p1, p2, p3)); + } + + function log(address p0, uint256 p1, address p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,uint256,address,address)", p0, p1, p2, p3)); + } + + function log(address p0, string memory p1, uint256 p2, uint256 p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,string,uint256,uint256)", p0, p1, p2, p3)); + } + + function log(address p0, string memory p1, uint256 p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,string,uint256,string)", p0, p1, p2, p3)); + } + + function log(address p0, string memory p1, uint256 p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,string,uint256,bool)", p0, p1, p2, p3)); + } + + function log(address p0, string memory p1, uint256 p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,string,uint256,address)", p0, p1, p2, p3)); + } + + function log(address p0, string memory p1, string memory p2, uint256 p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,string,string,uint256)", p0, p1, p2, p3)); + } + + function log(address p0, string memory p1, string memory p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,string,string,string)", p0, p1, p2, p3)); + } + + function log(address p0, string memory p1, string memory p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,string,string,bool)", p0, p1, p2, p3)); + } + + function log(address p0, string memory p1, string memory p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,string,string,address)", p0, p1, p2, p3)); + } + + function log(address p0, string memory p1, bool p2, uint256 p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,string,bool,uint256)", p0, p1, p2, p3)); + } + + function log(address p0, string memory p1, bool p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,string,bool,string)", p0, p1, p2, p3)); + } + + function log(address p0, string memory p1, bool p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,string,bool,bool)", p0, p1, p2, p3)); + } + + function log(address p0, string memory p1, bool p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,string,bool,address)", p0, p1, p2, p3)); + } + + function log(address p0, string memory p1, address p2, uint256 p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,string,address,uint256)", p0, p1, p2, p3)); + } + + function log(address p0, string memory p1, address p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,string,address,string)", p0, p1, p2, p3)); + } + + function log(address p0, string memory p1, address p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,string,address,bool)", p0, p1, p2, p3)); + } + + function log(address p0, string memory p1, address p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,string,address,address)", p0, p1, p2, p3)); + } + + function log(address p0, bool p1, uint256 p2, uint256 p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,bool,uint256,uint256)", p0, p1, p2, p3)); + } + + function log(address p0, bool p1, uint256 p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,bool,uint256,string)", p0, p1, p2, p3)); + } + + function log(address p0, bool p1, uint256 p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,bool,uint256,bool)", p0, p1, p2, p3)); + } + + function log(address p0, bool p1, uint256 p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,bool,uint256,address)", p0, p1, p2, p3)); + } + + function log(address p0, bool p1, string memory p2, uint256 p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,bool,string,uint256)", p0, p1, p2, p3)); + } + + function log(address p0, bool p1, string memory p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,bool,string,string)", p0, p1, p2, p3)); + } + + function log(address p0, bool p1, string memory p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,bool,string,bool)", p0, p1, p2, p3)); + } + + function log(address p0, bool p1, string memory p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,bool,string,address)", p0, p1, p2, p3)); + } + + function log(address p0, bool p1, bool p2, uint256 p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,bool,bool,uint256)", p0, p1, p2, p3)); + } + + function log(address p0, bool p1, bool p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,bool,bool,string)", p0, p1, p2, p3)); + } + + function log(address p0, bool p1, bool p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,bool,bool,bool)", p0, p1, p2, p3)); + } + + function log(address p0, bool p1, bool p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,bool,bool,address)", p0, p1, p2, p3)); + } + + function log(address p0, bool p1, address p2, uint256 p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,bool,address,uint256)", p0, p1, p2, p3)); + } + + function log(address p0, bool p1, address p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,bool,address,string)", p0, p1, p2, p3)); + } + + function log(address p0, bool p1, address p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,bool,address,bool)", p0, p1, p2, p3)); + } + + function log(address p0, bool p1, address p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,bool,address,address)", p0, p1, p2, p3)); + } + + function log(address p0, address p1, uint256 p2, uint256 p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,address,uint256,uint256)", p0, p1, p2, p3)); + } + + function log(address p0, address p1, uint256 p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,address,uint256,string)", p0, p1, p2, p3)); + } + + function log(address p0, address p1, uint256 p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,address,uint256,bool)", p0, p1, p2, p3)); + } + + function log(address p0, address p1, uint256 p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,address,uint256,address)", p0, p1, p2, p3)); + } + + function log(address p0, address p1, string memory p2, uint256 p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,address,string,uint256)", p0, p1, p2, p3)); + } + + function log(address p0, address p1, string memory p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,address,string,string)", p0, p1, p2, p3)); + } + + function log(address p0, address p1, string memory p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,address,string,bool)", p0, p1, p2, p3)); + } + + function log(address p0, address p1, string memory p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,address,string,address)", p0, p1, p2, p3)); + } + + function log(address p0, address p1, bool p2, uint256 p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,address,bool,uint256)", p0, p1, p2, p3)); + } + + function log(address p0, address p1, bool p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,address,bool,string)", p0, p1, p2, p3)); + } + + function log(address p0, address p1, bool p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,address,bool,bool)", p0, p1, p2, p3)); + } + + function log(address p0, address p1, bool p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,address,bool,address)", p0, p1, p2, p3)); + } + + function log(address p0, address p1, address p2, uint256 p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,address,address,uint256)", p0, p1, p2, p3)); + } + + function log(address p0, address p1, address p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,address,address,string)", p0, p1, p2, p3)); + } + + function log(address p0, address p1, address p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,address,address,bool)", p0, p1, p2, p3)); + } + + function log(address p0, address p1, address p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,address,address,address)", p0, p1, p2, p3)); + } + +} \ No newline at end of file diff --git a/lib/forge-std/src/interfaces/IERC1155.sol b/lib/forge-std/src/interfaces/IERC1155.sol new file mode 100644 index 0000000..f7dd2b4 --- /dev/null +++ b/lib/forge-std/src/interfaces/IERC1155.sol @@ -0,0 +1,105 @@ +// SPDX-License-Identifier: MIT +pragma solidity >=0.6.2; + +import "./IERC165.sol"; + +/// @title ERC-1155 Multi Token Standard +/// @dev See https://eips.ethereum.org/EIPS/eip-1155 +/// Note: The ERC-165 identifier for this interface is 0xd9b67a26. +interface IERC1155 is IERC165 { + /// @dev + /// - Either `TransferSingle` or `TransferBatch` MUST emit when tokens are transferred, including zero value transfers as well as minting or burning (see "Safe Transfer Rules" section of the standard). + /// - The `_operator` argument MUST be the address of an account/contract that is approved to make the transfer (SHOULD be msg.sender). + /// - The `_from` argument MUST be the address of the holder whose balance is decreased. + /// - The `_to` argument MUST be the address of the recipient whose balance is increased. + /// - The `_id` argument MUST be the token type being transferred. + /// - The `_value` argument MUST be the number of tokens the holder balance is decreased by and match what the recipient balance is increased by. + /// - When minting/creating tokens, the `_from` argument MUST be set to `0x0` (i.e. zero address). + /// - When burning/destroying tokens, the `_to` argument MUST be set to `0x0` (i.e. zero address). + event TransferSingle( + address indexed _operator, address indexed _from, address indexed _to, uint256 _id, uint256 _value + ); + + /// @dev + /// - Either `TransferSingle` or `TransferBatch` MUST emit when tokens are transferred, including zero value transfers as well as minting or burning (see "Safe Transfer Rules" section of the standard). + /// - The `_operator` argument MUST be the address of an account/contract that is approved to make the transfer (SHOULD be msg.sender). + /// - The `_from` argument MUST be the address of the holder whose balance is decreased. + /// - The `_to` argument MUST be the address of the recipient whose balance is increased. + /// - The `_ids` argument MUST be the list of tokens being transferred. + /// - The `_values` argument MUST be the list of number of tokens (matching the list and order of tokens specified in _ids) the holder balance is decreased by and match what the recipient balance is increased by. + /// - When minting/creating tokens, the `_from` argument MUST be set to `0x0` (i.e. zero address). + /// - When burning/destroying tokens, the `_to` argument MUST be set to `0x0` (i.e. zero address). + event TransferBatch( + address indexed _operator, address indexed _from, address indexed _to, uint256[] _ids, uint256[] _values + ); + + /// @dev MUST emit when approval for a second party/operator address to manage all tokens for an owner address is enabled or disabled (absence of an event assumes disabled). + event ApprovalForAll(address indexed _owner, address indexed _operator, bool _approved); + + /// @dev MUST emit when the URI is updated for a token ID. URIs are defined in RFC 3986. + /// The URI MUST point to a JSON file that conforms to the "ERC-1155 Metadata URI JSON Schema". + event URI(string _value, uint256 indexed _id); + + /// @notice Transfers `_value` amount of an `_id` from the `_from` address to the `_to` address specified (with safety call). + /// @dev Caller must be approved to manage the tokens being transferred out of the `_from` account (see "Approval" section of the standard). + /// - MUST revert if `_to` is the zero address. + /// - MUST revert if balance of holder for token `_id` is lower than the `_value` sent. + /// - MUST revert on any other error. + /// - MUST emit the `TransferSingle` event to reflect the balance change (see "Safe Transfer Rules" section of the standard). + /// - After the above conditions are met, this function MUST check if `_to` is a smart contract (e.g. code size > 0). If so, it MUST call `onERC1155Received` on `_to` and act appropriately (see "Safe Transfer Rules" section of the standard). + /// @param _from Source address + /// @param _to Target address + /// @param _id ID of the token type + /// @param _value Transfer amount + /// @param _data Additional data with no specified format, MUST be sent unaltered in call to `onERC1155Received` on `_to` + function safeTransferFrom(address _from, address _to, uint256 _id, uint256 _value, bytes calldata _data) external; + + /// @notice Transfers `_values` amount(s) of `_ids` from the `_from` address to the `_to` address specified (with safety call). + /// @dev Caller must be approved to manage the tokens being transferred out of the `_from` account (see "Approval" section of the standard). + /// - MUST revert if `_to` is the zero address. + /// - MUST revert if length of `_ids` is not the same as length of `_values`. + /// - MUST revert if any of the balance(s) of the holder(s) for token(s) in `_ids` is lower than the respective amount(s) in `_values` sent to the recipient. + /// - MUST revert on any other error. + /// - MUST emit `TransferSingle` or `TransferBatch` event(s) such that all the balance changes are reflected (see "Safe Transfer Rules" section of the standard). + /// - Balance changes and events MUST follow the ordering of the arrays (_ids[0]/_values[0] before _ids[1]/_values[1], etc). + /// - After the above conditions for the transfer(s) in the batch are met, this function MUST check if `_to` is a smart contract (e.g. code size > 0). If so, it MUST call the relevant `ERC1155TokenReceiver` hook(s) on `_to` and act appropriately (see "Safe Transfer Rules" section of the standard). + /// @param _from Source address + /// @param _to Target address + /// @param _ids IDs of each token type (order and length must match _values array) + /// @param _values Transfer amounts per token type (order and length must match _ids array) + /// @param _data Additional data with no specified format, MUST be sent unaltered in call to the `ERC1155TokenReceiver` hook(s) on `_to` + function safeBatchTransferFrom( + address _from, + address _to, + uint256[] calldata _ids, + uint256[] calldata _values, + bytes calldata _data + ) external; + + /// @notice Get the balance of an account's tokens. + /// @param _owner The address of the token holder + /// @param _id ID of the token + /// @return The _owner's balance of the token type requested + function balanceOf(address _owner, uint256 _id) external view returns (uint256); + + /// @notice Get the balance of multiple account/token pairs + /// @param _owners The addresses of the token holders + /// @param _ids ID of the tokens + /// @return The _owner's balance of the token types requested (i.e. balance for each (owner, id) pair) + function balanceOfBatch(address[] calldata _owners, uint256[] calldata _ids) + external + view + returns (uint256[] memory); + + /// @notice Enable or disable approval for a third party ("operator") to manage all of the caller's tokens. + /// @dev MUST emit the ApprovalForAll event on success. + /// @param _operator Address to add to the set of authorized operators + /// @param _approved True if the operator is approved, false to revoke approval + function setApprovalForAll(address _operator, bool _approved) external; + + /// @notice Queries the approval status of an operator for a given owner. + /// @param _owner The owner of the tokens + /// @param _operator Address of authorized operator + /// @return True if the operator is approved, false if not + function isApprovedForAll(address _owner, address _operator) external view returns (bool); +} diff --git a/lib/forge-std/src/interfaces/IERC165.sol b/lib/forge-std/src/interfaces/IERC165.sol new file mode 100644 index 0000000..9af4bf8 --- /dev/null +++ b/lib/forge-std/src/interfaces/IERC165.sol @@ -0,0 +1,12 @@ +// SPDX-License-Identifier: MIT +pragma solidity >=0.6.2; + +interface IERC165 { + /// @notice Query if a contract implements an interface + /// @param interfaceID The interface identifier, as specified in ERC-165 + /// @dev Interface identification is specified in ERC-165. This function + /// uses less than 30,000 gas. + /// @return `true` if the contract implements `interfaceID` and + /// `interfaceID` is not 0xffffffff, `false` otherwise + function supportsInterface(bytes4 interfaceID) external view returns (bool); +} diff --git a/lib/forge-std/src/interfaces/IERC20.sol b/lib/forge-std/src/interfaces/IERC20.sol new file mode 100644 index 0000000..ba40806 --- /dev/null +++ b/lib/forge-std/src/interfaces/IERC20.sol @@ -0,0 +1,43 @@ +// SPDX-License-Identifier: MIT +pragma solidity >=0.6.2; + +/// @dev Interface of the ERC20 standard as defined in the EIP. +/// @dev This includes the optional name, symbol, and decimals metadata. +interface IERC20 { + /// @dev Emitted when `value` tokens are moved from one account (`from`) to another (`to`). + event Transfer(address indexed from, address indexed to, uint256 value); + + /// @dev Emitted when the allowance of a `spender` for an `owner` is set, where `value` + /// is the new allowance. + event Approval(address indexed owner, address indexed spender, uint256 value); + + /// @notice Returns the amount of tokens in existence. + function totalSupply() external view returns (uint256); + + /// @notice Returns the amount of tokens owned by `account`. + function balanceOf(address account) external view returns (uint256); + + /// @notice Moves `amount` tokens from the caller's account to `to`. + function transfer(address to, uint256 amount) external returns (bool); + + /// @notice Returns the remaining number of tokens that `spender` is allowed + /// to spend on behalf of `owner` + function allowance(address owner, address spender) external view returns (uint256); + + /// @notice Sets `amount` as the allowance of `spender` over the caller's tokens. + /// @dev Be aware of front-running risks: https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729 + function approve(address spender, uint256 amount) external returns (bool); + + /// @notice Moves `amount` tokens from `from` to `to` using the allowance mechanism. + /// `amount` is then deducted from the caller's allowance. + function transferFrom(address from, address to, uint256 amount) external returns (bool); + + /// @notice Returns the name of the token. + function name() external view returns (string memory); + + /// @notice Returns the symbol of the token. + function symbol() external view returns (string memory); + + /// @notice Returns the decimals places of the token. + function decimals() external view returns (uint8); +} diff --git a/lib/forge-std/src/interfaces/IERC4626.sol b/lib/forge-std/src/interfaces/IERC4626.sol new file mode 100644 index 0000000..bfe3a11 --- /dev/null +++ b/lib/forge-std/src/interfaces/IERC4626.sol @@ -0,0 +1,190 @@ +// SPDX-License-Identifier: MIT +pragma solidity >=0.6.2; + +import "./IERC20.sol"; + +/// @dev Interface of the ERC4626 "Tokenized Vault Standard", as defined in +/// https://eips.ethereum.org/EIPS/eip-4626 +interface IERC4626 is IERC20 { + event Deposit(address indexed sender, address indexed owner, uint256 assets, uint256 shares); + + event Withdraw( + address indexed sender, address indexed receiver, address indexed owner, uint256 assets, uint256 shares + ); + + /// @notice Returns the address of the underlying token used for the Vault for accounting, depositing, and withdrawing. + /// @dev + /// - MUST be an ERC-20 token contract. + /// - MUST NOT revert. + function asset() external view returns (address assetTokenAddress); + + /// @notice Returns the total amount of the underlying asset that is “managed” by Vault. + /// @dev + /// - SHOULD include any compounding that occurs from yield. + /// - MUST be inclusive of any fees that are charged against assets in the Vault. + /// - MUST NOT revert. + function totalAssets() external view returns (uint256 totalManagedAssets); + + /// @notice Returns the amount of shares that the Vault would exchange for the amount of assets provided, in an ideal + /// scenario where all the conditions are met. + /// @dev + /// - MUST NOT be inclusive of any fees that are charged against assets in the Vault. + /// - MUST NOT show any variations depending on the caller. + /// - MUST NOT reflect slippage or other on-chain conditions, when performing the actual exchange. + /// - MUST NOT revert. + /// + /// NOTE: This calculation MAY NOT reflect the “per-user” price-per-share, and instead should reflect the + /// “average-user’s” price-per-share, meaning what the average user should expect to see when exchanging to and + /// from. + function convertToShares(uint256 assets) external view returns (uint256 shares); + + /// @notice Returns the amount of assets that the Vault would exchange for the amount of shares provided, in an ideal + /// scenario where all the conditions are met. + /// @dev + /// - MUST NOT be inclusive of any fees that are charged against assets in the Vault. + /// - MUST NOT show any variations depending on the caller. + /// - MUST NOT reflect slippage or other on-chain conditions, when performing the actual exchange. + /// - MUST NOT revert. + /// + /// NOTE: This calculation MAY NOT reflect the “per-user” price-per-share, and instead should reflect the + /// “average-user’s” price-per-share, meaning what the average user should expect to see when exchanging to and + /// from. + function convertToAssets(uint256 shares) external view returns (uint256 assets); + + /// @notice Returns the maximum amount of the underlying asset that can be deposited into the Vault for the receiver, + /// through a deposit call. + /// @dev + /// - MUST return a limited value if receiver is subject to some deposit limit. + /// - MUST return 2 ** 256 - 1 if there is no limit on the maximum amount of assets that may be deposited. + /// - MUST NOT revert. + function maxDeposit(address receiver) external view returns (uint256 maxAssets); + + /// @notice Allows an on-chain or off-chain user to simulate the effects of their deposit at the current block, given + /// current on-chain conditions. + /// @dev + /// - MUST return as close to and no more than the exact amount of Vault shares that would be minted in a deposit + /// call in the same transaction. I.e. deposit should return the same or more shares as previewDeposit if called + /// in the same transaction. + /// - MUST NOT account for deposit limits like those returned from maxDeposit and should always act as though the + /// deposit would be accepted, regardless if the user has enough tokens approved, etc. + /// - MUST be inclusive of deposit fees. Integrators should be aware of the existence of deposit fees. + /// - MUST NOT revert. + /// + /// NOTE: any unfavorable discrepancy between convertToShares and previewDeposit SHOULD be considered slippage in + /// share price or some other type of condition, meaning the depositor will lose assets by depositing. + function previewDeposit(uint256 assets) external view returns (uint256 shares); + + /// @notice Mints shares Vault shares to receiver by depositing exactly amount of underlying tokens. + /// @dev + /// - MUST emit the Deposit event. + /// - MAY support an additional flow in which the underlying tokens are owned by the Vault contract before the + /// deposit execution, and are accounted for during deposit. + /// - MUST revert if all of assets cannot be deposited (due to deposit limit being reached, slippage, the user not + /// approving enough underlying tokens to the Vault contract, etc). + /// + /// NOTE: most implementations will require pre-approval of the Vault with the Vault’s underlying asset token. + function deposit(uint256 assets, address receiver) external returns (uint256 shares); + + /// @notice Returns the maximum amount of the Vault shares that can be minted for the receiver, through a mint call. + /// @dev + /// - MUST return a limited value if receiver is subject to some mint limit. + /// - MUST return 2 ** 256 - 1 if there is no limit on the maximum amount of shares that may be minted. + /// - MUST NOT revert. + function maxMint(address receiver) external view returns (uint256 maxShares); + + /// @notice Allows an on-chain or off-chain user to simulate the effects of their mint at the current block, given + /// current on-chain conditions. + /// @dev + /// - MUST return as close to and no fewer than the exact amount of assets that would be deposited in a mint call + /// in the same transaction. I.e. mint should return the same or fewer assets as previewMint if called in the + /// same transaction. + /// - MUST NOT account for mint limits like those returned from maxMint and should always act as though the mint + /// would be accepted, regardless if the user has enough tokens approved, etc. + /// - MUST be inclusive of deposit fees. Integrators should be aware of the existence of deposit fees. + /// - MUST NOT revert. + /// + /// NOTE: any unfavorable discrepancy between convertToAssets and previewMint SHOULD be considered slippage in + /// share price or some other type of condition, meaning the depositor will lose assets by minting. + function previewMint(uint256 shares) external view returns (uint256 assets); + + /// @notice Mints exactly shares Vault shares to receiver by depositing amount of underlying tokens. + /// @dev + /// - MUST emit the Deposit event. + /// - MAY support an additional flow in which the underlying tokens are owned by the Vault contract before the mint + /// execution, and are accounted for during mint. + /// - MUST revert if all of shares cannot be minted (due to deposit limit being reached, slippage, the user not + /// approving enough underlying tokens to the Vault contract, etc). + /// + /// NOTE: most implementations will require pre-approval of the Vault with the Vault’s underlying asset token. + function mint(uint256 shares, address receiver) external returns (uint256 assets); + + /// @notice Returns the maximum amount of the underlying asset that can be withdrawn from the owner balance in the + /// Vault, through a withdraw call. + /// @dev + /// - MUST return a limited value if owner is subject to some withdrawal limit or timelock. + /// - MUST NOT revert. + function maxWithdraw(address owner) external view returns (uint256 maxAssets); + + /// @notice Allows an on-chain or off-chain user to simulate the effects of their withdrawal at the current block, + /// given current on-chain conditions. + /// @dev + /// - MUST return as close to and no fewer than the exact amount of Vault shares that would be burned in a withdraw + /// call in the same transaction. I.e. withdraw should return the same or fewer shares as previewWithdraw if + /// called + /// in the same transaction. + /// - MUST NOT account for withdrawal limits like those returned from maxWithdraw and should always act as though + /// the withdrawal would be accepted, regardless if the user has enough shares, etc. + /// - MUST be inclusive of withdrawal fees. Integrators should be aware of the existence of withdrawal fees. + /// - MUST NOT revert. + /// + /// NOTE: any unfavorable discrepancy between convertToShares and previewWithdraw SHOULD be considered slippage in + /// share price or some other type of condition, meaning the depositor will lose assets by depositing. + function previewWithdraw(uint256 assets) external view returns (uint256 shares); + + /// @notice Burns shares from owner and sends exactly assets of underlying tokens to receiver. + /// @dev + /// - MUST emit the Withdraw event. + /// - MAY support an additional flow in which the underlying tokens are owned by the Vault contract before the + /// withdraw execution, and are accounted for during withdraw. + /// - MUST revert if all of assets cannot be withdrawn (due to withdrawal limit being reached, slippage, the owner + /// not having enough shares, etc). + /// + /// Note that some implementations will require pre-requesting to the Vault before a withdrawal may be performed. + /// Those methods should be performed separately. + function withdraw(uint256 assets, address receiver, address owner) external returns (uint256 shares); + + /// @notice Returns the maximum amount of Vault shares that can be redeemed from the owner balance in the Vault, + /// through a redeem call. + /// @dev + /// - MUST return a limited value if owner is subject to some withdrawal limit or timelock. + /// - MUST return balanceOf(owner) if owner is not subject to any withdrawal limit or timelock. + /// - MUST NOT revert. + function maxRedeem(address owner) external view returns (uint256 maxShares); + + /// @notice Allows an on-chain or off-chain user to simulate the effects of their redeemption at the current block, + /// given current on-chain conditions. + /// @dev + /// - MUST return as close to and no more than the exact amount of assets that would be withdrawn in a redeem call + /// in the same transaction. I.e. redeem should return the same or more assets as previewRedeem if called in the + /// same transaction. + /// - MUST NOT account for redemption limits like those returned from maxRedeem and should always act as though the + /// redemption would be accepted, regardless if the user has enough shares, etc. + /// - MUST be inclusive of withdrawal fees. Integrators should be aware of the existence of withdrawal fees. + /// - MUST NOT revert. + /// + /// NOTE: any unfavorable discrepancy between convertToAssets and previewRedeem SHOULD be considered slippage in + /// share price or some other type of condition, meaning the depositor will lose assets by redeeming. + function previewRedeem(uint256 shares) external view returns (uint256 assets); + + /// @notice Burns exactly shares from owner and sends assets of underlying tokens to receiver. + /// @dev + /// - MUST emit the Withdraw event. + /// - MAY support an additional flow in which the underlying tokens are owned by the Vault contract before the + /// redeem execution, and are accounted for during redeem. + /// - MUST revert if all of shares cannot be redeemed (due to withdrawal limit being reached, slippage, the owner + /// not having enough shares, etc). + /// + /// NOTE: some implementations will require pre-requesting to the Vault before a withdrawal may be performed. + /// Those methods should be performed separately. + function redeem(uint256 shares, address receiver, address owner) external returns (uint256 assets); +} diff --git a/lib/forge-std/src/interfaces/IERC721.sol b/lib/forge-std/src/interfaces/IERC721.sol new file mode 100644 index 0000000..0a16f45 --- /dev/null +++ b/lib/forge-std/src/interfaces/IERC721.sol @@ -0,0 +1,164 @@ +// SPDX-License-Identifier: MIT +pragma solidity >=0.6.2; + +import "./IERC165.sol"; + +/// @title ERC-721 Non-Fungible Token Standard +/// @dev See https://eips.ethereum.org/EIPS/eip-721 +/// Note: the ERC-165 identifier for this interface is 0x80ac58cd. +interface IERC721 is IERC165 { + /// @dev This emits when ownership of any NFT changes by any mechanism. + /// This event emits when NFTs are created (`from` == 0) and destroyed + /// (`to` == 0). Exception: during contract creation, any number of NFTs + /// may be created and assigned without emitting Transfer. At the time of + /// any transfer, the approved address for that NFT (if any) is reset to none. + event Transfer(address indexed _from, address indexed _to, uint256 indexed _tokenId); + + /// @dev This emits when the approved address for an NFT is changed or + /// reaffirmed. The zero address indicates there is no approved address. + /// When a Transfer event emits, this also indicates that the approved + /// address for that NFT (if any) is reset to none. + event Approval(address indexed _owner, address indexed _approved, uint256 indexed _tokenId); + + /// @dev This emits when an operator is enabled or disabled for an owner. + /// The operator can manage all NFTs of the owner. + event ApprovalForAll(address indexed _owner, address indexed _operator, bool _approved); + + /// @notice Count all NFTs assigned to an owner + /// @dev NFTs assigned to the zero address are considered invalid, and this + /// function throws for queries about the zero address. + /// @param _owner An address for whom to query the balance + /// @return The number of NFTs owned by `_owner`, possibly zero + function balanceOf(address _owner) external view returns (uint256); + + /// @notice Find the owner of an NFT + /// @dev NFTs assigned to zero address are considered invalid, and queries + /// about them do throw. + /// @param _tokenId The identifier for an NFT + /// @return The address of the owner of the NFT + function ownerOf(uint256 _tokenId) external view returns (address); + + /// @notice Transfers the ownership of an NFT from one address to another address + /// @dev Throws unless `msg.sender` is the current owner, an authorized + /// operator, or the approved address for this NFT. Throws if `_from` is + /// not the current owner. Throws if `_to` is the zero address. Throws if + /// `_tokenId` is not a valid NFT. When transfer is complete, this function + /// checks if `_to` is a smart contract (code size > 0). If so, it calls + /// `onERC721Received` on `_to` and throws if the return value is not + /// `bytes4(keccak256("onERC721Received(address,address,uint256,bytes)"))`. + /// @param _from The current owner of the NFT + /// @param _to The new owner + /// @param _tokenId The NFT to transfer + /// @param data Additional data with no specified format, sent in call to `_to` + function safeTransferFrom(address _from, address _to, uint256 _tokenId, bytes calldata data) external payable; + + /// @notice Transfers the ownership of an NFT from one address to another address + /// @dev This works identically to the other function with an extra data parameter, + /// except this function just sets data to "". + /// @param _from The current owner of the NFT + /// @param _to The new owner + /// @param _tokenId The NFT to transfer + function safeTransferFrom(address _from, address _to, uint256 _tokenId) external payable; + + /// @notice Transfer ownership of an NFT -- THE CALLER IS RESPONSIBLE + /// TO CONFIRM THAT `_to` IS CAPABLE OF RECEIVING NFTS OR ELSE + /// THEY MAY BE PERMANENTLY LOST + /// @dev Throws unless `msg.sender` is the current owner, an authorized + /// operator, or the approved address for this NFT. Throws if `_from` is + /// not the current owner. Throws if `_to` is the zero address. Throws if + /// `_tokenId` is not a valid NFT. + /// @param _from The current owner of the NFT + /// @param _to The new owner + /// @param _tokenId The NFT to transfer + function transferFrom(address _from, address _to, uint256 _tokenId) external payable; + + /// @notice Change or reaffirm the approved address for an NFT + /// @dev The zero address indicates there is no approved address. + /// Throws unless `msg.sender` is the current NFT owner, or an authorized + /// operator of the current owner. + /// @param _approved The new approved NFT controller + /// @param _tokenId The NFT to approve + function approve(address _approved, uint256 _tokenId) external payable; + + /// @notice Enable or disable approval for a third party ("operator") to manage + /// all of `msg.sender`'s assets + /// @dev Emits the ApprovalForAll event. The contract MUST allow + /// multiple operators per owner. + /// @param _operator Address to add to the set of authorized operators + /// @param _approved True if the operator is approved, false to revoke approval + function setApprovalForAll(address _operator, bool _approved) external; + + /// @notice Get the approved address for a single NFT + /// @dev Throws if `_tokenId` is not a valid NFT. + /// @param _tokenId The NFT to find the approved address for + /// @return The approved address for this NFT, or the zero address if there is none + function getApproved(uint256 _tokenId) external view returns (address); + + /// @notice Query if an address is an authorized operator for another address + /// @param _owner The address that owns the NFTs + /// @param _operator The address that acts on behalf of the owner + /// @return True if `_operator` is an approved operator for `_owner`, false otherwise + function isApprovedForAll(address _owner, address _operator) external view returns (bool); +} + +/// @dev Note: the ERC-165 identifier for this interface is 0x150b7a02. +interface IERC721TokenReceiver { + /// @notice Handle the receipt of an NFT + /// @dev The ERC721 smart contract calls this function on the recipient + /// after a `transfer`. This function MAY throw to revert and reject the + /// transfer. Return of other than the magic value MUST result in the + /// transaction being reverted. + /// Note: the contract address is always the message sender. + /// @param _operator The address which called `safeTransferFrom` function + /// @param _from The address which previously owned the token + /// @param _tokenId The NFT identifier which is being transferred + /// @param _data Additional data with no specified format + /// @return `bytes4(keccak256("onERC721Received(address,address,uint256,bytes)"))` + /// unless throwing + function onERC721Received(address _operator, address _from, uint256 _tokenId, bytes calldata _data) + external + returns (bytes4); +} + +/// @title ERC-721 Non-Fungible Token Standard, optional metadata extension +/// @dev See https://eips.ethereum.org/EIPS/eip-721 +/// Note: the ERC-165 identifier for this interface is 0x5b5e139f. +interface IERC721Metadata is IERC721 { + /// @notice A descriptive name for a collection of NFTs in this contract + function name() external view returns (string memory _name); + + /// @notice An abbreviated name for NFTs in this contract + function symbol() external view returns (string memory _symbol); + + /// @notice A distinct Uniform Resource Identifier (URI) for a given asset. + /// @dev Throws if `_tokenId` is not a valid NFT. URIs are defined in RFC + /// 3986. The URI may point to a JSON file that conforms to the "ERC721 + /// Metadata JSON Schema". + function tokenURI(uint256 _tokenId) external view returns (string memory); +} + +/// @title ERC-721 Non-Fungible Token Standard, optional enumeration extension +/// @dev See https://eips.ethereum.org/EIPS/eip-721 +/// Note: the ERC-165 identifier for this interface is 0x780e9d63. +interface IERC721Enumerable is IERC721 { + /// @notice Count NFTs tracked by this contract + /// @return A count of valid NFTs tracked by this contract, where each one of + /// them has an assigned and queryable owner not equal to the zero address + function totalSupply() external view returns (uint256); + + /// @notice Enumerate valid NFTs + /// @dev Throws if `_index` >= `totalSupply()`. + /// @param _index A counter less than `totalSupply()` + /// @return The token identifier for the `_index`th NFT, + /// (sort order not specified) + function tokenByIndex(uint256 _index) external view returns (uint256); + + /// @notice Enumerate NFTs assigned to an owner + /// @dev Throws if `_index` >= `balanceOf(_owner)` or if + /// `_owner` is the zero address, representing invalid NFTs. + /// @param _owner An address where we are interested in NFTs owned by them + /// @param _index A counter less than `balanceOf(_owner)` + /// @return The token identifier for the `_index`th NFT assigned to `_owner`, + /// (sort order not specified) + function tokenOfOwnerByIndex(address _owner, uint256 _index) external view returns (uint256); +} diff --git a/lib/forge-std/test/StdAssertions.t.sol b/lib/forge-std/test/StdAssertions.t.sol new file mode 100644 index 0000000..6222654 --- /dev/null +++ b/lib/forge-std/test/StdAssertions.t.sol @@ -0,0 +1,823 @@ +// SPDX-License-Identifier: MIT +pragma solidity >=0.7.0 <0.9.0; + +import "../src/Test.sol"; + +contract StdAssertionsTest is Test { + string constant CUSTOM_ERROR = "guh!"; + + bool constant EXPECT_PASS = false; + bool constant EXPECT_FAIL = true; + + TestTest t = new TestTest(); + + /*////////////////////////////////////////////////////////////////////////// + FAIL(STRING) + //////////////////////////////////////////////////////////////////////////*/ + + function testShouldFail() external { + vm.expectEmit(false, false, false, true); + emit log_named_string("Error", CUSTOM_ERROR); + t._fail(CUSTOM_ERROR); + } + + /*////////////////////////////////////////////////////////////////////////// + ASSERT_FALSE + //////////////////////////////////////////////////////////////////////////*/ + + function testAssertFalse_Pass() external { + t._assertFalse(false, EXPECT_PASS); + } + + function testAssertFalse_Fail() external { + vm.expectEmit(false, false, false, true); + emit log("Error: Assertion Failed"); + t._assertFalse(true, EXPECT_FAIL); + } + + function testAssertFalse_Err_Pass() external { + t._assertFalse(false, CUSTOM_ERROR, EXPECT_PASS); + } + + function testAssertFalse_Err_Fail() external { + vm.expectEmit(false, false, false, true); + emit log_named_string("Error", CUSTOM_ERROR); + t._assertFalse(true, CUSTOM_ERROR, EXPECT_FAIL); + } + + /*////////////////////////////////////////////////////////////////////////// + ASSERT_EQ(BOOL) + //////////////////////////////////////////////////////////////////////////*/ + + function testAssertEq_Bool_Pass(bool a) external { + t._assertEq(a, a, EXPECT_PASS); + } + + function testAssertEq_Bool_Fail(bool a, bool b) external { + vm.assume(a != b); + + vm.expectEmit(false, false, false, true); + emit log("Error: a == b not satisfied [bool]"); + t._assertEq(a, b, EXPECT_FAIL); + } + + function testAssertEq_BoolErr_Pass(bool a) external { + t._assertEq(a, a, CUSTOM_ERROR, EXPECT_PASS); + } + + function testAssertEq_BoolErr_Fail(bool a, bool b) external { + vm.assume(a != b); + + vm.expectEmit(false, false, false, true); + emit log_named_string("Error", CUSTOM_ERROR); + t._assertEq(a, b, CUSTOM_ERROR, EXPECT_FAIL); + } + + /*////////////////////////////////////////////////////////////////////////// + ASSERT_EQ(BYTES) + //////////////////////////////////////////////////////////////////////////*/ + + function testAssertEq_Bytes_Pass(bytes calldata a) external { + t._assertEq(a, a, EXPECT_PASS); + } + + function testAssertEq_Bytes_Fail(bytes calldata a, bytes calldata b) external { + vm.assume(keccak256(a) != keccak256(b)); + + vm.expectEmit(false, false, false, true); + emit log("Error: a == b not satisfied [bytes]"); + t._assertEq(a, b, EXPECT_FAIL); + } + + function testAssertEq_BytesErr_Pass(bytes calldata a) external { + t._assertEq(a, a, CUSTOM_ERROR, EXPECT_PASS); + } + + function testAssertEq_BytesErr_Fail(bytes calldata a, bytes calldata b) external { + vm.assume(keccak256(a) != keccak256(b)); + + vm.expectEmit(false, false, false, true); + emit log_named_string("Error", CUSTOM_ERROR); + t._assertEq(a, b, CUSTOM_ERROR, EXPECT_FAIL); + } + + /*////////////////////////////////////////////////////////////////////////// + ASSERT_EQ(ARRAY) + //////////////////////////////////////////////////////////////////////////*/ + + function testAssertEq_UintArr_Pass(uint256 e0, uint256 e1, uint256 e2) public { + uint256[] memory a = new uint256[](3); + a[0] = e0; + a[1] = e1; + a[2] = e2; + uint256[] memory b = new uint256[](3); + b[0] = e0; + b[1] = e1; + b[2] = e2; + + t._assertEq(a, b, EXPECT_PASS); + } + + function testAssertEq_IntArr_Pass(int256 e0, int256 e1, int256 e2) public { + int256[] memory a = new int256[](3); + a[0] = e0; + a[1] = e1; + a[2] = e2; + int256[] memory b = new int256[](3); + b[0] = e0; + b[1] = e1; + b[2] = e2; + + t._assertEq(a, b, EXPECT_PASS); + } + + function testAssertEq_AddressArr_Pass(address e0, address e1, address e2) public { + address[] memory a = new address[](3); + a[0] = e0; + a[1] = e1; + a[2] = e2; + address[] memory b = new address[](3); + b[0] = e0; + b[1] = e1; + b[2] = e2; + + t._assertEq(a, b, EXPECT_PASS); + } + + function testAssertEq_UintArr_FailEl(uint256 e1) public { + vm.assume(e1 != 0); + uint256[] memory a = new uint256[](3); + uint256[] memory b = new uint256[](3); + b[1] = e1; + + vm.expectEmit(false, false, false, true); + emit log("Error: a == b not satisfied [uint[]]"); + t._assertEq(a, b, EXPECT_FAIL); + } + + function testAssertEq_IntArr_FailEl(int256 e1) public { + vm.assume(e1 != 0); + int256[] memory a = new int256[](3); + int256[] memory b = new int256[](3); + b[1] = e1; + + vm.expectEmit(false, false, false, true); + emit log("Error: a == b not satisfied [int[]]"); + t._assertEq(a, b, EXPECT_FAIL); + } + + function testAssertEq_AddressArr_FailEl(address e1) public { + vm.assume(e1 != address(0)); + address[] memory a = new address[](3); + address[] memory b = new address[](3); + b[1] = e1; + + vm.expectEmit(false, false, false, true); + emit log("Error: a == b not satisfied [address[]]"); + t._assertEq(a, b, EXPECT_FAIL); + } + + function testAssertEq_UintArrErr_FailEl(uint256 e1) public { + vm.assume(e1 != 0); + uint256[] memory a = new uint256[](3); + uint256[] memory b = new uint256[](3); + b[1] = e1; + + vm.expectEmit(false, false, false, true); + emit log_named_string("Error", CUSTOM_ERROR); + vm.expectEmit(false, false, false, true); + emit log("Error: a == b not satisfied [uint[]]"); + t._assertEq(a, b, CUSTOM_ERROR, EXPECT_FAIL); + } + + function testAssertEq_IntArrErr_FailEl(int256 e1) public { + vm.assume(e1 != 0); + int256[] memory a = new int256[](3); + int256[] memory b = new int256[](3); + b[1] = e1; + + vm.expectEmit(false, false, false, true); + emit log_named_string("Error", CUSTOM_ERROR); + vm.expectEmit(false, false, false, true); + emit log("Error: a == b not satisfied [int[]]"); + t._assertEq(a, b, CUSTOM_ERROR, EXPECT_FAIL); + } + + function testAssertEq_AddressArrErr_FailEl(address e1) public { + vm.assume(e1 != address(0)); + address[] memory a = new address[](3); + address[] memory b = new address[](3); + b[1] = e1; + + vm.expectEmit(false, false, false, true); + emit log_named_string("Error", CUSTOM_ERROR); + vm.expectEmit(false, false, false, true); + emit log("Error: a == b not satisfied [address[]]"); + t._assertEq(a, b, CUSTOM_ERROR, EXPECT_FAIL); + } + + function testAssertEq_UintArr_FailLen(uint256 lenA, uint256 lenB) public { + vm.assume(lenA != lenB); + vm.assume(lenA <= 10000); + vm.assume(lenB <= 10000); + uint256[] memory a = new uint256[](lenA); + uint256[] memory b = new uint256[](lenB); + + vm.expectEmit(false, false, false, true); + emit log("Error: a == b not satisfied [uint[]]"); + t._assertEq(a, b, EXPECT_FAIL); + } + + function testAssertEq_IntArr_FailLen(uint256 lenA, uint256 lenB) public { + vm.assume(lenA != lenB); + vm.assume(lenA <= 10000); + vm.assume(lenB <= 10000); + int256[] memory a = new int256[](lenA); + int256[] memory b = new int256[](lenB); + + vm.expectEmit(false, false, false, true); + emit log("Error: a == b not satisfied [int[]]"); + t._assertEq(a, b, EXPECT_FAIL); + } + + function testAssertEq_AddressArr_FailLen(uint256 lenA, uint256 lenB) public { + vm.assume(lenA != lenB); + vm.assume(lenA <= 10000); + vm.assume(lenB <= 10000); + address[] memory a = new address[](lenA); + address[] memory b = new address[](lenB); + + vm.expectEmit(false, false, false, true); + emit log("Error: a == b not satisfied [address[]]"); + t._assertEq(a, b, EXPECT_FAIL); + } + + function testAssertEq_UintArrErr_FailLen(uint256 lenA, uint256 lenB) public { + vm.assume(lenA != lenB); + vm.assume(lenA <= 10000); + vm.assume(lenB <= 10000); + uint256[] memory a = new uint256[](lenA); + uint256[] memory b = new uint256[](lenB); + + vm.expectEmit(false, false, false, true); + emit log_named_string("Error", CUSTOM_ERROR); + vm.expectEmit(false, false, false, true); + emit log("Error: a == b not satisfied [uint[]]"); + t._assertEq(a, b, CUSTOM_ERROR, EXPECT_FAIL); + } + + function testAssertEq_IntArrErr_FailLen(uint256 lenA, uint256 lenB) public { + vm.assume(lenA != lenB); + vm.assume(lenA <= 10000); + vm.assume(lenB <= 10000); + int256[] memory a = new int256[](lenA); + int256[] memory b = new int256[](lenB); + + vm.expectEmit(false, false, false, true); + emit log_named_string("Error", CUSTOM_ERROR); + vm.expectEmit(false, false, false, true); + emit log("Error: a == b not satisfied [int[]]"); + t._assertEq(a, b, CUSTOM_ERROR, EXPECT_FAIL); + } + + function testAssertEq_AddressArrErr_FailLen(uint256 lenA, uint256 lenB) public { + vm.assume(lenA != lenB); + vm.assume(lenA <= 10000); + vm.assume(lenB <= 10000); + address[] memory a = new address[](lenA); + address[] memory b = new address[](lenB); + + vm.expectEmit(false, false, false, true); + emit log_named_string("Error", CUSTOM_ERROR); + vm.expectEmit(false, false, false, true); + emit log("Error: a == b not satisfied [address[]]"); + t._assertEq(a, b, CUSTOM_ERROR, EXPECT_FAIL); + } + + /*////////////////////////////////////////////////////////////////////////// + ASSERT_EQ(UINT) + //////////////////////////////////////////////////////////////////////////*/ + + function testAssertEqUint() public { + assertEqUint(uint8(1), uint128(1)); + assertEqUint(uint64(2), uint64(2)); + } + + function testFailAssertEqUint() public { + assertEqUint(uint64(1), uint96(2)); + assertEqUint(uint160(3), uint160(4)); + } + + /*////////////////////////////////////////////////////////////////////////// + APPROX_EQ_ABS(UINT) + //////////////////////////////////////////////////////////////////////////*/ + + function testAssertApproxEqAbs_Uint_Pass(uint256 a, uint256 b, uint256 maxDelta) external { + vm.assume(stdMath.delta(a, b) <= maxDelta); + + t._assertApproxEqAbs(a, b, maxDelta, EXPECT_PASS); + } + + function testAssertApproxEqAbs_Uint_Fail(uint256 a, uint256 b, uint256 maxDelta) external { + vm.assume(stdMath.delta(a, b) > maxDelta); + + vm.expectEmit(false, false, false, true); + emit log("Error: a ~= b not satisfied [uint]"); + t._assertApproxEqAbs(a, b, maxDelta, EXPECT_FAIL); + } + + function testAssertApproxEqAbs_UintErr_Pass(uint256 a, uint256 b, uint256 maxDelta) external { + vm.assume(stdMath.delta(a, b) <= maxDelta); + + t._assertApproxEqAbs(a, b, maxDelta, CUSTOM_ERROR, EXPECT_PASS); + } + + function testAssertApproxEqAbs_UintErr_Fail(uint256 a, uint256 b, uint256 maxDelta) external { + vm.assume(stdMath.delta(a, b) > maxDelta); + + vm.expectEmit(false, false, false, true); + emit log_named_string("Error", CUSTOM_ERROR); + t._assertApproxEqAbs(a, b, maxDelta, CUSTOM_ERROR, EXPECT_FAIL); + } + + /*////////////////////////////////////////////////////////////////////////// + APPROX_EQ_ABS_DECIMAL(UINT) + //////////////////////////////////////////////////////////////////////////*/ + + function testAssertApproxEqAbsDecimal_Uint_Pass(uint256 a, uint256 b, uint256 maxDelta, uint256 decimals) + external + { + vm.assume(stdMath.delta(a, b) <= maxDelta); + + t._assertApproxEqAbsDecimal(a, b, maxDelta, decimals, EXPECT_PASS); + } + + function testAssertApproxEqAbsDecimal_Uint_Fail(uint256 a, uint256 b, uint256 maxDelta, uint256 decimals) + external + { + vm.assume(stdMath.delta(a, b) > maxDelta); + + vm.expectEmit(false, false, false, true); + emit log("Error: a ~= b not satisfied [uint]"); + t._assertApproxEqAbsDecimal(a, b, maxDelta, decimals, EXPECT_FAIL); + } + + function testAssertApproxEqAbsDecimal_UintErr_Pass(uint256 a, uint256 b, uint256 maxDelta, uint256 decimals) + external + { + vm.assume(stdMath.delta(a, b) <= maxDelta); + + t._assertApproxEqAbsDecimal(a, b, maxDelta, decimals, CUSTOM_ERROR, EXPECT_PASS); + } + + function testAssertApproxEqAbsDecimal_UintErr_Fail(uint256 a, uint256 b, uint256 maxDelta, uint256 decimals) + external + { + vm.assume(stdMath.delta(a, b) > maxDelta); + + vm.expectEmit(false, false, false, true); + emit log_named_string("Error", CUSTOM_ERROR); + t._assertApproxEqAbsDecimal(a, b, maxDelta, decimals, CUSTOM_ERROR, EXPECT_FAIL); + } + + /*////////////////////////////////////////////////////////////////////////// + APPROX_EQ_ABS(INT) + //////////////////////////////////////////////////////////////////////////*/ + + function testAssertApproxEqAbs_Int_Pass(int256 a, int256 b, uint256 maxDelta) external { + vm.assume(stdMath.delta(a, b) <= maxDelta); + + t._assertApproxEqAbs(a, b, maxDelta, EXPECT_PASS); + } + + function testAssertApproxEqAbs_Int_Fail(int256 a, int256 b, uint256 maxDelta) external { + vm.assume(stdMath.delta(a, b) > maxDelta); + + vm.expectEmit(false, false, false, true); + emit log("Error: a ~= b not satisfied [int]"); + t._assertApproxEqAbs(a, b, maxDelta, EXPECT_FAIL); + } + + function testAssertApproxEqAbs_IntErr_Pass(int256 a, int256 b, uint256 maxDelta) external { + vm.assume(stdMath.delta(a, b) <= maxDelta); + + t._assertApproxEqAbs(a, b, maxDelta, CUSTOM_ERROR, EXPECT_PASS); + } + + function testAssertApproxEqAbs_IntErr_Fail(int256 a, int256 b, uint256 maxDelta) external { + vm.assume(stdMath.delta(a, b) > maxDelta); + + vm.expectEmit(false, false, false, true); + emit log_named_string("Error", CUSTOM_ERROR); + t._assertApproxEqAbs(a, b, maxDelta, CUSTOM_ERROR, EXPECT_FAIL); + } + + /*////////////////////////////////////////////////////////////////////////// + APPROX_EQ_ABS_DECIMAL(INT) + //////////////////////////////////////////////////////////////////////////*/ + + function testAssertApproxEqAbsDecimal_Int_Pass(int256 a, int256 b, uint256 maxDelta, uint256 decimals) external { + vm.assume(stdMath.delta(a, b) <= maxDelta); + + t._assertApproxEqAbsDecimal(a, b, maxDelta, decimals, EXPECT_PASS); + } + + function testAssertApproxEqAbsDecimal_Int_Fail(int256 a, int256 b, uint256 maxDelta, uint256 decimals) external { + vm.assume(stdMath.delta(a, b) > maxDelta); + + vm.expectEmit(false, false, false, true); + emit log("Error: a ~= b not satisfied [int]"); + t._assertApproxEqAbsDecimal(a, b, maxDelta, decimals, EXPECT_FAIL); + } + + function testAssertApproxEqAbsDecimal_IntErr_Pass(int256 a, int256 b, uint256 maxDelta, uint256 decimals) + external + { + vm.assume(stdMath.delta(a, b) <= maxDelta); + + t._assertApproxEqAbsDecimal(a, b, maxDelta, decimals, CUSTOM_ERROR, EXPECT_PASS); + } + + function testAssertApproxEqAbsDecimal_IntErr_Fail(int256 a, int256 b, uint256 maxDelta, uint256 decimals) + external + { + vm.assume(stdMath.delta(a, b) > maxDelta); + + vm.expectEmit(false, false, false, true); + emit log_named_string("Error", CUSTOM_ERROR); + t._assertApproxEqAbsDecimal(a, b, maxDelta, decimals, CUSTOM_ERROR, EXPECT_FAIL); + } + + /*////////////////////////////////////////////////////////////////////////// + APPROX_EQ_REL(UINT) + //////////////////////////////////////////////////////////////////////////*/ + + function testAssertApproxEqRel_Uint_Pass(uint256 a, uint256 b, uint256 maxPercentDelta) external { + vm.assume(a < type(uint128).max && b < type(uint128).max && b != 0); + vm.assume(stdMath.percentDelta(a, b) <= maxPercentDelta); + + t._assertApproxEqRel(a, b, maxPercentDelta, EXPECT_PASS); + } + + function testAssertApproxEqRel_Uint_Fail(uint256 a, uint256 b, uint256 maxPercentDelta) external { + vm.assume(a < type(uint128).max && b < type(uint128).max && b != 0); + vm.assume(stdMath.percentDelta(a, b) > maxPercentDelta); + + vm.expectEmit(false, false, false, true); + emit log("Error: a ~= b not satisfied [uint]"); + t._assertApproxEqRel(a, b, maxPercentDelta, EXPECT_FAIL); + } + + function testAssertApproxEqRel_UintErr_Pass(uint256 a, uint256 b, uint256 maxPercentDelta) external { + vm.assume(a < type(uint128).max && b < type(uint128).max && b != 0); + vm.assume(stdMath.percentDelta(a, b) <= maxPercentDelta); + + t._assertApproxEqRel(a, b, maxPercentDelta, CUSTOM_ERROR, EXPECT_PASS); + } + + function testAssertApproxEqRel_UintErr_Fail(uint256 a, uint256 b, uint256 maxPercentDelta) external { + vm.assume(a < type(uint128).max && b < type(uint128).max && b != 0); + vm.assume(stdMath.percentDelta(a, b) > maxPercentDelta); + + vm.expectEmit(false, false, false, true); + emit log_named_string("Error", CUSTOM_ERROR); + t._assertApproxEqRel(a, b, maxPercentDelta, CUSTOM_ERROR, EXPECT_FAIL); + } + + /*////////////////////////////////////////////////////////////////////////// + APPROX_EQ_REL_DECIMAL(UINT) + //////////////////////////////////////////////////////////////////////////*/ + + function testAssertApproxEqRelDecimal_Uint_Pass(uint256 a, uint256 b, uint256 maxPercentDelta, uint256 decimals) + external + { + vm.assume(a < type(uint128).max && b < type(uint128).max && b != 0); + vm.assume(stdMath.percentDelta(a, b) <= maxPercentDelta); + + t._assertApproxEqRelDecimal(a, b, maxPercentDelta, decimals, EXPECT_PASS); + } + + function testAssertApproxEqRelDecimal_Uint_Fail(uint256 a, uint256 b, uint256 maxPercentDelta, uint256 decimals) + external + { + vm.assume(a < type(uint128).max && b < type(uint128).max && b != 0); + vm.assume(stdMath.percentDelta(a, b) > maxPercentDelta); + + vm.expectEmit(false, false, false, true); + emit log("Error: a ~= b not satisfied [uint]"); + t._assertApproxEqRelDecimal(a, b, maxPercentDelta, decimals, EXPECT_FAIL); + } + + function testAssertApproxEqRelDecimal_UintErr_Pass(uint256 a, uint256 b, uint256 maxPercentDelta, uint256 decimals) + external + { + vm.assume(a < type(uint128).max && b < type(uint128).max && b != 0); + vm.assume(stdMath.percentDelta(a, b) <= maxPercentDelta); + + t._assertApproxEqRelDecimal(a, b, maxPercentDelta, decimals, CUSTOM_ERROR, EXPECT_PASS); + } + + function testAssertApproxEqRelDecimal_UintErr_Fail(uint256 a, uint256 b, uint256 maxPercentDelta, uint256 decimals) + external + { + vm.assume(a < type(uint128).max && b < type(uint128).max && b != 0); + vm.assume(stdMath.percentDelta(a, b) > maxPercentDelta); + + vm.expectEmit(false, false, false, true); + emit log_named_string("Error", CUSTOM_ERROR); + t._assertApproxEqRelDecimal(a, b, maxPercentDelta, decimals, CUSTOM_ERROR, EXPECT_FAIL); + } + + /*////////////////////////////////////////////////////////////////////////// + APPROX_EQ_REL(INT) + //////////////////////////////////////////////////////////////////////////*/ + + function testAssertApproxEqRel_Int_Pass(int128 a, int128 b, uint128 maxPercentDelta) external { + vm.assume(b != 0); + vm.assume(stdMath.percentDelta(a, b) <= maxPercentDelta); + + t._assertApproxEqRel(a, b, maxPercentDelta, EXPECT_PASS); + } + + function testAssertApproxEqRel_Int_Fail(int128 a, int128 b, uint128 maxPercentDelta) external { + vm.assume(b != 0); + vm.assume(stdMath.percentDelta(a, b) > maxPercentDelta); + + vm.expectEmit(false, false, false, true); + emit log("Error: a ~= b not satisfied [int]"); + t._assertApproxEqRel(a, b, maxPercentDelta, EXPECT_FAIL); + } + + function testAssertApproxEqRel_IntErr_Pass(int128 a, int128 b, uint128 maxPercentDelta) external { + vm.assume(b != 0); + vm.assume(stdMath.percentDelta(a, b) <= maxPercentDelta); + + t._assertApproxEqRel(a, b, maxPercentDelta, CUSTOM_ERROR, EXPECT_PASS); + } + + function testAssertApproxEqRel_IntErr_Fail(int128 a, int128 b, uint128 maxPercentDelta) external { + vm.assume(b != 0); + vm.assume(stdMath.percentDelta(a, b) > maxPercentDelta); + + vm.expectEmit(false, false, false, true); + emit log_named_string("Error", CUSTOM_ERROR); + t._assertApproxEqRel(a, b, maxPercentDelta, CUSTOM_ERROR, EXPECT_FAIL); + } + + /*////////////////////////////////////////////////////////////////////////// + APPROX_EQ_REL_DECIMAL(INT) + //////////////////////////////////////////////////////////////////////////*/ + + function testAssertApproxEqRelDecimal_Int_Pass(int128 a, int128 b, uint128 maxPercentDelta, uint128 decimals) + external + { + vm.assume(b != 0); + vm.assume(stdMath.percentDelta(a, b) <= maxPercentDelta); + + t._assertApproxEqRelDecimal(a, b, maxPercentDelta, decimals, EXPECT_PASS); + } + + function testAssertApproxEqRelDecimal_Int_Fail(int128 a, int128 b, uint128 maxPercentDelta, uint128 decimals) + external + { + vm.assume(b != 0); + vm.assume(stdMath.percentDelta(a, b) > maxPercentDelta); + + vm.expectEmit(false, false, false, true); + emit log("Error: a ~= b not satisfied [int]"); + t._assertApproxEqRelDecimal(a, b, maxPercentDelta, decimals, EXPECT_FAIL); + } + + function testAssertApproxEqRelDecimal_IntErr_Pass(int128 a, int128 b, uint128 maxPercentDelta, uint128 decimals) + external + { + vm.assume(b != 0); + vm.assume(stdMath.percentDelta(a, b) <= maxPercentDelta); + + t._assertApproxEqRelDecimal(a, b, maxPercentDelta, decimals, CUSTOM_ERROR, EXPECT_PASS); + } + + function testAssertApproxEqRelDecimal_IntErr_Fail(int128 a, int128 b, uint128 maxPercentDelta, uint128 decimals) + external + { + vm.assume(b != 0); + vm.assume(stdMath.percentDelta(a, b) > maxPercentDelta); + + vm.expectEmit(false, false, false, true); + emit log_named_string("Error", CUSTOM_ERROR); + t._assertApproxEqRelDecimal(a, b, maxPercentDelta, decimals, CUSTOM_ERROR, EXPECT_FAIL); + } +} + +contract TestTest is Test { + modifier expectFailure(bool expectFail) { + bool preState = vm.load(HEVM_ADDRESS, bytes32("failed")) != bytes32(0x00); + _; + bool postState = vm.load(HEVM_ADDRESS, bytes32("failed")) != bytes32(0x00); + + if (preState == true) { + return; + } + + if (expectFail) { + require(postState == true, "expected failure not triggered"); + + // unwind the expected failure + vm.store(HEVM_ADDRESS, bytes32("failed"), bytes32(uint256(0x00))); + } else { + require(postState == false, "unexpected failure was triggered"); + } + } + + function _fail(string memory err) external expectFailure(true) { + fail(err); + } + + function _assertFalse(bool data, bool expectFail) external expectFailure(expectFail) { + assertFalse(data); + } + + function _assertFalse(bool data, string memory err, bool expectFail) external expectFailure(expectFail) { + assertFalse(data, err); + } + + function _assertEq(bool a, bool b, bool expectFail) external expectFailure(expectFail) { + assertEq(a, b); + } + + function _assertEq(bool a, bool b, string memory err, bool expectFail) external expectFailure(expectFail) { + assertEq(a, b, err); + } + + function _assertEq(bytes memory a, bytes memory b, bool expectFail) external expectFailure(expectFail) { + assertEq(a, b); + } + + function _assertEq(bytes memory a, bytes memory b, string memory err, bool expectFail) + external + expectFailure(expectFail) + { + assertEq(a, b, err); + } + + function _assertEq(uint256[] memory a, uint256[] memory b, bool expectFail) external expectFailure(expectFail) { + assertEq(a, b); + } + + function _assertEq(int256[] memory a, int256[] memory b, bool expectFail) external expectFailure(expectFail) { + assertEq(a, b); + } + + function _assertEq(address[] memory a, address[] memory b, bool expectFail) external expectFailure(expectFail) { + assertEq(a, b); + } + + function _assertEq(uint256[] memory a, uint256[] memory b, string memory err, bool expectFail) + external + expectFailure(expectFail) + { + assertEq(a, b, err); + } + + function _assertEq(int256[] memory a, int256[] memory b, string memory err, bool expectFail) + external + expectFailure(expectFail) + { + assertEq(a, b, err); + } + + function _assertEq(address[] memory a, address[] memory b, string memory err, bool expectFail) + external + expectFailure(expectFail) + { + assertEq(a, b, err); + } + + function _assertApproxEqAbs(uint256 a, uint256 b, uint256 maxDelta, bool expectFail) + external + expectFailure(expectFail) + { + assertApproxEqAbs(a, b, maxDelta); + } + + function _assertApproxEqAbs(uint256 a, uint256 b, uint256 maxDelta, string memory err, bool expectFail) + external + expectFailure(expectFail) + { + assertApproxEqAbs(a, b, maxDelta, err); + } + + function _assertApproxEqAbsDecimal(uint256 a, uint256 b, uint256 maxDelta, uint256 decimals, bool expectFail) + external + expectFailure(expectFail) + { + assertApproxEqAbsDecimal(a, b, maxDelta, decimals); + } + + function _assertApproxEqAbsDecimal( + uint256 a, + uint256 b, + uint256 maxDelta, + uint256 decimals, + string memory err, + bool expectFail + ) external expectFailure(expectFail) { + assertApproxEqAbsDecimal(a, b, maxDelta, decimals, err); + } + + function _assertApproxEqAbs(int256 a, int256 b, uint256 maxDelta, bool expectFail) + external + expectFailure(expectFail) + { + assertApproxEqAbs(a, b, maxDelta); + } + + function _assertApproxEqAbs(int256 a, int256 b, uint256 maxDelta, string memory err, bool expectFail) + external + expectFailure(expectFail) + { + assertApproxEqAbs(a, b, maxDelta, err); + } + + function _assertApproxEqAbsDecimal(int256 a, int256 b, uint256 maxDelta, uint256 decimals, bool expectFail) + external + expectFailure(expectFail) + { + assertApproxEqAbsDecimal(a, b, maxDelta, decimals); + } + + function _assertApproxEqAbsDecimal( + int256 a, + int256 b, + uint256 maxDelta, + uint256 decimals, + string memory err, + bool expectFail + ) external expectFailure(expectFail) { + assertApproxEqAbsDecimal(a, b, maxDelta, decimals, err); + } + + function _assertApproxEqRel(uint256 a, uint256 b, uint256 maxPercentDelta, bool expectFail) + external + expectFailure(expectFail) + { + assertApproxEqRel(a, b, maxPercentDelta); + } + + function _assertApproxEqRel(uint256 a, uint256 b, uint256 maxPercentDelta, string memory err, bool expectFail) + external + expectFailure(expectFail) + { + assertApproxEqRel(a, b, maxPercentDelta, err); + } + + function _assertApproxEqRelDecimal(uint256 a, uint256 b, uint256 maxPercentDelta, uint256 decimals, bool expectFail) + external + expectFailure(expectFail) + { + assertApproxEqRelDecimal(a, b, maxPercentDelta, decimals); + } + + function _assertApproxEqRelDecimal( + uint256 a, + uint256 b, + uint256 maxPercentDelta, + uint256 decimals, + string memory err, + bool expectFail + ) external expectFailure(expectFail) { + assertApproxEqRelDecimal(a, b, maxPercentDelta, decimals, err); + } + + function _assertApproxEqRel(int256 a, int256 b, uint256 maxPercentDelta, bool expectFail) + external + expectFailure(expectFail) + { + assertApproxEqRel(a, b, maxPercentDelta); + } + + function _assertApproxEqRel(int256 a, int256 b, uint256 maxPercentDelta, string memory err, bool expectFail) + external + expectFailure(expectFail) + { + assertApproxEqRel(a, b, maxPercentDelta, err); + } + + function _assertApproxEqRelDecimal(int256 a, int256 b, uint256 maxPercentDelta, uint256 decimals, bool expectFail) + external + expectFailure(expectFail) + { + assertApproxEqRelDecimal(a, b, maxPercentDelta, decimals); + } + + function _assertApproxEqRelDecimal( + int256 a, + int256 b, + uint256 maxPercentDelta, + uint256 decimals, + string memory err, + bool expectFail + ) external expectFailure(expectFail) { + assertApproxEqRelDecimal(a, b, maxPercentDelta, decimals, err); + } +} diff --git a/lib/forge-std/test/StdChains.t.sol b/lib/forge-std/test/StdChains.t.sol new file mode 100644 index 0000000..cf0c990 --- /dev/null +++ b/lib/forge-std/test/StdChains.t.sol @@ -0,0 +1,147 @@ +// SPDX-License-Identifier: MIT +pragma solidity >=0.7.0 <0.9.0; + +import "../src/Test.sol"; + +contract StdChainsTest is Test { + function testChainRpcInitialization() public { + // RPCs specified in `foundry.toml` should be updated. + assertEq(getChain(1).rpcUrl, "https://mainnet.infura.io/v3/7a8769b798b642f6933f2ed52042bd70"); + assertEq(getChain("optimism_goerli").rpcUrl, "https://goerli.optimism.io/"); + assertEq(getChain("arbitrum_one_goerli").rpcUrl, "https://goerli-rollup.arbitrum.io/rpc/"); + + // Environment variables should be the next fallback + assertEq(getChain("arbitrum_nova").rpcUrl, "https://nova.arbitrum.io/rpc"); + vm.setEnv("ARBITRUM_NOVA_RPC_URL", "myoverride"); + assertEq(getChain("arbitrum_nova").rpcUrl, "myoverride"); + vm.setEnv("ARBITRUM_NOVA_RPC_URL", "https://nova.arbitrum.io/rpc"); + + // Cannot override RPCs defined in `foundry.toml` + vm.setEnv("MAINNET_RPC_URL", "myoverride2"); + assertEq(getChain("mainnet").rpcUrl, "https://mainnet.infura.io/v3/7a8769b798b642f6933f2ed52042bd70"); + + // Other RPCs should remain unchanged. + assertEq(getChain(31337).rpcUrl, "http://127.0.0.1:8545"); + assertEq(getChain("sepolia").rpcUrl, "https://sepolia.infura.io/v3/6770454bc6ea42c58aac12978531b93f"); + } + + function testRpc(string memory rpcAlias) internal { + string memory rpcUrl = getChain(rpcAlias).rpcUrl; + vm.createSelectFork(rpcUrl); + } + + // Ensure we can connect to the default RPC URL for each chain. + function testRpcs() public { + testRpc("mainnet"); + testRpc("goerli"); + testRpc("sepolia"); + testRpc("optimism"); + testRpc("optimism_goerli"); + testRpc("arbitrum_one"); + testRpc("arbitrum_one_goerli"); + testRpc("arbitrum_nova"); + testRpc("polygon"); + testRpc("polygon_mumbai"); + testRpc("avalanche"); + testRpc("avalanche_fuji"); + testRpc("bnb_smart_chain"); + testRpc("bnb_smart_chain_testnet"); + testRpc("gnosis_chain"); + } + + function testChainNoDefault() public { + vm.expectRevert("StdChains getChain(string): Chain with alias \"does_not_exist\" not found."); + getChain("does_not_exist"); + } + + function testSetChainFirstFails() public { + vm.expectRevert("StdChains setChain(string,ChainData): Chain ID 31337 already used by \"anvil\"."); + setChain("anvil2", ChainData("Anvil", 31337, "URL")); + } + + function testChainBubbleUp() public { + setChain("needs_undefined_env_var", ChainData("", 123456789, "")); + vm.expectRevert( + "Failed to resolve env var `UNDEFINED_RPC_URL_PLACEHOLDER` in `${UNDEFINED_RPC_URL_PLACEHOLDER}`: environment variable not found" + ); + getChain("needs_undefined_env_var"); + } + + function testCannotSetChain_ChainIdExists() public { + setChain("custom_chain", ChainData("Custom Chain", 123456789, "https://custom.chain/")); + + vm.expectRevert('StdChains setChain(string,ChainData): Chain ID 123456789 already used by "custom_chain".'); + + setChain("another_custom_chain", ChainData("", 123456789, "")); + } + + function testSetChain() public { + setChain("custom_chain", ChainData("Custom Chain", 123456789, "https://custom.chain/")); + Chain memory customChain = getChain("custom_chain"); + assertEq(customChain.name, "Custom Chain"); + assertEq(customChain.chainId, 123456789); + assertEq(customChain.chainAlias, "custom_chain"); + assertEq(customChain.rpcUrl, "https://custom.chain/"); + Chain memory chainById = getChain(123456789); + assertEq(chainById.name, customChain.name); + assertEq(chainById.chainId, customChain.chainId); + assertEq(chainById.chainAlias, customChain.chainAlias); + assertEq(chainById.rpcUrl, customChain.rpcUrl); + customChain.name = "Another Custom Chain"; + customChain.chainId = 987654321; + setChain("another_custom_chain", customChain); + Chain memory anotherCustomChain = getChain("another_custom_chain"); + assertEq(anotherCustomChain.name, "Another Custom Chain"); + assertEq(anotherCustomChain.chainId, 987654321); + assertEq(anotherCustomChain.chainAlias, "another_custom_chain"); + assertEq(anotherCustomChain.rpcUrl, "https://custom.chain/"); + // Verify the first chain data was not overwritten + chainById = getChain(123456789); + assertEq(chainById.name, "Custom Chain"); + assertEq(chainById.chainId, 123456789); + } + + function testSetNoEmptyAlias() public { + vm.expectRevert("StdChains setChain(string,ChainData): Chain alias cannot be the empty string."); + setChain("", ChainData("", 123456789, "")); + } + + function testSetNoChainId0() public { + vm.expectRevert("StdChains setChain(string,ChainData): Chain ID cannot be 0."); + setChain("alias", ChainData("", 0, "")); + } + + function testGetNoChainId0() public { + vm.expectRevert("StdChains getChain(uint256): Chain ID cannot be 0."); + getChain(0); + } + + function testGetNoEmptyAlias() public { + vm.expectRevert("StdChains getChain(string): Chain alias cannot be the empty string."); + getChain(""); + } + + function testChainIdNotFound() public { + vm.expectRevert("StdChains getChain(string): Chain with alias \"no_such_alias\" not found."); + getChain("no_such_alias"); + } + + function testChainAliasNotFound() public { + vm.expectRevert("StdChains getChain(uint256): Chain with ID 321 not found."); + getChain(321); + } + + function testSetChain_ExistingOne() public { + setChain("custom_chain", ChainData("Custom Chain", 123456789, "https://custom.chain/")); + assertEq(getChain(123456789).chainId, 123456789); + + setChain("custom_chain", ChainData("Modified Chain", 999999999, "https://modified.chain/")); + vm.expectRevert("StdChains getChain(uint256): Chain with ID 123456789 not found."); + getChain(123456789); + + Chain memory modifiedChain = getChain(999999999); + assertEq(modifiedChain.name, "Modified Chain"); + assertEq(modifiedChain.chainId, 999999999); + assertEq(modifiedChain.rpcUrl, "https://modified.chain/"); + } +} diff --git a/lib/forge-std/test/StdCheats.t.sol b/lib/forge-std/test/StdCheats.t.sol new file mode 100644 index 0000000..82bfb23 --- /dev/null +++ b/lib/forge-std/test/StdCheats.t.sol @@ -0,0 +1,329 @@ +// SPDX-License-Identifier: MIT +pragma solidity >=0.7.0 <0.9.0; + +import "../src/StdCheats.sol"; +import "../src/Test.sol"; +import "../src/StdJson.sol"; + +contract StdCheatsTest is Test { + Bar test; + + using stdJson for string; + + function setUp() public { + test = new Bar(); + } + + function testSkip() public { + vm.warp(100); + skip(25); + assertEq(block.timestamp, 125); + } + + function testRewind() public { + vm.warp(100); + rewind(25); + assertEq(block.timestamp, 75); + } + + function testHoax() public { + hoax(address(1337)); + test.bar{value: 100}(address(1337)); + } + + function testHoaxOrigin() public { + hoax(address(1337), address(1337)); + test.origin{value: 100}(address(1337)); + } + + function testHoaxDifferentAddresses() public { + hoax(address(1337), address(7331)); + test.origin{value: 100}(address(1337), address(7331)); + } + + function testStartHoax() public { + startHoax(address(1337)); + test.bar{value: 100}(address(1337)); + test.bar{value: 100}(address(1337)); + vm.stopPrank(); + test.bar(address(this)); + } + + function testStartHoaxOrigin() public { + startHoax(address(1337), address(1337)); + test.origin{value: 100}(address(1337)); + test.origin{value: 100}(address(1337)); + vm.stopPrank(); + test.bar(address(this)); + } + + function testChangePrank() public { + vm.startPrank(address(1337)); + test.bar(address(1337)); + changePrank(address(0xdead)); + test.bar(address(0xdead)); + changePrank(address(1337)); + test.bar(address(1337)); + vm.stopPrank(); + } + + function testMakeAddrEquivalence() public { + (address addr,) = makeAddrAndKey("1337"); + assertEq(makeAddr("1337"), addr); + } + + function testMakeAddrSigning() public { + (address addr, uint256 key) = makeAddrAndKey("1337"); + bytes32 hash = keccak256("some_message"); + + (uint8 v, bytes32 r, bytes32 s) = vm.sign(key, hash); + assertEq(ecrecover(hash, v, r, s), addr); + } + + function testDeal() public { + deal(address(this), 1 ether); + assertEq(address(this).balance, 1 ether); + } + + function testDealToken() public { + Bar barToken = new Bar(); + address bar = address(barToken); + deal(bar, address(this), 10000e18); + assertEq(barToken.balanceOf(address(this)), 10000e18); + } + + function testDealTokenAdjustTS() public { + Bar barToken = new Bar(); + address bar = address(barToken); + deal(bar, address(this), 10000e18, true); + assertEq(barToken.balanceOf(address(this)), 10000e18); + assertEq(barToken.totalSupply(), 20000e18); + deal(bar, address(this), 0, true); + assertEq(barToken.balanceOf(address(this)), 0); + assertEq(barToken.totalSupply(), 10000e18); + } + + function testDeployCode() public { + address deployed = deployCode("StdCheats.t.sol:Bar", bytes("")); + assertEq(string(getCode(deployed)), string(getCode(address(test)))); + } + + function testDeployCodeNoArgs() public { + address deployed = deployCode("StdCheats.t.sol:Bar"); + assertEq(string(getCode(deployed)), string(getCode(address(test)))); + } + + function testDeployCodeVal() public { + address deployed = deployCode("StdCheats.t.sol:Bar", bytes(""), 1 ether); + assertEq(string(getCode(deployed)), string(getCode(address(test)))); + assertEq(deployed.balance, 1 ether); + } + + function testDeployCodeValNoArgs() public { + address deployed = deployCode("StdCheats.t.sol:Bar", 1 ether); + assertEq(string(getCode(deployed)), string(getCode(address(test)))); + assertEq(deployed.balance, 1 ether); + } + + // We need this so we can call "this.deployCode" rather than "deployCode" directly + function deployCodeHelper(string memory what) external { + deployCode(what); + } + + function testDeployCodeFail() public { + vm.expectRevert(bytes("StdCheats deployCode(string): Deployment failed.")); + this.deployCodeHelper("StdCheats.t.sol:RevertingContract"); + } + + function getCode(address who) internal view returns (bytes memory o_code) { + /// @solidity memory-safe-assembly + assembly { + // retrieve the size of the code, this needs assembly + let size := extcodesize(who) + // allocate output byte array - this could also be done without assembly + // by using o_code = new bytes(size) + o_code := mload(0x40) + // new "memory end" including padding + mstore(0x40, add(o_code, and(add(add(size, 0x20), 0x1f), not(0x1f)))) + // store length in memory + mstore(o_code, size) + // actually retrieve the code, this needs assembly + extcodecopy(who, add(o_code, 0x20), 0, size) + } + } + + function testDeriveRememberKey() public { + string memory mnemonic = "test test test test test test test test test test test junk"; + + (address deployer, uint256 privateKey) = deriveRememberKey(mnemonic, 0); + assertEq(deployer, 0xf39Fd6e51aad88F6F4ce6aB8827279cffFb92266); + assertEq(privateKey, 0xac0974bec39a17e36ba4a6b4d238ff944bacb478cbed5efcae784d7bf4f2ff80); + } + + function testBytesToUint() public { + assertEq(3, bytesToUint_test(hex"03")); + assertEq(2, bytesToUint_test(hex"02")); + assertEq(255, bytesToUint_test(hex"ff")); + assertEq(29625, bytesToUint_test(hex"73b9")); + } + + function testParseJsonTxDetail() public { + string memory root = vm.projectRoot(); + string memory path = string.concat(root, "/test/fixtures/broadcast.log.json"); + string memory json = vm.readFile(path); + bytes memory transactionDetails = json.parseRaw(".transactions[0].tx"); + RawTx1559Detail memory rawTxDetail = abi.decode(transactionDetails, (RawTx1559Detail)); + Tx1559Detail memory txDetail = rawToConvertedEIP1559Detail(rawTxDetail); + assertEq(txDetail.from, 0xf39Fd6e51aad88F6F4ce6aB8827279cffFb92266); + assertEq(txDetail.to, 0xe7f1725E7734CE288F8367e1Bb143E90bb3F0512); + assertEq( + txDetail.data, + hex"23e99187000000000000000000000000000000000000000000000000000000000000000100000000000000000000000000000000000000000000000000000000000013370000000000000000000000000000000000000000000000000000000000000060000000000000000000000000000000000000000000000000000000000000000200000000000000000000000000000000000000000000000000000000000000030000000000000000000000000000000000000000000000000000000000000004" + ); + assertEq(txDetail.nonce, 3); + assertEq(txDetail.txType, 2); + assertEq(txDetail.gas, 29625); + assertEq(txDetail.value, 0); + } + + function testReadEIP1559Transaction() public view { + string memory root = vm.projectRoot(); + string memory path = string.concat(root, "/test/fixtures/broadcast.log.json"); + uint256 index = 0; + Tx1559 memory transaction = readTx1559(path, index); + transaction; + } + + function testReadEIP1559Transactions() public view { + string memory root = vm.projectRoot(); + string memory path = string.concat(root, "/test/fixtures/broadcast.log.json"); + Tx1559[] memory transactions = readTx1559s(path); + transactions; + } + + function testReadReceipt() public { + string memory root = vm.projectRoot(); + string memory path = string.concat(root, "/test/fixtures/broadcast.log.json"); + uint256 index = 5; + Receipt memory receipt = readReceipt(path, index); + assertEq( + receipt.logsBloom, + hex"00000000000800000000000000000010000000000000000000000000000180000000000000000000000000000000000000000000000008000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000100" + ); + } + + function testReadReceipts() public view { + string memory root = vm.projectRoot(); + string memory path = string.concat(root, "/test/fixtures/broadcast.log.json"); + Receipt[] memory receipts = readReceipts(path); + receipts; + } + + function testGasMeteringModifier() public { + uint256 gas_start_normal = gasleft(); + addInLoop(); + uint256 gas_used_normal = gas_start_normal - gasleft(); + + uint256 gas_start_single = gasleft(); + addInLoopNoGas(); + uint256 gas_used_single = gas_start_single - gasleft(); + + uint256 gas_start_double = gasleft(); + addInLoopNoGasNoGas(); + uint256 gas_used_double = gas_start_double - gasleft(); + + emit log_named_uint("Normal gas", gas_used_normal); + emit log_named_uint("Single modifier gas", gas_used_single); + emit log_named_uint("Double modifier gas", gas_used_double); + assertTrue(gas_used_double + gas_used_single < gas_used_normal); + } + + function addInLoop() internal pure returns (uint256) { + uint256 b; + for (uint256 i; i < 10000; i++) { + b += i; + } + return b; + } + + function addInLoopNoGas() internal noGasMetering returns (uint256) { + return addInLoop(); + } + + function addInLoopNoGasNoGas() internal noGasMetering returns (uint256) { + return addInLoopNoGas(); + } + + function bytesToUint_test(bytes memory b) private pure returns (uint256) { + uint256 number; + for (uint256 i = 0; i < b.length; i++) { + number = number + uint256(uint8(b[i])) * (2 ** (8 * (b.length - (i + 1)))); + } + return number; + } + + function testAssumeNoPrecompiles(address addr) external { + assumeNoPrecompiles(addr, getChain("optimism_goerli").chainId); + assertTrue( + addr < address(1) || (addr > address(9) && addr < address(0x4200000000000000000000000000000000000000)) + || addr > address(0x4200000000000000000000000000000000000800) + ); + } + + function testAssumePayable() external { + // all should revert since these addresses are not payable + + // VM address + vm.expectRevert(); + assumePayable(0x7109709ECfa91a80626fF3989D68f67F5b1DD12D); + + // Console address + vm.expectRevert(); + assumePayable(0x000000000000000000636F6e736F6c652e6c6f67); + + // Create2Deployer + vm.expectRevert(); + assumePayable(0x4e59b44847b379578588920cA78FbF26c0B4956C); + } + + function testAssumePayable(address addr) external { + assumePayable(addr); + assertTrue( + addr != 0x7109709ECfa91a80626fF3989D68f67F5b1DD12D && addr != 0x000000000000000000636F6e736F6c652e6c6f67 + && addr != 0x4e59b44847b379578588920cA78FbF26c0B4956C + ); + } +} + +contract Bar { + constructor() payable { + /// `DEAL` STDCHEAT + totalSupply = 10000e18; + balanceOf[address(this)] = totalSupply; + } + + /// `HOAX` STDCHEATS + function bar(address expectedSender) public payable { + require(msg.sender == expectedSender, "!prank"); + } + + function origin(address expectedSender) public payable { + require(msg.sender == expectedSender, "!prank"); + require(tx.origin == expectedSender, "!prank"); + } + + function origin(address expectedSender, address expectedOrigin) public payable { + require(msg.sender == expectedSender, "!prank"); + require(tx.origin == expectedOrigin, "!prank"); + } + + /// `DEAL` STDCHEAT + mapping(address => uint256) public balanceOf; + uint256 public totalSupply; +} + +contract RevertingContract { + constructor() { + revert(); + } +} diff --git a/lib/forge-std/test/StdError.t.sol b/lib/forge-std/test/StdError.t.sol new file mode 100644 index 0000000..ccd3efa --- /dev/null +++ b/lib/forge-std/test/StdError.t.sol @@ -0,0 +1,118 @@ +// SPDX-License-Identifier: MIT +pragma solidity >=0.8.0 <0.9.0; + +import "../src/StdError.sol"; +import "../src/Test.sol"; + +contract StdErrorsTest is Test { + ErrorsTest test; + + function setUp() public { + test = new ErrorsTest(); + } + + function testExpectAssertion() public { + vm.expectRevert(stdError.assertionError); + test.assertionError(); + } + + function testExpectArithmetic() public { + vm.expectRevert(stdError.arithmeticError); + test.arithmeticError(10); + } + + function testExpectDiv() public { + vm.expectRevert(stdError.divisionError); + test.divError(0); + } + + function testExpectMod() public { + vm.expectRevert(stdError.divisionError); + test.modError(0); + } + + function testExpectEnum() public { + vm.expectRevert(stdError.enumConversionError); + test.enumConversion(1); + } + + function testExpectEncodeStg() public { + vm.expectRevert(stdError.encodeStorageError); + test.encodeStgError(); + } + + function testExpectPop() public { + vm.expectRevert(stdError.popError); + test.pop(); + } + + function testExpectOOB() public { + vm.expectRevert(stdError.indexOOBError); + test.indexOOBError(1); + } + + function testExpectMem() public { + vm.expectRevert(stdError.memOverflowError); + test.mem(); + } + + function testExpectIntern() public { + vm.expectRevert(stdError.zeroVarError); + test.intern(); + } +} + +contract ErrorsTest { + enum T {T1} + + uint256[] public someArr; + bytes someBytes; + + function assertionError() public pure { + assert(false); + } + + function arithmeticError(uint256 a) public pure { + a -= 100; + } + + function divError(uint256 a) public pure { + 100 / a; + } + + function modError(uint256 a) public pure { + 100 % a; + } + + function enumConversion(uint256 a) public pure { + T(a); + } + + function encodeStgError() public { + /// @solidity memory-safe-assembly + assembly { + sstore(someBytes.slot, 1) + } + keccak256(someBytes); + } + + function pop() public { + someArr.pop(); + } + + function indexOOBError(uint256 a) public pure { + uint256[] memory t = new uint256[](0); + t[a]; + } + + function mem() public pure { + uint256 l = 2 ** 256 / 32; + new uint256[](l); + } + + function intern() public returns (uint256) { + function(uint256) internal returns (uint256) x; + x(2); + return 7; + } +} diff --git a/lib/forge-std/test/StdMath.t.sol b/lib/forge-std/test/StdMath.t.sol new file mode 100644 index 0000000..95037ea --- /dev/null +++ b/lib/forge-std/test/StdMath.t.sol @@ -0,0 +1,197 @@ +// SPDX-License-Identifier: MIT +pragma solidity >=0.8.0 <0.9.0; + +import "../src/StdMath.sol"; +import "../src/Test.sol"; + +contract StdMathTest is Test { + function testGetAbs() external { + assertEq(stdMath.abs(-50), 50); + assertEq(stdMath.abs(50), 50); + assertEq(stdMath.abs(-1337), 1337); + assertEq(stdMath.abs(0), 0); + + assertEq(stdMath.abs(type(int256).min), (type(uint256).max >> 1) + 1); + assertEq(stdMath.abs(type(int256).max), (type(uint256).max >> 1)); + } + + function testGetAbs_Fuzz(int256 a) external { + uint256 manualAbs = getAbs(a); + + uint256 abs = stdMath.abs(a); + + assertEq(abs, manualAbs); + } + + function testGetDelta_Uint() external { + assertEq(stdMath.delta(uint256(0), uint256(0)), 0); + assertEq(stdMath.delta(uint256(0), uint256(1337)), 1337); + assertEq(stdMath.delta(uint256(0), type(uint64).max), type(uint64).max); + assertEq(stdMath.delta(uint256(0), type(uint128).max), type(uint128).max); + assertEq(stdMath.delta(uint256(0), type(uint256).max), type(uint256).max); + + assertEq(stdMath.delta(0, uint256(0)), 0); + assertEq(stdMath.delta(1337, uint256(0)), 1337); + assertEq(stdMath.delta(type(uint64).max, uint256(0)), type(uint64).max); + assertEq(stdMath.delta(type(uint128).max, uint256(0)), type(uint128).max); + assertEq(stdMath.delta(type(uint256).max, uint256(0)), type(uint256).max); + + assertEq(stdMath.delta(1337, uint256(1337)), 0); + assertEq(stdMath.delta(type(uint256).max, type(uint256).max), 0); + assertEq(stdMath.delta(5000, uint256(1250)), 3750); + } + + function testGetDelta_Uint_Fuzz(uint256 a, uint256 b) external { + uint256 manualDelta; + if (a > b) { + manualDelta = a - b; + } else { + manualDelta = b - a; + } + + uint256 delta = stdMath.delta(a, b); + + assertEq(delta, manualDelta); + } + + function testGetDelta_Int() external { + assertEq(stdMath.delta(int256(0), int256(0)), 0); + assertEq(stdMath.delta(int256(0), int256(1337)), 1337); + assertEq(stdMath.delta(int256(0), type(int64).max), type(uint64).max >> 1); + assertEq(stdMath.delta(int256(0), type(int128).max), type(uint128).max >> 1); + assertEq(stdMath.delta(int256(0), type(int256).max), type(uint256).max >> 1); + + assertEq(stdMath.delta(0, int256(0)), 0); + assertEq(stdMath.delta(1337, int256(0)), 1337); + assertEq(stdMath.delta(type(int64).max, int256(0)), type(uint64).max >> 1); + assertEq(stdMath.delta(type(int128).max, int256(0)), type(uint128).max >> 1); + assertEq(stdMath.delta(type(int256).max, int256(0)), type(uint256).max >> 1); + + assertEq(stdMath.delta(-0, int256(0)), 0); + assertEq(stdMath.delta(-1337, int256(0)), 1337); + assertEq(stdMath.delta(type(int64).min, int256(0)), (type(uint64).max >> 1) + 1); + assertEq(stdMath.delta(type(int128).min, int256(0)), (type(uint128).max >> 1) + 1); + assertEq(stdMath.delta(type(int256).min, int256(0)), (type(uint256).max >> 1) + 1); + + assertEq(stdMath.delta(int256(0), -0), 0); + assertEq(stdMath.delta(int256(0), -1337), 1337); + assertEq(stdMath.delta(int256(0), type(int64).min), (type(uint64).max >> 1) + 1); + assertEq(stdMath.delta(int256(0), type(int128).min), (type(uint128).max >> 1) + 1); + assertEq(stdMath.delta(int256(0), type(int256).min), (type(uint256).max >> 1) + 1); + + assertEq(stdMath.delta(1337, int256(1337)), 0); + assertEq(stdMath.delta(type(int256).max, type(int256).max), 0); + assertEq(stdMath.delta(type(int256).min, type(int256).min), 0); + assertEq(stdMath.delta(type(int256).min, type(int256).max), type(uint256).max); + assertEq(stdMath.delta(5000, int256(1250)), 3750); + } + + function testGetDelta_Int_Fuzz(int256 a, int256 b) external { + uint256 absA = getAbs(a); + uint256 absB = getAbs(b); + uint256 absDelta = absA > absB ? absA - absB : absB - absA; + + uint256 manualDelta; + if ((a >= 0 && b >= 0) || (a < 0 && b < 0)) { + manualDelta = absDelta; + } + // (a < 0 && b >= 0) || (a >= 0 && b < 0) + else { + manualDelta = absA + absB; + } + + uint256 delta = stdMath.delta(a, b); + + assertEq(delta, manualDelta); + } + + function testGetPercentDelta_Uint() external { + assertEq(stdMath.percentDelta(uint256(0), uint256(1337)), 1e18); + assertEq(stdMath.percentDelta(uint256(0), type(uint64).max), 1e18); + assertEq(stdMath.percentDelta(uint256(0), type(uint128).max), 1e18); + assertEq(stdMath.percentDelta(uint256(0), type(uint192).max), 1e18); + + assertEq(stdMath.percentDelta(1337, uint256(1337)), 0); + assertEq(stdMath.percentDelta(type(uint192).max, type(uint192).max), 0); + assertEq(stdMath.percentDelta(0, uint256(2500)), 1e18); + assertEq(stdMath.percentDelta(2500, uint256(2500)), 0); + assertEq(stdMath.percentDelta(5000, uint256(2500)), 1e18); + assertEq(stdMath.percentDelta(7500, uint256(2500)), 2e18); + + vm.expectRevert(stdError.divisionError); + stdMath.percentDelta(uint256(1), 0); + } + + function testGetPercentDelta_Uint_Fuzz(uint192 a, uint192 b) external { + vm.assume(b != 0); + uint256 manualDelta; + if (a > b) { + manualDelta = a - b; + } else { + manualDelta = b - a; + } + + uint256 manualPercentDelta = manualDelta * 1e18 / b; + uint256 percentDelta = stdMath.percentDelta(a, b); + + assertEq(percentDelta, manualPercentDelta); + } + + function testGetPercentDelta_Int() external { + assertEq(stdMath.percentDelta(int256(0), int256(1337)), 1e18); + assertEq(stdMath.percentDelta(int256(0), -1337), 1e18); + assertEq(stdMath.percentDelta(int256(0), type(int64).min), 1e18); + assertEq(stdMath.percentDelta(int256(0), type(int128).min), 1e18); + assertEq(stdMath.percentDelta(int256(0), type(int192).min), 1e18); + assertEq(stdMath.percentDelta(int256(0), type(int64).max), 1e18); + assertEq(stdMath.percentDelta(int256(0), type(int128).max), 1e18); + assertEq(stdMath.percentDelta(int256(0), type(int192).max), 1e18); + + assertEq(stdMath.percentDelta(1337, int256(1337)), 0); + assertEq(stdMath.percentDelta(type(int192).max, type(int192).max), 0); + assertEq(stdMath.percentDelta(type(int192).min, type(int192).min), 0); + + assertEq(stdMath.percentDelta(type(int192).min, type(int192).max), 2e18); // rounds the 1 wei diff down + assertEq(stdMath.percentDelta(type(int192).max, type(int192).min), 2e18 - 1); // rounds the 1 wei diff down + assertEq(stdMath.percentDelta(0, int256(2500)), 1e18); + assertEq(stdMath.percentDelta(2500, int256(2500)), 0); + assertEq(stdMath.percentDelta(5000, int256(2500)), 1e18); + assertEq(stdMath.percentDelta(7500, int256(2500)), 2e18); + + vm.expectRevert(stdError.divisionError); + stdMath.percentDelta(int256(1), 0); + } + + function testGetPercentDelta_Int_Fuzz(int192 a, int192 b) external { + vm.assume(b != 0); + uint256 absA = getAbs(a); + uint256 absB = getAbs(b); + uint256 absDelta = absA > absB ? absA - absB : absB - absA; + + uint256 manualDelta; + if ((a >= 0 && b >= 0) || (a < 0 && b < 0)) { + manualDelta = absDelta; + } + // (a < 0 && b >= 0) || (a >= 0 && b < 0) + else { + manualDelta = absA + absB; + } + + uint256 manualPercentDelta = manualDelta * 1e18 / absB; + uint256 percentDelta = stdMath.percentDelta(a, b); + + assertEq(percentDelta, manualPercentDelta); + } + + /*////////////////////////////////////////////////////////////////////////// + HELPERS + //////////////////////////////////////////////////////////////////////////*/ + + function getAbs(int256 a) private pure returns (uint256) { + if (a < 0) { + return a == type(int256).min ? uint256(type(int256).max) + 1 : uint256(-a); + } + + return uint256(a); + } +} diff --git a/lib/forge-std/test/StdStorage.t.sol b/lib/forge-std/test/StdStorage.t.sol new file mode 100644 index 0000000..d4c563a --- /dev/null +++ b/lib/forge-std/test/StdStorage.t.sol @@ -0,0 +1,283 @@ +// SPDX-License-Identifier: MIT +pragma solidity >=0.7.0 <0.9.0; + +import "../src/StdStorage.sol"; +import "../src/Test.sol"; + +contract StdStorageTest is Test { + using stdStorage for StdStorage; + + StorageTest internal test; + + function setUp() public { + test = new StorageTest(); + } + + function testStorageHidden() public { + assertEq(uint256(keccak256("my.random.var")), stdstore.target(address(test)).sig("hidden()").find()); + } + + function testStorageObvious() public { + assertEq(uint256(0), stdstore.target(address(test)).sig("exists()").find()); + } + + function testStorageCheckedWriteHidden() public { + stdstore.target(address(test)).sig(test.hidden.selector).checked_write(100); + assertEq(uint256(test.hidden()), 100); + } + + function testStorageCheckedWriteObvious() public { + stdstore.target(address(test)).sig(test.exists.selector).checked_write(100); + assertEq(test.exists(), 100); + } + + function testStorageMapStructA() public { + uint256 slot = + stdstore.target(address(test)).sig(test.map_struct.selector).with_key(address(this)).depth(0).find(); + assertEq(uint256(keccak256(abi.encode(address(this), 4))), slot); + } + + function testStorageMapStructB() public { + uint256 slot = + stdstore.target(address(test)).sig(test.map_struct.selector).with_key(address(this)).depth(1).find(); + assertEq(uint256(keccak256(abi.encode(address(this), 4))) + 1, slot); + } + + function testStorageDeepMap() public { + uint256 slot = stdstore.target(address(test)).sig(test.deep_map.selector).with_key(address(this)).with_key( + address(this) + ).find(); + assertEq(uint256(keccak256(abi.encode(address(this), keccak256(abi.encode(address(this), uint256(5)))))), slot); + } + + function testStorageCheckedWriteDeepMap() public { + stdstore.target(address(test)).sig(test.deep_map.selector).with_key(address(this)).with_key(address(this)) + .checked_write(100); + assertEq(100, test.deep_map(address(this), address(this))); + } + + function testStorageDeepMapStructA() public { + uint256 slot = stdstore.target(address(test)).sig(test.deep_map_struct.selector).with_key(address(this)) + .with_key(address(this)).depth(0).find(); + assertEq( + bytes32(uint256(keccak256(abi.encode(address(this), keccak256(abi.encode(address(this), uint256(6)))))) + 0), + bytes32(slot) + ); + } + + function testStorageDeepMapStructB() public { + uint256 slot = stdstore.target(address(test)).sig(test.deep_map_struct.selector).with_key(address(this)) + .with_key(address(this)).depth(1).find(); + assertEq( + bytes32(uint256(keccak256(abi.encode(address(this), keccak256(abi.encode(address(this), uint256(6)))))) + 1), + bytes32(slot) + ); + } + + function testStorageCheckedWriteDeepMapStructA() public { + stdstore.target(address(test)).sig(test.deep_map_struct.selector).with_key(address(this)).with_key( + address(this) + ).depth(0).checked_write(100); + (uint256 a, uint256 b) = test.deep_map_struct(address(this), address(this)); + assertEq(100, a); + assertEq(0, b); + } + + function testStorageCheckedWriteDeepMapStructB() public { + stdstore.target(address(test)).sig(test.deep_map_struct.selector).with_key(address(this)).with_key( + address(this) + ).depth(1).checked_write(100); + (uint256 a, uint256 b) = test.deep_map_struct(address(this), address(this)); + assertEq(0, a); + assertEq(100, b); + } + + function testStorageCheckedWriteMapStructA() public { + stdstore.target(address(test)).sig(test.map_struct.selector).with_key(address(this)).depth(0).checked_write(100); + (uint256 a, uint256 b) = test.map_struct(address(this)); + assertEq(a, 100); + assertEq(b, 0); + } + + function testStorageCheckedWriteMapStructB() public { + stdstore.target(address(test)).sig(test.map_struct.selector).with_key(address(this)).depth(1).checked_write(100); + (uint256 a, uint256 b) = test.map_struct(address(this)); + assertEq(a, 0); + assertEq(b, 100); + } + + function testStorageStructA() public { + uint256 slot = stdstore.target(address(test)).sig(test.basic.selector).depth(0).find(); + assertEq(uint256(7), slot); + } + + function testStorageStructB() public { + uint256 slot = stdstore.target(address(test)).sig(test.basic.selector).depth(1).find(); + assertEq(uint256(7) + 1, slot); + } + + function testStorageCheckedWriteStructA() public { + stdstore.target(address(test)).sig(test.basic.selector).depth(0).checked_write(100); + (uint256 a, uint256 b) = test.basic(); + assertEq(a, 100); + assertEq(b, 1337); + } + + function testStorageCheckedWriteStructB() public { + stdstore.target(address(test)).sig(test.basic.selector).depth(1).checked_write(100); + (uint256 a, uint256 b) = test.basic(); + assertEq(a, 1337); + assertEq(b, 100); + } + + function testStorageMapAddrFound() public { + uint256 slot = stdstore.target(address(test)).sig(test.map_addr.selector).with_key(address(this)).find(); + assertEq(uint256(keccak256(abi.encode(address(this), uint256(1)))), slot); + } + + function testStorageMapUintFound() public { + uint256 slot = stdstore.target(address(test)).sig(test.map_uint.selector).with_key(100).find(); + assertEq(uint256(keccak256(abi.encode(100, uint256(2)))), slot); + } + + function testStorageCheckedWriteMapUint() public { + stdstore.target(address(test)).sig(test.map_uint.selector).with_key(100).checked_write(100); + assertEq(100, test.map_uint(100)); + } + + function testStorageCheckedWriteMapAddr() public { + stdstore.target(address(test)).sig(test.map_addr.selector).with_key(address(this)).checked_write(100); + assertEq(100, test.map_addr(address(this))); + } + + function testStorageCheckedWriteMapBool() public { + stdstore.target(address(test)).sig(test.map_bool.selector).with_key(address(this)).checked_write(true); + assertTrue(test.map_bool(address(this))); + } + + function testFailStorageCheckedWriteMapPacked() public { + // expect PackedSlot error but not external call so cant expectRevert + stdstore.target(address(test)).sig(test.read_struct_lower.selector).with_key(address(uint160(1337))) + .checked_write(100); + } + + function testStorageCheckedWriteMapPackedSuccess() public { + uint256 full = test.map_packed(address(1337)); + // keep upper 128, set lower 128 to 1337 + full = (full & (uint256((1 << 128) - 1) << 128)) | 1337; + stdstore.target(address(test)).sig(test.map_packed.selector).with_key(address(uint160(1337))).checked_write( + full + ); + assertEq(1337, test.read_struct_lower(address(1337))); + } + + function testFailStorageConst() public { + // vm.expectRevert(abi.encodeWithSignature("NotStorage(bytes4)", bytes4(keccak256("const()")))); + stdstore.target(address(test)).sig("const()").find(); + } + + function testFailStorageNativePack() public { + stdstore.target(address(test)).sig(test.tA.selector).find(); + stdstore.target(address(test)).sig(test.tB.selector).find(); + + // these both would fail + stdstore.target(address(test)).sig(test.tC.selector).find(); + stdstore.target(address(test)).sig(test.tD.selector).find(); + } + + function testStorageReadBytes32() public { + bytes32 val = stdstore.target(address(test)).sig(test.tE.selector).read_bytes32(); + assertEq(val, hex"1337"); + } + + function testStorageReadBool_False() public { + bool val = stdstore.target(address(test)).sig(test.tB.selector).read_bool(); + assertEq(val, false); + } + + function testStorageReadBool_True() public { + bool val = stdstore.target(address(test)).sig(test.tH.selector).read_bool(); + assertEq(val, true); + } + + function testStorageReadBool_Revert() public { + vm.expectRevert("stdStorage read_bool(StdStorage): Cannot decode. Make sure you are reading a bool."); + this.readNonBoolValue(); + } + + function readNonBoolValue() public { + stdstore.target(address(test)).sig(test.tE.selector).read_bool(); + } + + function testStorageReadAddress() public { + address val = stdstore.target(address(test)).sig(test.tF.selector).read_address(); + assertEq(val, address(1337)); + } + + function testStorageReadUint() public { + uint256 val = stdstore.target(address(test)).sig(test.exists.selector).read_uint(); + assertEq(val, 1); + } + + function testStorageReadInt() public { + int256 val = stdstore.target(address(test)).sig(test.tG.selector).read_int(); + assertEq(val, type(int256).min); + } +} + +contract StorageTest { + uint256 public exists = 1; + mapping(address => uint256) public map_addr; + mapping(uint256 => uint256) public map_uint; + mapping(address => uint256) public map_packed; + mapping(address => UnpackedStruct) public map_struct; + mapping(address => mapping(address => uint256)) public deep_map; + mapping(address => mapping(address => UnpackedStruct)) public deep_map_struct; + UnpackedStruct public basic; + + uint248 public tA; + bool public tB; + + bool public tC = false; + uint248 public tD = 1; + + struct UnpackedStruct { + uint256 a; + uint256 b; + } + + mapping(address => bool) public map_bool; + + bytes32 public tE = hex"1337"; + address public tF = address(1337); + int256 public tG = type(int256).min; + bool public tH = true; + + constructor() { + basic = UnpackedStruct({a: 1337, b: 1337}); + + uint256 two = (1 << 128) | 1; + map_packed[msg.sender] = two; + map_packed[address(uint160(1337))] = 1 << 128; + } + + function read_struct_upper(address who) public view returns (uint256) { + return map_packed[who] >> 128; + } + + function read_struct_lower(address who) public view returns (uint256) { + return map_packed[who] & ((1 << 128) - 1); + } + + function hidden() public view returns (bytes32 t) { + bytes32 slot = keccak256("my.random.var"); + /// @solidity memory-safe-assembly + assembly { + t := sload(slot) + } + } + + function const() public pure returns (bytes32 t) { + t = bytes32(hex"1337"); + } +} diff --git a/lib/forge-std/test/StdUtils.t.sol b/lib/forge-std/test/StdUtils.t.sol new file mode 100644 index 0000000..f53a71b --- /dev/null +++ b/lib/forge-std/test/StdUtils.t.sol @@ -0,0 +1,191 @@ +// SPDX-License-Identifier: MIT +pragma solidity >=0.7.0 <0.9.0; + +import "../src/Test.sol"; + +contract StdUtilsTest is Test { + function testBound() public { + assertEq(bound(uint256(5), 0, 4), 0); + assertEq(bound(uint256(0), 69, 69), 69); + assertEq(bound(uint256(0), 68, 69), 68); + assertEq(bound(uint256(10), 150, 190), 174); + assertEq(bound(uint256(300), 2800, 3200), 3107); + assertEq(bound(uint256(9999), 1337, 6666), 4669); + } + + function testBound_WithinRange() public { + assertEq(bound(uint256(51), 50, 150), 51); + assertEq(bound(uint256(51), 50, 150), bound(bound(uint256(51), 50, 150), 50, 150)); + assertEq(bound(uint256(149), 50, 150), 149); + assertEq(bound(uint256(149), 50, 150), bound(bound(uint256(149), 50, 150), 50, 150)); + } + + function testBound_EdgeCoverage() public { + assertEq(bound(uint256(0), 50, 150), 50); + assertEq(bound(uint256(1), 50, 150), 51); + assertEq(bound(uint256(2), 50, 150), 52); + assertEq(bound(uint256(3), 50, 150), 53); + assertEq(bound(type(uint256).max, 50, 150), 150); + assertEq(bound(type(uint256).max - 1, 50, 150), 149); + assertEq(bound(type(uint256).max - 2, 50, 150), 148); + assertEq(bound(type(uint256).max - 3, 50, 150), 147); + } + + function testBound_DistributionIsEven(uint256 min, uint256 size) public { + size = size % 100 + 1; + min = bound(min, UINT256_MAX / 2, UINT256_MAX / 2 + size); + uint256 max = min + size - 1; + uint256 result; + + for (uint256 i = 1; i <= size * 4; ++i) { + // x > max + result = bound(max + i, min, max); + assertEq(result, min + (i - 1) % size); + // x < min + result = bound(min - i, min, max); + assertEq(result, max - (i - 1) % size); + } + } + + function testBound(uint256 num, uint256 min, uint256 max) public { + if (min > max) (min, max) = (max, min); + + uint256 result = bound(num, min, max); + + assertGe(result, min); + assertLe(result, max); + assertEq(result, bound(result, min, max)); + if (num >= min && num <= max) assertEq(result, num); + } + + function testBoundUint256Max() public { + assertEq(bound(0, type(uint256).max - 1, type(uint256).max), type(uint256).max - 1); + assertEq(bound(1, type(uint256).max - 1, type(uint256).max), type(uint256).max); + } + + function testCannotBoundMaxLessThanMin() public { + vm.expectRevert(bytes("StdUtils bound(uint256,uint256,uint256): Max is less than min.")); + bound(uint256(5), 100, 10); + } + + function testCannotBoundMaxLessThanMin(uint256 num, uint256 min, uint256 max) public { + vm.assume(min > max); + vm.expectRevert(bytes("StdUtils bound(uint256,uint256,uint256): Max is less than min.")); + bound(num, min, max); + } + + function testBoundInt() public { + assertEq(bound(-3, 0, 4), 2); + assertEq(bound(0, -69, -69), -69); + assertEq(bound(0, -69, -68), -68); + assertEq(bound(-10, 150, 190), 154); + assertEq(bound(-300, 2800, 3200), 2908); + assertEq(bound(9999, -1337, 6666), 1995); + } + + function testBoundInt_WithinRange() public { + assertEq(bound(51, -50, 150), 51); + assertEq(bound(51, -50, 150), bound(bound(51, -50, 150), -50, 150)); + assertEq(bound(149, -50, 150), 149); + assertEq(bound(149, -50, 150), bound(bound(149, -50, 150), -50, 150)); + } + + function testBoundInt_EdgeCoverage() public { + assertEq(bound(type(int256).min, -50, 150), -50); + assertEq(bound(type(int256).min + 1, -50, 150), -49); + assertEq(bound(type(int256).min + 2, -50, 150), -48); + assertEq(bound(type(int256).min + 3, -50, 150), -47); + assertEq(bound(type(int256).min, 10, 150), 10); + assertEq(bound(type(int256).min + 1, 10, 150), 11); + assertEq(bound(type(int256).min + 2, 10, 150), 12); + assertEq(bound(type(int256).min + 3, 10, 150), 13); + + assertEq(bound(type(int256).max, -50, 150), 150); + assertEq(bound(type(int256).max - 1, -50, 150), 149); + assertEq(bound(type(int256).max - 2, -50, 150), 148); + assertEq(bound(type(int256).max - 3, -50, 150), 147); + assertEq(bound(type(int256).max, -50, -10), -10); + assertEq(bound(type(int256).max - 1, -50, -10), -11); + assertEq(bound(type(int256).max - 2, -50, -10), -12); + assertEq(bound(type(int256).max - 3, -50, -10), -13); + } + + function testBoundInt_DistributionIsEven(int256 min, uint256 size) public { + size = size % 100 + 1; + min = bound(min, -int256(size / 2), int256(size - size / 2)); + int256 max = min + int256(size) - 1; + int256 result; + + for (uint256 i = 1; i <= size * 4; ++i) { + // x > max + result = bound(max + int256(i), min, max); + assertEq(result, min + int256((i - 1) % size)); + // x < min + result = bound(min - int256(i), min, max); + assertEq(result, max - int256((i - 1) % size)); + } + } + + function testBoundInt(int256 num, int256 min, int256 max) public { + if (min > max) (min, max) = (max, min); + + int256 result = bound(num, min, max); + + assertGe(result, min); + assertLe(result, max); + assertEq(result, bound(result, min, max)); + if (num >= min && num <= max) assertEq(result, num); + } + + function testBoundIntInt256Max() public { + assertEq(bound(0, type(int256).max - 1, type(int256).max), type(int256).max - 1); + assertEq(bound(1, type(int256).max - 1, type(int256).max), type(int256).max); + } + + function testBoundIntInt256Min() public { + assertEq(bound(0, type(int256).min, type(int256).min + 1), type(int256).min); + assertEq(bound(1, type(int256).min, type(int256).min + 1), type(int256).min + 1); + } + + function testCannotBoundIntMaxLessThanMin() public { + vm.expectRevert(bytes("StdUtils bound(int256,int256,int256): Max is less than min.")); + bound(-5, 100, 10); + } + + function testCannotBoundIntMaxLessThanMin(int256 num, int256 min, int256 max) public { + vm.assume(min > max); + vm.expectRevert(bytes("StdUtils bound(int256,int256,int256): Max is less than min.")); + bound(num, min, max); + } + + function testGenerateCreateAddress() external { + address deployer = 0x6C9FC64A53c1b71FB3f9Af64d1ae3A4931A5f4E9; + uint256 nonce = 14; + address createAddress = computeCreateAddress(deployer, nonce); + assertEq(createAddress, 0x68b3465833fb72A70ecDF485E0e4C7bD8665Fc45); + } + + function testGenerateCreate2Address() external { + bytes32 salt = bytes32(uint256(31415)); + bytes32 initcodeHash = keccak256(abi.encode(0x6080)); + address deployer = 0x6C9FC64A53c1b71FB3f9Af64d1ae3A4931A5f4E9; + address create2Address = computeCreate2Address(salt, initcodeHash, deployer); + assertEq(create2Address, 0xB147a5d25748fda14b463EB04B111027C290f4d3); + } + + function testBytesToUint() external { + bytes memory maxUint = hex"ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff"; + bytes memory two = hex"02"; + bytes memory millionEther = hex"d3c21bcecceda1000000"; + + assertEq(bytesToUint(maxUint), type(uint256).max); + assertEq(bytesToUint(two), 2); + assertEq(bytesToUint(millionEther), 1_000_000 ether); + } + + function testCannotConvertGT32Bytes() external { + bytes memory thirty3Bytes = hex"ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff"; + vm.expectRevert("StdUtils bytesToUint(bytes): Bytes length exceeds 32."); + bytesToUint(thirty3Bytes); + } +} diff --git a/lib/forge-std/test/compilation/CompilationScript.sol b/lib/forge-std/test/compilation/CompilationScript.sol new file mode 100644 index 0000000..e205cff --- /dev/null +++ b/lib/forge-std/test/compilation/CompilationScript.sol @@ -0,0 +1,10 @@ +// SPDX-License-Identifier: MIT +pragma solidity >=0.6.2 <0.9.0; + +pragma experimental ABIEncoderV2; + +import "../../src/Script.sol"; + +// The purpose of this contract is to benchmark compilation time to avoid accidentally introducing +// a change that results in very long compilation times with via-ir. See https://github.com/foundry-rs/forge-std/issues/207 +contract CompilationScript is Script {} diff --git a/lib/forge-std/test/compilation/CompilationScriptBase.sol b/lib/forge-std/test/compilation/CompilationScriptBase.sol new file mode 100644 index 0000000..ce8e0e9 --- /dev/null +++ b/lib/forge-std/test/compilation/CompilationScriptBase.sol @@ -0,0 +1,10 @@ +// SPDX-License-Identifier: MIT +pragma solidity >=0.6.2 <0.9.0; + +pragma experimental ABIEncoderV2; + +import "../../src/Script.sol"; + +// The purpose of this contract is to benchmark compilation time to avoid accidentally introducing +// a change that results in very long compilation times with via-ir. See https://github.com/foundry-rs/forge-std/issues/207 +contract CompilationScriptBase is ScriptBase {} diff --git a/lib/forge-std/test/compilation/CompilationTest.sol b/lib/forge-std/test/compilation/CompilationTest.sol new file mode 100644 index 0000000..9beeafe --- /dev/null +++ b/lib/forge-std/test/compilation/CompilationTest.sol @@ -0,0 +1,10 @@ +// SPDX-License-Identifier: MIT +pragma solidity >=0.6.2 <0.9.0; + +pragma experimental ABIEncoderV2; + +import "../../src/Test.sol"; + +// The purpose of this contract is to benchmark compilation time to avoid accidentally introducing +// a change that results in very long compilation times with via-ir. See https://github.com/foundry-rs/forge-std/issues/207 +contract CompilationTest is Test {} diff --git a/lib/forge-std/test/compilation/CompilationTestBase.sol b/lib/forge-std/test/compilation/CompilationTestBase.sol new file mode 100644 index 0000000..e993535 --- /dev/null +++ b/lib/forge-std/test/compilation/CompilationTestBase.sol @@ -0,0 +1,10 @@ +// SPDX-License-Identifier: MIT +pragma solidity >=0.6.2 <0.9.0; + +pragma experimental ABIEncoderV2; + +import "../../src/Test.sol"; + +// The purpose of this contract is to benchmark compilation time to avoid accidentally introducing +// a change that results in very long compilation times with via-ir. See https://github.com/foundry-rs/forge-std/issues/207 +contract CompilationTestBase is TestBase {} diff --git a/lib/forge-std/test/fixtures/broadcast.log.json b/lib/forge-std/test/fixtures/broadcast.log.json new file mode 100644 index 0000000..0a0200b --- /dev/null +++ b/lib/forge-std/test/fixtures/broadcast.log.json @@ -0,0 +1,187 @@ +{ + "transactions": [ + { + "hash": "0xc6006863c267735a11476b7f15b15bc718e117e2da114a2be815dd651e1a509f", + "type": "CALL", + "contractName": "Test", + "contractAddress": "0xe7f1725e7734ce288f8367e1bb143e90bb3f0512", + "function": "multiple_arguments(uint256,address,uint256[]):(uint256)", + "arguments": ["1", "0000000000000000000000000000000000001337", "[3,4]"], + "tx": { + "type": "0x02", + "from": "0xf39fd6e51aad88f6f4ce6ab8827279cfffb92266", + "to": "0xe7f1725e7734ce288f8367e1bb143e90bb3f0512", + "gas": "0x73b9", + "value": "0x0", + "data": 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"status": "0x1", + "logsBloom": "0x00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000", + "effectiveGasPrice": "0xee6b2800" + } + ], + "libraries": [ + "src/Broadcast.t.sol:F:0x5fbdb2315678afecb367f032d93f642f64180aa3" + ], + "pending": [], + "path": "broadcast/Broadcast.t.sol/31337/run-latest.json", + "returns": {}, + "timestamp": 1655140035 +} diff --git a/lib/openzeppelin-contracts/.changeset/beige-buses-drop.md b/lib/openzeppelin-contracts/.changeset/beige-buses-drop.md new file mode 100644 index 0000000..4566ecc --- /dev/null +++ b/lib/openzeppelin-contracts/.changeset/beige-buses-drop.md @@ -0,0 +1,5 @@ +--- +'openzeppelin-solidity': patch +--- + +`Initializable`: optimize `_disableInitializers` by using `!=` instead of `<`. ([#3787](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/3787)) diff --git a/lib/openzeppelin-contracts/.changeset/config.json b/lib/openzeppelin-contracts/.changeset/config.json new file mode 100644 index 0000000..66794fa --- /dev/null +++ b/lib/openzeppelin-contracts/.changeset/config.json @@ -0,0 +1,12 @@ +{ + "$schema": "https://unpkg.com/@changesets/config@2.3.0/schema.json", + "changelog": [ + "@changesets/changelog-github", + { + "repo": "OpenZeppelin/openzeppelin-contracts" + } + ], + "commit": false, + "access": "public", + "baseBranch": "master" +} diff --git a/lib/openzeppelin-contracts/.changeset/curvy-shrimps-enjoy.md b/lib/openzeppelin-contracts/.changeset/curvy-shrimps-enjoy.md new file mode 100644 index 0000000..4bc410a --- /dev/null +++ b/lib/openzeppelin-contracts/.changeset/curvy-shrimps-enjoy.md @@ -0,0 +1,5 @@ +--- +'openzeppelin-solidity': minor +--- + +`ReentrancyGuard`: Add a `_reentrancyGuardEntered` function to expose the guard status. ([#3714](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/3714)) diff --git a/lib/openzeppelin-contracts/.changeset/curvy-suns-sort.md b/lib/openzeppelin-contracts/.changeset/curvy-suns-sort.md new file mode 100644 index 0000000..97b51fe --- /dev/null +++ b/lib/openzeppelin-contracts/.changeset/curvy-suns-sort.md @@ -0,0 +1,5 @@ +--- +'openzeppelin-solidity': patch +--- + +`Ownable2Step`: make `acceptOwnership` public virtual to enable usecases that require overriding it. ([#3960](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/3960)) diff --git a/lib/openzeppelin-contracts/.changeset/famous-rules-burn.md b/lib/openzeppelin-contracts/.changeset/famous-rules-burn.md new file mode 100644 index 0000000..a746dc2 --- /dev/null +++ b/lib/openzeppelin-contracts/.changeset/famous-rules-burn.md @@ -0,0 +1,5 @@ +--- +'openzeppelin-solidity': minor +--- + +`EnumerableMap`: add a `keys()` function that returns an array containing all the keys. ([#3920](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/3920)) diff --git a/lib/openzeppelin-contracts/.changeset/funny-rockets-compete.md b/lib/openzeppelin-contracts/.changeset/funny-rockets-compete.md new file mode 100644 index 0000000..a8c77c6 --- /dev/null +++ b/lib/openzeppelin-contracts/.changeset/funny-rockets-compete.md @@ -0,0 +1,5 @@ +--- +'openzeppelin-solidity': patch +--- + +Reformatted codebase with latest version of Prettier Solidity. ([#3898](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/3898)) diff --git a/lib/openzeppelin-contracts/.changeset/gold-chicken-clean.md b/lib/openzeppelin-contracts/.changeset/gold-chicken-clean.md new file mode 100644 index 0000000..0d64fde --- /dev/null +++ b/lib/openzeppelin-contracts/.changeset/gold-chicken-clean.md @@ -0,0 +1,5 @@ +--- +'openzeppelin-solidity': minor +--- + +`Strings`: add `equal` method. ([#3774](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/3774)) diff --git a/lib/openzeppelin-contracts/.changeset/healthy-squids-stare.md b/lib/openzeppelin-contracts/.changeset/healthy-squids-stare.md new file mode 100644 index 0000000..fad0872 --- /dev/null +++ b/lib/openzeppelin-contracts/.changeset/healthy-squids-stare.md @@ -0,0 +1,5 @@ +--- +'openzeppelin-solidity': patch +--- + +`Math`: optimize `log256` rounding check. ([#3745](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/3745)) diff --git a/lib/openzeppelin-contracts/.changeset/lemon-dogs-kiss.md b/lib/openzeppelin-contracts/.changeset/lemon-dogs-kiss.md new file mode 100644 index 0000000..976949d --- /dev/null +++ b/lib/openzeppelin-contracts/.changeset/lemon-dogs-kiss.md @@ -0,0 +1,5 @@ +--- +'openzeppelin-solidity': patch +--- + +`ERC20Votes`: optimize by using unchecked arithmetic. ([#3748](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/3748)) diff --git a/lib/openzeppelin-contracts/.changeset/little-kiwis-ring.md b/lib/openzeppelin-contracts/.changeset/little-kiwis-ring.md new file mode 100644 index 0000000..a1cb7bb --- /dev/null +++ b/lib/openzeppelin-contracts/.changeset/little-kiwis-ring.md @@ -0,0 +1,5 @@ +--- +'openzeppelin-solidity': patch +--- + +`Multicall`: annotate `multicall` function as upgrade safe to not raise a flag for its delegatecall. ([#3961](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/3961)) diff --git a/lib/openzeppelin-contracts/.changeset/many-panthers-hide.md b/lib/openzeppelin-contracts/.changeset/many-panthers-hide.md new file mode 100644 index 0000000..5f04c99 --- /dev/null +++ b/lib/openzeppelin-contracts/.changeset/many-panthers-hide.md @@ -0,0 +1,5 @@ +--- +'openzeppelin-solidity': minor +--- + +`TransparentUpgradeableProxy`: support value passthrough for all ifAdmin function. diff --git a/lib/openzeppelin-contracts/.changeset/pretty-hornets-play.md b/lib/openzeppelin-contracts/.changeset/pretty-hornets-play.md new file mode 100644 index 0000000..230a53b --- /dev/null +++ b/lib/openzeppelin-contracts/.changeset/pretty-hornets-play.md @@ -0,0 +1,5 @@ +--- +'openzeppelin-solidity': minor +--- + +`Strings`: add `toString` method for signed integers. ([#3773](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/3773)) diff --git a/lib/openzeppelin-contracts/.changeset/strong-bulldogs-buy.md b/lib/openzeppelin-contracts/.changeset/strong-bulldogs-buy.md new file mode 100644 index 0000000..001b0f8 --- /dev/null +++ b/lib/openzeppelin-contracts/.changeset/strong-bulldogs-buy.md @@ -0,0 +1,5 @@ +--- +'openzeppelin-solidity': minor +--- + +`ERC1967Upgrade`: removed contract-wide `oz-upgrades-unsafe-allow delegatecall` annotation, replaced by granular annotation in `UUPSUpgradeable`. diff --git a/lib/openzeppelin-contracts/.changeset/tame-ladybugs-sit.md b/lib/openzeppelin-contracts/.changeset/tame-ladybugs-sit.md new file mode 100644 index 0000000..8a1e416 --- /dev/null +++ b/lib/openzeppelin-contracts/.changeset/tame-ladybugs-sit.md @@ -0,0 +1,5 @@ +--- +'openzeppelin-solidity': patch +--- + +`MerkleProof`: optimize by using unchecked arithmetic. ([#3745](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/3745)) diff --git a/lib/openzeppelin-contracts/.changeset/yellow-swans-cover.md b/lib/openzeppelin-contracts/.changeset/yellow-swans-cover.md new file mode 100644 index 0000000..ee16801 --- /dev/null +++ b/lib/openzeppelin-contracts/.changeset/yellow-swans-cover.md @@ -0,0 +1,5 @@ +--- +'openzeppelin-solidity': minor +--- + +`UUPSUpgradeable`: added granular `oz-upgrades-unsafe-allow-reachable` annotation to improve upgrade safety checks on latest version of the Upgrades Plugins (starting with `@openzeppelin/upgrades-core@1.21.0`). diff --git a/lib/openzeppelin-contracts/.codecov.yml b/lib/openzeppelin-contracts/.codecov.yml new file mode 100644 index 0000000..9455306 --- /dev/null +++ b/lib/openzeppelin-contracts/.codecov.yml @@ -0,0 +1,12 @@ +comment: off +github_checks: + annotations: false +coverage: + status: + patch: + default: + target: 95% + only_pulls: true + project: + default: + threshold: 1% diff --git a/lib/openzeppelin-contracts/.editorconfig b/lib/openzeppelin-contracts/.editorconfig new file mode 100644 index 0000000..f162e8d --- /dev/null +++ b/lib/openzeppelin-contracts/.editorconfig @@ -0,0 +1,21 @@ +# EditorConfig is awesome: https://EditorConfig.org + +# top-most EditorConfig file +root = true + +[*] +charset = utf-8 +end_of_line = lf +indent_style = space +insert_final_newline = true +trim_trailing_whitespace = false +max_line_length = 120 + +[*.sol] +indent_size = 4 + +[*.js] +indent_size = 2 + +[*.{adoc,md}] +max_line_length = 0 diff --git a/lib/openzeppelin-contracts/.eslintrc b/lib/openzeppelin-contracts/.eslintrc new file mode 100644 index 0000000..a5418c5 --- /dev/null +++ b/lib/openzeppelin-contracts/.eslintrc @@ -0,0 +1,20 @@ +{ + "root": true, + "extends" : [ + "eslint:recommended", + "prettier", + ], + "env": { + "es2022": true, + "browser": true, + "node": true, + "mocha": true, + }, + "globals" : { + "artifacts": "readonly", + "contract": "readonly", + "web3": "readonly", + "extendEnvironment": "readonly", + "expect": "readonly", + } +} diff --git a/lib/openzeppelin-contracts/.gitattributes b/lib/openzeppelin-contracts/.gitattributes new file mode 100644 index 0000000..52031de --- /dev/null +++ b/lib/openzeppelin-contracts/.gitattributes @@ -0,0 +1 @@ +*.sol linguist-language=Solidity diff --git a/lib/openzeppelin-contracts/.github/ISSUE_TEMPLATE/bug_report.md b/lib/openzeppelin-contracts/.github/ISSUE_TEMPLATE/bug_report.md new file mode 100644 index 0000000..2797a08 --- /dev/null +++ b/lib/openzeppelin-contracts/.github/ISSUE_TEMPLATE/bug_report.md @@ -0,0 +1,21 @@ +--- +name: Bug report +about: Report a bug in OpenZeppelin Contracts + +--- + + + + + +**💻 Environment** + + + +**📝 Details** + + + +**🔢 Code to reproduce bug** + + diff --git a/lib/openzeppelin-contracts/.github/ISSUE_TEMPLATE/config.yml b/lib/openzeppelin-contracts/.github/ISSUE_TEMPLATE/config.yml new file mode 100644 index 0000000..4018cef --- /dev/null +++ b/lib/openzeppelin-contracts/.github/ISSUE_TEMPLATE/config.yml @@ -0,0 +1,4 @@ +contact_links: + - name: Questions & Support Requests + url: https://forum.openzeppelin.com/c/support/contracts/18 + about: Ask in the OpenZeppelin Forum diff --git a/lib/openzeppelin-contracts/.github/ISSUE_TEMPLATE/feature_request.md b/lib/openzeppelin-contracts/.github/ISSUE_TEMPLATE/feature_request.md new file mode 100644 index 0000000..ff596b0 --- /dev/null +++ b/lib/openzeppelin-contracts/.github/ISSUE_TEMPLATE/feature_request.md @@ -0,0 +1,14 @@ +--- +name: Feature request +about: Suggest an idea for OpenZeppelin Contracts + +--- + +**🧐 Motivation** + + +**📝 Details** + + + + diff --git a/lib/openzeppelin-contracts/.github/PULL_REQUEST_TEMPLATE.md b/lib/openzeppelin-contracts/.github/PULL_REQUEST_TEMPLATE.md new file mode 100644 index 0000000..2394518 --- /dev/null +++ b/lib/openzeppelin-contracts/.github/PULL_REQUEST_TEMPLATE.md @@ -0,0 +1,20 @@ + + + + + +Fixes #???? + + + + + +#### PR Checklist + + + + + +- [ ] Tests +- [ ] Documentation +- [ ] Changeset entry (run `npx changeset add`) diff --git a/lib/openzeppelin-contracts/.github/actions/gas-compare/action.yml b/lib/openzeppelin-contracts/.github/actions/gas-compare/action.yml new file mode 100644 index 0000000..e38c48e --- /dev/null +++ b/lib/openzeppelin-contracts/.github/actions/gas-compare/action.yml @@ -0,0 +1,49 @@ +name: Compare gas costs +inputs: + token: + description: github token + required: true + report: + description: report to read from + required: false + default: gasReporterOutput.json + out_report: + description: report to read + required: false + default: ${{ github.ref_name }}.gasreport.json + ref_report: + description: report to read from + required: false + default: ${{ github.base_ref }}.gasreport.json + +runs: + using: composite + steps: + - name: Download reference report + if: github.event_name == 'pull_request' + run: | + RUN_ID=`gh run list --repo ${{ github.repository }} --branch ${{ github.base_ref }} --workflow ${{ github.workflow }} --limit 100 --json 'conclusion,databaseId,event' --jq 'map(select(.conclusion=="success" and .event!="pull_request"))[0].databaseId'` + gh run download ${RUN_ID} --repo ${{ github.repository }} -n gasreport + env: + GITHUB_TOKEN: ${{ inputs.token }} + shell: bash + continue-on-error: true + id: reference + - name: Compare reports + if: steps.reference.outcome == 'success' && github.event_name == 'pull_request' + run: | + node scripts/checks/compareGasReports.js ${{ inputs.report }} ${{ inputs.ref_report }} >> $GITHUB_STEP_SUMMARY + env: + STYLE: markdown + shell: bash + - name: Rename report for upload + if: github.event_name != 'pull_request' + run: | + mv ${{ inputs.report }} ${{ inputs.out_report }} + shell: bash + - name: Save report + if: github.event_name != 'pull_request' + uses: actions/upload-artifact@v3 + with: + name: gasreport + path: ${{ inputs.out_report }} diff --git a/lib/openzeppelin-contracts/.github/actions/setup/action.yml b/lib/openzeppelin-contracts/.github/actions/setup/action.yml new file mode 100644 index 0000000..680fba0 --- /dev/null +++ b/lib/openzeppelin-contracts/.github/actions/setup/action.yml @@ -0,0 +1,19 @@ +name: Setup + +runs: + using: composite + steps: + - uses: actions/setup-node@v3 + with: + node-version: 14.x + - uses: actions/cache@v3 + id: cache + with: + path: '**/node_modules' + key: npm-v3-${{ hashFiles('**/package-lock.json') }} + - name: Install dependencies + run: npm ci + shell: bash + if: steps.cache.outputs.cache-hit != 'true' + env: + SKIP_COMPILE: true diff --git a/lib/openzeppelin-contracts/.github/workflows/actionlint.yml b/lib/openzeppelin-contracts/.github/workflows/actionlint.yml new file mode 100644 index 0000000..8193109 --- /dev/null +++ b/lib/openzeppelin-contracts/.github/workflows/actionlint.yml @@ -0,0 +1,18 @@ +name: lint workflows + +on: + pull_request: + paths: + - '.github/**/*.ya?ml' + +jobs: + lint: + runs-on: ubuntu-latest + steps: + - uses: actions/checkout@v3 + - name: Add problem matchers + run: | + # https://github.com/rhysd/actionlint/blob/3a2f2c7/docs/usage.md#problem-matchers + curl -LO https://raw.githubusercontent.com/rhysd/actionlint/main/.github/actionlint-matcher.json + echo "::add-matcher::actionlint-matcher.json" + - uses: docker://rhysd/actionlint:latest diff --git a/lib/openzeppelin-contracts/.github/workflows/changeset.yml b/lib/openzeppelin-contracts/.github/workflows/changeset.yml new file mode 100644 index 0000000..5fe70cf --- /dev/null +++ b/lib/openzeppelin-contracts/.github/workflows/changeset.yml @@ -0,0 +1,28 @@ +name: changeset + +on: + pull_request: + branches: + - master + types: + - opened + - synchronize + - labeled + - unlabeled + +concurrency: + group: changeset-${{ github.ref }} + cancel-in-progress: true + +jobs: + check: + runs-on: ubuntu-latest + if: ${{ !contains(github.event.pull_request.labels.*.name, 'ignore-changeset') }} + steps: + - uses: actions/checkout@v3 + with: + fetch-depth: 0 # Include history so Changesets finds merge-base + - name: Set up environment + uses: ./.github/actions/setup + - name: Check changeset + run: npx changeset status --since=origin/${{ github.base_ref }} diff --git a/lib/openzeppelin-contracts/.github/workflows/checks.yml b/lib/openzeppelin-contracts/.github/workflows/checks.yml new file mode 100644 index 0000000..17d9e35 --- /dev/null +++ b/lib/openzeppelin-contracts/.github/workflows/checks.yml @@ -0,0 +1,91 @@ +name: checks + +on: + push: + branches: + - master + - release-v* + pull_request: {} + workflow_dispatch: {} + +concurrency: + group: checks-${{ github.ref }} + cancel-in-progress: true + +jobs: + lint: + if: github.repository != 'OpenZeppelin/openzeppelin-contracts-upgradeable' + runs-on: ubuntu-latest + steps: + - uses: actions/checkout@v3 + - name: Set up environment + uses: ./.github/actions/setup + - run: npm run lint + + tests: + runs-on: ubuntu-latest + env: + FORCE_COLOR: 1 + GAS: true + steps: + - uses: actions/checkout@v3 + - name: Set up environment + uses: ./.github/actions/setup + - name: Run tests and generate gas report + run: npm run test + - name: Check linearisation of the inheritance graph + run: npm run test:inheritance + - name: Check proceduraly generated contracts are up-to-date + if: github.repository != 'OpenZeppelin/openzeppelin-contracts-upgradeable' + run: npm run test:generation + - name: Compare gas costs + uses: ./.github/actions/gas-compare + with: + token: ${{ github.token }} + + foundry-tests: + if: github.repository != 'OpenZeppelin/openzeppelin-contracts-upgradeable' + runs-on: ubuntu-latest + steps: + - uses: actions/checkout@v3 + with: + submodules: recursive + - name: Install Foundry + uses: foundry-rs/foundry-toolchain@v1 + with: + version: nightly + - name: Run tests + run: forge test -vv + + coverage: + if: github.repository != 'OpenZeppelin/openzeppelin-contracts-upgradeable' + runs-on: ubuntu-latest + steps: + - uses: actions/checkout@v3 + - name: Set up environment + uses: ./.github/actions/setup + - run: npm run coverage + env: + NODE_OPTIONS: --max_old_space_size=4096 + - uses: codecov/codecov-action@v3 + + slither: + if: github.repository != 'OpenZeppelin/openzeppelin-contracts-upgradeable' + runs-on: ubuntu-latest + steps: + - uses: actions/checkout@v3 + - name: Set up environment + uses: ./.github/actions/setup + - run: rm foundry.toml + - uses: crytic/slither-action@v0.2.0 + + codespell: + if: github.repository != 'OpenZeppelin/openzeppelin-contracts-upgradeable' + runs-on: ubuntu-latest + steps: + - uses: actions/checkout@v3 + - name: Run CodeSpell + uses: codespell-project/actions-codespell@v1.0 + with: + check_filenames: true + skip: package-lock.json,*.pdf diff --git a/lib/openzeppelin-contracts/.github/workflows/docs.yml b/lib/openzeppelin-contracts/.github/workflows/docs.yml new file mode 100644 index 0000000..4b54ea6 --- /dev/null +++ b/lib/openzeppelin-contracts/.github/workflows/docs.yml @@ -0,0 +1,19 @@ +name: Build Docs + +on: + push: + branches: [release-v*] + +permissions: + contents: write + +jobs: + build: + runs-on: ubuntu-latest + steps: + - uses: actions/checkout@v3 + - name: Set up environment + uses: ./.github/actions/setup + - run: bash scripts/git-user-config.sh + - run: node scripts/update-docs-branch.js + - run: git push --all origin diff --git a/lib/openzeppelin-contracts/.github/workflows/release-cycle.yml b/lib/openzeppelin-contracts/.github/workflows/release-cycle.yml new file mode 100644 index 0000000..4fe09a4 --- /dev/null +++ b/lib/openzeppelin-contracts/.github/workflows/release-cycle.yml @@ -0,0 +1,177 @@ +name: Release Cycle + +on: + push: + branches: + - release-v* + workflow_dispatch: {} + +concurrency: ${{ github.workflow }}-${{ github.ref }} + +jobs: + state: + name: Check state + permissions: + pull-requests: read + runs-on: ubuntu-latest + steps: + - uses: actions/checkout@v3 + - name: Set up environment + uses: ./.github/actions/setup + - id: state + name: Get state + uses: actions/github-script@v6 + env: + TRIGGERING_ACTOR: ${{ github.triggering_actor }} + with: + result-encoding: string + script: await require('./scripts/release/workflow/state.js')({ github, context, core }) + outputs: + # Job Flags + start: ${{ steps.state.outputs.start }} + changesets: ${{ steps.state.outputs.changesets }} + promote: ${{ steps.state.outputs.promote }} + publish: ${{ steps.state.outputs.publish }} + merge: ${{ steps.state.outputs.merge }} + + # Global variables + is_prerelease: ${{ steps.state.outputs.is_prerelease }} + + start: + needs: state + name: Start new release candidate + permissions: + contents: write + actions: write + if: needs.state.outputs.start == 'true' + runs-on: ubuntu-latest + steps: + - uses: actions/checkout@v3 + - name: Set up environment + uses: ./.github/actions/setup + - run: bash scripts/git-user-config.sh + - id: start + name: Create branch with release candidate + run: bash scripts/release/workflow/start.sh + - name: Re-run workflow + uses: actions/github-script@v6 + env: + REF: ${{ steps.start.outputs.branch }} + with: + script: await require('./scripts/release/workflow/rerun.js')({ github, context }) + + promote: + needs: state + name: Promote to final release + permissions: + contents: write + actions: write + if: needs.state.outputs.promote == 'true' + runs-on: ubuntu-latest + steps: + - uses: actions/checkout@v3 + - name: Set up environment + uses: ./.github/actions/setup + - run: bash scripts/git-user-config.sh + - name: Exit prerelease state + if: needs.state.outputs.is_prerelease == 'true' + run: bash scripts/release/workflow/exit-prerelease.sh + - name: Re-run workflow + uses: actions/github-script@v6 + with: + script: await require('./scripts/release/workflow/rerun.js')({ github, context }) + + changesets: + needs: state + name: Update PR to release + permissions: + contents: write + pull-requests: write + if: needs.state.outputs.changesets == 'true' + runs-on: ubuntu-latest + steps: + - uses: actions/checkout@v3 + with: + fetch-depth: 0 # To get all tags + - name: Set up environment + uses: ./.github/actions/setup + - name: Set release title + uses: actions/github-script@v6 + with: + result-encoding: string + script: await require('./scripts/release/workflow/set-changesets-pr-title.js')({ core }) + - name: Create PR + uses: changesets/action@v1 + env: + GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }} + PRERELEASE: ${{ needs.state.outputs.is_prerelease }} + with: + version: npm run version + title: ${{ env.TITLE }} + commit: ${{ env.TITLE }} + body: | # Wait for support on this https://github.com/changesets/action/pull/250 + This is an automated PR for releasing ${{ github.repository }} + Check [CHANGELOG.md](${{ github.repository }}/CHANGELOG.md) + + publish: + needs: state + name: Publish to npm + environment: npm + permissions: + contents: write + if: needs.state.outputs.publish == 'true' + runs-on: ubuntu-latest + steps: + - uses: actions/checkout@v3 + - name: Set up environment + uses: ./.github/actions/setup + - id: pack + name: Pack + run: bash scripts/release/workflow/pack.sh + env: + PRERELEASE: ${{ needs.state.outputs.is_prerelease }} + - name: Tag + run: npx changeset tag + - name: Publish + run: bash scripts/release/workflow/publish.sh + env: + NPM_TOKEN: ${{ secrets.NPM_TOKEN }} + TARBALL: ${{ steps.pack.outputs.tarball }} + TAG: ${{ steps.pack.outputs.tag }} + - name: Push tags + run: git push --tags + - name: Create Github Release + uses: actions/github-script@v6 + env: + PRERELEASE: ${{ needs.state.outputs.is_prerelease }} + with: + script: await require('./scripts/release/workflow/github-release.js')({ github, context }) + + merge: + needs: state + name: Create PR back to master + permissions: + contents: write + pull-requests: write + if: needs.state.outputs.merge == 'true' + runs-on: ubuntu-latest + steps: + - uses: actions/checkout@v3 + with: + fetch-depth: 0 # All branches + - name: Set up environment + uses: ./.github/actions/setup + - run: bash scripts/git-user-config.sh + - name: Create branch to merge + run: bash scripts/release/workflow/prepare-release-merge.sh + - name: Create PR back to master + uses: actions/github-script@v6 + with: + script: | + await github.rest.pulls.create({ + owner: context.repo.owner, + repo: context.repo.repo, + head: 'merge/${{ github.ref_name }}', + base: 'master', + title: '${{ format('Merge {0} branch', github.ref_name) }}' + }); diff --git a/lib/openzeppelin-contracts/.github/workflows/upgradeable.yml b/lib/openzeppelin-contracts/.github/workflows/upgradeable.yml new file mode 100644 index 0000000..a94f78c --- /dev/null +++ b/lib/openzeppelin-contracts/.github/workflows/upgradeable.yml @@ -0,0 +1,23 @@ +name: Upgradeable Trigger + +on: + push: + branches: + - master + - release-v* + +jobs: + trigger: + runs-on: ubuntu-latest + steps: + - id: app + uses: getsentry/action-github-app-token@v1 + with: + app_id: ${{ secrets.UPGRADEABLE_APP_ID }} + private_key: ${{ secrets.UPGRADEABLE_APP_PK }} + - run: | + curl -X POST \ + https://api.github.com/repos/OpenZeppelin/openzeppelin-contracts-upgradeable/dispatches \ + -H 'Accept: application/vnd.github.v3+json' \ + -H 'Authorization: token ${{ steps.app.outputs.token }}' \ + -d '{ "event_type": "Update", "client_payload": { "ref": "${{ github.ref }}" } }' diff --git a/lib/openzeppelin-contracts/.gitignore b/lib/openzeppelin-contracts/.gitignore new file mode 100644 index 0000000..9350b26 --- /dev/null +++ b/lib/openzeppelin-contracts/.gitignore @@ -0,0 +1,70 @@ +*.swp +*.swo + +# Logs +logs +*.log + +# Runtime data +pids +*.pid +*.seed +allFiredEvents +scTopics + +# Coverage directory used by tools like istanbul +coverage +coverage.json +coverageEnv + +# node-waf configuration +.lock-wscript + +# Dependency directory +node_modules + +# Debug log from npm +npm-debug.log + +# local env variables +.env + +# truffle build directory +build/ + +# macOS +.DS_Store + +# truffle +.node-xmlhttprequest-* + +# IntelliJ IDE +.idea + +# docs artifacts +docs/modules/api + +# only used to package @openzeppelin/contracts +contracts/build/ +contracts/README.md + +# temporary artifact from solidity-coverage +allFiredEvents +.coverage_artifacts +.coverage_cache +.coverage_contracts + +# hardat-exposed +contracts-exposed + +# Hardhat +/cache +/artifacts + +# Foundry +/out + +# Certora +.certora* +.last_confs +certora_* diff --git a/lib/openzeppelin-contracts/.gitmodules b/lib/openzeppelin-contracts/.gitmodules new file mode 100644 index 0000000..aaa229f --- /dev/null +++ b/lib/openzeppelin-contracts/.gitmodules @@ -0,0 +1,6 @@ +[submodule "lib/forge-std"] + path = lib/forge-std + url = https://github.com/foundry-rs/forge-std +[submodule "lib/erc4626-tests"] + path = lib/erc4626-tests + url = https://github.com/a16z/erc4626-tests.git diff --git a/lib/openzeppelin-contracts/.mocharc.js b/lib/openzeppelin-contracts/.mocharc.js new file mode 100644 index 0000000..920662d --- /dev/null +++ b/lib/openzeppelin-contracts/.mocharc.js @@ -0,0 +1,4 @@ +module.exports = { + require: 'hardhat/register', + timeout: 4000, +}; diff --git a/lib/openzeppelin-contracts/.prettierrc b/lib/openzeppelin-contracts/.prettierrc new file mode 100644 index 0000000..e08e242 --- /dev/null +++ b/lib/openzeppelin-contracts/.prettierrc @@ -0,0 +1,14 @@ +{ + "printWidth": 120, + "singleQuote": true, + "trailingComma": "all", + "arrowParens": "avoid", + "overrides": [ + { + "files": "*.sol", + "options": { + "singleQuote": false + } + } + ] +} diff --git a/lib/openzeppelin-contracts/.solcover.js b/lib/openzeppelin-contracts/.solcover.js new file mode 100644 index 0000000..e0dea5e --- /dev/null +++ b/lib/openzeppelin-contracts/.solcover.js @@ -0,0 +1,13 @@ +module.exports = { + norpc: true, + testCommand: 'npm test', + compileCommand: 'npm run compile', + skipFiles: ['mocks'], + providerOptions: { + default_balance_ether: '10000000000000000000000000', + }, + mocha: { + fgrep: '[skip-on-coverage]', + invert: true, + }, +}; diff --git a/lib/openzeppelin-contracts/.solhint.json b/lib/openzeppelin-contracts/.solhint.json new file mode 100644 index 0000000..7729288 --- /dev/null +++ b/lib/openzeppelin-contracts/.solhint.json @@ -0,0 +1,14 @@ +{ + "rules": { + "no-unused-vars": "error", + "const-name-snakecase": "error", + "contract-name-camelcase": "error", + "event-name-camelcase": "error", + "func-name-mixedcase": "error", + "func-param-name-mixedcase": "error", + "modifier-name-mixedcase": "error", + "private-vars-leading-underscore": "error", + "var-name-mixedcase": "error", + "imports-on-top": "error" + } +} diff --git a/lib/openzeppelin-contracts/CHANGELOG.md b/lib/openzeppelin-contracts/CHANGELOG.md new file mode 100644 index 0000000..e60161d --- /dev/null +++ b/lib/openzeppelin-contracts/CHANGELOG.md @@ -0,0 +1,657 @@ +# Changelog + +### Deprecations + +- `ERC20Permit`: Added the file `IERC20Permit.sol` and `ERC20Permit.sol` and deprecated `draft-IERC20Permit.sol` and `draft-ERC20Permit.sol` since [EIP-2612](https://eips.ethereum.org/EIPS/eip-2612) is no longer a Draft. Developers are encouraged to update their imports. ([#3793](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/3793)) + +## 4.8.1 (2023-01-12) + +- `ERC4626`: Use staticcall instead of call when fetching underlying ERC-20 decimals. ([#3943](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/3943)) + +## 4.8.0 (2022-11-08) + +- `TimelockController`: Added a new `admin` constructor parameter that is assigned the admin role instead of the deployer account. ([#3722](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/3722)) +- `Initializable`: add internal functions `_getInitializedVersion` and `_isInitializing` ([#3598](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/3598)) +- `ERC165Checker`: add `supportsERC165InterfaceUnchecked` for consulting individual interfaces without the full ERC165 protocol. ([#3339](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/3339)) +- `Address`: optimize `functionCall` by calling `functionCallWithValue` directly. ([#3468](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/3468)) +- `Address`: optimize `functionCall` functions by checking contract size only if there is no returned data. ([#3469](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/3469)) +- `Governor`: make the `relay` function payable, and add support for EOA payments. ([#3730](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/3730)) +- `GovernorCompatibilityBravo`: remove unused `using` statements. ([#3506](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/3506)) +- `ERC20`: optimize `_transfer`, `_mint` and `_burn` by using `unchecked` arithmetic when possible. ([#3513](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/3513)) +- `ERC20Votes`, `ERC721Votes`: optimize `getPastVotes` for looking up recent checkpoints. ([#3673](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/3673)) +- `ERC20FlashMint`: add an internal `_flashFee` function for overriding. ([#3551](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/3551)) +- `ERC4626`: use the same `decimals()` as the underlying asset by default (if available). ([#3639](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/3639)) +- `ERC4626`: add internal `_initialConvertToShares` and `_initialConvertToAssets` functions to customize empty vaults behavior. ([#3639](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/3639)) +- `ERC721`: optimize transfers by making approval clearing implicit instead of emitting an event. ([#3481](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/3481)) +- `ERC721`: optimize burn by making approval clearing implicit instead of emitting an event. ([#3538](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/3538)) +- `ERC721`: Fix balance accounting when a custom `_beforeTokenTransfer` hook results in a transfer of the token under consideration. ([#3611](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/3611)) +- `ERC721`: use unchecked arithmetic for balance updates. ([#3524](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/3524)) +- `ERC721Consecutive`: Implementation of EIP-2309 that allows batch minting of ERC721 tokens during construction. ([#3311](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/3311)) +- `ReentrancyGuard`: Reduce code size impact of the modifier by using internal functions. ([#3515](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/3515)) +- `SafeCast`: optimize downcasting of signed integers. ([#3565](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/3565)) +- `ECDSA`: Remove redundant check on the `v` value. ([#3591](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/3591)) +- `VestingWallet`: add `releasable` getters. ([#3580](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/3580)) +- `VestingWallet`: remove unused library `Math.sol`. ([#3605](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/3605)) +- `VestingWallet`: make constructor payable. ([#3665](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/3665)) +- `Create2`: optimize address computation by using assembly instead of `abi.encodePacked`. ([#3600](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/3600)) +- `Clones`: optimized the assembly to use only the scratch space during deployments, and optimized `predictDeterministicAddress` to use fewer operations. ([#3640](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/3640)) +- `Checkpoints`: Use procedural generation to support multiple key/value lengths. ([#3589](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/3589)) +- `Checkpoints`: Add new lookup mechanisms. ([#3589](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/3589)) +- `Arrays`: Add `unsafeAccess` functions that allow reading and writing to an element in a storage array bypassing Solidity's "out-of-bounds" check. ([#3589](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/3589)) +- `Strings`: optimize `toString`. ([#3573](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/3573)) +- `Ownable2Step`: extension of `Ownable` that makes the ownership transfers a two step process. ([#3620](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/3620)) +- `Math` and `SignedMath`: optimize function `max` by using `>` instead of `>=`. ([#3679](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/3679)) +- `Math`: Add `log2`, `log10` and `log256`. ([#3670](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/3670)) +- Arbitrum: Update the vendored arbitrum contracts to match the nitro upgrade. ([#3692](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/3692)) + +### Breaking changes + +- `ERC721`: In order to add support for batch minting via `ERC721Consecutive` it was necessary to make a minor breaking change in the internal interface of `ERC721`. Namely, the hooks `_beforeTokenTransfer` and `_afterTokenTransfer` have one additional argument that may need to be added to overrides: + +```diff + function _beforeTokenTransfer( + address from, + address to, + uint256 tokenId, ++ uint256 batchSize + ) internal virtual override +``` + +- `ERC4626`: Conversion from shares to assets (and vice-versa) in an empty vault used to consider the possible mismatch between the underlying asset's and the vault's decimals. This initial conversion rate is now set to 1-to-1 irrespective of decimals, which are meant for usability purposes only. The vault now uses the assets decimals by default, so off-chain the numbers should appear the same. Developers overriding the vault decimals to a value that does not match the underlying asset may want to override the `_initialConvertToShares` and `_initialConvertToAssets` to replicate the previous behavior. + +- `TimelockController`: During deployment, the TimelockController used to grant the `TIMELOCK_ADMIN_ROLE` to the deployer and to the timelock itself. The deployer was then expected to renounce this role once configuration of the timelock is over. Failing to renounce that role allows the deployer to change the timelock permissions (but not to bypass the delay for any time-locked actions). The role is no longer given to the deployer by default. A new parameter `admin` can be set to a non-zero address to grant the admin role during construction (to the deployer or any other address). Just like previously, this admin role should be renounced after configuration. If this param is given `address(0)`, the role is not allocated and doesn't need to be revoked. In any case, the timelock itself continues to have this role. + +### Deprecations + +- `EIP712`: Added the file `EIP712.sol` and deprecated `draft-EIP712.sol` since the EIP is no longer a Draft. Developers are encouraged to update their imports. ([#3621](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/3621)) + +```diff +-import "@openzeppelin/contracts/utils/cryptography/draft-EIP712.sol"; ++import "@openzeppelin/contracts/utils/cryptography/EIP712.sol"; +``` + +- `ERC721Votes`: Added the file `ERC721Votes.sol` and deprecated `draft-ERC721Votes.sol` since it no longer depends on a Draft EIP (EIP-712). Developers are encouraged to update their imports. ([#3699](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/3699)) + +```diff +-import "@openzeppelin/contracts/token/ERC721/extensions/draft-ERC721Votes.sol"; ++import "@openzeppelin/contracts/token/ERC721/extensions/ERC721Votes.sol"; +``` + +### ERC-721 Compatibility Note + +ERC-721 integrators that interpret contract state from events should make sure that they implement the clearing of approval that is implicit in every transfer according to the EIP. Previous versions of OpenZeppelin Contracts emitted an explicit `Approval` event even though it was not required by the specification, and this is no longer the case. + +With the new `ERC721Consecutive` extension, the internal workings of `ERC721` are slightly changed. Custom extensions to ERC721 should be reviewed to ensure they remain correct. The internal functions that should be considered are `_ownerOf` (new), `_beforeTokenTransfer`, and `_afterTokenTransfer`. + +### ERC-4626 Upgrade Note + +Existing `ERC4626` contracts that are upgraded to 4.8 must initialize a new variable that holds the vault token decimals. The recommended way to do this is to use a [reinitializer]: + +[reinitializer]: https://docs.openzeppelin.com/contracts/4.x/api/proxy#Initializable-reinitializer-uint8- + +```solidity +function migrateToV48() public reinitializer(2) { + __ERC4626_init(IERC20Upgradeable(asset())); +} +``` + +## 4.7.3 (2022-08-10) + +### Breaking changes + +- `ECDSA`: `recover(bytes32,bytes)` and `tryRecover(bytes32,bytes)` no longer accept compact signatures to prevent malleability. Compact signature support remains available using `recover(bytes32,bytes32,bytes32)` and `tryRecover(bytes32,bytes32,bytes32)`. + +## 4.7.2 (2022-07-25) + +- `LibArbitrumL2`, `CrossChainEnabledArbitrumL2`: Fixed detection of cross-chain calls for EOAs. Previously, calls from EOAs would be classified as cross-chain calls. ([#3578](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/3578)) +- `GovernorVotesQuorumFraction`: Fixed quorum updates so they do not affect past proposals that failed due to lack of quorum. ([#3561](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/3561)) +- `ERC165Checker`: Added protection against large returndata. ([#3587](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/3587)) + +## 4.7.1 (2022-07-18) + +- `SignatureChecker`: Fix an issue that causes `isValidSignatureNow` to revert when the target contract returns ill-encoded data. ([#3552](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/3552)) +- `ERC165Checker`: Fix an issue that causes `supportsInterface` to revert when the target contract returns ill-encoded data. ([#3552](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/3552)) + +## 4.7.0 (2022-06-29) + +- `TimelockController`: Migrate `_call` to `_execute` and allow inheritance and overriding similar to `Governor`. ([#3317](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/3317)) +- `CrossChainEnabledPolygonChild`: replace the `require` statement with the custom error `NotCrossChainCall`. ([#3380](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/3380)) +- `ERC20FlashMint`: Add customizable flash fee receiver. ([#3327](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/3327)) +- `ERC4626`: add an extension of `ERC20` that implements the ERC4626 Tokenized Vault Standard. ([#3171](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/3171)) +- `SafeERC20`: add `safePermit` as mitigation against phantom permit functions. ([#3280](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/3280)) +- `Math`: add a `mulDiv` function that can round the result either up or down. ([#3171](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/3171)) +- `Math`: Add a `sqrt` function to compute square roots of integers, rounding either up or down. ([#3242](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/3242)) +- `Strings`: add a new overloaded function `toHexString` that converts an `address` with fixed length of 20 bytes to its not checksummed ASCII `string` hexadecimal representation. ([#3403](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/3403)) +- `EnumerableMap`: add new `UintToUintMap` map type. ([#3338](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/3338)) +- `EnumerableMap`: add new `Bytes32ToUintMap` map type. ([#3416](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/3416)) +- `SafeCast`: add support for many more types, using procedural code generation. ([#3245](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/3245)) +- `MerkleProof`: add `multiProofVerify` to prove multiple values are part of a Merkle tree. ([#3276](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/3276)) +- `MerkleProof`: add calldata versions of the functions to avoid copying input arrays to memory and save gas. ([#3200](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/3200)) +- `ERC721`, `ERC1155`: simplified revert reasons. ([#3254](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/3254), ([#3438](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/3438))) +- `ERC721`: removed redundant require statement. ([#3434](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/3434)) +- `PaymentSplitter`: add `releasable` getters. ([#3350](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/3350)) +- `Initializable`: refactored implementation of modifiers for easier understanding. ([#3450](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/3450)) +- `Proxies`: remove runtime check of ERC1967 storage slots. ([#3455](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/3455)) + +### Breaking changes + +- `Initializable`: functions decorated with the modifier `reinitializer(1)` may no longer invoke each other. + +## 4.6.0 (2022-04-26) + +- `crosschain`: Add a new set of contracts for cross-chain applications. `CrossChainEnabled` is a base contract with instantiations for several chains and bridges, and `AccessControlCrossChain` is an extension of access control that allows cross-chain operation. ([#3183](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/3183)) +- `AccessControl`: add a virtual `_checkRole(bytes32)` function that can be overridden to alter the `onlyRole` modifier behavior. ([#3137](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/3137)) +- `EnumerableMap`: add new `AddressToUintMap` map type. ([#3150](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/3150)) +- `EnumerableMap`: add new `Bytes32ToBytes32Map` map type. ([#3192](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/3192)) +- `ERC20FlashMint`: support infinite allowance when paying back a flash loan. ([#3226](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/3226)) +- `ERC20Wrapper`: the `decimals()` function now tries to fetch the value from the underlying token instance. If that calls revert, then the default value is used. ([#3259](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/3259)) +- `draft-ERC20Permit`: replace `immutable` with `constant` for `_PERMIT_TYPEHASH` since the `keccak256` of string literals is treated specially and the hash is evaluated at compile time. ([#3196](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/3196)) +- `ERC1155`: Add a `_afterTokenTransfer` hook for improved extensibility. ([#3166](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/3166)) +- `ERC1155URIStorage`: add a new extension that implements a `_setURI` behavior similar to ERC721's `_setTokenURI`. ([#3210](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/3210)) +- `DoubleEndedQueue`: a new data structure that supports efficient push and pop to both front and back, useful for FIFO and LIFO queues. ([#3153](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/3153)) +- `Governor`: improved security of `onlyGovernance` modifier when using an external executor contract (e.g. a timelock) that can operate without necessarily going through the governance protocol. ([#3147](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/3147)) +- `Governor`: Add a way to parameterize votes. This can be used to implement voting systems such as fractionalized voting, ERC721 based voting, or any number of other systems. The `params` argument added to `_countVote` method, and included in the newly added `_getVotes` method, can be used by counting and voting modules respectively for such purposes. ([#3043](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/3043)) +- `Governor`: rewording of revert reason for consistency. ([#3275](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/3275)) +- `Governor`: fix an inconsistency in data locations that could lead to invalid bytecode being produced. ([#3295](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/3295)) +- `Governor`: Implement `IERC721Receiver` and `IERC1155Receiver` to improve token custody by governors. ([#3230](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/3230)) +- `TimelockController`: Implement `IERC721Receiver` and `IERC1155Receiver` to improve token custody by timelocks. ([#3230](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/3230)) +- `TimelockController`: Add a separate canceller role for the ability to cancel. ([#3165](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/3165)) +- `Initializable`: add a reinitializer modifier that enables the initialization of new modules, added to already initialized contracts through upgradeability. ([#3232](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/3232)) +- `Initializable`: add an Initialized event that tracks initialized version numbers. ([#3294](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/3294)) +- `ERC2981`: make `royaltyInfo` public to allow super call in overrides. ([#3305](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/3305)) + +### Upgradeability notice + +- `TimelockController`: **(Action needed)** The upgrade from <4.6 to >=4.6 introduces a new `CANCELLER_ROLE` that requires set up to be assignable. After the upgrade, only addresses with this role will have the ability to cancel. Proposers will no longer be able to cancel. Assigning cancellers can be done by an admin (including the timelock itself) once the role admin is set up. To do this, we recommend upgrading to the `TimelockControllerWith46MigrationUpgradeable` contract and then calling the `migrateTo46` function. + +### Breaking changes + +- `Governor`: Adds internal virtual `_getVotes` method that must be implemented; this is a breaking change for existing concrete extensions to `Governor`. To fix this on an existing voting module extension, rename `getVotes` to `_getVotes` and add a `bytes memory` argument. ([#3043](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/3043)) +- `Governor`: Adds `params` parameter to internal virtual `_countVote` method; this is a breaking change for existing concrete extensions to `Governor`. To fix this on an existing counting module extension, add a `bytes memory` argument to `_countVote`. ([#3043](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/3043)) +- `Governor`: Does not emit `VoteCast` event when params data is non-empty; instead emits `VoteCastWithParams` event. To fix this on an integration that consumes the `VoteCast` event, also fetch/monitor `VoteCastWithParams` events. ([#3043](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/3043)) +- `Votes`: The internal virtual function `_getVotingUnits` was made `view` (which was accidentally missing). Any overrides should now be updated so they are `view` as well. + +## 4.5.0 (2022-02-09) + +- `ERC2981`: add implementation of the royalty standard, and the respective extensions for `ERC721` and `ERC1155`. ([#3012](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/3012)) +- `GovernorTimelockControl`: improve the `state()` function to have it reflect cases where a proposal has been canceled directly on the timelock. ([#2977](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/2977)) +- Preset contracts are now deprecated in favor of [Contracts Wizard](https://wizard.openzeppelin.com). ([#2986](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/2986)) +- `Governor`: add a relay function to help recover assets sent to a governor that is not its own executor (e.g. when using a timelock). ([#2926](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/2926)) +- `GovernorPreventLateQuorum`: add new module to ensure a minimum voting duration is available after the quorum is reached. ([#2973](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/2973)) +- `ERC721`: improved revert reason when transferring from wrong owner. ([#2975](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/2975)) +- `Votes`: Added a base contract for vote tracking with delegation. ([#2944](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/2944)) +- `ERC721Votes`: Added an extension of ERC721 enabled with vote tracking and delegation. ([#2944](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/2944)) +- `ERC2771Context`: use immutable storage to store the forwarder address, no longer an issue since Solidity >=0.8.8 allows reading immutable variables in the constructor. ([#2917](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/2917)) +- `Base64`: add a library to parse bytes into base64 strings using `encode(bytes memory)` function, and provide examples to show how to use to build URL-safe `tokenURIs`. ([#2884](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/2884)) +- `ERC20`: reduce allowance before triggering transfer. ([#3056](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/3056)) +- `ERC20`: do not update allowance on `transferFrom` when allowance is `type(uint256).max`. ([#3085](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/3085)) +- `ERC20`: add a `_spendAllowance` internal function. ([#3170](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/3170)) +- `ERC20Burnable`: do not update allowance on `burnFrom` when allowance is `type(uint256).max`. ([#3170](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/3170)) +- `ERC777`: do not update allowance on `transferFrom` when allowance is `type(uint256).max`. ([#3085](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/3085)) +- `ERC777`: add a `_spendAllowance` internal function. ([#3170](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/3170)) +- `SignedMath`: a new signed version of the Math library with `max`, `min`, and `average`. ([#2686](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/2686)) +- `SignedMath`: add an `abs(int256)` method that returns the unsigned absolute value of a signed value. ([#2984](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/2984)) +- `ERC1967Upgrade`: Refactor the secure upgrade to use `ERC1822` instead of the previous rollback mechanism. This reduces code complexity and attack surface with similar security guarantees. ([#3021](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/3021)) +- `UUPSUpgradeable`: Add `ERC1822` compliance to support the updated secure upgrade mechanism. ([#3021](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/3021)) +- Some more functions have been made virtual to customize them via overrides. In many cases this will not imply that other functions in the contract will automatically adapt to the overridden definitions. People who wish to override should consult the source code to understand the impact and if they need to override any additional functions to achieve the desired behavior. + +### Breaking changes + +- `ERC1967Upgrade`: The function `_upgradeToAndCallSecure` was renamed to `_upgradeToAndCallUUPS`, along with the change in security mechanism described above. +- `Address`: The Solidity pragma is increased from `^0.8.0` to `^0.8.1`. This is required by the `account.code.length` syntax that replaces inline assembly. This may require users to bump their compiler version from `0.8.0` to `0.8.1` or later. Note that other parts of the code already include stricter requirements. + +## 4.4.2 (2022-01-11) + +### Bugfixes + +- `GovernorCompatibilityBravo`: Fix error in the encoding of calldata for proposals submitted through the compatibility interface with explicit signatures. ([#3100](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/3100)) + +## 4.4.1 (2021-12-14) + +- `Initializable`: change the existing `initializer` modifier and add a new `onlyInitializing` modifier to prevent reentrancy risk. ([#3006](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/3006)) + +### Breaking change + +It is no longer possible to call an `initializer`-protected function from within another `initializer` function outside the context of a constructor. Projects using OpenZeppelin upgradeable proxies should continue to work as is, since in the common case the initializer is invoked in the constructor directly. If this is not the case for you, the suggested change is to use the new `onlyInitializing` modifier in the following way: + +```diff + contract A { +- function initialize() public initializer { ... } ++ function initialize() internal onlyInitializing { ... } + } + contract B is A { + function initialize() public initializer { + A.initialize(); + } + } +``` + +## 4.4.0 (2021-11-25) + +- `Ownable`: add an internal `_transferOwnership(address)`. ([#2568](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/2568)) +- `AccessControl`: add internal `_grantRole(bytes32,address)` and `_revokeRole(bytes32,address)`. ([#2568](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/2568)) +- `AccessControl`: mark `_setupRole(bytes32,address)` as deprecated in favor of `_grantRole(bytes32,address)`. ([#2568](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/2568)) +- `AccessControlEnumerable`: hook into `_grantRole(bytes32,address)` and `_revokeRole(bytes32,address)`. ([#2946](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/2946)) +- `EIP712`: cache `address(this)` to immutable storage to avoid potential issues if a vanilla contract is used in a delegatecall context. ([#2852](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/2852)) +- Add internal `_setApprovalForAll` to `ERC721` and `ERC1155`. ([#2834](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/2834)) +- `Governor`: shift vote start and end by one block to better match Compound's GovernorBravo and prevent voting at the Governor level if the voting snapshot is not ready. ([#2892](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/2892)) +- `GovernorCompatibilityBravo`: consider quorum an inclusive rather than exclusive minimum to match Compound's GovernorBravo. ([#2974](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/2974)) +- `GovernorSettings`: a new governor module that manages voting settings updatable through governance actions. ([#2904](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/2904)) +- `PaymentSplitter`: now supports ERC20 assets in addition to Ether. ([#2858](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/2858)) +- `ECDSA`: add a variant of `toEthSignedMessageHash` for arbitrary length message hashing. ([#2865](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/2865)) +- `MerkleProof`: add a `processProof` function that returns the rebuilt root hash given a leaf and a proof. ([#2841](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/2841)) +- `VestingWallet`: new contract that handles the vesting of Ether and ERC20 tokens following a customizable vesting schedule. ([#2748](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/2748)) +- `Governor`: enable receiving Ether when a Timelock contract is not used. ([#2849](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/2849)) +- `GovernorTimelockCompound`: fix ability to use Ether stored in the Timelock contract. ([#2849](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/2849)) + +## 4.3.3 (2021-11-08) + +- `ERC1155Supply`: Handle `totalSupply` changes by hooking into `_beforeTokenTransfer` to ensure consistency of balances and supply during `IERC1155Receiver.onERC1155Received` calls. + +## 4.3.2 (2021-09-14) + +- `UUPSUpgradeable`: Add modifiers to prevent `upgradeTo` and `upgradeToAndCall` being executed on any contract that is not the active ERC1967 proxy. This prevents these functions being called on implementation contracts or minimal ERC1167 clones, in particular. + +## 4.3.1 (2021-08-26) + +- `TimelockController`: Add additional isOperationReady check. + +## 4.3.0 (2021-08-17) + +- `ERC2771Context`: use private variable from storage to store the forwarder address. Fixes issues where `_msgSender()` was not callable from constructors. ([#2754](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/2754)) +- `EnumerableSet`: add `values()` functions that returns an array containing all values in a single call. ([#2768](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/2768)) +- `Governor`: added a modular system of `Governor` contracts based on `GovernorAlpha` and `GovernorBravo`. ([#2672](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/2672)) +- Add an `interfaces` folder containing solidity interfaces to final ERCs. ([#2517](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/2517)) +- `ECDSA`: add `tryRecover` functions that will not throw if the signature is invalid, and will return an error flag instead. ([#2661](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/2661)) +- `SignatureChecker`: Reduce gas usage of the `isValidSignatureNow` function for the "signature by EOA" case. ([#2661](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/2661)) + +## 4.2.0 (2021-06-30) + +- `ERC20Votes`: add a new extension of the `ERC20` token with support for voting snapshots and delegation. ([#2632](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/2632)) +- `ERC20VotesComp`: Variant of `ERC20Votes` that is compatible with Compound's `Comp` token interface but restricts supply to `uint96`. ([#2706](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/2706)) +- `ERC20Wrapper`: add a new extension of the `ERC20` token which wraps an underlying token. Deposit and withdraw guarantee that the total supply is backed by a corresponding amount of underlying token. ([#2633](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/2633)) +- Enumerables: Improve gas cost of removal in `EnumerableSet` and `EnumerableMap`. +- Enumerables: Improve gas cost of lookup in `EnumerableSet` and `EnumerableMap`. +- `Counter`: add a reset method. ([#2678](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/2678)) +- Tokens: Wrap definitely safe subtractions in `unchecked` blocks. +- `Math`: Add a `ceilDiv` method for performing ceiling division. +- `ERC1155Supply`: add a new `ERC1155` extension that keeps track of the totalSupply of each tokenId. ([#2593](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/2593)) +- `BitMaps`: add a new `BitMaps` library that provides a storage efficient datastructure for `uint256` to `bool` mapping with contiguous keys. ([#2710](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/2710)) + +### Breaking Changes + +- `ERC20FlashMint` is no longer a Draft ERC. ([#2673](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/2673))) + +**How to update:** Change your import paths by removing the `draft-` prefix from `@openzeppelin/contracts/token/ERC20/extensions/draft-ERC20FlashMint.sol`. + +> See [Releases and Stability: Drafts](https://docs.openzeppelin.com/contracts/4.x/releases-stability#drafts). + +## 4.1.0 (2021-04-29) + +- `IERC20Metadata`: add a new extended interface that includes the optional `name()`, `symbol()` and `decimals()` functions. ([#2561](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/2561)) +- `ERC777`: make reception acquirement optional in `_mint`. ([#2552](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/2552)) +- `ERC20Permit`: add a `_useNonce` to enable further usage of ERC712 signatures. ([#2565](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/2565)) +- `ERC20FlashMint`: add an implementation of the ERC3156 extension for flash-minting ERC20 tokens. ([#2543](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/2543)) +- `SignatureChecker`: add a signature verification library that supports both EOA and ERC1271 compliant contracts as signers. ([#2532](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/2532)) +- `Multicall`: add abstract contract with `multicall(bytes[] calldata data)` function to bundle multiple calls together ([#2608](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/2608)) +- `ECDSA`: add support for ERC2098 short-signatures. ([#2582](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/2582)) +- `AccessControl`: add an `onlyRole` modifier to restrict specific function to callers bearing a specific role. ([#2609](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/2609)) +- `StorageSlot`: add a library for reading and writing primitive types to specific storage slots. ([#2542](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/2542)) +- UUPS Proxies: add `UUPSUpgradeable` to implement the UUPS proxy pattern together with `EIP1967Proxy`. ([#2542](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/2542)) + +### Breaking changes + +This release includes two small breaking changes in `TimelockController`. + +1. The `onlyRole` modifier in this contract was designed to let anyone through if the role was granted to `address(0)`, + allowing the possibility to to make a role "open", which can be used for `EXECUTOR_ROLE`. This modifier is now + replaced by `AccessControl.onlyRole`, which does not have this ability. The previous behavior was moved to the + modifier `TimelockController.onlyRoleOrOpenRole`. +2. It was possible to make `PROPOSER_ROLE` an open role (as described in the previous item) if it was granted to + `address(0)`. This would affect the `schedule`, `scheduleBatch`, and `cancel` operations in `TimelockController`. + This ability was removed as it does not make sense to open up the `PROPOSER_ROLE` in the same way that it does for + `EXECUTOR_ROLE`. + +## 4.0.0 (2021-03-23) + +- Now targeting the 0.8.x line of Solidity compilers. For 0.6.x (resp 0.7.x) support, use version 3.4.0 (resp 3.4.0-solc-0.7) of OpenZeppelin. +- `Context`: making `_msgData` return `bytes calldata` instead of `bytes memory` ([#2492](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/2492)) +- `ERC20`: removed the `_setDecimals` function and the storage slot associated to decimals. ([#2502](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/2502)) +- `Strings`: addition of a `toHexString` function. ([#2504](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/2504)) +- `EnumerableMap`: change implementation to optimize for `key → value` lookups instead of enumeration. ([#2518](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/2518)) +- `GSN`: deprecate GSNv1 support in favor of upcoming support for GSNv2. ([#2521](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/2521)) +- `ERC165`: remove uses of storage in the base ERC165 implementation. ERC165 based contracts now use storage-less virtual functions. Old behavior remains available in the `ERC165Storage` extension. ([#2505](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/2505)) +- `Initializable`: make initializer check stricter during construction. ([#2531](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/2531)) +- `ERC721`: remove enumerability of tokens from the base implementation. This feature is now provided separately through the `ERC721Enumerable` extension. ([#2511](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/2511)) +- `AccessControl`: removed enumerability by default for a more lightweight contract. It is now opt-in through `AccessControlEnumerable`. ([#2512](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/2512)) +- Meta Transactions: add `ERC2771Context` and a `MinimalForwarder` for meta-transactions. ([#2508](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/2508)) +- Overall reorganization of the contract folder to improve clarity and discoverability. ([#2503](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/2503)) +- `ERC20Capped`: optimize gas usage by enforcing the check directly in `_mint`. ([#2524](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/2524)) +- Rename `UpgradeableProxy` to `ERC1967Proxy`. ([#2547](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/2547)) +- `ERC777`: optimize the gas costs of the constructor. ([#2551](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/2551)) +- `ERC721URIStorage`: add a new extension that implements the `_setTokenURI` behavior as it was available in 3.4.0. ([#2555](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/2555)) +- `AccessControl`: added ERC165 interface detection. ([#2562](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/2562)) +- `ERC1155`: make `uri` public so overloading function can call it using super. ([#2576](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/2576)) + +### Bug fixes for beta releases + +- `AccessControlEnumerable`: Fixed `renounceRole` not updating enumerable set of addresses for a role. ([#2572](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/2572)) + +### How to upgrade from 3.x + +Since this version has moved a few contracts to different directories, users upgrading from a previous version will need to adjust their import statements. To make this easier, the package includes a script that will migrate import statements automatically. After upgrading to the latest version of the package, run: + +``` +npx openzeppelin-contracts-migrate-imports +``` + +Make sure you're using git or another version control system to be able to recover from any potential error in our script. + +### How to upgrade from 4.0-beta.x + +Some further changes have been done between the different beta iterations. Transitions made during this period are configured in the `migrate-imports` script. Consequently, you can upgrade from any previous 4.0-beta.x version using the same script as described in the _How to upgrade from 3.x_ section. + +## 3.4.2 (2021-07-24) + +- `TimelockController`: Add additional isOperationReady check. + +## 3.4.1 (2021-03-03) + +- `ERC721`: made `_approve` an internal function (was private). + +## 3.4.0 (2021-02-02) + +- `BeaconProxy`: added new kind of proxy that allows simultaneous atomic upgrades. ([#2411](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/2411)) +- `EIP712`: added helpers to verify EIP712 typed data signatures on chain. ([#2418](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/2418)) +- `ERC20Permit`: added an implementation of the ERC20 permit extension for gasless token approvals. ([#2237](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/2237)) +- Presets: added token presets with preminted fixed supply `ERC20PresetFixedSupply` and `ERC777PresetFixedSupply`. ([#2399](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/2399)) +- `Address`: added `functionDelegateCall`, similar to the existing `functionCall`. ([#2333](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/2333)) +- `Clones`: added a library for deploying EIP 1167 minimal proxies. ([#2449](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/2449)) +- `Context`: moved from `contracts/GSN` to `contracts/utils`. ([#2453](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/2453)) +- `PaymentSplitter`: replace usage of `.transfer()` with `Address.sendValue` for improved compatibility with smart wallets. ([#2455](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/2455)) +- `UpgradeableProxy`: bubble revert reasons from initialization calls. ([#2454](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/2454)) +- `SafeMath`: fix a memory allocation issue by adding new `SafeMath.tryOp(uint,uint)→(bool,uint)` functions. `SafeMath.op(uint,uint,string)→uint` are now deprecated. ([#2462](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/2462)) +- `EnumerableMap`: fix a memory allocation issue by adding new `EnumerableMap.tryGet(uint)→(bool,address)` functions. `EnumerableMap.get(uint)→string` is now deprecated. ([#2462](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/2462)) +- `ERC165Checker`: added batch `getSupportedInterfaces`. ([#2469](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/2469)) +- `RefundEscrow`: `beneficiaryWithdraw` will forward all available gas to the beneficiary. ([#2480](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/2480)) +- Many view and pure functions have been made virtual to customize them via overrides. In many cases this will not imply that other functions in the contract will automatically adapt to the overridden definitions. People who wish to override should consult the source code to understand the impact and if they need to override any additional functions to achieve the desired behavior. + +### Security Fixes + +- `ERC777`: fix potential reentrancy issues for custom extensions to `ERC777`. ([#2483](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/2483)) + +If you're using our implementation of ERC777 from version 3.3.0 or earlier, and you define a custom `_beforeTokenTransfer` function that writes to a storage variable, you may be vulnerable to a reentrancy attack. If you're affected and would like assistance please write to security@openzeppelin.com. [Read more in the pull request.](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/2483) + +## 3.3.0 (2020-11-26) + +- Now supports both Solidity 0.6 and 0.7. Compiling with solc 0.7 will result in warnings. Install the `solc-0.7` tag to compile without warnings. +- `Address`: added `functionStaticCall`, similar to the existing `functionCall`. ([#2333](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/2333)) +- `TimelockController`: added a contract to augment access control schemes with a delay. ([#2354](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/2354)) +- `EnumerableSet`: added `Bytes32Set`, for sets of `bytes32`. ([#2395](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/2395)) + +## 3.2.2-solc-0.7 (2020-10-28) + +- Resolve warnings introduced by Solidity 0.7.4. ([#2396](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/2396)) + +## 3.2.1-solc-0.7 (2020-09-15) + +- `ERC777`: Remove a warning about function state visibility in Solidity 0.7. ([#2327](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/2327)) + +## 3.2.0 (2020-09-10) + +### New features + +- Proxies: added the proxy contracts from OpenZeppelin SDK. ([#2335](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/2335)) + +#### Proxy changes with respect to OpenZeppelin SDK + +Aside from upgrading them from Solidity 0.5 to 0.6, we've changed a few minor things from the proxy contracts as they were found in OpenZeppelin SDK. + +- `UpgradeabilityProxy` was renamed to `UpgradeableProxy`. +- `AdminUpgradeabilityProxy` was renamed to `TransparentUpgradeableProxy`. +- `Proxy._willFallback` was renamed to `Proxy._beforeFallback`. +- `UpgradeabilityProxy._setImplementation` and `AdminUpgradeabilityProxy._setAdmin` were made private. + +### Improvements + +- `Address.isContract`: switched from `extcodehash` to `extcodesize` for less gas usage. ([#2311](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/2311)) + +### Breaking changes + +- `ERC20Snapshot`: switched to using `_beforeTokenTransfer` hook instead of overriding ERC20 operations. ([#2312](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/2312)) + +This small change in the way we implemented `ERC20Snapshot` may affect users who are combining this contract with +other ERC20 flavors, since it no longer overrides `_transfer`, `_mint`, and `_burn`. This can result in having to remove Solidity `override(...)` specifiers in derived contracts for these functions, and to instead have to add it for `_beforeTokenTransfer`. See [Using Hooks](https://docs.openzeppelin.com/contracts/3.x/extending-contracts#using-hooks) in the documentation. + +## 3.1.0 (2020-06-23) + +### New features + +- `SafeCast`: added functions to downcast signed integers (e.g. `toInt32`), improving usability of `SignedSafeMath`. ([#2243](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/2243)) +- `functionCall`: new helpers that replicate Solidity's function call semantics, reducing the need to rely on `call`. ([#2264](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/2264)) +- `ERC1155`: added support for a base implementation, non-standard extensions and a preset contract. ([#2014](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/2014), [#2230](https://github.com/OpenZeppelin/openzeppelin-contracts/issues/2230)) + +### Improvements + +- `ReentrancyGuard`: reduced overhead of using the `nonReentrant` modifier. ([#2171](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/2171)) +- `AccessControl`: added a `RoleAdminChanged` event to `_setAdminRole`. ([#2214](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/2214)) +- Made all `public` functions in the token preset contracts `virtual`. ([#2257](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/2257)) + +### Deprecations + +- `SafeERC20`: deprecated `safeApprove`. ([#2268](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/2268)) + +## 3.0.2 (2020-06-08) + +### Improvements + +- Added SPX license identifier to all contracts. ([#2235](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/2235)) + +## 3.0.1 (2020-04-27) + +### Bugfixes + +- `ERC777`: fixed the `_approve` internal function not validating some of their arguments for non-zero addresses. ([#2213](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/2213)) + +## 3.0.0 (2020-04-20) + +### New features + +- `AccessControl`: new contract for managing permissions in a system, replacement for `Ownable` and `Roles`. ([#2112](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/2112)) +- `SafeCast`: new functions to convert to and from signed and unsigned values: `toUint256` and `toInt256`. ([#2123](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/2123)) +- `EnumerableMap`: a new data structure for key-value pairs (like `mapping`) that can be iterated over. ([#2160](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/2160)) + +### Breaking changes + +- `ERC721`: `burn(owner, tokenId)` was removed, use `burn(tokenId)` instead. ([#2125](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/2125)) +- `ERC721`: `_checkOnERC721Received` was removed. ([#2125](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/2125)) +- `ERC721`: `_transferFrom` and `_safeTransferFrom` were renamed to `_transfer` and `_safeTransfer`. ([#2162](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/2162)) +- `Ownable`: removed `_transferOwnership`. ([#2162](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/2162)) +- `PullPayment`, `Escrow`: `withdrawWithGas` was removed. The old `withdraw` function now forwards all gas. ([#2125](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/2125)) +- `Roles` was removed, use `AccessControl` as a replacement. ([#2112](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/2112)) +- `ECDSA`: when receiving an invalid signature, `recover` now reverts instead of returning the zero address. ([#2114](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/2114)) +- `Create2`: added an `amount` argument to `deploy` for contracts with `payable` constructors. ([#2117](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/2117)) +- `Pausable`: moved to the `utils` directory. ([#2122](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/2122)) +- `Strings`: moved to the `utils` directory. ([#2122](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/2122)) +- `Counters`: moved to the `utils` directory. ([#2122](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/2122)) +- `SignedSafeMath`: moved to the `math` directory. ([#2122](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/2122)) +- `ERC20Snapshot`: moved to the `token/ERC20` directory. `snapshot` was changed into an `internal` function. ([#2122](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/2122)) +- `Ownable`: moved to the `access` directory. ([#2120](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/2120)) +- `Ownable`: removed `isOwner`. ([#2120](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/2120)) +- `Secondary`: removed from the library, use `Ownable` instead. ([#2120](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/2120)) +- `Escrow`, `ConditionalEscrow`, `RefundEscrow`: these now use `Ownable` instead of `Secondary`, their external API changed accordingly. ([#2120](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/2120)) +- `ERC20`: removed `_burnFrom`. ([#2119](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/2119)) +- `Address`: removed `toPayable`, use `payable(address)` instead. ([#2133](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/2133)) +- `ERC777`: `_send`, `_mint` and `_burn` now use the caller as the operator. ([#2134](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/2134)) +- `ERC777`: removed `_callsTokensToSend` and `_callTokensReceived`. ([#2134](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/2134)) +- `EnumerableSet`: renamed `get` to `at`. ([#2151](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/2151)) +- `ERC165Checker`: functions no longer have a leading underscore. ([#2150](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/2150)) +- `ERC721Metadata`, `ERC721Enumerable`: these contracts were removed, and their functionality merged into `ERC721`. ([#2160](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/2160)) +- `ERC721`: added a constructor for `name` and `symbol`. ([#2160](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/2160)) +- `ERC20Detailed`: this contract was removed and its functionality merged into `ERC20`. ([#2161](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/2161)) +- `ERC20`: added a constructor for `name` and `symbol`. `decimals` now defaults to 18. ([#2161](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/2161)) +- `Strings`: renamed `fromUint256` to `toString` ([#2188](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/2188)) + +## 2.5.1 (2020-04-24) + +### Bugfixes + +- `ERC777`: fixed the `_send` and `_approve` internal functions not validating some of their arguments for non-zero addresses. ([#2212](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/2212)) + +## 2.5.0 (2020-02-04) + +### New features + +- `SafeCast.toUintXX`: new library for integer downcasting, which allows for safe operation on smaller types (e.g. `uint32`) when combined with `SafeMath`. ([#1926](https://github.com/OpenZeppelin/openzeppelin-solidity/pull/1926)) +- `ERC721Metadata`: added `baseURI`, which can be used for dramatic gas savings when all token URIs share a prefix (e.g. `http://api.myapp.com/tokens/`). ([#1970](https://github.com/OpenZeppelin/openzeppelin-solidity/pull/1970)) +- `EnumerableSet`: new library for storing enumerable sets of values. Only `AddressSet` is supported in this release. ([#2061](https://github.com/OpenZeppelin/openzeppelin-solidity/pull/2061)) +- `Create2`: simple library to make usage of the `CREATE2` opcode easier. ([#1744](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/1744)) + +### Improvements + +- `ERC777`: `_burn` is now internal, providing more flexibility and making it easier to create tokens that deflate. ([#1908](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/1908)) +- `ReentrancyGuard`: greatly improved gas efficiency by using the net gas metering mechanism introduced in the Istanbul hardfork. ([#1992](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/1992), [#1996](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/1996)) +- `ERC777`: improve extensibility by making `_send` and related functions `internal`. ([#2027](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/2027)) +- `ERC721`: improved revert reason when transferring tokens to a non-recipient contract. ([#2018](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/2018)) + +### Breaking changes + +- `ERC165Checker` now requires a minimum Solidity compiler version of 0.5.10. ([#1829](https://github.com/OpenZeppelin/openzeppelin-solidity/pull/1829)) + +## 2.4.0 (2019-10-29) + +### New features + +- `Address.toPayable`: added a helper to convert between address types without having to resort to low-level casting. ([#1773](https://github.com/OpenZeppelin/openzeppelin-solidity/pull/1773)) +- Facilities to make metatransaction-enabled contracts through the Gas Station Network. ([#1844](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/1844)) +- `Address.sendValue`: added a replacement to Solidity's `transfer`, removing the fixed gas stipend. ([#1962](https://github.com/OpenZeppelin/openzeppelin-solidity/pull/1962)) +- Added replacement for functions that don't forward all gas (which have been deprecated): ([#1976](https://github.com/OpenZeppelin/openzeppelin-solidity/pull/1976)) + - `PullPayment.withdrawPaymentsWithGas(address payable payee)` + - `Escrow.withdrawWithGas(address payable payee)` +- `SafeMath`: added support for custom error messages to `sub`, `div` and `mod` functions. ([#1828](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/1828)) + +### Improvements + +- `Address.isContract`: switched from `extcodesize` to `extcodehash` for less gas usage. ([#1802](https://github.com/OpenZeppelin/openzeppelin-solidity/pull/1802)) +- `ERC20` and `ERC777` updated to throw custom errors on subtraction overflows. ([#1828](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/1828)) + +### Deprecations + +- Deprecated functions that don't forward all gas: ([#1976](https://github.com/OpenZeppelin/openzeppelin-solidity/pull/1976)) + - `PullPayment.withdrawPayments(address payable payee)` + - `Escrow.withdraw(address payable payee)` + +### Breaking changes + +- `Address` now requires a minimum Solidity compiler version of 0.5.5. ([#1802](https://github.com/OpenZeppelin/openzeppelin-solidity/pull/1802)) +- `SignatureBouncer` has been removed from drafts, both to avoid confusions with the GSN and `GSNRecipientSignature` (previously called `GSNBouncerSignature`) and because the API was not very clear. ([#1879](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/1879)) + +### How to upgrade from 2.4.0-beta + +The final 2.4.0 release includes a refactor of the GSN contracts that will be a breaking change for 2.4.0-beta users. + +- The default empty implementations of `_preRelayedCall` and `_postRelayedCall` were removed and must now be explicitly implemented always in custom recipients. If your custom recipient didn't include an implementation, you can provide an empty one. +- `GSNRecipient`, `GSNBouncerBase`, and `GSNContext` were all merged into `GSNRecipient`. +- `GSNBouncerSignature` and `GSNBouncerERC20Fee` were renamed to `GSNRecipientSignature` and `GSNRecipientERC20Fee`. +- It is no longer necessary to inherit from `GSNRecipient` when using `GSNRecipientSignature` and `GSNRecipientERC20Fee`. + +For example, a contract using `GSNBouncerSignature` would have to be changed in the following way. + +```diff +-contract MyDapp is GSNRecipient, GSNBouncerSignature { ++contract MyDapp is GSNRecipientSignature { +``` + +Refer to the table below to adjust your inheritance list. + +| 2.4.0-beta | 2.4.0 | +| ----------------------------------- | ----------------------- | +| `GSNRecipient, GSNBouncerSignature` | `GSNRecipientSignature` | +| `GSNRecipient, GSNBouncerERC20Fee` | `GSNRecipientERC20Fee` | +| `GSNBouncerBase` | `GSNRecipient` | + +## 2.3.0 (2019-05-27) + +### New features + +- `ERC1820`: added support for interacting with the [ERC1820](https://eips.ethereum.org/EIPS/eip-1820) registry contract (`IERC1820Registry`), as well as base contracts that can be registered as implementers there. ([#1677](https://github.com/OpenZeppelin/openzeppelin-solidity/pull/1677)) +- `ERC777`: support for the [ERC777 token](https://eips.ethereum.org/EIPS/eip-777), which has multiple improvements over `ERC20` (but is backwards compatible with it) such as built-in burning, a more straightforward permission system, and optional sender and receiver hooks on transfer (mandatory for contracts!). ([#1684](https://github.com/OpenZeppelin/openzeppelin-solidity/pull/1684)) +- All contracts now have revert reason strings, which give insight into error conditions, and help debug failing transactions. ([#1704](https://github.com/OpenZeppelin/openzeppelin-solidity/pull/1704)) + +### Improvements + +- Reverted the Solidity version bump done in v2.2.0, setting the minimum compiler version to v0.5.0, to prevent unexpected build breakage. Users are encouraged however to stay on top of new compiler releases, which usually include bugfixes. ([#1729](https://github.com/OpenZeppelin/openzeppelin-solidity/pull/1729)) + +### Bugfixes + +- `PostDeliveryCrowdsale`: some validations where skipped when paired with other crowdsale flavors, such as `AllowanceCrowdsale`, or `MintableCrowdsale` and `ERC20Capped`, which could cause buyers to not be able to claim their purchased tokens. ([#1721](https://github.com/OpenZeppelin/openzeppelin-solidity/pull/1721)) +- `ERC20._transfer`: the `from` argument was allowed to be the zero address, so it was possible to internally trigger a transfer of 0 tokens from the zero address. This address is not a valid destinatary of transfers, nor can it give or receive allowance, so this behavior was inconsistent. It now reverts. ([#1752](https://github.com/OpenZeppelin/openzeppelin-solidity/pull/1752)) + +## 2.2.0 (2019-03-14) + +### New features + +- `ERC20Snapshot`: create snapshots on demand of the token balances and total supply, to later retrieve and e.g. calculate dividends at a past time. ([#1617](https://github.com/OpenZeppelin/openzeppelin-solidity/pull/1617)) +- `SafeERC20`: `ERC20` contracts with no return value (i.e. that revert on failure) are now supported. ([#1655](https://github.com/OpenZeppelin/openzeppelin-solidity/pull/1655)) +- `ERC20`: added internal `_approve(address owner, address spender, uint256 value)`, allowing derived contracts to set the allowance of arbitrary accounts. ([#1609](https://github.com/OpenZeppelin/openzeppelin-solidity/pull/1609)) +- `ERC20Metadata`: added internal `_setTokenURI(string memory tokenURI)`. ([#1618](https://github.com/OpenZeppelin/openzeppelin-solidity/pull/1618)) +- `TimedCrowdsale`: added internal `_extendTime(uint256 newClosingTime)` as well as `TimedCrowdsaleExtended(uint256 prevClosingTime, uint256 newClosingTime)` event allowing to extend the crowdsale, as long as it hasn't already closed. + +### Improvements + +- Upgraded the minimum compiler version to v0.5.2: this removes many Solidity warnings that were false positives. ([#1606](https://github.com/OpenZeppelin/openzeppelin-solidity/pull/1606)) +- `ECDSA`: `recover` no longer accepts malleable signatures (those using upper-range values for `s`, or 0/1 for `v`). ([#1622](https://github.com/OpenZeppelin/openzeppelin-solidity/pull/1622)) +- `ERC721`'s transfers are now more gas efficient due to removal of unnecessary `SafeMath` calls. ([#1610](https://github.com/OpenZeppelin/openzeppelin-solidity/pull/1610)) +- Fixed variable shadowing issues. ([#1606](https://github.com/OpenZeppelin/openzeppelin-solidity/pull/1606)) + +### Bugfixes + +- (minor) `SafeERC20`: `safeApprove` wasn't properly checking for a zero allowance when attempting to set a non-zero allowance. ([#1647](https://github.com/OpenZeppelin/openzeppelin-solidity/pull/1647)) + +### Breaking changes in drafts + +- `TokenMetadata` has been renamed to `ERC20Metadata`. ([#1618](https://github.com/OpenZeppelin/openzeppelin-solidity/pull/1618)) +- The library `Counter` has been renamed to `Counters` and its API has been improved. See an example in `ERC721`, lines [17](https://github.com/OpenZeppelin/openzeppelin-solidity/blob/3cb4a00fce1da76196ac0ac3a0ae9702b99642b5/contracts/token/ERC721/ERC721.sol#L17) and [204](https://github.com/OpenZeppelin/openzeppelin-solidity/blob/3cb4a00fce1da76196ac0ac3a0ae9702b99642b5/contracts/token/ERC721/ERC721.sol#L204). ([#1610](https://github.com/OpenZeppelin/openzeppelin-solidity/pull/1610)) + +## 2.1.3 (2019-02-26) + +- Backported `SafeERC20.safeApprove` bugfix. ([#1647](https://github.com/OpenZeppelin/openzeppelin-solidity/pull/1647)) + +## 2.1.2 (2019-01-17) + +- Removed most of the test suite from the npm package, except `PublicRole.behavior.js`, which may be useful to users testing their own `Roles`. + +## 2.1.1 (2019-01-04) + +- Version bump to avoid conflict in the npm registry. + +## 2.1.0 (2019-01-04) + +### New features + +- Now targeting the 0.5.x line of Solidity compilers. For 0.4.24 support, use version 2.0 of OpenZeppelin. +- `WhitelistCrowdsale`: a crowdsale where only whitelisted accounts (`WhitelistedRole`) can purchase tokens. Adding or removing accounts from the whitelist is done by whitelist admins (`WhitelistAdminRole`). Similar to the pre-2.0 `WhitelistedCrowdsale`. ([#1525](https://github.com/OpenZeppelin/openzeppelin-solidity/pull/1525), [#1589](https://github.com/OpenZeppelin/openzeppelin-solidity/pull/1589)) +- `RefundablePostDeliveryCrowdsale`: replacement for `RefundableCrowdsale` (deprecated, see below) where tokens are only granted once the crowdsale ends (if it meets its goal). ([#1543](https://github.com/OpenZeppelin/openzeppelin-solidity/pull/1543)) +- `PausableCrowdsale`: allows for pausers (`PauserRole`) to pause token purchases. Other crowdsale operations (e.g. withdrawals and refunds, if applicable) are not affected. ([#832](https://github.com/OpenZeppelin/openzeppelin-solidity/pull/832)) +- `ERC20`: `transferFrom` and `_burnFrom ` now emit `Approval` events, to represent the token's state comprehensively through events. ([#1524](https://github.com/OpenZeppelin/openzeppelin-solidity/pull/1524)) +- `ERC721`: added `_burn(uint256 tokenId)`, replacing the similar deprecated function (see below). ([#1550](https://github.com/OpenZeppelin/openzeppelin-solidity/pull/1550)) +- `ERC721`: added `_tokensOfOwner(address owner)`, allowing to internally retrieve the array of an account's owned tokens. ([#1522](https://github.com/OpenZeppelin/openzeppelin-solidity/pull/1522)) +- Crowdsales: all constructors are now `public`, meaning it is not necessary to extend these contracts in order to deploy them. The exception is `FinalizableCrowdsale`, since it is meaningless unless extended. ([#1564](https://github.com/OpenZeppelin/openzeppelin-solidity/pull/1564)) +- `SignedSafeMath`: added overflow-safe operations for signed integers (`int256`). ([#1559](https://github.com/OpenZeppelin/openzeppelin-solidity/pull/1559), [#1588](https://github.com/OpenZeppelin/openzeppelin-solidity/pull/1588)) + +### Improvements + +- The compiler version required by `Array` was behind the rest of the library so it was updated to `v0.4.24`. ([#1553](https://github.com/OpenZeppelin/openzeppelin-solidity/pull/1553)) +- Now conforming to a 4-space indentation code style. ([1508](https://github.com/OpenZeppelin/openzeppelin-solidity/pull/1508)) +- `ERC20`: more gas efficient due to removed redundant `require`s. ([#1409](https://github.com/OpenZeppelin/openzeppelin-solidity/pull/1409)) +- `ERC721`: fixed a bug that prevented internal data structures from being properly cleaned, missing potential gas refunds. ([#1539](https://github.com/OpenZeppelin/openzeppelin-solidity/pull/1539) and [#1549](https://github.com/OpenZeppelin/openzeppelin-solidity/pull/1549)) +- `ERC721`: general gas savings on `transferFrom`, `_mint` and `_burn`, due to redundant `require`s and `SSTORE`s. ([#1549](https://github.com/OpenZeppelin/openzeppelin-solidity/pull/1549)) + +### Bugfixes + +### Breaking changes + +### Deprecations + +- `ERC721._burn(address owner, uint256 tokenId)`: due to the `owner` parameter being unnecessary. ([#1550](https://github.com/OpenZeppelin/openzeppelin-solidity/pull/1550)) +- `RefundableCrowdsale`: due to trading abuse potential on crowdsales that miss their goal. ([#1543](https://github.com/OpenZeppelin/openzeppelin-solidity/pull/1543)) diff --git a/lib/openzeppelin-contracts/CODE_OF_CONDUCT.md b/lib/openzeppelin-contracts/CODE_OF_CONDUCT.md new file mode 100644 index 0000000..cd7770d --- /dev/null +++ b/lib/openzeppelin-contracts/CODE_OF_CONDUCT.md @@ -0,0 +1,73 @@ +# Contributor Covenant Code of Conduct + +## Our Pledge + +In the interest of fostering an open and welcoming environment, we as +contributors and maintainers pledge to making participation in our project and +our community a harassment-free experience for everyone, regardless of age, body +size, disability, ethnicity, sex characteristics, gender identity and expression, +level of experience, education, socio-economic status, nationality, personal +appearance, race, religion, or sexual identity and orientation. + +## Our Standards + +Examples of behavior that contributes to creating a positive environment +include: + +* Using welcoming and inclusive language +* Being respectful of differing viewpoints and experiences +* Gracefully accepting constructive criticism +* Focusing on what is best for the community +* Showing empathy towards other community members + +Examples of unacceptable behavior by participants include: + +* The use of sexualized language or imagery and unwelcome sexual attention or + advances +* Trolling, insulting/derogatory comments, and personal or political attacks +* Public or private harassment +* Publishing others' private information, such as a physical or electronic + address, without explicit permission +* Other conduct which could reasonably be considered inappropriate in a + professional setting + +## Our Responsibilities + +Project maintainers are responsible for clarifying the standards of acceptable +behavior and are expected to take appropriate and fair corrective action in +response to any instances of unacceptable behavior. + +Project maintainers have the right and responsibility to remove, edit, or +reject comments, commits, code, wiki edits, issues, and other contributions +that are not aligned to this Code of Conduct, or to ban temporarily or +permanently any contributor for other behaviors that they deem inappropriate, +threatening, offensive, or harmful. + +## Scope + +This Code of Conduct applies both within project spaces and in public spaces +when an individual is representing the project or its community. Examples of +representing a project or community include using an official project e-mail +address, posting via an official social media account, or acting as an appointed +representative at an online or offline event. Representation of a project may be +further defined and clarified by project maintainers. + +## Enforcement + +Instances of abusive, harassing, or otherwise unacceptable behavior may be +reported by contacting the project team at contact@openzeppelin.com. All +complaints will be reviewed and investigated and will result in a response that +is deemed necessary and appropriate to the circumstances. The project team is +obligated to maintain confidentiality with regard to the reporter of an incident. +Further details of specific enforcement policies may be posted separately. + +Project maintainers who do not follow or enforce the Code of Conduct in good +faith may face temporary or permanent repercussions as determined by other +members of the project's leadership. + +## Attribution + +This Code of Conduct is adapted from the [Contributor Covenant][homepage], version 1.4, +available at https://www.contributor-covenant.org/version/1/4/code-of-conduct.html + +[homepage]: https://www.contributor-covenant.org diff --git a/lib/openzeppelin-contracts/CONTRIBUTING.md b/lib/openzeppelin-contracts/CONTRIBUTING.md new file mode 100644 index 0000000..ecbc2d4 --- /dev/null +++ b/lib/openzeppelin-contracts/CONTRIBUTING.md @@ -0,0 +1,34 @@ +# Contributing Guidelines + +There are many ways to contribute to OpenZeppelin Contracts. + +## Troubleshooting + +You can help other users in the community to solve their smart contract issues in the [OpenZeppelin Forum]. + +[OpenZeppelin Forum]: https://forum.openzeppelin.com/ + +## Opening an issue + +You can [open an issue] to suggest a feature or report a minor bug. For serious bugs please do not open an issue, instead refer to our [security policy] for appropriate steps. + +If you believe your issue may be due to user error and not a problem in the library, consider instead posting a question on the [OpenZeppelin Forum]. + +Before opening an issue, be sure to search through the existing open and closed issues, and consider posting a comment in one of those instead. + +When requesting a new feature, include as many details as you can, especially around the use cases that motivate it. Features are prioritized according to the impact they may have on the ecosystem, so we appreciate information showing that the impact could be high. + +[security policy]: https://github.com/OpenZeppelin/openzeppelin-contracts/security +[open an issue]: https://github.com/OpenZeppelin/openzeppelin-contracts/issues/new/choose + +## Submitting a pull request + +If you would like to contribute code or documentation you may do so by forking the repository and submitting a pull request. + +Any non-trivial code contribution must be first discussed with the maintainers in an issue (see [Opening an issue](#opening-an-issue)). Only very minor changes are accepted without prior discussion. + +Make sure to read and follow the [engineering guidelines](./GUIDELINES.md). Run linter and tests to make sure your pull request is good before submitting it. + +When opening the pull request you will be presented with a template and a series of instructions. Read through it carefully and follow all the steps. Expect a review and feedback from the maintainers afterwards. + +If you're looking for a good place to start, look for issues labelled ["good first issue"](https://github.com/OpenZeppelin/openzeppelin-contracts/labels/good%20first%20issue)! diff --git a/lib/openzeppelin-contracts/GUIDELINES.md b/lib/openzeppelin-contracts/GUIDELINES.md new file mode 100644 index 0000000..cdeddb9 --- /dev/null +++ b/lib/openzeppelin-contracts/GUIDELINES.md @@ -0,0 +1,103 @@ +# Engineering Guidelines + +## Testing + +Code must be thoroughly tested with quality unit tests. + +We defer to the [Moloch Testing Guide](https://github.com/MolochVentures/moloch/tree/master/test#readme) for specific recommendations, though not all of it is relevant here. Note the introduction: + +> Tests should be written, not only to verify correctness of the target code, but to be comprehensively reviewed by other programmers. Therefore, for mission critical Solidity code, the quality of the tests are just as important (if not more so) than the code itself, and should be written with the highest standards of clarity and elegance. + +Every addition or change to the code must come with relevant and comprehensive tests. + +Refactors should avoid simultaneous changes to tests. + +Flaky tests are not acceptable. + +The test suite should run automatically for every change in the repository, and in pull requests tests must pass before merging. + +The test suite coverage must be kept as close to 100% as possible, enforced in pull requests. + +In some cases unit tests may be insufficient and complementary techniques should be used: + +1. Property-based tests (aka. fuzzing) for math-heavy code. +2. Formal verification for state machines. + +## Code style + +Solidity code should be written in a consistent format enforced by a linter, following the official [Solidity Style Guide](https://docs.soliditylang.org/en/latest/style-guide.html). See below for further [Solidity Conventions](#solidity-conventions). + +The code should be simple and straightforward, prioritizing readability and understandability. Consistency and predictability should be maintained across the codebase. In particular, this applies to naming, which should be systematic, clear, and concise. + +Sometimes these guidelines may be broken if doing so brings significant efficiency gains, but explanatory comments should be added. + +Modularity should be pursued, but not at the cost of the above priorities. + +## Documentation + +For contributors, project guidelines and processes must be documented publicly. + +For users, features must be abundantly documented. Documentation should include answers to common questions, solutions to common problems, and recommendations for critical decisions that the user may face. + +All changes to the core codebase (excluding tests, auxiliary scripts, etc.) must be documented in a changelog, except for purely cosmetic or documentation changes. + +## Peer review + +All changes must be submitted through pull requests and go through peer code review. + +The review must be approached by the reviewer in a similar way as if it was an audit of the code in question (but importantly it is not a substitute for and should not be considered an audit). + +Reviewers should enforce code and project guidelines. + +External contributions must be reviewed separately by multiple maintainers. + +## Automation + +Automation should be used as much as possible to reduce the possibility of human error and forgetfulness. + +Automations that make use of sensitive credentials must use secure secret management, and must be strengthened against attacks such as [those on GitHub Actions worklows](https://github.com/nikitastupin/pwnhub). + +Some other examples of automation are: + +- Looking for common security vulnerabilities or errors in our code (eg. reentrancy analysis). +- Keeping dependencies up to date and monitoring for vulnerable dependencies. + +# Solidity Conventions + +In addition to the official Solidity Style Guide we have a number of other conventions that must be followed. + +* All state variables should be private. + + Changes to state should be accompanied by events, and in some cases it is not correct to arbitrarily set state. Encapsulating variables as private and only allowing modification via setters enables us to ensure that events and other rules are followed reliably and prevents this kind of user error. + +* Internal or private state variables or functions should have an underscore prefix. + + ``` + contract TestContract { + uint256 private _privateVar; + uint256 internal _internalVar; + function _testInternal() internal { ... } + function _testPrivate() private { ... } + } + ``` + +* Events should be emitted immediately after the state change that they + represent, and should be named in the past tense. + + ``` + function _burn(address who, uint256 value) internal { + super._burn(who, value); + emit TokensBurned(who, value); + } + ``` + + Some standards (e.g. ERC20) use present tense, and in those cases the + standard specification is used. + +* Interface names should have a capital I prefix. + + ``` + interface IERC777 { + ``` + +* Unchecked arithmetic blocks should contain comments explaining why overflow is guaranteed not to happen. If the reason is immediately apparent from the line above the unchecked block, the comment may be omitted. diff --git a/lib/openzeppelin-contracts/LICENSE b/lib/openzeppelin-contracts/LICENSE new file mode 100644 index 0000000..817249a --- /dev/null +++ b/lib/openzeppelin-contracts/LICENSE @@ -0,0 +1,22 @@ +The MIT License (MIT) + +Copyright (c) 2016-2023 zOS Global Limited and contributors + +Permission is hereby granted, free of charge, to any person obtaining +a copy of this software and associated documentation files (the +"Software"), to deal in the Software without restriction, including +without limitation the rights to use, copy, modify, merge, publish, +distribute, sublicense, and/or sell copies of the Software, and to +permit persons to whom the Software is furnished to do so, subject to +the following conditions: + +The above copyright notice and this permission notice shall be included +in all copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS +OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF +MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. +IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY +CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, +TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE +SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. diff --git a/lib/openzeppelin-contracts/README.md b/lib/openzeppelin-contracts/README.md new file mode 100644 index 0000000..094637e --- /dev/null +++ b/lib/openzeppelin-contracts/README.md @@ -0,0 +1,90 @@ +# OpenZeppelin + +[![NPM Package](https://img.shields.io/npm/v/@openzeppelin/contracts.svg)](https://www.npmjs.org/package/@openzeppelin/contracts) +[![Coverage Status](https://codecov.io/gh/OpenZeppelin/openzeppelin-contracts/graph/badge.svg)](https://codecov.io/gh/OpenZeppelin/openzeppelin-contracts) +[![GitPOAPs](https://public-api.gitpoap.io/v1/repo/OpenZeppelin/openzeppelin-contracts/badge)](https://www.gitpoap.io/gh/OpenZeppelin/openzeppelin-contracts) +[![Docs](https://img.shields.io/badge/docs-%F0%9F%93%84-yellow)](https://docs.openzeppelin.com/contracts) +[![Forum](https://img.shields.io/badge/forum-%F0%9F%92%AC-yellow)](https://docs.openzeppelin.com/contracts) + +**A library for secure smart contract development.** Build on a solid foundation of community-vetted code. + + * Implementations of standards like [ERC20](https://docs.openzeppelin.com/contracts/erc20) and [ERC721](https://docs.openzeppelin.com/contracts/erc721). + * Flexible [role-based permissioning](https://docs.openzeppelin.com/contracts/access-control) scheme. + * Reusable [Solidity components](https://docs.openzeppelin.com/contracts/utilities) to build custom contracts and complex decentralized systems. + +:mage: **Not sure how to get started?** Check out [Contracts Wizard](https://wizard.openzeppelin.com/) — an interactive smart contract generator. + +:building_construction: **Want to scale your decentralized application?** Check out [OpenZeppelin Defender](https://openzeppelin.com/defender) — a secure platform for automating and monitoring your operations. + +## Overview + +### Installation + +``` +$ npm install @openzeppelin/contracts +``` + +OpenZeppelin Contracts features a [stable API](https://docs.openzeppelin.com/contracts/releases-stability#api-stability), which means that your contracts won't break unexpectedly when upgrading to a newer minor version. + +An alternative to npm is to use the GitHub repository (`openzeppelin/openzeppelin-contracts`) to retrieve the contracts. When doing this, make sure to specify the tag for a release such as `v4.5.0`, instead of using the `master` branch. + +### Usage + +Once installed, you can use the contracts in the library by importing them: + +```solidity +pragma solidity ^0.8.0; + +import "@openzeppelin/contracts/token/ERC721/ERC721.sol"; + +contract MyCollectible is ERC721 { + constructor() ERC721("MyCollectible", "MCO") { + } +} +``` + +_If you're new to smart contract development, head to [Developing Smart Contracts](https://docs.openzeppelin.com/learn/developing-smart-contracts) to learn about creating a new project and compiling your contracts._ + +To keep your system secure, you should **always** use the installed code as-is, and neither copy-paste it from online sources nor modify it yourself. The library is designed so that only the contracts and functions you use are deployed, so you don't need to worry about it needlessly increasing gas costs. + +## Learn More + +The guides in the [documentation site](https://docs.openzeppelin.com/contracts) will teach about different concepts, and how to use the related contracts that OpenZeppelin Contracts provides: + +* [Access Control](https://docs.openzeppelin.com/contracts/access-control): decide who can perform each of the actions on your system. +* [Tokens](https://docs.openzeppelin.com/contracts/tokens): create tradeable assets or collectives, and distribute them via [Crowdsales](https://docs.openzeppelin.com/contracts/crowdsales). +* [Utilities](https://docs.openzeppelin.com/contracts/utilities): generic useful tools including non-overflowing math, signature verification, and trustless paying systems. + +The [full API](https://docs.openzeppelin.com/contracts/api/token/ERC20) is also thoroughly documented, and serves as a great reference when developing your smart contract application. You can also ask for help or follow Contracts's development in the [community forum](https://forum.openzeppelin.com). + +Finally, you may want to take a look at the [guides on our blog](https://blog.openzeppelin.com/guides), which cover several common use cases and good practices. The following articles provide great background reading, though please note that some of the referenced tools have changed, as the tooling in the ecosystem continues to rapidly evolve. + +* [The Hitchhiker’s Guide to Smart Contracts in Ethereum](https://blog.openzeppelin.com/the-hitchhikers-guide-to-smart-contracts-in-ethereum-848f08001f05) will help you get an overview of the various tools available for smart contract development, and help you set up your environment. +* [A Gentle Introduction to Ethereum Programming, Part 1](https://blog.openzeppelin.com/a-gentle-introduction-to-ethereum-programming-part-1-783cc7796094) provides very useful information on an introductory level, including many basic concepts from the Ethereum platform. +* For a more in-depth dive, you may read the guide [Designing the Architecture for Your Ethereum Application](https://blog.openzeppelin.com/designing-the-architecture-for-your-ethereum-application-9cec086f8317), which discusses how to better structure your application and its relationship to the real world. + +## Security + +This project is maintained by [OpenZeppelin](https://openzeppelin.com) with the goal of providing a secure and reliable library of smart contract components for the ecosystem. We address security through risk management in various areas such as engineering and open source best practices, scoping and API design, multi-layered review processes, and incident response preparedness. + +The security policy is detailed in [`SECURITY.md`](./SECURITY.md), and specifies how you can report security vulnerabilities, which versions will receive security patches, and how to stay informed about them. We run a [bug bounty program on Immunefi](https://immunefi.com/bounty/openzeppelin) to reward the responsible disclosure of vulnerabilities. + +The engineering guidelines we follow to promote project quality can be found in [`GUIDELINES.md`](./GUIDELINES.md). + +Past audits can be found in [`audits/`](./audits). + +Smart contracts are a nascent techology and carry a high level of technical risk and uncertainty. Although OpenZeppelin is well known for its security audits, using OpenZeppelin Contracts is not a substitute for a security audit. + +OpenZeppelin Contracts is made available under the MIT License, which disclaims all warranties in relation to the project and which limits the liability of those that contribute and maintain the project, including OpenZeppelin. As set out further in the Terms, you acknowledge that you are solely responsible for any use of OpenZeppelin Contracts and you assume all risks associated with any such use. + +## Contribute + +OpenZeppelin Contracts exists thanks to its contributors. There are many ways you can participate and help build high quality software. Check out the [contribution guide](CONTRIBUTING.md)! + +## License + +OpenZeppelin Contracts is released under the [MIT License](LICENSE). + +## Legal + +Your use of this Project is governed by the terms found at www.openzeppelin.com/tos (the "Terms"). diff --git a/lib/openzeppelin-contracts/RELEASING.md b/lib/openzeppelin-contracts/RELEASING.md new file mode 100644 index 0000000..f356ab2 --- /dev/null +++ b/lib/openzeppelin-contracts/RELEASING.md @@ -0,0 +1,36 @@ +# Releasing + +> Visit the documentation for [details about release schedule]. + +Start on an up-to-date `master` branch. + +Create the release branch with `npm run release start minor`. + +Publish a release candidate with `npm run release rc`. + +Publish the final release with `npm run release final`. + +Follow the general [OpenZeppelin Contracts release checklist]. + +[details about release schedule]: https://docs.openzeppelin.com/contracts/releases-stability +[OpenZeppelin Contracts release checklist]: https://github.com/OpenZeppelin/code-style/blob/master/RELEASE_CHECKLIST.md + + +## Merging the release branch + +After the final release, the release branch should be merged back into `master`. This merge must not be squashed because it would lose the tagged release commit. Since the GitHub repo is set up to only allow squashed merges, the merge should be done locally and pushed. + +Make sure to have the latest changes from `upstream` in your local release branch. + +``` +git checkout release-vX.Y.Z +git pull upstream +``` + +``` +git checkout master +git merge --no-ff release-vX.Y.Z +git push upstream master +``` + +The release branch can then be deleted on GitHub. diff --git a/lib/openzeppelin-contracts/SECURITY.md b/lib/openzeppelin-contracts/SECURITY.md new file mode 100644 index 0000000..4d6ff96 --- /dev/null +++ b/lib/openzeppelin-contracts/SECURITY.md @@ -0,0 +1,42 @@ +# Security Policy + +Security vulnerabilities should be disclosed to the project maintainers through [Immunefi], or alternatively by email to security@openzeppelin.com. + +[Immunefi]: https://immunefi.com/bounty/openzeppelin + +## Bug Bounty + +Responsible disclosure of security vulnerabilities is rewarded through a bug bounty program on [Immunefi]. + +There is a bonus reward for issues introduced in release candidates that are reported before making it into a stable release. + +## Security Patches + +Security vulnerabilities will be patched as soon as responsibly possible, and published as an advisory on this repository (see [advisories]) and on the affected npm packages. + +[advisories]: https://github.com/OpenZeppelin/openzeppelin-contracts/security/advisories + +Projects that build on OpenZeppelin Contracts are encouraged to clearly state, in their source code and websites, how to be contacted about security issues in the event that a direct notification is considered necessary. We recommend including it in the NatSpec for the contract as `/// @custom:security-contact security@example.com`. + +Additionally, we recommend installing the library through npm and setting up vulnerability alerts such as [Dependabot]. + +[Dependabot]: https://docs.github.com/en/code-security/supply-chain-security/understanding-your-software-supply-chain/about-supply-chain-security#what-is-dependabot + +### Supported Versions + +Security patches will be released for the latest minor of a given major release. For example, if an issue is found in versions >=4.6.0 and the latest is 4.8.0, the patch will be released only in version 4.8.1. + +Only critical severity bug fixes will be backported to past major releases. + +| Version | Critical security fixes | Other security fixes | +| ------- | ----------------------- | -------------------- | +| 4.x | :white_check_mark: | :white_check_mark: | +| 3.4 | :white_check_mark: | :x: | +| 2.5 | :white_check_mark: | :x: | +| < 2.0 | :x: | :x: | + +Note as well that the Solidity language itself only guarantees security updates for the latest release. + +## Legal + +Smart contracts are a nascent techology and carry a high level of technical risk and uncertainty. OpenZeppelin Contracts is made available under the MIT License, which disclaims all warranties in relation to the project and which limits the liability of those that contribute and maintain the project, including OpenZeppelin. Your use of the project is also governed by the terms found at www.openzeppelin.com/tos (the "Terms"). As set out in the Terms, you are solely responsible for any use of OpenZeppelin Contracts and you assume all risks associated with any such use. This Security Policy in no way evidences or represents an on-going duty by any contributor, including OpenZeppelin, to correct any flaws or alert you to all or any of the potential risks of utilizing the project. diff --git a/lib/openzeppelin-contracts/audits/2017-03.md b/lib/openzeppelin-contracts/audits/2017-03.md new file mode 100644 index 0000000..4cd6dbf --- /dev/null +++ b/lib/openzeppelin-contracts/audits/2017-03.md @@ -0,0 +1,292 @@ +# OpenZeppelin Audit + +NOTE ON 2021-07-19: This report makes reference to Zeppelin, OpenZeppelin, OpenZeppelin Contracts, the OpenZeppelin team, and OpenZeppelin library. Many of these things have since been renamed and know that this audit applies to what is currently called the OpenZeppelin Contracts which are maintained by the OpenZeppelin Contracts Community. + +March, 2017 +Authored by Dennis Peterson and Peter Vessenes + +# Introduction + +Zeppelin requested that New Alchemy perform an audit of the contracts in their OpenZeppelin library. The OpenZeppelin contracts are a set of contracts intended to be a safe building block for a variety of uses by parties that may not be as sophisticated as the OpenZeppelin team. It is a design goal that the contracts be deployable safely and "as-is". + +The contracts are hosted at: + +https://github.com/OpenZeppelin/zeppelin-solidity + +All the contracts in the "contracts" folder are in scope. + +The git commit hash we evaluated is: +9c5975a706b076b7000e8179f8101e0c61024c87 + +# Disclaimer + +The audit makes no statements or warrantees about utility of the code, safety of the code, suitability of the business model, regulatory regime for the business model, or any other statements about fitness of the contracts to purpose, or their bugfree status. The audit documentation is for discussion purposes only. + +# Executive Summary + +Overall the OpenZeppelin codebase is of reasonably high quality -- it is clean, modular and follows best practices throughout. + +It is still in flux as a codebase, and needs better documentation per file as to expected behavior and future plans. It probably needs more comprehensive and aggressive tests written by people less nice than the current OpenZeppelin team. + +We identified two critical errors and one moderate issue, and would not recommend this commit hash for public use until these bugs are remedied. + +The repository includes a set of Truffle unit tests, a requirement and best practice for smart contracts like these; we recommend these be bulked up. + +# Discussion + +## Big Picture: Is This A Worthwhile Project? + +As soon as a developer touches OpenZeppelin contracts, they will modify something, leaving them in an un-audited state. We do not recommend developers deploy any unaudited code to the Blockchain if it will handle money, information or other things of value. + +> "In accordance with Unix philosophy, Perl gives you enough rope to hang yourself" +> --Larry Wall + +We think this is an incredibly worthwhile project -- aided by the high code quality. Creating a framework that can be easily extended helps increase the average code quality on the Blockchain by charting a course for developers and encouraging containment of modifications to certain sections. + +> "Rust: The language that makes you take the safety off before shooting yourself in the foot" +> -- (@mbrubeck) + +We think much more could be done here, and recommend the OpenZeppelin team keep at this and keep focusing on the design goal of removing rope and adding safety. + +## Solidity Version Updates Recommended + +Most of the code uses Solidity 0.4.11, but some files under `Ownership` are marked 0.4.0. These should be updated. + +Solidity 0.4.10 will add several features which could be useful in these contracts: + +- `assert(condition)`, which throws if the condition is false + +- `revert()`, which rolls back without consuming all remaining gas. + +- `address.transfer(value)`, which is like `send` but automatically propagates exceptions, and supports `.gas()`. See https://github.com/ethereum/solidity/issues/610 for more on this. + +## Error Handling: Throw vs Return False +Solidity standards allow two ways to handle an error -- either calling `throw` or returning `false`. Both have benefits. In particular, a `throw` guarantees a complete wipe of the call stack (up to the preceding external call), whereas `false` allows a function to continue. + +In general we prefer `throw` in our code audits, because it is simpler -- it's less for an engineer to keep track of. Returning `false` and using logic to check results can quickly become a poorly-tracked state machine, and this sort of complexity can cause errors. + +In the OpenZeppelin contracts, both styles are used in different parts of the codebase. `SimpleToken` transfers throw upon failure, while the full ERC20 token returns `false`. Some modifiers `throw`, others just wrap the function body in a conditional, effectively allowing the function to return false if the condition is not met. + +We don't love this, and would usually recommend you stick with one style or the other throughout the codebase. + +In at least one case, these different techniques are combined cleverly (see the Multisig comments, line 65). As a set of contracts intended for general use, we recommend you either strive for more consistency or document explicit design criteria that govern which techniques are used where. + +Note that it may be impossible to use either one in all situations. For example, SafeMath functions pretty much have to throw upon failure, but ERC20 specifies returning booleans. Therefore we make no particular recommendations, but simply point out inconsistencies to consider. + +# Critical Issues + +## Stuck Ether in Crowdsale contract +CrowdsaleToken.sol has no provision for withdrawing the raised ether. We *strongly* recommend a standard `withdraw` function be added. There is no scenario in which someone should deploy this contract as is, whether for testing or live. + +## Recursive Call in MultisigWallet +Line 45 of `MultisigWallet.sol` checks if the amount being sent by `execute` is under a daily limit. + +This function can only be called by the "Owner". As a first angle of attack, it's worth asking what will happen if the multisig wallet owners reset the daily limit by approving a call to `resetSpentToday`. + +If a chain of calls can be constructed in which the owner confirms the `resetSpentToday` function and then withdraws through `execute` in a recursive call, the contract can be drained. In fact, this could be done without a recursive call, just through repeated `execute` calls alternating with the `confirm` calls. + +We are still working through the confirmation protocol in `Shareable.sol`, but we are not convinced that this is impossible, in fact it looks possible. The flexibility any shared owner has in being able to revoke confirmation later is another worrisome angle of approach even if some simple patches are included. + +This bug has a number of causes that need to be addressed: + +1. `resetSpentToday` and `confirm` together do not limit the days on which the function can be called or (it appears) the number of times it can be called. +1. Once a call has been confirmed and `execute`d it appears that it can be re-executed. This is not good. +3. `confirmandCheck` doesn't seem to have logic about whether or not the function in question has been called. +4. Even if it did, `revoke` would need updates and logic to deal with revocation requests after a function call had been completed. + +We do not recommend using the MultisigWallet until these issues are fixed. + +# Moderate to Minor Issues + +## PullPayment +PullPayment.sol needs some work. It has no explicit provision for cancelling a payment. This would be desirable in a number of scenarios; consider a payee losing their wallet, or giving a griefing address, or just an address that requires more than the default gas offered by `send`. + +`asyncSend` has no overflow checking. This is a bad plan. We recommend overflow and underflow checking at the layer closest to the data manipulation. + +`asyncSend` allows more balance to be queued up for sending than the contract holds. This is probably a bad idea, or at the very least should be called something different. If the intent is to allow this, it should have provisions for dealing with race conditions between competing `withdrawPayments` calls. + +It would be nice to see how many payments are pending. This would imply a bit of a rewrite; we recommend this contract get some design time, and that developers don't rely on it in its current state. + +## Shareable Contract + +We do not believe the `Shareable.sol` contract is ready for primetime. It is missing functions, and as written may be vulnerable to a reordering attack -- an attack in which a miner or other party "racing" with a smart contract participant inserts their own information into a list or mapping. + +The confirmation and revocation code needs to be looked over with a very careful eye imagining extraordinarily bad behavior by shared owners before this contract can be called safe. + +No sanity checks on the initial constructor's `required` argument are worrisome as well. + +# Line by Line Comments + +## Lifecycle + +### Killable + +Very simple, allows owner to call selfdestruct, sending funds to owner. No issues. However, note that `selfdestruct` should typically not be used; it is common that a developer may want to access data in a former contract, and they may not understand that `selfdestruct` limits access to the contract. We recommend better documentation about this dynamic, and an alternate function name for `kill` like `completelyDestroy` while `kill` would perhaps merely send funds to the owner. + +Also note that a killable function allows the owner to take funds regardless of other logic. This may be desirable or undesirable depending on the circumstances. Perhaps `Killable` should have a different name as well. + +### Migrations + +I presume that the goal of this contract is to allow and annotate a migration to a new smart contract address. We are not clear here how this would be accomplished by the code; we'd like to review with the OpenZeppelin team. + +### Pausable + +We like these pauses! Note that these allow significant griefing potential by owners, and that this might not be obvious to participants in smart contracts using the OpenZeppelin framework. We would recommend that additional sample logic be added to for instance the TokenContract showing safer use of the pause and resume functions. In particular, we would recommend a timelock after which anyone could unpause the contract. + +The modifiers use the pattern `if(bool){_;}`. This is fine for functions that return false upon failure, but could be problematic for functions expected to throw upon failure. See our comments above on standardizing on `throw` or `return(false)`. + +## Ownership + +### Ownable + +Line 19: Modifier throws if doesn't meet condition, in contrast to some other inheritable modifiers (e.g. in Pausable) that use `if(bool){_;}`. + +### Claimable + +Inherits from Ownable but the existing owner sets a pendingOwner who has to claim ownership. + +Line 17: Another modifier that throws. + +### DelayedClaimable + +Is there any reason to descend from Ownable directly, instead of just Claimable, which descends from Ownable? If not, descending from both just adds confusion. + +### Contactable + +Allows owner to set a public string of contract information. No issues. + +### Shareable + +This needs some work. Doesn't check if `_required <= len(_owners)` for instance, that would be a bummer. What if _required were like `MAX - 1`? + +I have a general concern about the difference between `owners`, `_owners`, and `owner` in `Ownable.sol`. I recommend "Owners" be renamed. In general we do not recomment single character differences in variable names, although a preceding underscore is not uncommon in Solidity code. + +Line 34: "this contract only has six types of events"...actually only two. + +Line 61: Why is `ownerIndex` keyed by addresses hashed to `uint`s? Why not use the addresses directly, so `ownerIndex` is less obscure, and so there's stronger typing? + +Line 62: Do not love `++i) ... owners[2+ i]`. Makes me do math, which is not what I want to do. I want to not have to do math. + +There should probably be a function for adding a new operation, so the developer doesn't have to work directly with the internal data. (This would make the multisig contract even shorter.) + +There's a `revoke` function but not a `propose` function that we can see. + +Beware reordering. If `propose` allows the user to choose a bytes string for their proposal, bad things(TM) will happen as currently written. + + +### Multisig + +Just an interface. Note it allows changing an owner address, but not changing the number of owners. This is somewhat limiting but also simplifies implementation. + +## Payment + +### PullPayment + +Safe from reentrance attack since ether send is at the end, plus it uses `.send()` rather than `.call.value()`. + +There's an argument to be made that `.call.value()` is a better option *if* you're sure that it will be done after all state updates, since `.send` will fail if the recipient has an expensive fallback function. However, in the context of a function meant to be embedded in other contracts, it's probably better to use `.send`. One possible compromise is to add a function which allows only the owner to send ether via `.call.value`. + +If you don't use `call.value` you should implement a `cancel` function in case some value is pending here. + +Line 14: +Doesn't use safeAdd. Although it appears that payout amounts can only be increased, in fact the payer could lower the payout as much as desired via overflow. Also, the payer could add a large non-overflowing amount, causing the payment to exceed the contract balance and therefore fail when withdraw is attempted. + +Recommendation: track the sum of non-withdrawn asyncSends, and don't allow a new one which exceeds the leftover balance. If it's ever desirable to make payments revocable, it should be done explicitly. + +## Tokens + +### ERC20 + +Standard ERC20 interface only. + +There's a security hole in the standard, reported at Edcon: `approve` does not protect against race conditions and simply replaces the current value. An approved spender could wait for the owner to call `approve` again, then attempt to spend the old limit before the new limit is applied. If successful, this attacker could successfully spend the sum of both limits. + +This could be fixed by either (1) including the old limit as a parameter, so the update will fail if some gets spent, or (2) using the value parameter as a delta instead of replacement value. + +This is not fixable while adhering to the current full ERC20 standard, though it would be possible to add a "secureApprove" function. The impact isn't extreme since at least you can only be attacked by addresses you approved. Also, users could mitigate this by always setting spending limits to zero and checking for spends, before setting the new limit. + +Edcon slides: +https://drive.google.com/file/d/0ByMtMw2hul0EN3NCaVFHSFdxRzA/view + +### ERC20Basic + +Simpler interface skipping the Approve function. Note this departs from ERC20 in another way: transfer throws instead of returning false. + +### BasicToken + +Uses `SafeSub` and `SafeMath`, so transfer `throw`s instead of returning false. This complies with ERC20Basic but not the actual ERC20 standard. + +### StandardToken + +Implementation of full ERC20 token. + +Transfer() and transferFrom() use SafeMath functions, which will cause them to throw instead of returning false. Not a security issue but departs from standard. + +### SimpleToken + +Sample instantiation of StandardToken. Note that in this sample, decimals is 18 and supply only 10,000, so the supply is a small fraction of a single nominal token. + +### CrowdsaleToken + +StandardToken which mints tokens at a fixed price when sent ether. + +There's no provision for owner withdrawing the ether. As a sample for crowdsales it should be Ownable and allow the owner to withdraw ether, rather than stranding the ether in the contract. + +Note: an alternative pattern is a mint() function which is only callable from a separate crowdsale contract, so any sort of rules can be added without modifying the token itself. + +### VestedToken + +Lines 23, 27: +Functions `transfer()` and `transferFrom()` have a modifier canTransfer which throws if not enough tokens are available. However, transfer() returns a boolean success. Inconsistent treatment of failure conditions may cause problems for other contracts using the token. (Note that transferableTokens() relies on safeSub(), so will also throw if there's insufficient balance.) + +Line 64: +Delete not actually necessary since the value is overwritten in the next line anyway. + +## Root level + +### Bounty + +Avoids potential race condition by having each researcher deploy a separate contract for attack; if a research manages to break his associated contract, other researchers can't immediately claim the reward, they have to reproduce the attack in their own contracts. + +A developer could subvert this intent by implementing `deployContract()` to always return the same address. However, this would break the `researchers` mapping, updating the researcher address associated with the contract. This could be prevented by blocking rewrites in `researchers`. + +### DayLimit + +The modifier `limitedDaily` calls `underLimit`, which both checks that the spend is below the daily limit, and adds the input value to the daily spend. This is fine if all functions throw upon failure. However, not all OpenZeppelin functions do this; there are functions that returns false, and modifiers that wrap the function body in `if (bool) {_;}`. In these cases, `_value` will be added to `spentToday`, but ether may not actually be sent because other preconditions were not met. (However in the OpenZeppelin multisig this is not a problem.) + +Lines 4, 11: +Comment claims that `DayLimit` is multiowned, and Shareable is imported, but DayLimit does not actually inherit from Shareable. The intent may be for child contracts to inherit from Shareable (as Multisig does); in this case the import should be removed and the comment altered. + +Line 46: +Manual overflow check instead of using safeAdd. Since this is called from a function that throws upon failure anyway, there's no real downside to using safeAdd. + +### LimitBalance + +No issues. + +### MultisigWallet + +Lines 28, 76, 80: +`kill`, `setDailyLimit`, and `resetSpentToday` only happen with multisig approval, and hashes for these actions are logged by Shareable. However, they should probably post their own events for easy reading. + +Line 45: +This call to underLimit will reduce the daily limit, and then either throw or return 0. So in this case there's no danger that the limit will be reduced without the operation going through. + +Line 65: +Shareable's onlyManyOwners will take the user's confirmation, and execute the function body if and only if enough users have confirmed. Whole thing throws if the send fails, which will roll back the confirmation. Confirm returns false if not enough have confirmed yet, true if the whole thing succeeds, and throws only in the exceptional circumstance that the designated transaction unexpectedly fails. Elegant design. + +Line 68: +Throw here is good but note this function can fail either by returning false or by throwing. + +Line 92: +A bit odd to split `clearPending()` between this contract and Shareable. However this does allow contracts inheriting from Shareable to use custom structs for pending transactions. + + +### SafeMath + +Another interesting comment from the same Edcon presentation was that the overflow behavior of Solidity is undocumented, so in theory, source code that relies on it could break with a future revision. + +However, compiled code should be fine, and in the unlikely event that the compiler is revised in this way, there should be plenty of warning. (But this is an argument for keeping overflow checks isolated in SafeMath.) + +Aside from that small caveat, these are fine. + diff --git a/lib/openzeppelin-contracts/audits/2018-10.pdf b/lib/openzeppelin-contracts/audits/2018-10.pdf new file mode 100644 index 0000000000000000000000000000000000000000..d5bf12741c8a6d44ed597de7204fde72d91dec35 GIT binary patch literal 1000527 zcmcG#2UJr__XmogfLOtX4FL-vLV8G$;z{qM7f>*b^g3!*3@iUkxE6%o5w zC{`?}h$yJoP{CdieF5*iUs>Mof8Sf{oseYaoY}v#`Sx=(M3g>Ehf2GH^4*LtYu$Pp92s6zP8InC6Cm)N8Qw60(bb;6%NK2$9l5! zP_^i@E*LqdUp+ke>4x|=jWL3HyhzKJlv{%)3 zKFc-O_dnS%DL2uwN^$=!Wm@``tG75E*K_6fI7_pa=q*ig*sZ@mg%+< z{2y2e4gS+gVJM`-N)X83nd#L!T}%^r@cf_Yl`(;Hj~@*2n;>jhz>nuPSNKOQLZ*>c zZAH=~m2<7Rr8yW+uJrEqi1epc>@Q%SD&~Y z68gIIJ?qo17lYj7$s5|Ac6Gd&w6ADvy9r(z9sgwf6KxHrJUwY1xB2!t&#%uewCQhO z2=IT*PO({8EiJf7Cr zhnF;@$aWf*L4-Z-n2A%`Tty@Hj2UtwsJscul&fd@tm6#Ec5LM0n%cZQ$n@T8q~Ha{ zhkO%w&E-8Z^TNqzd*eHn6P|wj8Nj&e6A3q?4#lK|@7;^eU%z_msK>l3&{miM6?p%> 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z*GrsafY?Lr0%%BY252Or8>moloxw>~2-ikHLvR3S42*jmbii=V!2#^yx&>$~Vk=Mw z;T|0aB@f0VPJxyS)|VoXdoZvLWI)I+6lipy_`oR=G!pPS5~*9DgTn|2Yk&qm@Lmuf zu+KqD1NVC1p+0gC253T5W`^SszAP{d%$Fq)yMX9`dqK`bDc_x%i9wZn6cIo}N-ZK(6eogM}XJJ^3JN`)}ZVq#|!=-~Bi^ P3ADOAJw3B!^LYOO&o2YP literal 0 HcmV?d00001 diff --git a/lib/openzeppelin-contracts/audits/README.md b/lib/openzeppelin-contracts/audits/README.md new file mode 100644 index 0000000..40098a4 --- /dev/null +++ b/lib/openzeppelin-contracts/audits/README.md @@ -0,0 +1,15 @@ +# Audits + +| Date | Version | Commit | Auditor | Scope | Links | +| ------------ | ------- | --------- | ------------ | -------------------- | ----------------------------------------------------------- | +| October 2022 | v4.8.0 | `14f98db` | OpenZeppelin | ERC4626, Checkpoints | [🔗](./2022-10-ERC4626.pdf) [🔗](./2022-10-Checkpoints.pdf) | +| October 2018 | v2.0.0 | `dac5bcc` | LevelK | Everything | [🔗](./2018-10.pdf) | +| March 2017 | v1.0.4 | `9c5975a` | New Alchemy | Everything | [🔗](./2017-03.md) | + +# Formal Verification + +| Date | Version | Commit | Tool | Scope | Links | +| ------------ | ------- | --------- | ------- | -------------------------------------------------------------------------------------------------------------------------------- | ------------------------------------ | +| May 2022 | v4.7.0 | `109778c` | Certora | Initializable, GovernorPreventLateQuorum, ERC1155Burnable, ERC1155Pausable, ERC1155Supply, ERC1155Holder, ERC1155Receiver | [🔗](../certora/reports/2022-05.pdf) | +| March 2022 | v4.4.0 | `4088540` | Certora | ERC20Votes, ERC20FlashMint, ERC20Wrapper, TimelockController, ERC721Votes, Votes, AccessControl, ERC1155 | [🔗](../certora/reports/2022-03.pdf) | +| October 2021 | v4.4.0 | `4088540` | Certora | Governor, GovernorCountingSimple, GovernorProposalThreshold, GovernorTimelockControl, GovernorVotes, GovernorVotesQuorumFraction | [🔗](../certora/reports/2021-10.pdf) | diff --git a/lib/openzeppelin-contracts/certora/Makefile b/lib/openzeppelin-contracts/certora/Makefile new file mode 100644 index 0000000..bbbddbc --- /dev/null +++ b/lib/openzeppelin-contracts/certora/Makefile @@ -0,0 +1,24 @@ +default: help + +PATCH = applyHarness.patch +CONTRACTS_DIR = ../contracts +MUNGED_DIR = munged + +help: + @echo "usage:" + @echo " make clean: remove all generated files (those ignored by git)" + @echo " make $(MUNGED_DIR): create $(MUNGED_DIR) directory by applying the patch file to $(CONTRACTS_DIR)" + @echo " make record: record a new patch file capturing the differences between $(CONTRACTS_DIR) and $(MUNGED_DIR)" + +munged: $(wildcard $(CONTRACTS_DIR)/*.sol) $(PATCH) + rm -rf $@ + cp -r $(CONTRACTS_DIR) $@ + patch -p0 -d $@ < $(PATCH) + +record: + diff -ruN $(CONTRACTS_DIR) $(MUNGED_DIR) | sed 's+../contracts/++g' | sed 's+munged/++g' > $(PATCH) + +clean: + git clean -fdX + touch $(PATCH) + diff --git a/lib/openzeppelin-contracts/certora/README.md b/lib/openzeppelin-contracts/certora/README.md new file mode 100644 index 0000000..55f84d4 --- /dev/null +++ b/lib/openzeppelin-contracts/certora/README.md @@ -0,0 +1,56 @@ +# Running the certora verification tool + +These instructions detail the process for running CVT on the OpenZeppelin (Wizard/Governor) contracts. + +Documentation for CVT and the specification language are available +[here](https://certora.atlassian.net/wiki/spaces/CPD/overview) + +## Running the verification + +The scripts in the `certora/scripts` directory are used to submit verification +jobs to the Certora verification service. After the job is complete, the results will be available on +[the Certora portal](https://vaas-stg.certora.com/). + +These scripts should be run from the root directory; for example by running + +``` +sh certora/scripts/verifyAll.sh +``` + +The most important of these is `verifyAll.sh`, which checks +all of the harnessed contracts (`certora/harness/Wizard*.sol`) against all of +the specifications (`certora/spec/*.spec`). + +The other scripts run a subset of the specifications or the contracts. You can +verify different contracts or specifications by changing the `--verify` option, +and you can run a single rule or method with the `--rule` or `--method` option. + +For example, to verify the `WizardFirstPriority` contract against the +`GovernorCountingSimple` specification, you could change the `--verify` line of +the `WizardControlFirstPriortity.sh` script to: + +``` +--verify WizardFirstPriority:certora/specs/GovernorCountingSimple.spec \ +``` + +## Adapting to changes in the contracts + +Some of our rules require the code to be simplified in various ways. Our +primary tool for performing these simplifications is to run verification on a +contract that extends the original contracts and overrides some of the methods. +These "harness" contracts can be found in the `certora/harness` directory. + +This pattern does require some modifications to the original code: some methods +need to be made virtual or public, for example. These changes are handled by +applying a patch to the code before verification. + +When one of the `verify` scripts is executed, it first applies the patch file +`certora/applyHarness.patch` to the `contracts` directory, placing the output +in the `certora/munged` directory. We then verify the contracts in the +`certora/munged` directory. + +If the original contracts change, it is possible to create a conflict with the +patch. In this case, the verify scripts will report an error message and output +rejected changes in the `munged` directory. After merging the changes, run +`make record` in the `certora` directory; this will regenerate the patch file, +which can then be checked into git. diff --git a/lib/openzeppelin-contracts/certora/applyHarness.patch b/lib/openzeppelin-contracts/certora/applyHarness.patch new file mode 100644 index 0000000..0fbe9ac --- /dev/null +++ b/lib/openzeppelin-contracts/certora/applyHarness.patch @@ -0,0 +1,101 @@ +diff -ruN .gitignore .gitignore +--- .gitignore 1969-12-31 19:00:00.000000000 -0500 ++++ .gitignore 2021-12-09 14:46:33.923637220 -0500 +@@ -0,0 +1,2 @@ ++* ++!.gitignore +diff -ruN governance/compatibility/GovernorCompatibilityBravo.sol governance/compatibility/GovernorCompatibilityBravo.sol +--- governance/compatibility/GovernorCompatibilityBravo.sol 2021-12-03 15:24:56.523654357 -0500 ++++ governance/compatibility/GovernorCompatibilityBravo.sol 2021-12-09 14:46:33.923637220 -0500 +@@ -245,7 +245,7 @@ + /** + * @dev See {Governor-_quorumReached}. In this module, only forVotes count toward the quorum. + */ +- function _quorumReached(uint256 proposalId) internal view virtual override returns (bool) { ++ function _quorumReached(uint256 proposalId) public view virtual override returns (bool) { // HARNESS: changed to public from internal + ProposalDetails storage details = _proposalDetails[proposalId]; + return quorum(proposalSnapshot(proposalId)) <= details.forVotes; + } +@@ -253,7 +253,7 @@ + /** + * @dev See {Governor-_voteSucceeded}. In this module, the forVotes must be scritly over the againstVotes. + */ +- function _voteSucceeded(uint256 proposalId) internal view virtual override returns (bool) { ++ function _voteSucceeded(uint256 proposalId) public view virtual override returns (bool) { // HARNESS: changed to public from internal + ProposalDetails storage details = _proposalDetails[proposalId]; + return details.forVotes > details.againstVotes; + } +diff -ruN governance/extensions/GovernorCountingSimple.sol governance/extensions/GovernorCountingSimple.sol +--- governance/extensions/GovernorCountingSimple.sol 2021-12-03 15:24:56.523654357 -0500 ++++ governance/extensions/GovernorCountingSimple.sol 2021-12-09 14:46:33.923637220 -0500 +@@ -64,7 +64,7 @@ + /** + * @dev See {Governor-_quorumReached}. + */ +- function _quorumReached(uint256 proposalId) internal view virtual override returns (bool) { ++ function _quorumReached(uint256 proposalId) public view virtual override returns (bool) { + ProposalVote storage proposalvote = _proposalVotes[proposalId]; + + return quorum(proposalSnapshot(proposalId)) <= proposalvote.forVotes + proposalvote.abstainVotes; +@@ -73,7 +73,7 @@ + /** + * @dev See {Governor-_voteSucceeded}. In this module, the forVotes must be strictly over the againstVotes. + */ +- function _voteSucceeded(uint256 proposalId) internal view virtual override returns (bool) { ++ function _voteSucceeded(uint256 proposalId) public view virtual override returns (bool) { + ProposalVote storage proposalvote = _proposalVotes[proposalId]; + + return proposalvote.forVotes > proposalvote.againstVotes; +diff -ruN governance/extensions/GovernorTimelockControl.sol governance/extensions/GovernorTimelockControl.sol +--- governance/extensions/GovernorTimelockControl.sol 2021-12-03 15:24:56.523654357 -0500 ++++ governance/extensions/GovernorTimelockControl.sol 2021-12-09 14:46:33.923637220 -0500 +@@ -111,7 +111,7 @@ + bytes[] memory calldatas, + bytes32 descriptionHash + ) internal virtual override { +- _timelock.executeBatch{value: msg.value}(targets, values, calldatas, 0, descriptionHash); ++ _timelock.executeBatch{value: msg.value}(targets, values, calldatas, 0, descriptionHash); + } + + /** +diff -ruN governance/Governor.sol governance/Governor.sol +--- governance/Governor.sol 2021-12-03 15:24:56.523654357 -0500 ++++ governance/Governor.sol 2021-12-09 14:46:56.411503587 -0500 +@@ -38,8 +38,8 @@ + + string private _name; + +- mapping(uint256 => ProposalCore) private _proposals; +- ++ mapping(uint256 => ProposalCore) public _proposals; ++ + /** + * @dev Restrict access to governor executing address. Some module might override the _executor function to make + * sure this modifier is consistent with the execution model. +@@ -167,12 +167,12 @@ + /** + * @dev Amount of votes already cast passes the threshold limit. + */ +- function _quorumReached(uint256 proposalId) internal view virtual returns (bool); ++ function _quorumReached(uint256 proposalId) public view virtual returns (bool); // HARNESS: changed to public from internal + + /** + * @dev Is the proposal successful or not. + */ +- function _voteSucceeded(uint256 proposalId) internal view virtual returns (bool); ++ function _voteSucceeded(uint256 proposalId) public view virtual returns (bool); // HARNESS: changed to public from internal + + /** + * @dev Register a vote with a given support and voting weight. +diff -ruN token/ERC20/extensions/ERC20Votes.sol token/ERC20/extensions/ERC20Votes.sol +--- token/ERC20/extensions/ERC20Votes.sol 2021-12-03 15:24:56.527654330 -0500 ++++ token/ERC20/extensions/ERC20Votes.sol 2021-12-09 14:46:33.927637196 -0500 +@@ -84,7 +84,7 @@ + * + * - `blockNumber` must have been already mined + */ +- function getPastVotes(address account, uint256 blockNumber) public view returns (uint256) { ++ function getPastVotes(address account, uint256 blockNumber) public view virtual returns (uint256) { + require(blockNumber < block.number, "ERC20Votes: block not yet mined"); + return _checkpointsLookup(_checkpoints[account], blockNumber); + } diff --git a/lib/openzeppelin-contracts/certora/harnesses/ERC20VotesHarness.sol b/lib/openzeppelin-contracts/certora/harnesses/ERC20VotesHarness.sol new file mode 100644 index 0000000..5067ecf --- /dev/null +++ b/lib/openzeppelin-contracts/certora/harnesses/ERC20VotesHarness.sol @@ -0,0 +1,28 @@ +import "../munged/token/ERC20/extensions/ERC20Votes.sol"; + +contract ERC20VotesHarness is ERC20Votes { + constructor(string memory name, string memory symbol) ERC20Permit(name) ERC20(name, symbol) {} + + mapping(address => mapping(uint256 => uint256)) public _getPastVotes; + + function _afterTokenTransfer( + address from, + address to, + uint256 amount + ) internal virtual override { + super._afterTokenTransfer(from, to, amount); + _getPastVotes[from][block.number] -= amount; + _getPastVotes[to][block.number] += amount; + } + + /** + * @dev Change delegation for `delegator` to `delegatee`. + * + * Emits events {DelegateChanged} and {DelegateVotesChanged}. + */ + function _delegate(address delegator, address delegatee) internal virtual override{ + super._delegate(delegator, delegatee); + _getPastVotes[delegator][block.number] -= balanceOf(delegator); + _getPastVotes[delegatee][block.number] += balanceOf(delegator); + } +} diff --git a/lib/openzeppelin-contracts/certora/harnesses/WizardControlFirstPriority.sol b/lib/openzeppelin-contracts/certora/harnesses/WizardControlFirstPriority.sol new file mode 100644 index 0000000..5ae7fe0 --- /dev/null +++ b/lib/openzeppelin-contracts/certora/harnesses/WizardControlFirstPriority.sol @@ -0,0 +1,150 @@ +// SPDX-License-Identifier: MIT +pragma solidity ^0.8.2; + +import "../munged/governance/Governor.sol"; +import "../munged/governance/extensions/GovernorCountingSimple.sol"; +import "../munged/governance/extensions/GovernorVotes.sol"; +import "../munged/governance/extensions/GovernorVotesQuorumFraction.sol"; +import "../munged/governance/extensions/GovernorTimelockControl.sol"; +import "../munged/governance/extensions/GovernorProposalThreshold.sol"; + +/* +Wizard options: +ProposalThreshhold = 10 +ERC20Votes +TimelockController +*/ + +contract WizardControlFirstPriority is Governor, GovernorProposalThreshold, GovernorCountingSimple, GovernorVotes, GovernorVotesQuorumFraction, GovernorTimelockControl { + constructor(ERC20Votes _token, TimelockController _timelock, string memory name, uint256 quorumFraction) + Governor(name) + GovernorVotes(_token) + GovernorVotesQuorumFraction(quorumFraction) + GovernorTimelockControl(_timelock) + {} + + //HARNESS + + function isExecuted(uint256 proposalId) public view returns (bool) { + return _proposals[proposalId].executed; + } + + function isCanceled(uint256 proposalId) public view returns (bool) { + return _proposals[proposalId].canceled; + } + + uint256 _votingDelay; + + uint256 _votingPeriod; + + uint256 _proposalThreshold; + + mapping(uint256 => uint256) public ghost_sum_vote_power_by_id; + + function _castVote( + uint256 proposalId, + address account, + uint8 support, + string memory reason + ) internal override virtual returns (uint256) { + + uint256 deltaWeight = super._castVote(proposalId, account, support, reason); //HARNESS + ghost_sum_vote_power_by_id[proposalId] += deltaWeight; + + return deltaWeight; + } + + function snapshot(uint256 proposalId) public view returns (uint64) { + return _proposals[proposalId].voteStart._deadline; + } + + + function getExecutor() public view returns (address){ + return _executor(); + } + + // original code, harnessed + + function votingDelay() public view override returns (uint256) { // HARNESS: pure -> view + return _votingDelay; // HARNESS: parametric + } + + function votingPeriod() public view override returns (uint256) { // HARNESS: pure -> view + return _votingPeriod; // HARNESS: parametric + } + + function proposalThreshold() public view override returns (uint256) { // HARNESS: pure -> view + return _proposalThreshold; // HARNESS: parametric + } + + // original code, not harnessed + // The following functions are overrides required by Solidity. + + function quorum(uint256 blockNumber) + public + view + override(IGovernor, GovernorVotesQuorumFraction) + returns (uint256) + { + return super.quorum(blockNumber); + } + + function getVotes(address account, uint256 blockNumber) + public + view + override(IGovernor, GovernorVotes) + returns (uint256) + { + return super.getVotes(account, blockNumber); + } + + function state(uint256 proposalId) + public + view + override(Governor, GovernorTimelockControl) + returns (ProposalState) + { + return super.state(proposalId); + } + + function propose(address[] memory targets, uint256[] memory values, bytes[] memory calldatas, string memory description) + public + override(Governor, GovernorProposalThreshold, IGovernor) + returns (uint256) + { + return super.propose(targets, values, calldatas, description); + } + + function _execute(uint256 proposalId, address[] memory targets, uint256[] memory values, bytes[] memory calldatas, bytes32 descriptionHash) + internal + override(Governor, GovernorTimelockControl) + { + super._execute(proposalId, targets, values, calldatas, descriptionHash); + } + + function _cancel(address[] memory targets, uint256[] memory values, bytes[] memory calldatas, bytes32 descriptionHash) + internal + override(Governor, GovernorTimelockControl) + returns (uint256) + { + return super._cancel(targets, values, calldatas, descriptionHash); + } + + function _executor() + internal + view + override(Governor, GovernorTimelockControl) + returns (address) + { + return super._executor(); + } + + function supportsInterface(bytes4 interfaceId) + public + view + override(Governor, GovernorTimelockControl) + returns (bool) + { + return super.supportsInterface(interfaceId); + } +} diff --git a/lib/openzeppelin-contracts/certora/harnesses/WizardFirstTry.sol b/lib/openzeppelin-contracts/certora/harnesses/WizardFirstTry.sol new file mode 100644 index 0000000..83fece0 --- /dev/null +++ b/lib/openzeppelin-contracts/certora/harnesses/WizardFirstTry.sol @@ -0,0 +1,141 @@ +// SPDX-License-Identifier: MIT +pragma solidity ^0.8.2; + +import "../munged/governance/Governor.sol"; +import "../munged/governance/extensions/GovernorCountingSimple.sol"; +import "../munged/governance/extensions/GovernorVotes.sol"; +import "../munged/governance/extensions/GovernorVotesQuorumFraction.sol"; +import "../munged/governance/extensions/GovernorTimelockCompound.sol"; + +/* +Wizard options: +ERC20Votes +TimelockCompound +*/ + +contract WizardFirstTry is Governor, GovernorCountingSimple, GovernorVotes, GovernorVotesQuorumFraction, GovernorTimelockCompound { + constructor(ERC20Votes _token, ICompoundTimelock _timelock, string memory name, uint256 quorumFraction) + Governor(name) + GovernorVotes(_token) + GovernorVotesQuorumFraction(quorumFraction) + GovernorTimelockCompound(_timelock) + {} + + //HARNESS + + function isExecuted(uint256 proposalId) public view returns (bool) { + return _proposals[proposalId].executed; + } + + function isCanceled(uint256 proposalId) public view returns (bool) { + return _proposals[proposalId].canceled; + } + + function snapshot(uint256 proposalId) public view returns (uint64) { + return _proposals[proposalId].voteStart._deadline; + } + + function getExecutor() public view returns (address){ + return _executor(); + } + + uint256 _votingDelay; + + uint256 _votingPeriod; + + mapping(uint256 => uint256) public ghost_sum_vote_power_by_id; + + function _castVote( + uint256 proposalId, + address account, + uint8 support, + string memory reason + ) internal override virtual returns (uint256) { + + uint256 deltaWeight = super._castVote(proposalId, account, support, reason); //HARNESS + ghost_sum_vote_power_by_id[proposalId] += deltaWeight; + + return deltaWeight; + } + + // original code, harnessed + + function votingDelay() public view override virtual returns (uint256) { // HARNESS: pure -> view + return _votingDelay; // HARNESS: parametric + } + + function votingPeriod() public view override virtual returns (uint256) { // HARNESS: pure -> view + return _votingPeriod; // HARNESS: parametric + } + + // original code, not harnessed + // The following functions are overrides required by Solidity. + + function quorum(uint256 blockNumber) + public + view + override(IGovernor, GovernorVotesQuorumFraction) + returns (uint256) + { + return super.quorum(blockNumber); + } + + function getVotes(address account, uint256 blockNumber) + public + view + override(IGovernor, GovernorVotes) + returns (uint256) + { + return super.getVotes(account, blockNumber); + } + + function state(uint256 proposalId) + public + view + override(Governor, GovernorTimelockCompound) + returns (ProposalState) + { + return super.state(proposalId); + } + + function propose(address[] memory targets, uint256[] memory values, bytes[] memory calldatas, string memory description) + public + override(Governor, IGovernor) + returns (uint256) + { + return super.propose(targets, values, calldatas, description); + } + + function _execute(uint256 proposalId, address[] memory targets, uint256[] memory values, bytes[] memory calldatas, bytes32 descriptionHash) + internal + override(Governor, GovernorTimelockCompound) + { + super._execute(proposalId, targets, values, calldatas, descriptionHash); + } + + function _cancel(address[] memory targets, uint256[] memory values, bytes[] memory calldatas, bytes32 descriptionHash) + internal + override(Governor, GovernorTimelockCompound) + returns (uint256) + { + return super._cancel(targets, values, calldatas, descriptionHash); + } + + function _executor() + internal + view + override(Governor, GovernorTimelockCompound) + returns (address) + { + return super._executor(); + } + + function supportsInterface(bytes4 interfaceId) + public + view + override(Governor, GovernorTimelockCompound) + returns (bool) + { + return super.supportsInterface(interfaceId); + } +} diff --git a/lib/openzeppelin-contracts/certora/munged/.gitignore b/lib/openzeppelin-contracts/certora/munged/.gitignore new file mode 100644 index 0000000..d6b7ef3 --- /dev/null +++ b/lib/openzeppelin-contracts/certora/munged/.gitignore @@ -0,0 +1,2 @@ +* +!.gitignore diff --git a/lib/openzeppelin-contracts/certora/reports/2021-10.pdf b/lib/openzeppelin-contracts/certora/reports/2021-10.pdf new file mode 100644 index 0000000000000000000000000000000000000000..22df9c61e6a9f74b29f90b6e36bd3d04f99756f5 GIT binary patch literal 92882 zcmbTe1yo$kwl#`tfW|#EP9V6uI|O%kcXyZI?he5e#%7W})3tcirxZ{!N&b1b_Rs6_QNzEj&Q;b@;j6ygSO<%Cel 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b/lib/openzeppelin-contracts/certora/scripts/Governor.sh new file mode 100755 index 0000000..53ade50 --- /dev/null +++ b/lib/openzeppelin-contracts/certora/scripts/Governor.sh @@ -0,0 +1,10 @@ +make -C certora munged + +certoraRun certora/harnesses/ERC20VotesHarness.sol certora/harnesses/GovernorHarness.sol \ + --verify GovernorHarness:certora/specs/GovernorBase.spec \ + --solc solc8.0 \ + --staging shelly/forSasha \ + --optimistic_loop \ + --settings -copyLoopUnroll=4 \ + --rule voteStartBeforeVoteEnd \ + --msg "$1" diff --git a/lib/openzeppelin-contracts/certora/scripts/GovernorCountingSimple-counting.sh b/lib/openzeppelin-contracts/certora/scripts/GovernorCountingSimple-counting.sh new file mode 100644 index 0000000..9ed8fe3 --- /dev/null +++ b/lib/openzeppelin-contracts/certora/scripts/GovernorCountingSimple-counting.sh @@ -0,0 +1,10 @@ +make -C certora munged + +certoraRun certora/harnesses/ERC20VotesHarness.sol certora/harnesses/GovernorBasicHarness.sol \ + --verify GovernorBasicHarness:certora/specs/GovernorCountingSimple.spec \ + --solc solc8.2 \ + --staging shelly/forSasha \ + --optimistic_loop \ + --settings -copyLoopUnroll=4 \ + --rule hasVotedCorrelation \ + --msg "$1" diff --git a/lib/openzeppelin-contracts/certora/scripts/WizardControlFirstPriority.sh b/lib/openzeppelin-contracts/certora/scripts/WizardControlFirstPriority.sh new file mode 100644 index 0000000..b815986 --- /dev/null +++ b/lib/openzeppelin-contracts/certora/scripts/WizardControlFirstPriority.sh @@ -0,0 +1,12 @@ +make -C certora munged + +certoraRun certora/harnesses/ERC20VotesHarness.sol certora/harnesses/WizardControlFirstPriority.sol \ + --link WizardControlFirstPriority:token=ERC20VotesHarness \ + --verify WizardControlFirstPriority:certora/specs/GovernorBase.spec \ + --solc solc8.2 \ + --disableLocalTypeChecking \ + --staging shelly/forSasha \ + --optimistic_loop \ + --settings -copyLoopUnroll=4 \ + --rule canVoteDuringVotingPeriod \ + --msg "$1" diff --git a/lib/openzeppelin-contracts/certora/scripts/WizardFirstTry.sh b/lib/openzeppelin-contracts/certora/scripts/WizardFirstTry.sh new file mode 100644 index 0000000..fd5a32a --- /dev/null +++ b/lib/openzeppelin-contracts/certora/scripts/WizardFirstTry.sh @@ -0,0 +1,10 @@ +make -C certora munged + +certoraRun certora/harnesses/ERC20VotesHarness.sol certora/harnesses/WizardFirstTry.sol \ + --verify WizardFirstTry:certora/specs/GovernorBase.spec \ + --solc solc8.2 \ + --staging shelly/forSasha \ + --optimistic_loop \ + --disableLocalTypeChecking \ + --settings -copyLoopUnroll=4 \ + --msg "$1" diff --git a/lib/openzeppelin-contracts/certora/scripts/sanity.sh b/lib/openzeppelin-contracts/certora/scripts/sanity.sh new file mode 100644 index 0000000..1c42bf6 --- /dev/null +++ b/lib/openzeppelin-contracts/certora/scripts/sanity.sh @@ -0,0 +1,14 @@ +make -C certora munged + +for f in certora/harnesses/Wizard*.sol +do + echo "Processing $f" + file="$(basename $f)" + echo ${file%.*} + certoraRun certora/harnesses/$file \ + --verify ${file%.*}:certora/specs/sanity.spec "$@" \ + --solc solc8.2 --staging shelly/forSasha \ + --optimistic_loop \ + --msg "checking sanity on ${file%.*}" + --settings -copyLoopUnroll=4 +done diff --git a/lib/openzeppelin-contracts/certora/scripts/verifyAll.sh b/lib/openzeppelin-contracts/certora/scripts/verifyAll.sh new file mode 100644 index 0000000..9b2f11c --- /dev/null +++ b/lib/openzeppelin-contracts/certora/scripts/verifyAll.sh @@ -0,0 +1,39 @@ +#!/bin/bash + +make -C certora munged + +for contract in certora/harnesses/Wizard*.sol; +do + for spec in certora/specs/*.spec; + do + contractFile="$(basename $contract)" + specFile="$(basename $spec)" + if [[ "${specFile%.*}" != "RulesInProgress" ]]; + then + echo "Processing ${contractFile%.*} with $specFile" + if [[ "${contractFile%.*}" = *"WizardControl"* ]]; + then + certoraRun certora/harnesses/ERC20VotesHarness.sol certora/harnesses/$contractFile \ + --link ${contractFile%.*}:token=ERC20VotesHarness \ + --verify ${contractFile%.*}:certora/specs/$specFile "$@" \ + --solc solc8.2 \ + --staging shelly/forSasha \ + --disableLocalTypeChecking \ + --optimistic_loop \ + --settings -copyLoopUnroll=4 \ + --send_only \ + --msg "checking $specFile on ${contractFile%.*}" + else + certoraRun certora/harnesses/ERC20VotesHarness.sol certora/harnesses/$contractFile \ + --verify ${contractFile%.*}:certora/specs/$specFile "$@" \ + --solc solc8.2 \ + --staging shelly/forSasha \ + --disableLocalTypeChecking \ + --optimistic_loop \ + --settings -copyLoopUnroll=4 \ + --send_only \ + --msg "checking $specFile on ${contractFile%.*}" + fi + fi + done +done diff --git a/lib/openzeppelin-contracts/certora/specs/GovernorBase.spec b/lib/openzeppelin-contracts/certora/specs/GovernorBase.spec new file mode 100644 index 0000000..de728dd --- /dev/null +++ b/lib/openzeppelin-contracts/certora/specs/GovernorBase.spec @@ -0,0 +1,333 @@ +////////////////////////////////////////////////////////////////////////////// +///////////////////// Governor.sol base definitions ////////////////////////// +////////////////////////////////////////////////////////////////////////////// + +using ERC20VotesHarness as erc20votes + +methods { + proposalSnapshot(uint256) returns uint256 envfree // matches proposalVoteStart + proposalDeadline(uint256) returns uint256 envfree // matches proposalVoteEnd + hashProposal(address[],uint256[],bytes[],bytes32) returns uint256 envfree + isExecuted(uint256) returns bool envfree + isCanceled(uint256) returns bool envfree + execute(address[], uint256[], bytes[], bytes32) returns uint256 + hasVoted(uint256, address) returns bool + castVote(uint256, uint8) returns uint256 + updateQuorumNumerator(uint256) + queue(address[], uint256[], bytes[], bytes32) returns uint256 + + // internal functions made public in harness: + _quorumReached(uint256) returns bool + _voteSucceeded(uint256) returns bool envfree + + // function summarization + proposalThreshold() returns uint256 envfree + + getVotes(address, uint256) returns uint256 => DISPATCHER(true) + + getPastTotalSupply(uint256 t) returns uint256 => PER_CALLEE_CONSTANT + getPastVotes(address a, uint256 t) returns uint256 => PER_CALLEE_CONSTANT + + //scheduleBatch(address[],uint256[],bytes[],bytes32,bytes32,uint256) => DISPATCHER(true) + //executeBatch(address[], uint256[], bytes[], bytes32, bytes32) => DISPATCHER(true) +} + +////////////////////////////////////////////////////////////////////////////// +//////////////////////////////// Definitions ///////////////////////////////// +////////////////////////////////////////////////////////////////////////////// + + +// proposal was created - relation proved in noStartBeforeCreation +definition proposalCreated(uint256 pId) returns bool = proposalSnapshot(pId) > 0; + + +////////////////////////////////////////////////////////////////////////////// +///////////////////////////// Helper Functions /////////////////////////////// +////////////////////////////////////////////////////////////////////////////// + +function helperFunctionsWithRevert(uint256 proposalId, method f, env e) { + address[] targets; uint256[] values; bytes[] calldatas; string reason; bytes32 descriptionHash; + uint8 support; uint8 v; bytes32 r; bytes32 s; + if (f.selector == propose(address[], uint256[], bytes[], string).selector) { + uint256 result = propose@withrevert(e, targets, values, calldatas, reason); + require(result == proposalId); + } else if (f.selector == execute(address[], uint256[], bytes[], bytes32).selector) { + uint256 result = execute@withrevert(e, targets, values, calldatas, descriptionHash); + require(result == proposalId); + } else if (f.selector == castVote(uint256, uint8).selector) { + castVote@withrevert(e, proposalId, support); + } else if (f.selector == castVoteWithReason(uint256, uint8, string).selector) { + castVoteWithReason@withrevert(e, proposalId, support, reason); + } else if (f.selector == castVoteBySig(uint256, uint8,uint8, bytes32, bytes32).selector) { + castVoteBySig@withrevert(e, proposalId, support, v, r, s); + } else if (f.selector == queue(address[], uint256[], bytes[], bytes32).selector) { + queue@withrevert(e, targets, values, calldatas, descriptionHash); + } else { + calldataarg args; + f@withrevert(e, args); + } +} + +/* + ////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// + ///////////////////////////////////////////////////// State Diagram ////////////////////////////////////////////////////////// + ////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// + // // + // castVote(s)() // + // ------------- propose() ---------------------- time pass --------------- time passes ----------- // + // | No Proposal | --------> | Before Start (Delay) | --------> | Voting Period | ----------------------> | execute() | // + // ------------- ---------------------- --------------- -> Executed/Canceled ----------- // + // ------------------------------------------------------------|---------------|-------------------------|--------------> // + // t start end timelock // + // // + ////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// +*/ + + +/////////////////////////////////////////////////////////////////////////////////////// +///////////////////////////////// Global Valid States ///////////////////////////////// +/////////////////////////////////////////////////////////////////////////////////////// + + +/* + * Start and end date are either initialized (non zero) or uninitialized (zero) simultaneously + * This invariant assumes that the block number cannot be 0 at any stage of the contract cycle + * This is very safe assumption as usually the 0 block is genesis block which is uploaded with data + * by the developers and will not be valid to raise proposals (at the current way that block chain is functioning) + */ + // To use env with general preserved block disable type checking [--disableLocalTypeChecking] +invariant startAndEndDatesNonZero(uint256 pId) + proposalSnapshot(pId) != 0 <=> proposalDeadline(pId) != 0 + { preserved with (env e){ + require e.block.number > 0; + }} + + +/* + * If a proposal is canceled it must have a start and an end date + */ + // To use env with general preserved block disable type checking [--disableLocalTypeChecking] +invariant canceledImplyStartAndEndDateNonZero(uint pId) + isCanceled(pId) => proposalSnapshot(pId) != 0 + {preserved with (env e){ + require e.block.number > 0; + }} + + +/* + * If a proposal is executed it must have a start and an end date + */ + // To use env with general preserved block disable type checking [--disableLocalTypeChecking] +invariant executedImplyStartAndEndDateNonZero(uint pId) + isExecuted(pId) => proposalSnapshot(pId) != 0 + { preserved with (env e){ + requireInvariant startAndEndDatesNonZero(pId); + require e.block.number > 0; + }} + + +/* + * A proposal starting block number must be less or equal than the proposal end date + */ +invariant voteStartBeforeVoteEnd(uint256 pId) + // from < to <= because snapshot and deadline can be the same block number if delays are set to 0 + // This is possible before the integration of GovernorSettings.sol to the system. + // After integration of GovernorSettings.sol the invariant expression should be changed from <= to < + (proposalSnapshot(pId) > 0 => proposalSnapshot(pId) <= proposalDeadline(pId)) + // (proposalSnapshot(pId) > 0 => proposalSnapshot(pId) <= proposalDeadline(pId)) + { preserved { + requireInvariant startAndEndDatesNonZero(pId); + }} + + +/* + * A proposal cannot be both executed and canceled simultaneously. + */ +invariant noBothExecutedAndCanceled(uint256 pId) + !isExecuted(pId) || !isCanceled(pId) + + +/* + * A proposal could be executed only if quorum was reached and vote succeeded + */ +rule executionOnlyIfQuoromReachedAndVoteSucceeded(uint256 pId, env e, method f){ + bool isExecutedBefore = isExecuted(pId); + bool quorumReachedBefore = _quorumReached(e, pId); + bool voteSucceededBefore = _voteSucceeded(pId); + + calldataarg args; + f(e, args); + + bool isExecutedAfter = isExecuted(pId); + assert (!isExecutedBefore && isExecutedAfter) => (quorumReachedBefore && voteSucceededBefore), "quorum was changed"; +} + +/////////////////////////////////////////////////////////////////////////////////////// +////////////////////////////////// In-State Rules ///////////////////////////////////// +/////////////////////////////////////////////////////////////////////////////////////// + +//========================================== +//------------- Voting Period -------------- +//========================================== + +/* + * A user cannot vote twice + */ + // Checked for castVote only. all 3 castVote functions call _castVote, so the completeness of the verification is counted on + // the fact that the 3 functions themselves makes no changes, but rather call an internal function to execute. + // That means that we do not check those 3 functions directly, however for castVote & castVoteWithReason it is quite trivial + // to understand why this is ok. For castVoteBySig we basically assume that the signature referendum is correct without checking it. + // We could check each function separately and pass the rule, but that would have uglyfied the code with no concrete + // benefit, as it is evident that nothing is happening in the first 2 functions (calling a view function), and we do not desire to check the signature verification. +rule doubleVoting(uint256 pId, uint8 sup, method f) { + env e; + address user = e.msg.sender; + bool votedCheck = hasVoted(e, pId, user); + + castVote@withrevert(e, pId, sup); + + assert votedCheck => lastReverted, "double voting occurred"; +} + + +/////////////////////////////////////////////////////////////////////////////////////// +//////////////////////////// State Transitions Rules ////////////////////////////////// +/////////////////////////////////////////////////////////////////////////////////////// + +//=========================================== +//-------- Propose() --> End of Time -------- +//=========================================== + + +/* + * Once a proposal is created, voteStart and voteEnd are immutable + */ +rule immutableFieldsAfterProposalCreation(uint256 pId, method f) { + uint256 _voteStart = proposalSnapshot(pId); + uint256 _voteEnd = proposalDeadline(pId); + + require proposalCreated(pId); // startDate > 0 + + env e; calldataarg arg; + f(e, arg); + + uint256 voteStart_ = proposalSnapshot(pId); + uint256 voteEnd_ = proposalDeadline(pId); + assert _voteStart == voteStart_, "Start date was changed"; + assert _voteEnd == voteEnd_, "End date was changed"; +} + + +/* + * Voting cannot start at a block number prior to proposal’s creation block number + */ +rule noStartBeforeCreation(uint256 pId) { + uint256 previousStart = proposalSnapshot(pId); + // This line makes sure that we see only cases where start date is changed from 0, i.e. creation of proposal + // We proved in immutableFieldsAfterProposalCreation that once dates set for proposal, it cannot be changed + require !proposalCreated(pId); // previousStart == 0; + + env e; calldataarg args; + propose(e, args); + + uint256 newStart = proposalSnapshot(pId); + // if created, start is after current block number (creation block) + assert(newStart != previousStart => newStart >= e.block.number); +} + + +//============================================ +//--- End of Voting Period --> End of Time --- +//============================================ + + +/* + * A proposal can neither be executed nor canceled before it ends + */ + // By induction it cannot be executed nor canceled before it starts, due to voteStartBeforeVoteEnd +rule noExecuteOrCancelBeforeDeadline(uint256 pId, method f){ + require !isExecuted(pId) && !isCanceled(pId); + + env e; calldataarg args; + f(e, args); + + assert e.block.number < proposalDeadline(pId) => (!isExecuted(pId) && !isCanceled(pId)), "executed/cancelled before deadline"; +} + +//////////////////////////////////////////////////////////////////////////////// +////////////////////// Integrity Of Functions (Unit Tests) ///////////////////// +//////////////////////////////////////////////////////////////////////////////// + + +//////////////////////////////////////////////////////////////////////////////// +////////////////////////////// High Level Rules //////////////////////////////// +//////////////////////////////////////////////////////////////////////////////// + + +//////////////////////////////////////////////////////////////////////////////// +///////////////////////////// Not Categorized Yet ////////////////////////////// +//////////////////////////////////////////////////////////////////////////////// + + +/* + * All proposal specific (non-view) functions should revert if proposal is executed + */ + // In this rule we show that if a function is executed, i.e. execute() was called on the proposal ID, + // non of the proposal specific functions can make changes again. In executedOnlyAfterExecuteFunc + // we connected the executed attribute to the execute() function, showing that only execute() can + // change it, and that it will always change it. +rule allFunctionsRevertIfExecuted(method f) filtered { f -> + !f.isView && !f.isFallback + && f.selector != updateTimelock(address).selector + && f.selector != updateQuorumNumerator(uint256).selector + && f.selector != queue(address[],uint256[],bytes[],bytes32).selector + && f.selector != relay(address,uint256,bytes).selector + && f.selector != 0xb9a61961 // __acceptAdmin() +} { + env e; calldataarg args; + uint256 pId; + require(isExecuted(pId)); + requireInvariant noBothExecutedAndCanceled(pId); + requireInvariant executedImplyStartAndEndDateNonZero(pId); + + helperFunctionsWithRevert(pId, f, e); + + assert(lastReverted, "Function was not reverted"); +} + +/* + * All proposal specific (non-view) functions should revert if proposal is canceled + */ +rule allFunctionsRevertIfCanceled(method f) filtered { + f -> !f.isView && !f.isFallback + && f.selector != updateTimelock(address).selector + && f.selector != updateQuorumNumerator(uint256).selector + && f.selector != queue(address[],uint256[],bytes[],bytes32).selector + && f.selector != relay(address,uint256,bytes).selector + && f.selector != 0xb9a61961 // __acceptAdmin() +} { + env e; calldataarg args; + uint256 pId; + require(isCanceled(pId)); + requireInvariant noBothExecutedAndCanceled(pId); + requireInvariant canceledImplyStartAndEndDateNonZero(pId); + + helperFunctionsWithRevert(pId, f, e); + + assert(lastReverted, "Function was not reverted"); +} + +/* + * Proposal can be switched to executed only via execute() function + */ +rule executedOnlyAfterExecuteFunc(address[] targets, uint256[] values, bytes[] calldatas, bytes32 descriptionHash, method f) { + env e; calldataarg args; + uint256 pId; + bool executedBefore = isExecuted(pId); + require(!executedBefore); + + helperFunctionsWithRevert(pId, f, e); + + bool executedAfter = isExecuted(pId); + assert(executedAfter != executedBefore => f.selector == execute(address[], uint256[], bytes[], bytes32).selector, "isExecuted only changes in the execute method"); +} diff --git a/lib/openzeppelin-contracts/certora/specs/GovernorCountingSimple.spec b/lib/openzeppelin-contracts/certora/specs/GovernorCountingSimple.spec new file mode 100644 index 0000000..7af73be --- /dev/null +++ b/lib/openzeppelin-contracts/certora/specs/GovernorCountingSimple.spec @@ -0,0 +1,221 @@ +import "GovernorBase.spec" + +using ERC20VotesHarness as erc20votes + +methods { + ghost_sum_vote_power_by_id(uint256) returns uint256 envfree + + quorum(uint256) returns uint256 + proposalVotes(uint256) returns (uint256, uint256, uint256) envfree + + quorumNumerator() returns uint256 + _executor() returns address + + erc20votes._getPastVotes(address, uint256) returns uint256 + + getExecutor() returns address + + timelock() returns address +} + + +////////////////////////////////////////////////////////////////////////////// +///////////////////////////////// GHOSTS ///////////////////////////////////// +////////////////////////////////////////////////////////////////////////////// + + +//////////// ghosts to keep track of votes counting //////////// + +/* + * the sum of voting power of those who voted + */ +ghost sum_all_votes_power() returns uint256 { + init_state axiom sum_all_votes_power() == 0; +} + +hook Sstore ghost_sum_vote_power_by_id [KEY uint256 pId] uint256 current_power(uint256 old_power) STORAGE { + havoc sum_all_votes_power assuming sum_all_votes_power@new() == sum_all_votes_power@old() - old_power + current_power; +} + +/* + * sum of all votes casted per proposal + */ +ghost tracked_weight(uint256) returns uint256 { + init_state axiom forall uint256 p. tracked_weight(p) == 0; +} + +/* + * sum of all votes casted + */ +ghost sum_tracked_weight() returns uint256 { + init_state axiom sum_tracked_weight() == 0; +} + +/* + * getter for _proposalVotes.againstVotes + */ +ghost votesAgainst() returns uint256 { + init_state axiom votesAgainst() == 0; +} + +/* + * getter for _proposalVotes.forVotes + */ +ghost votesFor() returns uint256 { + init_state axiom votesFor() == 0; +} + +/* + * getter for _proposalVotes.abstainVotes + */ +ghost votesAbstain() returns uint256 { + init_state axiom votesAbstain() == 0; +} + +hook Sstore _proposalVotes [KEY uint256 pId].againstVotes uint256 votes(uint256 old_votes) STORAGE { + havoc tracked_weight assuming forall uint256 p.(p == pId => tracked_weight@new(p) == tracked_weight@old(p) - old_votes + votes) && + (p != pId => tracked_weight@new(p) == tracked_weight@old(p)); + havoc sum_tracked_weight assuming sum_tracked_weight@new() == sum_tracked_weight@old() - old_votes + votes; + havoc votesAgainst assuming votesAgainst@new() == votesAgainst@old() - old_votes + votes; +} + +hook Sstore _proposalVotes [KEY uint256 pId].forVotes uint256 votes(uint256 old_votes) STORAGE { + havoc tracked_weight assuming forall uint256 p.(p == pId => tracked_weight@new(p) == tracked_weight@old(p) - old_votes + votes) && + (p != pId => tracked_weight@new(p) == tracked_weight@old(p)); + havoc sum_tracked_weight assuming sum_tracked_weight@new() == sum_tracked_weight@old() - old_votes + votes; + havoc votesFor assuming votesFor@new() == votesFor@old() - old_votes + votes; +} + +hook Sstore _proposalVotes [KEY uint256 pId].abstainVotes uint256 votes(uint256 old_votes) STORAGE { + havoc tracked_weight assuming forall uint256 p.(p == pId => tracked_weight@new(p) == tracked_weight@old(p) - old_votes + votes) && + (p != pId => tracked_weight@new(p) == tracked_weight@old(p)); + havoc sum_tracked_weight assuming sum_tracked_weight@new() == sum_tracked_weight@old() - old_votes + votes; + havoc votesAbstain assuming votesAbstain@new() == votesAbstain@old() - old_votes + votes; +} + + +////////////////////////////////////////////////////////////////////////////// +////////////////////////////// INVARIANTS //////////////////////////////////// +////////////////////////////////////////////////////////////////////////////// + + +/* + * sum of all votes casted is equal to the sum of voting power of those who voted, per each proposal + */ +invariant SumOfVotesCastEqualSumOfPowerOfVotedPerProposal(uint256 pId) + tracked_weight(pId) == ghost_sum_vote_power_by_id(pId) + + +/* + * sum of all votes casted is equal to the sum of voting power of those who voted + */ +invariant SumOfVotesCastEqualSumOfPowerOfVoted() + sum_tracked_weight() == sum_all_votes_power() + + +/* +* sum of all votes casted is greater or equal to the sum of voting power of those who voted at a specific proposal +*/ +invariant OneIsNotMoreThanAll(uint256 pId) + sum_all_votes_power() >= tracked_weight(pId) + + +////////////////////////////////////////////////////////////////////////////// +///////////////////////////////// RULES ////////////////////////////////////// +////////////////////////////////////////////////////////////////////////////// + + +/* + * Only sender's voting status can be changed by execution of any cast vote function + */ +// Checked for castVote only. all 3 castVote functions call _castVote, so the completeness of the verification is counted on + // the fact that the 3 functions themselves makes no changes, but rather call an internal function to execute. + // That means that we do not check those 3 functions directly, however for castVote & castVoteWithReason it is quite trivial + // to understand why this is ok. For castVoteBySig we basically assume that the signature referendum is correct without checking it. + // We could check each function separately and pass the rule, but that would have uglyfied the code with no concrete + // benefit, as it is evident that nothing is happening in the first 2 functions (calling a view function), and we do not desire to check the signature verification. +rule noVoteForSomeoneElse(uint256 pId, uint8 sup, method f) { + env e; calldataarg args; + + address voter = e.msg.sender; + address user; + + bool hasVotedBefore_User = hasVoted(e, pId, user); + + castVote@withrevert(e, pId, sup); + require(!lastReverted); + + bool hasVotedAfter_User = hasVoted(e, pId, user); + + assert user != voter => hasVotedBefore_User == hasVotedAfter_User; +} + + +/* +* Total voting tally is monotonically non-decreasing in every operation +*/ +rule votingWeightMonotonicity(method f){ + uint256 votingWeightBefore = sum_tracked_weight(); + + env e; + calldataarg args; + f(e, args); + + uint256 votingWeightAfter = sum_tracked_weight(); + + assert votingWeightBefore <= votingWeightAfter, "Voting weight was decreased somehow"; +} + + +/* +* A change in hasVoted must be correlated with an non-decreasing of the vote supports (nondecrease because user can vote with weight 0) +*/ +rule hasVotedCorrelation(uint256 pId, method f, env e, uint256 bn) { + address acc = e.msg.sender; + + uint256 againstBefore = votesAgainst(); + uint256 forBefore = votesFor(); + uint256 abstainBefore = votesAbstain(); + + bool hasVotedBefore = hasVoted(e, pId, acc); + + helperFunctionsWithRevert(pId, f, e); + require(!lastReverted); + + uint256 againstAfter = votesAgainst(); + uint256 forAfter = votesFor(); + uint256 abstainAfter = votesAbstain(); + + bool hasVotedAfter = hasVoted(e, pId, acc); + + assert (!hasVotedBefore && hasVotedAfter) => againstBefore <= againstAfter || forBefore <= forAfter || abstainBefore <= abstainAfter, "no correlation"; +} + + +/* +* Only privileged users can execute privileged operations, e.g. change _quorumNumerator or _timelock +*/ +rule privilegedOnlyNumerator(method f, uint256 newQuorumNumerator){ + env e; + calldataarg arg; + uint256 quorumNumBefore = quorumNumerator(e); + + f(e, arg); + + uint256 quorumNumAfter = quorumNumerator(e); + address executorCheck = getExecutor(e); + + assert quorumNumBefore != quorumNumAfter => e.msg.sender == executorCheck, "non privileged user changed quorum numerator"; +} + +rule privilegedOnlyTimelock(method f, uint256 newQuorumNumerator){ + env e; + calldataarg arg; + uint256 timelockBefore = timelock(e); + + f(e, arg); + + uint256 timelockAfter = timelock(e); + + assert timelockBefore != timelockAfter => e.msg.sender == timelockBefore, "non privileged user changed timelock"; +} diff --git a/lib/openzeppelin-contracts/certora/specs/RulesInProgress.spec b/lib/openzeppelin-contracts/certora/specs/RulesInProgress.spec new file mode 100644 index 0000000..cbad333 --- /dev/null +++ b/lib/openzeppelin-contracts/certora/specs/RulesInProgress.spec @@ -0,0 +1,139 @@ +////////////////////////////////////////////////////////////////////////////// +////////////// THIS SPEC IS A RESERVE FOR NOT IN PROGRESS ////////////// +////////////////////////////////////////////////////////////////////////////// + +import "GovernorBase.spec" + +using ERC20VotesHarness as erc20votes + +methods { + ghost_sum_vote_power_by_id(uint256) returns uint256 envfree + + quorum(uint256) returns uint256 + proposalVotes(uint256) returns (uint256, uint256, uint256) envfree + + quorumNumerator() returns uint256 + _executor() returns address + + erc20votes._getPastVotes(address, uint256) returns uint256 + + getExecutor() returns address + + timelock() returns address +} + + +////////////////////////////////////////////////////////////////////////////// +///////////////////////////////// GHOSTS ///////////////////////////////////// +////////////////////////////////////////////////////////////////////////////// + + +//////////// ghosts to keep track of votes counting //////////// + +/* + * the sum of voting power of those who voted + */ +ghost sum_all_votes_power() returns uint256 { + init_state axiom sum_all_votes_power() == 0; +} + +hook Sstore ghost_sum_vote_power_by_id [KEY uint256 pId] uint256 current_power(uint256 old_power) STORAGE { + havoc sum_all_votes_power assuming sum_all_votes_power@new() == sum_all_votes_power@old() - old_power + current_power; +} + +/* + * sum of all votes casted per proposal + */ +ghost tracked_weight(uint256) returns uint256 { + init_state axiom forall uint256 p. tracked_weight(p) == 0; +} + +/* + * sum of all votes casted + */ +ghost sum_tracked_weight() returns uint256 { + init_state axiom sum_tracked_weight() == 0; +} + +/* + * getter for _proposalVotes.againstVotes + */ +ghost votesAgainst() returns uint256 { + init_state axiom votesAgainst() == 0; +} + +/* + * getter for _proposalVotes.forVotes + */ +ghost votesFor() returns uint256 { + init_state axiom votesFor() == 0; +} + +/* + * getter for _proposalVotes.abstainVotes + */ +ghost votesAbstain() returns uint256 { + init_state axiom votesAbstain() == 0; +} + +hook Sstore _proposalVotes [KEY uint256 pId].againstVotes uint256 votes(uint256 old_votes) STORAGE { + havoc tracked_weight assuming forall uint256 p.(p == pId => tracked_weight@new(p) == tracked_weight@old(p) - old_votes + votes) && + (p != pId => tracked_weight@new(p) == tracked_weight@old(p)); + havoc sum_tracked_weight assuming sum_tracked_weight@new() == sum_tracked_weight@old() - old_votes + votes; + havoc votesAgainst assuming votesAgainst@new() == votesAgainst@old() - old_votes + votes; +} + +hook Sstore _proposalVotes [KEY uint256 pId].forVotes uint256 votes(uint256 old_votes) STORAGE { + havoc tracked_weight assuming forall uint256 p.(p == pId => tracked_weight@new(p) == tracked_weight@old(p) - old_votes + votes) && + (p != pId => tracked_weight@new(p) == tracked_weight@old(p)); + havoc sum_tracked_weight assuming sum_tracked_weight@new() == sum_tracked_weight@old() - old_votes + votes; + havoc votesFor assuming votesFor@new() == votesFor@old() - old_votes + votes; +} + +hook Sstore _proposalVotes [KEY uint256 pId].abstainVotes uint256 votes(uint256 old_votes) STORAGE { + havoc tracked_weight assuming forall uint256 p.(p == pId => tracked_weight@new(p) == tracked_weight@old(p) - old_votes + votes) && + (p != pId => tracked_weight@new(p) == tracked_weight@old(p)); + havoc sum_tracked_weight assuming sum_tracked_weight@new() == sum_tracked_weight@old() - old_votes + votes; + havoc votesAbstain assuming votesAbstain@new() == votesAbstain@old() - old_votes + votes; +} + + +////////////////////////////////////////////////////////////////////////////// +////////////////////////////// INVARIANTS //////////////////////////////////// +////////////////////////////////////////////////////////////////////////////// + + + +////////////////////////////////////////////////////////////////////////////// +///////////////////////////////// RULES ////////////////////////////////////// +////////////////////////////////////////////////////////////////////////////// + + +//NOT FINISHED +/* +* the sum of voting power of those who voted is less or equal to the maximum possible votes, per each proposal +*/ +rule possibleTotalVotes(uint256 pId, uint8 sup, env e, method f) { + + // add requireinvariant for all i, j. i = i - 1 && i < j => checkpointlookup[i] < checkpointlookup[j]; + require tracked_weight(pId) <= erc20votes.getPastTotalSupply(e, proposalSnapshot(pId)); + + uint256 againstB; + uint256 forB; + uint256 absatinB; + againstB, forB, absatinB = proposalVotes(pId); + + calldataarg args; + //f(e, args); + + castVote(e, pId, sup); + + uint256 against; + uint256 for; + uint256 absatin; + against, for, absatin = proposalVotes(pId); + + uint256 ps = proposalSnapshot(pId); + + assert tracked_weight(pId) <= erc20votes.getPastTotalSupply(e, proposalSnapshot(pId)), "bla bla bla"; +} \ No newline at end of file diff --git a/lib/openzeppelin-contracts/certora/specs/sanity.spec b/lib/openzeppelin-contracts/certora/specs/sanity.spec new file mode 100644 index 0000000..e08f688 --- /dev/null +++ b/lib/openzeppelin-contracts/certora/specs/sanity.spec @@ -0,0 +1,14 @@ +/* +This rule looks for a non-reverting execution path to each method, including those overridden in the harness. +A method has such an execution path if it violates this rule. +How it works: + - If there is a non-reverting execution path, we reach the false assertion, and the sanity fails. + - If all execution paths are reverting, we never call the assertion, and the method will pass this rule vacuously. +*/ + +rule sanity(method f) { + env e; + calldataarg arg; + f(e, arg); + assert false; +} \ No newline at end of file diff --git a/lib/openzeppelin-contracts/contracts/access/AccessControl.sol b/lib/openzeppelin-contracts/contracts/access/AccessControl.sol new file mode 100644 index 0000000..386b85c --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/access/AccessControl.sol @@ -0,0 +1,247 @@ +// SPDX-License-Identifier: MIT +// OpenZeppelin Contracts (last updated v4.8.0) (access/AccessControl.sol) + +pragma solidity ^0.8.0; + +import "./IAccessControl.sol"; +import "../utils/Context.sol"; +import "../utils/Strings.sol"; +import "../utils/introspection/ERC165.sol"; + +/** + * @dev Contract module that allows children to implement role-based access + * control mechanisms. This is a lightweight version that doesn't allow enumerating role + * members except through off-chain means by accessing the contract event logs. Some + * applications may benefit from on-chain enumerability, for those cases see + * {AccessControlEnumerable}. + * + * Roles are referred to by their `bytes32` identifier. These should be exposed + * in the external API and be unique. The best way to achieve this is by + * using `public constant` hash digests: + * + * ``` + * bytes32 public constant MY_ROLE = keccak256("MY_ROLE"); + * ``` + * + * Roles can be used to represent a set of permissions. To restrict access to a + * function call, use {hasRole}: + * + * ``` + * function foo() public { + * require(hasRole(MY_ROLE, msg.sender)); + * ... + * } + * ``` + * + * Roles can be granted and revoked dynamically via the {grantRole} and + * {revokeRole} functions. Each role has an associated admin role, and only + * accounts that have a role's admin role can call {grantRole} and {revokeRole}. + * + * By default, the admin role for all roles is `DEFAULT_ADMIN_ROLE`, which means + * that only accounts with this role will be able to grant or revoke other + * roles. More complex role relationships can be created by using + * {_setRoleAdmin}. + * + * WARNING: The `DEFAULT_ADMIN_ROLE` is also its own admin: it has permission to + * grant and revoke this role. Extra precautions should be taken to secure + * accounts that have been granted it. + */ +abstract contract AccessControl is Context, IAccessControl, ERC165 { + struct RoleData { + mapping(address => bool) members; + bytes32 adminRole; + } + + mapping(bytes32 => RoleData) private _roles; + + bytes32 public constant DEFAULT_ADMIN_ROLE = 0x00; + + /** + * @dev Modifier that checks that an account has a specific role. Reverts + * with a standardized message including the required role. + * + * The format of the revert reason is given by the following regular expression: + * + * /^AccessControl: account (0x[0-9a-f]{40}) is missing role (0x[0-9a-f]{64})$/ + * + * _Available since v4.1._ + */ + modifier onlyRole(bytes32 role) { + _checkRole(role); + _; + } + + /** + * @dev See {IERC165-supportsInterface}. + */ + function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) { + return interfaceId == type(IAccessControl).interfaceId || super.supportsInterface(interfaceId); + } + + /** + * @dev Returns `true` if `account` has been granted `role`. + */ + function hasRole(bytes32 role, address account) public view virtual override returns (bool) { + return _roles[role].members[account]; + } + + /** + * @dev Revert with a standard message if `_msgSender()` is missing `role`. + * Overriding this function changes the behavior of the {onlyRole} modifier. + * + * Format of the revert message is described in {_checkRole}. + * + * _Available since v4.6._ + */ + function _checkRole(bytes32 role) internal view virtual { + _checkRole(role, _msgSender()); + } + + /** + * @dev Revert with a standard message if `account` is missing `role`. + * + * The format of the revert reason is given by the following regular expression: + * + * /^AccessControl: account (0x[0-9a-f]{40}) is missing role (0x[0-9a-f]{64})$/ + */ + function _checkRole(bytes32 role, address account) internal view virtual { + if (!hasRole(role, account)) { + revert( + string( + abi.encodePacked( + "AccessControl: account ", + Strings.toHexString(account), + " is missing role ", + Strings.toHexString(uint256(role), 32) + ) + ) + ); + } + } + + /** + * @dev Returns the admin role that controls `role`. See {grantRole} and + * {revokeRole}. + * + * To change a role's admin, use {_setRoleAdmin}. + */ + function getRoleAdmin(bytes32 role) public view virtual override returns (bytes32) { + return _roles[role].adminRole; + } + + /** + * @dev Grants `role` to `account`. + * + * If `account` had not been already granted `role`, emits a {RoleGranted} + * event. + * + * Requirements: + * + * - the caller must have ``role``'s admin role. + * + * May emit a {RoleGranted} event. + */ + function grantRole(bytes32 role, address account) public virtual override onlyRole(getRoleAdmin(role)) { + _grantRole(role, account); + } + + /** + * @dev Revokes `role` from `account`. + * + * If `account` had been granted `role`, emits a {RoleRevoked} event. + * + * Requirements: + * + * - the caller must have ``role``'s admin role. + * + * May emit a {RoleRevoked} event. + */ + function revokeRole(bytes32 role, address account) public virtual override onlyRole(getRoleAdmin(role)) { + _revokeRole(role, account); + } + + /** + * @dev Revokes `role` from the calling account. + * + * Roles are often managed via {grantRole} and {revokeRole}: this function's + * purpose is to provide a mechanism for accounts to lose their privileges + * if they are compromised (such as when a trusted device is misplaced). + * + * If the calling account had been revoked `role`, emits a {RoleRevoked} + * event. + * + * Requirements: + * + * - the caller must be `account`. + * + * May emit a {RoleRevoked} event. + */ + function renounceRole(bytes32 role, address account) public virtual override { + require(account == _msgSender(), "AccessControl: can only renounce roles for self"); + + _revokeRole(role, account); + } + + /** + * @dev Grants `role` to `account`. + * + * If `account` had not been already granted `role`, emits a {RoleGranted} + * event. Note that unlike {grantRole}, this function doesn't perform any + * checks on the calling account. + * + * May emit a {RoleGranted} event. + * + * [WARNING] + * ==== + * This function should only be called from the constructor when setting + * up the initial roles for the system. + * + * Using this function in any other way is effectively circumventing the admin + * system imposed by {AccessControl}. + * ==== + * + * NOTE: This function is deprecated in favor of {_grantRole}. + */ + function _setupRole(bytes32 role, address account) internal virtual { + _grantRole(role, account); + } + + /** + * @dev Sets `adminRole` as ``role``'s admin role. + * + * Emits a {RoleAdminChanged} event. + */ + function _setRoleAdmin(bytes32 role, bytes32 adminRole) internal virtual { + bytes32 previousAdminRole = getRoleAdmin(role); + _roles[role].adminRole = adminRole; + emit RoleAdminChanged(role, previousAdminRole, adminRole); + } + + /** + * @dev Grants `role` to `account`. + * + * Internal function without access restriction. + * + * May emit a {RoleGranted} event. + */ + function _grantRole(bytes32 role, address account) internal virtual { + if (!hasRole(role, account)) { + _roles[role].members[account] = true; + emit RoleGranted(role, account, _msgSender()); + } + } + + /** + * @dev Revokes `role` from `account`. + * + * Internal function without access restriction. + * + * May emit a {RoleRevoked} event. + */ + function _revokeRole(bytes32 role, address account) internal virtual { + if (hasRole(role, account)) { + _roles[role].members[account] = false; + emit RoleRevoked(role, account, _msgSender()); + } + } +} diff --git a/lib/openzeppelin-contracts/contracts/access/AccessControlCrossChain.sol b/lib/openzeppelin-contracts/contracts/access/AccessControlCrossChain.sol new file mode 100644 index 0000000..95be509 --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/access/AccessControlCrossChain.sol @@ -0,0 +1,45 @@ +// SPDX-License-Identifier: MIT +// OpenZeppelin Contracts (last updated v4.6.0) (access/AccessControlCrossChain.sol) + +pragma solidity ^0.8.4; + +import "./AccessControl.sol"; +import "../crosschain/CrossChainEnabled.sol"; + +/** + * @dev An extension to {AccessControl} with support for cross-chain access management. + * For each role, is extension implements an equivalent "aliased" role that is used for + * restricting calls originating from other chains. + * + * For example, if a function `myFunction` is protected by `onlyRole(SOME_ROLE)`, and + * if an address `x` has role `SOME_ROLE`, it would be able to call `myFunction` directly. + * A wallet or contract at the same address on another chain would however not be able + * to call this function. In order to do so, it would require to have the role + * `_crossChainRoleAlias(SOME_ROLE)`. + * + * This aliasing is required to protect against multiple contracts living at the same + * address on different chains but controlled by conflicting entities. + * + * _Available since v4.6._ + */ +abstract contract AccessControlCrossChain is AccessControl, CrossChainEnabled { + bytes32 public constant CROSSCHAIN_ALIAS = keccak256("CROSSCHAIN_ALIAS"); + + /** + * @dev See {AccessControl-_checkRole}. + */ + function _checkRole(bytes32 role) internal view virtual override { + if (_isCrossChain()) { + _checkRole(_crossChainRoleAlias(role), _crossChainSender()); + } else { + super._checkRole(role); + } + } + + /** + * @dev Returns the aliased role corresponding to `role`. + */ + function _crossChainRoleAlias(bytes32 role) internal pure virtual returns (bytes32) { + return role ^ CROSSCHAIN_ALIAS; + } +} diff --git a/lib/openzeppelin-contracts/contracts/access/AccessControlEnumerable.sol b/lib/openzeppelin-contracts/contracts/access/AccessControlEnumerable.sol new file mode 100644 index 0000000..354e1be --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/access/AccessControlEnumerable.sol @@ -0,0 +1,64 @@ +// SPDX-License-Identifier: MIT +// OpenZeppelin Contracts (last updated v4.5.0) (access/AccessControlEnumerable.sol) + +pragma solidity ^0.8.0; + +import "./IAccessControlEnumerable.sol"; +import "./AccessControl.sol"; +import "../utils/structs/EnumerableSet.sol"; + +/** + * @dev Extension of {AccessControl} that allows enumerating the members of each role. + */ +abstract contract AccessControlEnumerable is IAccessControlEnumerable, AccessControl { + using EnumerableSet for EnumerableSet.AddressSet; + + mapping(bytes32 => EnumerableSet.AddressSet) private _roleMembers; + + /** + * @dev See {IERC165-supportsInterface}. + */ + function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) { + return interfaceId == type(IAccessControlEnumerable).interfaceId || super.supportsInterface(interfaceId); + } + + /** + * @dev Returns one of the accounts that have `role`. `index` must be a + * value between 0 and {getRoleMemberCount}, non-inclusive. + * + * Role bearers are not sorted in any particular way, and their ordering may + * change at any point. + * + * WARNING: When using {getRoleMember} and {getRoleMemberCount}, make sure + * you perform all queries on the same block. See the following + * https://forum.openzeppelin.com/t/iterating-over-elements-on-enumerableset-in-openzeppelin-contracts/2296[forum post] + * for more information. + */ + function getRoleMember(bytes32 role, uint256 index) public view virtual override returns (address) { + return _roleMembers[role].at(index); + } + + /** + * @dev Returns the number of accounts that have `role`. Can be used + * together with {getRoleMember} to enumerate all bearers of a role. + */ + function getRoleMemberCount(bytes32 role) public view virtual override returns (uint256) { + return _roleMembers[role].length(); + } + + /** + * @dev Overload {_grantRole} to track enumerable memberships + */ + function _grantRole(bytes32 role, address account) internal virtual override { + super._grantRole(role, account); + _roleMembers[role].add(account); + } + + /** + * @dev Overload {_revokeRole} to track enumerable memberships + */ + function _revokeRole(bytes32 role, address account) internal virtual override { + super._revokeRole(role, account); + _roleMembers[role].remove(account); + } +} diff --git a/lib/openzeppelin-contracts/contracts/access/IAccessControl.sol b/lib/openzeppelin-contracts/contracts/access/IAccessControl.sol new file mode 100644 index 0000000..f773ecc --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/access/IAccessControl.sol @@ -0,0 +1,88 @@ +// SPDX-License-Identifier: MIT +// OpenZeppelin Contracts v4.4.1 (access/IAccessControl.sol) + +pragma solidity ^0.8.0; + +/** + * @dev External interface of AccessControl declared to support ERC165 detection. + */ +interface IAccessControl { + /** + * @dev Emitted when `newAdminRole` is set as ``role``'s admin role, replacing `previousAdminRole` + * + * `DEFAULT_ADMIN_ROLE` is the starting admin for all roles, despite + * {RoleAdminChanged} not being emitted signaling this. + * + * _Available since v3.1._ + */ + event RoleAdminChanged(bytes32 indexed role, bytes32 indexed previousAdminRole, bytes32 indexed newAdminRole); + + /** + * @dev Emitted when `account` is granted `role`. + * + * `sender` is the account that originated the contract call, an admin role + * bearer except when using {AccessControl-_setupRole}. + */ + event RoleGranted(bytes32 indexed role, address indexed account, address indexed sender); + + /** + * @dev Emitted when `account` is revoked `role`. + * + * `sender` is the account that originated the contract call: + * - if using `revokeRole`, it is the admin role bearer + * - if using `renounceRole`, it is the role bearer (i.e. `account`) + */ + event RoleRevoked(bytes32 indexed role, address indexed account, address indexed sender); + + /** + * @dev Returns `true` if `account` has been granted `role`. + */ + function hasRole(bytes32 role, address account) external view returns (bool); + + /** + * @dev Returns the admin role that controls `role`. See {grantRole} and + * {revokeRole}. + * + * To change a role's admin, use {AccessControl-_setRoleAdmin}. + */ + function getRoleAdmin(bytes32 role) external view returns (bytes32); + + /** + * @dev Grants `role` to `account`. + * + * If `account` had not been already granted `role`, emits a {RoleGranted} + * event. + * + * Requirements: + * + * - the caller must have ``role``'s admin role. + */ + function grantRole(bytes32 role, address account) external; + + /** + * @dev Revokes `role` from `account`. + * + * If `account` had been granted `role`, emits a {RoleRevoked} event. + * + * Requirements: + * + * - the caller must have ``role``'s admin role. + */ + function revokeRole(bytes32 role, address account) external; + + /** + * @dev Revokes `role` from the calling account. + * + * Roles are often managed via {grantRole} and {revokeRole}: this function's + * purpose is to provide a mechanism for accounts to lose their privileges + * if they are compromised (such as when a trusted device is misplaced). + * + * If the calling account had been granted `role`, emits a {RoleRevoked} + * event. + * + * Requirements: + * + * - the caller must be `account`. + */ + function renounceRole(bytes32 role, address account) external; +} diff --git a/lib/openzeppelin-contracts/contracts/access/IAccessControlEnumerable.sol b/lib/openzeppelin-contracts/contracts/access/IAccessControlEnumerable.sol new file mode 100644 index 0000000..61aaf57 --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/access/IAccessControlEnumerable.sol @@ -0,0 +1,31 @@ +// SPDX-License-Identifier: MIT +// OpenZeppelin Contracts v4.4.1 (access/IAccessControlEnumerable.sol) + +pragma solidity ^0.8.0; + +import "./IAccessControl.sol"; + +/** + * @dev External interface of AccessControlEnumerable declared to support ERC165 detection. + */ +interface IAccessControlEnumerable is IAccessControl { + /** + * @dev Returns one of the accounts that have `role`. `index` must be a + * value between 0 and {getRoleMemberCount}, non-inclusive. + * + * Role bearers are not sorted in any particular way, and their ordering may + * change at any point. + * + * WARNING: When using {getRoleMember} and {getRoleMemberCount}, make sure + * you perform all queries on the same block. See the following + * https://forum.openzeppelin.com/t/iterating-over-elements-on-enumerableset-in-openzeppelin-contracts/2296[forum post] + * for more information. + */ + function getRoleMember(bytes32 role, uint256 index) external view returns (address); + + /** + * @dev Returns the number of accounts that have `role`. Can be used + * together with {getRoleMember} to enumerate all bearers of a role. + */ + function getRoleMemberCount(bytes32 role) external view returns (uint256); +} diff --git a/lib/openzeppelin-contracts/contracts/access/Ownable.sol b/lib/openzeppelin-contracts/contracts/access/Ownable.sol new file mode 100644 index 0000000..6d4e866 --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/access/Ownable.sol @@ -0,0 +1,83 @@ +// SPDX-License-Identifier: MIT +// OpenZeppelin Contracts (last updated v4.7.0) (access/Ownable.sol) + +pragma solidity ^0.8.0; + +import "../utils/Context.sol"; + +/** + * @dev Contract module which provides a basic access control mechanism, where + * there is an account (an owner) that can be granted exclusive access to + * specific functions. + * + * By default, the owner account will be the one that deploys the contract. This + * can later be changed with {transferOwnership}. + * + * This module is used through inheritance. It will make available the modifier + * `onlyOwner`, which can be applied to your functions to restrict their use to + * the owner. + */ +abstract contract Ownable is Context { + address private _owner; + + event OwnershipTransferred(address indexed previousOwner, address indexed newOwner); + + /** + * @dev Initializes the contract setting the deployer as the initial owner. + */ + constructor() { + _transferOwnership(_msgSender()); + } + + /** + * @dev Throws if called by any account other than the owner. + */ + modifier onlyOwner() { + _checkOwner(); + _; + } + + /** + * @dev Returns the address of the current owner. + */ + function owner() public view virtual returns (address) { + return _owner; + } + + /** + * @dev Throws if the sender is not the owner. + */ + function _checkOwner() internal view virtual { + require(owner() == _msgSender(), "Ownable: caller is not the owner"); + } + + /** + * @dev Leaves the contract without owner. It will not be possible to call + * `onlyOwner` functions anymore. Can only be called by the current owner. + * + * NOTE: Renouncing ownership will leave the contract without an owner, + * thereby removing any functionality that is only available to the owner. + */ + function renounceOwnership() public virtual onlyOwner { + _transferOwnership(address(0)); + } + + /** + * @dev Transfers ownership of the contract to a new account (`newOwner`). + * Can only be called by the current owner. + */ + function transferOwnership(address newOwner) public virtual onlyOwner { + require(newOwner != address(0), "Ownable: new owner is the zero address"); + _transferOwnership(newOwner); + } + + /** + * @dev Transfers ownership of the contract to a new account (`newOwner`). + * Internal function without access restriction. + */ + function _transferOwnership(address newOwner) internal virtual { + address oldOwner = _owner; + _owner = newOwner; + emit OwnershipTransferred(oldOwner, newOwner); + } +} diff --git a/lib/openzeppelin-contracts/contracts/access/Ownable2Step.sol b/lib/openzeppelin-contracts/contracts/access/Ownable2Step.sol new file mode 100644 index 0000000..f5a3d80 --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/access/Ownable2Step.sol @@ -0,0 +1,57 @@ +// SPDX-License-Identifier: MIT +// OpenZeppelin Contracts (last updated v4.8.0) (access/Ownable2Step.sol) + +pragma solidity ^0.8.0; + +import "./Ownable.sol"; + +/** + * @dev Contract module which provides access control mechanism, where + * there is an account (an owner) that can be granted exclusive access to + * specific functions. + * + * By default, the owner account will be the one that deploys the contract. This + * can later be changed with {transferOwnership} and {acceptOwnership}. + * + * This module is used through inheritance. It will make available all functions + * from parent (Ownable). + */ +abstract contract Ownable2Step is Ownable { + address private _pendingOwner; + + event OwnershipTransferStarted(address indexed previousOwner, address indexed newOwner); + + /** + * @dev Returns the address of the pending owner. + */ + function pendingOwner() public view virtual returns (address) { + return _pendingOwner; + } + + /** + * @dev Starts the ownership transfer of the contract to a new account. Replaces the pending transfer if there is one. + * Can only be called by the current owner. + */ + function transferOwnership(address newOwner) public virtual override onlyOwner { + _pendingOwner = newOwner; + emit OwnershipTransferStarted(owner(), newOwner); + } + + /** + * @dev Transfers ownership of the contract to a new account (`newOwner`) and deletes any pending owner. + * Internal function without access restriction. + */ + function _transferOwnership(address newOwner) internal virtual override { + delete _pendingOwner; + super._transferOwnership(newOwner); + } + + /** + * @dev The new owner accepts the ownership transfer. + */ + function acceptOwnership() public virtual { + address sender = _msgSender(); + require(pendingOwner() == sender, "Ownable2Step: caller is not the new owner"); + _transferOwnership(sender); + } +} diff --git a/lib/openzeppelin-contracts/contracts/access/README.adoc b/lib/openzeppelin-contracts/contracts/access/README.adoc new file mode 100644 index 0000000..888d0e9 --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/access/README.adoc @@ -0,0 +1,25 @@ += Access Control + +[.readme-notice] +NOTE: This document is better viewed at https://docs.openzeppelin.com/contracts/api/access + +This directory provides ways to restrict who can access the functions of a contract or when they can do it. + +- {AccessControl} provides a general role based access control mechanism. Multiple hierarchical roles can be created and assigned each to multiple accounts. +- {Ownable} is a simpler mechanism with a single owner "role" that can be assigned to a single account. This simpler mechanism can be useful for quick tests but projects with production concerns are likely to outgrow it. + +== Authorization + +{{Ownable}} + +{{Ownable2Step}} + +{{IAccessControl}} + +{{AccessControl}} + +{{AccessControlCrossChain}} + +{{IAccessControlEnumerable}} + +{{AccessControlEnumerable}} diff --git a/lib/openzeppelin-contracts/contracts/crosschain/CrossChainEnabled.sol b/lib/openzeppelin-contracts/contracts/crosschain/CrossChainEnabled.sol new file mode 100644 index 0000000..4c9b9e5 --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/crosschain/CrossChainEnabled.sol @@ -0,0 +1,54 @@ +// SPDX-License-Identifier: MIT +// OpenZeppelin Contracts (last updated v4.6.0) (crosschain/CrossChainEnabled.sol) + +pragma solidity ^0.8.4; + +import "./errors.sol"; + +/** + * @dev Provides information for building cross-chain aware contracts. This + * abstract contract provides accessors and modifiers to control the execution + * flow when receiving cross-chain messages. + * + * Actual implementations of cross-chain aware contracts, which are based on + * this abstraction, will have to inherit from a bridge-specific + * specialization. Such specializations are provided under + * `crosschain//CrossChainEnabled.sol`. + * + * _Available since v4.6._ + */ +abstract contract CrossChainEnabled { + /** + * @dev Throws if the current function call is not the result of a + * cross-chain execution. + */ + modifier onlyCrossChain() { + if (!_isCrossChain()) revert NotCrossChainCall(); + _; + } + + /** + * @dev Throws if the current function call is not the result of a + * cross-chain execution initiated by `account`. + */ + modifier onlyCrossChainSender(address expected) { + address actual = _crossChainSender(); + if (expected != actual) revert InvalidCrossChainSender(actual, expected); + _; + } + + /** + * @dev Returns whether the current function call is the result of a + * cross-chain message. + */ + function _isCrossChain() internal view virtual returns (bool); + + /** + * @dev Returns the address of the sender of the cross-chain message that + * triggered the current function call. + * + * IMPORTANT: Should revert with `NotCrossChainCall` if the current function + * call is not the result of a cross-chain message. + */ + function _crossChainSender() internal view virtual returns (address); +} diff --git a/lib/openzeppelin-contracts/contracts/crosschain/README.adoc b/lib/openzeppelin-contracts/contracts/crosschain/README.adoc new file mode 100644 index 0000000..266b153 --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/crosschain/README.adoc @@ -0,0 +1,34 @@ += Cross Chain Awareness + +[.readme-notice] +NOTE: This document is better viewed at https://docs.openzeppelin.com/contracts/api/crosschain + +This directory provides building blocks to improve cross-chain awareness of smart contracts. + +- {CrossChainEnabled} is an abstraction that contains accessors and modifiers to control the execution flow when receiving cross-chain messages. + +== CrossChainEnabled specializations + +The following specializations of {CrossChainEnabled} provide implementations of the {CrossChainEnabled} abstraction for specific bridges. This can be used to complex cross-chain aware components such as {AccessControlCrossChain}. + +{{CrossChainEnabledAMB}} + +{{CrossChainEnabledArbitrumL1}} + +{{CrossChainEnabledArbitrumL2}} + +{{CrossChainEnabledOptimism}} + +{{CrossChainEnabledPolygonChild}} + +== Libraries for cross-chain + +In addition to the {CrossChainEnabled} abstraction, cross-chain awareness is also available through libraries. These libraries can be used to build complex designs such as contracts with the ability to interact with multiple bridges. + +{{LibAMB}} + +{{LibArbitrumL1}} + +{{LibArbitrumL2}} + +{{LibOptimism}} diff --git a/lib/openzeppelin-contracts/contracts/crosschain/amb/CrossChainEnabledAMB.sol b/lib/openzeppelin-contracts/contracts/crosschain/amb/CrossChainEnabledAMB.sol new file mode 100644 index 0000000..e69355d --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/crosschain/amb/CrossChainEnabledAMB.sol @@ -0,0 +1,49 @@ +// SPDX-License-Identifier: MIT +// OpenZeppelin Contracts (last updated v4.7.0) (crosschain/amb/CrossChainEnabledAMB.sol) + +pragma solidity ^0.8.4; + +import "../CrossChainEnabled.sol"; +import "./LibAMB.sol"; + +/** + * @dev https://docs.tokenbridge.net/amb-bridge/about-amb-bridge[AMB] + * specialization or the {CrossChainEnabled} abstraction. + * + * As of february 2020, AMB bridges are available between the following chains: + * + * - https://docs.tokenbridge.net/eth-xdai-amb-bridge/about-the-eth-xdai-amb[ETH ⇌ xDai] + * - https://docs.tokenbridge.net/eth-qdai-bridge/about-the-eth-qdai-amb[ETH ⇌ qDai] + * - https://docs.tokenbridge.net/eth-etc-amb-bridge/about-the-eth-etc-amb[ETH ⇌ ETC] + * - https://docs.tokenbridge.net/eth-bsc-amb/about-the-eth-bsc-amb[ETH ⇌ BSC] + * - https://docs.tokenbridge.net/eth-poa-amb-bridge/about-the-eth-poa-amb[ETH ⇌ POA] + * - https://docs.tokenbridge.net/bsc-xdai-amb/about-the-bsc-xdai-amb[BSC ⇌ xDai] + * - https://docs.tokenbridge.net/poa-xdai-amb/about-the-poa-xdai-amb[POA ⇌ xDai] + * - https://docs.tokenbridge.net/rinkeby-xdai-amb-bridge/about-the-rinkeby-xdai-amb[Rinkeby ⇌ xDai] + * - https://docs.tokenbridge.net/kovan-sokol-amb-bridge/about-the-kovan-sokol-amb[Kovan ⇌ Sokol] + * + * _Available since v4.6._ + */ +contract CrossChainEnabledAMB is CrossChainEnabled { + /// @custom:oz-upgrades-unsafe-allow state-variable-immutable + address private immutable _bridge; + + /// @custom:oz-upgrades-unsafe-allow constructor + constructor(address bridge) { + _bridge = bridge; + } + + /** + * @dev see {CrossChainEnabled-_isCrossChain} + */ + function _isCrossChain() internal view virtual override returns (bool) { + return LibAMB.isCrossChain(_bridge); + } + + /** + * @dev see {CrossChainEnabled-_crossChainSender} + */ + function _crossChainSender() internal view virtual override onlyCrossChain returns (address) { + return LibAMB.crossChainSender(_bridge); + } +} diff --git a/lib/openzeppelin-contracts/contracts/crosschain/amb/LibAMB.sol b/lib/openzeppelin-contracts/contracts/crosschain/amb/LibAMB.sol new file mode 100644 index 0000000..aef9c43 --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/crosschain/amb/LibAMB.sol @@ -0,0 +1,35 @@ +// SPDX-License-Identifier: MIT +// OpenZeppelin Contracts (last updated v4.7.0) (crosschain/amb/LibAMB.sol) + +pragma solidity ^0.8.4; + +import {IAMB as AMB_Bridge} from "../../vendor/amb/IAMB.sol"; +import "../errors.sol"; + +/** + * @dev Primitives for cross-chain aware contracts using the + * https://docs.tokenbridge.net/amb-bridge/about-amb-bridge[AMB] + * family of bridges. + */ +library LibAMB { + /** + * @dev Returns whether the current function call is the result of a + * cross-chain message relayed by `bridge`. + */ + function isCrossChain(address bridge) internal view returns (bool) { + return msg.sender == bridge; + } + + /** + * @dev Returns the address of the sender that triggered the current + * cross-chain message through `bridge`. + * + * NOTE: {isCrossChain} should be checked before trying to recover the + * sender, as it will revert with `NotCrossChainCall` if the current + * function call is not the result of a cross-chain message. + */ + function crossChainSender(address bridge) internal view returns (address) { + if (!isCrossChain(bridge)) revert NotCrossChainCall(); + return AMB_Bridge(bridge).messageSender(); + } +} diff --git a/lib/openzeppelin-contracts/contracts/crosschain/arbitrum/CrossChainEnabledArbitrumL1.sol b/lib/openzeppelin-contracts/contracts/crosschain/arbitrum/CrossChainEnabledArbitrumL1.sol new file mode 100644 index 0000000..5068da3 --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/crosschain/arbitrum/CrossChainEnabledArbitrumL1.sol @@ -0,0 +1,44 @@ +// SPDX-License-Identifier: MIT +// OpenZeppelin Contracts (last updated v4.7.0) (crosschain/arbitrum/CrossChainEnabledArbitrumL1.sol) + +pragma solidity ^0.8.4; + +import "../CrossChainEnabled.sol"; +import "./LibArbitrumL1.sol"; + +/** + * @dev https://arbitrum.io/[Arbitrum] specialization or the + * {CrossChainEnabled} abstraction the L1 side (mainnet). + * + * This version should only be deployed on L1 to process cross-chain messages + * originating from L2. For the other side, use {CrossChainEnabledArbitrumL2}. + * + * The bridge contract is provided and maintained by the arbitrum team. You can + * find the address of this contract on the rinkeby testnet in + * https://developer.offchainlabs.com/docs/useful_addresses[Arbitrum's developer documentation]. + * + * _Available since v4.6._ + */ +abstract contract CrossChainEnabledArbitrumL1 is CrossChainEnabled { + /// @custom:oz-upgrades-unsafe-allow state-variable-immutable + address private immutable _bridge; + + /// @custom:oz-upgrades-unsafe-allow constructor + constructor(address bridge) { + _bridge = bridge; + } + + /** + * @dev see {CrossChainEnabled-_isCrossChain} + */ + function _isCrossChain() internal view virtual override returns (bool) { + return LibArbitrumL1.isCrossChain(_bridge); + } + + /** + * @dev see {CrossChainEnabled-_crossChainSender} + */ + function _crossChainSender() internal view virtual override onlyCrossChain returns (address) { + return LibArbitrumL1.crossChainSender(_bridge); + } +} diff --git a/lib/openzeppelin-contracts/contracts/crosschain/arbitrum/CrossChainEnabledArbitrumL2.sol b/lib/openzeppelin-contracts/contracts/crosschain/arbitrum/CrossChainEnabledArbitrumL2.sol new file mode 100644 index 0000000..e85993d --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/crosschain/arbitrum/CrossChainEnabledArbitrumL2.sol @@ -0,0 +1,40 @@ +// SPDX-License-Identifier: MIT +// OpenZeppelin Contracts (last updated v4.8.0) (crosschain/arbitrum/CrossChainEnabledArbitrumL2.sol) + +pragma solidity ^0.8.4; + +import "../CrossChainEnabled.sol"; +import "./LibArbitrumL2.sol"; + +/** + * @dev https://arbitrum.io/[Arbitrum] specialization or the + * {CrossChainEnabled} abstraction the L2 side (arbitrum). + * + * This version should only be deployed on L2 to process cross-chain messages + * originating from L1. For the other side, use {CrossChainEnabledArbitrumL1}. + * + * Arbitrum L2 includes the `ArbSys` contract at a fixed address. Therefore, + * this specialization of {CrossChainEnabled} does not include a constructor. + * + * _Available since v4.6._ + * + * WARNING: There is currently a bug in Arbitrum that causes this contract to + * fail to detect cross-chain calls when deployed behind a proxy. This will be + * fixed when the network is upgraded to Arbitrum Nitro, currently scheduled for + * August 31st 2022. + */ +abstract contract CrossChainEnabledArbitrumL2 is CrossChainEnabled { + /** + * @dev see {CrossChainEnabled-_isCrossChain} + */ + function _isCrossChain() internal view virtual override returns (bool) { + return LibArbitrumL2.isCrossChain(LibArbitrumL2.ARBSYS); + } + + /** + * @dev see {CrossChainEnabled-_crossChainSender} + */ + function _crossChainSender() internal view virtual override onlyCrossChain returns (address) { + return LibArbitrumL2.crossChainSender(LibArbitrumL2.ARBSYS); + } +} diff --git a/lib/openzeppelin-contracts/contracts/crosschain/arbitrum/LibArbitrumL1.sol b/lib/openzeppelin-contracts/contracts/crosschain/arbitrum/LibArbitrumL1.sol new file mode 100644 index 0000000..be7236b --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/crosschain/arbitrum/LibArbitrumL1.sol @@ -0,0 +1,42 @@ +// SPDX-License-Identifier: MIT +// OpenZeppelin Contracts (last updated v4.8.0) (crosschain/arbitrum/LibArbitrumL1.sol) + +pragma solidity ^0.8.4; + +import {IBridge as ArbitrumL1_Bridge} from "../../vendor/arbitrum/IBridge.sol"; +import {IOutbox as ArbitrumL1_Outbox} from "../../vendor/arbitrum/IOutbox.sol"; +import "../errors.sol"; + +/** + * @dev Primitives for cross-chain aware contracts for + * https://arbitrum.io/[Arbitrum]. + * + * This version should only be used on L1 to process cross-chain messages + * originating from L2. For the other side, use {LibArbitrumL2}. + */ +library LibArbitrumL1 { + /** + * @dev Returns whether the current function call is the result of a + * cross-chain message relayed by the `bridge`. + */ + function isCrossChain(address bridge) internal view returns (bool) { + return msg.sender == bridge; + } + + /** + * @dev Returns the address of the sender that triggered the current + * cross-chain message through the `bridge`. + * + * NOTE: {isCrossChain} should be checked before trying to recover the + * sender, as it will revert with `NotCrossChainCall` if the current + * function call is not the result of a cross-chain message. + */ + function crossChainSender(address bridge) internal view returns (address) { + if (!isCrossChain(bridge)) revert NotCrossChainCall(); + + address sender = ArbitrumL1_Outbox(ArbitrumL1_Bridge(bridge).activeOutbox()).l2ToL1Sender(); + require(sender != address(0), "LibArbitrumL1: system messages without sender"); + + return sender; + } +} diff --git a/lib/openzeppelin-contracts/contracts/crosschain/arbitrum/LibArbitrumL2.sol b/lib/openzeppelin-contracts/contracts/crosschain/arbitrum/LibArbitrumL2.sol new file mode 100644 index 0000000..715a387 --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/crosschain/arbitrum/LibArbitrumL2.sol @@ -0,0 +1,45 @@ +// SPDX-License-Identifier: MIT +// OpenZeppelin Contracts (last updated v4.8.0) (crosschain/arbitrum/LibArbitrumL2.sol) + +pragma solidity ^0.8.4; + +import {IArbSys as ArbitrumL2_Bridge} from "../../vendor/arbitrum/IArbSys.sol"; +import "../errors.sol"; + +/** + * @dev Primitives for cross-chain aware contracts for + * https://arbitrum.io/[Arbitrum]. + * + * This version should only be used on L2 to process cross-chain messages + * originating from L1. For the other side, use {LibArbitrumL1}. + * + * WARNING: There is currently a bug in Arbitrum that causes this contract to + * fail to detect cross-chain calls when deployed behind a proxy. This will be + * fixed when the network is upgraded to Arbitrum Nitro, currently scheduled for + * August 31st 2022. + */ +library LibArbitrumL2 { + /** + * @dev Returns whether the current function call is the result of a + * cross-chain message relayed by `arbsys`. + */ + address public constant ARBSYS = 0x0000000000000000000000000000000000000064; + + function isCrossChain(address arbsys) internal view returns (bool) { + return ArbitrumL2_Bridge(arbsys).wasMyCallersAddressAliased(); + } + + /** + * @dev Returns the address of the sender that triggered the current + * cross-chain message through `arbsys`. + * + * NOTE: {isCrossChain} should be checked before trying to recover the + * sender, as it will revert with `NotCrossChainCall` if the current + * function call is not the result of a cross-chain message. + */ + function crossChainSender(address arbsys) internal view returns (address) { + if (!isCrossChain(arbsys)) revert NotCrossChainCall(); + + return ArbitrumL2_Bridge(arbsys).myCallersAddressWithoutAliasing(); + } +} diff --git a/lib/openzeppelin-contracts/contracts/crosschain/errors.sol b/lib/openzeppelin-contracts/contracts/crosschain/errors.sol new file mode 100644 index 0000000..004460e --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/crosschain/errors.sol @@ -0,0 +1,7 @@ +// SPDX-License-Identifier: MIT +// OpenZeppelin Contracts (last updated v4.6.0) (crosschain/errors.sol) + +pragma solidity ^0.8.4; + +error NotCrossChainCall(); +error InvalidCrossChainSender(address actual, address expected); diff --git a/lib/openzeppelin-contracts/contracts/crosschain/optimism/CrossChainEnabledOptimism.sol b/lib/openzeppelin-contracts/contracts/crosschain/optimism/CrossChainEnabledOptimism.sol new file mode 100644 index 0000000..1005864 --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/crosschain/optimism/CrossChainEnabledOptimism.sol @@ -0,0 +1,41 @@ +// SPDX-License-Identifier: MIT +// OpenZeppelin Contracts (last updated v4.7.0) (crosschain/optimism/CrossChainEnabledOptimism.sol) + +pragma solidity ^0.8.4; + +import "../CrossChainEnabled.sol"; +import "./LibOptimism.sol"; + +/** + * @dev https://www.optimism.io/[Optimism] specialization or the + * {CrossChainEnabled} abstraction. + * + * The messenger (`CrossDomainMessenger`) contract is provided and maintained by + * the optimism team. You can find the address of this contract on mainnet and + * kovan in the https://github.com/ethereum-optimism/optimism/tree/develop/packages/contracts/deployments[deployments section of Optimism monorepo]. + * + * _Available since v4.6._ + */ +abstract contract CrossChainEnabledOptimism is CrossChainEnabled { + /// @custom:oz-upgrades-unsafe-allow state-variable-immutable + address private immutable _messenger; + + /// @custom:oz-upgrades-unsafe-allow constructor + constructor(address messenger) { + _messenger = messenger; + } + + /** + * @dev see {CrossChainEnabled-_isCrossChain} + */ + function _isCrossChain() internal view virtual override returns (bool) { + return LibOptimism.isCrossChain(_messenger); + } + + /** + * @dev see {CrossChainEnabled-_crossChainSender} + */ + function _crossChainSender() internal view virtual override onlyCrossChain returns (address) { + return LibOptimism.crossChainSender(_messenger); + } +} diff --git a/lib/openzeppelin-contracts/contracts/crosschain/optimism/LibOptimism.sol b/lib/openzeppelin-contracts/contracts/crosschain/optimism/LibOptimism.sol new file mode 100644 index 0000000..d963ade --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/crosschain/optimism/LibOptimism.sol @@ -0,0 +1,36 @@ +// SPDX-License-Identifier: MIT +// OpenZeppelin Contracts (last updated v4.7.0) (crosschain/optimism/LibOptimism.sol) + +pragma solidity ^0.8.4; + +import {ICrossDomainMessenger as Optimism_Bridge} from "../../vendor/optimism/ICrossDomainMessenger.sol"; +import "../errors.sol"; + +/** + * @dev Primitives for cross-chain aware contracts for https://www.optimism.io/[Optimism]. + * See the https://community.optimism.io/docs/developers/bridge/messaging/#accessing-msg-sender[documentation] + * for the functionality used here. + */ +library LibOptimism { + /** + * @dev Returns whether the current function call is the result of a + * cross-chain message relayed by `messenger`. + */ + function isCrossChain(address messenger) internal view returns (bool) { + return msg.sender == messenger; + } + + /** + * @dev Returns the address of the sender that triggered the current + * cross-chain message through `messenger`. + * + * NOTE: {isCrossChain} should be checked before trying to recover the + * sender, as it will revert with `NotCrossChainCall` if the current + * function call is not the result of a cross-chain message. + */ + function crossChainSender(address messenger) internal view returns (address) { + if (!isCrossChain(messenger)) revert NotCrossChainCall(); + + return Optimism_Bridge(messenger).xDomainMessageSender(); + } +} diff --git a/lib/openzeppelin-contracts/contracts/crosschain/polygon/CrossChainEnabledPolygonChild.sol b/lib/openzeppelin-contracts/contracts/crosschain/polygon/CrossChainEnabledPolygonChild.sol new file mode 100644 index 0000000..fa09948 --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/crosschain/polygon/CrossChainEnabledPolygonChild.sol @@ -0,0 +1,72 @@ +// SPDX-License-Identifier: MIT +// OpenZeppelin Contracts (last updated v4.7.0) (crosschain/polygon/CrossChainEnabledPolygonChild.sol) + +pragma solidity ^0.8.4; + +import "../CrossChainEnabled.sol"; +import "../../security/ReentrancyGuard.sol"; +import "../../utils/Address.sol"; +import "../../vendor/polygon/IFxMessageProcessor.sol"; + +address constant DEFAULT_SENDER = 0x000000000000000000000000000000000000dEaD; + +/** + * @dev https://polygon.technology/[Polygon] specialization or the + * {CrossChainEnabled} abstraction the child side (polygon/mumbai). + * + * This version should only be deployed on child chain to process cross-chain + * messages originating from the parent chain. + * + * The fxChild contract is provided and maintained by the polygon team. You can + * find the address of this contract polygon and mumbai in + * https://docs.polygon.technology/docs/develop/l1-l2-communication/fx-portal/#contract-addresses[Polygon's Fx-Portal documentation]. + * + * _Available since v4.6._ + */ +abstract contract CrossChainEnabledPolygonChild is IFxMessageProcessor, CrossChainEnabled, ReentrancyGuard { + /// @custom:oz-upgrades-unsafe-allow state-variable-immutable + address private immutable _fxChild; + address private _sender = DEFAULT_SENDER; + + /// @custom:oz-upgrades-unsafe-allow constructor + constructor(address fxChild) { + _fxChild = fxChild; + } + + /** + * @dev see {CrossChainEnabled-_isCrossChain} + */ + function _isCrossChain() internal view virtual override returns (bool) { + return msg.sender == _fxChild; + } + + /** + * @dev see {CrossChainEnabled-_crossChainSender} + */ + function _crossChainSender() internal view virtual override onlyCrossChain returns (address) { + return _sender; + } + + /** + * @dev External entry point to receive and relay messages originating + * from the fxChild. + * + * Non-reentrancy is crucial to avoid a cross-chain call being able + * to impersonate anyone by just looping through this with user-defined + * arguments. + * + * Note: if _fxChild calls any other function that does a delegate-call, + * then security could be compromised. + */ + function processMessageFromRoot( + uint256 /* stateId */, + address rootMessageSender, + bytes calldata data + ) external override nonReentrant { + if (!_isCrossChain()) revert NotCrossChainCall(); + + _sender = rootMessageSender; + Address.functionDelegateCall(address(this), data, "cross-chain execution failed"); + _sender = DEFAULT_SENDER; + } +} diff --git a/lib/openzeppelin-contracts/contracts/finance/PaymentSplitter.sol b/lib/openzeppelin-contracts/contracts/finance/PaymentSplitter.sol new file mode 100644 index 0000000..daa9090 --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/finance/PaymentSplitter.sol @@ -0,0 +1,214 @@ +// SPDX-License-Identifier: MIT +// OpenZeppelin Contracts (last updated v4.8.0) (finance/PaymentSplitter.sol) + +pragma solidity ^0.8.0; + +import "../token/ERC20/utils/SafeERC20.sol"; +import "../utils/Address.sol"; +import "../utils/Context.sol"; + +/** + * @title PaymentSplitter + * @dev This contract allows to split Ether payments among a group of accounts. The sender does not need to be aware + * that the Ether will be split in this way, since it is handled transparently by the contract. + * + * The split can be in equal parts or in any other arbitrary proportion. The way this is specified is by assigning each + * account to a number of shares. Of all the Ether that this contract receives, each account will then be able to claim + * an amount proportional to the percentage of total shares they were assigned. The distribution of shares is set at the + * time of contract deployment and can't be updated thereafter. + * + * `PaymentSplitter` follows a _pull payment_ model. This means that payments are not automatically forwarded to the + * accounts but kept in this contract, and the actual transfer is triggered as a separate step by calling the {release} + * function. + * + * NOTE: This contract assumes that ERC20 tokens will behave similarly to native tokens (Ether). Rebasing tokens, and + * tokens that apply fees during transfers, are likely to not be supported as expected. If in doubt, we encourage you + * to run tests before sending real value to this contract. + */ +contract PaymentSplitter is Context { + event PayeeAdded(address account, uint256 shares); + event PaymentReleased(address to, uint256 amount); + event ERC20PaymentReleased(IERC20 indexed token, address to, uint256 amount); + event PaymentReceived(address from, uint256 amount); + + uint256 private _totalShares; + uint256 private _totalReleased; + + mapping(address => uint256) private _shares; + mapping(address => uint256) private _released; + address[] private _payees; + + mapping(IERC20 => uint256) private _erc20TotalReleased; + mapping(IERC20 => mapping(address => uint256)) private _erc20Released; + + /** + * @dev Creates an instance of `PaymentSplitter` where each account in `payees` is assigned the number of shares at + * the matching position in the `shares` array. + * + * All addresses in `payees` must be non-zero. Both arrays must have the same non-zero length, and there must be no + * duplicates in `payees`. + */ + constructor(address[] memory payees, uint256[] memory shares_) payable { + require(payees.length == shares_.length, "PaymentSplitter: payees and shares length mismatch"); + require(payees.length > 0, "PaymentSplitter: no payees"); + + for (uint256 i = 0; i < payees.length; i++) { + _addPayee(payees[i], shares_[i]); + } + } + + /** + * @dev The Ether received will be logged with {PaymentReceived} events. Note that these events are not fully + * reliable: it's possible for a contract to receive Ether without triggering this function. This only affects the + * reliability of the events, and not the actual splitting of Ether. + * + * To learn more about this see the Solidity documentation for + * https://solidity.readthedocs.io/en/latest/contracts.html#fallback-function[fallback + * functions]. + */ + receive() external payable virtual { + emit PaymentReceived(_msgSender(), msg.value); + } + + /** + * @dev Getter for the total shares held by payees. + */ + function totalShares() public view returns (uint256) { + return _totalShares; + } + + /** + * @dev Getter for the total amount of Ether already released. + */ + function totalReleased() public view returns (uint256) { + return _totalReleased; + } + + /** + * @dev Getter for the total amount of `token` already released. `token` should be the address of an IERC20 + * contract. + */ + function totalReleased(IERC20 token) public view returns (uint256) { + return _erc20TotalReleased[token]; + } + + /** + * @dev Getter for the amount of shares held by an account. + */ + function shares(address account) public view returns (uint256) { + return _shares[account]; + } + + /** + * @dev Getter for the amount of Ether already released to a payee. + */ + function released(address account) public view returns (uint256) { + return _released[account]; + } + + /** + * @dev Getter for the amount of `token` tokens already released to a payee. `token` should be the address of an + * IERC20 contract. + */ + function released(IERC20 token, address account) public view returns (uint256) { + return _erc20Released[token][account]; + } + + /** + * @dev Getter for the address of the payee number `index`. + */ + function payee(uint256 index) public view returns (address) { + return _payees[index]; + } + + /** + * @dev Getter for the amount of payee's releasable Ether. + */ + function releasable(address account) public view returns (uint256) { + uint256 totalReceived = address(this).balance + totalReleased(); + return _pendingPayment(account, totalReceived, released(account)); + } + + /** + * @dev Getter for the amount of payee's releasable `token` tokens. `token` should be the address of an + * IERC20 contract. + */ + function releasable(IERC20 token, address account) public view returns (uint256) { + uint256 totalReceived = token.balanceOf(address(this)) + totalReleased(token); + return _pendingPayment(account, totalReceived, released(token, account)); + } + + /** + * @dev Triggers a transfer to `account` of the amount of Ether they are owed, according to their percentage of the + * total shares and their previous withdrawals. + */ + function release(address payable account) public virtual { + require(_shares[account] > 0, "PaymentSplitter: account has no shares"); + + uint256 payment = releasable(account); + + require(payment != 0, "PaymentSplitter: account is not due payment"); + + // _totalReleased is the sum of all values in _released. + // If "_totalReleased += payment" does not overflow, then "_released[account] += payment" cannot overflow. + _totalReleased += payment; + unchecked { + _released[account] += payment; + } + + Address.sendValue(account, payment); + emit PaymentReleased(account, payment); + } + + /** + * @dev Triggers a transfer to `account` of the amount of `token` tokens they are owed, according to their + * percentage of the total shares and their previous withdrawals. `token` must be the address of an IERC20 + * contract. + */ + function release(IERC20 token, address account) public virtual { + require(_shares[account] > 0, "PaymentSplitter: account has no shares"); + + uint256 payment = releasable(token, account); + + require(payment != 0, "PaymentSplitter: account is not due payment"); + + // _erc20TotalReleased[token] is the sum of all values in _erc20Released[token]. + // If "_erc20TotalReleased[token] += payment" does not overflow, then "_erc20Released[token][account] += payment" + // cannot overflow. + _erc20TotalReleased[token] += payment; + unchecked { + _erc20Released[token][account] += payment; + } + + SafeERC20.safeTransfer(token, account, payment); + emit ERC20PaymentReleased(token, account, payment); + } + + /** + * @dev internal logic for computing the pending payment of an `account` given the token historical balances and + * already released amounts. + */ + function _pendingPayment( + address account, + uint256 totalReceived, + uint256 alreadyReleased + ) private view returns (uint256) { + return (totalReceived * _shares[account]) / _totalShares - alreadyReleased; + } + + /** + * @dev Add a new payee to the contract. + * @param account The address of the payee to add. + * @param shares_ The number of shares owned by the payee. + */ + function _addPayee(address account, uint256 shares_) private { + require(account != address(0), "PaymentSplitter: account is the zero address"); + require(shares_ > 0, "PaymentSplitter: shares are 0"); + require(_shares[account] == 0, "PaymentSplitter: account already has shares"); + + _payees.push(account); + _shares[account] = shares_; + _totalShares = _totalShares + shares_; + emit PayeeAdded(account, shares_); + } +} diff --git a/lib/openzeppelin-contracts/contracts/finance/README.adoc b/lib/openzeppelin-contracts/contracts/finance/README.adoc new file mode 100644 index 0000000..b64af31 --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/finance/README.adoc @@ -0,0 +1,20 @@ += Finance + +[.readme-notice] +NOTE: This document is better viewed at https://docs.openzeppelin.com/contracts/api/finance + +This directory includes primitives for financial systems: + +- {PaymentSplitter} allows to split Ether and ERC20 payments among a group of accounts. The sender does not need to be + aware that the assets will be split in this way, since it is handled transparently by the contract. The split can be + in equal parts or in any other arbitrary proportion. + +- {VestingWallet} handles the vesting of Ether and ERC20 tokens for a given beneficiary. Custody of multiple tokens can + be given to this contract, which will release the token to the beneficiary following a given, customizable, vesting + schedule. + +== Contracts + +{{PaymentSplitter}} + +{{VestingWallet}} diff --git a/lib/openzeppelin-contracts/contracts/finance/VestingWallet.sol b/lib/openzeppelin-contracts/contracts/finance/VestingWallet.sol new file mode 100644 index 0000000..fe67eb5 --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/finance/VestingWallet.sol @@ -0,0 +1,145 @@ +// SPDX-License-Identifier: MIT +// OpenZeppelin Contracts (last updated v4.8.0) (finance/VestingWallet.sol) +pragma solidity ^0.8.0; + +import "../token/ERC20/utils/SafeERC20.sol"; +import "../utils/Address.sol"; +import "../utils/Context.sol"; + +/** + * @title VestingWallet + * @dev This contract handles the vesting of Eth and ERC20 tokens for a given beneficiary. Custody of multiple tokens + * can be given to this contract, which will release the token to the beneficiary following a given vesting schedule. + * The vesting schedule is customizable through the {vestedAmount} function. + * + * Any token transferred to this contract will follow the vesting schedule as if they were locked from the beginning. + * Consequently, if the vesting has already started, any amount of tokens sent to this contract will (at least partly) + * be immediately releasable. + */ +contract VestingWallet is Context { + event EtherReleased(uint256 amount); + event ERC20Released(address indexed token, uint256 amount); + + uint256 private _released; + mapping(address => uint256) private _erc20Released; + address private immutable _beneficiary; + uint64 private immutable _start; + uint64 private immutable _duration; + + /** + * @dev Set the beneficiary, start timestamp and vesting duration of the vesting wallet. + */ + constructor(address beneficiaryAddress, uint64 startTimestamp, uint64 durationSeconds) payable { + require(beneficiaryAddress != address(0), "VestingWallet: beneficiary is zero address"); + _beneficiary = beneficiaryAddress; + _start = startTimestamp; + _duration = durationSeconds; + } + + /** + * @dev The contract should be able to receive Eth. + */ + receive() external payable virtual {} + + /** + * @dev Getter for the beneficiary address. + */ + function beneficiary() public view virtual returns (address) { + return _beneficiary; + } + + /** + * @dev Getter for the start timestamp. + */ + function start() public view virtual returns (uint256) { + return _start; + } + + /** + * @dev Getter for the vesting duration. + */ + function duration() public view virtual returns (uint256) { + return _duration; + } + + /** + * @dev Amount of eth already released + */ + function released() public view virtual returns (uint256) { + return _released; + } + + /** + * @dev Amount of token already released + */ + function released(address token) public view virtual returns (uint256) { + return _erc20Released[token]; + } + + /** + * @dev Getter for the amount of releasable eth. + */ + function releasable() public view virtual returns (uint256) { + return vestedAmount(uint64(block.timestamp)) - released(); + } + + /** + * @dev Getter for the amount of releasable `token` tokens. `token` should be the address of an + * IERC20 contract. + */ + function releasable(address token) public view virtual returns (uint256) { + return vestedAmount(token, uint64(block.timestamp)) - released(token); + } + + /** + * @dev Release the native token (ether) that have already vested. + * + * Emits a {EtherReleased} event. + */ + function release() public virtual { + uint256 amount = releasable(); + _released += amount; + emit EtherReleased(amount); + Address.sendValue(payable(beneficiary()), amount); + } + + /** + * @dev Release the tokens that have already vested. + * + * Emits a {ERC20Released} event. + */ + function release(address token) public virtual { + uint256 amount = releasable(token); + _erc20Released[token] += amount; + emit ERC20Released(token, amount); + SafeERC20.safeTransfer(IERC20(token), beneficiary(), amount); + } + + /** + * @dev Calculates the amount of ether that has already vested. Default implementation is a linear vesting curve. + */ + function vestedAmount(uint64 timestamp) public view virtual returns (uint256) { + return _vestingSchedule(address(this).balance + released(), timestamp); + } + + /** + * @dev Calculates the amount of tokens that has already vested. Default implementation is a linear vesting curve. + */ + function vestedAmount(address token, uint64 timestamp) public view virtual returns (uint256) { + return _vestingSchedule(IERC20(token).balanceOf(address(this)) + released(token), timestamp); + } + + /** + * @dev Virtual implementation of the vesting formula. This returns the amount vested, as a function of time, for + * an asset given its total historical allocation. + */ + function _vestingSchedule(uint256 totalAllocation, uint64 timestamp) internal view virtual returns (uint256) { + if (timestamp < start()) { + return 0; + } else if (timestamp > start() + duration()) { + return totalAllocation; + } else { + return (totalAllocation * (timestamp - start())) / duration(); + } + } +} diff --git a/lib/openzeppelin-contracts/contracts/governance/Governor.sol b/lib/openzeppelin-contracts/contracts/governance/Governor.sol new file mode 100644 index 0000000..8235fb5 --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/governance/Governor.sol @@ -0,0 +1,588 @@ +// SPDX-License-Identifier: MIT +// OpenZeppelin Contracts (last updated v4.8.0) (governance/Governor.sol) + +pragma solidity ^0.8.0; + +import "../token/ERC721/IERC721Receiver.sol"; +import "../token/ERC1155/IERC1155Receiver.sol"; +import "../utils/cryptography/ECDSA.sol"; +import "../utils/cryptography/EIP712.sol"; +import "../utils/introspection/ERC165.sol"; +import "../utils/math/SafeCast.sol"; +import "../utils/structs/DoubleEndedQueue.sol"; +import "../utils/Address.sol"; +import "../utils/Context.sol"; +import "../utils/Timers.sol"; +import "./IGovernor.sol"; + +/** + * @dev Core of the governance system, designed to be extended though various modules. + * + * This contract is abstract and requires several function to be implemented in various modules: + * + * - A counting module must implement {quorum}, {_quorumReached}, {_voteSucceeded} and {_countVote} + * - A voting module must implement {_getVotes} + * - Additionally, the {votingPeriod} must also be implemented + * + * _Available since v4.3._ + */ +abstract contract Governor is Context, ERC165, EIP712, IGovernor, IERC721Receiver, IERC1155Receiver { + using DoubleEndedQueue for DoubleEndedQueue.Bytes32Deque; + using SafeCast for uint256; + using Timers for Timers.BlockNumber; + + bytes32 public constant BALLOT_TYPEHASH = keccak256("Ballot(uint256 proposalId,uint8 support)"); + bytes32 public constant EXTENDED_BALLOT_TYPEHASH = + keccak256("ExtendedBallot(uint256 proposalId,uint8 support,string reason,bytes params)"); + + struct ProposalCore { + Timers.BlockNumber voteStart; + Timers.BlockNumber voteEnd; + bool executed; + bool canceled; + } + + string private _name; + + mapping(uint256 => ProposalCore) private _proposals; + + // This queue keeps track of the governor operating on itself. Calls to functions protected by the + // {onlyGovernance} modifier needs to be whitelisted in this queue. Whitelisting is set in {_beforeExecute}, + // consumed by the {onlyGovernance} modifier and eventually reset in {_afterExecute}. This ensures that the + // execution of {onlyGovernance} protected calls can only be achieved through successful proposals. + DoubleEndedQueue.Bytes32Deque private _governanceCall; + + /** + * @dev Restricts a function so it can only be executed through governance proposals. For example, governance + * parameter setters in {GovernorSettings} are protected using this modifier. + * + * The governance executing address may be different from the Governor's own address, for example it could be a + * timelock. This can be customized by modules by overriding {_executor}. The executor is only able to invoke these + * functions during the execution of the governor's {execute} function, and not under any other circumstances. Thus, + * for example, additional timelock proposers are not able to change governance parameters without going through the + * governance protocol (since v4.6). + */ + modifier onlyGovernance() { + require(_msgSender() == _executor(), "Governor: onlyGovernance"); + if (_executor() != address(this)) { + bytes32 msgDataHash = keccak256(_msgData()); + // loop until popping the expected operation - throw if deque is empty (operation not authorized) + while (_governanceCall.popFront() != msgDataHash) {} + } + _; + } + + /** + * @dev Sets the value for {name} and {version} + */ + constructor(string memory name_) EIP712(name_, version()) { + _name = name_; + } + + /** + * @dev Function to receive ETH that will be handled by the governor (disabled if executor is a third party contract) + */ + receive() external payable virtual { + require(_executor() == address(this)); + } + + /** + * @dev See {IERC165-supportsInterface}. + */ + function supportsInterface(bytes4 interfaceId) public view virtual override(IERC165, ERC165) returns (bool) { + // In addition to the current interfaceId, also support previous version of the interfaceId that did not + // include the castVoteWithReasonAndParams() function as standard + return + interfaceId == + (type(IGovernor).interfaceId ^ + this.castVoteWithReasonAndParams.selector ^ + this.castVoteWithReasonAndParamsBySig.selector ^ + this.getVotesWithParams.selector) || + interfaceId == type(IGovernor).interfaceId || + interfaceId == type(IERC1155Receiver).interfaceId || + super.supportsInterface(interfaceId); + } + + /** + * @dev See {IGovernor-name}. + */ + function name() public view virtual override returns (string memory) { + return _name; + } + + /** + * @dev See {IGovernor-version}. + */ + function version() public view virtual override returns (string memory) { + return "1"; + } + + /** + * @dev See {IGovernor-hashProposal}. + * + * The proposal id is produced by hashing the ABI encoded `targets` array, the `values` array, the `calldatas` array + * and the descriptionHash (bytes32 which itself is the keccak256 hash of the description string). This proposal id + * can be produced from the proposal data which is part of the {ProposalCreated} event. It can even be computed in + * advance, before the proposal is submitted. + * + * Note that the chainId and the governor address are not part of the proposal id computation. Consequently, the + * same proposal (with same operation and same description) will have the same id if submitted on multiple governors + * across multiple networks. This also means that in order to execute the same operation twice (on the same + * governor) the proposer will have to change the description in order to avoid proposal id conflicts. + */ + function hashProposal( + address[] memory targets, + uint256[] memory values, + bytes[] memory calldatas, + bytes32 descriptionHash + ) public pure virtual override returns (uint256) { + return uint256(keccak256(abi.encode(targets, values, calldatas, descriptionHash))); + } + + /** + * @dev See {IGovernor-state}. + */ + function state(uint256 proposalId) public view virtual override returns (ProposalState) { + ProposalCore storage proposal = _proposals[proposalId]; + + if (proposal.executed) { + return ProposalState.Executed; + } + + if (proposal.canceled) { + return ProposalState.Canceled; + } + + uint256 snapshot = proposalSnapshot(proposalId); + + if (snapshot == 0) { + revert("Governor: unknown proposal id"); + } + + if (snapshot >= block.number) { + return ProposalState.Pending; + } + + uint256 deadline = proposalDeadline(proposalId); + + if (deadline >= block.number) { + return ProposalState.Active; + } + + if (_quorumReached(proposalId) && _voteSucceeded(proposalId)) { + return ProposalState.Succeeded; + } else { + return ProposalState.Defeated; + } + } + + /** + * @dev See {IGovernor-proposalSnapshot}. + */ + function proposalSnapshot(uint256 proposalId) public view virtual override returns (uint256) { + return _proposals[proposalId].voteStart.getDeadline(); + } + + /** + * @dev See {IGovernor-proposalDeadline}. + */ + function proposalDeadline(uint256 proposalId) public view virtual override returns (uint256) { + return _proposals[proposalId].voteEnd.getDeadline(); + } + + /** + * @dev Part of the Governor Bravo's interface: _"The number of votes required in order for a voter to become a proposer"_. + */ + function proposalThreshold() public view virtual returns (uint256) { + return 0; + } + + /** + * @dev Amount of votes already cast passes the threshold limit. + */ + function _quorumReached(uint256 proposalId) internal view virtual returns (bool); + + /** + * @dev Is the proposal successful or not. + */ + function _voteSucceeded(uint256 proposalId) internal view virtual returns (bool); + + /** + * @dev Get the voting weight of `account` at a specific `blockNumber`, for a vote as described by `params`. + */ + function _getVotes( + address account, + uint256 blockNumber, + bytes memory params + ) internal view virtual returns (uint256); + + /** + * @dev Register a vote for `proposalId` by `account` with a given `support`, voting `weight` and voting `params`. + * + * Note: Support is generic and can represent various things depending on the voting system used. + */ + function _countVote( + uint256 proposalId, + address account, + uint8 support, + uint256 weight, + bytes memory params + ) internal virtual; + + /** + * @dev Default additional encoded parameters used by castVote methods that don't include them + * + * Note: Should be overridden by specific implementations to use an appropriate value, the + * meaning of the additional params, in the context of that implementation + */ + function _defaultParams() internal view virtual returns (bytes memory) { + return ""; + } + + /** + * @dev See {IGovernor-propose}. + */ + function propose( + address[] memory targets, + uint256[] memory values, + bytes[] memory calldatas, + string memory description + ) public virtual override returns (uint256) { + require( + getVotes(_msgSender(), block.number - 1) >= proposalThreshold(), + "Governor: proposer votes below proposal threshold" + ); + + uint256 proposalId = hashProposal(targets, values, calldatas, keccak256(bytes(description))); + + require(targets.length == values.length, "Governor: invalid proposal length"); + require(targets.length == calldatas.length, "Governor: invalid proposal length"); + require(targets.length > 0, "Governor: empty proposal"); + + ProposalCore storage proposal = _proposals[proposalId]; + require(proposal.voteStart.isUnset(), "Governor: proposal already exists"); + + uint64 snapshot = block.number.toUint64() + votingDelay().toUint64(); + uint64 deadline = snapshot + votingPeriod().toUint64(); + + proposal.voteStart.setDeadline(snapshot); + proposal.voteEnd.setDeadline(deadline); + + emit ProposalCreated( + proposalId, + _msgSender(), + targets, + values, + new string[](targets.length), + calldatas, + snapshot, + deadline, + description + ); + + return proposalId; + } + + /** + * @dev See {IGovernor-execute}. + */ + function execute( + address[] memory targets, + uint256[] memory values, + bytes[] memory calldatas, + bytes32 descriptionHash + ) public payable virtual override returns (uint256) { + uint256 proposalId = hashProposal(targets, values, calldatas, descriptionHash); + + ProposalState status = state(proposalId); + require( + status == ProposalState.Succeeded || status == ProposalState.Queued, + "Governor: proposal not successful" + ); + _proposals[proposalId].executed = true; + + emit ProposalExecuted(proposalId); + + _beforeExecute(proposalId, targets, values, calldatas, descriptionHash); + _execute(proposalId, targets, values, calldatas, descriptionHash); + _afterExecute(proposalId, targets, values, calldatas, descriptionHash); + + return proposalId; + } + + /** + * @dev Internal execution mechanism. Can be overridden to implement different execution mechanism + */ + function _execute( + uint256 /* proposalId */, + address[] memory targets, + uint256[] memory values, + bytes[] memory calldatas, + bytes32 /*descriptionHash*/ + ) internal virtual { + string memory errorMessage = "Governor: call reverted without message"; + for (uint256 i = 0; i < targets.length; ++i) { + (bool success, bytes memory returndata) = targets[i].call{value: values[i]}(calldatas[i]); + Address.verifyCallResult(success, returndata, errorMessage); + } + } + + /** + * @dev Hook before execution is triggered. + */ + function _beforeExecute( + uint256 /* proposalId */, + address[] memory targets, + uint256[] memory /* values */, + bytes[] memory calldatas, + bytes32 /*descriptionHash*/ + ) internal virtual { + if (_executor() != address(this)) { + for (uint256 i = 0; i < targets.length; ++i) { + if (targets[i] == address(this)) { + _governanceCall.pushBack(keccak256(calldatas[i])); + } + } + } + } + + /** + * @dev Hook after execution is triggered. + */ + function _afterExecute( + uint256 /* proposalId */, + address[] memory /* targets */, + uint256[] memory /* values */, + bytes[] memory /* calldatas */, + bytes32 /*descriptionHash*/ + ) internal virtual { + if (_executor() != address(this)) { + if (!_governanceCall.empty()) { + _governanceCall.clear(); + } + } + } + + /** + * @dev Internal cancel mechanism: locks up the proposal timer, preventing it from being re-submitted. Marks it as + * canceled to allow distinguishing it from executed proposals. + * + * Emits a {IGovernor-ProposalCanceled} event. + */ + function _cancel( + address[] memory targets, + uint256[] memory values, + bytes[] memory calldatas, + bytes32 descriptionHash + ) internal virtual returns (uint256) { + uint256 proposalId = hashProposal(targets, values, calldatas, descriptionHash); + ProposalState status = state(proposalId); + + require( + status != ProposalState.Canceled && status != ProposalState.Expired && status != ProposalState.Executed, + "Governor: proposal not active" + ); + _proposals[proposalId].canceled = true; + + emit ProposalCanceled(proposalId); + + return proposalId; + } + + /** + * @dev See {IGovernor-getVotes}. + */ + function getVotes(address account, uint256 blockNumber) public view virtual override returns (uint256) { + return _getVotes(account, blockNumber, _defaultParams()); + } + + /** + * @dev See {IGovernor-getVotesWithParams}. + */ + function getVotesWithParams( + address account, + uint256 blockNumber, + bytes memory params + ) public view virtual override returns (uint256) { + return _getVotes(account, blockNumber, params); + } + + /** + * @dev See {IGovernor-castVote}. + */ + function castVote(uint256 proposalId, uint8 support) public virtual override returns (uint256) { + address voter = _msgSender(); + return _castVote(proposalId, voter, support, ""); + } + + /** + * @dev See {IGovernor-castVoteWithReason}. + */ + function castVoteWithReason( + uint256 proposalId, + uint8 support, + string calldata reason + ) public virtual override returns (uint256) { + address voter = _msgSender(); + return _castVote(proposalId, voter, support, reason); + } + + /** + * @dev See {IGovernor-castVoteWithReasonAndParams}. + */ + function castVoteWithReasonAndParams( + uint256 proposalId, + uint8 support, + string calldata reason, + bytes memory params + ) public virtual override returns (uint256) { + address voter = _msgSender(); + return _castVote(proposalId, voter, support, reason, params); + } + + /** + * @dev See {IGovernor-castVoteBySig}. + */ + function castVoteBySig( + uint256 proposalId, + uint8 support, + uint8 v, + bytes32 r, + bytes32 s + ) public virtual override returns (uint256) { + address voter = ECDSA.recover( + _hashTypedDataV4(keccak256(abi.encode(BALLOT_TYPEHASH, proposalId, support))), + v, + r, + s + ); + return _castVote(proposalId, voter, support, ""); + } + + /** + * @dev See {IGovernor-castVoteWithReasonAndParamsBySig}. + */ + function castVoteWithReasonAndParamsBySig( + uint256 proposalId, + uint8 support, + string calldata reason, + bytes memory params, + uint8 v, + bytes32 r, + bytes32 s + ) public virtual override returns (uint256) { + address voter = ECDSA.recover( + _hashTypedDataV4( + keccak256( + abi.encode( + EXTENDED_BALLOT_TYPEHASH, + proposalId, + support, + keccak256(bytes(reason)), + keccak256(params) + ) + ) + ), + v, + r, + s + ); + + return _castVote(proposalId, voter, support, reason, params); + } + + /** + * @dev Internal vote casting mechanism: Check that the vote is pending, that it has not been cast yet, retrieve + * voting weight using {IGovernor-getVotes} and call the {_countVote} internal function. Uses the _defaultParams(). + * + * Emits a {IGovernor-VoteCast} event. + */ + function _castVote( + uint256 proposalId, + address account, + uint8 support, + string memory reason + ) internal virtual returns (uint256) { + return _castVote(proposalId, account, support, reason, _defaultParams()); + } + + /** + * @dev Internal vote casting mechanism: Check that the vote is pending, that it has not been cast yet, retrieve + * voting weight using {IGovernor-getVotes} and call the {_countVote} internal function. + * + * Emits a {IGovernor-VoteCast} event. + */ + function _castVote( + uint256 proposalId, + address account, + uint8 support, + string memory reason, + bytes memory params + ) internal virtual returns (uint256) { + ProposalCore storage proposal = _proposals[proposalId]; + require(state(proposalId) == ProposalState.Active, "Governor: vote not currently active"); + + uint256 weight = _getVotes(account, proposal.voteStart.getDeadline(), params); + _countVote(proposalId, account, support, weight, params); + + if (params.length == 0) { + emit VoteCast(account, proposalId, support, weight, reason); + } else { + emit VoteCastWithParams(account, proposalId, support, weight, reason, params); + } + + return weight; + } + + /** + * @dev Relays a transaction or function call to an arbitrary target. In cases where the governance executor + * is some contract other than the governor itself, like when using a timelock, this function can be invoked + * in a governance proposal to recover tokens or Ether that was sent to the governor contract by mistake. + * Note that if the executor is simply the governor itself, use of `relay` is redundant. + */ + function relay(address target, uint256 value, bytes calldata data) external payable virtual onlyGovernance { + (bool success, bytes memory returndata) = target.call{value: value}(data); + Address.verifyCallResult(success, returndata, "Governor: relay reverted without message"); + } + + /** + * @dev Address through which the governor executes action. Will be overloaded by module that execute actions + * through another contract such as a timelock. + */ + function _executor() internal view virtual returns (address) { + return address(this); + } + + /** + * @dev See {IERC721Receiver-onERC721Received}. + */ + function onERC721Received(address, address, uint256, bytes memory) public virtual override returns (bytes4) { + return this.onERC721Received.selector; + } + + /** + * @dev See {IERC1155Receiver-onERC1155Received}. + */ + function onERC1155Received( + address, + address, + uint256, + uint256, + bytes memory + ) public virtual override returns (bytes4) { + return this.onERC1155Received.selector; + } + + /** + * @dev See {IERC1155Receiver-onERC1155BatchReceived}. + */ + function onERC1155BatchReceived( + address, + address, + uint256[] memory, + uint256[] memory, + bytes memory + ) public virtual override returns (bytes4) { + return this.onERC1155BatchReceived.selector; + } +} diff --git a/lib/openzeppelin-contracts/contracts/governance/IGovernor.sol b/lib/openzeppelin-contracts/contracts/governance/IGovernor.sol new file mode 100644 index 0000000..eb3d1fc --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/governance/IGovernor.sol @@ -0,0 +1,276 @@ +// SPDX-License-Identifier: MIT +// OpenZeppelin Contracts (last updated v4.8.0) (governance/IGovernor.sol) + +pragma solidity ^0.8.0; + +import "../utils/introspection/ERC165.sol"; + +/** + * @dev Interface of the {Governor} core. + * + * _Available since v4.3._ + */ +abstract contract IGovernor is IERC165 { + enum ProposalState { + Pending, + Active, + Canceled, + Defeated, + Succeeded, + Queued, + Expired, + Executed + } + + /** + * @dev Emitted when a proposal is created. + */ + event ProposalCreated( + uint256 proposalId, + address proposer, + address[] targets, + uint256[] values, + string[] signatures, + bytes[] calldatas, + uint256 startBlock, + uint256 endBlock, + string description + ); + + /** + * @dev Emitted when a proposal is canceled. + */ + event ProposalCanceled(uint256 proposalId); + + /** + * @dev Emitted when a proposal is executed. + */ + event ProposalExecuted(uint256 proposalId); + + /** + * @dev Emitted when a vote is cast without params. + * + * Note: `support` values should be seen as buckets. Their interpretation depends on the voting module used. + */ + event VoteCast(address indexed voter, uint256 proposalId, uint8 support, uint256 weight, string reason); + + /** + * @dev Emitted when a vote is cast with params. + * + * Note: `support` values should be seen as buckets. Their interpretation depends on the voting module used. + * `params` are additional encoded parameters. Their intepepretation also depends on the voting module used. + */ + event VoteCastWithParams( + address indexed voter, + uint256 proposalId, + uint8 support, + uint256 weight, + string reason, + bytes params + ); + + /** + * @notice module:core + * @dev Name of the governor instance (used in building the ERC712 domain separator). + */ + function name() public view virtual returns (string memory); + + /** + * @notice module:core + * @dev Version of the governor instance (used in building the ERC712 domain separator). Default: "1" + */ + function version() public view virtual returns (string memory); + + /** + * @notice module:voting + * @dev A description of the possible `support` values for {castVote} and the way these votes are counted, meant to + * be consumed by UIs to show correct vote options and interpret the results. The string is a URL-encoded sequence of + * key-value pairs that each describe one aspect, for example `support=bravo&quorum=for,abstain`. + * + * There are 2 standard keys: `support` and `quorum`. + * + * - `support=bravo` refers to the vote options 0 = Against, 1 = For, 2 = Abstain, as in `GovernorBravo`. + * - `quorum=bravo` means that only For votes are counted towards quorum. + * - `quorum=for,abstain` means that both For and Abstain votes are counted towards quorum. + * + * If a counting module makes use of encoded `params`, it should include this under a `params` key with a unique + * name that describes the behavior. For example: + * + * - `params=fractional` might refer to a scheme where votes are divided fractionally between for/against/abstain. + * - `params=erc721` might refer to a scheme where specific NFTs are delegated to vote. + * + * NOTE: The string can be decoded by the standard + * https://developer.mozilla.org/en-US/docs/Web/API/URLSearchParams[`URLSearchParams`] + * JavaScript class. + */ + // solhint-disable-next-line func-name-mixedcase + function COUNTING_MODE() public pure virtual returns (string memory); + + /** + * @notice module:core + * @dev Hashing function used to (re)build the proposal id from the proposal details.. + */ + function hashProposal( + address[] memory targets, + uint256[] memory values, + bytes[] memory calldatas, + bytes32 descriptionHash + ) public pure virtual returns (uint256); + + /** + * @notice module:core + * @dev Current state of a proposal, following Compound's convention + */ + function state(uint256 proposalId) public view virtual returns (ProposalState); + + /** + * @notice module:core + * @dev Block number used to retrieve user's votes and quorum. As per Compound's Comp and OpenZeppelin's + * ERC20Votes, the snapshot is performed at the end of this block. Hence, voting for this proposal starts at the + * beginning of the following block. + */ + function proposalSnapshot(uint256 proposalId) public view virtual returns (uint256); + + /** + * @notice module:core + * @dev Block number at which votes close. Votes close at the end of this block, so it is possible to cast a vote + * during this block. + */ + function proposalDeadline(uint256 proposalId) public view virtual returns (uint256); + + /** + * @notice module:user-config + * @dev Delay, in number of block, between the proposal is created and the vote starts. This can be increassed to + * leave time for users to buy voting power, or delegate it, before the voting of a proposal starts. + */ + function votingDelay() public view virtual returns (uint256); + + /** + * @notice module:user-config + * @dev Delay, in number of blocks, between the vote start and vote ends. + * + * NOTE: The {votingDelay} can delay the start of the vote. This must be considered when setting the voting + * duration compared to the voting delay. + */ + function votingPeriod() public view virtual returns (uint256); + + /** + * @notice module:user-config + * @dev Minimum number of cast voted required for a proposal to be successful. + * + * Note: The `blockNumber` parameter corresponds to the snapshot used for counting vote. This allows to scale the + * quorum depending on values such as the totalSupply of a token at this block (see {ERC20Votes}). + */ + function quorum(uint256 blockNumber) public view virtual returns (uint256); + + /** + * @notice module:reputation + * @dev Voting power of an `account` at a specific `blockNumber`. + * + * Note: this can be implemented in a number of ways, for example by reading the delegated balance from one (or + * multiple), {ERC20Votes} tokens. + */ + function getVotes(address account, uint256 blockNumber) public view virtual returns (uint256); + + /** + * @notice module:reputation + * @dev Voting power of an `account` at a specific `blockNumber` given additional encoded parameters. + */ + function getVotesWithParams( + address account, + uint256 blockNumber, + bytes memory params + ) public view virtual returns (uint256); + + /** + * @notice module:voting + * @dev Returns whether `account` has cast a vote on `proposalId`. + */ + function hasVoted(uint256 proposalId, address account) public view virtual returns (bool); + + /** + * @dev Create a new proposal. Vote start {IGovernor-votingDelay} blocks after the proposal is created and ends + * {IGovernor-votingPeriod} blocks after the voting starts. + * + * Emits a {ProposalCreated} event. + */ + function propose( + address[] memory targets, + uint256[] memory values, + bytes[] memory calldatas, + string memory description + ) public virtual returns (uint256 proposalId); + + /** + * @dev Execute a successful proposal. This requires the quorum to be reached, the vote to be successful, and the + * deadline to be reached. + * + * Emits a {ProposalExecuted} event. + * + * Note: some module can modify the requirements for execution, for example by adding an additional timelock. + */ + function execute( + address[] memory targets, + uint256[] memory values, + bytes[] memory calldatas, + bytes32 descriptionHash + ) public payable virtual returns (uint256 proposalId); + + /** + * @dev Cast a vote + * + * Emits a {VoteCast} event. + */ + function castVote(uint256 proposalId, uint8 support) public virtual returns (uint256 balance); + + /** + * @dev Cast a vote with a reason + * + * Emits a {VoteCast} event. + */ + function castVoteWithReason( + uint256 proposalId, + uint8 support, + string calldata reason + ) public virtual returns (uint256 balance); + + /** + * @dev Cast a vote with a reason and additional encoded parameters + * + * Emits a {VoteCast} or {VoteCastWithParams} event depending on the length of params. + */ + function castVoteWithReasonAndParams( + uint256 proposalId, + uint8 support, + string calldata reason, + bytes memory params + ) public virtual returns (uint256 balance); + + /** + * @dev Cast a vote using the user's cryptographic signature. + * + * Emits a {VoteCast} event. + */ + function castVoteBySig( + uint256 proposalId, + uint8 support, + uint8 v, + bytes32 r, + bytes32 s + ) public virtual returns (uint256 balance); + + /** + * @dev Cast a vote with a reason and additional encoded parameters using the user's cryptographic signature. + * + * Emits a {VoteCast} or {VoteCastWithParams} event depending on the length of params. + */ + function castVoteWithReasonAndParamsBySig( + uint256 proposalId, + uint8 support, + string calldata reason, + bytes memory params, + uint8 v, + bytes32 r, + bytes32 s + ) public virtual returns (uint256 balance); +} diff --git a/lib/openzeppelin-contracts/contracts/governance/README.adoc b/lib/openzeppelin-contracts/contracts/governance/README.adoc new file mode 100644 index 0000000..9bfa64f --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/governance/README.adoc @@ -0,0 +1,176 @@ += Governance + +[.readme-notice] +NOTE: This document is better viewed at https://docs.openzeppelin.com/contracts/api/governance + +This directory includes primitives for on-chain governance. + +== Governor + +This modular system of Governor contracts allows the deployment on-chain voting protocols similar to https://compound.finance/docs/governance[Compound's Governor Alpha & Bravo] and beyond, through the ability to easily customize multiple aspects of the protocol. + +[TIP] +==== +For a guided experience, set up your Governor contract using https://wizard.openzeppelin.com/#governor[Contracts Wizard]. + +For a written walkthrough, check out our guide on xref:ROOT:governance.adoc[How to set up on-chain governance]. +==== + +* {Governor}: The core contract that contains all the logic and primitives. It is abstract and requires choosing one of each of the modules below, or custom ones. + +Votes modules determine the source of voting power, and sometimes quorum number. + +* {GovernorVotes}: Extracts voting weight from an {ERC20Votes}, or since v4.5 an {ERC721Votes} token. + +* {GovernorVotesComp}: Extracts voting weight from a COMP-like or {ERC20VotesComp} token. + +* {GovernorVotesQuorumFraction}: Combines with `GovernorVotes` to set the quorum as a fraction of the total token supply. + +Counting modules determine valid voting options. + +* {GovernorCountingSimple}: Simple voting mechanism with 3 voting options: Against, For and Abstain. + +Timelock extensions add a delay for governance decisions to be executed. The workflow is extended to require a `queue` step before execution. With these modules, proposals are executed by the external timelock contract, thus it is the timelock that has to hold the assets that are being governed. + +* {GovernorTimelockControl}: Connects with an instance of {TimelockController}. Allows multiple proposers and executors, in addition to the Governor itself. + +* {GovernorTimelockCompound}: Connects with an instance of Compound's https://github.com/compound-finance/compound-protocol/blob/master/contracts/Timelock.sol[`Timelock`] contract. + +Other extensions can customize the behavior or interface in multiple ways. + +* {GovernorCompatibilityBravo}: Extends the interface to be fully `GovernorBravo`-compatible. Note that events are compatible regardless of whether this extension is included or not. + +* {GovernorSettings}: Manages some of the settings (voting delay, voting period duration, and proposal threshold) in a way that can be updated through a governance proposal, without requiring an upgrade. + +* {GovernorPreventLateQuorum}: Ensures there is a minimum voting period after quorum is reached as a security protection against large voters. + +In addition to modules and extensions, the core contract requires a few virtual functions to be implemented to your particular specifications: + +* <>: Delay (in number of blocks) since the proposal is submitted until voting power is fixed and voting starts. This can be used to enforce a delay after a proposal is published for users to buy tokens, or delegate their votes. +* <>: Delay (in number of blocks) since the proposal starts until voting ends. +* <>: Quorum required for a proposal to be successful. This function includes a `blockNumber` argument so the quorum can adapt through time, for example, to follow a token's `totalSupply`. + +NOTE: Functions of the `Governor` contract do not include access control. If you want to restrict access, you should add these checks by overloading the particular functions. Among these, {Governor-_cancel} is internal by default, and you will have to expose it (with the right access control mechanism) yourself if this function is needed. + +=== Core + +{{IGovernor}} + +{{Governor}} + +=== Modules + +{{GovernorCountingSimple}} + +{{GovernorVotes}} + +{{GovernorVotesQuorumFraction}} + +{{GovernorVotesComp}} + +=== Extensions + +{{GovernorTimelockControl}} + +{{GovernorTimelockCompound}} + +{{GovernorSettings}} + +{{GovernorPreventLateQuorum}} + +{{GovernorCompatibilityBravo}} + +=== Deprecated + +{{GovernorProposalThreshold}} + +== Utils + +{{Votes}} + +== Timelock + +In a governance system, the {TimelockController} contract is in charge of introducing a delay between a proposal and its execution. It can be used with or without a {Governor}. + +{{TimelockController}} + +[[timelock-terminology]] +==== Terminology + +* *Operation:* A transaction (or a set of transactions) that is the subject of the timelock. It has to be scheduled by a proposer and executed by an executor. The timelock enforces a minimum delay between the proposition and the execution (see xref:access-control.adoc#operation_lifecycle[operation lifecycle]). If the operation contains multiple transactions (batch mode), they are executed atomically. Operations are identified by the hash of their content. +* *Operation status:* +** *Unset:* An operation that is not part of the timelock mechanism. +** *Pending:* An operation that has been scheduled, before the timer expires. +** *Ready:* An operation that has been scheduled, after the timer expires. +** *Done:* An operation that has been executed. +* *Predecessor*: An (optional) dependency between operations. An operation can depend on another operation (its predecessor), forcing the execution order of these two operations. +* *Role*: +** *Admin:* An address (smart contract or EOA) that is in charge of granting the roles of Proposer and Executor. +** *Proposer:* An address (smart contract or EOA) that is in charge of scheduling (and cancelling) operations. +** *Executor:* An address (smart contract or EOA) that is in charge of executing operations once the timelock has expired. This role can be given to the zero address to allow anyone to execute operations. + +[[timelock-operation]] +==== Operation structure + +Operation executed by the xref:api:governance.adoc#TimelockController[`TimelockController`] can contain one or multiple subsequent calls. Depending on whether you need to multiple calls to be executed atomically, you can either use simple or batched operations. + +Both operations contain: + +* *Target*, the address of the smart contract that the timelock should operate on. +* *Value*, in wei, that should be sent with the transaction. Most of the time this will be 0. Ether can be deposited before-end or passed along when executing the transaction. +* *Data*, containing the encoded function selector and parameters of the call. This can be produced using a number of tools. For example, a maintenance operation granting role `ROLE` to `ACCOUNT` can be encoded using web3js as follows: + +```javascript +const data = timelock.contract.methods.grantRole(ROLE, ACCOUNT).encodeABI() +``` + +* *Predecessor*, that specifies a dependency between operations. This dependency is optional. Use `bytes32(0)` if the operation does not have any dependency. +* *Salt*, used to disambiguate two otherwise identical operations. This can be any random value. + +In the case of batched operations, `target`, `value` and `data` are specified as arrays, which must be of the same length. + +[[timelock-operation-lifecycle]] +==== Operation lifecycle + +Timelocked operations are identified by a unique id (their hash) and follow a specific lifecycle: + +`Unset` -> `Pending` -> `Pending` + `Ready` -> `Done` + +* By calling xref:api:governance.adoc#TimelockController-schedule-address-uint256-bytes-bytes32-bytes32-uint256-[`schedule`] (or xref:api:governance.adoc#TimelockController-scheduleBatch-address---uint256---bytes---bytes32-bytes32-uint256-[`scheduleBatch`]), a proposer moves the operation from the `Unset` to the `Pending` state. This starts a timer that must be longer than the minimum delay. The timer expires at a timestamp accessible through the xref:api:governance.adoc#TimelockController-getTimestamp-bytes32-[`getTimestamp`] method. +* Once the timer expires, the operation automatically gets the `Ready` state. At this point, it can be executed. +* By calling xref:api:governance.adoc#TimelockController-TimelockController-execute-address-uint256-bytes-bytes32-bytes32-[`execute`] (or xref:api:governance.adoc#TimelockController-executeBatch-address---uint256---bytes---bytes32-bytes32-[`executeBatch`]), an executor triggers the operation's underlying transactions and moves it to the `Done` state. If the operation has a predecessor, it has to be in the `Done` state for this transition to succeed. +* xref:api:governance.adoc#TimelockController-TimelockController-cancel-bytes32-[`cancel`] allows proposers to cancel any `Pending` operation. This resets the operation to the `Unset` state. It is thus possible for a proposer to re-schedule an operation that has been cancelled. In this case, the timer restarts when the operation is re-scheduled. + +Operations status can be queried using the functions: + +* xref:api:governance.adoc#TimelockController-isOperationPending-bytes32-[`isOperationPending(bytes32)`] +* xref:api:governance.adoc#TimelockController-isOperationReady-bytes32-[`isOperationReady(bytes32)`] +* xref:api:governance.adoc#TimelockController-isOperationDone-bytes32-[`isOperationDone(bytes32)`] + +[[timelock-roles]] +==== Roles + +[[timelock-admin]] +===== Admin + +The admins are in charge of managing proposers and executors. For the timelock to be self-governed, this role should only be given to the timelock itself. Upon deployment, the admin role can be granted to any address (in addition to the timelock itself). After further configuration and testing, this optional admin should renounce its role such that all further maintenance operations have to go through the timelock process. + +This role is identified by the *TIMELOCK_ADMIN_ROLE* value: `0x5f58e3a2316349923ce3780f8d587db2d72378aed66a8261c916544fa6846ca5` + +[[timelock-proposer]] +===== Proposer + +The proposers are in charge of scheduling (and cancelling) operations. This is a critical role, that should be given to governing entities. This could be an EOA, a multisig, or a DAO. + +WARNING: *Proposer fight:* Having multiple proposers, while providing redundancy in case one becomes unavailable, can be dangerous. As proposer have their say on all operations, they could cancel operations they disagree with, including operations to remove them for the proposers. + +This role is identified by the *PROPOSER_ROLE* value: `0xb09aa5aeb3702cfd50b6b62bc4532604938f21248a27a1d5ca736082b6819cc1` + +[[timelock-executor]] +===== Executor + +The executors are in charge of executing the operations scheduled by the proposers once the timelock expires. Logic dictates that multisig or DAO that are proposers should also be executors in order to guarantee operations that have been scheduled will eventually be executed. However, having additional executors can reduce the cost (the executing transaction does not require validation by the multisig or DAO that proposed it), while ensuring whoever is in charge of execution cannot trigger actions that have not been scheduled by the proposers. Alternatively, it is possible to allow _any_ address to execute a proposal once the timelock has expired by granting the executor role to the zero address. + +This role is identified by the *EXECUTOR_ROLE* value: `0xd8aa0f3194971a2a116679f7c2090f6939c8d4e01a2a8d7e41d55e5351469e63` + +WARNING: A live contract without at least one proposer and one executor is locked. Make sure these roles are filled by reliable entities before the deployer renounces its administrative rights in favour of the timelock contract itself. See the {AccessControl} documentation to learn more about role management. diff --git a/lib/openzeppelin-contracts/contracts/governance/TimelockController.sol b/lib/openzeppelin-contracts/contracts/governance/TimelockController.sol new file mode 100644 index 0000000..dac55d8 --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/governance/TimelockController.sol @@ -0,0 +1,412 @@ +// SPDX-License-Identifier: MIT +// OpenZeppelin Contracts (last updated v4.8.0) (governance/TimelockController.sol) + +pragma solidity ^0.8.0; + +import "../access/AccessControl.sol"; +import "../token/ERC721/IERC721Receiver.sol"; +import "../token/ERC1155/IERC1155Receiver.sol"; +import "../utils/Address.sol"; + +/** + * @dev Contract module which acts as a timelocked controller. When set as the + * owner of an `Ownable` smart contract, it enforces a timelock on all + * `onlyOwner` maintenance operations. This gives time for users of the + * controlled contract to exit before a potentially dangerous maintenance + * operation is applied. + * + * By default, this contract is self administered, meaning administration tasks + * have to go through the timelock process. The proposer (resp executor) role + * is in charge of proposing (resp executing) operations. A common use case is + * to position this {TimelockController} as the owner of a smart contract, with + * a multisig or a DAO as the sole proposer. + * + * _Available since v3.3._ + */ +contract TimelockController is AccessControl, IERC721Receiver, IERC1155Receiver { + bytes32 public constant TIMELOCK_ADMIN_ROLE = keccak256("TIMELOCK_ADMIN_ROLE"); + bytes32 public constant PROPOSER_ROLE = keccak256("PROPOSER_ROLE"); + bytes32 public constant EXECUTOR_ROLE = keccak256("EXECUTOR_ROLE"); + bytes32 public constant CANCELLER_ROLE = keccak256("CANCELLER_ROLE"); + uint256 internal constant _DONE_TIMESTAMP = uint256(1); + + mapping(bytes32 => uint256) private _timestamps; + uint256 private _minDelay; + + /** + * @dev Emitted when a call is scheduled as part of operation `id`. + */ + event CallScheduled( + bytes32 indexed id, + uint256 indexed index, + address target, + uint256 value, + bytes data, + bytes32 predecessor, + uint256 delay + ); + + /** + * @dev Emitted when a call is performed as part of operation `id`. + */ + event CallExecuted(bytes32 indexed id, uint256 indexed index, address target, uint256 value, bytes data); + + /** + * @dev Emitted when operation `id` is cancelled. + */ + event Cancelled(bytes32 indexed id); + + /** + * @dev Emitted when the minimum delay for future operations is modified. + */ + event MinDelayChange(uint256 oldDuration, uint256 newDuration); + + /** + * @dev Initializes the contract with the following parameters: + * + * - `minDelay`: initial minimum delay for operations + * - `proposers`: accounts to be granted proposer and canceller roles + * - `executors`: accounts to be granted executor role + * - `admin`: optional account to be granted admin role; disable with zero address + * + * IMPORTANT: The optional admin can aid with initial configuration of roles after deployment + * without being subject to delay, but this role should be subsequently renounced in favor of + * administration through timelocked proposals. Previous versions of this contract would assign + * this admin to the deployer automatically and should be renounced as well. + */ + constructor(uint256 minDelay, address[] memory proposers, address[] memory executors, address admin) { + _setRoleAdmin(TIMELOCK_ADMIN_ROLE, TIMELOCK_ADMIN_ROLE); + _setRoleAdmin(PROPOSER_ROLE, TIMELOCK_ADMIN_ROLE); + _setRoleAdmin(EXECUTOR_ROLE, TIMELOCK_ADMIN_ROLE); + _setRoleAdmin(CANCELLER_ROLE, TIMELOCK_ADMIN_ROLE); + + // self administration + _setupRole(TIMELOCK_ADMIN_ROLE, address(this)); + + // optional admin + if (admin != address(0)) { + _setupRole(TIMELOCK_ADMIN_ROLE, admin); + } + + // register proposers and cancellers + for (uint256 i = 0; i < proposers.length; ++i) { + _setupRole(PROPOSER_ROLE, proposers[i]); + _setupRole(CANCELLER_ROLE, proposers[i]); + } + + // register executors + for (uint256 i = 0; i < executors.length; ++i) { + _setupRole(EXECUTOR_ROLE, executors[i]); + } + + _minDelay = minDelay; + emit MinDelayChange(0, minDelay); + } + + /** + * @dev Modifier to make a function callable only by a certain role. In + * addition to checking the sender's role, `address(0)` 's role is also + * considered. Granting a role to `address(0)` is equivalent to enabling + * this role for everyone. + */ + modifier onlyRoleOrOpenRole(bytes32 role) { + if (!hasRole(role, address(0))) { + _checkRole(role, _msgSender()); + } + _; + } + + /** + * @dev Contract might receive/hold ETH as part of the maintenance process. + */ + receive() external payable {} + + /** + * @dev See {IERC165-supportsInterface}. + */ + function supportsInterface(bytes4 interfaceId) public view virtual override(IERC165, AccessControl) returns (bool) { + return interfaceId == type(IERC1155Receiver).interfaceId || super.supportsInterface(interfaceId); + } + + /** + * @dev Returns whether an id correspond to a registered operation. This + * includes both Pending, Ready and Done operations. + */ + function isOperation(bytes32 id) public view virtual returns (bool registered) { + return getTimestamp(id) > 0; + } + + /** + * @dev Returns whether an operation is pending or not. + */ + function isOperationPending(bytes32 id) public view virtual returns (bool pending) { + return getTimestamp(id) > _DONE_TIMESTAMP; + } + + /** + * @dev Returns whether an operation is ready or not. + */ + function isOperationReady(bytes32 id) public view virtual returns (bool ready) { + uint256 timestamp = getTimestamp(id); + return timestamp > _DONE_TIMESTAMP && timestamp <= block.timestamp; + } + + /** + * @dev Returns whether an operation is done or not. + */ + function isOperationDone(bytes32 id) public view virtual returns (bool done) { + return getTimestamp(id) == _DONE_TIMESTAMP; + } + + /** + * @dev Returns the timestamp at which an operation becomes ready (0 for + * unset operations, 1 for done operations). + */ + function getTimestamp(bytes32 id) public view virtual returns (uint256 timestamp) { + return _timestamps[id]; + } + + /** + * @dev Returns the minimum delay for an operation to become valid. + * + * This value can be changed by executing an operation that calls `updateDelay`. + */ + function getMinDelay() public view virtual returns (uint256 duration) { + return _minDelay; + } + + /** + * @dev Returns the identifier of an operation containing a single + * transaction. + */ + function hashOperation( + address target, + uint256 value, + bytes calldata data, + bytes32 predecessor, + bytes32 salt + ) public pure virtual returns (bytes32 hash) { + return keccak256(abi.encode(target, value, data, predecessor, salt)); + } + + /** + * @dev Returns the identifier of an operation containing a batch of + * transactions. + */ + function hashOperationBatch( + address[] calldata targets, + uint256[] calldata values, + bytes[] calldata payloads, + bytes32 predecessor, + bytes32 salt + ) public pure virtual returns (bytes32 hash) { + return keccak256(abi.encode(targets, values, payloads, predecessor, salt)); + } + + /** + * @dev Schedule an operation containing a single transaction. + * + * Emits a {CallScheduled} event. + * + * Requirements: + * + * - the caller must have the 'proposer' role. + */ + function schedule( + address target, + uint256 value, + bytes calldata data, + bytes32 predecessor, + bytes32 salt, + uint256 delay + ) public virtual onlyRole(PROPOSER_ROLE) { + bytes32 id = hashOperation(target, value, data, predecessor, salt); + _schedule(id, delay); + emit CallScheduled(id, 0, target, value, data, predecessor, delay); + } + + /** + * @dev Schedule an operation containing a batch of transactions. + * + * Emits one {CallScheduled} event per transaction in the batch. + * + * Requirements: + * + * - the caller must have the 'proposer' role. + */ + function scheduleBatch( + address[] calldata targets, + uint256[] calldata values, + bytes[] calldata payloads, + bytes32 predecessor, + bytes32 salt, + uint256 delay + ) public virtual onlyRole(PROPOSER_ROLE) { + require(targets.length == values.length, "TimelockController: length mismatch"); + require(targets.length == payloads.length, "TimelockController: length mismatch"); + + bytes32 id = hashOperationBatch(targets, values, payloads, predecessor, salt); + _schedule(id, delay); + for (uint256 i = 0; i < targets.length; ++i) { + emit CallScheduled(id, i, targets[i], values[i], payloads[i], predecessor, delay); + } + } + + /** + * @dev Schedule an operation that is to become valid after a given delay. + */ + function _schedule(bytes32 id, uint256 delay) private { + require(!isOperation(id), "TimelockController: operation already scheduled"); + require(delay >= getMinDelay(), "TimelockController: insufficient delay"); + _timestamps[id] = block.timestamp + delay; + } + + /** + * @dev Cancel an operation. + * + * Requirements: + * + * - the caller must have the 'canceller' role. + */ + function cancel(bytes32 id) public virtual onlyRole(CANCELLER_ROLE) { + require(isOperationPending(id), "TimelockController: operation cannot be cancelled"); + delete _timestamps[id]; + + emit Cancelled(id); + } + + /** + * @dev Execute an (ready) operation containing a single transaction. + * + * Emits a {CallExecuted} event. + * + * Requirements: + * + * - the caller must have the 'executor' role. + */ + // This function can reenter, but it doesn't pose a risk because _afterCall checks that the proposal is pending, + // thus any modifications to the operation during reentrancy should be caught. + // slither-disable-next-line reentrancy-eth + function execute( + address target, + uint256 value, + bytes calldata payload, + bytes32 predecessor, + bytes32 salt + ) public payable virtual onlyRoleOrOpenRole(EXECUTOR_ROLE) { + bytes32 id = hashOperation(target, value, payload, predecessor, salt); + + _beforeCall(id, predecessor); + _execute(target, value, payload); + emit CallExecuted(id, 0, target, value, payload); + _afterCall(id); + } + + /** + * @dev Execute an (ready) operation containing a batch of transactions. + * + * Emits one {CallExecuted} event per transaction in the batch. + * + * Requirements: + * + * - the caller must have the 'executor' role. + */ + // This function can reenter, but it doesn't pose a risk because _afterCall checks that the proposal is pending, + // thus any modifications to the operation during reentrancy should be caught. + // slither-disable-next-line reentrancy-eth + function executeBatch( + address[] calldata targets, + uint256[] calldata values, + bytes[] calldata payloads, + bytes32 predecessor, + bytes32 salt + ) public payable virtual onlyRoleOrOpenRole(EXECUTOR_ROLE) { + require(targets.length == values.length, "TimelockController: length mismatch"); + require(targets.length == payloads.length, "TimelockController: length mismatch"); + + bytes32 id = hashOperationBatch(targets, values, payloads, predecessor, salt); + + _beforeCall(id, predecessor); + for (uint256 i = 0; i < targets.length; ++i) { + address target = targets[i]; + uint256 value = values[i]; + bytes calldata payload = payloads[i]; + _execute(target, value, payload); + emit CallExecuted(id, i, target, value, payload); + } + _afterCall(id); + } + + /** + * @dev Execute an operation's call. + */ + function _execute(address target, uint256 value, bytes calldata data) internal virtual { + (bool success, ) = target.call{value: value}(data); + require(success, "TimelockController: underlying transaction reverted"); + } + + /** + * @dev Checks before execution of an operation's calls. + */ + function _beforeCall(bytes32 id, bytes32 predecessor) private view { + require(isOperationReady(id), "TimelockController: operation is not ready"); + require(predecessor == bytes32(0) || isOperationDone(predecessor), "TimelockController: missing dependency"); + } + + /** + * @dev Checks after execution of an operation's calls. + */ + function _afterCall(bytes32 id) private { + require(isOperationReady(id), "TimelockController: operation is not ready"); + _timestamps[id] = _DONE_TIMESTAMP; + } + + /** + * @dev Changes the minimum timelock duration for future operations. + * + * Emits a {MinDelayChange} event. + * + * Requirements: + * + * - the caller must be the timelock itself. This can only be achieved by scheduling and later executing + * an operation where the timelock is the target and the data is the ABI-encoded call to this function. + */ + function updateDelay(uint256 newDelay) external virtual { + require(msg.sender == address(this), "TimelockController: caller must be timelock"); + emit MinDelayChange(_minDelay, newDelay); + _minDelay = newDelay; + } + + /** + * @dev See {IERC721Receiver-onERC721Received}. + */ + function onERC721Received(address, address, uint256, bytes memory) public virtual override returns (bytes4) { + return this.onERC721Received.selector; + } + + /** + * @dev See {IERC1155Receiver-onERC1155Received}. + */ + function onERC1155Received( + address, + address, + uint256, + uint256, + bytes memory + ) public virtual override returns (bytes4) { + return this.onERC1155Received.selector; + } + + /** + * @dev See {IERC1155Receiver-onERC1155BatchReceived}. + */ + function onERC1155BatchReceived( + address, + address, + uint256[] memory, + uint256[] memory, + bytes memory + ) public virtual override returns (bytes4) { + return this.onERC1155BatchReceived.selector; + } +} diff --git a/lib/openzeppelin-contracts/contracts/governance/compatibility/GovernorCompatibilityBravo.sol b/lib/openzeppelin-contracts/contracts/governance/compatibility/GovernorCompatibilityBravo.sol new file mode 100644 index 0000000..8d74742 --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/governance/compatibility/GovernorCompatibilityBravo.sol @@ -0,0 +1,288 @@ +// SPDX-License-Identifier: MIT +// OpenZeppelin Contracts (last updated v4.8.0) (governance/compatibility/GovernorCompatibilityBravo.sol) + +pragma solidity ^0.8.0; + +import "../../utils/math/SafeCast.sol"; +import "../extensions/IGovernorTimelock.sol"; +import "../Governor.sol"; +import "./IGovernorCompatibilityBravo.sol"; + +/** + * @dev Compatibility layer that implements GovernorBravo compatibility on top of {Governor}. + * + * This compatibility layer includes a voting system and requires a {IGovernorTimelock} compatible module to be added + * through inheritance. It does not include token bindings, nor does it include any variable upgrade patterns. + * + * NOTE: When using this module, you may need to enable the Solidity optimizer to avoid hitting the contract size limit. + * + * _Available since v4.3._ + */ +abstract contract GovernorCompatibilityBravo is IGovernorTimelock, IGovernorCompatibilityBravo, Governor { + enum VoteType { + Against, + For, + Abstain + } + + struct ProposalDetails { + address proposer; + address[] targets; + uint256[] values; + string[] signatures; + bytes[] calldatas; + uint256 forVotes; + uint256 againstVotes; + uint256 abstainVotes; + mapping(address => Receipt) receipts; + bytes32 descriptionHash; + } + + mapping(uint256 => ProposalDetails) private _proposalDetails; + + // solhint-disable-next-line func-name-mixedcase + function COUNTING_MODE() public pure virtual override returns (string memory) { + return "support=bravo&quorum=bravo"; + } + + // ============================================== Proposal lifecycle ============================================== + /** + * @dev See {IGovernor-propose}. + */ + function propose( + address[] memory targets, + uint256[] memory values, + bytes[] memory calldatas, + string memory description + ) public virtual override(IGovernor, Governor) returns (uint256) { + _storeProposal(_msgSender(), targets, values, new string[](calldatas.length), calldatas, description); + return super.propose(targets, values, calldatas, description); + } + + /** + * @dev See {IGovernorCompatibilityBravo-propose}. + */ + function propose( + address[] memory targets, + uint256[] memory values, + string[] memory signatures, + bytes[] memory calldatas, + string memory description + ) public virtual override returns (uint256) { + _storeProposal(_msgSender(), targets, values, signatures, calldatas, description); + return propose(targets, values, _encodeCalldata(signatures, calldatas), description); + } + + /** + * @dev See {IGovernorCompatibilityBravo-queue}. + */ + function queue(uint256 proposalId) public virtual override { + ProposalDetails storage details = _proposalDetails[proposalId]; + queue( + details.targets, + details.values, + _encodeCalldata(details.signatures, details.calldatas), + details.descriptionHash + ); + } + + /** + * @dev See {IGovernorCompatibilityBravo-execute}. + */ + function execute(uint256 proposalId) public payable virtual override { + ProposalDetails storage details = _proposalDetails[proposalId]; + execute( + details.targets, + details.values, + _encodeCalldata(details.signatures, details.calldatas), + details.descriptionHash + ); + } + + function cancel(uint256 proposalId) public virtual override { + ProposalDetails storage details = _proposalDetails[proposalId]; + + require( + _msgSender() == details.proposer || getVotes(details.proposer, block.number - 1) < proposalThreshold(), + "GovernorBravo: proposer above threshold" + ); + + _cancel( + details.targets, + details.values, + _encodeCalldata(details.signatures, details.calldatas), + details.descriptionHash + ); + } + + /** + * @dev Encodes calldatas with optional function signature. + */ + function _encodeCalldata( + string[] memory signatures, + bytes[] memory calldatas + ) private pure returns (bytes[] memory) { + bytes[] memory fullcalldatas = new bytes[](calldatas.length); + + for (uint256 i = 0; i < signatures.length; ++i) { + fullcalldatas[i] = bytes(signatures[i]).length == 0 + ? calldatas[i] + : abi.encodePacked(bytes4(keccak256(bytes(signatures[i]))), calldatas[i]); + } + + return fullcalldatas; + } + + /** + * @dev Store proposal metadata for later lookup + */ + function _storeProposal( + address proposer, + address[] memory targets, + uint256[] memory values, + string[] memory signatures, + bytes[] memory calldatas, + string memory description + ) private { + bytes32 descriptionHash = keccak256(bytes(description)); + uint256 proposalId = hashProposal(targets, values, _encodeCalldata(signatures, calldatas), descriptionHash); + + ProposalDetails storage details = _proposalDetails[proposalId]; + if (details.descriptionHash == bytes32(0)) { + details.proposer = proposer; + details.targets = targets; + details.values = values; + details.signatures = signatures; + details.calldatas = calldatas; + details.descriptionHash = descriptionHash; + } + } + + // ==================================================== Views ===================================================== + /** + * @dev See {IGovernorCompatibilityBravo-proposals}. + */ + function proposals( + uint256 proposalId + ) + public + view + virtual + override + returns ( + uint256 id, + address proposer, + uint256 eta, + uint256 startBlock, + uint256 endBlock, + uint256 forVotes, + uint256 againstVotes, + uint256 abstainVotes, + bool canceled, + bool executed + ) + { + id = proposalId; + eta = proposalEta(proposalId); + startBlock = proposalSnapshot(proposalId); + endBlock = proposalDeadline(proposalId); + + ProposalDetails storage details = _proposalDetails[proposalId]; + proposer = details.proposer; + forVotes = details.forVotes; + againstVotes = details.againstVotes; + abstainVotes = details.abstainVotes; + + ProposalState status = state(proposalId); + canceled = status == ProposalState.Canceled; + executed = status == ProposalState.Executed; + } + + /** + * @dev See {IGovernorCompatibilityBravo-getActions}. + */ + function getActions( + uint256 proposalId + ) + public + view + virtual + override + returns ( + address[] memory targets, + uint256[] memory values, + string[] memory signatures, + bytes[] memory calldatas + ) + { + ProposalDetails storage details = _proposalDetails[proposalId]; + return (details.targets, details.values, details.signatures, details.calldatas); + } + + /** + * @dev See {IGovernorCompatibilityBravo-getReceipt}. + */ + function getReceipt(uint256 proposalId, address voter) public view virtual override returns (Receipt memory) { + return _proposalDetails[proposalId].receipts[voter]; + } + + /** + * @dev See {IGovernorCompatibilityBravo-quorumVotes}. + */ + function quorumVotes() public view virtual override returns (uint256) { + return quorum(block.number - 1); + } + + // ==================================================== Voting ==================================================== + /** + * @dev See {IGovernor-hasVoted}. + */ + function hasVoted(uint256 proposalId, address account) public view virtual override returns (bool) { + return _proposalDetails[proposalId].receipts[account].hasVoted; + } + + /** + * @dev See {Governor-_quorumReached}. In this module, only forVotes count toward the quorum. + */ + function _quorumReached(uint256 proposalId) internal view virtual override returns (bool) { + ProposalDetails storage details = _proposalDetails[proposalId]; + return quorum(proposalSnapshot(proposalId)) <= details.forVotes; + } + + /** + * @dev See {Governor-_voteSucceeded}. In this module, the forVotes must be strictly over the againstVotes. + */ + function _voteSucceeded(uint256 proposalId) internal view virtual override returns (bool) { + ProposalDetails storage details = _proposalDetails[proposalId]; + return details.forVotes > details.againstVotes; + } + + /** + * @dev See {Governor-_countVote}. In this module, the support follows Governor Bravo. + */ + function _countVote( + uint256 proposalId, + address account, + uint8 support, + uint256 weight, + bytes memory // params + ) internal virtual override { + ProposalDetails storage details = _proposalDetails[proposalId]; + Receipt storage receipt = details.receipts[account]; + + require(!receipt.hasVoted, "GovernorCompatibilityBravo: vote already cast"); + receipt.hasVoted = true; + receipt.support = support; + receipt.votes = SafeCast.toUint96(weight); + + if (support == uint8(VoteType.Against)) { + details.againstVotes += weight; + } else if (support == uint8(VoteType.For)) { + details.forVotes += weight; + } else if (support == uint8(VoteType.Abstain)) { + details.abstainVotes += weight; + } else { + revert("GovernorCompatibilityBravo: invalid vote type"); + } + } +} diff --git a/lib/openzeppelin-contracts/contracts/governance/compatibility/IGovernorCompatibilityBravo.sol b/lib/openzeppelin-contracts/contracts/governance/compatibility/IGovernorCompatibilityBravo.sol new file mode 100644 index 0000000..d1ec033 --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/governance/compatibility/IGovernorCompatibilityBravo.sol @@ -0,0 +1,118 @@ +// SPDX-License-Identifier: MIT +// OpenZeppelin Contracts v4.4.1 (governance/compatibility/IGovernorCompatibilityBravo.sol) + +pragma solidity ^0.8.0; + +import "../IGovernor.sol"; + +/** + * @dev Interface extension that adds missing functions to the {Governor} core to provide `GovernorBravo` compatibility. + * + * _Available since v4.3._ + */ +abstract contract IGovernorCompatibilityBravo is IGovernor { + /** + * @dev Proposal structure from Compound Governor Bravo. Not actually used by the compatibility layer, as + * {{proposal}} returns a very different structure. + */ + struct Proposal { + uint256 id; + address proposer; + uint256 eta; + address[] targets; + uint256[] values; + string[] signatures; + bytes[] calldatas; + uint256 startBlock; + uint256 endBlock; + uint256 forVotes; + uint256 againstVotes; + uint256 abstainVotes; + bool canceled; + bool executed; + mapping(address => Receipt) receipts; + } + + /** + * @dev Receipt structure from Compound Governor Bravo + */ + struct Receipt { + bool hasVoted; + uint8 support; + uint96 votes; + } + + /** + * @dev Part of the Governor Bravo's interface. + */ + function quorumVotes() public view virtual returns (uint256); + + /** + * @dev Part of the Governor Bravo's interface: _"The official record of all proposals ever proposed"_. + */ + function proposals( + uint256 + ) + public + view + virtual + returns ( + uint256 id, + address proposer, + uint256 eta, + uint256 startBlock, + uint256 endBlock, + uint256 forVotes, + uint256 againstVotes, + uint256 abstainVotes, + bool canceled, + bool executed + ); + + /** + * @dev Part of the Governor Bravo's interface: _"Function used to propose a new proposal"_. + */ + function propose( + address[] memory targets, + uint256[] memory values, + string[] memory signatures, + bytes[] memory calldatas, + string memory description + ) public virtual returns (uint256); + + /** + * @dev Part of the Governor Bravo's interface: _"Queues a proposal of state succeeded"_. + */ + function queue(uint256 proposalId) public virtual; + + /** + * @dev Part of the Governor Bravo's interface: _"Executes a queued proposal if eta has passed"_. + */ + function execute(uint256 proposalId) public payable virtual; + + /** + * @dev Cancels a proposal only if sender is the proposer, or proposer delegates dropped below proposal threshold. + */ + function cancel(uint256 proposalId) public virtual; + + /** + * @dev Part of the Governor Bravo's interface: _"Gets actions of a proposal"_. + */ + function getActions( + uint256 proposalId + ) + public + view + virtual + returns ( + address[] memory targets, + uint256[] memory values, + string[] memory signatures, + bytes[] memory calldatas + ); + + /** + * @dev Part of the Governor Bravo's interface: _"Gets the receipt for a voter on a given proposal"_. + */ + function getReceipt(uint256 proposalId, address voter) public view virtual returns (Receipt memory); +} diff --git a/lib/openzeppelin-contracts/contracts/governance/extensions/GovernorCountingSimple.sol b/lib/openzeppelin-contracts/contracts/governance/extensions/GovernorCountingSimple.sol new file mode 100644 index 0000000..f3eea9d --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/governance/extensions/GovernorCountingSimple.sol @@ -0,0 +1,100 @@ +// SPDX-License-Identifier: MIT +// OpenZeppelin Contracts (last updated v4.8.0) (governance/extensions/GovernorCountingSimple.sol) + +pragma solidity ^0.8.0; + +import "../Governor.sol"; + +/** + * @dev Extension of {Governor} for simple, 3 options, vote counting. + * + * _Available since v4.3._ + */ +abstract contract GovernorCountingSimple is Governor { + /** + * @dev Supported vote types. Matches Governor Bravo ordering. + */ + enum VoteType { + Against, + For, + Abstain + } + + struct ProposalVote { + uint256 againstVotes; + uint256 forVotes; + uint256 abstainVotes; + mapping(address => bool) hasVoted; + } + + mapping(uint256 => ProposalVote) private _proposalVotes; + + /** + * @dev See {IGovernor-COUNTING_MODE}. + */ + // solhint-disable-next-line func-name-mixedcase + function COUNTING_MODE() public pure virtual override returns (string memory) { + return "support=bravo&quorum=for,abstain"; + } + + /** + * @dev See {IGovernor-hasVoted}. + */ + function hasVoted(uint256 proposalId, address account) public view virtual override returns (bool) { + return _proposalVotes[proposalId].hasVoted[account]; + } + + /** + * @dev Accessor to the internal vote counts. + */ + function proposalVotes( + uint256 proposalId + ) public view virtual returns (uint256 againstVotes, uint256 forVotes, uint256 abstainVotes) { + ProposalVote storage proposalVote = _proposalVotes[proposalId]; + return (proposalVote.againstVotes, proposalVote.forVotes, proposalVote.abstainVotes); + } + + /** + * @dev See {Governor-_quorumReached}. + */ + function _quorumReached(uint256 proposalId) internal view virtual override returns (bool) { + ProposalVote storage proposalVote = _proposalVotes[proposalId]; + + return quorum(proposalSnapshot(proposalId)) <= proposalVote.forVotes + proposalVote.abstainVotes; + } + + /** + * @dev See {Governor-_voteSucceeded}. In this module, the forVotes must be strictly over the againstVotes. + */ + function _voteSucceeded(uint256 proposalId) internal view virtual override returns (bool) { + ProposalVote storage proposalVote = _proposalVotes[proposalId]; + + return proposalVote.forVotes > proposalVote.againstVotes; + } + + /** + * @dev See {Governor-_countVote}. In this module, the support follows the `VoteType` enum (from Governor Bravo). + */ + function _countVote( + uint256 proposalId, + address account, + uint8 support, + uint256 weight, + bytes memory // params + ) internal virtual override { + ProposalVote storage proposalVote = _proposalVotes[proposalId]; + + require(!proposalVote.hasVoted[account], "GovernorVotingSimple: vote already cast"); + proposalVote.hasVoted[account] = true; + + if (support == uint8(VoteType.Against)) { + proposalVote.againstVotes += weight; + } else if (support == uint8(VoteType.For)) { + proposalVote.forVotes += weight; + } else if (support == uint8(VoteType.Abstain)) { + proposalVote.abstainVotes += weight; + } else { + revert("GovernorVotingSimple: invalid value for enum VoteType"); + } + } +} diff --git a/lib/openzeppelin-contracts/contracts/governance/extensions/GovernorPreventLateQuorum.sol b/lib/openzeppelin-contracts/contracts/governance/extensions/GovernorPreventLateQuorum.sol new file mode 100644 index 0000000..a26bbf0 --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/governance/extensions/GovernorPreventLateQuorum.sol @@ -0,0 +1,108 @@ +// SPDX-License-Identifier: MIT +// OpenZeppelin Contracts (last updated v4.6.0) (governance/extensions/GovernorPreventLateQuorum.sol) + +pragma solidity ^0.8.0; + +import "../Governor.sol"; +import "../../utils/math/Math.sol"; + +/** + * @dev A module that ensures there is a minimum voting period after quorum is reached. This prevents a large voter from + * swaying a vote and triggering quorum at the last minute, by ensuring there is always time for other voters to react + * and try to oppose the decision. + * + * If a vote causes quorum to be reached, the proposal's voting period may be extended so that it does not end before at + * least a given number of blocks have passed (the "vote extension" parameter). This parameter can be set by the + * governance executor (e.g. through a governance proposal). + * + * _Available since v4.5._ + */ +abstract contract GovernorPreventLateQuorum is Governor { + using SafeCast for uint256; + using Timers for Timers.BlockNumber; + + uint64 private _voteExtension; + mapping(uint256 => Timers.BlockNumber) private _extendedDeadlines; + + /// @dev Emitted when a proposal deadline is pushed back due to reaching quorum late in its voting period. + event ProposalExtended(uint256 indexed proposalId, uint64 extendedDeadline); + + /// @dev Emitted when the {lateQuorumVoteExtension} parameter is changed. + event LateQuorumVoteExtensionSet(uint64 oldVoteExtension, uint64 newVoteExtension); + + /** + * @dev Initializes the vote extension parameter: the number of blocks that are required to pass since a proposal + * reaches quorum until its voting period ends. If necessary the voting period will be extended beyond the one set + * at proposal creation. + */ + constructor(uint64 initialVoteExtension) { + _setLateQuorumVoteExtension(initialVoteExtension); + } + + /** + * @dev Returns the proposal deadline, which may have been extended beyond that set at proposal creation, if the + * proposal reached quorum late in the voting period. See {Governor-proposalDeadline}. + */ + function proposalDeadline(uint256 proposalId) public view virtual override returns (uint256) { + return Math.max(super.proposalDeadline(proposalId), _extendedDeadlines[proposalId].getDeadline()); + } + + /** + * @dev Casts a vote and detects if it caused quorum to be reached, potentially extending the voting period. See + * {Governor-_castVote}. + * + * May emit a {ProposalExtended} event. + */ + function _castVote( + uint256 proposalId, + address account, + uint8 support, + string memory reason, + bytes memory params + ) internal virtual override returns (uint256) { + uint256 result = super._castVote(proposalId, account, support, reason, params); + + Timers.BlockNumber storage extendedDeadline = _extendedDeadlines[proposalId]; + + if (extendedDeadline.isUnset() && _quorumReached(proposalId)) { + uint64 extendedDeadlineValue = block.number.toUint64() + lateQuorumVoteExtension(); + + if (extendedDeadlineValue > proposalDeadline(proposalId)) { + emit ProposalExtended(proposalId, extendedDeadlineValue); + } + + extendedDeadline.setDeadline(extendedDeadlineValue); + } + + return result; + } + + /** + * @dev Returns the current value of the vote extension parameter: the number of blocks that are required to pass + * from the time a proposal reaches quorum until its voting period ends. + */ + function lateQuorumVoteExtension() public view virtual returns (uint64) { + return _voteExtension; + } + + /** + * @dev Changes the {lateQuorumVoteExtension}. This operation can only be performed by the governance executor, + * generally through a governance proposal. + * + * Emits a {LateQuorumVoteExtensionSet} event. + */ + function setLateQuorumVoteExtension(uint64 newVoteExtension) public virtual onlyGovernance { + _setLateQuorumVoteExtension(newVoteExtension); + } + + /** + * @dev Changes the {lateQuorumVoteExtension}. This is an internal function that can be exposed in a public function + * like {setLateQuorumVoteExtension} if another access control mechanism is needed. + * + * Emits a {LateQuorumVoteExtensionSet} event. + */ + function _setLateQuorumVoteExtension(uint64 newVoteExtension) internal virtual { + emit LateQuorumVoteExtensionSet(_voteExtension, newVoteExtension); + _voteExtension = newVoteExtension; + } +} diff --git a/lib/openzeppelin-contracts/contracts/governance/extensions/GovernorProposalThreshold.sol b/lib/openzeppelin-contracts/contracts/governance/extensions/GovernorProposalThreshold.sol new file mode 100644 index 0000000..3feebac --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/governance/extensions/GovernorProposalThreshold.sol @@ -0,0 +1,23 @@ +// SPDX-License-Identifier: MIT +// OpenZeppelin Contracts v4.4.1 (governance/extensions/GovernorProposalThreshold.sol) + +pragma solidity ^0.8.0; + +import "../Governor.sol"; + +/** + * @dev Extension of {Governor} for proposal restriction to token holders with a minimum balance. + * + * _Available since v4.3._ + * _Deprecated since v4.4._ + */ +abstract contract GovernorProposalThreshold is Governor { + function propose( + address[] memory targets, + uint256[] memory values, + bytes[] memory calldatas, + string memory description + ) public virtual override returns (uint256) { + return super.propose(targets, values, calldatas, description); + } +} diff --git a/lib/openzeppelin-contracts/contracts/governance/extensions/GovernorSettings.sol b/lib/openzeppelin-contracts/contracts/governance/extensions/GovernorSettings.sol new file mode 100644 index 0000000..527f41c --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/governance/extensions/GovernorSettings.sol @@ -0,0 +1,110 @@ +// SPDX-License-Identifier: MIT +// OpenZeppelin Contracts v4.4.1 (governance/extensions/GovernorSettings.sol) + +pragma solidity ^0.8.0; + +import "../Governor.sol"; + +/** + * @dev Extension of {Governor} for settings updatable through governance. + * + * _Available since v4.4._ + */ +abstract contract GovernorSettings is Governor { + uint256 private _votingDelay; + uint256 private _votingPeriod; + uint256 private _proposalThreshold; + + event VotingDelaySet(uint256 oldVotingDelay, uint256 newVotingDelay); + event VotingPeriodSet(uint256 oldVotingPeriod, uint256 newVotingPeriod); + event ProposalThresholdSet(uint256 oldProposalThreshold, uint256 newProposalThreshold); + + /** + * @dev Initialize the governance parameters. + */ + constructor(uint256 initialVotingDelay, uint256 initialVotingPeriod, uint256 initialProposalThreshold) { + _setVotingDelay(initialVotingDelay); + _setVotingPeriod(initialVotingPeriod); + _setProposalThreshold(initialProposalThreshold); + } + + /** + * @dev See {IGovernor-votingDelay}. + */ + function votingDelay() public view virtual override returns (uint256) { + return _votingDelay; + } + + /** + * @dev See {IGovernor-votingPeriod}. + */ + function votingPeriod() public view virtual override returns (uint256) { + return _votingPeriod; + } + + /** + * @dev See {Governor-proposalThreshold}. + */ + function proposalThreshold() public view virtual override returns (uint256) { + return _proposalThreshold; + } + + /** + * @dev Update the voting delay. This operation can only be performed through a governance proposal. + * + * Emits a {VotingDelaySet} event. + */ + function setVotingDelay(uint256 newVotingDelay) public virtual onlyGovernance { + _setVotingDelay(newVotingDelay); + } + + /** + * @dev Update the voting period. This operation can only be performed through a governance proposal. + * + * Emits a {VotingPeriodSet} event. + */ + function setVotingPeriod(uint256 newVotingPeriod) public virtual onlyGovernance { + _setVotingPeriod(newVotingPeriod); + } + + /** + * @dev Update the proposal threshold. This operation can only be performed through a governance proposal. + * + * Emits a {ProposalThresholdSet} event. + */ + function setProposalThreshold(uint256 newProposalThreshold) public virtual onlyGovernance { + _setProposalThreshold(newProposalThreshold); + } + + /** + * @dev Internal setter for the voting delay. + * + * Emits a {VotingDelaySet} event. + */ + function _setVotingDelay(uint256 newVotingDelay) internal virtual { + emit VotingDelaySet(_votingDelay, newVotingDelay); + _votingDelay = newVotingDelay; + } + + /** + * @dev Internal setter for the voting period. + * + * Emits a {VotingPeriodSet} event. + */ + function _setVotingPeriod(uint256 newVotingPeriod) internal virtual { + // voting period must be at least one block long + require(newVotingPeriod > 0, "GovernorSettings: voting period too low"); + emit VotingPeriodSet(_votingPeriod, newVotingPeriod); + _votingPeriod = newVotingPeriod; + } + + /** + * @dev Internal setter for the proposal threshold. + * + * Emits a {ProposalThresholdSet} event. + */ + function _setProposalThreshold(uint256 newProposalThreshold) internal virtual { + emit ProposalThresholdSet(_proposalThreshold, newProposalThreshold); + _proposalThreshold = newProposalThreshold; + } +} diff --git a/lib/openzeppelin-contracts/contracts/governance/extensions/GovernorTimelockCompound.sol b/lib/openzeppelin-contracts/contracts/governance/extensions/GovernorTimelockCompound.sol new file mode 100644 index 0000000..2fa539e --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/governance/extensions/GovernorTimelockCompound.sol @@ -0,0 +1,193 @@ +// SPDX-License-Identifier: MIT +// OpenZeppelin Contracts (last updated v4.6.0) (governance/extensions/GovernorTimelockCompound.sol) + +pragma solidity ^0.8.0; + +import "./IGovernorTimelock.sol"; +import "../Governor.sol"; +import "../../utils/math/SafeCast.sol"; +import "../../vendor/compound/ICompoundTimelock.sol"; + +/** + * @dev Extension of {Governor} that binds the execution process to a Compound Timelock. This adds a delay, enforced by + * the external timelock to all successful proposal (in addition to the voting duration). The {Governor} needs to be + * the admin of the timelock for any operation to be performed. A public, unrestricted, + * {GovernorTimelockCompound-__acceptAdmin} is available to accept ownership of the timelock. + * + * Using this model means the proposal will be operated by the {TimelockController} and not by the {Governor}. Thus, + * the assets and permissions must be attached to the {TimelockController}. Any asset sent to the {Governor} will be + * inaccessible. + * + * _Available since v4.3._ + */ +abstract contract GovernorTimelockCompound is IGovernorTimelock, Governor { + using SafeCast for uint256; + using Timers for Timers.Timestamp; + + struct ProposalTimelock { + Timers.Timestamp timer; + } + + ICompoundTimelock private _timelock; + + mapping(uint256 => ProposalTimelock) private _proposalTimelocks; + + /** + * @dev Emitted when the timelock controller used for proposal execution is modified. + */ + event TimelockChange(address oldTimelock, address newTimelock); + + /** + * @dev Set the timelock. + */ + constructor(ICompoundTimelock timelockAddress) { + _updateTimelock(timelockAddress); + } + + /** + * @dev See {IERC165-supportsInterface}. + */ + function supportsInterface(bytes4 interfaceId) public view virtual override(IERC165, Governor) returns (bool) { + return interfaceId == type(IGovernorTimelock).interfaceId || super.supportsInterface(interfaceId); + } + + /** + * @dev Overridden version of the {Governor-state} function with added support for the `Queued` and `Expired` status. + */ + function state(uint256 proposalId) public view virtual override(IGovernor, Governor) returns (ProposalState) { + ProposalState status = super.state(proposalId); + + if (status != ProposalState.Succeeded) { + return status; + } + + uint256 eta = proposalEta(proposalId); + if (eta == 0) { + return status; + } else if (block.timestamp >= eta + _timelock.GRACE_PERIOD()) { + return ProposalState.Expired; + } else { + return ProposalState.Queued; + } + } + + /** + * @dev Public accessor to check the address of the timelock + */ + function timelock() public view virtual override returns (address) { + return address(_timelock); + } + + /** + * @dev Public accessor to check the eta of a queued proposal + */ + function proposalEta(uint256 proposalId) public view virtual override returns (uint256) { + return _proposalTimelocks[proposalId].timer.getDeadline(); + } + + /** + * @dev Function to queue a proposal to the timelock. + */ + function queue( + address[] memory targets, + uint256[] memory values, + bytes[] memory calldatas, + bytes32 descriptionHash + ) public virtual override returns (uint256) { + uint256 proposalId = hashProposal(targets, values, calldatas, descriptionHash); + + require(state(proposalId) == ProposalState.Succeeded, "Governor: proposal not successful"); + + uint256 eta = block.timestamp + _timelock.delay(); + _proposalTimelocks[proposalId].timer.setDeadline(eta.toUint64()); + for (uint256 i = 0; i < targets.length; ++i) { + require( + !_timelock.queuedTransactions(keccak256(abi.encode(targets[i], values[i], "", calldatas[i], eta))), + "GovernorTimelockCompound: identical proposal action already queued" + ); + _timelock.queueTransaction(targets[i], values[i], "", calldatas[i], eta); + } + + emit ProposalQueued(proposalId, eta); + + return proposalId; + } + + /** + * @dev Overridden execute function that run the already queued proposal through the timelock. + */ + function _execute( + uint256 proposalId, + address[] memory targets, + uint256[] memory values, + bytes[] memory calldatas, + bytes32 /*descriptionHash*/ + ) internal virtual override { + uint256 eta = proposalEta(proposalId); + require(eta > 0, "GovernorTimelockCompound: proposal not yet queued"); + Address.sendValue(payable(_timelock), msg.value); + for (uint256 i = 0; i < targets.length; ++i) { + _timelock.executeTransaction(targets[i], values[i], "", calldatas[i], eta); + } + } + + /** + * @dev Overridden version of the {Governor-_cancel} function to cancel the timelocked proposal if it as already + * been queued. + */ + function _cancel( + address[] memory targets, + uint256[] memory values, + bytes[] memory calldatas, + bytes32 descriptionHash + ) internal virtual override returns (uint256) { + uint256 proposalId = super._cancel(targets, values, calldatas, descriptionHash); + + uint256 eta = proposalEta(proposalId); + if (eta > 0) { + for (uint256 i = 0; i < targets.length; ++i) { + _timelock.cancelTransaction(targets[i], values[i], "", calldatas[i], eta); + } + _proposalTimelocks[proposalId].timer.reset(); + } + + return proposalId; + } + + /** + * @dev Address through which the governor executes action. In this case, the timelock. + */ + function _executor() internal view virtual override returns (address) { + return address(_timelock); + } + + /** + * @dev Accept admin right over the timelock. + */ + // solhint-disable-next-line private-vars-leading-underscore + function __acceptAdmin() public { + _timelock.acceptAdmin(); + } + + /** + * @dev Public endpoint to update the underlying timelock instance. Restricted to the timelock itself, so updates + * must be proposed, scheduled, and executed through governance proposals. + * + * For security reasons, the timelock must be handed over to another admin before setting up a new one. The two + * operations (hand over the timelock) and do the update can be batched in a single proposal. + * + * Note that if the timelock admin has been handed over in a previous operation, we refuse updates made through the + * timelock if admin of the timelock has already been accepted and the operation is executed outside the scope of + * governance. + + * CAUTION: It is not recommended to change the timelock while there are other queued governance proposals. + */ + function updateTimelock(ICompoundTimelock newTimelock) external virtual onlyGovernance { + _updateTimelock(newTimelock); + } + + function _updateTimelock(ICompoundTimelock newTimelock) private { + emit TimelockChange(address(_timelock), address(newTimelock)); + _timelock = newTimelock; + } +} diff --git a/lib/openzeppelin-contracts/contracts/governance/extensions/GovernorTimelockControl.sol b/lib/openzeppelin-contracts/contracts/governance/extensions/GovernorTimelockControl.sol new file mode 100644 index 0000000..6aa2556 --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/governance/extensions/GovernorTimelockControl.sol @@ -0,0 +1,166 @@ +// SPDX-License-Identifier: MIT +// OpenZeppelin Contracts (last updated v4.6.0) (governance/extensions/GovernorTimelockControl.sol) + +pragma solidity ^0.8.0; + +import "./IGovernorTimelock.sol"; +import "../Governor.sol"; +import "../TimelockController.sol"; + +/** + * @dev Extension of {Governor} that binds the execution process to an instance of {TimelockController}. This adds a + * delay, enforced by the {TimelockController} to all successful proposal (in addition to the voting duration). The + * {Governor} needs the proposer (and ideally the executor) roles for the {Governor} to work properly. + * + * Using this model means the proposal will be operated by the {TimelockController} and not by the {Governor}. Thus, + * the assets and permissions must be attached to the {TimelockController}. Any asset sent to the {Governor} will be + * inaccessible. + * + * WARNING: Setting up the TimelockController to have additional proposers besides the governor is very risky, as it + * grants them powers that they must be trusted or known not to use: 1) {onlyGovernance} functions like {relay} are + * available to them through the timelock, and 2) approved governance proposals can be blocked by them, effectively + * executing a Denial of Service attack. This risk will be mitigated in a future release. + * + * _Available since v4.3._ + */ +abstract contract GovernorTimelockControl is IGovernorTimelock, Governor { + TimelockController private _timelock; + mapping(uint256 => bytes32) private _timelockIds; + + /** + * @dev Emitted when the timelock controller used for proposal execution is modified. + */ + event TimelockChange(address oldTimelock, address newTimelock); + + /** + * @dev Set the timelock. + */ + constructor(TimelockController timelockAddress) { + _updateTimelock(timelockAddress); + } + + /** + * @dev See {IERC165-supportsInterface}. + */ + function supportsInterface(bytes4 interfaceId) public view virtual override(IERC165, Governor) returns (bool) { + return interfaceId == type(IGovernorTimelock).interfaceId || super.supportsInterface(interfaceId); + } + + /** + * @dev Overridden version of the {Governor-state} function with added support for the `Queued` status. + */ + function state(uint256 proposalId) public view virtual override(IGovernor, Governor) returns (ProposalState) { + ProposalState status = super.state(proposalId); + + if (status != ProposalState.Succeeded) { + return status; + } + + // core tracks execution, so we just have to check if successful proposal have been queued. + bytes32 queueid = _timelockIds[proposalId]; + if (queueid == bytes32(0)) { + return status; + } else if (_timelock.isOperationDone(queueid)) { + return ProposalState.Executed; + } else if (_timelock.isOperationPending(queueid)) { + return ProposalState.Queued; + } else { + return ProposalState.Canceled; + } + } + + /** + * @dev Public accessor to check the address of the timelock + */ + function timelock() public view virtual override returns (address) { + return address(_timelock); + } + + /** + * @dev Public accessor to check the eta of a queued proposal + */ + function proposalEta(uint256 proposalId) public view virtual override returns (uint256) { + uint256 eta = _timelock.getTimestamp(_timelockIds[proposalId]); + return eta == 1 ? 0 : eta; // _DONE_TIMESTAMP (1) should be replaced with a 0 value + } + + /** + * @dev Function to queue a proposal to the timelock. + */ + function queue( + address[] memory targets, + uint256[] memory values, + bytes[] memory calldatas, + bytes32 descriptionHash + ) public virtual override returns (uint256) { + uint256 proposalId = hashProposal(targets, values, calldatas, descriptionHash); + + require(state(proposalId) == ProposalState.Succeeded, "Governor: proposal not successful"); + + uint256 delay = _timelock.getMinDelay(); + _timelockIds[proposalId] = _timelock.hashOperationBatch(targets, values, calldatas, 0, descriptionHash); + _timelock.scheduleBatch(targets, values, calldatas, 0, descriptionHash, delay); + + emit ProposalQueued(proposalId, block.timestamp + delay); + + return proposalId; + } + + /** + * @dev Overridden execute function that run the already queued proposal through the timelock. + */ + function _execute( + uint256 /* proposalId */, + address[] memory targets, + uint256[] memory values, + bytes[] memory calldatas, + bytes32 descriptionHash + ) internal virtual override { + _timelock.executeBatch{value: msg.value}(targets, values, calldatas, 0, descriptionHash); + } + + /** + * @dev Overridden version of the {Governor-_cancel} function to cancel the timelocked proposal if it as already + * been queued. + */ + // This function can reenter through the external call to the timelock, but we assume the timelock is trusted and + // well behaved (according to TimelockController) and this will not happen. + // slither-disable-next-line reentrancy-no-eth + function _cancel( + address[] memory targets, + uint256[] memory values, + bytes[] memory calldatas, + bytes32 descriptionHash + ) internal virtual override returns (uint256) { + uint256 proposalId = super._cancel(targets, values, calldatas, descriptionHash); + + if (_timelockIds[proposalId] != 0) { + _timelock.cancel(_timelockIds[proposalId]); + delete _timelockIds[proposalId]; + } + + return proposalId; + } + + /** + * @dev Address through which the governor executes action. In this case, the timelock. + */ + function _executor() internal view virtual override returns (address) { + return address(_timelock); + } + + /** + * @dev Public endpoint to update the underlying timelock instance. Restricted to the timelock itself, so updates + * must be proposed, scheduled, and executed through governance proposals. + * + * CAUTION: It is not recommended to change the timelock while there are other queued governance proposals. + */ + function updateTimelock(TimelockController newTimelock) external virtual onlyGovernance { + _updateTimelock(newTimelock); + } + + function _updateTimelock(TimelockController newTimelock) private { + emit TimelockChange(address(_timelock), address(newTimelock)); + _timelock = newTimelock; + } +} diff --git a/lib/openzeppelin-contracts/contracts/governance/extensions/GovernorVotes.sol b/lib/openzeppelin-contracts/contracts/governance/extensions/GovernorVotes.sol new file mode 100644 index 0000000..b328c25 --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/governance/extensions/GovernorVotes.sol @@ -0,0 +1,31 @@ +// SPDX-License-Identifier: MIT +// OpenZeppelin Contracts (last updated v4.6.0) (governance/extensions/GovernorVotes.sol) + +pragma solidity ^0.8.0; + +import "../Governor.sol"; +import "../utils/IVotes.sol"; + +/** + * @dev Extension of {Governor} for voting weight extraction from an {ERC20Votes} token, or since v4.5 an {ERC721Votes} token. + * + * _Available since v4.3._ + */ +abstract contract GovernorVotes is Governor { + IVotes public immutable token; + + constructor(IVotes tokenAddress) { + token = tokenAddress; + } + + /** + * Read the voting weight from the token's built in snapshot mechanism (see {Governor-_getVotes}). + */ + function _getVotes( + address account, + uint256 blockNumber, + bytes memory /*params*/ + ) internal view virtual override returns (uint256) { + return token.getPastVotes(account, blockNumber); + } +} diff --git a/lib/openzeppelin-contracts/contracts/governance/extensions/GovernorVotesComp.sol b/lib/openzeppelin-contracts/contracts/governance/extensions/GovernorVotesComp.sol new file mode 100644 index 0000000..8c4a1f8 --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/governance/extensions/GovernorVotesComp.sol @@ -0,0 +1,31 @@ +// SPDX-License-Identifier: MIT +// OpenZeppelin Contracts (last updated v4.6.0) (governance/extensions/GovernorVotesComp.sol) + +pragma solidity ^0.8.0; + +import "../Governor.sol"; +import "../../token/ERC20/extensions/ERC20VotesComp.sol"; + +/** + * @dev Extension of {Governor} for voting weight extraction from a Comp token. + * + * _Available since v4.3._ + */ +abstract contract GovernorVotesComp is Governor { + ERC20VotesComp public immutable token; + + constructor(ERC20VotesComp token_) { + token = token_; + } + + /** + * Read the voting weight from the token's built in snapshot mechanism (see {Governor-_getVotes}). + */ + function _getVotes( + address account, + uint256 blockNumber, + bytes memory /*params*/ + ) internal view virtual override returns (uint256) { + return token.getPriorVotes(account, blockNumber); + } +} diff --git a/lib/openzeppelin-contracts/contracts/governance/extensions/GovernorVotesQuorumFraction.sol b/lib/openzeppelin-contracts/contracts/governance/extensions/GovernorVotesQuorumFraction.sol new file mode 100644 index 0000000..8efefce --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/governance/extensions/GovernorVotesQuorumFraction.sol @@ -0,0 +1,119 @@ +// SPDX-License-Identifier: MIT +// OpenZeppelin Contracts (last updated v4.8.0) (governance/extensions/GovernorVotesQuorumFraction.sol) + +pragma solidity ^0.8.0; + +import "./GovernorVotes.sol"; +import "../../utils/Checkpoints.sol"; +import "../../utils/math/SafeCast.sol"; + +/** + * @dev Extension of {Governor} for voting weight extraction from an {ERC20Votes} token and a quorum expressed as a + * fraction of the total supply. + * + * _Available since v4.3._ + */ +abstract contract GovernorVotesQuorumFraction is GovernorVotes { + using Checkpoints for Checkpoints.History; + + uint256 private _quorumNumerator; // DEPRECATED + Checkpoints.History private _quorumNumeratorHistory; + + event QuorumNumeratorUpdated(uint256 oldQuorumNumerator, uint256 newQuorumNumerator); + + /** + * @dev Initialize quorum as a fraction of the token's total supply. + * + * The fraction is specified as `numerator / denominator`. By default the denominator is 100, so quorum is + * specified as a percent: a numerator of 10 corresponds to quorum being 10% of total supply. The denominator can be + * customized by overriding {quorumDenominator}. + */ + constructor(uint256 quorumNumeratorValue) { + _updateQuorumNumerator(quorumNumeratorValue); + } + + /** + * @dev Returns the current quorum numerator. See {quorumDenominator}. + */ + function quorumNumerator() public view virtual returns (uint256) { + return _quorumNumeratorHistory._checkpoints.length == 0 ? _quorumNumerator : _quorumNumeratorHistory.latest(); + } + + /** + * @dev Returns the quorum numerator at a specific block number. See {quorumDenominator}. + */ + function quorumNumerator(uint256 blockNumber) public view virtual returns (uint256) { + // If history is empty, fallback to old storage + uint256 length = _quorumNumeratorHistory._checkpoints.length; + if (length == 0) { + return _quorumNumerator; + } + + // Optimistic search, check the latest checkpoint + Checkpoints.Checkpoint memory latest = _quorumNumeratorHistory._checkpoints[length - 1]; + if (latest._blockNumber <= blockNumber) { + return latest._value; + } + + // Otherwise, do the binary search + return _quorumNumeratorHistory.getAtBlock(blockNumber); + } + + /** + * @dev Returns the quorum denominator. Defaults to 100, but may be overridden. + */ + function quorumDenominator() public view virtual returns (uint256) { + return 100; + } + + /** + * @dev Returns the quorum for a block number, in terms of number of votes: `supply * numerator / denominator`. + */ + function quorum(uint256 blockNumber) public view virtual override returns (uint256) { + return (token.getPastTotalSupply(blockNumber) * quorumNumerator(blockNumber)) / quorumDenominator(); + } + + /** + * @dev Changes the quorum numerator. + * + * Emits a {QuorumNumeratorUpdated} event. + * + * Requirements: + * + * - Must be called through a governance proposal. + * - New numerator must be smaller or equal to the denominator. + */ + function updateQuorumNumerator(uint256 newQuorumNumerator) external virtual onlyGovernance { + _updateQuorumNumerator(newQuorumNumerator); + } + + /** + * @dev Changes the quorum numerator. + * + * Emits a {QuorumNumeratorUpdated} event. + * + * Requirements: + * + * - New numerator must be smaller or equal to the denominator. + */ + function _updateQuorumNumerator(uint256 newQuorumNumerator) internal virtual { + require( + newQuorumNumerator <= quorumDenominator(), + "GovernorVotesQuorumFraction: quorumNumerator over quorumDenominator" + ); + + uint256 oldQuorumNumerator = quorumNumerator(); + + // Make sure we keep track of the original numerator in contracts upgraded from a version without checkpoints. + if (oldQuorumNumerator != 0 && _quorumNumeratorHistory._checkpoints.length == 0) { + _quorumNumeratorHistory._checkpoints.push( + Checkpoints.Checkpoint({_blockNumber: 0, _value: SafeCast.toUint224(oldQuorumNumerator)}) + ); + } + + // Set new quorum for future proposals + _quorumNumeratorHistory.push(newQuorumNumerator); + + emit QuorumNumeratorUpdated(oldQuorumNumerator, newQuorumNumerator); + } +} diff --git a/lib/openzeppelin-contracts/contracts/governance/extensions/IGovernorTimelock.sol b/lib/openzeppelin-contracts/contracts/governance/extensions/IGovernorTimelock.sol new file mode 100644 index 0000000..40402f6 --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/governance/extensions/IGovernorTimelock.sol @@ -0,0 +1,26 @@ +// SPDX-License-Identifier: MIT +// OpenZeppelin Contracts v4.4.1 (governance/extensions/IGovernorTimelock.sol) + +pragma solidity ^0.8.0; + +import "../IGovernor.sol"; + +/** + * @dev Extension of the {IGovernor} for timelock supporting modules. + * + * _Available since v4.3._ + */ +abstract contract IGovernorTimelock is IGovernor { + event ProposalQueued(uint256 proposalId, uint256 eta); + + function timelock() public view virtual returns (address); + + function proposalEta(uint256 proposalId) public view virtual returns (uint256); + + function queue( + address[] memory targets, + uint256[] memory values, + bytes[] memory calldatas, + bytes32 descriptionHash + ) public virtual returns (uint256 proposalId); +} diff --git a/lib/openzeppelin-contracts/contracts/governance/utils/IVotes.sol b/lib/openzeppelin-contracts/contracts/governance/utils/IVotes.sol new file mode 100644 index 0000000..0bef3f9 --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/governance/utils/IVotes.sol @@ -0,0 +1,54 @@ +// SPDX-License-Identifier: MIT +// OpenZeppelin Contracts (last updated v4.5.0) (governance/utils/IVotes.sol) +pragma solidity ^0.8.0; + +/** + * @dev Common interface for {ERC20Votes}, {ERC721Votes}, and other {Votes}-enabled contracts. + * + * _Available since v4.5._ + */ +interface IVotes { + /** + * @dev Emitted when an account changes their delegate. + */ + event DelegateChanged(address indexed delegator, address indexed fromDelegate, address indexed toDelegate); + + /** + * @dev Emitted when a token transfer or delegate change results in changes to a delegate's number of votes. + */ + event DelegateVotesChanged(address indexed delegate, uint256 previousBalance, uint256 newBalance); + + /** + * @dev Returns the current amount of votes that `account` has. + */ + function getVotes(address account) external view returns (uint256); + + /** + * @dev Returns the amount of votes that `account` had at the end of a past block (`blockNumber`). + */ + function getPastVotes(address account, uint256 blockNumber) external view returns (uint256); + + /** + * @dev Returns the total supply of votes available at the end of a past block (`blockNumber`). + * + * NOTE: This value is the sum of all available votes, which is not necessarily the sum of all delegated votes. + * Votes that have not been delegated are still part of total supply, even though they would not participate in a + * vote. + */ + function getPastTotalSupply(uint256 blockNumber) external view returns (uint256); + + /** + * @dev Returns the delegate that `account` has chosen. + */ + function delegates(address account) external view returns (address); + + /** + * @dev Delegates votes from the sender to `delegatee`. + */ + function delegate(address delegatee) external; + + /** + * @dev Delegates votes from signer to `delegatee`. + */ + function delegateBySig(address delegatee, uint256 nonce, uint256 expiry, uint8 v, bytes32 r, bytes32 s) external; +} diff --git a/lib/openzeppelin-contracts/contracts/governance/utils/Votes.sol b/lib/openzeppelin-contracts/contracts/governance/utils/Votes.sol new file mode 100644 index 0000000..2eecf32 --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/governance/utils/Votes.sol @@ -0,0 +1,203 @@ +// SPDX-License-Identifier: MIT +// OpenZeppelin Contracts (last updated v4.8.0) (governance/utils/Votes.sol) +pragma solidity ^0.8.0; + +import "../../utils/Context.sol"; +import "../../utils/Counters.sol"; +import "../../utils/Checkpoints.sol"; +import "../../utils/cryptography/EIP712.sol"; +import "./IVotes.sol"; + +/** + * @dev This is a base abstract contract that tracks voting units, which are a measure of voting power that can be + * transferred, and provides a system of vote delegation, where an account can delegate its voting units to a sort of + * "representative" that will pool delegated voting units from different accounts and can then use it to vote in + * decisions. In fact, voting units _must_ be delegated in order to count as actual votes, and an account has to + * delegate those votes to itself if it wishes to participate in decisions and does not have a trusted representative. + * + * This contract is often combined with a token contract such that voting units correspond to token units. For an + * example, see {ERC721Votes}. + * + * The full history of delegate votes is tracked on-chain so that governance protocols can consider votes as distributed + * at a particular block number to protect against flash loans and double voting. The opt-in delegate system makes the + * cost of this history tracking optional. + * + * When using this module the derived contract must implement {_getVotingUnits} (for example, make it return + * {ERC721-balanceOf}), and can use {_transferVotingUnits} to track a change in the distribution of those units (in the + * previous example, it would be included in {ERC721-_beforeTokenTransfer}). + * + * _Available since v4.5._ + */ +abstract contract Votes is IVotes, Context, EIP712 { + using Checkpoints for Checkpoints.History; + using Counters for Counters.Counter; + + bytes32 private constant _DELEGATION_TYPEHASH = + keccak256("Delegation(address delegatee,uint256 nonce,uint256 expiry)"); + + mapping(address => address) private _delegation; + mapping(address => Checkpoints.History) private _delegateCheckpoints; + Checkpoints.History private _totalCheckpoints; + + mapping(address => Counters.Counter) private _nonces; + + /** + * @dev Returns the current amount of votes that `account` has. + */ + function getVotes(address account) public view virtual override returns (uint256) { + return _delegateCheckpoints[account].latest(); + } + + /** + * @dev Returns the amount of votes that `account` had at the end of a past block (`blockNumber`). + * + * Requirements: + * + * - `blockNumber` must have been already mined + */ + function getPastVotes(address account, uint256 blockNumber) public view virtual override returns (uint256) { + return _delegateCheckpoints[account].getAtProbablyRecentBlock(blockNumber); + } + + /** + * @dev Returns the total supply of votes available at the end of a past block (`blockNumber`). + * + * NOTE: This value is the sum of all available votes, which is not necessarily the sum of all delegated votes. + * Votes that have not been delegated are still part of total supply, even though they would not participate in a + * vote. + * + * Requirements: + * + * - `blockNumber` must have been already mined + */ + function getPastTotalSupply(uint256 blockNumber) public view virtual override returns (uint256) { + require(blockNumber < block.number, "Votes: block not yet mined"); + return _totalCheckpoints.getAtProbablyRecentBlock(blockNumber); + } + + /** + * @dev Returns the current total supply of votes. + */ + function _getTotalSupply() internal view virtual returns (uint256) { + return _totalCheckpoints.latest(); + } + + /** + * @dev Returns the delegate that `account` has chosen. + */ + function delegates(address account) public view virtual override returns (address) { + return _delegation[account]; + } + + /** + * @dev Delegates votes from the sender to `delegatee`. + */ + function delegate(address delegatee) public virtual override { + address account = _msgSender(); + _delegate(account, delegatee); + } + + /** + * @dev Delegates votes from signer to `delegatee`. + */ + function delegateBySig( + address delegatee, + uint256 nonce, + uint256 expiry, + uint8 v, + bytes32 r, + bytes32 s + ) public virtual override { + require(block.timestamp <= expiry, "Votes: signature expired"); + address signer = ECDSA.recover( + _hashTypedDataV4(keccak256(abi.encode(_DELEGATION_TYPEHASH, delegatee, nonce, expiry))), + v, + r, + s + ); + require(nonce == _useNonce(signer), "Votes: invalid nonce"); + _delegate(signer, delegatee); + } + + /** + * @dev Delegate all of `account`'s voting units to `delegatee`. + * + * Emits events {IVotes-DelegateChanged} and {IVotes-DelegateVotesChanged}. + */ + function _delegate(address account, address delegatee) internal virtual { + address oldDelegate = delegates(account); + _delegation[account] = delegatee; + + emit DelegateChanged(account, oldDelegate, delegatee); + _moveDelegateVotes(oldDelegate, delegatee, _getVotingUnits(account)); + } + + /** + * @dev Transfers, mints, or burns voting units. To register a mint, `from` should be zero. To register a burn, `to` + * should be zero. Total supply of voting units will be adjusted with mints and burns. + */ + function _transferVotingUnits(address from, address to, uint256 amount) internal virtual { + if (from == address(0)) { + _totalCheckpoints.push(_add, amount); + } + if (to == address(0)) { + _totalCheckpoints.push(_subtract, amount); + } + _moveDelegateVotes(delegates(from), delegates(to), amount); + } + + /** + * @dev Moves delegated votes from one delegate to another. + */ + function _moveDelegateVotes(address from, address to, uint256 amount) private { + if (from != to && amount > 0) { + if (from != address(0)) { + (uint256 oldValue, uint256 newValue) = _delegateCheckpoints[from].push(_subtract, amount); + emit DelegateVotesChanged(from, oldValue, newValue); + } + if (to != address(0)) { + (uint256 oldValue, uint256 newValue) = _delegateCheckpoints[to].push(_add, amount); + emit DelegateVotesChanged(to, oldValue, newValue); + } + } + } + + function _add(uint256 a, uint256 b) private pure returns (uint256) { + return a + b; + } + + function _subtract(uint256 a, uint256 b) private pure returns (uint256) { + return a - b; + } + + /** + * @dev Consumes a nonce. + * + * Returns the current value and increments nonce. + */ + function _useNonce(address owner) internal virtual returns (uint256 current) { + Counters.Counter storage nonce = _nonces[owner]; + current = nonce.current(); + nonce.increment(); + } + + /** + * @dev Returns an address nonce. + */ + function nonces(address owner) public view virtual returns (uint256) { + return _nonces[owner].current(); + } + + /** + * @dev Returns the contract's {EIP712} domain separator. + */ + // solhint-disable-next-line func-name-mixedcase + function DOMAIN_SEPARATOR() external view returns (bytes32) { + return _domainSeparatorV4(); + } + + /** + * @dev Must return the voting units held by an account. + */ + function _getVotingUnits(address) internal view virtual returns (uint256); +} diff --git a/lib/openzeppelin-contracts/contracts/interfaces/IERC1155.sol b/lib/openzeppelin-contracts/contracts/interfaces/IERC1155.sol new file mode 100644 index 0000000..f891132 --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/interfaces/IERC1155.sol @@ -0,0 +1,6 @@ +// SPDX-License-Identifier: MIT +// OpenZeppelin Contracts v4.4.1 (interfaces/IERC1155.sol) + +pragma solidity ^0.8.0; + +import "../token/ERC1155/IERC1155.sol"; diff --git a/lib/openzeppelin-contracts/contracts/interfaces/IERC1155MetadataURI.sol b/lib/openzeppelin-contracts/contracts/interfaces/IERC1155MetadataURI.sol new file mode 100644 index 0000000..2aa885f --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/interfaces/IERC1155MetadataURI.sol @@ -0,0 +1,6 @@ +// SPDX-License-Identifier: MIT +// OpenZeppelin Contracts v4.4.1 (interfaces/IERC1155MetadataURI.sol) + +pragma solidity ^0.8.0; + +import "../token/ERC1155/extensions/IERC1155MetadataURI.sol"; diff --git a/lib/openzeppelin-contracts/contracts/interfaces/IERC1155Receiver.sol b/lib/openzeppelin-contracts/contracts/interfaces/IERC1155Receiver.sol new file mode 100644 index 0000000..a6d4ead --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/interfaces/IERC1155Receiver.sol @@ -0,0 +1,6 @@ +// SPDX-License-Identifier: MIT +// OpenZeppelin Contracts v4.4.1 (interfaces/IERC1155Receiver.sol) + +pragma solidity ^0.8.0; + +import "../token/ERC1155/IERC1155Receiver.sol"; diff --git a/lib/openzeppelin-contracts/contracts/interfaces/IERC1271.sol b/lib/openzeppelin-contracts/contracts/interfaces/IERC1271.sol new file mode 100644 index 0000000..5ec44c7 --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/interfaces/IERC1271.sol @@ -0,0 +1,19 @@ +// SPDX-License-Identifier: MIT +// OpenZeppelin Contracts v4.4.1 (interfaces/IERC1271.sol) + +pragma solidity ^0.8.0; + +/** + * @dev Interface of the ERC1271 standard signature validation method for + * contracts as defined in https://eips.ethereum.org/EIPS/eip-1271[ERC-1271]. + * + * _Available since v4.1._ + */ +interface IERC1271 { + /** + * @dev Should return whether the signature provided is valid for the provided data + * @param hash Hash of the data to be signed + * @param signature Signature byte array associated with _data + */ + function isValidSignature(bytes32 hash, bytes memory signature) external view returns (bytes4 magicValue); +} diff --git a/lib/openzeppelin-contracts/contracts/interfaces/IERC1363.sol b/lib/openzeppelin-contracts/contracts/interfaces/IERC1363.sol new file mode 100644 index 0000000..1a8dc79 --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/interfaces/IERC1363.sol @@ -0,0 +1,78 @@ +// SPDX-License-Identifier: MIT +// OpenZeppelin Contracts v4.4.1 (interfaces/IERC1363.sol) + +pragma solidity ^0.8.0; + +import "./IERC20.sol"; +import "./IERC165.sol"; + +interface IERC1363 is IERC165, IERC20 { + /* + * Note: the ERC-165 identifier for this interface is 0x4bbee2df. + * 0x4bbee2df === + * bytes4(keccak256('transferAndCall(address,uint256)')) ^ + * bytes4(keccak256('transferAndCall(address,uint256,bytes)')) ^ + * bytes4(keccak256('transferFromAndCall(address,address,uint256)')) ^ + * bytes4(keccak256('transferFromAndCall(address,address,uint256,bytes)')) + */ + + /* + * Note: the ERC-165 identifier for this interface is 0xfb9ec8ce. + * 0xfb9ec8ce === + * bytes4(keccak256('approveAndCall(address,uint256)')) ^ + * bytes4(keccak256('approveAndCall(address,uint256,bytes)')) + */ + + /** + * @dev Transfer tokens from `msg.sender` to another address and then call `onTransferReceived` on receiver + * @param to address The address which you want to transfer to + * @param value uint256 The amount of tokens to be transferred + * @return true unless throwing + */ + function transferAndCall(address to, uint256 value) external returns (bool); + + /** + * @dev Transfer tokens from `msg.sender` to another address and then call `onTransferReceived` on receiver + * @param to address The address which you want to transfer to + * @param value uint256 The amount of tokens to be transferred + * @param data bytes Additional data with no specified format, sent in call to `to` + * @return true unless throwing + */ + function transferAndCall(address to, uint256 value, bytes memory data) external returns (bool); + + /** + * @dev Transfer tokens from one address to another and then call `onTransferReceived` on receiver + * @param from address The address which you want to send tokens from + * @param to address The address which you want to transfer to + * @param value uint256 The amount of tokens to be transferred + * @return true unless throwing + */ + function transferFromAndCall(address from, address to, uint256 value) external returns (bool); + + /** + * @dev Transfer tokens from one address to another and then call `onTransferReceived` on receiver + * @param from address The address which you want to send tokens from + * @param to address The address which you want to transfer to + * @param value uint256 The amount of tokens to be transferred + * @param data bytes Additional data with no specified format, sent in call to `to` + * @return true unless throwing + */ + function transferFromAndCall(address from, address to, uint256 value, bytes memory data) external returns (bool); + + /** + * @dev Approve the passed address to spend the specified amount of tokens on behalf of msg.sender + * and then call `onApprovalReceived` on spender. + * @param spender address The address which will spend the funds + * @param value uint256 The amount of tokens to be spent + */ + function approveAndCall(address spender, uint256 value) external returns (bool); + + /** + * @dev Approve the passed address to spend the specified amount of tokens on behalf of msg.sender + * and then call `onApprovalReceived` on spender. + * @param spender address The address which will spend the funds + * @param value uint256 The amount of tokens to be spent + * @param data bytes Additional data with no specified format, sent in call to `spender` + */ + function approveAndCall(address spender, uint256 value, bytes memory data) external returns (bool); +} diff --git a/lib/openzeppelin-contracts/contracts/interfaces/IERC1363Receiver.sol b/lib/openzeppelin-contracts/contracts/interfaces/IERC1363Receiver.sol new file mode 100644 index 0000000..bc5eadd --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/interfaces/IERC1363Receiver.sol @@ -0,0 +1,32 @@ +// SPDX-License-Identifier: MIT +// OpenZeppelin Contracts v4.4.1 (interfaces/IERC1363Receiver.sol) + +pragma solidity ^0.8.0; + +interface IERC1363Receiver { + /* + * Note: the ERC-165 identifier for this interface is 0x88a7ca5c. + * 0x88a7ca5c === bytes4(keccak256("onTransferReceived(address,address,uint256,bytes)")) + */ + + /** + * @notice Handle the receipt of ERC1363 tokens + * @dev Any ERC1363 smart contract calls this function on the recipient + * after a `transfer` or a `transferFrom`. This function MAY throw to revert and reject the + * transfer. Return of other than the magic value MUST result in the + * transaction being reverted. + * Note: the token contract address is always the message sender. + * @param operator address The address which called `transferAndCall` or `transferFromAndCall` function + * @param from address The address which are token transferred from + * @param value uint256 The amount of tokens transferred + * @param data bytes Additional data with no specified format + * @return `bytes4(keccak256("onTransferReceived(address,address,uint256,bytes)"))` + * unless throwing + */ + function onTransferReceived( + address operator, + address from, + uint256 value, + bytes memory data + ) external returns (bytes4); +} diff --git a/lib/openzeppelin-contracts/contracts/interfaces/IERC1363Spender.sol b/lib/openzeppelin-contracts/contracts/interfaces/IERC1363Spender.sol new file mode 100644 index 0000000..28775e1 --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/interfaces/IERC1363Spender.sol @@ -0,0 +1,26 @@ +// SPDX-License-Identifier: MIT +// OpenZeppelin Contracts v4.4.1 (interfaces/IERC1363Spender.sol) + +pragma solidity ^0.8.0; + +interface IERC1363Spender { + /* + * Note: the ERC-165 identifier for this interface is 0x7b04a2d0. + * 0x7b04a2d0 === bytes4(keccak256("onApprovalReceived(address,uint256,bytes)")) + */ + + /** + * @notice Handle the approval of ERC1363 tokens + * @dev Any ERC1363 smart contract calls this function on the recipient + * after an `approve`. This function MAY throw to revert and reject the + * approval. Return of other than the magic value MUST result in the + * transaction being reverted. + * Note: the token contract address is always the message sender. + * @param owner address The address which called `approveAndCall` function + * @param value uint256 The amount of tokens to be spent + * @param data bytes Additional data with no specified format + * @return `bytes4(keccak256("onApprovalReceived(address,uint256,bytes)"))` + * unless throwing + */ + function onApprovalReceived(address owner, uint256 value, bytes memory data) external returns (bytes4); +} diff --git a/lib/openzeppelin-contracts/contracts/interfaces/IERC165.sol b/lib/openzeppelin-contracts/contracts/interfaces/IERC165.sol new file mode 100644 index 0000000..b97c4da --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/interfaces/IERC165.sol @@ -0,0 +1,6 @@ +// SPDX-License-Identifier: MIT +// OpenZeppelin Contracts v4.4.1 (interfaces/IERC165.sol) + +pragma solidity ^0.8.0; + +import "../utils/introspection/IERC165.sol"; diff --git a/lib/openzeppelin-contracts/contracts/interfaces/IERC1820Implementer.sol b/lib/openzeppelin-contracts/contracts/interfaces/IERC1820Implementer.sol new file mode 100644 index 0000000..a83a7a3 --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/interfaces/IERC1820Implementer.sol @@ -0,0 +1,6 @@ +// SPDX-License-Identifier: MIT +// OpenZeppelin Contracts v4.4.1 (interfaces/IERC1820Implementer.sol) + +pragma solidity ^0.8.0; + +import "../utils/introspection/IERC1820Implementer.sol"; diff --git a/lib/openzeppelin-contracts/contracts/interfaces/IERC1820Registry.sol b/lib/openzeppelin-contracts/contracts/interfaces/IERC1820Registry.sol new file mode 100644 index 0000000..1b1ba9f --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/interfaces/IERC1820Registry.sol @@ -0,0 +1,6 @@ +// SPDX-License-Identifier: MIT +// OpenZeppelin Contracts v4.4.1 (interfaces/IERC1820Registry.sol) + +pragma solidity ^0.8.0; + +import "../utils/introspection/IERC1820Registry.sol"; diff --git a/lib/openzeppelin-contracts/contracts/interfaces/IERC20.sol b/lib/openzeppelin-contracts/contracts/interfaces/IERC20.sol new file mode 100644 index 0000000..a819316 --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/interfaces/IERC20.sol @@ -0,0 +1,6 @@ +// SPDX-License-Identifier: MIT +// OpenZeppelin Contracts v4.4.1 (interfaces/IERC20.sol) + +pragma solidity ^0.8.0; + +import "../token/ERC20/IERC20.sol"; diff --git a/lib/openzeppelin-contracts/contracts/interfaces/IERC20Metadata.sol b/lib/openzeppelin-contracts/contracts/interfaces/IERC20Metadata.sol new file mode 100644 index 0000000..aa5c639 --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/interfaces/IERC20Metadata.sol @@ -0,0 +1,6 @@ +// SPDX-License-Identifier: MIT +// OpenZeppelin Contracts v4.4.1 (interfaces/IERC20Metadata.sol) + +pragma solidity ^0.8.0; + +import "../token/ERC20/extensions/IERC20Metadata.sol"; diff --git a/lib/openzeppelin-contracts/contracts/interfaces/IERC2309.sol b/lib/openzeppelin-contracts/contracts/interfaces/IERC2309.sol new file mode 100644 index 0000000..b3fec44 --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/interfaces/IERC2309.sol @@ -0,0 +1,21 @@ +// SPDX-License-Identifier: MIT +// OpenZeppelin Contracts (last updated v4.8.0) (interfaces/IERC2309.sol) + +pragma solidity ^0.8.0; + +/** + * @dev ERC-2309: ERC-721 Consecutive Transfer Extension. + * + * _Available since v4.8._ + */ +interface IERC2309 { + /** + * @dev Emitted when the tokens from `fromTokenId` to `toTokenId` are transferred from `fromAddress` to `toAddress`. + */ + event ConsecutiveTransfer( + uint256 indexed fromTokenId, + uint256 toTokenId, + address indexed fromAddress, + address indexed toAddress + ); +} diff --git a/lib/openzeppelin-contracts/contracts/interfaces/IERC2612.sol b/lib/openzeppelin-contracts/contracts/interfaces/IERC2612.sol new file mode 100644 index 0000000..6dfdf6f --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/interfaces/IERC2612.sol @@ -0,0 +1,8 @@ +// SPDX-License-Identifier: MIT +// OpenZeppelin Contracts v4.4.1 (interfaces/IERC2612.sol) + +pragma solidity ^0.8.0; + +import "../token/ERC20/extensions/IERC20Permit.sol"; + +interface IERC2612 is IERC20Permit {} diff --git a/lib/openzeppelin-contracts/contracts/interfaces/IERC2981.sol b/lib/openzeppelin-contracts/contracts/interfaces/IERC2981.sol new file mode 100644 index 0000000..1c9448a --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/interfaces/IERC2981.sol @@ -0,0 +1,25 @@ +// SPDX-License-Identifier: MIT +// OpenZeppelin Contracts (last updated v4.6.0) (interfaces/IERC2981.sol) + +pragma solidity ^0.8.0; + +import "../utils/introspection/IERC165.sol"; + +/** + * @dev Interface for the NFT Royalty Standard. + * + * A standardized way to retrieve royalty payment information for non-fungible tokens (NFTs) to enable universal + * support for royalty payments across all NFT marketplaces and ecosystem participants. + * + * _Available since v4.5._ + */ +interface IERC2981 is IERC165 { + /** + * @dev Returns how much royalty is owed and to whom, based on a sale price that may be denominated in any unit of + * exchange. The royalty amount is denominated and should be paid in that same unit of exchange. + */ + function royaltyInfo( + uint256 tokenId, + uint256 salePrice + ) external view returns (address receiver, uint256 royaltyAmount); +} diff --git a/lib/openzeppelin-contracts/contracts/interfaces/IERC3156.sol b/lib/openzeppelin-contracts/contracts/interfaces/IERC3156.sol new file mode 100644 index 0000000..1238190 --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/interfaces/IERC3156.sol @@ -0,0 +1,7 @@ +// SPDX-License-Identifier: MIT +// OpenZeppelin Contracts v4.4.1 (interfaces/IERC3156.sol) + +pragma solidity ^0.8.0; + +import "./IERC3156FlashBorrower.sol"; +import "./IERC3156FlashLender.sol"; diff --git a/lib/openzeppelin-contracts/contracts/interfaces/IERC3156FlashBorrower.sol b/lib/openzeppelin-contracts/contracts/interfaces/IERC3156FlashBorrower.sol new file mode 100644 index 0000000..c3b4f1e --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/interfaces/IERC3156FlashBorrower.sol @@ -0,0 +1,29 @@ +// SPDX-License-Identifier: MIT +// OpenZeppelin Contracts (last updated v4.7.0) (interfaces/IERC3156FlashBorrower.sol) + +pragma solidity ^0.8.0; + +/** + * @dev Interface of the ERC3156 FlashBorrower, as defined in + * https://eips.ethereum.org/EIPS/eip-3156[ERC-3156]. + * + * _Available since v4.1._ + */ +interface IERC3156FlashBorrower { + /** + * @dev Receive a flash loan. + * @param initiator The initiator of the loan. + * @param token The loan currency. + * @param amount The amount of tokens lent. + * @param fee The additional amount of tokens to repay. + * @param data Arbitrary data structure, intended to contain user-defined parameters. + * @return The keccak256 hash of "IERC3156FlashBorrower.onFlashLoan" + */ + function onFlashLoan( + address initiator, + address token, + uint256 amount, + uint256 fee, + bytes calldata data + ) external returns (bytes32); +} diff --git a/lib/openzeppelin-contracts/contracts/interfaces/IERC3156FlashLender.sol b/lib/openzeppelin-contracts/contracts/interfaces/IERC3156FlashLender.sol new file mode 100644 index 0000000..3101283 --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/interfaces/IERC3156FlashLender.sol @@ -0,0 +1,43 @@ +// SPDX-License-Identifier: MIT +// OpenZeppelin Contracts v4.4.1 (interfaces/IERC3156FlashLender.sol) + +pragma solidity ^0.8.0; + +import "./IERC3156FlashBorrower.sol"; + +/** + * @dev Interface of the ERC3156 FlashLender, as defined in + * https://eips.ethereum.org/EIPS/eip-3156[ERC-3156]. + * + * _Available since v4.1._ + */ +interface IERC3156FlashLender { + /** + * @dev The amount of currency available to be lended. + * @param token The loan currency. + * @return The amount of `token` that can be borrowed. + */ + function maxFlashLoan(address token) external view returns (uint256); + + /** + * @dev The fee to be charged for a given loan. + * @param token The loan currency. + * @param amount The amount of tokens lent. + * @return The amount of `token` to be charged for the loan, on top of the returned principal. + */ + function flashFee(address token, uint256 amount) external view returns (uint256); + + /** + * @dev Initiate a flash loan. + * @param receiver The receiver of the tokens in the loan, and the receiver of the callback. + * @param token The loan currency. + * @param amount The amount of tokens lent. + * @param data Arbitrary data structure, intended to contain user-defined parameters. + */ + function flashLoan( + IERC3156FlashBorrower receiver, + address token, + uint256 amount, + bytes calldata data + ) external returns (bool); +} diff --git a/lib/openzeppelin-contracts/contracts/interfaces/IERC4626.sol b/lib/openzeppelin-contracts/contracts/interfaces/IERC4626.sol new file mode 100644 index 0000000..08e5de7 --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/interfaces/IERC4626.sol @@ -0,0 +1,232 @@ +// SPDX-License-Identifier: MIT +// OpenZeppelin Contracts (last updated v4.8.0) (interfaces/IERC4626.sol) + +pragma solidity ^0.8.0; + +import "../token/ERC20/IERC20.sol"; +import "../token/ERC20/extensions/IERC20Metadata.sol"; + +/** + * @dev Interface of the ERC4626 "Tokenized Vault Standard", as defined in + * https://eips.ethereum.org/EIPS/eip-4626[ERC-4626]. + * + * _Available since v4.7._ + */ +interface IERC4626 is IERC20, IERC20Metadata { + event Deposit(address indexed sender, address indexed owner, uint256 assets, uint256 shares); + + event Withdraw( + address indexed sender, + address indexed receiver, + address indexed owner, + uint256 assets, + uint256 shares + ); + + /** + * @dev Returns the address of the underlying token used for the Vault for accounting, depositing, and withdrawing. + * + * - MUST be an ERC-20 token contract. + * - MUST NOT revert. + */ + function asset() external view returns (address assetTokenAddress); + + /** + * @dev Returns the total amount of the underlying asset that is “managed” by Vault. + * + * - SHOULD include any compounding that occurs from yield. + * - MUST be inclusive of any fees that are charged against assets in the Vault. + * - MUST NOT revert. + */ + function totalAssets() external view returns (uint256 totalManagedAssets); + + /** + * @dev Returns the amount of shares that the Vault would exchange for the amount of assets provided, in an ideal + * scenario where all the conditions are met. + * + * - MUST NOT be inclusive of any fees that are charged against assets in the Vault. + * - MUST NOT show any variations depending on the caller. + * - MUST NOT reflect slippage or other on-chain conditions, when performing the actual exchange. + * - MUST NOT revert. + * + * NOTE: This calculation MAY NOT reflect the “per-user” price-per-share, and instead should reflect the + * “average-user’s” price-per-share, meaning what the average user should expect to see when exchanging to and + * from. + */ + function convertToShares(uint256 assets) external view returns (uint256 shares); + + /** + * @dev Returns the amount of assets that the Vault would exchange for the amount of shares provided, in an ideal + * scenario where all the conditions are met. + * + * - MUST NOT be inclusive of any fees that are charged against assets in the Vault. + * - MUST NOT show any variations depending on the caller. + * - MUST NOT reflect slippage or other on-chain conditions, when performing the actual exchange. + * - MUST NOT revert. + * + * NOTE: This calculation MAY NOT reflect the “per-user” price-per-share, and instead should reflect the + * “average-user’s” price-per-share, meaning what the average user should expect to see when exchanging to and + * from. + */ + function convertToAssets(uint256 shares) external view returns (uint256 assets); + + /** + * @dev Returns the maximum amount of the underlying asset that can be deposited into the Vault for the receiver, + * through a deposit call. + * + * - MUST return a limited value if receiver is subject to some deposit limit. + * - MUST return 2 ** 256 - 1 if there is no limit on the maximum amount of assets that may be deposited. + * - MUST NOT revert. + */ + function maxDeposit(address receiver) external view returns (uint256 maxAssets); + + /** + * @dev Allows an on-chain or off-chain user to simulate the effects of their deposit at the current block, given + * current on-chain conditions. + * + * - MUST return as close to and no more than the exact amount of Vault shares that would be minted in a deposit + * call in the same transaction. I.e. deposit should return the same or more shares as previewDeposit if called + * in the same transaction. + * - MUST NOT account for deposit limits like those returned from maxDeposit and should always act as though the + * deposit would be accepted, regardless if the user has enough tokens approved, etc. + * - MUST be inclusive of deposit fees. Integrators should be aware of the existence of deposit fees. + * - MUST NOT revert. + * + * NOTE: any unfavorable discrepancy between convertToShares and previewDeposit SHOULD be considered slippage in + * share price or some other type of condition, meaning the depositor will lose assets by depositing. + */ + function previewDeposit(uint256 assets) external view returns (uint256 shares); + + /** + * @dev Mints shares Vault shares to receiver by depositing exactly amount of underlying tokens. + * + * - MUST emit the Deposit event. + * - MAY support an additional flow in which the underlying tokens are owned by the Vault contract before the + * deposit execution, and are accounted for during deposit. + * - MUST revert if all of assets cannot be deposited (due to deposit limit being reached, slippage, the user not + * approving enough underlying tokens to the Vault contract, etc). + * + * NOTE: most implementations will require pre-approval of the Vault with the Vault’s underlying asset token. + */ + function deposit(uint256 assets, address receiver) external returns (uint256 shares); + + /** + * @dev Returns the maximum amount of the Vault shares that can be minted for the receiver, through a mint call. + * - MUST return a limited value if receiver is subject to some mint limit. + * - MUST return 2 ** 256 - 1 if there is no limit on the maximum amount of shares that may be minted. + * - MUST NOT revert. + */ + function maxMint(address receiver) external view returns (uint256 maxShares); + + /** + * @dev Allows an on-chain or off-chain user to simulate the effects of their mint at the current block, given + * current on-chain conditions. + * + * - MUST return as close to and no fewer than the exact amount of assets that would be deposited in a mint call + * in the same transaction. I.e. mint should return the same or fewer assets as previewMint if called in the + * same transaction. + * - MUST NOT account for mint limits like those returned from maxMint and should always act as though the mint + * would be accepted, regardless if the user has enough tokens approved, etc. + * - MUST be inclusive of deposit fees. Integrators should be aware of the existence of deposit fees. + * - MUST NOT revert. + * + * NOTE: any unfavorable discrepancy between convertToAssets and previewMint SHOULD be considered slippage in + * share price or some other type of condition, meaning the depositor will lose assets by minting. + */ + function previewMint(uint256 shares) external view returns (uint256 assets); + + /** + * @dev Mints exactly shares Vault shares to receiver by depositing amount of underlying tokens. + * + * - MUST emit the Deposit event. + * - MAY support an additional flow in which the underlying tokens are owned by the Vault contract before the mint + * execution, and are accounted for during mint. + * - MUST revert if all of shares cannot be minted (due to deposit limit being reached, slippage, the user not + * approving enough underlying tokens to the Vault contract, etc). + * + * NOTE: most implementations will require pre-approval of the Vault with the Vault’s underlying asset token. + */ + function mint(uint256 shares, address receiver) external returns (uint256 assets); + + /** + * @dev Returns the maximum amount of the underlying asset that can be withdrawn from the owner balance in the + * Vault, through a withdraw call. + * + * - MUST return a limited value if owner is subject to some withdrawal limit or timelock. + * - MUST NOT revert. + */ + function maxWithdraw(address owner) external view returns (uint256 maxAssets); + + /** + * @dev Allows an on-chain or off-chain user to simulate the effects of their withdrawal at the current block, + * given current on-chain conditions. + * + * - MUST return as close to and no fewer than the exact amount of Vault shares that would be burned in a withdraw + * call in the same transaction. I.e. withdraw should return the same or fewer shares as previewWithdraw if + * called + * in the same transaction. + * - MUST NOT account for withdrawal limits like those returned from maxWithdraw and should always act as though + * the withdrawal would be accepted, regardless if the user has enough shares, etc. + * - MUST be inclusive of withdrawal fees. Integrators should be aware of the existence of withdrawal fees. + * - MUST NOT revert. + * + * NOTE: any unfavorable discrepancy between convertToShares and previewWithdraw SHOULD be considered slippage in + * share price or some other type of condition, meaning the depositor will lose assets by depositing. + */ + function previewWithdraw(uint256 assets) external view returns (uint256 shares); + + /** + * @dev Burns shares from owner and sends exactly assets of underlying tokens to receiver. + * + * - MUST emit the Withdraw event. + * - MAY support an additional flow in which the underlying tokens are owned by the Vault contract before the + * withdraw execution, and are accounted for during withdraw. + * - MUST revert if all of assets cannot be withdrawn (due to withdrawal limit being reached, slippage, the owner + * not having enough shares, etc). + * + * Note that some implementations will require pre-requesting to the Vault before a withdrawal may be performed. + * Those methods should be performed separately. + */ + function withdraw(uint256 assets, address receiver, address owner) external returns (uint256 shares); + + /** + * @dev Returns the maximum amount of Vault shares that can be redeemed from the owner balance in the Vault, + * through a redeem call. + * + * - MUST return a limited value if owner is subject to some withdrawal limit or timelock. + * - MUST return balanceOf(owner) if owner is not subject to any withdrawal limit or timelock. + * - MUST NOT revert. + */ + function maxRedeem(address owner) external view returns (uint256 maxShares); + + /** + * @dev Allows an on-chain or off-chain user to simulate the effects of their redeemption at the current block, + * given current on-chain conditions. + * + * - MUST return as close to and no more than the exact amount of assets that would be withdrawn in a redeem call + * in the same transaction. I.e. redeem should return the same or more assets as previewRedeem if called in the + * same transaction. + * - MUST NOT account for redemption limits like those returned from maxRedeem and should always act as though the + * redemption would be accepted, regardless if the user has enough shares, etc. + * - MUST be inclusive of withdrawal fees. Integrators should be aware of the existence of withdrawal fees. + * - MUST NOT revert. + * + * NOTE: any unfavorable discrepancy between convertToAssets and previewRedeem SHOULD be considered slippage in + * share price or some other type of condition, meaning the depositor will lose assets by redeeming. + */ + function previewRedeem(uint256 shares) external view returns (uint256 assets); + + /** + * @dev Burns exactly shares from owner and sends assets of underlying tokens to receiver. + * + * - MUST emit the Withdraw event. + * - MAY support an additional flow in which the underlying tokens are owned by the Vault contract before the + * redeem execution, and are accounted for during redeem. + * - MUST revert if all of shares cannot be redeemed (due to withdrawal limit being reached, slippage, the owner + * not having enough shares, etc). + * + * NOTE: some implementations will require pre-requesting to the Vault before a withdrawal may be performed. + * Those methods should be performed separately. + */ + function redeem(uint256 shares, address receiver, address owner) external returns (uint256 assets); +} diff --git a/lib/openzeppelin-contracts/contracts/interfaces/IERC721.sol b/lib/openzeppelin-contracts/contracts/interfaces/IERC721.sol new file mode 100644 index 0000000..822b311 --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/interfaces/IERC721.sol @@ -0,0 +1,6 @@ +// SPDX-License-Identifier: MIT +// OpenZeppelin Contracts v4.4.1 (interfaces/IERC721.sol) + +pragma solidity ^0.8.0; + +import "../token/ERC721/IERC721.sol"; diff --git a/lib/openzeppelin-contracts/contracts/interfaces/IERC721Enumerable.sol b/lib/openzeppelin-contracts/contracts/interfaces/IERC721Enumerable.sol new file mode 100644 index 0000000..e39a5a0 --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/interfaces/IERC721Enumerable.sol @@ -0,0 +1,6 @@ +// SPDX-License-Identifier: MIT +// OpenZeppelin Contracts v4.4.1 (interfaces/IERC721Enumerable.sol) + +pragma solidity ^0.8.0; + +import "../token/ERC721/extensions/IERC721Enumerable.sol"; diff --git a/lib/openzeppelin-contracts/contracts/interfaces/IERC721Metadata.sol b/lib/openzeppelin-contracts/contracts/interfaces/IERC721Metadata.sol new file mode 100644 index 0000000..afe2707 --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/interfaces/IERC721Metadata.sol @@ -0,0 +1,6 @@ +// SPDX-License-Identifier: MIT +// OpenZeppelin Contracts v4.4.1 (interfaces/IERC721Metadata.sol) + +pragma solidity ^0.8.0; + +import "../token/ERC721/extensions/IERC721Metadata.sol"; diff --git a/lib/openzeppelin-contracts/contracts/interfaces/IERC721Receiver.sol b/lib/openzeppelin-contracts/contracts/interfaces/IERC721Receiver.sol new file mode 100644 index 0000000..c9c153a --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/interfaces/IERC721Receiver.sol @@ -0,0 +1,6 @@ +// SPDX-License-Identifier: MIT +// OpenZeppelin Contracts v4.4.1 (interfaces/IERC721Receiver.sol) + +pragma solidity ^0.8.0; + +import "../token/ERC721/IERC721Receiver.sol"; diff --git a/lib/openzeppelin-contracts/contracts/interfaces/IERC777.sol b/lib/openzeppelin-contracts/contracts/interfaces/IERC777.sol new file mode 100644 index 0000000..b97ba7b --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/interfaces/IERC777.sol @@ -0,0 +1,6 @@ +// SPDX-License-Identifier: MIT +// OpenZeppelin Contracts v4.4.1 (interfaces/IERC777.sol) + +pragma solidity ^0.8.0; + +import "../token/ERC777/IERC777.sol"; diff --git a/lib/openzeppelin-contracts/contracts/interfaces/IERC777Recipient.sol b/lib/openzeppelin-contracts/contracts/interfaces/IERC777Recipient.sol new file mode 100644 index 0000000..0ce2704 --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/interfaces/IERC777Recipient.sol @@ -0,0 +1,6 @@ +// SPDX-License-Identifier: MIT +// OpenZeppelin Contracts v4.4.1 (interfaces/IERC777Recipient.sol) + +pragma solidity ^0.8.0; + +import "../token/ERC777/IERC777Recipient.sol"; diff --git a/lib/openzeppelin-contracts/contracts/interfaces/IERC777Sender.sol b/lib/openzeppelin-contracts/contracts/interfaces/IERC777Sender.sol new file mode 100644 index 0000000..f1f17a2 --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/interfaces/IERC777Sender.sol @@ -0,0 +1,6 @@ +// SPDX-License-Identifier: MIT +// OpenZeppelin Contracts v4.4.1 (interfaces/IERC777Sender.sol) + +pragma solidity ^0.8.0; + +import "../token/ERC777/IERC777Sender.sol"; diff --git a/lib/openzeppelin-contracts/contracts/interfaces/README.adoc b/lib/openzeppelin-contracts/contracts/interfaces/README.adoc new file mode 100644 index 0000000..5b4cedf --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/interfaces/README.adoc @@ -0,0 +1,56 @@ += Interfaces + +[.readme-notice] +NOTE: This document is better viewed at https://docs.openzeppelin.com/contracts/api/interfaces + +== List of standardized interfaces +These interfaces are available as `.sol` files, and also as compiler `.json` ABI files (through the npm package). These +are useful to interact with third party contracts that implement them. + +- {IERC20} +- {IERC20Metadata} +- {IERC165} +- {IERC721} +- {IERC721Receiver} +- {IERC721Enumerable} +- {IERC721Metadata} +- {IERC777} +- {IERC777Recipient} +- {IERC777Sender} +- {IERC1155} +- {IERC1155Receiver} +- {IERC1155MetadataURI} +- {IERC1271} +- {IERC1363} +- {IERC1820Implementer} +- {IERC1820Registry} +- {IERC1822Proxiable} +- {IERC2612} +- {IERC2981} +- {IERC3156FlashLender} +- {IERC3156FlashBorrower} +- {IERC4626} + +== Detailed ABI + +{{IERC1271}} + +{{IERC1363}} + +{{IERC1363Receiver}} + +{{IERC1820Implementer}} + +{{IERC1820Registry}} + +{{IERC1822Proxiable}} + +{{IERC2612}} + +{{IERC2981}} + +{{IERC3156FlashLender}} + +{{IERC3156FlashBorrower}} + +{{IERC4626}} \ No newline at end of file diff --git a/lib/openzeppelin-contracts/contracts/interfaces/draft-IERC1822.sol b/lib/openzeppelin-contracts/contracts/interfaces/draft-IERC1822.sol new file mode 100644 index 0000000..3b73d74 --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/interfaces/draft-IERC1822.sol @@ -0,0 +1,20 @@ +// SPDX-License-Identifier: MIT +// OpenZeppelin Contracts (last updated v4.5.0) (interfaces/draft-IERC1822.sol) + +pragma solidity ^0.8.0; + +/** + * @dev ERC1822: Universal Upgradeable Proxy Standard (UUPS) documents a method for upgradeability through a simplified + * proxy whose upgrades are fully controlled by the current implementation. + */ +interface IERC1822Proxiable { + /** + * @dev Returns the storage slot that the proxiable contract assumes is being used to store the implementation + * address. + * + * IMPORTANT: A proxy pointing at a proxiable contract should not be considered proxiable itself, because this risks + * bricking a proxy that upgrades to it, by delegating to itself until out of gas. Thus it is critical that this + * function revert if invoked through a proxy. + */ + function proxiableUUID() external view returns (bytes32); +} diff --git a/lib/openzeppelin-contracts/contracts/interfaces/draft-IERC2612.sol b/lib/openzeppelin-contracts/contracts/interfaces/draft-IERC2612.sol new file mode 100644 index 0000000..1ea7bf1 --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/interfaces/draft-IERC2612.sol @@ -0,0 +1,7 @@ +// SPDX-License-Identifier: MIT + +pragma solidity ^0.8.0; + +// EIP-2612 is Final as of 2022-11-01. This file is deprecated. + +import "./IERC2612.sol"; diff --git a/lib/openzeppelin-contracts/contracts/metatx/ERC2771Context.sol b/lib/openzeppelin-contracts/contracts/metatx/ERC2771Context.sol new file mode 100644 index 0000000..8cc14b9 --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/metatx/ERC2771Context.sol @@ -0,0 +1,43 @@ +// SPDX-License-Identifier: MIT +// OpenZeppelin Contracts (last updated v4.7.0) (metatx/ERC2771Context.sol) + +pragma solidity ^0.8.9; + +import "../utils/Context.sol"; + +/** + * @dev Context variant with ERC2771 support. + */ +abstract contract ERC2771Context is Context { + /// @custom:oz-upgrades-unsafe-allow state-variable-immutable + address private immutable _trustedForwarder; + + /// @custom:oz-upgrades-unsafe-allow constructor + constructor(address trustedForwarder) { + _trustedForwarder = trustedForwarder; + } + + function isTrustedForwarder(address forwarder) public view virtual returns (bool) { + return forwarder == _trustedForwarder; + } + + function _msgSender() internal view virtual override returns (address sender) { + if (isTrustedForwarder(msg.sender)) { + // The assembly code is more direct than the Solidity version using `abi.decode`. + /// @solidity memory-safe-assembly + assembly { + sender := shr(96, calldataload(sub(calldatasize(), 20))) + } + } else { + return super._msgSender(); + } + } + + function _msgData() internal view virtual override returns (bytes calldata) { + if (isTrustedForwarder(msg.sender)) { + return msg.data[:msg.data.length - 20]; + } else { + return super._msgData(); + } + } +} diff --git a/lib/openzeppelin-contracts/contracts/metatx/MinimalForwarder.sol b/lib/openzeppelin-contracts/contracts/metatx/MinimalForwarder.sol new file mode 100644 index 0000000..9298ae6 --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/metatx/MinimalForwarder.sol @@ -0,0 +1,72 @@ +// SPDX-License-Identifier: MIT +// OpenZeppelin Contracts (last updated v4.8.0) (metatx/MinimalForwarder.sol) + +pragma solidity ^0.8.0; + +import "../utils/cryptography/ECDSA.sol"; +import "../utils/cryptography/EIP712.sol"; + +/** + * @dev Simple minimal forwarder to be used together with an ERC2771 compatible contract. See {ERC2771Context}. + * + * MinimalForwarder is mainly meant for testing, as it is missing features to be a good production-ready forwarder. This + * contract does not intend to have all the properties that are needed for a sound forwarding system. A fully + * functioning forwarding system with good properties requires more complexity. We suggest you look at other projects + * such as the GSN which do have the goal of building a system like that. + */ +contract MinimalForwarder is EIP712 { + using ECDSA for bytes32; + + struct ForwardRequest { + address from; + address to; + uint256 value; + uint256 gas; + uint256 nonce; + bytes data; + } + + bytes32 private constant _TYPEHASH = + keccak256("ForwardRequest(address from,address to,uint256 value,uint256 gas,uint256 nonce,bytes data)"); + + mapping(address => uint256) private _nonces; + + constructor() EIP712("MinimalForwarder", "0.0.1") {} + + function getNonce(address from) public view returns (uint256) { + return _nonces[from]; + } + + function verify(ForwardRequest calldata req, bytes calldata signature) public view returns (bool) { + address signer = _hashTypedDataV4( + keccak256(abi.encode(_TYPEHASH, req.from, req.to, req.value, req.gas, req.nonce, keccak256(req.data))) + ).recover(signature); + return _nonces[req.from] == req.nonce && signer == req.from; + } + + function execute( + ForwardRequest calldata req, + bytes calldata signature + ) public payable returns (bool, bytes memory) { + require(verify(req, signature), "MinimalForwarder: signature does not match request"); + _nonces[req.from] = req.nonce + 1; + + (bool success, bytes memory returndata) = req.to.call{gas: req.gas, value: req.value}( + abi.encodePacked(req.data, req.from) + ); + + // Validate that the relayer has sent enough gas for the call. + // See https://ronan.eth.limo/blog/ethereum-gas-dangers/ + if (gasleft() <= req.gas / 63) { + // We explicitly trigger invalid opcode to consume all gas and bubble-up the effects, since + // neither revert or assert consume all gas since Solidity 0.8.0 + // https://docs.soliditylang.org/en/v0.8.0/control-structures.html#panic-via-assert-and-error-via-require + /// @solidity memory-safe-assembly + assembly { + invalid() + } + } + + return (success, returndata); + } +} diff --git a/lib/openzeppelin-contracts/contracts/metatx/README.adoc b/lib/openzeppelin-contracts/contracts/metatx/README.adoc new file mode 100644 index 0000000..eccdeaf --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/metatx/README.adoc @@ -0,0 +1,12 @@ += Meta Transactions + +[.readme-notice] +NOTE: This document is better viewed at https://docs.openzeppelin.com/contracts/api/metatx + +== Core + +{{ERC2771Context}} + +== Utils + +{{MinimalForwarder}} diff --git a/lib/openzeppelin-contracts/contracts/mocks/AccessControlCrossChainMock.sol b/lib/openzeppelin-contracts/contracts/mocks/AccessControlCrossChainMock.sol new file mode 100644 index 0000000..cd4c3a5 --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/mocks/AccessControlCrossChainMock.sol @@ -0,0 +1,8 @@ +// SPDX-License-Identifier: MIT + +pragma solidity ^0.8.4; + +import "../access/AccessControlCrossChain.sol"; +import "../crosschain/arbitrum/CrossChainEnabledArbitrumL2.sol"; + +contract AccessControlCrossChainMock is AccessControlCrossChain, CrossChainEnabledArbitrumL2 {} diff --git a/lib/openzeppelin-contracts/contracts/mocks/ArraysMock.sol b/lib/openzeppelin-contracts/contracts/mocks/ArraysMock.sol new file mode 100644 index 0000000..2ea17a0 --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/mocks/ArraysMock.sol @@ -0,0 +1,51 @@ +// SPDX-License-Identifier: MIT + +pragma solidity ^0.8.0; + +import "../utils/Arrays.sol"; + +contract Uint256ArraysMock { + using Arrays for uint256[]; + + uint256[] private _array; + + constructor(uint256[] memory array) { + _array = array; + } + + function findUpperBound(uint256 element) external view returns (uint256) { + return _array.findUpperBound(element); + } + + function unsafeAccess(uint256 pos) external view returns (uint256) { + return _array.unsafeAccess(pos).value; + } +} + +contract AddressArraysMock { + using Arrays for address[]; + + address[] private _array; + + constructor(address[] memory array) { + _array = array; + } + + function unsafeAccess(uint256 pos) external view returns (address) { + return _array.unsafeAccess(pos).value; + } +} + +contract Bytes32ArraysMock { + using Arrays for bytes32[]; + + bytes32[] private _array; + + constructor(bytes32[] memory array) { + _array = array; + } + + function unsafeAccess(uint256 pos) external view returns (bytes32) { + return _array.unsafeAccess(pos).value; + } +} diff --git a/lib/openzeppelin-contracts/contracts/mocks/CallReceiverMock.sol b/lib/openzeppelin-contracts/contracts/mocks/CallReceiverMock.sol new file mode 100644 index 0000000..344a105 --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/mocks/CallReceiverMock.sol @@ -0,0 +1,57 @@ +// SPDX-License-Identifier: MIT + +pragma solidity ^0.8.0; + +contract CallReceiverMock { + event MockFunctionCalled(); + event MockFunctionCalledWithArgs(uint256 a, uint256 b); + + uint256[] private _array; + + function mockFunction() public payable returns (string memory) { + emit MockFunctionCalled(); + + return "0x1234"; + } + + function mockFunctionWithArgs(uint256 a, uint256 b) public payable returns (string memory) { + emit MockFunctionCalledWithArgs(a, b); + + return "0x1234"; + } + + function mockFunctionNonPayable() public returns (string memory) { + emit MockFunctionCalled(); + + return "0x1234"; + } + + function mockStaticFunction() public pure returns (string memory) { + return "0x1234"; + } + + function mockFunctionRevertsNoReason() public payable { + revert(); + } + + function mockFunctionRevertsReason() public payable { + revert("CallReceiverMock: reverting"); + } + + function mockFunctionThrows() public payable { + assert(false); + } + + function mockFunctionOutOfGas() public payable { + for (uint256 i = 0; ; ++i) { + _array.push(i); + } + } + + function mockFunctionWritesStorage(bytes32 slot, bytes32 value) public returns (string memory) { + assembly { + sstore(slot, value) + } + return "0x1234"; + } +} diff --git a/lib/openzeppelin-contracts/contracts/mocks/ConditionalEscrowMock.sol b/lib/openzeppelin-contracts/contracts/mocks/ConditionalEscrowMock.sol new file mode 100644 index 0000000..ececf05 --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/mocks/ConditionalEscrowMock.sol @@ -0,0 +1,18 @@ +// SPDX-License-Identifier: MIT + +pragma solidity ^0.8.0; + +import "../utils/escrow/ConditionalEscrow.sol"; + +// mock class using ConditionalEscrow +contract ConditionalEscrowMock is ConditionalEscrow { + mapping(address => bool) private _allowed; + + function setAllowed(address payee, bool allowed) public { + _allowed[payee] = allowed; + } + + function withdrawalAllowed(address payee) public view override returns (bool) { + return _allowed[payee]; + } +} diff --git a/lib/openzeppelin-contracts/contracts/mocks/ContextMock.sol b/lib/openzeppelin-contracts/contracts/mocks/ContextMock.sol new file mode 100644 index 0000000..7759f35 --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/mocks/ContextMock.sol @@ -0,0 +1,29 @@ +// SPDX-License-Identifier: MIT + +pragma solidity ^0.8.0; + +import "../utils/Context.sol"; + +contract ContextMock is Context { + event Sender(address sender); + + function msgSender() public { + emit Sender(_msgSender()); + } + + event Data(bytes data, uint256 integerValue, string stringValue); + + function msgData(uint256 integerValue, string memory stringValue) public { + emit Data(_msgData(), integerValue, stringValue); + } +} + +contract ContextMockCaller { + function callSender(ContextMock context) public { + context.msgSender(); + } + + function callData(ContextMock context, uint256 integerValue, string memory stringValue) public { + context.msgData(integerValue, stringValue); + } +} diff --git a/lib/openzeppelin-contracts/contracts/mocks/DummyImplementation.sol b/lib/openzeppelin-contracts/contracts/mocks/DummyImplementation.sol new file mode 100644 index 0000000..ddcca66 --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/mocks/DummyImplementation.sol @@ -0,0 +1,57 @@ +// SPDX-License-Identifier: MIT + +pragma solidity ^0.8.0; + +abstract contract Impl { + function version() public pure virtual returns (string memory); +} + +contract DummyImplementation { + uint256 public value; + string public text; + uint256[] public values; + + function initializeNonPayable() public { + value = 10; + } + + function initializePayable() public payable { + value = 100; + } + + function initializeNonPayableWithValue(uint256 _value) public { + value = _value; + } + + function initializePayableWithValue(uint256 _value) public payable { + value = _value; + } + + function initialize(uint256 _value, string memory _text, uint256[] memory _values) public { + value = _value; + text = _text; + values = _values; + } + + function get() public pure returns (bool) { + return true; + } + + function version() public pure virtual returns (string memory) { + return "V1"; + } + + function reverts() public pure { + require(false, "DummyImplementation reverted"); + } +} + +contract DummyImplementationV2 is DummyImplementation { + function migrate(uint256 newVal) public payable { + value = newVal; + } + + function version() public pure override returns (string memory) { + return "V2"; + } +} diff --git a/lib/openzeppelin-contracts/contracts/mocks/EIP712Verifier.sol b/lib/openzeppelin-contracts/contracts/mocks/EIP712Verifier.sol new file mode 100644 index 0000000..dcef9ef --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/mocks/EIP712Verifier.sol @@ -0,0 +1,16 @@ +// SPDX-License-Identifier: MIT + +pragma solidity ^0.8.0; + +import "../utils/cryptography/ECDSA.sol"; +import "../utils/cryptography/EIP712.sol"; + +abstract contract EIP712Verifier is EIP712 { + function verify(bytes memory signature, address signer, address mailTo, string memory mailContents) external view { + bytes32 digest = _hashTypedDataV4( + keccak256(abi.encode(keccak256("Mail(address to,string contents)"), mailTo, keccak256(bytes(mailContents)))) + ); + address recoveredSigner = ECDSA.recover(digest, signature); + require(recoveredSigner == signer); + } +} diff --git a/lib/openzeppelin-contracts/contracts/mocks/ERC1271WalletMock.sol b/lib/openzeppelin-contracts/contracts/mocks/ERC1271WalletMock.sol new file mode 100644 index 0000000..0152889 --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/mocks/ERC1271WalletMock.sol @@ -0,0 +1,26 @@ +// SPDX-License-Identifier: MIT + +pragma solidity ^0.8.0; + +import "../access/Ownable.sol"; +import "../interfaces/IERC1271.sol"; +import "../utils/cryptography/ECDSA.sol"; + +contract ERC1271WalletMock is Ownable, IERC1271 { + constructor(address originalOwner) { + transferOwnership(originalOwner); + } + + function isValidSignature(bytes32 hash, bytes memory signature) public view override returns (bytes4 magicValue) { + return ECDSA.recover(hash, signature) == owner() ? this.isValidSignature.selector : bytes4(0); + } +} + +contract ERC1271MaliciousMock is IERC1271 { + function isValidSignature(bytes32, bytes memory) public pure override returns (bytes4) { + assembly { + mstore(0, 0xffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff) + return(0, 32) + } + } +} diff --git a/lib/openzeppelin-contracts/contracts/mocks/ERC165/ERC165MaliciousData.sol b/lib/openzeppelin-contracts/contracts/mocks/ERC165/ERC165MaliciousData.sol new file mode 100644 index 0000000..2446f3d --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/mocks/ERC165/ERC165MaliciousData.sol @@ -0,0 +1,12 @@ +// SPDX-License-Identifier: MIT + +pragma solidity ^0.8.0; + +contract ERC165MaliciousData { + function supportsInterface(bytes4) public pure returns (bool) { + assembly { + mstore(0, 0xffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff) + return(0, 32) + } + } +} diff --git a/lib/openzeppelin-contracts/contracts/mocks/ERC165/ERC165MissingData.sol b/lib/openzeppelin-contracts/contracts/mocks/ERC165/ERC165MissingData.sol new file mode 100644 index 0000000..59cd51a --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/mocks/ERC165/ERC165MissingData.sol @@ -0,0 +1,7 @@ +// SPDX-License-Identifier: MIT + +pragma solidity ^0.8.0; + +contract ERC165MissingData { + function supportsInterface(bytes4 interfaceId) public view {} // missing return +} diff --git a/lib/openzeppelin-contracts/contracts/mocks/ERC165/ERC165NotSupported.sol b/lib/openzeppelin-contracts/contracts/mocks/ERC165/ERC165NotSupported.sol new file mode 100644 index 0000000..486c7f0 --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/mocks/ERC165/ERC165NotSupported.sol @@ -0,0 +1,5 @@ +// SPDX-License-Identifier: MIT + +pragma solidity ^0.8.0; + +contract ERC165NotSupported {} diff --git a/lib/openzeppelin-contracts/contracts/mocks/ERC165/ERC165ReturnBomb.sol b/lib/openzeppelin-contracts/contracts/mocks/ERC165/ERC165ReturnBomb.sol new file mode 100644 index 0000000..e53235d --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/mocks/ERC165/ERC165ReturnBomb.sol @@ -0,0 +1,18 @@ +// SPDX-License-Identifier: MIT + +pragma solidity ^0.8.0; + +import "../../utils/introspection/IERC165.sol"; + +contract ERC165ReturnBombMock is IERC165 { + function supportsInterface(bytes4 interfaceId) public pure override returns (bool) { + if (interfaceId == type(IERC165).interfaceId) { + assembly { + mstore(0, 1) + } + } + assembly { + return(0, 101500) + } + } +} diff --git a/lib/openzeppelin-contracts/contracts/mocks/ERC20Mock.sol b/lib/openzeppelin-contracts/contracts/mocks/ERC20Mock.sol new file mode 100644 index 0000000..cc75923 --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/mocks/ERC20Mock.sol @@ -0,0 +1,16 @@ +// SPDX-License-Identifier: MIT +pragma solidity ^0.8.0; + +import {ERC20} from "../token/ERC20/ERC20.sol"; + +contract ERC20Mock is ERC20 { + constructor() ERC20("ERC20Mock", "E20M") {} + + function mint(address account, uint256 amount) external { + _mint(account, amount); + } + + function burn(address account, uint256 amount) external { + _burn(account, amount); + } +} diff --git a/lib/openzeppelin-contracts/contracts/mocks/ERC2771ContextMock.sol b/lib/openzeppelin-contracts/contracts/mocks/ERC2771ContextMock.sol new file mode 100644 index 0000000..387df78 --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/mocks/ERC2771ContextMock.sol @@ -0,0 +1,22 @@ +// SPDX-License-Identifier: MIT + +pragma solidity ^0.8.9; + +import "./ContextMock.sol"; +import "../metatx/ERC2771Context.sol"; + +// By inheriting from ERC2771Context, Context's internal functions are overridden automatically +contract ERC2771ContextMock is ContextMock, ERC2771Context { + /// @custom:oz-upgrades-unsafe-allow constructor + constructor(address trustedForwarder) ERC2771Context(trustedForwarder) { + emit Sender(_msgSender()); // _msgSender() should be accessible during construction + } + + function _msgSender() internal view override(Context, ERC2771Context) returns (address) { + return ERC2771Context._msgSender(); + } + + function _msgData() internal view override(Context, ERC2771Context) returns (bytes calldata) { + return ERC2771Context._msgData(); + } +} diff --git a/lib/openzeppelin-contracts/contracts/mocks/ERC3156FlashBorrowerMock.sol b/lib/openzeppelin-contracts/contracts/mocks/ERC3156FlashBorrowerMock.sol new file mode 100644 index 0000000..6a4410f --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/mocks/ERC3156FlashBorrowerMock.sol @@ -0,0 +1,53 @@ +// SPDX-License-Identifier: MIT + +pragma solidity ^0.8.0; + +import "../token/ERC20/IERC20.sol"; +import "../interfaces/IERC3156.sol"; +import "../utils/Address.sol"; + +/** + * @dev WARNING: this IERC3156FlashBorrower mock implementation is for testing purposes ONLY. + * Writing a secure flash lock borrower is not an easy task, and should be done with the utmost care. + * This is not an example of how it should be done, and no pattern present in this mock should be considered secure. + * Following best practices, always have your contract properly audited before using them to manipulate important funds on + * live networks. + */ +contract ERC3156FlashBorrowerMock is IERC3156FlashBorrower { + bytes32 internal constant _RETURN_VALUE = keccak256("ERC3156FlashBorrower.onFlashLoan"); + + bool immutable _enableApprove; + bool immutable _enableReturn; + + event BalanceOf(address token, address account, uint256 value); + event TotalSupply(address token, uint256 value); + + constructor(bool enableReturn, bool enableApprove) { + _enableApprove = enableApprove; + _enableReturn = enableReturn; + } + + function onFlashLoan( + address /*initiator*/, + address token, + uint256 amount, + uint256 fee, + bytes calldata data + ) public override returns (bytes32) { + require(msg.sender == token); + + emit BalanceOf(token, address(this), IERC20(token).balanceOf(address(this))); + emit TotalSupply(token, IERC20(token).totalSupply()); + + if (data.length > 0) { + // WARNING: This code is for testing purposes only! Do not use. + Address.functionCall(token, data); + } + + if (_enableApprove) { + IERC20(token).approve(token, amount + fee); + } + + return _enableReturn ? _RETURN_VALUE : bytes32(0); + } +} diff --git a/lib/openzeppelin-contracts/contracts/mocks/ERC4626Mock.sol b/lib/openzeppelin-contracts/contracts/mocks/ERC4626Mock.sol new file mode 100644 index 0000000..ef2d1a4 --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/mocks/ERC4626Mock.sol @@ -0,0 +1,16 @@ +// SPDX-License-Identifier: MIT +pragma solidity ^0.8.0; + +import "../token/ERC20/extensions/ERC4626.sol"; + +contract ERC4626Mock is ERC4626 { + constructor(address underlying) ERC20("ERC4626Mock", "E4626M") ERC4626(IERC20(underlying)) {} + + function mint(address account, uint256 amount) external { + _mint(account, amount); + } + + function burn(address account, uint256 amount) external { + _burn(account, amount); + } +} diff --git a/lib/openzeppelin-contracts/contracts/mocks/EtherReceiverMock.sol b/lib/openzeppelin-contracts/contracts/mocks/EtherReceiverMock.sol new file mode 100644 index 0000000..a11e646 --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/mocks/EtherReceiverMock.sol @@ -0,0 +1,17 @@ +// SPDX-License-Identifier: MIT + +pragma solidity ^0.8.0; + +contract EtherReceiverMock { + bool private _acceptEther; + + function setAcceptEther(bool acceptEther) public { + _acceptEther = acceptEther; + } + + receive() external payable { + if (!_acceptEther) { + revert(); + } + } +} diff --git a/lib/openzeppelin-contracts/contracts/mocks/InitializableMock.sol b/lib/openzeppelin-contracts/contracts/mocks/InitializableMock.sol new file mode 100644 index 0000000..34040b6 --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/mocks/InitializableMock.sol @@ -0,0 +1,130 @@ +// SPDX-License-Identifier: MIT + +pragma solidity ^0.8.0; + +import "../proxy/utils/Initializable.sol"; + +/** + * @title InitializableMock + * @dev This contract is a mock to test initializable functionality + */ +contract InitializableMock is Initializable { + bool public initializerRan; + bool public onlyInitializingRan; + uint256 public x; + + function isInitializing() public view returns (bool) { + return _isInitializing(); + } + + function initialize() public initializer { + initializerRan = true; + } + + function initializeOnlyInitializing() public onlyInitializing { + onlyInitializingRan = true; + } + + function initializerNested() public initializer { + initialize(); + } + + function onlyInitializingNested() public initializer { + initializeOnlyInitializing(); + } + + function initializeWithX(uint256 _x) public payable initializer { + x = _x; + } + + function nonInitializable(uint256 _x) public payable { + x = _x; + } + + function fail() public pure { + require(false, "InitializableMock forced failure"); + } +} + +contract ConstructorInitializableMock is Initializable { + bool public initializerRan; + bool public onlyInitializingRan; + + constructor() initializer { + initialize(); + initializeOnlyInitializing(); + } + + function initialize() public initializer { + initializerRan = true; + } + + function initializeOnlyInitializing() public onlyInitializing { + onlyInitializingRan = true; + } +} + +contract ChildConstructorInitializableMock is ConstructorInitializableMock { + bool public childInitializerRan; + + constructor() initializer { + childInitialize(); + } + + function childInitialize() public initializer { + childInitializerRan = true; + } +} + +contract ReinitializerMock is Initializable { + uint256 public counter; + + function getInitializedVersion() public view returns (uint8) { + return _getInitializedVersion(); + } + + function initialize() public initializer { + doStuff(); + } + + function reinitialize(uint8 i) public reinitializer(i) { + doStuff(); + } + + function nestedReinitialize(uint8 i, uint8 j) public reinitializer(i) { + reinitialize(j); + } + + function chainReinitialize(uint8 i, uint8 j) public { + reinitialize(i); + reinitialize(j); + } + + function disableInitializers() public { + _disableInitializers(); + } + + function doStuff() public onlyInitializing { + counter++; + } +} + +contract DisableNew is Initializable { + constructor() { + _disableInitializers(); + } +} + +contract DisableOld is Initializable { + constructor() initializer {} +} + +contract DisableBad1 is DisableNew, DisableOld {} + +contract DisableBad2 is Initializable { + constructor() initializer { + _disableInitializers(); + } +} + +contract DisableOk is DisableOld, DisableNew {} diff --git a/lib/openzeppelin-contracts/contracts/mocks/MulticallTest.sol b/lib/openzeppelin-contracts/contracts/mocks/MulticallTest.sol new file mode 100644 index 0000000..fcbec6a --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/mocks/MulticallTest.sol @@ -0,0 +1,23 @@ +// SPDX-License-Identifier: MIT + +pragma solidity ^0.8.0; + +import "./token/ERC20MulticallMock.sol"; + +contract MulticallTest { + function checkReturnValues( + ERC20MulticallMock multicallToken, + address[] calldata recipients, + uint256[] calldata amounts + ) external { + bytes[] memory calls = new bytes[](recipients.length); + for (uint256 i = 0; i < recipients.length; i++) { + calls[i] = abi.encodeWithSignature("transfer(address,uint256)", recipients[i], amounts[i]); + } + + bytes[] memory results = multicallToken.multicall(calls); + for (uint256 i = 0; i < results.length; i++) { + require(abi.decode(results[i], (bool))); + } + } +} diff --git a/lib/openzeppelin-contracts/contracts/mocks/MultipleInheritanceInitializableMocks.sol b/lib/openzeppelin-contracts/contracts/mocks/MultipleInheritanceInitializableMocks.sol new file mode 100644 index 0000000..e79cd92 --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/mocks/MultipleInheritanceInitializableMocks.sol @@ -0,0 +1,131 @@ +// SPDX-License-Identifier: MIT + +pragma solidity ^0.8.0; + +import "../proxy/utils/Initializable.sol"; + +// Sample contracts showing upgradeability with multiple inheritance. +// Child contract inherits from Father and Mother contracts, and Father extends from Gramps. +// +// Human +// / \ +// | Gramps +// | | +// Mother Father +// | | +// -- Child -- + +/** + * Sample base initializable contract that is a human + */ +contract SampleHuman is Initializable { + bool public isHuman; + + function initialize() public initializer { + __SampleHuman_init(); + } + + // solhint-disable-next-line func-name-mixedcase + function __SampleHuman_init() internal onlyInitializing { + __SampleHuman_init_unchained(); + } + + // solhint-disable-next-line func-name-mixedcase + function __SampleHuman_init_unchained() internal onlyInitializing { + isHuman = true; + } +} + +/** + * Sample base initializable contract that defines a field mother + */ +contract SampleMother is Initializable, SampleHuman { + uint256 public mother; + + function initialize(uint256 value) public initializer { + __SampleMother_init(value); + } + + // solhint-disable-next-line func-name-mixedcase + function __SampleMother_init(uint256 value) internal onlyInitializing { + __SampleHuman_init(); + __SampleMother_init_unchained(value); + } + + // solhint-disable-next-line func-name-mixedcase + function __SampleMother_init_unchained(uint256 value) internal onlyInitializing { + mother = value; + } +} + +/** + * Sample base initializable contract that defines a field gramps + */ +contract SampleGramps is Initializable, SampleHuman { + string public gramps; + + function initialize(string memory value) public initializer { + __SampleGramps_init(value); + } + + // solhint-disable-next-line func-name-mixedcase + function __SampleGramps_init(string memory value) internal onlyInitializing { + __SampleHuman_init(); + __SampleGramps_init_unchained(value); + } + + // solhint-disable-next-line func-name-mixedcase + function __SampleGramps_init_unchained(string memory value) internal onlyInitializing { + gramps = value; + } +} + +/** + * Sample base initializable contract that defines a field father and extends from gramps + */ +contract SampleFather is Initializable, SampleGramps { + uint256 public father; + + function initialize(string memory _gramps, uint256 _father) public initializer { + __SampleFather_init(_gramps, _father); + } + + // solhint-disable-next-line func-name-mixedcase + function __SampleFather_init(string memory _gramps, uint256 _father) internal onlyInitializing { + __SampleGramps_init(_gramps); + __SampleFather_init_unchained(_father); + } + + // solhint-disable-next-line func-name-mixedcase + function __SampleFather_init_unchained(uint256 _father) internal onlyInitializing { + father = _father; + } +} + +/** + * Child extends from mother, father (gramps) + */ +contract SampleChild is Initializable, SampleMother, SampleFather { + uint256 public child; + + function initialize(uint256 _mother, string memory _gramps, uint256 _father, uint256 _child) public initializer { + __SampleChild_init(_mother, _gramps, _father, _child); + } + + // solhint-disable-next-line func-name-mixedcase + function __SampleChild_init( + uint256 _mother, + string memory _gramps, + uint256 _father, + uint256 _child + ) internal onlyInitializing { + __SampleMother_init(_mother); + __SampleFather_init(_gramps, _father); + __SampleChild_init_unchained(_child); + } + + // solhint-disable-next-line func-name-mixedcase + function __SampleChild_init_unchained(uint256 _child) internal onlyInitializing { + child = _child; + } +} diff --git a/lib/openzeppelin-contracts/contracts/mocks/PausableMock.sol b/lib/openzeppelin-contracts/contracts/mocks/PausableMock.sol new file mode 100644 index 0000000..98bcfd5 --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/mocks/PausableMock.sol @@ -0,0 +1,31 @@ +// SPDX-License-Identifier: MIT + +pragma solidity ^0.8.0; + +import "../security/Pausable.sol"; + +contract PausableMock is Pausable { + bool public drasticMeasureTaken; + uint256 public count; + + constructor() { + drasticMeasureTaken = false; + count = 0; + } + + function normalProcess() external whenNotPaused { + count++; + } + + function drasticMeasure() external whenPaused { + drasticMeasureTaken = true; + } + + function pause() external { + _pause(); + } + + function unpause() external { + _unpause(); + } +} diff --git a/lib/openzeppelin-contracts/contracts/mocks/PullPaymentMock.sol b/lib/openzeppelin-contracts/contracts/mocks/PullPaymentMock.sol new file mode 100644 index 0000000..8a708e3 --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/mocks/PullPaymentMock.sol @@ -0,0 +1,15 @@ +// SPDX-License-Identifier: MIT + +pragma solidity ^0.8.0; + +import "../security/PullPayment.sol"; + +// mock class using PullPayment +contract PullPaymentMock is PullPayment { + constructor() payable {} + + // test helper function to call asyncTransfer + function callTransfer(address dest, uint256 amount) public { + _asyncTransfer(dest, amount); + } +} diff --git a/lib/openzeppelin-contracts/contracts/mocks/ReentrancyAttack.sol b/lib/openzeppelin-contracts/contracts/mocks/ReentrancyAttack.sol new file mode 100644 index 0000000..4de1812 --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/mocks/ReentrancyAttack.sol @@ -0,0 +1,12 @@ +// SPDX-License-Identifier: MIT + +pragma solidity ^0.8.0; + +import "../utils/Context.sol"; + +contract ReentrancyAttack is Context { + function callSender(bytes4 data) public { + (bool success, ) = _msgSender().call(abi.encodeWithSelector(data)); + require(success, "ReentrancyAttack: failed call"); + } +} diff --git a/lib/openzeppelin-contracts/contracts/mocks/ReentrancyMock.sol b/lib/openzeppelin-contracts/contracts/mocks/ReentrancyMock.sol new file mode 100644 index 0000000..161e1d3 --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/mocks/ReentrancyMock.sol @@ -0,0 +1,51 @@ +// SPDX-License-Identifier: MIT + +pragma solidity ^0.8.0; + +import "../security/ReentrancyGuard.sol"; +import "./ReentrancyAttack.sol"; + +contract ReentrancyMock is ReentrancyGuard { + uint256 public counter; + + constructor() { + counter = 0; + } + + function callback() external nonReentrant { + _count(); + } + + function countLocalRecursive(uint256 n) public nonReentrant { + if (n > 0) { + _count(); + countLocalRecursive(n - 1); + } + } + + function countThisRecursive(uint256 n) public nonReentrant { + if (n > 0) { + _count(); + (bool success, ) = address(this).call(abi.encodeWithSignature("countThisRecursive(uint256)", n - 1)); + require(success, "ReentrancyMock: failed call"); + } + } + + function countAndCall(ReentrancyAttack attacker) public nonReentrant { + _count(); + bytes4 func = bytes4(keccak256("callback()")); + attacker.callSender(func); + } + + function _count() private { + counter += 1; + } + + function guardedCheckEntered() public nonReentrant { + require(_reentrancyGuardEntered()); + } + + function unguardedCheckNotEntered() public view { + require(!_reentrancyGuardEntered()); + } +} diff --git a/lib/openzeppelin-contracts/contracts/mocks/RegressionImplementation.sol b/lib/openzeppelin-contracts/contracts/mocks/RegressionImplementation.sol new file mode 100644 index 0000000..be6b501 --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/mocks/RegressionImplementation.sol @@ -0,0 +1,61 @@ +// SPDX-License-Identifier: MIT + +pragma solidity ^0.8.0; + +import "../proxy/utils/Initializable.sol"; + +contract Implementation1 is Initializable { + uint256 internal _value; + + function initialize() public initializer {} + + function setValue(uint256 _number) public { + _value = _number; + } +} + +contract Implementation2 is Initializable { + uint256 internal _value; + + function initialize() public initializer {} + + function setValue(uint256 _number) public { + _value = _number; + } + + function getValue() public view returns (uint256) { + return _value; + } +} + +contract Implementation3 is Initializable { + uint256 internal _value; + + function initialize() public initializer {} + + function setValue(uint256 _number) public { + _value = _number; + } + + function getValue(uint256 _number) public view returns (uint256) { + return _value + _number; + } +} + +contract Implementation4 is Initializable { + uint256 internal _value; + + function initialize() public initializer {} + + function setValue(uint256 _number) public { + _value = _number; + } + + function getValue() public view returns (uint256) { + return _value; + } + + fallback() external { + _value = 1; + } +} diff --git a/lib/openzeppelin-contracts/contracts/mocks/SafeMathMemoryCheck.sol b/lib/openzeppelin-contracts/contracts/mocks/SafeMathMemoryCheck.sol new file mode 100644 index 0000000..9694688 --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/mocks/SafeMathMemoryCheck.sol @@ -0,0 +1,72 @@ +// SPDX-License-Identifier: MIT + +pragma solidity ^0.8.0; + +import "../utils/math/SafeMath.sol"; + +library SafeMathMemoryCheck { + function addMemoryCheck() internal pure returns (uint256 mem) { + uint256 length = 32; + assembly { + mem := mload(0x40) + } + for (uint256 i = 0; i < length; ++i) { + SafeMath.add(1, 1); + } + assembly { + mem := sub(mload(0x40), mem) + } + } + + function subMemoryCheck() internal pure returns (uint256 mem) { + uint256 length = 32; + assembly { + mem := mload(0x40) + } + for (uint256 i = 0; i < length; ++i) { + SafeMath.sub(1, 1); + } + assembly { + mem := sub(mload(0x40), mem) + } + } + + function mulMemoryCheck() internal pure returns (uint256 mem) { + uint256 length = 32; + assembly { + mem := mload(0x40) + } + for (uint256 i = 0; i < length; ++i) { + SafeMath.mul(1, 1); + } + assembly { + mem := sub(mload(0x40), mem) + } + } + + function divMemoryCheck() internal pure returns (uint256 mem) { + uint256 length = 32; + assembly { + mem := mload(0x40) + } + for (uint256 i = 0; i < length; ++i) { + SafeMath.div(1, 1); + } + assembly { + mem := sub(mload(0x40), mem) + } + } + + function modMemoryCheck() internal pure returns (uint256 mem) { + uint256 length = 32; + assembly { + mem := mload(0x40) + } + for (uint256 i = 0; i < length; ++i) { + SafeMath.mod(1, 1); + } + assembly { + mem := sub(mload(0x40), mem) + } + } +} diff --git a/lib/openzeppelin-contracts/contracts/mocks/SingleInheritanceInitializableMocks.sol b/lib/openzeppelin-contracts/contracts/mocks/SingleInheritanceInitializableMocks.sol new file mode 100644 index 0000000..6c82dd2 --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/mocks/SingleInheritanceInitializableMocks.sol @@ -0,0 +1,49 @@ +// SPDX-License-Identifier: MIT + +pragma solidity ^0.8.0; + +import "../proxy/utils/Initializable.sol"; + +/** + * @title MigratableMockV1 + * @dev This contract is a mock to test initializable functionality through migrations + */ +contract MigratableMockV1 is Initializable { + uint256 public x; + + function initialize(uint256 value) public payable initializer { + x = value; + } +} + +/** + * @title MigratableMockV2 + * @dev This contract is a mock to test migratable functionality with params + */ +contract MigratableMockV2 is MigratableMockV1 { + bool internal _migratedV2; + uint256 public y; + + function migrate(uint256 value, uint256 anotherValue) public payable { + require(!_migratedV2); + x = value; + y = anotherValue; + _migratedV2 = true; + } +} + +/** + * @title MigratableMockV3 + * @dev This contract is a mock to test migratable functionality without params + */ +contract MigratableMockV3 is MigratableMockV2 { + bool internal _migratedV3; + + function migrate() public payable { + require(!_migratedV3); + uint256 oldX = x; + x = y; + y = oldX; + _migratedV3 = true; + } +} diff --git a/lib/openzeppelin-contracts/contracts/mocks/StorageSlotMock.sol b/lib/openzeppelin-contracts/contracts/mocks/StorageSlotMock.sol new file mode 100644 index 0000000..5d099fc --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/mocks/StorageSlotMock.sol @@ -0,0 +1,41 @@ +// SPDX-License-Identifier: MIT + +pragma solidity ^0.8.0; + +import "../utils/StorageSlot.sol"; + +contract StorageSlotMock { + using StorageSlot for bytes32; + + function setBoolean(bytes32 slot, bool value) public { + slot.getBooleanSlot().value = value; + } + + function setAddress(bytes32 slot, address value) public { + slot.getAddressSlot().value = value; + } + + function setBytes32(bytes32 slot, bytes32 value) public { + slot.getBytes32Slot().value = value; + } + + function setUint256(bytes32 slot, uint256 value) public { + slot.getUint256Slot().value = value; + } + + function getBoolean(bytes32 slot) public view returns (bool) { + return slot.getBooleanSlot().value; + } + + function getAddress(bytes32 slot) public view returns (address) { + return slot.getAddressSlot().value; + } + + function getBytes32(bytes32 slot) public view returns (bytes32) { + return slot.getBytes32Slot().value; + } + + function getUint256(bytes32 slot) public view returns (uint256) { + return slot.getUint256Slot().value; + } +} diff --git a/lib/openzeppelin-contracts/contracts/mocks/TimersBlockNumberImpl.sol b/lib/openzeppelin-contracts/contracts/mocks/TimersBlockNumberImpl.sol new file mode 100644 index 0000000..84633e6 --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/mocks/TimersBlockNumberImpl.sol @@ -0,0 +1,39 @@ +// SPDX-License-Identifier: MIT + +pragma solidity ^0.8.0; + +import "../utils/Timers.sol"; + +contract TimersBlockNumberImpl { + using Timers for Timers.BlockNumber; + + Timers.BlockNumber private _timer; + + function getDeadline() public view returns (uint64) { + return _timer.getDeadline(); + } + + function setDeadline(uint64 timestamp) public { + _timer.setDeadline(timestamp); + } + + function reset() public { + _timer.reset(); + } + + function isUnset() public view returns (bool) { + return _timer.isUnset(); + } + + function isStarted() public view returns (bool) { + return _timer.isStarted(); + } + + function isPending() public view returns (bool) { + return _timer.isPending(); + } + + function isExpired() public view returns (bool) { + return _timer.isExpired(); + } +} diff --git a/lib/openzeppelin-contracts/contracts/mocks/TimersTimestampImpl.sol b/lib/openzeppelin-contracts/contracts/mocks/TimersTimestampImpl.sol new file mode 100644 index 0000000..07f9a1b --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/mocks/TimersTimestampImpl.sol @@ -0,0 +1,39 @@ +// SPDX-License-Identifier: MIT + +pragma solidity ^0.8.0; + +import "../utils/Timers.sol"; + +contract TimersTimestampImpl { + using Timers for Timers.Timestamp; + + Timers.Timestamp private _timer; + + function getDeadline() public view returns (uint64) { + return _timer.getDeadline(); + } + + function setDeadline(uint64 timestamp) public { + _timer.setDeadline(timestamp); + } + + function reset() public { + _timer.reset(); + } + + function isUnset() public view returns (bool) { + return _timer.isUnset(); + } + + function isStarted() public view returns (bool) { + return _timer.isStarted(); + } + + function isPending() public view returns (bool) { + return _timer.isPending(); + } + + function isExpired() public view returns (bool) { + return _timer.isExpired(); + } +} diff --git a/lib/openzeppelin-contracts/contracts/mocks/VotesMock.sol b/lib/openzeppelin-contracts/contracts/mocks/VotesMock.sol new file mode 100644 index 0000000..ece08b0 --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/mocks/VotesMock.sol @@ -0,0 +1,34 @@ +// SPDX-License-Identifier: MIT + +pragma solidity ^0.8.0; + +import "../governance/utils/Votes.sol"; + +abstract contract VotesMock is Votes { + mapping(address => uint256) private _balances; + mapping(uint256 => address) private _owners; + + function getTotalSupply() public view returns (uint256) { + return _getTotalSupply(); + } + + function delegate(address account, address newDelegation) public { + return _delegate(account, newDelegation); + } + + function _getVotingUnits(address account) internal view override returns (uint256) { + return _balances[account]; + } + + function _mint(address account, uint256 voteId) internal { + _balances[account] += 1; + _owners[voteId] = account; + _transferVotingUnits(address(0), account, 1); + } + + function _burn(uint256 voteId) internal { + address owner = _owners[voteId]; + _balances[owner] -= 1; + _transferVotingUnits(owner, address(0), 1); + } +} diff --git a/lib/openzeppelin-contracts/contracts/mocks/compound/CompTimelock.sol b/lib/openzeppelin-contracts/contracts/mocks/compound/CompTimelock.sol new file mode 100644 index 0000000..49ffa4b --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/mocks/compound/CompTimelock.sol @@ -0,0 +1,174 @@ +// SPDX-License-Identifier: BSD-3-Clause +// solhint-disable private-vars-leading-underscore +/** + * Copyright 2020 Compound Labs, Inc. + * + * Redistribution and use in source and binary forms, with or without modification, are permitted provided that the + * following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, this list of conditions and the following + * disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the + * following disclaimer in the documentation and/or other materials provided with the distribution. + * + * 3. Neither the name of the copyright holder nor the names of its contributors may be used to endorse or promote + * products derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, + * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE + * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR + * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, + * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +pragma solidity ^0.8.0; + +contract CompTimelock { + event NewAdmin(address indexed newAdmin); + event NewPendingAdmin(address indexed newPendingAdmin); + event NewDelay(uint256 indexed newDelay); + event CancelTransaction( + bytes32 indexed txHash, + address indexed target, + uint256 value, + string signature, + bytes data, + uint256 eta + ); + event ExecuteTransaction( + bytes32 indexed txHash, + address indexed target, + uint256 value, + string signature, + bytes data, + uint256 eta + ); + event QueueTransaction( + bytes32 indexed txHash, + address indexed target, + uint256 value, + string signature, + bytes data, + uint256 eta + ); + + uint256 public constant GRACE_PERIOD = 14 days; + uint256 public constant MINIMUM_DELAY = 2 days; + uint256 public constant MAXIMUM_DELAY = 30 days; + + address public admin; + address public pendingAdmin; + uint256 public delay; + + mapping(bytes32 => bool) public queuedTransactions; + + constructor(address admin_, uint256 delay_) { + require(delay_ >= MINIMUM_DELAY, "Timelock::constructor: Delay must exceed minimum delay."); + require(delay_ <= MAXIMUM_DELAY, "Timelock::setDelay: Delay must not exceed maximum delay."); + + admin = admin_; + delay = delay_; + } + + receive() external payable {} + + function setDelay(uint256 delay_) public { + require(msg.sender == address(this), "Timelock::setDelay: Call must come from Timelock."); + require(delay_ >= MINIMUM_DELAY, "Timelock::setDelay: Delay must exceed minimum delay."); + require(delay_ <= MAXIMUM_DELAY, "Timelock::setDelay: Delay must not exceed maximum delay."); + delay = delay_; + + emit NewDelay(delay); + } + + function acceptAdmin() public { + require(msg.sender == pendingAdmin, "Timelock::acceptAdmin: Call must come from pendingAdmin."); + admin = msg.sender; + pendingAdmin = address(0); + + emit NewAdmin(admin); + } + + function setPendingAdmin(address pendingAdmin_) public { + require(msg.sender == address(this), "Timelock::setPendingAdmin: Call must come from Timelock."); + pendingAdmin = pendingAdmin_; + + emit NewPendingAdmin(pendingAdmin); + } + + function queueTransaction( + address target, + uint256 value, + string memory signature, + bytes memory data, + uint256 eta + ) public returns (bytes32) { + require(msg.sender == admin, "Timelock::queueTransaction: Call must come from admin."); + require( + eta >= getBlockTimestamp() + delay, + "Timelock::queueTransaction: Estimated execution block must satisfy delay." + ); + + bytes32 txHash = keccak256(abi.encode(target, value, signature, data, eta)); + queuedTransactions[txHash] = true; + + emit QueueTransaction(txHash, target, value, signature, data, eta); + return txHash; + } + + function cancelTransaction( + address target, + uint256 value, + string memory signature, + bytes memory data, + uint256 eta + ) public { + require(msg.sender == admin, "Timelock::cancelTransaction: Call must come from admin."); + + bytes32 txHash = keccak256(abi.encode(target, value, signature, data, eta)); + queuedTransactions[txHash] = false; + + emit CancelTransaction(txHash, target, value, signature, data, eta); + } + + function executeTransaction( + address target, + uint256 value, + string memory signature, + bytes memory data, + uint256 eta + ) public payable returns (bytes memory) { + require(msg.sender == admin, "Timelock::executeTransaction: Call must come from admin."); + + bytes32 txHash = keccak256(abi.encode(target, value, signature, data, eta)); + require(queuedTransactions[txHash], "Timelock::executeTransaction: Transaction hasn't been queued."); + require(getBlockTimestamp() >= eta, "Timelock::executeTransaction: Transaction hasn't surpassed time lock."); + require(getBlockTimestamp() <= eta + GRACE_PERIOD, "Timelock::executeTransaction: Transaction is stale."); + + queuedTransactions[txHash] = false; + + bytes memory callData; + + if (bytes(signature).length == 0) { + callData = data; + } else { + callData = abi.encodePacked(bytes4(keccak256(bytes(signature))), data); + } + + // solium-disable-next-line security/no-call-value + (bool success, bytes memory returnData) = target.call{value: value}(callData); + require(success, "Timelock::executeTransaction: Transaction execution reverted."); + + emit ExecuteTransaction(txHash, target, value, signature, data, eta); + + return returnData; + } + + function getBlockTimestamp() internal view returns (uint256) { + // solium-disable-next-line security/no-block-members + return block.timestamp; + } +} diff --git a/lib/openzeppelin-contracts/contracts/mocks/crosschain/bridges.sol b/lib/openzeppelin-contracts/contracts/mocks/crosschain/bridges.sol new file mode 100644 index 0000000..41baffe --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/mocks/crosschain/bridges.sol @@ -0,0 +1,94 @@ +// SPDX-License-Identifier: MIT + +pragma solidity ^0.8.0; + +import "../../utils/Address.sol"; +import "../../vendor/polygon/IFxMessageProcessor.sol"; + +abstract contract BaseRelayMock { + // needed to parse custom errors + error NotCrossChainCall(); + error InvalidCrossChainSender(address sender, address expected); + + address internal _currentSender; + + function relayAs(address target, bytes calldata data, address sender) external virtual { + address previousSender = _currentSender; + + _currentSender = sender; + + (bool success, bytes memory returndata) = target.call(data); + Address.verifyCallResultFromTarget(target, success, returndata, "low-level call reverted"); + + _currentSender = previousSender; + } +} + +/** + * AMB + */ +contract BridgeAMBMock is BaseRelayMock { + function messageSender() public view returns (address) { + return _currentSender; + } +} + +/** + * Arbitrum + */ +contract BridgeArbitrumL1Mock is BaseRelayMock { + /// @custom:oz-upgrades-unsafe-allow state-variable-immutable state-variable-assignment + address public immutable inbox = address(new BridgeArbitrumL1Inbox()); + /// @custom:oz-upgrades-unsafe-allow state-variable-immutable state-variable-assignment + address public immutable outbox = address(new BridgeArbitrumL1Outbox()); + + function activeOutbox() public view returns (address) { + return outbox; + } + + function currentSender() public view returns (address) { + return _currentSender; + } +} + +contract BridgeArbitrumL1Inbox { + /// @custom:oz-upgrades-unsafe-allow state-variable-immutable state-variable-assignment + address public immutable bridge = msg.sender; +} + +contract BridgeArbitrumL1Outbox { + /// @custom:oz-upgrades-unsafe-allow state-variable-immutable state-variable-assignment + address public immutable bridge = msg.sender; + + function l2ToL1Sender() public view returns (address) { + return BridgeArbitrumL1Mock(bridge).currentSender(); + } +} + +contract BridgeArbitrumL2Mock is BaseRelayMock { + function wasMyCallersAddressAliased() public view returns (bool) { + return _currentSender != address(0); + } + + function myCallersAddressWithoutAliasing() public view returns (address) { + return _currentSender; + } +} + +/** + * Optimism + */ +contract BridgeOptimismMock is BaseRelayMock { + function xDomainMessageSender() public view returns (address) { + return _currentSender; + } +} + +/** + * Polygon + */ +contract BridgePolygonChildMock is BaseRelayMock { + function relayAs(address target, bytes calldata data, address sender) external override { + IFxMessageProcessor(target).processMessageFromRoot(0, sender, data); + } +} diff --git a/lib/openzeppelin-contracts/contracts/mocks/crosschain/receivers.sol b/lib/openzeppelin-contracts/contracts/mocks/crosschain/receivers.sol new file mode 100644 index 0000000..601a2ac --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/mocks/crosschain/receivers.sol @@ -0,0 +1,54 @@ +// SPDX-License-Identifier: MIT + +pragma solidity ^0.8.4; + +import "../../access/Ownable.sol"; +import "../../crosschain/amb/CrossChainEnabledAMB.sol"; +import "../../crosschain/arbitrum/CrossChainEnabledArbitrumL1.sol"; +import "../../crosschain/arbitrum/CrossChainEnabledArbitrumL2.sol"; +import "../../crosschain/optimism/CrossChainEnabledOptimism.sol"; +import "../../crosschain/polygon/CrossChainEnabledPolygonChild.sol"; + +abstract contract Receiver is CrossChainEnabled { + // we don't use Ownable because it messes up testing for the upgradeable contracts + /// @custom:oz-upgrades-unsafe-allow state-variable-immutable state-variable-assignment + address public immutable owner = msg.sender; + + function crossChainRestricted() external onlyCrossChain {} + + function crossChainOwnerRestricted() external onlyCrossChainSender(owner) {} +} + +/** + * AMB + */ +contract CrossChainEnabledAMBMock is Receiver, CrossChainEnabledAMB { + /// @custom:oz-upgrades-unsafe-allow constructor + constructor(address bridge) CrossChainEnabledAMB(bridge) {} +} + +/** + * Arbitrum + */ +contract CrossChainEnabledArbitrumL1Mock is Receiver, CrossChainEnabledArbitrumL1 { + /// @custom:oz-upgrades-unsafe-allow constructor + constructor(address bridge) CrossChainEnabledArbitrumL1(bridge) {} +} + +contract CrossChainEnabledArbitrumL2Mock is Receiver, CrossChainEnabledArbitrumL2 {} + +/** + * Optimism + */ +contract CrossChainEnabledOptimismMock is Receiver, CrossChainEnabledOptimism { + /// @custom:oz-upgrades-unsafe-allow constructor + constructor(address bridge) CrossChainEnabledOptimism(bridge) {} +} + +/** + * Polygon + */ +contract CrossChainEnabledPolygonChildMock is Receiver, CrossChainEnabledPolygonChild { + /// @custom:oz-upgrades-unsafe-allow constructor + constructor(address bridge) CrossChainEnabledPolygonChild(bridge) {} +} diff --git a/lib/openzeppelin-contracts/contracts/mocks/governance/GovernorCompMock.sol b/lib/openzeppelin-contracts/contracts/mocks/governance/GovernorCompMock.sol new file mode 100644 index 0000000..cc368c4 --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/mocks/governance/GovernorCompMock.sol @@ -0,0 +1,20 @@ +// SPDX-License-Identifier: MIT + +pragma solidity ^0.8.0; + +import "../../governance/extensions/GovernorCountingSimple.sol"; +import "../../governance/extensions/GovernorVotesComp.sol"; + +abstract contract GovernorCompMock is GovernorVotesComp, GovernorCountingSimple { + function quorum(uint256) public pure override returns (uint256) { + return 0; + } + + function votingDelay() public pure override returns (uint256) { + return 4; + } + + function votingPeriod() public pure override returns (uint256) { + return 16; + } +} diff --git a/lib/openzeppelin-contracts/contracts/mocks/governance/GovernorCompatibilityBravoMock.sol b/lib/openzeppelin-contracts/contracts/mocks/governance/GovernorCompatibilityBravoMock.sol new file mode 100644 index 0000000..4356bce --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/mocks/governance/GovernorCompatibilityBravoMock.sol @@ -0,0 +1,91 @@ +// SPDX-License-Identifier: MIT + +pragma solidity ^0.8.0; + +import "../../governance/compatibility/GovernorCompatibilityBravo.sol"; +import "../../governance/extensions/GovernorTimelockCompound.sol"; +import "../../governance/extensions/GovernorSettings.sol"; +import "../../governance/extensions/GovernorVotesComp.sol"; + +abstract contract GovernorCompatibilityBravoMock is + GovernorCompatibilityBravo, + GovernorSettings, + GovernorTimelockCompound, + GovernorVotesComp +{ + function quorum(uint256) public pure override returns (uint256) { + return 0; + } + + function supportsInterface( + bytes4 interfaceId + ) public view override(IERC165, Governor, GovernorTimelockCompound) returns (bool) { + return super.supportsInterface(interfaceId); + } + + function state( + uint256 proposalId + ) public view override(IGovernor, Governor, GovernorTimelockCompound) returns (ProposalState) { + return super.state(proposalId); + } + + function proposalEta( + uint256 proposalId + ) public view override(IGovernorTimelock, GovernorTimelockCompound) returns (uint256) { + return super.proposalEta(proposalId); + } + + function proposalThreshold() public view override(Governor, GovernorSettings) returns (uint256) { + return super.proposalThreshold(); + } + + function propose( + address[] memory targets, + uint256[] memory values, + bytes[] memory calldatas, + string memory description + ) public override(IGovernor, Governor, GovernorCompatibilityBravo) returns (uint256) { + return super.propose(targets, values, calldatas, description); + } + + function queue( + address[] memory targets, + uint256[] memory values, + bytes[] memory calldatas, + bytes32 salt + ) public override(IGovernorTimelock, GovernorTimelockCompound) returns (uint256) { + return super.queue(targets, values, calldatas, salt); + } + + function execute( + address[] memory targets, + uint256[] memory values, + bytes[] memory calldatas, + bytes32 salt + ) public payable override(IGovernor, Governor) returns (uint256) { + return super.execute(targets, values, calldatas, salt); + } + + function _execute( + uint256 proposalId, + address[] memory targets, + uint256[] memory values, + bytes[] memory calldatas, + bytes32 descriptionHash + ) internal override(Governor, GovernorTimelockCompound) { + super._execute(proposalId, targets, values, calldatas, descriptionHash); + } + + function _cancel( + address[] memory targets, + uint256[] memory values, + bytes[] memory calldatas, + bytes32 salt + ) internal override(Governor, GovernorTimelockCompound) returns (uint256 proposalId) { + return super._cancel(targets, values, calldatas, salt); + } + + function _executor() internal view override(Governor, GovernorTimelockCompound) returns (address) { + return super._executor(); + } +} diff --git a/lib/openzeppelin-contracts/contracts/mocks/governance/GovernorMock.sol b/lib/openzeppelin-contracts/contracts/mocks/governance/GovernorMock.sol new file mode 100644 index 0000000..8a1db47 --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/mocks/governance/GovernorMock.sol @@ -0,0 +1,28 @@ +// SPDX-License-Identifier: MIT + +pragma solidity ^0.8.0; + +import "../../governance/extensions/GovernorProposalThreshold.sol"; +import "../../governance/extensions/GovernorSettings.sol"; +import "../../governance/extensions/GovernorCountingSimple.sol"; +import "../../governance/extensions/GovernorVotesQuorumFraction.sol"; + +abstract contract GovernorMock is + GovernorProposalThreshold, + GovernorSettings, + GovernorVotesQuorumFraction, + GovernorCountingSimple +{ + function proposalThreshold() public view override(Governor, GovernorSettings) returns (uint256) { + return super.proposalThreshold(); + } + + function propose( + address[] memory targets, + uint256[] memory values, + bytes[] memory calldatas, + string memory description + ) public override(Governor, GovernorProposalThreshold) returns (uint256) { + return super.propose(targets, values, calldatas, description); + } +} diff --git a/lib/openzeppelin-contracts/contracts/mocks/governance/GovernorPreventLateQuorumMock.sol b/lib/openzeppelin-contracts/contracts/mocks/governance/GovernorPreventLateQuorumMock.sol new file mode 100644 index 0000000..79d8948 --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/mocks/governance/GovernorPreventLateQuorumMock.sol @@ -0,0 +1,45 @@ +// SPDX-License-Identifier: MIT + +pragma solidity ^0.8.0; + +import "../../governance/extensions/GovernorPreventLateQuorum.sol"; +import "../../governance/extensions/GovernorSettings.sol"; +import "../../governance/extensions/GovernorCountingSimple.sol"; +import "../../governance/extensions/GovernorVotes.sol"; + +abstract contract GovernorPreventLateQuorumMock is + GovernorSettings, + GovernorVotes, + GovernorCountingSimple, + GovernorPreventLateQuorum +{ + uint256 private _quorum; + + constructor(uint256 quorum_) { + _quorum = quorum_; + } + + function quorum(uint256) public view override returns (uint256) { + return _quorum; + } + + function proposalDeadline( + uint256 proposalId + ) public view override(Governor, GovernorPreventLateQuorum) returns (uint256) { + return super.proposalDeadline(proposalId); + } + + function proposalThreshold() public view override(Governor, GovernorSettings) returns (uint256) { + return super.proposalThreshold(); + } + + function _castVote( + uint256 proposalId, + address account, + uint8 support, + string memory reason, + bytes memory params + ) internal override(Governor, GovernorPreventLateQuorum) returns (uint256) { + return super._castVote(proposalId, account, support, reason, params); + } +} diff --git a/lib/openzeppelin-contracts/contracts/mocks/governance/GovernorTimelockCompoundMock.sol b/lib/openzeppelin-contracts/contracts/mocks/governance/GovernorTimelockCompoundMock.sol new file mode 100644 index 0000000..b374628 --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/mocks/governance/GovernorTimelockCompoundMock.sol @@ -0,0 +1,60 @@ +// SPDX-License-Identifier: MIT + +pragma solidity ^0.8.0; + +import "../../governance/extensions/GovernorTimelockCompound.sol"; +import "../../governance/extensions/GovernorSettings.sol"; +import "../../governance/extensions/GovernorCountingSimple.sol"; +import "../../governance/extensions/GovernorVotesQuorumFraction.sol"; + +abstract contract GovernorTimelockCompoundMock is + GovernorSettings, + GovernorTimelockCompound, + GovernorVotesQuorumFraction, + GovernorCountingSimple +{ + function supportsInterface( + bytes4 interfaceId + ) public view override(Governor, GovernorTimelockCompound) returns (bool) { + return super.supportsInterface(interfaceId); + } + + function quorum( + uint256 blockNumber + ) public view override(IGovernor, GovernorVotesQuorumFraction) returns (uint256) { + return super.quorum(blockNumber); + } + + function state( + uint256 proposalId + ) public view override(Governor, GovernorTimelockCompound) returns (ProposalState) { + return super.state(proposalId); + } + + function proposalThreshold() public view override(Governor, GovernorSettings) returns (uint256) { + return super.proposalThreshold(); + } + + function _execute( + uint256 proposalId, + address[] memory targets, + uint256[] memory values, + bytes[] memory calldatas, + bytes32 descriptionHash + ) internal override(Governor, GovernorTimelockCompound) { + super._execute(proposalId, targets, values, calldatas, descriptionHash); + } + + function _cancel( + address[] memory targets, + uint256[] memory values, + bytes[] memory calldatas, + bytes32 salt + ) internal override(Governor, GovernorTimelockCompound) returns (uint256 proposalId) { + return super._cancel(targets, values, calldatas, salt); + } + + function _executor() internal view override(Governor, GovernorTimelockCompound) returns (address) { + return super._executor(); + } +} diff --git a/lib/openzeppelin-contracts/contracts/mocks/governance/GovernorTimelockControlMock.sol b/lib/openzeppelin-contracts/contracts/mocks/governance/GovernorTimelockControlMock.sol new file mode 100644 index 0000000..0630914 --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/mocks/governance/GovernorTimelockControlMock.sol @@ -0,0 +1,60 @@ +// SPDX-License-Identifier: MIT + +pragma solidity ^0.8.0; + +import "../../governance/extensions/GovernorTimelockControl.sol"; +import "../../governance/extensions/GovernorSettings.sol"; +import "../../governance/extensions/GovernorCountingSimple.sol"; +import "../../governance/extensions/GovernorVotesQuorumFraction.sol"; + +abstract contract GovernorTimelockControlMock is + GovernorSettings, + GovernorTimelockControl, + GovernorVotesQuorumFraction, + GovernorCountingSimple +{ + function supportsInterface( + bytes4 interfaceId + ) public view override(Governor, GovernorTimelockControl) returns (bool) { + return super.supportsInterface(interfaceId); + } + + function quorum( + uint256 blockNumber + ) public view override(IGovernor, GovernorVotesQuorumFraction) returns (uint256) { + return super.quorum(blockNumber); + } + + function state(uint256 proposalId) public view override(Governor, GovernorTimelockControl) returns (ProposalState) { + return super.state(proposalId); + } + + function proposalThreshold() public view override(Governor, GovernorSettings) returns (uint256) { + return super.proposalThreshold(); + } + + function _execute( + uint256 proposalId, + address[] memory targets, + uint256[] memory values, + bytes[] memory calldatas, + bytes32 descriptionHash + ) internal override(Governor, GovernorTimelockControl) { + super._execute(proposalId, targets, values, calldatas, descriptionHash); + } + + function _cancel( + address[] memory targets, + uint256[] memory values, + bytes[] memory calldatas, + bytes32 descriptionHash + ) internal override(Governor, GovernorTimelockControl) returns (uint256 proposalId) { + return super._cancel(targets, values, calldatas, descriptionHash); + } + + function _executor() internal view override(Governor, GovernorTimelockControl) returns (address) { + return super._executor(); + } + + function nonGovernanceFunction() external {} +} diff --git a/lib/openzeppelin-contracts/contracts/mocks/governance/GovernorVoteMock.sol b/lib/openzeppelin-contracts/contracts/mocks/governance/GovernorVoteMock.sol new file mode 100644 index 0000000..9b533bd --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/mocks/governance/GovernorVoteMock.sol @@ -0,0 +1,20 @@ +// SPDX-License-Identifier: MIT + +pragma solidity ^0.8.0; + +import "../../governance/extensions/GovernorCountingSimple.sol"; +import "../../governance/extensions/GovernorVotes.sol"; + +abstract contract GovernorVoteMocks is GovernorVotes, GovernorCountingSimple { + function quorum(uint256) public pure override returns (uint256) { + return 0; + } + + function votingDelay() public pure override returns (uint256) { + return 4; + } + + function votingPeriod() public pure override returns (uint256) { + return 16; + } +} diff --git a/lib/openzeppelin-contracts/contracts/mocks/governance/GovernorWithParamsMock.sol b/lib/openzeppelin-contracts/contracts/mocks/governance/GovernorWithParamsMock.sol new file mode 100644 index 0000000..361c287 --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/mocks/governance/GovernorWithParamsMock.sol @@ -0,0 +1,50 @@ +// SPDX-License-Identifier: MIT + +pragma solidity ^0.8.0; + +import "../../governance/extensions/GovernorCountingSimple.sol"; +import "../../governance/extensions/GovernorVotes.sol"; + +abstract contract GovernorWithParamsMock is GovernorVotes, GovernorCountingSimple { + event CountParams(uint256 uintParam, string strParam); + + function quorum(uint256) public pure override returns (uint256) { + return 0; + } + + function votingDelay() public pure override returns (uint256) { + return 4; + } + + function votingPeriod() public pure override returns (uint256) { + return 16; + } + + function _getVotes( + address account, + uint256 blockNumber, + bytes memory params + ) internal view override(Governor, GovernorVotes) returns (uint256) { + uint256 reduction = 0; + // If the user provides parameters, we reduce the voting weight by the amount of the integer param + if (params.length > 0) { + (reduction, ) = abi.decode(params, (uint256, string)); + } + // reverts on overflow + return super._getVotes(account, blockNumber, params) - reduction; + } + + function _countVote( + uint256 proposalId, + address account, + uint8 support, + uint256 weight, + bytes memory params + ) internal override(Governor, GovernorCountingSimple) { + if (params.length > 0) { + (uint256 _uintParam, string memory _strParam) = abi.decode(params, (uint256, string)); + emit CountParams(_uintParam, _strParam); + } + return super._countVote(proposalId, account, support, weight, params); + } +} diff --git a/lib/openzeppelin-contracts/contracts/mocks/proxy/BadBeacon.sol b/lib/openzeppelin-contracts/contracts/mocks/proxy/BadBeacon.sol new file mode 100644 index 0000000..bedcfed --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/mocks/proxy/BadBeacon.sol @@ -0,0 +1,11 @@ +// SPDX-License-Identifier: MIT + +pragma solidity ^0.8.0; + +contract BadBeaconNoImpl {} + +contract BadBeaconNotContract { + function implementation() external pure returns (address) { + return address(0x1); + } +} diff --git a/lib/openzeppelin-contracts/contracts/mocks/proxy/ClashingImplementation.sol b/lib/openzeppelin-contracts/contracts/mocks/proxy/ClashingImplementation.sol new file mode 100644 index 0000000..5c272a8 --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/mocks/proxy/ClashingImplementation.sol @@ -0,0 +1,17 @@ +// SPDX-License-Identifier: MIT + +pragma solidity ^0.8.0; + +/** + * @dev Implementation contract with a payable admin() function made to clash with TransparentUpgradeableProxy's to + * test correct functioning of the Transparent Proxy feature. + */ +contract ClashingImplementation { + function admin() external payable returns (address) { + return 0x0000000000000000000000000000000011111142; + } + + function delegatedFunction() external pure returns (bool) { + return true; + } +} diff --git a/lib/openzeppelin-contracts/contracts/mocks/proxy/UUPSLegacy.sol b/lib/openzeppelin-contracts/contracts/mocks/proxy/UUPSLegacy.sol new file mode 100644 index 0000000..7a30028 --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/mocks/proxy/UUPSLegacy.sol @@ -0,0 +1,54 @@ +// SPDX-License-Identifier: MIT + +pragma solidity ^0.8.0; + +import "./UUPSUpgradeableMock.sol"; + +// This contract implements the pre-4.5 UUPS upgrade function with a rollback test. +// It's used to test that newer UUPS contracts are considered valid upgrades by older UUPS contracts. +contract UUPSUpgradeableLegacyMock is UUPSUpgradeableMock { + // Inlined from ERC1967Upgrade + bytes32 private constant _ROLLBACK_SLOT = 0x4910fdfa16fed3260ed0e7147f7cc6da11a60208b5b9406d12a635614ffd9143; + + // ERC1967Upgrade._setImplementation is private so we reproduce it here. + // An extra underscore prevents a name clash error. + function __setImplementation(address newImplementation) private { + require(Address.isContract(newImplementation), "ERC1967: new implementation is not a contract"); + StorageSlot.getAddressSlot(_IMPLEMENTATION_SLOT).value = newImplementation; + } + + function _upgradeToAndCallSecureLegacyV1(address newImplementation, bytes memory data, bool forceCall) internal { + address oldImplementation = _getImplementation(); + + // Initial upgrade and setup call + __setImplementation(newImplementation); + if (data.length > 0 || forceCall) { + Address.functionDelegateCall(newImplementation, data); + } + + // Perform rollback test if not already in progress + StorageSlot.BooleanSlot storage rollbackTesting = StorageSlot.getBooleanSlot(_ROLLBACK_SLOT); + if (!rollbackTesting.value) { + // Trigger rollback using upgradeTo from the new implementation + rollbackTesting.value = true; + Address.functionDelegateCall( + newImplementation, + abi.encodeWithSignature("upgradeTo(address)", oldImplementation) + ); + rollbackTesting.value = false; + // Check rollback was effective + require(oldImplementation == _getImplementation(), "ERC1967Upgrade: upgrade breaks further upgrades"); + // Finally reset to the new implementation and log the upgrade + _upgradeTo(newImplementation); + } + } + + // hooking into the old mechanism + function upgradeTo(address newImplementation) external override { + _upgradeToAndCallSecureLegacyV1(newImplementation, bytes(""), false); + } + + function upgradeToAndCall(address newImplementation, bytes memory data) external payable override { + _upgradeToAndCallSecureLegacyV1(newImplementation, data, false); + } +} diff --git a/lib/openzeppelin-contracts/contracts/mocks/proxy/UUPSUpgradeableMock.sol b/lib/openzeppelin-contracts/contracts/mocks/proxy/UUPSUpgradeableMock.sol new file mode 100644 index 0000000..deb20a0 --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/mocks/proxy/UUPSUpgradeableMock.sol @@ -0,0 +1,33 @@ +// SPDX-License-Identifier: MIT + +pragma solidity ^0.8.0; + +import "../../proxy/utils/UUPSUpgradeable.sol"; +import "../../utils/Counters.sol"; + +contract NonUpgradeableMock { + Counters.Counter internal _counter; + + function current() external view returns (uint256) { + return Counters.current(_counter); + } + + function increment() external { + return Counters.increment(_counter); + } +} + +contract UUPSUpgradeableMock is NonUpgradeableMock, UUPSUpgradeable { + // Not having any checks in this function is dangerous! Do not do this outside tests! + function _authorizeUpgrade(address) internal override {} +} + +contract UUPSUpgradeableUnsafeMock is UUPSUpgradeableMock { + function upgradeTo(address newImplementation) external override { + ERC1967Upgrade._upgradeToAndCall(newImplementation, bytes(""), false); + } + + function upgradeToAndCall(address newImplementation, bytes memory data) external payable override { + ERC1967Upgrade._upgradeToAndCall(newImplementation, data, false); + } +} diff --git a/lib/openzeppelin-contracts/contracts/mocks/token/ERC1155ReceiverMock.sol b/lib/openzeppelin-contracts/contracts/mocks/token/ERC1155ReceiverMock.sol new file mode 100644 index 0000000..317d724 --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/mocks/token/ERC1155ReceiverMock.sol @@ -0,0 +1,47 @@ +// SPDX-License-Identifier: MIT + +pragma solidity ^0.8.0; + +import "../../token/ERC1155/IERC1155Receiver.sol"; +import "../../utils/introspection/ERC165.sol"; + +contract ERC1155ReceiverMock is ERC165, IERC1155Receiver { + bytes4 private _recRetval; + bool private _recReverts; + bytes4 private _batRetval; + bool private _batReverts; + + event Received(address operator, address from, uint256 id, uint256 value, bytes data, uint256 gas); + event BatchReceived(address operator, address from, uint256[] ids, uint256[] values, bytes data, uint256 gas); + + constructor(bytes4 recRetval, bool recReverts, bytes4 batRetval, bool batReverts) { + _recRetval = recRetval; + _recReverts = recReverts; + _batRetval = batRetval; + _batReverts = batReverts; + } + + function onERC1155Received( + address operator, + address from, + uint256 id, + uint256 value, + bytes calldata data + ) external override returns (bytes4) { + require(!_recReverts, "ERC1155ReceiverMock: reverting on receive"); + emit Received(operator, from, id, value, data, gasleft()); + return _recRetval; + } + + function onERC1155BatchReceived( + address operator, + address from, + uint256[] calldata ids, + uint256[] calldata values, + bytes calldata data + ) external override returns (bytes4) { + require(!_batReverts, "ERC1155ReceiverMock: reverting on batch receive"); + emit BatchReceived(operator, from, ids, values, data, gasleft()); + return _batRetval; + } +} diff --git a/lib/openzeppelin-contracts/contracts/mocks/token/ERC20DecimalsMock.sol b/lib/openzeppelin-contracts/contracts/mocks/token/ERC20DecimalsMock.sol new file mode 100644 index 0000000..32f2874 --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/mocks/token/ERC20DecimalsMock.sol @@ -0,0 +1,17 @@ +// SPDX-License-Identifier: MIT + +pragma solidity ^0.8.0; + +import "../../token/ERC20/ERC20.sol"; + +abstract contract ERC20DecimalsMock is ERC20 { + uint8 private immutable _decimals; + + constructor(uint8 decimals_) { + _decimals = decimals_; + } + + function decimals() public view override returns (uint8) { + return _decimals; + } +} diff --git a/lib/openzeppelin-contracts/contracts/mocks/token/ERC20FlashMintMock.sol b/lib/openzeppelin-contracts/contracts/mocks/token/ERC20FlashMintMock.sol new file mode 100644 index 0000000..b4de7b7 --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/mocks/token/ERC20FlashMintMock.sol @@ -0,0 +1,26 @@ +// SPDX-License-Identifier: MIT + +pragma solidity ^0.8.0; + +import "../../token/ERC20/extensions/ERC20FlashMint.sol"; + +abstract contract ERC20FlashMintMock is ERC20FlashMint { + uint256 _flashFeeAmount; + address _flashFeeReceiverAddress; + + function setFlashFee(uint256 amount) public { + _flashFeeAmount = amount; + } + + function _flashFee(address, uint256) internal view override returns (uint256) { + return _flashFeeAmount; + } + + function setFlashFeeReceiver(address receiver) public { + _flashFeeReceiverAddress = receiver; + } + + function _flashFeeReceiver() internal view override returns (address) { + return _flashFeeReceiverAddress; + } +} diff --git a/lib/openzeppelin-contracts/contracts/mocks/token/ERC20MulticallMock.sol b/lib/openzeppelin-contracts/contracts/mocks/token/ERC20MulticallMock.sol new file mode 100644 index 0000000..145e97a --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/mocks/token/ERC20MulticallMock.sol @@ -0,0 +1,8 @@ +// SPDX-License-Identifier: MIT + +pragma solidity ^0.8.0; + +import "../../token/ERC20/ERC20.sol"; +import "../../utils/Multicall.sol"; + +abstract contract ERC20MulticallMock is ERC20, Multicall {} diff --git a/lib/openzeppelin-contracts/contracts/mocks/token/ERC20NoReturnMock.sol b/lib/openzeppelin-contracts/contracts/mocks/token/ERC20NoReturnMock.sol new file mode 100644 index 0000000..023dab2 --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/mocks/token/ERC20NoReturnMock.sol @@ -0,0 +1,21 @@ +// SPDX-License-Identifier: MIT + +pragma solidity ^0.8.0; + +contract ERC20NoReturnMock { + mapping(address => uint256) private _allowances; + + function transfer(address, uint256) public {} + + function transferFrom(address, address, uint256) public {} + + function approve(address, uint256) public {} + + function setAllowance(address account, uint256 allowance_) public { + _allowances[account] = allowance_; + } + + function allowance(address owner, address) public view returns (uint256) { + return _allowances[owner]; + } +} diff --git a/lib/openzeppelin-contracts/contracts/mocks/token/ERC20PermitNoRevertMock.sol b/lib/openzeppelin-contracts/contracts/mocks/token/ERC20PermitNoRevertMock.sol new file mode 100644 index 0000000..2b6e250 --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/mocks/token/ERC20PermitNoRevertMock.sol @@ -0,0 +1,38 @@ +// SPDX-License-Identifier: MIT + +pragma solidity ^0.8.0; + +import "../../token/ERC20/ERC20.sol"; +import "../../token/ERC20/extensions/draft-ERC20Permit.sol"; + +contract ERC20PermitNoRevertMock is ERC20, ERC20Permit { + constructor() ERC20("ERC20PermitNoRevertMock", "ERC20PermitNoRevertMock") ERC20Permit("ERC20PermitNoRevertMock") {} + + function permitThatMayRevert( + address owner, + address spender, + uint256 value, + uint256 deadline, + uint8 v, + bytes32 r, + bytes32 s + ) public virtual { + super.permit(owner, spender, value, deadline, v, r, s); + } + + function permit( + address owner, + address spender, + uint256 value, + uint256 deadline, + uint8 v, + bytes32 r, + bytes32 s + ) public virtual override { + try this.permitThatMayRevert(owner, spender, value, deadline, v, r, s) { + // do nothing + } catch { + // do nothing + } + } +} diff --git a/lib/openzeppelin-contracts/contracts/mocks/token/ERC20ReturnFalseMock copy.sol b/lib/openzeppelin-contracts/contracts/mocks/token/ERC20ReturnFalseMock copy.sol new file mode 100644 index 0000000..3f8f640 --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/mocks/token/ERC20ReturnFalseMock copy.sol @@ -0,0 +1,27 @@ +// SPDX-License-Identifier: MIT + +pragma solidity ^0.8.0; + +contract ERC20ReturnFalseMock { + mapping(address => uint256) private _allowances; + + function transfer(address, uint256) public pure returns (bool) { + return false; + } + + function transferFrom(address, address, uint256) public pure returns (bool) { + return false; + } + + function approve(address, uint256) public pure returns (bool) { + return false; + } + + function setAllowance(address account, uint256 allowance_) public { + _allowances[account] = allowance_; + } + + function allowance(address owner, address) public view returns (uint256) { + return _allowances[owner]; + } +} diff --git a/lib/openzeppelin-contracts/contracts/mocks/token/ERC20ReturnTrueMock.sol b/lib/openzeppelin-contracts/contracts/mocks/token/ERC20ReturnTrueMock.sol new file mode 100644 index 0000000..8953aad --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/mocks/token/ERC20ReturnTrueMock.sol @@ -0,0 +1,27 @@ +// SPDX-License-Identifier: MIT + +pragma solidity ^0.8.0; + +contract ERC20ReturnTrueMock { + mapping(address => uint256) private _allowances; + + function transfer(address, uint256) public pure returns (bool) { + return true; + } + + function transferFrom(address, address, uint256) public pure returns (bool) { + return true; + } + + function approve(address, uint256) public pure returns (bool) { + return true; + } + + function setAllowance(address account, uint256 allowance_) public { + _allowances[account] = allowance_; + } + + function allowance(address owner, address) public view returns (uint256) { + return _allowances[owner]; + } +} diff --git a/lib/openzeppelin-contracts/contracts/mocks/token/ERC4626DecimalsMock.sol b/lib/openzeppelin-contracts/contracts/mocks/token/ERC4626DecimalsMock.sol new file mode 100644 index 0000000..9cce513 --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/mocks/token/ERC4626DecimalsMock.sol @@ -0,0 +1,33 @@ +// SPDX-License-Identifier: MIT + +pragma solidity ^0.8.0; + +import "../../token/ERC20/extensions/ERC4626.sol"; + +abstract contract ERC4626DecimalsMock is ERC4626 { + using Math for uint256; + + uint8 private immutable _decimals; + + constructor(uint8 decimals_) { + _decimals = decimals_; + } + + function decimals() public view virtual override returns (uint8) { + return _decimals; + } + + function _initialConvertToShares( + uint256 assets, + Math.Rounding rounding + ) internal view virtual override returns (uint256 shares) { + return assets.mulDiv(10 ** decimals(), 10 ** super.decimals(), rounding); + } + + function _initialConvertToAssets( + uint256 shares, + Math.Rounding rounding + ) internal view virtual override returns (uint256 assets) { + return shares.mulDiv(10 ** super.decimals(), 10 ** decimals(), rounding); + } +} diff --git a/lib/openzeppelin-contracts/contracts/mocks/token/ERC721ConsecutiveEnumerableMock.sol b/lib/openzeppelin-contracts/contracts/mocks/token/ERC721ConsecutiveEnumerableMock.sol new file mode 100644 index 0000000..55c40ac --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/mocks/token/ERC721ConsecutiveEnumerableMock.sol @@ -0,0 +1,51 @@ +// SPDX-License-Identifier: MIT + +pragma solidity ^0.8.0; + +import "../../token/ERC721/extensions/ERC721Consecutive.sol"; +import "../../token/ERC721/extensions/ERC721Enumerable.sol"; + +contract ERC721ConsecutiveEnumerableMock is ERC721Consecutive, ERC721Enumerable { + constructor( + string memory name, + string memory symbol, + address[] memory receivers, + uint96[] memory amounts + ) ERC721(name, symbol) { + for (uint256 i = 0; i < receivers.length; ++i) { + _mintConsecutive(receivers[i], amounts[i]); + } + } + + function supportsInterface( + bytes4 interfaceId + ) public view virtual override(ERC721, ERC721Enumerable) returns (bool) { + return super.supportsInterface(interfaceId); + } + + function _ownerOf(uint256 tokenId) internal view virtual override(ERC721, ERC721Consecutive) returns (address) { + return super._ownerOf(tokenId); + } + + function _mint(address to, uint256 tokenId) internal virtual override(ERC721, ERC721Consecutive) { + super._mint(to, tokenId); + } + + function _beforeTokenTransfer( + address from, + address to, + uint256 firstTokenId, + uint256 batchSize + ) internal virtual override(ERC721, ERC721Enumerable) { + super._beforeTokenTransfer(from, to, firstTokenId, batchSize); + } + + function _afterTokenTransfer( + address from, + address to, + uint256 firstTokenId, + uint256 batchSize + ) internal virtual override(ERC721, ERC721Consecutive) { + super._afterTokenTransfer(from, to, firstTokenId, batchSize); + } +} diff --git a/lib/openzeppelin-contracts/contracts/mocks/token/ERC721ConsecutiveMock.sol b/lib/openzeppelin-contracts/contracts/mocks/token/ERC721ConsecutiveMock.sol new file mode 100644 index 0000000..427f44a --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/mocks/token/ERC721ConsecutiveMock.sol @@ -0,0 +1,61 @@ +// SPDX-License-Identifier: MIT + +pragma solidity ^0.8.0; + +import "../../token/ERC721/extensions/ERC721Consecutive.sol"; +import "../../token/ERC721/extensions/ERC721Enumerable.sol"; +import "../../token/ERC721/extensions/ERC721Pausable.sol"; +import "../../token/ERC721/extensions/draft-ERC721Votes.sol"; + +/** + * @title ERC721ConsecutiveMock + */ +contract ERC721ConsecutiveMock is ERC721Consecutive, ERC721Pausable, ERC721Votes { + constructor( + string memory name, + string memory symbol, + address[] memory delegates, + address[] memory receivers, + uint96[] memory amounts + ) ERC721(name, symbol) EIP712(name, "1") { + for (uint256 i = 0; i < delegates.length; ++i) { + _delegate(delegates[i], delegates[i]); + } + + for (uint256 i = 0; i < receivers.length; ++i) { + _mintConsecutive(receivers[i], amounts[i]); + } + } + + function _ownerOf(uint256 tokenId) internal view virtual override(ERC721, ERC721Consecutive) returns (address) { + return super._ownerOf(tokenId); + } + + function _mint(address to, uint256 tokenId) internal virtual override(ERC721, ERC721Consecutive) { + super._mint(to, tokenId); + } + + function _beforeTokenTransfer( + address from, + address to, + uint256 firstTokenId, + uint256 batchSize + ) internal virtual override(ERC721, ERC721Pausable) { + super._beforeTokenTransfer(from, to, firstTokenId, batchSize); + } + + function _afterTokenTransfer( + address from, + address to, + uint256 firstTokenId, + uint256 batchSize + ) internal virtual override(ERC721, ERC721Votes, ERC721Consecutive) { + super._afterTokenTransfer(from, to, firstTokenId, batchSize); + } +} + +contract ERC721ConsecutiveNoConstructorMintMock is ERC721Consecutive { + constructor(string memory name, string memory symbol) ERC721(name, symbol) { + _mint(msg.sender, 0); + } +} diff --git a/lib/openzeppelin-contracts/contracts/mocks/token/ERC721ReceiverMock.sol b/lib/openzeppelin-contracts/contracts/mocks/token/ERC721ReceiverMock.sol new file mode 100644 index 0000000..dd25788 --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/mocks/token/ERC721ReceiverMock.sol @@ -0,0 +1,42 @@ +// SPDX-License-Identifier: MIT + +pragma solidity ^0.8.0; + +import "../../token/ERC721/IERC721Receiver.sol"; + +contract ERC721ReceiverMock is IERC721Receiver { + enum Error { + None, + RevertWithMessage, + RevertWithoutMessage, + Panic + } + + bytes4 private immutable _retval; + Error private immutable _error; + + event Received(address operator, address from, uint256 tokenId, bytes data, uint256 gas); + + constructor(bytes4 retval, Error error) { + _retval = retval; + _error = error; + } + + function onERC721Received( + address operator, + address from, + uint256 tokenId, + bytes memory data + ) public override returns (bytes4) { + if (_error == Error.RevertWithMessage) { + revert("ERC721ReceiverMock: reverting"); + } else if (_error == Error.RevertWithoutMessage) { + revert(); + } else if (_error == Error.Panic) { + uint256 a = uint256(0) / uint256(0); + a; + } + emit Received(operator, from, tokenId, data, gasleft()); + return _retval; + } +} diff --git a/lib/openzeppelin-contracts/contracts/mocks/token/ERC721URIStorageMock.sol b/lib/openzeppelin-contracts/contracts/mocks/token/ERC721URIStorageMock.sol new file mode 100644 index 0000000..455c933 --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/mocks/token/ERC721URIStorageMock.sol @@ -0,0 +1,17 @@ +// SPDX-License-Identifier: MIT + +pragma solidity ^0.8.0; + +import "../../token/ERC721/extensions/ERC721URIStorage.sol"; + +abstract contract ERC721URIStorageMock is ERC721URIStorage { + string private _baseTokenURI; + + function _baseURI() internal view virtual override returns (string memory) { + return _baseTokenURI; + } + + function setBaseURI(string calldata newBaseTokenURI) public { + _baseTokenURI = newBaseTokenURI; + } +} diff --git a/lib/openzeppelin-contracts/contracts/mocks/token/ERC777Mock.sol b/lib/openzeppelin-contracts/contracts/mocks/token/ERC777Mock.sol new file mode 100644 index 0000000..685277e --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/mocks/token/ERC777Mock.sol @@ -0,0 +1,13 @@ +// SPDX-License-Identifier: MIT + +pragma solidity ^0.8.0; + +import "../../token/ERC777/ERC777.sol"; + +abstract contract ERC777Mock is ERC777 { + event BeforeTokenTransfer(); + + function _beforeTokenTransfer(address, address, address, uint256) internal override { + emit BeforeTokenTransfer(); + } +} diff --git a/lib/openzeppelin-contracts/contracts/mocks/token/ERC777SenderRecipientMock.sol b/lib/openzeppelin-contracts/contracts/mocks/token/ERC777SenderRecipientMock.sol new file mode 100644 index 0000000..3bec6d9 --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/mocks/token/ERC777SenderRecipientMock.sol @@ -0,0 +1,152 @@ +// SPDX-License-Identifier: MIT + +pragma solidity ^0.8.0; + +import "../../token/ERC777/IERC777.sol"; +import "../../token/ERC777/IERC777Sender.sol"; +import "../../token/ERC777/IERC777Recipient.sol"; +import "../../utils/Context.sol"; +import "../../utils/introspection/IERC1820Registry.sol"; +import "../../utils/introspection/ERC1820Implementer.sol"; + +contract ERC777SenderRecipientMock is Context, IERC777Sender, IERC777Recipient, ERC1820Implementer { + event TokensToSendCalled( + address operator, + address from, + address to, + uint256 amount, + bytes data, + bytes operatorData, + address token, + uint256 fromBalance, + uint256 toBalance + ); + + event TokensReceivedCalled( + address operator, + address from, + address to, + uint256 amount, + bytes data, + bytes operatorData, + address token, + uint256 fromBalance, + uint256 toBalance + ); + + // Emitted in ERC777Mock. Here for easier decoding + event BeforeTokenTransfer(); + + bool private _shouldRevertSend; + bool private _shouldRevertReceive; + + IERC1820Registry private _erc1820 = IERC1820Registry(0x1820a4B7618BdE71Dce8cdc73aAB6C95905faD24); + + bytes32 private constant _TOKENS_SENDER_INTERFACE_HASH = keccak256("ERC777TokensSender"); + bytes32 private constant _TOKENS_RECIPIENT_INTERFACE_HASH = keccak256("ERC777TokensRecipient"); + + function tokensToSend( + address operator, + address from, + address to, + uint256 amount, + bytes calldata userData, + bytes calldata operatorData + ) external override { + if (_shouldRevertSend) { + revert(); + } + + IERC777 token = IERC777(_msgSender()); + + uint256 fromBalance = token.balanceOf(from); + // when called due to burn, to will be the zero address, which will have a balance of 0 + uint256 toBalance = token.balanceOf(to); + + emit TokensToSendCalled( + operator, + from, + to, + amount, + userData, + operatorData, + address(token), + fromBalance, + toBalance + ); + } + + function tokensReceived( + address operator, + address from, + address to, + uint256 amount, + bytes calldata userData, + bytes calldata operatorData + ) external override { + if (_shouldRevertReceive) { + revert(); + } + + IERC777 token = IERC777(_msgSender()); + + uint256 fromBalance = token.balanceOf(from); + // when called due to burn, to will be the zero address, which will have a balance of 0 + uint256 toBalance = token.balanceOf(to); + + emit TokensReceivedCalled( + operator, + from, + to, + amount, + userData, + operatorData, + address(token), + fromBalance, + toBalance + ); + } + + function senderFor(address account) public { + _registerInterfaceForAddress(_TOKENS_SENDER_INTERFACE_HASH, account); + + address self = address(this); + if (account == self) { + registerSender(self); + } + } + + function registerSender(address sender) public { + _erc1820.setInterfaceImplementer(address(this), _TOKENS_SENDER_INTERFACE_HASH, sender); + } + + function recipientFor(address account) public { + _registerInterfaceForAddress(_TOKENS_RECIPIENT_INTERFACE_HASH, account); + + address self = address(this); + if (account == self) { + registerRecipient(self); + } + } + + function registerRecipient(address recipient) public { + _erc1820.setInterfaceImplementer(address(this), _TOKENS_RECIPIENT_INTERFACE_HASH, recipient); + } + + function setShouldRevertSend(bool shouldRevert) public { + _shouldRevertSend = shouldRevert; + } + + function setShouldRevertReceive(bool shouldRevert) public { + _shouldRevertReceive = shouldRevert; + } + + function send(IERC777 token, address to, uint256 amount, bytes memory data) public { + // This is 777's send function, not the Solidity send function + token.send(to, amount, data); // solhint-disable-line check-send-result + } + + function burn(IERC777 token, uint256 amount, bytes memory data) public { + token.burn(amount, data); + } +} diff --git a/lib/openzeppelin-contracts/contracts/mocks/wizard/MyGovernor1.sol b/lib/openzeppelin-contracts/contracts/mocks/wizard/MyGovernor1.sol new file mode 100644 index 0000000..37ecfd5 --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/mocks/wizard/MyGovernor1.sol @@ -0,0 +1,79 @@ +// SPDX-License-Identifier: MIT +pragma solidity ^0.8.2; + +import "../../governance/Governor.sol"; +import "../../governance/extensions/GovernorCountingSimple.sol"; +import "../../governance/extensions/GovernorVotes.sol"; +import "../../governance/extensions/GovernorVotesQuorumFraction.sol"; +import "../../governance/extensions/GovernorTimelockControl.sol"; + +contract MyGovernor1 is + Governor, + GovernorTimelockControl, + GovernorVotes, + GovernorVotesQuorumFraction, + GovernorCountingSimple +{ + constructor( + IVotes _token, + TimelockController _timelock + ) Governor("MyGovernor") GovernorVotes(_token) GovernorVotesQuorumFraction(4) GovernorTimelockControl(_timelock) {} + + function votingDelay() public pure override returns (uint256) { + return 1; // 1 block + } + + function votingPeriod() public pure override returns (uint256) { + return 45818; // 1 week + } + + // The following functions are overrides required by Solidity. + + function quorum( + uint256 blockNumber + ) public view override(IGovernor, GovernorVotesQuorumFraction) returns (uint256) { + return super.quorum(blockNumber); + } + + function state(uint256 proposalId) public view override(Governor, GovernorTimelockControl) returns (ProposalState) { + return super.state(proposalId); + } + + function propose( + address[] memory targets, + uint256[] memory values, + bytes[] memory calldatas, + string memory description + ) public override(Governor, IGovernor) returns (uint256) { + return super.propose(targets, values, calldatas, description); + } + + function _execute( + uint256 proposalId, + address[] memory targets, + uint256[] memory values, + bytes[] memory calldatas, + bytes32 descriptionHash + ) internal override(Governor, GovernorTimelockControl) { + super._execute(proposalId, targets, values, calldatas, descriptionHash); + } + + function _cancel( + address[] memory targets, + uint256[] memory values, + bytes[] memory calldatas, + bytes32 descriptionHash + ) internal override(Governor, GovernorTimelockControl) returns (uint256) { + return super._cancel(targets, values, calldatas, descriptionHash); + } + + function _executor() internal view override(Governor, GovernorTimelockControl) returns (address) { + return super._executor(); + } + + function supportsInterface( + bytes4 interfaceId + ) public view override(Governor, GovernorTimelockControl) returns (bool) { + return super.supportsInterface(interfaceId); + } +} diff --git a/lib/openzeppelin-contracts/contracts/mocks/wizard/MyGovernor2.sol b/lib/openzeppelin-contracts/contracts/mocks/wizard/MyGovernor2.sol new file mode 100644 index 0000000..1472b67 --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/mocks/wizard/MyGovernor2.sol @@ -0,0 +1,85 @@ +// SPDX-License-Identifier: MIT +pragma solidity ^0.8.2; + +import "../../governance/Governor.sol"; +import "../../governance/extensions/GovernorProposalThreshold.sol"; +import "../../governance/extensions/GovernorCountingSimple.sol"; +import "../../governance/extensions/GovernorVotes.sol"; +import "../../governance/extensions/GovernorVotesQuorumFraction.sol"; +import "../../governance/extensions/GovernorTimelockControl.sol"; + +contract MyGovernor2 is + Governor, + GovernorTimelockControl, + GovernorProposalThreshold, + GovernorVotes, + GovernorVotesQuorumFraction, + GovernorCountingSimple +{ + constructor( + IVotes _token, + TimelockController _timelock + ) Governor("MyGovernor") GovernorVotes(_token) GovernorVotesQuorumFraction(4) GovernorTimelockControl(_timelock) {} + + function votingDelay() public pure override returns (uint256) { + return 1; // 1 block + } + + function votingPeriod() public pure override returns (uint256) { + return 45818; // 1 week + } + + function proposalThreshold() public pure override returns (uint256) { + return 1000e18; + } + + // The following functions are overrides required by Solidity. + + function quorum( + uint256 blockNumber + ) public view override(IGovernor, GovernorVotesQuorumFraction) returns (uint256) { + return super.quorum(blockNumber); + } + + function state(uint256 proposalId) public view override(Governor, GovernorTimelockControl) returns (ProposalState) { + return super.state(proposalId); + } + + function propose( + address[] memory targets, + uint256[] memory values, + bytes[] memory calldatas, + string memory description + ) public override(Governor, GovernorProposalThreshold, IGovernor) returns (uint256) { + return super.propose(targets, values, calldatas, description); + } + + function _execute( + uint256 proposalId, + address[] memory targets, + uint256[] memory values, + bytes[] memory calldatas, + bytes32 descriptionHash + ) internal override(Governor, GovernorTimelockControl) { + super._execute(proposalId, targets, values, calldatas, descriptionHash); + } + + function _cancel( + address[] memory targets, + uint256[] memory values, + bytes[] memory calldatas, + bytes32 descriptionHash + ) internal override(Governor, GovernorTimelockControl) returns (uint256) { + return super._cancel(targets, values, calldatas, descriptionHash); + } + + function _executor() internal view override(Governor, GovernorTimelockControl) returns (address) { + return super._executor(); + } + + function supportsInterface( + bytes4 interfaceId + ) public view override(Governor, GovernorTimelockControl) returns (bool) { + return super.supportsInterface(interfaceId); + } +} diff --git a/lib/openzeppelin-contracts/contracts/mocks/wizard/MyGovernor3.sol b/lib/openzeppelin-contracts/contracts/mocks/wizard/MyGovernor3.sol new file mode 100644 index 0000000..3203422 --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/mocks/wizard/MyGovernor3.sol @@ -0,0 +1,85 @@ +// SPDX-License-Identifier: MIT +pragma solidity ^0.8.2; + +import "../../governance/Governor.sol"; +import "../../governance/compatibility/GovernorCompatibilityBravo.sol"; +import "../../governance/extensions/GovernorVotes.sol"; +import "../../governance/extensions/GovernorVotesQuorumFraction.sol"; +import "../../governance/extensions/GovernorTimelockControl.sol"; + +contract MyGovernor is + Governor, + GovernorTimelockControl, + GovernorCompatibilityBravo, + GovernorVotes, + GovernorVotesQuorumFraction +{ + constructor( + IVotes _token, + TimelockController _timelock + ) Governor("MyGovernor") GovernorVotes(_token) GovernorVotesQuorumFraction(4) GovernorTimelockControl(_timelock) {} + + function votingDelay() public pure override returns (uint256) { + return 1; // 1 block + } + + function votingPeriod() public pure override returns (uint256) { + return 45818; // 1 week + } + + function proposalThreshold() public pure override returns (uint256) { + return 1000e18; + } + + // The following functions are overrides required by Solidity. + + function quorum( + uint256 blockNumber + ) public view override(IGovernor, GovernorVotesQuorumFraction) returns (uint256) { + return super.quorum(blockNumber); + } + + function state( + uint256 proposalId + ) public view override(Governor, IGovernor, GovernorTimelockControl) returns (ProposalState) { + return super.state(proposalId); + } + + function propose( + address[] memory targets, + uint256[] memory values, + bytes[] memory calldatas, + string memory description + ) public override(Governor, GovernorCompatibilityBravo, IGovernor) returns (uint256) { + return super.propose(targets, values, calldatas, description); + } + + function _execute( + uint256 proposalId, + address[] memory targets, + uint256[] memory values, + bytes[] memory calldatas, + bytes32 descriptionHash + ) internal override(Governor, GovernorTimelockControl) { + super._execute(proposalId, targets, values, calldatas, descriptionHash); + } + + function _cancel( + address[] memory targets, + uint256[] memory values, + bytes[] memory calldatas, + bytes32 descriptionHash + ) internal override(Governor, GovernorTimelockControl) returns (uint256) { + return super._cancel(targets, values, calldatas, descriptionHash); + } + + function _executor() internal view override(Governor, GovernorTimelockControl) returns (address) { + return super._executor(); + } + + function supportsInterface( + bytes4 interfaceId + ) public view override(Governor, IERC165, GovernorTimelockControl) returns (bool) { + return super.supportsInterface(interfaceId); + } +} diff --git a/lib/openzeppelin-contracts/contracts/package.json b/lib/openzeppelin-contracts/contracts/package.json new file mode 100644 index 0000000..e3e6083 --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/package.json @@ -0,0 +1,32 @@ +{ + "name": "@openzeppelin/contracts", + "description": "Secure Smart Contract library for Solidity", + "version": "4.8.0", + "files": [ + "**/*.sol", + "/build/contracts/*.json", + "!/mocks/**/*" + ], + "scripts": { + "prepare": "bash ../scripts/prepare-contracts-package.sh", + "prepare-docs": "cd ..; npm run prepare-docs" + }, + "repository": { + "type": "git", + "url": "https://github.com/OpenZeppelin/openzeppelin-contracts.git" + }, + "keywords": [ + "solidity", + "ethereum", + "smart", + "contracts", + "security", + "zeppelin" + ], + "author": "OpenZeppelin Community ", + "license": "MIT", + "bugs": { + "url": "https://github.com/OpenZeppelin/openzeppelin-contracts/issues" + }, + "homepage": "https://openzeppelin.com/contracts/" +} diff --git a/lib/openzeppelin-contracts/contracts/proxy/Clones.sol b/lib/openzeppelin-contracts/contracts/proxy/Clones.sol new file mode 100644 index 0000000..7125198 --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/proxy/Clones.sol @@ -0,0 +1,88 @@ +// SPDX-License-Identifier: MIT +// OpenZeppelin Contracts (last updated v4.8.0) (proxy/Clones.sol) + +pragma solidity ^0.8.0; + +/** + * @dev https://eips.ethereum.org/EIPS/eip-1167[EIP 1167] is a standard for + * deploying minimal proxy contracts, also known as "clones". + * + * > To simply and cheaply clone contract functionality in an immutable way, this standard specifies + * > a minimal bytecode implementation that delegates all calls to a known, fixed address. + * + * The library includes functions to deploy a proxy using either `create` (traditional deployment) or `create2` + * (salted deterministic deployment). It also includes functions to predict the addresses of clones deployed using the + * deterministic method. + * + * _Available since v3.4._ + */ +library Clones { + /** + * @dev Deploys and returns the address of a clone that mimics the behaviour of `implementation`. + * + * This function uses the create opcode, which should never revert. + */ + function clone(address implementation) internal returns (address instance) { + /// @solidity memory-safe-assembly + assembly { + // Cleans the upper 96 bits of the `implementation` word, then packs the first 3 bytes + // of the `implementation` address with the bytecode before the address. + mstore(0x00, or(shr(0xe8, shl(0x60, implementation)), 0x3d602d80600a3d3981f3363d3d373d3d3d363d73000000)) + // Packs the remaining 17 bytes of `implementation` with the bytecode after the address. + mstore(0x20, or(shl(0x78, implementation), 0x5af43d82803e903d91602b57fd5bf3)) + instance := create(0, 0x09, 0x37) + } + require(instance != address(0), "ERC1167: create failed"); + } + + /** + * @dev Deploys and returns the address of a clone that mimics the behaviour of `implementation`. + * + * This function uses the create2 opcode and a `salt` to deterministically deploy + * the clone. Using the same `implementation` and `salt` multiple time will revert, since + * the clones cannot be deployed twice at the same address. + */ + function cloneDeterministic(address implementation, bytes32 salt) internal returns (address instance) { + /// @solidity memory-safe-assembly + assembly { + // Cleans the upper 96 bits of the `implementation` word, then packs the first 3 bytes + // of the `implementation` address with the bytecode before the address. + mstore(0x00, or(shr(0xe8, shl(0x60, implementation)), 0x3d602d80600a3d3981f3363d3d373d3d3d363d73000000)) + // Packs the remaining 17 bytes of `implementation` with the bytecode after the address. + mstore(0x20, or(shl(0x78, implementation), 0x5af43d82803e903d91602b57fd5bf3)) + instance := create2(0, 0x09, 0x37, salt) + } + require(instance != address(0), "ERC1167: create2 failed"); + } + + /** + * @dev Computes the address of a clone deployed using {Clones-cloneDeterministic}. + */ + function predictDeterministicAddress( + address implementation, + bytes32 salt, + address deployer + ) internal pure returns (address predicted) { + /// @solidity memory-safe-assembly + assembly { + let ptr := mload(0x40) + mstore(add(ptr, 0x38), deployer) + mstore(add(ptr, 0x24), 0x5af43d82803e903d91602b57fd5bf3ff) + mstore(add(ptr, 0x14), implementation) + mstore(ptr, 0x3d602d80600a3d3981f3363d3d373d3d3d363d73) + mstore(add(ptr, 0x58), salt) + mstore(add(ptr, 0x78), keccak256(add(ptr, 0x0c), 0x37)) + predicted := keccak256(add(ptr, 0x43), 0x55) + } + } + + /** + * @dev Computes the address of a clone deployed using {Clones-cloneDeterministic}. + */ + function predictDeterministicAddress( + address implementation, + bytes32 salt + ) internal view returns (address predicted) { + return predictDeterministicAddress(implementation, salt, address(this)); + } +} diff --git a/lib/openzeppelin-contracts/contracts/proxy/ERC1967/ERC1967Proxy.sol b/lib/openzeppelin-contracts/contracts/proxy/ERC1967/ERC1967Proxy.sol new file mode 100644 index 0000000..a04d701 --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/proxy/ERC1967/ERC1967Proxy.sol @@ -0,0 +1,32 @@ +// SPDX-License-Identifier: MIT +// OpenZeppelin Contracts (last updated v4.7.0) (proxy/ERC1967/ERC1967Proxy.sol) + +pragma solidity ^0.8.0; + +import "../Proxy.sol"; +import "./ERC1967Upgrade.sol"; + +/** + * @dev This contract implements an upgradeable proxy. It is upgradeable because calls are delegated to an + * implementation address that can be changed. This address is stored in storage in the location specified by + * https://eips.ethereum.org/EIPS/eip-1967[EIP1967], so that it doesn't conflict with the storage layout of the + * implementation behind the proxy. + */ +contract ERC1967Proxy is Proxy, ERC1967Upgrade { + /** + * @dev Initializes the upgradeable proxy with an initial implementation specified by `_logic`. + * + * If `_data` is nonempty, it's used as data in a delegate call to `_logic`. This will typically be an encoded + * function call, and allows initializing the storage of the proxy like a Solidity constructor. + */ + constructor(address _logic, bytes memory _data) payable { + _upgradeToAndCall(_logic, _data, false); + } + + /** + * @dev Returns the current implementation address. + */ + function _implementation() internal view virtual override returns (address impl) { + return ERC1967Upgrade._getImplementation(); + } +} diff --git a/lib/openzeppelin-contracts/contracts/proxy/ERC1967/ERC1967Upgrade.sol b/lib/openzeppelin-contracts/contracts/proxy/ERC1967/ERC1967Upgrade.sol new file mode 100644 index 0000000..0680f35 --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/proxy/ERC1967/ERC1967Upgrade.sol @@ -0,0 +1,171 @@ +// SPDX-License-Identifier: MIT +// OpenZeppelin Contracts (last updated v4.5.0) (proxy/ERC1967/ERC1967Upgrade.sol) + +pragma solidity ^0.8.2; + +import "../beacon/IBeacon.sol"; +import "../../interfaces/draft-IERC1822.sol"; +import "../../utils/Address.sol"; +import "../../utils/StorageSlot.sol"; + +/** + * @dev This abstract contract provides getters and event emitting update functions for + * https://eips.ethereum.org/EIPS/eip-1967[EIP1967] slots. + * + * _Available since v4.1._ + */ +abstract contract ERC1967Upgrade { + // This is the keccak-256 hash of "eip1967.proxy.rollback" subtracted by 1 + bytes32 private constant _ROLLBACK_SLOT = 0x4910fdfa16fed3260ed0e7147f7cc6da11a60208b5b9406d12a635614ffd9143; + + /** + * @dev Storage slot with the address of the current implementation. + * This is the keccak-256 hash of "eip1967.proxy.implementation" subtracted by 1, and is + * validated in the constructor. + */ + bytes32 internal constant _IMPLEMENTATION_SLOT = 0x360894a13ba1a3210667c828492db98dca3e2076cc3735a920a3ca505d382bbc; + + /** + * @dev Emitted when the implementation is upgraded. + */ + event Upgraded(address indexed implementation); + + /** + * @dev Returns the current implementation address. + */ + function _getImplementation() internal view returns (address) { + return StorageSlot.getAddressSlot(_IMPLEMENTATION_SLOT).value; + } + + /** + * @dev Stores a new address in the EIP1967 implementation slot. + */ + function _setImplementation(address newImplementation) private { + require(Address.isContract(newImplementation), "ERC1967: new implementation is not a contract"); + StorageSlot.getAddressSlot(_IMPLEMENTATION_SLOT).value = newImplementation; + } + + /** + * @dev Perform implementation upgrade + * + * Emits an {Upgraded} event. + */ + function _upgradeTo(address newImplementation) internal { + _setImplementation(newImplementation); + emit Upgraded(newImplementation); + } + + /** + * @dev Perform implementation upgrade with additional setup call. + * + * Emits an {Upgraded} event. + */ + function _upgradeToAndCall(address newImplementation, bytes memory data, bool forceCall) internal { + _upgradeTo(newImplementation); + if (data.length > 0 || forceCall) { + Address.functionDelegateCall(newImplementation, data); + } + } + + /** + * @dev Perform implementation upgrade with security checks for UUPS proxies, and additional setup call. + * + * Emits an {Upgraded} event. + */ + function _upgradeToAndCallUUPS(address newImplementation, bytes memory data, bool forceCall) internal { + // Upgrades from old implementations will perform a rollback test. This test requires the new + // implementation to upgrade back to the old, non-ERC1822 compliant, implementation. Removing + // this special case will break upgrade paths from old UUPS implementation to new ones. + if (StorageSlot.getBooleanSlot(_ROLLBACK_SLOT).value) { + _setImplementation(newImplementation); + } else { + try IERC1822Proxiable(newImplementation).proxiableUUID() returns (bytes32 slot) { + require(slot == _IMPLEMENTATION_SLOT, "ERC1967Upgrade: unsupported proxiableUUID"); + } catch { + revert("ERC1967Upgrade: new implementation is not UUPS"); + } + _upgradeToAndCall(newImplementation, data, forceCall); + } + } + + /** + * @dev Storage slot with the admin of the contract. + * This is the keccak-256 hash of "eip1967.proxy.admin" subtracted by 1, and is + * validated in the constructor. + */ + bytes32 internal constant _ADMIN_SLOT = 0xb53127684a568b3173ae13b9f8a6016e243e63b6e8ee1178d6a717850b5d6103; + + /** + * @dev Emitted when the admin account has changed. + */ + event AdminChanged(address previousAdmin, address newAdmin); + + /** + * @dev Returns the current admin. + */ + function _getAdmin() internal view returns (address) { + return StorageSlot.getAddressSlot(_ADMIN_SLOT).value; + } + + /** + * @dev Stores a new address in the EIP1967 admin slot. + */ + function _setAdmin(address newAdmin) private { + require(newAdmin != address(0), "ERC1967: new admin is the zero address"); + StorageSlot.getAddressSlot(_ADMIN_SLOT).value = newAdmin; + } + + /** + * @dev Changes the admin of the proxy. + * + * Emits an {AdminChanged} event. + */ + function _changeAdmin(address newAdmin) internal { + emit AdminChanged(_getAdmin(), newAdmin); + _setAdmin(newAdmin); + } + + /** + * @dev The storage slot of the UpgradeableBeacon contract which defines the implementation for this proxy. + * This is bytes32(uint256(keccak256('eip1967.proxy.beacon')) - 1)) and is validated in the constructor. + */ + bytes32 internal constant _BEACON_SLOT = 0xa3f0ad74e5423aebfd80d3ef4346578335a9a72aeaee59ff6cb3582b35133d50; + + /** + * @dev Emitted when the beacon is upgraded. + */ + event BeaconUpgraded(address indexed beacon); + + /** + * @dev Returns the current beacon. + */ + function _getBeacon() internal view returns (address) { + return StorageSlot.getAddressSlot(_BEACON_SLOT).value; + } + + /** + * @dev Stores a new beacon in the EIP1967 beacon slot. + */ + function _setBeacon(address newBeacon) private { + require(Address.isContract(newBeacon), "ERC1967: new beacon is not a contract"); + require( + Address.isContract(IBeacon(newBeacon).implementation()), + "ERC1967: beacon implementation is not a contract" + ); + StorageSlot.getAddressSlot(_BEACON_SLOT).value = newBeacon; + } + + /** + * @dev Perform beacon upgrade with additional setup call. Note: This upgrades the address of the beacon, it does + * not upgrade the implementation contained in the beacon (see {UpgradeableBeacon-_setImplementation} for that). + * + * Emits a {BeaconUpgraded} event. + */ + function _upgradeBeaconToAndCall(address newBeacon, bytes memory data, bool forceCall) internal { + _setBeacon(newBeacon); + emit BeaconUpgraded(newBeacon); + if (data.length > 0 || forceCall) { + Address.functionDelegateCall(IBeacon(newBeacon).implementation(), data); + } + } +} diff --git a/lib/openzeppelin-contracts/contracts/proxy/Proxy.sol b/lib/openzeppelin-contracts/contracts/proxy/Proxy.sol new file mode 100644 index 0000000..988cf72 --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/proxy/Proxy.sol @@ -0,0 +1,86 @@ +// SPDX-License-Identifier: MIT +// OpenZeppelin Contracts (last updated v4.6.0) (proxy/Proxy.sol) + +pragma solidity ^0.8.0; + +/** + * @dev This abstract contract provides a fallback function that delegates all calls to another contract using the EVM + * instruction `delegatecall`. We refer to the second contract as the _implementation_ behind the proxy, and it has to + * be specified by overriding the virtual {_implementation} function. + * + * Additionally, delegation to the implementation can be triggered manually through the {_fallback} function, or to a + * different contract through the {_delegate} function. + * + * The success and return data of the delegated call will be returned back to the caller of the proxy. + */ +abstract contract Proxy { + /** + * @dev Delegates the current call to `implementation`. + * + * This function does not return to its internal call site, it will return directly to the external caller. + */ + function _delegate(address implementation) internal virtual { + assembly { + // Copy msg.data. We take full control of memory in this inline assembly + // block because it will not return to Solidity code. We overwrite the + // Solidity scratch pad at memory position 0. + calldatacopy(0, 0, calldatasize()) + + // Call the implementation. + // out and outsize are 0 because we don't know the size yet. + let result := delegatecall(gas(), implementation, 0, calldatasize(), 0, 0) + + // Copy the returned data. + returndatacopy(0, 0, returndatasize()) + + switch result + // delegatecall returns 0 on error. + case 0 { + revert(0, returndatasize()) + } + default { + return(0, returndatasize()) + } + } + } + + /** + * @dev This is a virtual function that should be overridden so it returns the address to which the fallback function + * and {_fallback} should delegate. + */ + function _implementation() internal view virtual returns (address); + + /** + * @dev Delegates the current call to the address returned by `_implementation()`. + * + * This function does not return to its internal call site, it will return directly to the external caller. + */ + function _fallback() internal virtual { + _beforeFallback(); + _delegate(_implementation()); + } + + /** + * @dev Fallback function that delegates calls to the address returned by `_implementation()`. Will run if no other + * function in the contract matches the call data. + */ + fallback() external payable virtual { + _fallback(); + } + + /** + * @dev Fallback function that delegates calls to the address returned by `_implementation()`. Will run if call data + * is empty. + */ + receive() external payable virtual { + _fallback(); + } + + /** + * @dev Hook that is called before falling back to the implementation. Can happen as part of a manual `_fallback` + * call, or as part of the Solidity `fallback` or `receive` functions. + * + * If overridden should call `super._beforeFallback()`. + */ + function _beforeFallback() internal virtual {} +} diff --git a/lib/openzeppelin-contracts/contracts/proxy/README.adoc b/lib/openzeppelin-contracts/contracts/proxy/README.adoc new file mode 100644 index 0000000..5ada16e --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/proxy/README.adoc @@ -0,0 +1,85 @@ += Proxies + +[.readme-notice] +NOTE: This document is better viewed at https://docs.openzeppelin.com/contracts/api/proxy + +This is a low-level set of contracts implementing different proxy patterns with and without upgradeability. For an in-depth overview of this pattern check out the xref:upgrades-plugins::proxies.adoc[Proxy Upgrade Pattern] page. + +Most of the proxies below are built on an abstract base contract. + +- {Proxy}: Abstract contract implementing the core delegation functionality. + +In order to avoid clashes with the storage variables of the implementation contract behind a proxy, we use https://eips.ethereum.org/EIPS/eip-1967[EIP1967] storage slots. + +- {ERC1967Upgrade}: Internal functions to get and set the storage slots defined in EIP1967. +- {ERC1967Proxy}: A proxy using EIP1967 storage slots. Not upgradeable by default. + +There are two alternative ways to add upgradeability to an ERC1967 proxy. Their differences are explained below in <>. + +- {TransparentUpgradeableProxy}: A proxy with a built in admin and upgrade interface. +- {UUPSUpgradeable}: An upgradeability mechanism to be included in the implementation contract. + +CAUTION: Using upgradeable proxies correctly and securely is a difficult task that requires deep knowledge of the proxy pattern, Solidity, and the EVM. Unless you want a lot of low level control, we recommend using the xref:upgrades-plugins::index.adoc[OpenZeppelin Upgrades Plugins] for Truffle and Hardhat. + +A different family of proxies are beacon proxies. This pattern, popularized by Dharma, allows multiple proxies to be upgraded to a different implementation in a single transaction. + +- {BeaconProxy}: A proxy that retrieves its implementation from a beacon contract. +- {UpgradeableBeacon}: A beacon contract with a built in admin that can upgrade the {BeaconProxy} pointing to it. + +In this pattern, the proxy contract doesn't hold the implementation address in storage like an ERC1967 proxy. Instead, the address is stored in a separate beacon contract. The `upgrade` operations are sent to the beacon instead of to the proxy contract, and all proxies that follow that beacon are automatically upgraded. + +Outside the realm of upgradeability, proxies can also be useful to make cheap contract clones, such as those created by an on-chain factory contract that creates many instances of the same contract. These instances are designed to be both cheap to deploy, and cheap to call. + +- {Clones}: A library that can deploy cheap minimal non-upgradeable proxies. + +[[transparent-vs-uups]] +== Transparent vs UUPS Proxies + +The original proxies included in OpenZeppelin followed the https://blog.openzeppelin.com/the-transparent-proxy-pattern/[Transparent Proxy Pattern]. While this pattern is still provided, our recommendation is now shifting towards UUPS proxies, which are both lightweight and versatile. The name UUPS comes from https://eips.ethereum.org/EIPS/eip-1822[EIP1822], which first documented the pattern. + +While both of these share the same interface for upgrades, in UUPS proxies the upgrade is handled by the implementation, and can eventually be removed. Transparent proxies, on the other hand, include the upgrade and admin logic in the proxy itself. This means {TransparentUpgradeableProxy} is more expensive to deploy than what is possible with UUPS proxies. + +UUPS proxies are implemented using an {ERC1967Proxy}. Note that this proxy is not by itself upgradeable. It is the role of the implementation to include, alongside the contract's logic, all the code necessary to update the implementation's address that is stored at a specific slot in the proxy's storage space. This is where the {UUPSUpgradeable} contract comes in. Inheriting from it (and overriding the {xref-UUPSUpgradeable-_authorizeUpgrade-address-}[`_authorizeUpgrade`] function with the relevant access control mechanism) will turn your contract into a UUPS compliant implementation. + +Note that since both proxies use the same storage slot for the implementation address, using a UUPS compliant implementation with a {TransparentUpgradeableProxy} might allow non-admins to perform upgrade operations. + +By default, the upgrade functionality included in {UUPSUpgradeable} contains a security mechanism that will prevent any upgrades to a non UUPS compliant implementation. This prevents upgrades to an implementation contract that wouldn't contain the necessary upgrade mechanism, as it would lock the upgradeability of the proxy forever. This security mechanism can be bypassed by either of: + +- Adding a flag mechanism in the implementation that will disable the upgrade function when triggered. +- Upgrading to an implementation that features an upgrade mechanism without the additional security check, and then upgrading again to another implementation without the upgrade mechanism. + +The current implementation of this security mechanism uses https://eips.ethereum.org/EIPS/eip-1822[EIP1822] to detect the storage slot used by the implementation. A previous implementation, now deprecated, relied on a rollback check. It is possible to upgrade from a contract using the old mechanism to a new one. The inverse is however not possible, as old implementations (before version 4.5) did not include the `ERC1822` interface. + +== Core + +{{Proxy}} + +== ERC1967 + +{{ERC1967Proxy}} + +{{ERC1967Upgrade}} + +== Transparent Proxy + +{{TransparentUpgradeableProxy}} + +{{ProxyAdmin}} + +== Beacon + +{{BeaconProxy}} + +{{IBeacon}} + +{{UpgradeableBeacon}} + +== Minimal Clones + +{{Clones}} + +== Utils + +{{Initializable}} + +{{UUPSUpgradeable}} diff --git a/lib/openzeppelin-contracts/contracts/proxy/beacon/BeaconProxy.sol b/lib/openzeppelin-contracts/contracts/proxy/beacon/BeaconProxy.sol new file mode 100644 index 0000000..d217b15 --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/proxy/beacon/BeaconProxy.sol @@ -0,0 +1,61 @@ +// SPDX-License-Identifier: MIT +// OpenZeppelin Contracts (last updated v4.7.0) (proxy/beacon/BeaconProxy.sol) + +pragma solidity ^0.8.0; + +import "./IBeacon.sol"; +import "../Proxy.sol"; +import "../ERC1967/ERC1967Upgrade.sol"; + +/** + * @dev This contract implements a proxy that gets the implementation address for each call from an {UpgradeableBeacon}. + * + * The beacon address is stored in storage slot `uint256(keccak256('eip1967.proxy.beacon')) - 1`, so that it doesn't + * conflict with the storage layout of the implementation behind the proxy. + * + * _Available since v3.4._ + */ +contract BeaconProxy is Proxy, ERC1967Upgrade { + /** + * @dev Initializes the proxy with `beacon`. + * + * If `data` is nonempty, it's used as data in a delegate call to the implementation returned by the beacon. This + * will typically be an encoded function call, and allows initializing the storage of the proxy like a Solidity + * constructor. + * + * Requirements: + * + * - `beacon` must be a contract with the interface {IBeacon}. + */ + constructor(address beacon, bytes memory data) payable { + _upgradeBeaconToAndCall(beacon, data, false); + } + + /** + * @dev Returns the current beacon address. + */ + function _beacon() internal view virtual returns (address) { + return _getBeacon(); + } + + /** + * @dev Returns the current implementation address of the associated beacon. + */ + function _implementation() internal view virtual override returns (address) { + return IBeacon(_getBeacon()).implementation(); + } + + /** + * @dev Changes the proxy to use a new beacon. Deprecated: see {_upgradeBeaconToAndCall}. + * + * If `data` is nonempty, it's used as data in a delegate call to the implementation returned by the beacon. + * + * Requirements: + * + * - `beacon` must be a contract. + * - The implementation returned by `beacon` must be a contract. + */ + function _setBeacon(address beacon, bytes memory data) internal virtual { + _upgradeBeaconToAndCall(beacon, data, false); + } +} diff --git a/lib/openzeppelin-contracts/contracts/proxy/beacon/IBeacon.sol b/lib/openzeppelin-contracts/contracts/proxy/beacon/IBeacon.sol new file mode 100644 index 0000000..fba3ee2 --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/proxy/beacon/IBeacon.sol @@ -0,0 +1,16 @@ +// SPDX-License-Identifier: MIT +// OpenZeppelin Contracts v4.4.1 (proxy/beacon/IBeacon.sol) + +pragma solidity ^0.8.0; + +/** + * @dev This is the interface that {BeaconProxy} expects of its beacon. + */ +interface IBeacon { + /** + * @dev Must return an address that can be used as a delegate call target. + * + * {BeaconProxy} will check that this address is a contract. + */ + function implementation() external view returns (address); +} diff --git a/lib/openzeppelin-contracts/contracts/proxy/beacon/UpgradeableBeacon.sol b/lib/openzeppelin-contracts/contracts/proxy/beacon/UpgradeableBeacon.sol new file mode 100644 index 0000000..5d83ceb --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/proxy/beacon/UpgradeableBeacon.sol @@ -0,0 +1,65 @@ +// SPDX-License-Identifier: MIT +// OpenZeppelin Contracts v4.4.1 (proxy/beacon/UpgradeableBeacon.sol) + +pragma solidity ^0.8.0; + +import "./IBeacon.sol"; +import "../../access/Ownable.sol"; +import "../../utils/Address.sol"; + +/** + * @dev This contract is used in conjunction with one or more instances of {BeaconProxy} to determine their + * implementation contract, which is where they will delegate all function calls. + * + * An owner is able to change the implementation the beacon points to, thus upgrading the proxies that use this beacon. + */ +contract UpgradeableBeacon is IBeacon, Ownable { + address private _implementation; + + /** + * @dev Emitted when the implementation returned by the beacon is changed. + */ + event Upgraded(address indexed implementation); + + /** + * @dev Sets the address of the initial implementation, and the deployer account as the owner who can upgrade the + * beacon. + */ + constructor(address implementation_) { + _setImplementation(implementation_); + } + + /** + * @dev Returns the current implementation address. + */ + function implementation() public view virtual override returns (address) { + return _implementation; + } + + /** + * @dev Upgrades the beacon to a new implementation. + * + * Emits an {Upgraded} event. + * + * Requirements: + * + * - msg.sender must be the owner of the contract. + * - `newImplementation` must be a contract. + */ + function upgradeTo(address newImplementation) public virtual onlyOwner { + _setImplementation(newImplementation); + emit Upgraded(newImplementation); + } + + /** + * @dev Sets the implementation contract address for this beacon + * + * Requirements: + * + * - `newImplementation` must be a contract. + */ + function _setImplementation(address newImplementation) private { + require(Address.isContract(newImplementation), "UpgradeableBeacon: implementation is not a contract"); + _implementation = newImplementation; + } +} diff --git a/lib/openzeppelin-contracts/contracts/proxy/transparent/ProxyAdmin.sol b/lib/openzeppelin-contracts/contracts/proxy/transparent/ProxyAdmin.sol new file mode 100644 index 0000000..8395342 --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/proxy/transparent/ProxyAdmin.sol @@ -0,0 +1,81 @@ +// SPDX-License-Identifier: MIT +// OpenZeppelin Contracts v4.4.1 (proxy/transparent/ProxyAdmin.sol) + +pragma solidity ^0.8.0; + +import "./TransparentUpgradeableProxy.sol"; +import "../../access/Ownable.sol"; + +/** + * @dev This is an auxiliary contract meant to be assigned as the admin of a {TransparentUpgradeableProxy}. For an + * explanation of why you would want to use this see the documentation for {TransparentUpgradeableProxy}. + */ +contract ProxyAdmin is Ownable { + /** + * @dev Returns the current implementation of `proxy`. + * + * Requirements: + * + * - This contract must be the admin of `proxy`. + */ + function getProxyImplementation(TransparentUpgradeableProxy proxy) public view virtual returns (address) { + // We need to manually run the static call since the getter cannot be flagged as view + // bytes4(keccak256("implementation()")) == 0x5c60da1b + (bool success, bytes memory returndata) = address(proxy).staticcall(hex"5c60da1b"); + require(success); + return abi.decode(returndata, (address)); + } + + /** + * @dev Returns the current admin of `proxy`. + * + * Requirements: + * + * - This contract must be the admin of `proxy`. + */ + function getProxyAdmin(TransparentUpgradeableProxy proxy) public view virtual returns (address) { + // We need to manually run the static call since the getter cannot be flagged as view + // bytes4(keccak256("admin()")) == 0xf851a440 + (bool success, bytes memory returndata) = address(proxy).staticcall(hex"f851a440"); + require(success); + return abi.decode(returndata, (address)); + } + + /** + * @dev Changes the admin of `proxy` to `newAdmin`. + * + * Requirements: + * + * - This contract must be the current admin of `proxy`. + */ + function changeProxyAdmin(TransparentUpgradeableProxy proxy, address newAdmin) public virtual onlyOwner { + proxy.changeAdmin(newAdmin); + } + + /** + * @dev Upgrades `proxy` to `implementation`. See {TransparentUpgradeableProxy-upgradeTo}. + * + * Requirements: + * + * - This contract must be the admin of `proxy`. + */ + function upgrade(TransparentUpgradeableProxy proxy, address implementation) public virtual onlyOwner { + proxy.upgradeTo(implementation); + } + + /** + * @dev Upgrades `proxy` to `implementation` and calls a function on the new implementation. See + * {TransparentUpgradeableProxy-upgradeToAndCall}. + * + * Requirements: + * + * - This contract must be the admin of `proxy`. + */ + function upgradeAndCall( + TransparentUpgradeableProxy proxy, + address implementation, + bytes memory data + ) public payable virtual onlyOwner { + proxy.upgradeToAndCall{value: msg.value}(implementation, data); + } +} diff --git a/lib/openzeppelin-contracts/contracts/proxy/transparent/TransparentUpgradeableProxy.sol b/lib/openzeppelin-contracts/contracts/proxy/transparent/TransparentUpgradeableProxy.sol new file mode 100644 index 0000000..155a22e --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/proxy/transparent/TransparentUpgradeableProxy.sol @@ -0,0 +1,132 @@ +// SPDX-License-Identifier: MIT +// OpenZeppelin Contracts (last updated v4.7.0) (proxy/transparent/TransparentUpgradeableProxy.sol) + +pragma solidity ^0.8.0; + +import "../ERC1967/ERC1967Proxy.sol"; + +/** + * @dev This contract implements a proxy that is upgradeable by an admin. + * + * To avoid https://medium.com/nomic-labs-blog/malicious-backdoors-in-ethereum-proxies-62629adf3357[proxy selector + * clashing], which can potentially be used in an attack, this contract uses the + * https://blog.openzeppelin.com/the-transparent-proxy-pattern/[transparent proxy pattern]. This pattern implies two + * things that go hand in hand: + * + * 1. If any account other than the admin calls the proxy, the call will be forwarded to the implementation, even if + * that call matches one of the admin functions exposed by the proxy itself. + * 2. If the admin calls the proxy, it can access the admin functions, but its calls will never be forwarded to the + * implementation. If the admin tries to call a function on the implementation it will fail with an error that says + * "admin cannot fallback to proxy target". + * + * These properties mean that the admin account can only be used for admin actions like upgrading the proxy or changing + * the admin, so it's best if it's a dedicated account that is not used for anything else. This will avoid headaches due + * to sudden errors when trying to call a function from the proxy implementation. + * + * Our recommendation is for the dedicated account to be an instance of the {ProxyAdmin} contract. If set up this way, + * you should think of the `ProxyAdmin` instance as the real administrative interface of your proxy. + */ +contract TransparentUpgradeableProxy is ERC1967Proxy { + /** + * @dev Initializes an upgradeable proxy managed by `_admin`, backed by the implementation at `_logic`, and + * optionally initialized with `_data` as explained in {ERC1967Proxy-constructor}. + */ + constructor(address _logic, address admin_, bytes memory _data) payable ERC1967Proxy(_logic, _data) { + _changeAdmin(admin_); + } + + /** + * @dev Modifier used internally that will delegate the call to the implementation unless the sender is the admin. + */ + modifier ifAdmin() { + if (msg.sender == _getAdmin()) { + _; + } else { + _fallback(); + } + } + + /** + * @dev Returns the current admin. + * + * NOTE: Only the admin can call this function. See {ProxyAdmin-getProxyAdmin}. + * + * TIP: To get this value clients can read directly from the storage slot shown below (specified by EIP1967) using the + * https://eth.wiki/json-rpc/API#eth_getstorageat[`eth_getStorageAt`] RPC call. + * `0xb53127684a568b3173ae13b9f8a6016e243e63b6e8ee1178d6a717850b5d6103` + */ + function admin() external payable ifAdmin returns (address admin_) { + _requireZeroValue(); + admin_ = _getAdmin(); + } + + /** + * @dev Returns the current implementation. + * + * NOTE: Only the admin can call this function. See {ProxyAdmin-getProxyImplementation}. + * + * TIP: To get this value clients can read directly from the storage slot shown below (specified by EIP1967) using the + * https://eth.wiki/json-rpc/API#eth_getstorageat[`eth_getStorageAt`] RPC call. + * `0x360894a13ba1a3210667c828492db98dca3e2076cc3735a920a3ca505d382bbc` + */ + function implementation() external payable ifAdmin returns (address implementation_) { + _requireZeroValue(); + implementation_ = _implementation(); + } + + /** + * @dev Changes the admin of the proxy. + * + * Emits an {AdminChanged} event. + * + * NOTE: Only the admin can call this function. See {ProxyAdmin-changeProxyAdmin}. + */ + function changeAdmin(address newAdmin) external payable virtual ifAdmin { + _requireZeroValue(); + _changeAdmin(newAdmin); + } + + /** + * @dev Upgrade the implementation of the proxy. + * + * NOTE: Only the admin can call this function. See {ProxyAdmin-upgrade}. + */ + function upgradeTo(address newImplementation) external payable ifAdmin { + _requireZeroValue(); + _upgradeToAndCall(newImplementation, bytes(""), false); + } + + /** + * @dev Upgrade the implementation of the proxy, and then call a function from the new implementation as specified + * by `data`, which should be an encoded function call. This is useful to initialize new storage variables in the + * proxied contract. + * + * NOTE: Only the admin can call this function. See {ProxyAdmin-upgradeAndCall}. + */ + function upgradeToAndCall(address newImplementation, bytes calldata data) external payable ifAdmin { + _upgradeToAndCall(newImplementation, data, true); + } + + /** + * @dev Returns the current admin. + */ + function _admin() internal view virtual returns (address) { + return _getAdmin(); + } + + /** + * @dev Makes sure the admin cannot access the fallback function. See {Proxy-_beforeFallback}. + */ + function _beforeFallback() internal virtual override { + require(msg.sender != _getAdmin(), "TransparentUpgradeableProxy: admin cannot fallback to proxy target"); + super._beforeFallback(); + } + + /** + * @dev To keep this contract fully transparent, all `ifAdmin` functions must be payable. This helper is here to + * emulate some proxy functions being non-payable while still allowing value to pass through. + */ + function _requireZeroValue() private { + require(msg.value == 0); + } +} diff --git a/lib/openzeppelin-contracts/contracts/proxy/utils/Initializable.sol b/lib/openzeppelin-contracts/contracts/proxy/utils/Initializable.sol new file mode 100644 index 0000000..b454b5d --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/proxy/utils/Initializable.sol @@ -0,0 +1,165 @@ +// SPDX-License-Identifier: MIT +// OpenZeppelin Contracts (last updated v4.8.0) (proxy/utils/Initializable.sol) + +pragma solidity ^0.8.2; + +import "../../utils/Address.sol"; + +/** + * @dev This is a base contract to aid in writing upgradeable contracts, or any kind of contract that will be deployed + * behind a proxy. Since proxied contracts do not make use of a constructor, it's common to move constructor logic to an + * external initializer function, usually called `initialize`. It then becomes necessary to protect this initializer + * function so it can only be called once. The {initializer} modifier provided by this contract will have this effect. + * + * The initialization functions use a version number. Once a version number is used, it is consumed and cannot be + * reused. This mechanism prevents re-execution of each "step" but allows the creation of new initialization steps in + * case an upgrade adds a module that needs to be initialized. + * + * For example: + * + * [.hljs-theme-light.nopadding] + * ``` + * contract MyToken is ERC20Upgradeable { + * function initialize() initializer public { + * __ERC20_init("MyToken", "MTK"); + * } + * } + * contract MyTokenV2 is MyToken, ERC20PermitUpgradeable { + * function initializeV2() reinitializer(2) public { + * __ERC20Permit_init("MyToken"); + * } + * } + * ``` + * + * TIP: To avoid leaving the proxy in an uninitialized state, the initializer function should be called as early as + * possible by providing the encoded function call as the `_data` argument to {ERC1967Proxy-constructor}. + * + * CAUTION: When used with inheritance, manual care must be taken to not invoke a parent initializer twice, or to ensure + * that all initializers are idempotent. This is not verified automatically as constructors are by Solidity. + * + * [CAUTION] + * ==== + * Avoid leaving a contract uninitialized. + * + * An uninitialized contract can be taken over by an attacker. This applies to both a proxy and its implementation + * contract, which may impact the proxy. To prevent the implementation contract from being used, you should invoke + * the {_disableInitializers} function in the constructor to automatically lock it when it is deployed: + * + * [.hljs-theme-light.nopadding] + * ``` + * /// @custom:oz-upgrades-unsafe-allow constructor + * constructor() { + * _disableInitializers(); + * } + * ``` + * ==== + */ +abstract contract Initializable { + /** + * @dev Indicates that the contract has been initialized. + * @custom:oz-retyped-from bool + */ + uint8 private _initialized; + + /** + * @dev Indicates that the contract is in the process of being initialized. + */ + bool private _initializing; + + /** + * @dev Triggered when the contract has been initialized or reinitialized. + */ + event Initialized(uint8 version); + + /** + * @dev A modifier that defines a protected initializer function that can be invoked at most once. In its scope, + * `onlyInitializing` functions can be used to initialize parent contracts. + * + * Similar to `reinitializer(1)`, except that functions marked with `initializer` can be nested in the context of a + * constructor. + * + * Emits an {Initialized} event. + */ + modifier initializer() { + bool isTopLevelCall = !_initializing; + require( + (isTopLevelCall && _initialized < 1) || (!Address.isContract(address(this)) && _initialized == 1), + "Initializable: contract is already initialized" + ); + _initialized = 1; + if (isTopLevelCall) { + _initializing = true; + } + _; + if (isTopLevelCall) { + _initializing = false; + emit Initialized(1); + } + } + + /** + * @dev A modifier that defines a protected reinitializer function that can be invoked at most once, and only if the + * contract hasn't been initialized to a greater version before. In its scope, `onlyInitializing` functions can be + * used to initialize parent contracts. + * + * A reinitializer may be used after the original initialization step. This is essential to configure modules that + * are added through upgrades and that require initialization. + * + * When `version` is 1, this modifier is similar to `initializer`, except that functions marked with `reinitializer` + * cannot be nested. If one is invoked in the context of another, execution will revert. + * + * Note that versions can jump in increments greater than 1; this implies that if multiple reinitializers coexist in + * a contract, executing them in the right order is up to the developer or operator. + * + * WARNING: setting the version to 255 will prevent any future reinitialization. + * + * Emits an {Initialized} event. + */ + modifier reinitializer(uint8 version) { + require(!_initializing && _initialized < version, "Initializable: contract is already initialized"); + _initialized = version; + _initializing = true; + _; + _initializing = false; + emit Initialized(version); + } + + /** + * @dev Modifier to protect an initialization function so that it can only be invoked by functions with the + * {initializer} and {reinitializer} modifiers, directly or indirectly. + */ + modifier onlyInitializing() { + require(_initializing, "Initializable: contract is not initializing"); + _; + } + + /** + * @dev Locks the contract, preventing any future reinitialization. This cannot be part of an initializer call. + * Calling this in the constructor of a contract will prevent that contract from being initialized or reinitialized + * to any version. It is recommended to use this to lock implementation contracts that are designed to be called + * through proxies. + * + * Emits an {Initialized} event the first time it is successfully executed. + */ + function _disableInitializers() internal virtual { + require(!_initializing, "Initializable: contract is initializing"); + if (_initialized != type(uint8).max) { + _initialized = type(uint8).max; + emit Initialized(type(uint8).max); + } + } + + /** + * @dev Returns the highest version that has been initialized. See {reinitializer}. + */ + function _getInitializedVersion() internal view returns (uint8) { + return _initialized; + } + + /** + * @dev Returns `true` if the contract is currently initializing. See {onlyInitializing}. + */ + function _isInitializing() internal view returns (bool) { + return _initializing; + } +} diff --git a/lib/openzeppelin-contracts/contracts/proxy/utils/UUPSUpgradeable.sol b/lib/openzeppelin-contracts/contracts/proxy/utils/UUPSUpgradeable.sol new file mode 100644 index 0000000..bb696f6 --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/proxy/utils/UUPSUpgradeable.sol @@ -0,0 +1,99 @@ +// SPDX-License-Identifier: MIT +// OpenZeppelin Contracts (last updated v4.8.0) (proxy/utils/UUPSUpgradeable.sol) + +pragma solidity ^0.8.0; + +import "../../interfaces/draft-IERC1822.sol"; +import "../ERC1967/ERC1967Upgrade.sol"; + +/** + * @dev An upgradeability mechanism designed for UUPS proxies. The functions included here can perform an upgrade of an + * {ERC1967Proxy}, when this contract is set as the implementation behind such a proxy. + * + * A security mechanism ensures that an upgrade does not turn off upgradeability accidentally, although this risk is + * reinstated if the upgrade retains upgradeability but removes the security mechanism, e.g. by replacing + * `UUPSUpgradeable` with a custom implementation of upgrades. + * + * The {_authorizeUpgrade} function must be overridden to include access restriction to the upgrade mechanism. + * + * _Available since v4.1._ + */ +abstract contract UUPSUpgradeable is IERC1822Proxiable, ERC1967Upgrade { + /// @custom:oz-upgrades-unsafe-allow state-variable-immutable state-variable-assignment + address private immutable __self = address(this); + + /** + * @dev Check that the execution is being performed through a delegatecall call and that the execution context is + * a proxy contract with an implementation (as defined in ERC1967) pointing to self. This should only be the case + * for UUPS and transparent proxies that are using the current contract as their implementation. Execution of a + * function through ERC1167 minimal proxies (clones) would not normally pass this test, but is not guaranteed to + * fail. + */ + modifier onlyProxy() { + require(address(this) != __self, "Function must be called through delegatecall"); + require(_getImplementation() == __self, "Function must be called through active proxy"); + _; + } + + /** + * @dev Check that the execution is not being performed through a delegate call. This allows a function to be + * callable on the implementing contract but not through proxies. + */ + modifier notDelegated() { + require(address(this) == __self, "UUPSUpgradeable: must not be called through delegatecall"); + _; + } + + /** + * @dev Implementation of the ERC1822 {proxiableUUID} function. This returns the storage slot used by the + * implementation. It is used to validate the implementation's compatibility when performing an upgrade. + * + * IMPORTANT: A proxy pointing at a proxiable contract should not be considered proxiable itself, because this risks + * bricking a proxy that upgrades to it, by delegating to itself until out of gas. Thus it is critical that this + * function revert if invoked through a proxy. This is guaranteed by the `notDelegated` modifier. + */ + function proxiableUUID() external view virtual override notDelegated returns (bytes32) { + return _IMPLEMENTATION_SLOT; + } + + /** + * @dev Upgrade the implementation of the proxy to `newImplementation`. + * + * Calls {_authorizeUpgrade}. + * + * Emits an {Upgraded} event. + * + * @custom:oz-upgrades-unsafe-allow-reachable delegatecall + */ + function upgradeTo(address newImplementation) external virtual onlyProxy { + _authorizeUpgrade(newImplementation); + _upgradeToAndCallUUPS(newImplementation, new bytes(0), false); + } + + /** + * @dev Upgrade the implementation of the proxy to `newImplementation`, and subsequently execute the function call + * encoded in `data`. + * + * Calls {_authorizeUpgrade}. + * + * Emits an {Upgraded} event. + * + * @custom:oz-upgrades-unsafe-allow-reachable delegatecall + */ + function upgradeToAndCall(address newImplementation, bytes memory data) external payable virtual onlyProxy { + _authorizeUpgrade(newImplementation); + _upgradeToAndCallUUPS(newImplementation, data, true); + } + + /** + * @dev Function that should revert when `msg.sender` is not authorized to upgrade the contract. Called by + * {upgradeTo} and {upgradeToAndCall}. + * + * Normally, this function will use an xref:access.adoc[access control] modifier such as {Ownable-onlyOwner}. + * + * ```solidity + * function _authorizeUpgrade(address) internal override onlyOwner {} + * ``` + */ + function _authorizeUpgrade(address newImplementation) internal virtual; +} diff --git a/lib/openzeppelin-contracts/contracts/security/Pausable.sol b/lib/openzeppelin-contracts/contracts/security/Pausable.sol new file mode 100644 index 0000000..bdd1184 --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/security/Pausable.sol @@ -0,0 +1,105 @@ +// SPDX-License-Identifier: MIT +// OpenZeppelin Contracts (last updated v4.7.0) (security/Pausable.sol) + +pragma solidity ^0.8.0; + +import "../utils/Context.sol"; + +/** + * @dev Contract module which allows children to implement an emergency stop + * mechanism that can be triggered by an authorized account. + * + * This module is used through inheritance. It will make available the + * modifiers `whenNotPaused` and `whenPaused`, which can be applied to + * the functions of your contract. Note that they will not be pausable by + * simply including this module, only once the modifiers are put in place. + */ +abstract contract Pausable is Context { + /** + * @dev Emitted when the pause is triggered by `account`. + */ + event Paused(address account); + + /** + * @dev Emitted when the pause is lifted by `account`. + */ + event Unpaused(address account); + + bool private _paused; + + /** + * @dev Initializes the contract in unpaused state. + */ + constructor() { + _paused = false; + } + + /** + * @dev Modifier to make a function callable only when the contract is not paused. + * + * Requirements: + * + * - The contract must not be paused. + */ + modifier whenNotPaused() { + _requireNotPaused(); + _; + } + + /** + * @dev Modifier to make a function callable only when the contract is paused. + * + * Requirements: + * + * - The contract must be paused. + */ + modifier whenPaused() { + _requirePaused(); + _; + } + + /** + * @dev Returns true if the contract is paused, and false otherwise. + */ + function paused() public view virtual returns (bool) { + return _paused; + } + + /** + * @dev Throws if the contract is paused. + */ + function _requireNotPaused() internal view virtual { + require(!paused(), "Pausable: paused"); + } + + /** + * @dev Throws if the contract is not paused. + */ + function _requirePaused() internal view virtual { + require(paused(), "Pausable: not paused"); + } + + /** + * @dev Triggers stopped state. + * + * Requirements: + * + * - The contract must not be paused. + */ + function _pause() internal virtual whenNotPaused { + _paused = true; + emit Paused(_msgSender()); + } + + /** + * @dev Returns to normal state. + * + * Requirements: + * + * - The contract must be paused. + */ + function _unpause() internal virtual whenPaused { + _paused = false; + emit Unpaused(_msgSender()); + } +} diff --git a/lib/openzeppelin-contracts/contracts/security/PullPayment.sol b/lib/openzeppelin-contracts/contracts/security/PullPayment.sol new file mode 100644 index 0000000..65b4980 --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/security/PullPayment.sol @@ -0,0 +1,74 @@ +// SPDX-License-Identifier: MIT +// OpenZeppelin Contracts (last updated v4.8.0) (security/PullPayment.sol) + +pragma solidity ^0.8.0; + +import "../utils/escrow/Escrow.sol"; + +/** + * @dev Simple implementation of a + * https://consensys.github.io/smart-contract-best-practices/development-recommendations/general/external-calls/#favor-pull-over-push-for-external-calls[pull-payment] + * strategy, where the paying contract doesn't interact directly with the + * receiver account, which must withdraw its payments itself. + * + * Pull-payments are often considered the best practice when it comes to sending + * Ether, security-wise. It prevents recipients from blocking execution, and + * eliminates reentrancy concerns. + * + * TIP: If you would like to learn more about reentrancy and alternative ways + * to protect against it, check out our blog post + * https://blog.openzeppelin.com/reentrancy-after-istanbul/[Reentrancy After Istanbul]. + * + * To use, derive from the `PullPayment` contract, and use {_asyncTransfer} + * instead of Solidity's `transfer` function. Payees can query their due + * payments with {payments}, and retrieve them with {withdrawPayments}. + */ +abstract contract PullPayment { + Escrow private immutable _escrow; + + constructor() { + _escrow = new Escrow(); + } + + /** + * @dev Withdraw accumulated payments, forwarding all gas to the recipient. + * + * Note that _any_ account can call this function, not just the `payee`. + * This means that contracts unaware of the `PullPayment` protocol can still + * receive funds this way, by having a separate account call + * {withdrawPayments}. + * + * WARNING: Forwarding all gas opens the door to reentrancy vulnerabilities. + * Make sure you trust the recipient, or are either following the + * checks-effects-interactions pattern or using {ReentrancyGuard}. + * + * @param payee Whose payments will be withdrawn. + * + * Causes the `escrow` to emit a {Withdrawn} event. + */ + function withdrawPayments(address payable payee) public virtual { + _escrow.withdraw(payee); + } + + /** + * @dev Returns the payments owed to an address. + * @param dest The creditor's address. + */ + function payments(address dest) public view returns (uint256) { + return _escrow.depositsOf(dest); + } + + /** + * @dev Called by the payer to store the sent amount as credit to be pulled. + * Funds sent in this way are stored in an intermediate {Escrow} contract, so + * there is no danger of them being spent before withdrawal. + * + * @param dest The destination address of the funds. + * @param amount The amount to transfer. + * + * Causes the `escrow` to emit a {Deposited} event. + */ + function _asyncTransfer(address dest, uint256 amount) internal virtual { + _escrow.deposit{value: amount}(dest); + } +} diff --git a/lib/openzeppelin-contracts/contracts/security/README.adoc b/lib/openzeppelin-contracts/contracts/security/README.adoc new file mode 100644 index 0000000..66f398f --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/security/README.adoc @@ -0,0 +1,20 @@ += Security + +[.readme-notice] +NOTE: This document is better viewed at https://docs.openzeppelin.com/contracts/api/security + +These contracts aim to cover common security practices. + +* {PullPayment}: A pattern that can be used to avoid reentrancy attacks. +* {ReentrancyGuard}: A modifier that can prevent reentrancy during certain functions. +* {Pausable}: A common emergency response mechanism that can pause functionality while a remediation is pending. + +TIP: For an overview on reentrancy and the possible mechanisms to prevent it, read our article https://blog.openzeppelin.com/reentrancy-after-istanbul/[Reentrancy After Istanbul]. + +== Contracts + +{{PullPayment}} + +{{ReentrancyGuard}} + +{{Pausable}} diff --git a/lib/openzeppelin-contracts/contracts/security/ReentrancyGuard.sol b/lib/openzeppelin-contracts/contracts/security/ReentrancyGuard.sol new file mode 100644 index 0000000..f9281ec --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/security/ReentrancyGuard.sol @@ -0,0 +1,77 @@ +// SPDX-License-Identifier: MIT +// OpenZeppelin Contracts (last updated v4.8.0) (security/ReentrancyGuard.sol) + +pragma solidity ^0.8.0; + +/** + * @dev Contract module that helps prevent reentrant calls to a function. + * + * Inheriting from `ReentrancyGuard` will make the {nonReentrant} modifier + * available, which can be applied to functions to make sure there are no nested + * (reentrant) calls to them. + * + * Note that because there is a single `nonReentrant` guard, functions marked as + * `nonReentrant` may not call one another. This can be worked around by making + * those functions `private`, and then adding `external` `nonReentrant` entry + * points to them. + * + * TIP: If you would like to learn more about reentrancy and alternative ways + * to protect against it, check out our blog post + * https://blog.openzeppelin.com/reentrancy-after-istanbul/[Reentrancy After Istanbul]. + */ +abstract contract ReentrancyGuard { + // Booleans are more expensive than uint256 or any type that takes up a full + // word because each write operation emits an extra SLOAD to first read the + // slot's contents, replace the bits taken up by the boolean, and then write + // back. This is the compiler's defense against contract upgrades and + // pointer aliasing, and it cannot be disabled. + + // The values being non-zero value makes deployment a bit more expensive, + // but in exchange the refund on every call to nonReentrant will be lower in + // amount. Since refunds are capped to a percentage of the total + // transaction's gas, it is best to keep them low in cases like this one, to + // increase the likelihood of the full refund coming into effect. + uint256 private constant _NOT_ENTERED = 1; + uint256 private constant _ENTERED = 2; + + uint256 private _status; + + constructor() { + _status = _NOT_ENTERED; + } + + /** + * @dev Prevents a contract from calling itself, directly or indirectly. + * Calling a `nonReentrant` function from another `nonReentrant` + * function is not supported. It is possible to prevent this from happening + * by making the `nonReentrant` function external, and making it call a + * `private` function that does the actual work. + */ + modifier nonReentrant() { + _nonReentrantBefore(); + _; + _nonReentrantAfter(); + } + + function _nonReentrantBefore() private { + // On the first call to nonReentrant, _status will be _NOT_ENTERED + require(_status != _ENTERED, "ReentrancyGuard: reentrant call"); + + // Any calls to nonReentrant after this point will fail + _status = _ENTERED; + } + + function _nonReentrantAfter() private { + // By storing the original value once again, a refund is triggered (see + // https://eips.ethereum.org/EIPS/eip-2200) + _status = _NOT_ENTERED; + } + + /** + * @dev Returns true if the reentrancy guard is currently set to "entered", which indicates there is a + * `nonReentrant` function in the call stack. + */ + function _reentrancyGuardEntered() internal view returns (bool) { + return _status == _ENTERED; + } +} diff --git a/lib/openzeppelin-contracts/contracts/token/ERC1155/ERC1155.sol b/lib/openzeppelin-contracts/contracts/token/ERC1155/ERC1155.sol new file mode 100644 index 0000000..b20b711 --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/token/ERC1155/ERC1155.sol @@ -0,0 +1,497 @@ +// SPDX-License-Identifier: MIT +// OpenZeppelin Contracts (last updated v4.8.0) (token/ERC1155/ERC1155.sol) + +pragma solidity ^0.8.0; + +import "./IERC1155.sol"; +import "./IERC1155Receiver.sol"; +import "./extensions/IERC1155MetadataURI.sol"; +import "../../utils/Address.sol"; +import "../../utils/Context.sol"; +import "../../utils/introspection/ERC165.sol"; + +/** + * @dev Implementation of the basic standard multi-token. + * See https://eips.ethereum.org/EIPS/eip-1155 + * Originally based on code by Enjin: https://github.com/enjin/erc-1155 + * + * _Available since v3.1._ + */ +contract ERC1155 is Context, ERC165, IERC1155, IERC1155MetadataURI { + using Address for address; + + // Mapping from token ID to account balances + mapping(uint256 => mapping(address => uint256)) private _balances; + + // Mapping from account to operator approvals + mapping(address => mapping(address => bool)) private _operatorApprovals; + + // Used as the URI for all token types by relying on ID substitution, e.g. https://token-cdn-domain/{id}.json + string private _uri; + + /** + * @dev See {_setURI}. + */ + constructor(string memory uri_) { + _setURI(uri_); + } + + /** + * @dev See {IERC165-supportsInterface}. + */ + function supportsInterface(bytes4 interfaceId) public view virtual override(ERC165, IERC165) returns (bool) { + return + interfaceId == type(IERC1155).interfaceId || + interfaceId == type(IERC1155MetadataURI).interfaceId || + super.supportsInterface(interfaceId); + } + + /** + * @dev See {IERC1155MetadataURI-uri}. + * + * This implementation returns the same URI for *all* token types. It relies + * on the token type ID substitution mechanism + * https://eips.ethereum.org/EIPS/eip-1155#metadata[defined in the EIP]. + * + * Clients calling this function must replace the `\{id\}` substring with the + * actual token type ID. + */ + function uri(uint256) public view virtual override returns (string memory) { + return _uri; + } + + /** + * @dev See {IERC1155-balanceOf}. + * + * Requirements: + * + * - `account` cannot be the zero address. + */ + function balanceOf(address account, uint256 id) public view virtual override returns (uint256) { + require(account != address(0), "ERC1155: address zero is not a valid owner"); + return _balances[id][account]; + } + + /** + * @dev See {IERC1155-balanceOfBatch}. + * + * Requirements: + * + * - `accounts` and `ids` must have the same length. + */ + function balanceOfBatch( + address[] memory accounts, + uint256[] memory ids + ) public view virtual override returns (uint256[] memory) { + require(accounts.length == ids.length, "ERC1155: accounts and ids length mismatch"); + + uint256[] memory batchBalances = new uint256[](accounts.length); + + for (uint256 i = 0; i < accounts.length; ++i) { + batchBalances[i] = balanceOf(accounts[i], ids[i]); + } + + return batchBalances; + } + + /** + * @dev See {IERC1155-setApprovalForAll}. + */ + function setApprovalForAll(address operator, bool approved) public virtual override { + _setApprovalForAll(_msgSender(), operator, approved); + } + + /** + * @dev See {IERC1155-isApprovedForAll}. + */ + function isApprovedForAll(address account, address operator) public view virtual override returns (bool) { + return _operatorApprovals[account][operator]; + } + + /** + * @dev See {IERC1155-safeTransferFrom}. + */ + function safeTransferFrom( + address from, + address to, + uint256 id, + uint256 amount, + bytes memory data + ) public virtual override { + require( + from == _msgSender() || isApprovedForAll(from, _msgSender()), + "ERC1155: caller is not token owner or approved" + ); + _safeTransferFrom(from, to, id, amount, data); + } + + /** + * @dev See {IERC1155-safeBatchTransferFrom}. + */ + function safeBatchTransferFrom( + address from, + address to, + uint256[] memory ids, + uint256[] memory amounts, + bytes memory data + ) public virtual override { + require( + from == _msgSender() || isApprovedForAll(from, _msgSender()), + "ERC1155: caller is not token owner or approved" + ); + _safeBatchTransferFrom(from, to, ids, amounts, data); + } + + /** + * @dev Transfers `amount` tokens of token type `id` from `from` to `to`. + * + * Emits a {TransferSingle} event. + * + * Requirements: + * + * - `to` cannot be the zero address. + * - `from` must have a balance of tokens of type `id` of at least `amount`. + * - If `to` refers to a smart contract, it must implement {IERC1155Receiver-onERC1155Received} and return the + * acceptance magic value. + */ + function _safeTransferFrom( + address from, + address to, + uint256 id, + uint256 amount, + bytes memory data + ) internal virtual { + require(to != address(0), "ERC1155: transfer to the zero address"); + + address operator = _msgSender(); + uint256[] memory ids = _asSingletonArray(id); + uint256[] memory amounts = _asSingletonArray(amount); + + _beforeTokenTransfer(operator, from, to, ids, amounts, data); + + uint256 fromBalance = _balances[id][from]; + require(fromBalance >= amount, "ERC1155: insufficient balance for transfer"); + unchecked { + _balances[id][from] = fromBalance - amount; + } + _balances[id][to] += amount; + + emit TransferSingle(operator, from, to, id, amount); + + _afterTokenTransfer(operator, from, to, ids, amounts, data); + + _doSafeTransferAcceptanceCheck(operator, from, to, id, amount, data); + } + + /** + * @dev xref:ROOT:erc1155.adoc#batch-operations[Batched] version of {_safeTransferFrom}. + * + * Emits a {TransferBatch} event. + * + * Requirements: + * + * - If `to` refers to a smart contract, it must implement {IERC1155Receiver-onERC1155BatchReceived} and return the + * acceptance magic value. + */ + function _safeBatchTransferFrom( + address from, + address to, + uint256[] memory ids, + uint256[] memory amounts, + bytes memory data + ) internal virtual { + require(ids.length == amounts.length, "ERC1155: ids and amounts length mismatch"); + require(to != address(0), "ERC1155: transfer to the zero address"); + + address operator = _msgSender(); + + _beforeTokenTransfer(operator, from, to, ids, amounts, data); + + for (uint256 i = 0; i < ids.length; ++i) { + uint256 id = ids[i]; + uint256 amount = amounts[i]; + + uint256 fromBalance = _balances[id][from]; + require(fromBalance >= amount, "ERC1155: insufficient balance for transfer"); + unchecked { + _balances[id][from] = fromBalance - amount; + } + _balances[id][to] += amount; + } + + emit TransferBatch(operator, from, to, ids, amounts); + + _afterTokenTransfer(operator, from, to, ids, amounts, data); + + _doSafeBatchTransferAcceptanceCheck(operator, from, to, ids, amounts, data); + } + + /** + * @dev Sets a new URI for all token types, by relying on the token type ID + * substitution mechanism + * https://eips.ethereum.org/EIPS/eip-1155#metadata[defined in the EIP]. + * + * By this mechanism, any occurrence of the `\{id\}` substring in either the + * URI or any of the amounts in the JSON file at said URI will be replaced by + * clients with the token type ID. + * + * For example, the `https://token-cdn-domain/\{id\}.json` URI would be + * interpreted by clients as + * `https://token-cdn-domain/000000000000000000000000000000000000000000000000000000000004cce0.json` + * for token type ID 0x4cce0. + * + * See {uri}. + * + * Because these URIs cannot be meaningfully represented by the {URI} event, + * this function emits no events. + */ + function _setURI(string memory newuri) internal virtual { + _uri = newuri; + } + + /** + * @dev Creates `amount` tokens of token type `id`, and assigns them to `to`. + * + * Emits a {TransferSingle} event. + * + * Requirements: + * + * - `to` cannot be the zero address. + * - If `to` refers to a smart contract, it must implement {IERC1155Receiver-onERC1155Received} and return the + * acceptance magic value. + */ + function _mint(address to, uint256 id, uint256 amount, bytes memory data) internal virtual { + require(to != address(0), "ERC1155: mint to the zero address"); + + address operator = _msgSender(); + uint256[] memory ids = _asSingletonArray(id); + uint256[] memory amounts = _asSingletonArray(amount); + + _beforeTokenTransfer(operator, address(0), to, ids, amounts, data); + + _balances[id][to] += amount; + emit TransferSingle(operator, address(0), to, id, amount); + + _afterTokenTransfer(operator, address(0), to, ids, amounts, data); + + _doSafeTransferAcceptanceCheck(operator, address(0), to, id, amount, data); + } + + /** + * @dev xref:ROOT:erc1155.adoc#batch-operations[Batched] version of {_mint}. + * + * Emits a {TransferBatch} event. + * + * Requirements: + * + * - `ids` and `amounts` must have the same length. + * - If `to` refers to a smart contract, it must implement {IERC1155Receiver-onERC1155BatchReceived} and return the + * acceptance magic value. + */ + function _mintBatch( + address to, + uint256[] memory ids, + uint256[] memory amounts, + bytes memory data + ) internal virtual { + require(to != address(0), "ERC1155: mint to the zero address"); + require(ids.length == amounts.length, "ERC1155: ids and amounts length mismatch"); + + address operator = _msgSender(); + + _beforeTokenTransfer(operator, address(0), to, ids, amounts, data); + + for (uint256 i = 0; i < ids.length; i++) { + _balances[ids[i]][to] += amounts[i]; + } + + emit TransferBatch(operator, address(0), to, ids, amounts); + + _afterTokenTransfer(operator, address(0), to, ids, amounts, data); + + _doSafeBatchTransferAcceptanceCheck(operator, address(0), to, ids, amounts, data); + } + + /** + * @dev Destroys `amount` tokens of token type `id` from `from` + * + * Emits a {TransferSingle} event. + * + * Requirements: + * + * - `from` cannot be the zero address. + * - `from` must have at least `amount` tokens of token type `id`. + */ + function _burn(address from, uint256 id, uint256 amount) internal virtual { + require(from != address(0), "ERC1155: burn from the zero address"); + + address operator = _msgSender(); + uint256[] memory ids = _asSingletonArray(id); + uint256[] memory amounts = _asSingletonArray(amount); + + _beforeTokenTransfer(operator, from, address(0), ids, amounts, ""); + + uint256 fromBalance = _balances[id][from]; + require(fromBalance >= amount, "ERC1155: burn amount exceeds balance"); + unchecked { + _balances[id][from] = fromBalance - amount; + } + + emit TransferSingle(operator, from, address(0), id, amount); + + _afterTokenTransfer(operator, from, address(0), ids, amounts, ""); + } + + /** + * @dev xref:ROOT:erc1155.adoc#batch-operations[Batched] version of {_burn}. + * + * Emits a {TransferBatch} event. + * + * Requirements: + * + * - `ids` and `amounts` must have the same length. + */ + function _burnBatch(address from, uint256[] memory ids, uint256[] memory amounts) internal virtual { + require(from != address(0), "ERC1155: burn from the zero address"); + require(ids.length == amounts.length, "ERC1155: ids and amounts length mismatch"); + + address operator = _msgSender(); + + _beforeTokenTransfer(operator, from, address(0), ids, amounts, ""); + + for (uint256 i = 0; i < ids.length; i++) { + uint256 id = ids[i]; + uint256 amount = amounts[i]; + + uint256 fromBalance = _balances[id][from]; + require(fromBalance >= amount, "ERC1155: burn amount exceeds balance"); + unchecked { + _balances[id][from] = fromBalance - amount; + } + } + + emit TransferBatch(operator, from, address(0), ids, amounts); + + _afterTokenTransfer(operator, from, address(0), ids, amounts, ""); + } + + /** + * @dev Approve `operator` to operate on all of `owner` tokens + * + * Emits an {ApprovalForAll} event. + */ + function _setApprovalForAll(address owner, address operator, bool approved) internal virtual { + require(owner != operator, "ERC1155: setting approval status for self"); + _operatorApprovals[owner][operator] = approved; + emit ApprovalForAll(owner, operator, approved); + } + + /** + * @dev Hook that is called before any token transfer. This includes minting + * and burning, as well as batched variants. + * + * The same hook is called on both single and batched variants. For single + * transfers, the length of the `ids` and `amounts` arrays will be 1. + * + * Calling conditions (for each `id` and `amount` pair): + * + * - When `from` and `to` are both non-zero, `amount` of ``from``'s tokens + * of token type `id` will be transferred to `to`. + * - When `from` is zero, `amount` tokens of token type `id` will be minted + * for `to`. + * - when `to` is zero, `amount` of ``from``'s tokens of token type `id` + * will be burned. + * - `from` and `to` are never both zero. + * - `ids` and `amounts` have the same, non-zero length. + * + * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks]. + */ + function _beforeTokenTransfer( + address operator, + address from, + address to, + uint256[] memory ids, + uint256[] memory amounts, + bytes memory data + ) internal virtual {} + + /** + * @dev Hook that is called after any token transfer. This includes minting + * and burning, as well as batched variants. + * + * The same hook is called on both single and batched variants. For single + * transfers, the length of the `id` and `amount` arrays will be 1. + * + * Calling conditions (for each `id` and `amount` pair): + * + * - When `from` and `to` are both non-zero, `amount` of ``from``'s tokens + * of token type `id` will be transferred to `to`. + * - When `from` is zero, `amount` tokens of token type `id` will be minted + * for `to`. + * - when `to` is zero, `amount` of ``from``'s tokens of token type `id` + * will be burned. + * - `from` and `to` are never both zero. + * - `ids` and `amounts` have the same, non-zero length. + * + * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks]. + */ + function _afterTokenTransfer( + address operator, + address from, + address to, + uint256[] memory ids, + uint256[] memory amounts, + bytes memory data + ) internal virtual {} + + function _doSafeTransferAcceptanceCheck( + address operator, + address from, + address to, + uint256 id, + uint256 amount, + bytes memory data + ) private { + if (to.isContract()) { + try IERC1155Receiver(to).onERC1155Received(operator, from, id, amount, data) returns (bytes4 response) { + if (response != IERC1155Receiver.onERC1155Received.selector) { + revert("ERC1155: ERC1155Receiver rejected tokens"); + } + } catch Error(string memory reason) { + revert(reason); + } catch { + revert("ERC1155: transfer to non-ERC1155Receiver implementer"); + } + } + } + + function _doSafeBatchTransferAcceptanceCheck( + address operator, + address from, + address to, + uint256[] memory ids, + uint256[] memory amounts, + bytes memory data + ) private { + if (to.isContract()) { + try IERC1155Receiver(to).onERC1155BatchReceived(operator, from, ids, amounts, data) returns ( + bytes4 response + ) { + if (response != IERC1155Receiver.onERC1155BatchReceived.selector) { + revert("ERC1155: ERC1155Receiver rejected tokens"); + } + } catch Error(string memory reason) { + revert(reason); + } catch { + revert("ERC1155: transfer to non-ERC1155Receiver implementer"); + } + } + } + + function _asSingletonArray(uint256 element) private pure returns (uint256[] memory) { + uint256[] memory array = new uint256[](1); + array[0] = element; + + return array; + } +} diff --git a/lib/openzeppelin-contracts/contracts/token/ERC1155/IERC1155.sol b/lib/openzeppelin-contracts/contracts/token/ERC1155/IERC1155.sol new file mode 100644 index 0000000..eae0b70 --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/token/ERC1155/IERC1155.sol @@ -0,0 +1,119 @@ +// SPDX-License-Identifier: MIT +// OpenZeppelin Contracts (last updated v4.7.0) (token/ERC1155/IERC1155.sol) + +pragma solidity ^0.8.0; + +import "../../utils/introspection/IERC165.sol"; + +/** + * @dev Required interface of an ERC1155 compliant contract, as defined in the + * https://eips.ethereum.org/EIPS/eip-1155[EIP]. + * + * _Available since v3.1._ + */ +interface IERC1155 is IERC165 { + /** + * @dev Emitted when `value` tokens of token type `id` are transferred from `from` to `to` by `operator`. + */ + event TransferSingle(address indexed operator, address indexed from, address indexed to, uint256 id, uint256 value); + + /** + * @dev Equivalent to multiple {TransferSingle} events, where `operator`, `from` and `to` are the same for all + * transfers. + */ + event TransferBatch( + address indexed operator, + address indexed from, + address indexed to, + uint256[] ids, + uint256[] values + ); + + /** + * @dev Emitted when `account` grants or revokes permission to `operator` to transfer their tokens, according to + * `approved`. + */ + event ApprovalForAll(address indexed account, address indexed operator, bool approved); + + /** + * @dev Emitted when the URI for token type `id` changes to `value`, if it is a non-programmatic URI. + * + * If an {URI} event was emitted for `id`, the standard + * https://eips.ethereum.org/EIPS/eip-1155#metadata-extensions[guarantees] that `value` will equal the value + * returned by {IERC1155MetadataURI-uri}. + */ + event URI(string value, uint256 indexed id); + + /** + * @dev Returns the amount of tokens of token type `id` owned by `account`. + * + * Requirements: + * + * - `account` cannot be the zero address. + */ + function balanceOf(address account, uint256 id) external view returns (uint256); + + /** + * @dev xref:ROOT:erc1155.adoc#batch-operations[Batched] version of {balanceOf}. + * + * Requirements: + * + * - `accounts` and `ids` must have the same length. + */ + function balanceOfBatch( + address[] calldata accounts, + uint256[] calldata ids + ) external view returns (uint256[] memory); + + /** + * @dev Grants or revokes permission to `operator` to transfer the caller's tokens, according to `approved`, + * + * Emits an {ApprovalForAll} event. + * + * Requirements: + * + * - `operator` cannot be the caller. + */ + function setApprovalForAll(address operator, bool approved) external; + + /** + * @dev Returns true if `operator` is approved to transfer ``account``'s tokens. + * + * See {setApprovalForAll}. + */ + function isApprovedForAll(address account, address operator) external view returns (bool); + + /** + * @dev Transfers `amount` tokens of token type `id` from `from` to `to`. + * + * Emits a {TransferSingle} event. + * + * Requirements: + * + * - `to` cannot be the zero address. + * - If the caller is not `from`, it must have been approved to spend ``from``'s tokens via {setApprovalForAll}. + * - `from` must have a balance of tokens of type `id` of at least `amount`. + * - If `to` refers to a smart contract, it must implement {IERC1155Receiver-onERC1155Received} and return the + * acceptance magic value. + */ + function safeTransferFrom(address from, address to, uint256 id, uint256 amount, bytes calldata data) external; + + /** + * @dev xref:ROOT:erc1155.adoc#batch-operations[Batched] version of {safeTransferFrom}. + * + * Emits a {TransferBatch} event. + * + * Requirements: + * + * - `ids` and `amounts` must have the same length. + * - If `to` refers to a smart contract, it must implement {IERC1155Receiver-onERC1155BatchReceived} and return the + * acceptance magic value. + */ + function safeBatchTransferFrom( + address from, + address to, + uint256[] calldata ids, + uint256[] calldata amounts, + bytes calldata data + ) external; +} diff --git a/lib/openzeppelin-contracts/contracts/token/ERC1155/IERC1155Receiver.sol b/lib/openzeppelin-contracts/contracts/token/ERC1155/IERC1155Receiver.sol new file mode 100644 index 0000000..0dd271d --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/token/ERC1155/IERC1155Receiver.sol @@ -0,0 +1,58 @@ +// SPDX-License-Identifier: MIT +// OpenZeppelin Contracts (last updated v4.5.0) (token/ERC1155/IERC1155Receiver.sol) + +pragma solidity ^0.8.0; + +import "../../utils/introspection/IERC165.sol"; + +/** + * @dev _Available since v3.1._ + */ +interface IERC1155Receiver is IERC165 { + /** + * @dev Handles the receipt of a single ERC1155 token type. This function is + * called at the end of a `safeTransferFrom` after the balance has been updated. + * + * NOTE: To accept the transfer, this must return + * `bytes4(keccak256("onERC1155Received(address,address,uint256,uint256,bytes)"))` + * (i.e. 0xf23a6e61, or its own function selector). + * + * @param operator The address which initiated the transfer (i.e. msg.sender) + * @param from The address which previously owned the token + * @param id The ID of the token being transferred + * @param value The amount of tokens being transferred + * @param data Additional data with no specified format + * @return `bytes4(keccak256("onERC1155Received(address,address,uint256,uint256,bytes)"))` if transfer is allowed + */ + function onERC1155Received( + address operator, + address from, + uint256 id, + uint256 value, + bytes calldata data + ) external returns (bytes4); + + /** + * @dev Handles the receipt of a multiple ERC1155 token types. This function + * is called at the end of a `safeBatchTransferFrom` after the balances have + * been updated. + * + * NOTE: To accept the transfer(s), this must return + * `bytes4(keccak256("onERC1155BatchReceived(address,address,uint256[],uint256[],bytes)"))` + * (i.e. 0xbc197c81, or its own function selector). + * + * @param operator The address which initiated the batch transfer (i.e. msg.sender) + * @param from The address which previously owned the token + * @param ids An array containing ids of each token being transferred (order and length must match values array) + * @param values An array containing amounts of each token being transferred (order and length must match ids array) + * @param data Additional data with no specified format + * @return `bytes4(keccak256("onERC1155BatchReceived(address,address,uint256[],uint256[],bytes)"))` if transfer is allowed + */ + function onERC1155BatchReceived( + address operator, + address from, + uint256[] calldata ids, + uint256[] calldata values, + bytes calldata data + ) external returns (bytes4); +} diff --git a/lib/openzeppelin-contracts/contracts/token/ERC1155/README.adoc b/lib/openzeppelin-contracts/contracts/token/ERC1155/README.adoc new file mode 100644 index 0000000..13ffbdb --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/token/ERC1155/README.adoc @@ -0,0 +1,49 @@ += ERC 1155 + +[.readme-notice] +NOTE: This document is better viewed at https://docs.openzeppelin.com/contracts/api/token/erc1155 + +This set of interfaces and contracts are all related to the https://eips.ethereum.org/EIPS/eip-1155[ERC1155 Multi Token Standard]. + +The EIP consists of three interfaces which fulfill different roles, found here as {IERC1155}, {IERC1155MetadataURI} and {IERC1155Receiver}. + +{ERC1155} implements the mandatory {IERC1155} interface, as well as the optional extension {IERC1155MetadataURI}, by relying on the substitution mechanism to use the same URI for all token types, dramatically reducing gas costs. + +Additionally there are multiple custom extensions, including: + +* designation of addresses that can pause token transfers for all users ({ERC1155Pausable}). +* destruction of own tokens ({ERC1155Burnable}). + +NOTE: This core set of contracts is designed to be unopinionated, allowing developers to access the internal functions in ERC1155 (such as <>) and expose them as external functions in the way they prefer. On the other hand, xref:ROOT:erc1155.adoc#Presets[ERC1155 Presets] (such as {ERC1155PresetMinterPauser}) are designed using opinionated patterns to provide developers with ready to use, deployable contracts. + +== Core + +{{IERC1155}} + +{{IERC1155MetadataURI}} + +{{ERC1155}} + +{{IERC1155Receiver}} + +{{ERC1155Receiver}} + +== Extensions + +{{ERC1155Pausable}} + +{{ERC1155Burnable}} + +{{ERC1155Supply}} + +{{ERC1155URIStorage}} + +== Presets + +These contracts are preconfigured combinations of the above features. They can be used through inheritance or as models to copy and paste their source code. + +{{ERC1155PresetMinterPauser}} + +== Utilities + +{{ERC1155Holder}} diff --git a/lib/openzeppelin-contracts/contracts/token/ERC1155/extensions/ERC1155Burnable.sol b/lib/openzeppelin-contracts/contracts/token/ERC1155/extensions/ERC1155Burnable.sol new file mode 100644 index 0000000..cc81957 --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/token/ERC1155/extensions/ERC1155Burnable.sol @@ -0,0 +1,32 @@ +// SPDX-License-Identifier: MIT +// OpenZeppelin Contracts (last updated v4.8.0) (token/ERC1155/extensions/ERC1155Burnable.sol) + +pragma solidity ^0.8.0; + +import "../ERC1155.sol"; + +/** + * @dev Extension of {ERC1155} that allows token holders to destroy both their + * own tokens and those that they have been approved to use. + * + * _Available since v3.1._ + */ +abstract contract ERC1155Burnable is ERC1155 { + function burn(address account, uint256 id, uint256 value) public virtual { + require( + account == _msgSender() || isApprovedForAll(account, _msgSender()), + "ERC1155: caller is not token owner or approved" + ); + + _burn(account, id, value); + } + + function burnBatch(address account, uint256[] memory ids, uint256[] memory values) public virtual { + require( + account == _msgSender() || isApprovedForAll(account, _msgSender()), + "ERC1155: caller is not token owner or approved" + ); + + _burnBatch(account, ids, values); + } +} diff --git a/lib/openzeppelin-contracts/contracts/token/ERC1155/extensions/ERC1155Pausable.sol b/lib/openzeppelin-contracts/contracts/token/ERC1155/extensions/ERC1155Pausable.sol new file mode 100644 index 0000000..64790e2 --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/token/ERC1155/extensions/ERC1155Pausable.sol @@ -0,0 +1,38 @@ +// SPDX-License-Identifier: MIT +// OpenZeppelin Contracts v4.4.1 (token/ERC1155/extensions/ERC1155Pausable.sol) + +pragma solidity ^0.8.0; + +import "../ERC1155.sol"; +import "../../../security/Pausable.sol"; + +/** + * @dev ERC1155 token with pausable token transfers, minting and burning. + * + * Useful for scenarios such as preventing trades until the end of an evaluation + * period, or having an emergency switch for freezing all token transfers in the + * event of a large bug. + * + * _Available since v3.1._ + */ +abstract contract ERC1155Pausable is ERC1155, Pausable { + /** + * @dev See {ERC1155-_beforeTokenTransfer}. + * + * Requirements: + * + * - the contract must not be paused. + */ + function _beforeTokenTransfer( + address operator, + address from, + address to, + uint256[] memory ids, + uint256[] memory amounts, + bytes memory data + ) internal virtual override { + super._beforeTokenTransfer(operator, from, to, ids, amounts, data); + + require(!paused(), "ERC1155Pausable: token transfer while paused"); + } +} diff --git a/lib/openzeppelin-contracts/contracts/token/ERC1155/extensions/ERC1155Supply.sol b/lib/openzeppelin-contracts/contracts/token/ERC1155/extensions/ERC1155Supply.sol new file mode 100644 index 0000000..ec24389 --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/token/ERC1155/extensions/ERC1155Supply.sol @@ -0,0 +1,64 @@ +// SPDX-License-Identifier: MIT +// OpenZeppelin Contracts (last updated v4.6.0) (token/ERC1155/extensions/ERC1155Supply.sol) + +pragma solidity ^0.8.0; + +import "../ERC1155.sol"; + +/** + * @dev Extension of ERC1155 that adds tracking of total supply per id. + * + * Useful for scenarios where Fungible and Non-fungible tokens have to be + * clearly identified. Note: While a totalSupply of 1 might mean the + * corresponding is an NFT, there is no guarantees that no other token with the + * same id are not going to be minted. + */ +abstract contract ERC1155Supply is ERC1155 { + mapping(uint256 => uint256) private _totalSupply; + + /** + * @dev Total amount of tokens in with a given id. + */ + function totalSupply(uint256 id) public view virtual returns (uint256) { + return _totalSupply[id]; + } + + /** + * @dev Indicates whether any token exist with a given id, or not. + */ + function exists(uint256 id) public view virtual returns (bool) { + return ERC1155Supply.totalSupply(id) > 0; + } + + /** + * @dev See {ERC1155-_beforeTokenTransfer}. + */ + function _beforeTokenTransfer( + address operator, + address from, + address to, + uint256[] memory ids, + uint256[] memory amounts, + bytes memory data + ) internal virtual override { + super._beforeTokenTransfer(operator, from, to, ids, amounts, data); + + if (from == address(0)) { + for (uint256 i = 0; i < ids.length; ++i) { + _totalSupply[ids[i]] += amounts[i]; + } + } + + if (to == address(0)) { + for (uint256 i = 0; i < ids.length; ++i) { + uint256 id = ids[i]; + uint256 amount = amounts[i]; + uint256 supply = _totalSupply[id]; + require(supply >= amount, "ERC1155: burn amount exceeds totalSupply"); + unchecked { + _totalSupply[id] = supply - amount; + } + } + } + } +} diff --git a/lib/openzeppelin-contracts/contracts/token/ERC1155/extensions/ERC1155URIStorage.sol b/lib/openzeppelin-contracts/contracts/token/ERC1155/extensions/ERC1155URIStorage.sol new file mode 100644 index 0000000..623504f --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/token/ERC1155/extensions/ERC1155URIStorage.sol @@ -0,0 +1,63 @@ +// SPDX-License-Identifier: MIT +// OpenZeppelin Contracts (last updated v4.6.0) (token/ERC1155/extensions/ERC1155URIStorage.sol) + +pragma solidity ^0.8.0; + +import "../../../utils/Strings.sol"; +import "../ERC1155.sol"; + +/** + * @dev ERC1155 token with storage based token URI management. + * Inspired by the ERC721URIStorage extension + * + * _Available since v4.6._ + */ +abstract contract ERC1155URIStorage is ERC1155 { + using Strings for uint256; + + // Optional base URI + string private _baseURI = ""; + + // Optional mapping for token URIs + mapping(uint256 => string) private _tokenURIs; + + /** + * @dev See {IERC1155MetadataURI-uri}. + * + * This implementation returns the concatenation of the `_baseURI` + * and the token-specific uri if the latter is set + * + * This enables the following behaviors: + * + * - if `_tokenURIs[tokenId]` is set, then the result is the concatenation + * of `_baseURI` and `_tokenURIs[tokenId]` (keep in mind that `_baseURI` + * is empty per default); + * + * - if `_tokenURIs[tokenId]` is NOT set then we fallback to `super.uri()` + * which in most cases will contain `ERC1155._uri`; + * + * - if `_tokenURIs[tokenId]` is NOT set, and if the parents do not have a + * uri value set, then the result is empty. + */ + function uri(uint256 tokenId) public view virtual override returns (string memory) { + string memory tokenURI = _tokenURIs[tokenId]; + + // If token URI is set, concatenate base URI and tokenURI (via abi.encodePacked). + return bytes(tokenURI).length > 0 ? string(abi.encodePacked(_baseURI, tokenURI)) : super.uri(tokenId); + } + + /** + * @dev Sets `tokenURI` as the tokenURI of `tokenId`. + */ + function _setURI(uint256 tokenId, string memory tokenURI) internal virtual { + _tokenURIs[tokenId] = tokenURI; + emit URI(uri(tokenId), tokenId); + } + + /** + * @dev Sets `baseURI` as the `_baseURI` for all tokens + */ + function _setBaseURI(string memory baseURI) internal virtual { + _baseURI = baseURI; + } +} diff --git a/lib/openzeppelin-contracts/contracts/token/ERC1155/extensions/IERC1155MetadataURI.sol b/lib/openzeppelin-contracts/contracts/token/ERC1155/extensions/IERC1155MetadataURI.sol new file mode 100644 index 0000000..520a297 --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/token/ERC1155/extensions/IERC1155MetadataURI.sol @@ -0,0 +1,22 @@ +// SPDX-License-Identifier: MIT +// OpenZeppelin Contracts v4.4.1 (token/ERC1155/extensions/IERC1155MetadataURI.sol) + +pragma solidity ^0.8.0; + +import "../IERC1155.sol"; + +/** + * @dev Interface of the optional ERC1155MetadataExtension interface, as defined + * in the https://eips.ethereum.org/EIPS/eip-1155#metadata-extensions[EIP]. + * + * _Available since v3.1._ + */ +interface IERC1155MetadataURI is IERC1155 { + /** + * @dev Returns the URI for token type `id`. + * + * If the `\{id\}` substring is present in the URI, it must be replaced by + * clients with the actual token type ID. + */ + function uri(uint256 id) external view returns (string memory); +} diff --git a/lib/openzeppelin-contracts/contracts/token/ERC1155/presets/ERC1155PresetMinterPauser.sol b/lib/openzeppelin-contracts/contracts/token/ERC1155/presets/ERC1155PresetMinterPauser.sol new file mode 100644 index 0000000..fd7729a --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/token/ERC1155/presets/ERC1155PresetMinterPauser.sol @@ -0,0 +1,114 @@ +// SPDX-License-Identifier: MIT +// OpenZeppelin Contracts (last updated v4.5.0) (token/ERC1155/presets/ERC1155PresetMinterPauser.sol) + +pragma solidity ^0.8.0; + +import "../ERC1155.sol"; +import "../extensions/ERC1155Burnable.sol"; +import "../extensions/ERC1155Pausable.sol"; +import "../../../access/AccessControlEnumerable.sol"; +import "../../../utils/Context.sol"; + +/** + * @dev {ERC1155} token, including: + * + * - ability for holders to burn (destroy) their tokens + * - a minter role that allows for token minting (creation) + * - a pauser role that allows to stop all token transfers + * + * This contract uses {AccessControl} to lock permissioned functions using the + * different roles - head to its documentation for details. + * + * The account that deploys the contract will be granted the minter and pauser + * roles, as well as the default admin role, which will let it grant both minter + * and pauser roles to other accounts. + * + * _Deprecated in favor of https://wizard.openzeppelin.com/[Contracts Wizard]._ + */ +contract ERC1155PresetMinterPauser is Context, AccessControlEnumerable, ERC1155Burnable, ERC1155Pausable { + bytes32 public constant MINTER_ROLE = keccak256("MINTER_ROLE"); + bytes32 public constant PAUSER_ROLE = keccak256("PAUSER_ROLE"); + + /** + * @dev Grants `DEFAULT_ADMIN_ROLE`, `MINTER_ROLE`, and `PAUSER_ROLE` to the account that + * deploys the contract. + */ + constructor(string memory uri) ERC1155(uri) { + _setupRole(DEFAULT_ADMIN_ROLE, _msgSender()); + + _setupRole(MINTER_ROLE, _msgSender()); + _setupRole(PAUSER_ROLE, _msgSender()); + } + + /** + * @dev Creates `amount` new tokens for `to`, of token type `id`. + * + * See {ERC1155-_mint}. + * + * Requirements: + * + * - the caller must have the `MINTER_ROLE`. + */ + function mint(address to, uint256 id, uint256 amount, bytes memory data) public virtual { + require(hasRole(MINTER_ROLE, _msgSender()), "ERC1155PresetMinterPauser: must have minter role to mint"); + + _mint(to, id, amount, data); + } + + /** + * @dev xref:ROOT:erc1155.adoc#batch-operations[Batched] variant of {mint}. + */ + function mintBatch(address to, uint256[] memory ids, uint256[] memory amounts, bytes memory data) public virtual { + require(hasRole(MINTER_ROLE, _msgSender()), "ERC1155PresetMinterPauser: must have minter role to mint"); + + _mintBatch(to, ids, amounts, data); + } + + /** + * @dev Pauses all token transfers. + * + * See {ERC1155Pausable} and {Pausable-_pause}. + * + * Requirements: + * + * - the caller must have the `PAUSER_ROLE`. + */ + function pause() public virtual { + require(hasRole(PAUSER_ROLE, _msgSender()), "ERC1155PresetMinterPauser: must have pauser role to pause"); + _pause(); + } + + /** + * @dev Unpauses all token transfers. + * + * See {ERC1155Pausable} and {Pausable-_unpause}. + * + * Requirements: + * + * - the caller must have the `PAUSER_ROLE`. + */ + function unpause() public virtual { + require(hasRole(PAUSER_ROLE, _msgSender()), "ERC1155PresetMinterPauser: must have pauser role to unpause"); + _unpause(); + } + + /** + * @dev See {IERC165-supportsInterface}. + */ + function supportsInterface( + bytes4 interfaceId + ) public view virtual override(AccessControlEnumerable, ERC1155) returns (bool) { + return super.supportsInterface(interfaceId); + } + + function _beforeTokenTransfer( + address operator, + address from, + address to, + uint256[] memory ids, + uint256[] memory amounts, + bytes memory data + ) internal virtual override(ERC1155, ERC1155Pausable) { + super._beforeTokenTransfer(operator, from, to, ids, amounts, data); + } +} diff --git a/lib/openzeppelin-contracts/contracts/token/ERC1155/presets/README.md b/lib/openzeppelin-contracts/contracts/token/ERC1155/presets/README.md new file mode 100644 index 0000000..468200b --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/token/ERC1155/presets/README.md @@ -0,0 +1 @@ +Contract presets are now deprecated in favor of [Contracts Wizard](https://wizard.openzeppelin.com/) as a more powerful alternative. diff --git a/lib/openzeppelin-contracts/contracts/token/ERC1155/utils/ERC1155Holder.sol b/lib/openzeppelin-contracts/contracts/token/ERC1155/utils/ERC1155Holder.sol new file mode 100644 index 0000000..7249de8 --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/token/ERC1155/utils/ERC1155Holder.sol @@ -0,0 +1,36 @@ +// SPDX-License-Identifier: MIT +// OpenZeppelin Contracts (last updated v4.5.0) (token/ERC1155/utils/ERC1155Holder.sol) + +pragma solidity ^0.8.0; + +import "./ERC1155Receiver.sol"; + +/** + * Simple implementation of `ERC1155Receiver` that will allow a contract to hold ERC1155 tokens. + * + * IMPORTANT: When inheriting this contract, you must include a way to use the received tokens, otherwise they will be + * stuck. + * + * @dev _Available since v3.1._ + */ +contract ERC1155Holder is ERC1155Receiver { + function onERC1155Received( + address, + address, + uint256, + uint256, + bytes memory + ) public virtual override returns (bytes4) { + return this.onERC1155Received.selector; + } + + function onERC1155BatchReceived( + address, + address, + uint256[] memory, + uint256[] memory, + bytes memory + ) public virtual override returns (bytes4) { + return this.onERC1155BatchReceived.selector; + } +} diff --git a/lib/openzeppelin-contracts/contracts/token/ERC1155/utils/ERC1155Receiver.sol b/lib/openzeppelin-contracts/contracts/token/ERC1155/utils/ERC1155Receiver.sol new file mode 100644 index 0000000..2e6804a --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/token/ERC1155/utils/ERC1155Receiver.sol @@ -0,0 +1,19 @@ +// SPDX-License-Identifier: MIT +// OpenZeppelin Contracts v4.4.1 (token/ERC1155/utils/ERC1155Receiver.sol) + +pragma solidity ^0.8.0; + +import "../IERC1155Receiver.sol"; +import "../../../utils/introspection/ERC165.sol"; + +/** + * @dev _Available since v3.1._ + */ +abstract contract ERC1155Receiver is ERC165, IERC1155Receiver { + /** + * @dev See {IERC165-supportsInterface}. + */ + function supportsInterface(bytes4 interfaceId) public view virtual override(ERC165, IERC165) returns (bool) { + return interfaceId == type(IERC1155Receiver).interfaceId || super.supportsInterface(interfaceId); + } +} diff --git a/lib/openzeppelin-contracts/contracts/token/ERC20/ERC20.sol b/lib/openzeppelin-contracts/contracts/token/ERC20/ERC20.sol new file mode 100644 index 0000000..7c53c69 --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/token/ERC20/ERC20.sol @@ -0,0 +1,365 @@ +// SPDX-License-Identifier: MIT +// OpenZeppelin Contracts (last updated v4.8.0) (token/ERC20/ERC20.sol) + +pragma solidity ^0.8.0; + +import "./IERC20.sol"; +import "./extensions/IERC20Metadata.sol"; +import "../../utils/Context.sol"; + +/** + * @dev Implementation of the {IERC20} interface. + * + * This implementation is agnostic to the way tokens are created. This means + * that a supply mechanism has to be added in a derived contract using {_mint}. + * For a generic mechanism see {ERC20PresetMinterPauser}. + * + * TIP: For a detailed writeup see our guide + * https://forum.openzeppelin.com/t/how-to-implement-erc20-supply-mechanisms/226[How + * to implement supply mechanisms]. + * + * The default value of {decimals} is 18. To change this, you should override + * this function so it returns a different value. + * + * We have followed general OpenZeppelin Contracts guidelines: functions revert + * instead returning `false` on failure. This behavior is nonetheless + * conventional and does not conflict with the expectations of ERC20 + * applications. + * + * Additionally, an {Approval} event is emitted on calls to {transferFrom}. + * This allows applications to reconstruct the allowance for all accounts just + * by listening to said events. Other implementations of the EIP may not emit + * these events, as it isn't required by the specification. + * + * Finally, the non-standard {decreaseAllowance} and {increaseAllowance} + * functions have been added to mitigate the well-known issues around setting + * allowances. See {IERC20-approve}. + */ +contract ERC20 is Context, IERC20, IERC20Metadata { + mapping(address => uint256) private _balances; + + mapping(address => mapping(address => uint256)) private _allowances; + + uint256 private _totalSupply; + + string private _name; + string private _symbol; + + /** + * @dev Sets the values for {name} and {symbol}. + * + * All two of these values are immutable: they can only be set once during + * construction. + */ + constructor(string memory name_, string memory symbol_) { + _name = name_; + _symbol = symbol_; + } + + /** + * @dev Returns the name of the token. + */ + function name() public view virtual override returns (string memory) { + return _name; + } + + /** + * @dev Returns the symbol of the token, usually a shorter version of the + * name. + */ + function symbol() public view virtual override returns (string memory) { + return _symbol; + } + + /** + * @dev Returns the number of decimals used to get its user representation. + * For example, if `decimals` equals `2`, a balance of `505` tokens should + * be displayed to a user as `5.05` (`505 / 10 ** 2`). + * + * Tokens usually opt for a value of 18, imitating the relationship between + * Ether and Wei. This is the default value returned by this function, unless + * it's overridden. + * + * NOTE: This information is only used for _display_ purposes: it in + * no way affects any of the arithmetic of the contract, including + * {IERC20-balanceOf} and {IERC20-transfer}. + */ + function decimals() public view virtual override returns (uint8) { + return 18; + } + + /** + * @dev See {IERC20-totalSupply}. + */ + function totalSupply() public view virtual override returns (uint256) { + return _totalSupply; + } + + /** + * @dev See {IERC20-balanceOf}. + */ + function balanceOf(address account) public view virtual override returns (uint256) { + return _balances[account]; + } + + /** + * @dev See {IERC20-transfer}. + * + * Requirements: + * + * - `to` cannot be the zero address. + * - the caller must have a balance of at least `amount`. + */ + function transfer(address to, uint256 amount) public virtual override returns (bool) { + address owner = _msgSender(); + _transfer(owner, to, amount); + return true; + } + + /** + * @dev See {IERC20-allowance}. + */ + function allowance(address owner, address spender) public view virtual override returns (uint256) { + return _allowances[owner][spender]; + } + + /** + * @dev See {IERC20-approve}. + * + * NOTE: If `amount` is the maximum `uint256`, the allowance is not updated on + * `transferFrom`. This is semantically equivalent to an infinite approval. + * + * Requirements: + * + * - `spender` cannot be the zero address. + */ + function approve(address spender, uint256 amount) public virtual override returns (bool) { + address owner = _msgSender(); + _approve(owner, spender, amount); + return true; + } + + /** + * @dev See {IERC20-transferFrom}. + * + * Emits an {Approval} event indicating the updated allowance. This is not + * required by the EIP. See the note at the beginning of {ERC20}. + * + * NOTE: Does not update the allowance if the current allowance + * is the maximum `uint256`. + * + * Requirements: + * + * - `from` and `to` cannot be the zero address. + * - `from` must have a balance of at least `amount`. + * - the caller must have allowance for ``from``'s tokens of at least + * `amount`. + */ + function transferFrom(address from, address to, uint256 amount) public virtual override returns (bool) { + address spender = _msgSender(); + _spendAllowance(from, spender, amount); + _transfer(from, to, amount); + return true; + } + + /** + * @dev Atomically increases the allowance granted to `spender` by the caller. + * + * This is an alternative to {approve} that can be used as a mitigation for + * problems described in {IERC20-approve}. + * + * Emits an {Approval} event indicating the updated allowance. + * + * Requirements: + * + * - `spender` cannot be the zero address. + */ + function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) { + address owner = _msgSender(); + _approve(owner, spender, allowance(owner, spender) + addedValue); + return true; + } + + /** + * @dev Atomically decreases the allowance granted to `spender` by the caller. + * + * This is an alternative to {approve} that can be used as a mitigation for + * problems described in {IERC20-approve}. + * + * Emits an {Approval} event indicating the updated allowance. + * + * Requirements: + * + * - `spender` cannot be the zero address. + * - `spender` must have allowance for the caller of at least + * `subtractedValue`. + */ + function decreaseAllowance(address spender, uint256 subtractedValue) public virtual returns (bool) { + address owner = _msgSender(); + uint256 currentAllowance = allowance(owner, spender); + require(currentAllowance >= subtractedValue, "ERC20: decreased allowance below zero"); + unchecked { + _approve(owner, spender, currentAllowance - subtractedValue); + } + + return true; + } + + /** + * @dev Moves `amount` of tokens from `from` to `to`. + * + * This internal function is equivalent to {transfer}, and can be used to + * e.g. implement automatic token fees, slashing mechanisms, etc. + * + * Emits a {Transfer} event. + * + * Requirements: + * + * - `from` cannot be the zero address. + * - `to` cannot be the zero address. + * - `from` must have a balance of at least `amount`. + */ + function _transfer(address from, address to, uint256 amount) internal virtual { + require(from != address(0), "ERC20: transfer from the zero address"); + require(to != address(0), "ERC20: transfer to the zero address"); + + _beforeTokenTransfer(from, to, amount); + + uint256 fromBalance = _balances[from]; + require(fromBalance >= amount, "ERC20: transfer amount exceeds balance"); + unchecked { + _balances[from] = fromBalance - amount; + // Overflow not possible: the sum of all balances is capped by totalSupply, and the sum is preserved by + // decrementing then incrementing. + _balances[to] += amount; + } + + emit Transfer(from, to, amount); + + _afterTokenTransfer(from, to, amount); + } + + /** @dev Creates `amount` tokens and assigns them to `account`, increasing + * the total supply. + * + * Emits a {Transfer} event with `from` set to the zero address. + * + * Requirements: + * + * - `account` cannot be the zero address. + */ + function _mint(address account, uint256 amount) internal virtual { + require(account != address(0), "ERC20: mint to the zero address"); + + _beforeTokenTransfer(address(0), account, amount); + + _totalSupply += amount; + unchecked { + // Overflow not possible: balance + amount is at most totalSupply + amount, which is checked above. + _balances[account] += amount; + } + emit Transfer(address(0), account, amount); + + _afterTokenTransfer(address(0), account, amount); + } + + /** + * @dev Destroys `amount` tokens from `account`, reducing the + * total supply. + * + * Emits a {Transfer} event with `to` set to the zero address. + * + * Requirements: + * + * - `account` cannot be the zero address. + * - `account` must have at least `amount` tokens. + */ + function _burn(address account, uint256 amount) internal virtual { + require(account != address(0), "ERC20: burn from the zero address"); + + _beforeTokenTransfer(account, address(0), amount); + + uint256 accountBalance = _balances[account]; + require(accountBalance >= amount, "ERC20: burn amount exceeds balance"); + unchecked { + _balances[account] = accountBalance - amount; + // Overflow not possible: amount <= accountBalance <= totalSupply. + _totalSupply -= amount; + } + + emit Transfer(account, address(0), amount); + + _afterTokenTransfer(account, address(0), amount); + } + + /** + * @dev Sets `amount` as the allowance of `spender` over the `owner` s tokens. + * + * This internal function is equivalent to `approve`, and can be used to + * e.g. set automatic allowances for certain subsystems, etc. + * + * Emits an {Approval} event. + * + * Requirements: + * + * - `owner` cannot be the zero address. + * - `spender` cannot be the zero address. + */ + function _approve(address owner, address spender, uint256 amount) internal virtual { + require(owner != address(0), "ERC20: approve from the zero address"); + require(spender != address(0), "ERC20: approve to the zero address"); + + _allowances[owner][spender] = amount; + emit Approval(owner, spender, amount); + } + + /** + * @dev Updates `owner` s allowance for `spender` based on spent `amount`. + * + * Does not update the allowance amount in case of infinite allowance. + * Revert if not enough allowance is available. + * + * Might emit an {Approval} event. + */ + function _spendAllowance(address owner, address spender, uint256 amount) internal virtual { + uint256 currentAllowance = allowance(owner, spender); + if (currentAllowance != type(uint256).max) { + require(currentAllowance >= amount, "ERC20: insufficient allowance"); + unchecked { + _approve(owner, spender, currentAllowance - amount); + } + } + } + + /** + * @dev Hook that is called before any transfer of tokens. This includes + * minting and burning. + * + * Calling conditions: + * + * - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens + * will be transferred to `to`. + * - when `from` is zero, `amount` tokens will be minted for `to`. + * - when `to` is zero, `amount` of ``from``'s tokens will be burned. + * - `from` and `to` are never both zero. + * + * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks]. + */ + function _beforeTokenTransfer(address from, address to, uint256 amount) internal virtual {} + + /** + * @dev Hook that is called after any transfer of tokens. This includes + * minting and burning. + * + * Calling conditions: + * + * - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens + * has been transferred to `to`. + * - when `from` is zero, `amount` tokens have been minted for `to`. + * - when `to` is zero, `amount` of ``from``'s tokens have been burned. + * - `from` and `to` are never both zero. + * + * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks]. + */ + function _afterTokenTransfer(address from, address to, uint256 amount) internal virtual {} +} diff --git a/lib/openzeppelin-contracts/contracts/token/ERC20/IERC20.sol b/lib/openzeppelin-contracts/contracts/token/ERC20/IERC20.sol new file mode 100644 index 0000000..66c4e4d --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/token/ERC20/IERC20.sol @@ -0,0 +1,78 @@ +// SPDX-License-Identifier: MIT +// OpenZeppelin Contracts (last updated v4.6.0) (token/ERC20/IERC20.sol) + +pragma solidity ^0.8.0; + +/** + * @dev Interface of the ERC20 standard as defined in the EIP. + */ +interface IERC20 { + /** + * @dev Emitted when `value` tokens are moved from one account (`from`) to + * another (`to`). + * + * Note that `value` may be zero. + */ + event Transfer(address indexed from, address indexed to, uint256 value); + + /** + * @dev Emitted when the allowance of a `spender` for an `owner` is set by + * a call to {approve}. `value` is the new allowance. + */ + event Approval(address indexed owner, address indexed spender, uint256 value); + + /** + * @dev Returns the amount of tokens in existence. + */ + function totalSupply() external view returns (uint256); + + /** + * @dev Returns the amount of tokens owned by `account`. + */ + function balanceOf(address account) external view returns (uint256); + + /** + * @dev Moves `amount` tokens from the caller's account to `to`. + * + * Returns a boolean value indicating whether the operation succeeded. + * + * Emits a {Transfer} event. + */ + function transfer(address to, uint256 amount) external returns (bool); + + /** + * @dev Returns the remaining number of tokens that `spender` will be + * allowed to spend on behalf of `owner` through {transferFrom}. This is + * zero by default. + * + * This value changes when {approve} or {transferFrom} are called. + */ + function allowance(address owner, address spender) external view returns (uint256); + + /** + * @dev Sets `amount` as the allowance of `spender` over the caller's tokens. + * + * Returns a boolean value indicating whether the operation succeeded. + * + * IMPORTANT: Beware that changing an allowance with this method brings the risk + * that someone may use both the old and the new allowance by unfortunate + * transaction ordering. One possible solution to mitigate this race + * condition is to first reduce the spender's allowance to 0 and set the + * desired value afterwards: + * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729 + * + * Emits an {Approval} event. + */ + function approve(address spender, uint256 amount) external returns (bool); + + /** + * @dev Moves `amount` tokens from `from` to `to` using the + * allowance mechanism. `amount` is then deducted from the caller's + * allowance. + * + * Returns a boolean value indicating whether the operation succeeded. + * + * Emits a {Transfer} event. + */ + function transferFrom(address from, address to, uint256 amount) external returns (bool); +} diff --git a/lib/openzeppelin-contracts/contracts/token/ERC20/README.adoc b/lib/openzeppelin-contracts/contracts/token/ERC20/README.adoc new file mode 100644 index 0000000..b3f68e5 --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/token/ERC20/README.adoc @@ -0,0 +1,78 @@ += ERC 20 + +[.readme-notice] +NOTE: This document is better viewed at https://docs.openzeppelin.com/contracts/api/token/erc20 + +This set of interfaces, contracts, and utilities are all related to the https://eips.ethereum.org/EIPS/eip-20[ERC20 Token Standard]. + +TIP: For an overview of ERC20 tokens and a walk through on how to create a token contract read our xref:ROOT:erc20.adoc[ERC20 guide]. + +There are a few core contracts that implement the behavior specified in the EIP: + +* {IERC20}: the interface all ERC20 implementations should conform to. +* {IERC20Metadata}: the extended ERC20 interface including the <>, <> and <> functions. +* {ERC20}: the implementation of the ERC20 interface, including the <>, <> and <> optional standard extension to the base interface. + +Additionally there are multiple custom extensions, including: + +* {ERC20Burnable}: destruction of own tokens. +* {ERC20Capped}: enforcement of a cap to the total supply when minting tokens. +* {ERC20Pausable}: ability to pause token transfers. +* {ERC20Snapshot}: efficient storage of past token balances to be later queried at any point in time. +* {ERC20Permit}: gasless approval of tokens (standardized as ERC2612). +* {ERC20FlashMint}: token level support for flash loans through the minting and burning of ephemeral tokens (standardized as ERC3156). +* {ERC20Votes}: support for voting and vote delegation. +* {ERC20VotesComp}: support for voting and vote delegation (compatible with Compound's token, with uint96 restrictions). +* {ERC20Wrapper}: wrapper to create an ERC20 backed by another ERC20, with deposit and withdraw methods. Useful in conjunction with {ERC20Votes}. +* {ERC4626}: tokenized vault that manages shares (represented as ERC20) that are backed by assets (another ERC20). + +Finally, there are some utilities to interact with ERC20 contracts in various ways. + +* {SafeERC20}: a wrapper around the interface that eliminates the need to handle boolean return values. +* {TokenTimelock}: hold tokens for a beneficiary until a specified time. + +NOTE: This core set of contracts is designed to be unopinionated, allowing developers to access the internal functions in ERC20 (such as <>) and expose them as external functions in the way they prefer. On the other hand, xref:ROOT:erc20.adoc#Presets[ERC20 Presets] (such as {ERC20PresetMinterPauser}) are designed using opinionated patterns to provide developers with ready to use, deployable contracts. + +== Core + +{{IERC20}} + +{{IERC20Metadata}} + +{{ERC20}} + +== Extensions + +{{ERC20Burnable}} + +{{ERC20Capped}} + +{{ERC20Pausable}} + +{{ERC20Permit}} + +{{ERC20Snapshot}} + +{{ERC20Votes}} + +{{ERC20VotesComp}} + +{{ERC20Wrapper}} + +{{ERC20FlashMint}} + +{{ERC4626}} + +== Presets + +These contracts are preconfigured combinations of the above features. They can be used through inheritance or as models to copy and paste their source code. + +{{ERC20PresetMinterPauser}} + +{{ERC20PresetFixedSupply}} + +== Utilities + +{{SafeERC20}} + +{{TokenTimelock}} diff --git a/lib/openzeppelin-contracts/contracts/token/ERC20/extensions/ERC20Burnable.sol b/lib/openzeppelin-contracts/contracts/token/ERC20/extensions/ERC20Burnable.sol new file mode 100644 index 0000000..1cd08ee --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/token/ERC20/extensions/ERC20Burnable.sol @@ -0,0 +1,39 @@ +// SPDX-License-Identifier: MIT +// OpenZeppelin Contracts (last updated v4.5.0) (token/ERC20/extensions/ERC20Burnable.sol) + +pragma solidity ^0.8.0; + +import "../ERC20.sol"; +import "../../../utils/Context.sol"; + +/** + * @dev Extension of {ERC20} that allows token holders to destroy both their own + * tokens and those that they have an allowance for, in a way that can be + * recognized off-chain (via event analysis). + */ +abstract contract ERC20Burnable is Context, ERC20 { + /** + * @dev Destroys `amount` tokens from the caller. + * + * See {ERC20-_burn}. + */ + function burn(uint256 amount) public virtual { + _burn(_msgSender(), amount); + } + + /** + * @dev Destroys `amount` tokens from `account`, deducting from the caller's + * allowance. + * + * See {ERC20-_burn} and {ERC20-allowance}. + * + * Requirements: + * + * - the caller must have allowance for ``accounts``'s tokens of at least + * `amount`. + */ + function burnFrom(address account, uint256 amount) public virtual { + _spendAllowance(account, _msgSender(), amount); + _burn(account, amount); + } +} diff --git a/lib/openzeppelin-contracts/contracts/token/ERC20/extensions/ERC20Capped.sol b/lib/openzeppelin-contracts/contracts/token/ERC20/extensions/ERC20Capped.sol new file mode 100644 index 0000000..16f830d --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/token/ERC20/extensions/ERC20Capped.sol @@ -0,0 +1,37 @@ +// SPDX-License-Identifier: MIT +// OpenZeppelin Contracts v4.4.1 (token/ERC20/extensions/ERC20Capped.sol) + +pragma solidity ^0.8.0; + +import "../ERC20.sol"; + +/** + * @dev Extension of {ERC20} that adds a cap to the supply of tokens. + */ +abstract contract ERC20Capped is ERC20 { + uint256 private immutable _cap; + + /** + * @dev Sets the value of the `cap`. This value is immutable, it can only be + * set once during construction. + */ + constructor(uint256 cap_) { + require(cap_ > 0, "ERC20Capped: cap is 0"); + _cap = cap_; + } + + /** + * @dev Returns the cap on the token's total supply. + */ + function cap() public view virtual returns (uint256) { + return _cap; + } + + /** + * @dev See {ERC20-_mint}. + */ + function _mint(address account, uint256 amount) internal virtual override { + require(ERC20.totalSupply() + amount <= cap(), "ERC20Capped: cap exceeded"); + super._mint(account, amount); + } +} diff --git a/lib/openzeppelin-contracts/contracts/token/ERC20/extensions/ERC20FlashMint.sol b/lib/openzeppelin-contracts/contracts/token/ERC20/extensions/ERC20FlashMint.sol new file mode 100644 index 0000000..063fe99 --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/token/ERC20/extensions/ERC20FlashMint.sol @@ -0,0 +1,109 @@ +// SPDX-License-Identifier: MIT +// OpenZeppelin Contracts (last updated v4.8.0) (token/ERC20/extensions/ERC20FlashMint.sol) + +pragma solidity ^0.8.0; + +import "../../../interfaces/IERC3156FlashBorrower.sol"; +import "../../../interfaces/IERC3156FlashLender.sol"; +import "../ERC20.sol"; + +/** + * @dev Implementation of the ERC3156 Flash loans extension, as defined in + * https://eips.ethereum.org/EIPS/eip-3156[ERC-3156]. + * + * Adds the {flashLoan} method, which provides flash loan support at the token + * level. By default there is no fee, but this can be changed by overriding {flashFee}. + * + * _Available since v4.1._ + */ +abstract contract ERC20FlashMint is ERC20, IERC3156FlashLender { + bytes32 private constant _RETURN_VALUE = keccak256("ERC3156FlashBorrower.onFlashLoan"); + + /** + * @dev Returns the maximum amount of tokens available for loan. + * @param token The address of the token that is requested. + * @return The amount of token that can be loaned. + */ + function maxFlashLoan(address token) public view virtual override returns (uint256) { + return token == address(this) ? type(uint256).max - ERC20.totalSupply() : 0; + } + + /** + * @dev Returns the fee applied when doing flash loans. This function calls + * the {_flashFee} function which returns the fee applied when doing flash + * loans. + * @param token The token to be flash loaned. + * @param amount The amount of tokens to be loaned. + * @return The fees applied to the corresponding flash loan. + */ + function flashFee(address token, uint256 amount) public view virtual override returns (uint256) { + require(token == address(this), "ERC20FlashMint: wrong token"); + return _flashFee(token, amount); + } + + /** + * @dev Returns the fee applied when doing flash loans. By default this + * implementation has 0 fees. This function can be overloaded to make + * the flash loan mechanism deflationary. + * @param token The token to be flash loaned. + * @param amount The amount of tokens to be loaned. + * @return The fees applied to the corresponding flash loan. + */ + function _flashFee(address token, uint256 amount) internal view virtual returns (uint256) { + // silence warning about unused variable without the addition of bytecode. + token; + amount; + return 0; + } + + /** + * @dev Returns the receiver address of the flash fee. By default this + * implementation returns the address(0) which means the fee amount will be burnt. + * This function can be overloaded to change the fee receiver. + * @return The address for which the flash fee will be sent to. + */ + function _flashFeeReceiver() internal view virtual returns (address) { + return address(0); + } + + /** + * @dev Performs a flash loan. New tokens are minted and sent to the + * `receiver`, who is required to implement the {IERC3156FlashBorrower} + * interface. By the end of the flash loan, the receiver is expected to own + * amount + fee tokens and have them approved back to the token contract itself so + * they can be burned. + * @param receiver The receiver of the flash loan. Should implement the + * {IERC3156FlashBorrower-onFlashLoan} interface. + * @param token The token to be flash loaned. Only `address(this)` is + * supported. + * @param amount The amount of tokens to be loaned. + * @param data An arbitrary datafield that is passed to the receiver. + * @return `true` if the flash loan was successful. + */ + // This function can reenter, but it doesn't pose a risk because it always preserves the property that the amount + // minted at the beginning is always recovered and burned at the end, or else the entire function will revert. + // slither-disable-next-line reentrancy-no-eth + function flashLoan( + IERC3156FlashBorrower receiver, + address token, + uint256 amount, + bytes calldata data + ) public virtual override returns (bool) { + require(amount <= maxFlashLoan(token), "ERC20FlashMint: amount exceeds maxFlashLoan"); + uint256 fee = flashFee(token, amount); + _mint(address(receiver), amount); + require( + receiver.onFlashLoan(msg.sender, token, amount, fee, data) == _RETURN_VALUE, + "ERC20FlashMint: invalid return value" + ); + address flashFeeReceiver = _flashFeeReceiver(); + _spendAllowance(address(receiver), address(this), amount + fee); + if (fee == 0 || flashFeeReceiver == address(0)) { + _burn(address(receiver), amount + fee); + } else { + _burn(address(receiver), amount); + _transfer(address(receiver), flashFeeReceiver, fee); + } + return true; + } +} diff --git a/lib/openzeppelin-contracts/contracts/token/ERC20/extensions/ERC20Pausable.sol b/lib/openzeppelin-contracts/contracts/token/ERC20/extensions/ERC20Pausable.sol new file mode 100644 index 0000000..d0b224f --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/token/ERC20/extensions/ERC20Pausable.sol @@ -0,0 +1,29 @@ +// SPDX-License-Identifier: MIT +// OpenZeppelin Contracts v4.4.1 (token/ERC20/extensions/ERC20Pausable.sol) + +pragma solidity ^0.8.0; + +import "../ERC20.sol"; +import "../../../security/Pausable.sol"; + +/** + * @dev ERC20 token with pausable token transfers, minting and burning. + * + * Useful for scenarios such as preventing trades until the end of an evaluation + * period, or having an emergency switch for freezing all token transfers in the + * event of a large bug. + */ +abstract contract ERC20Pausable is ERC20, Pausable { + /** + * @dev See {ERC20-_beforeTokenTransfer}. + * + * Requirements: + * + * - the contract must not be paused. + */ + function _beforeTokenTransfer(address from, address to, uint256 amount) internal virtual override { + super._beforeTokenTransfer(from, to, amount); + + require(!paused(), "ERC20Pausable: token transfer while paused"); + } +} diff --git a/lib/openzeppelin-contracts/contracts/token/ERC20/extensions/ERC20Permit.sol b/lib/openzeppelin-contracts/contracts/token/ERC20/extensions/ERC20Permit.sol new file mode 100644 index 0000000..a357199 --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/token/ERC20/extensions/ERC20Permit.sol @@ -0,0 +1,95 @@ +// SPDX-License-Identifier: MIT +// OpenZeppelin Contracts (last updated v4.6.0) (token/ERC20/extensions/ERC20Permit.sol) + +pragma solidity ^0.8.0; + +import "./IERC20Permit.sol"; +import "../ERC20.sol"; +import "../../../utils/cryptography/ECDSA.sol"; +import "../../../utils/cryptography/EIP712.sol"; +import "../../../utils/Counters.sol"; + +/** + * @dev Implementation of the ERC20 Permit extension allowing approvals to be made via signatures, as defined in + * https://eips.ethereum.org/EIPS/eip-2612[EIP-2612]. + * + * Adds the {permit} method, which can be used to change an account's ERC20 allowance (see {IERC20-allowance}) by + * presenting a message signed by the account. By not relying on `{IERC20-approve}`, the token holder account doesn't + * need to send a transaction, and thus is not required to hold Ether at all. + * + * _Available since v3.4._ + */ +abstract contract ERC20Permit is ERC20, IERC20Permit, EIP712 { + using Counters for Counters.Counter; + + mapping(address => Counters.Counter) private _nonces; + + // solhint-disable-next-line var-name-mixedcase + bytes32 private constant _PERMIT_TYPEHASH = + keccak256("Permit(address owner,address spender,uint256 value,uint256 nonce,uint256 deadline)"); + /** + * @dev In previous versions `_PERMIT_TYPEHASH` was declared as `immutable`. + * However, to ensure consistency with the upgradeable transpiler, we will continue + * to reserve a slot. + * @custom:oz-renamed-from _PERMIT_TYPEHASH + */ + // solhint-disable-next-line var-name-mixedcase + bytes32 private _PERMIT_TYPEHASH_DEPRECATED_SLOT; + + /** + * @dev Initializes the {EIP712} domain separator using the `name` parameter, and setting `version` to `"1"`. + * + * It's a good idea to use the same `name` that is defined as the ERC20 token name. + */ + constructor(string memory name) EIP712(name, "1") {} + + /** + * @dev See {IERC20Permit-permit}. + */ + function permit( + address owner, + address spender, + uint256 value, + uint256 deadline, + uint8 v, + bytes32 r, + bytes32 s + ) public virtual override { + require(block.timestamp <= deadline, "ERC20Permit: expired deadline"); + + bytes32 structHash = keccak256(abi.encode(_PERMIT_TYPEHASH, owner, spender, value, _useNonce(owner), deadline)); + + bytes32 hash = _hashTypedDataV4(structHash); + + address signer = ECDSA.recover(hash, v, r, s); + require(signer == owner, "ERC20Permit: invalid signature"); + + _approve(owner, spender, value); + } + + /** + * @dev See {IERC20Permit-nonces}. + */ + function nonces(address owner) public view virtual override returns (uint256) { + return _nonces[owner].current(); + } + + /** + * @dev See {IERC20Permit-DOMAIN_SEPARATOR}. + */ + // solhint-disable-next-line func-name-mixedcase + function DOMAIN_SEPARATOR() external view override returns (bytes32) { + return _domainSeparatorV4(); + } + + /** + * @dev "Consume a nonce": return the current value and increment. + * + * _Available since v4.1._ + */ + function _useNonce(address owner) internal virtual returns (uint256 current) { + Counters.Counter storage nonce = _nonces[owner]; + current = nonce.current(); + nonce.increment(); + } +} diff --git a/lib/openzeppelin-contracts/contracts/token/ERC20/extensions/ERC20Snapshot.sol b/lib/openzeppelin-contracts/contracts/token/ERC20/extensions/ERC20Snapshot.sol new file mode 100644 index 0000000..ee104b0 --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/token/ERC20/extensions/ERC20Snapshot.sol @@ -0,0 +1,191 @@ +// SPDX-License-Identifier: MIT +// OpenZeppelin Contracts (last updated v4.7.0) (token/ERC20/extensions/ERC20Snapshot.sol) + +pragma solidity ^0.8.0; + +import "../ERC20.sol"; +import "../../../utils/Arrays.sol"; +import "../../../utils/Counters.sol"; + +/** + * @dev This contract extends an ERC20 token with a snapshot mechanism. When a snapshot is created, the balances and + * total supply at the time are recorded for later access. + * + * This can be used to safely create mechanisms based on token balances such as trustless dividends or weighted voting. + * In naive implementations it's possible to perform a "double spend" attack by reusing the same balance from different + * accounts. By using snapshots to calculate dividends or voting power, those attacks no longer apply. It can also be + * used to create an efficient ERC20 forking mechanism. + * + * Snapshots are created by the internal {_snapshot} function, which will emit the {Snapshot} event and return a + * snapshot id. To get the total supply at the time of a snapshot, call the function {totalSupplyAt} with the snapshot + * id. To get the balance of an account at the time of a snapshot, call the {balanceOfAt} function with the snapshot id + * and the account address. + * + * NOTE: Snapshot policy can be customized by overriding the {_getCurrentSnapshotId} method. For example, having it + * return `block.number` will trigger the creation of snapshot at the beginning of each new block. When overriding this + * function, be careful about the monotonicity of its result. Non-monotonic snapshot ids will break the contract. + * + * Implementing snapshots for every block using this method will incur significant gas costs. For a gas-efficient + * alternative consider {ERC20Votes}. + * + * ==== Gas Costs + * + * Snapshots are efficient. Snapshot creation is _O(1)_. Retrieval of balances or total supply from a snapshot is _O(log + * n)_ in the number of snapshots that have been created, although _n_ for a specific account will generally be much + * smaller since identical balances in subsequent snapshots are stored as a single entry. + * + * There is a constant overhead for normal ERC20 transfers due to the additional snapshot bookkeeping. This overhead is + * only significant for the first transfer that immediately follows a snapshot for a particular account. Subsequent + * transfers will have normal cost until the next snapshot, and so on. + */ + +abstract contract ERC20Snapshot is ERC20 { + // Inspired by Jordi Baylina's MiniMeToken to record historical balances: + // https://github.com/Giveth/minime/blob/ea04d950eea153a04c51fa510b068b9dded390cb/contracts/MiniMeToken.sol + + using Arrays for uint256[]; + using Counters for Counters.Counter; + + // Snapshotted values have arrays of ids and the value corresponding to that id. These could be an array of a + // Snapshot struct, but that would impede usage of functions that work on an array. + struct Snapshots { + uint256[] ids; + uint256[] values; + } + + mapping(address => Snapshots) private _accountBalanceSnapshots; + Snapshots private _totalSupplySnapshots; + + // Snapshot ids increase monotonically, with the first value being 1. An id of 0 is invalid. + Counters.Counter private _currentSnapshotId; + + /** + * @dev Emitted by {_snapshot} when a snapshot identified by `id` is created. + */ + event Snapshot(uint256 id); + + /** + * @dev Creates a new snapshot and returns its snapshot id. + * + * Emits a {Snapshot} event that contains the same id. + * + * {_snapshot} is `internal` and you have to decide how to expose it externally. Its usage may be restricted to a + * set of accounts, for example using {AccessControl}, or it may be open to the public. + * + * [WARNING] + * ==== + * While an open way of calling {_snapshot} is required for certain trust minimization mechanisms such as forking, + * you must consider that it can potentially be used by attackers in two ways. + * + * First, it can be used to increase the cost of retrieval of values from snapshots, although it will grow + * logarithmically thus rendering this attack ineffective in the long term. Second, it can be used to target + * specific accounts and increase the cost of ERC20 transfers for them, in the ways specified in the Gas Costs + * section above. + * + * We haven't measured the actual numbers; if this is something you're interested in please reach out to us. + * ==== + */ + function _snapshot() internal virtual returns (uint256) { + _currentSnapshotId.increment(); + + uint256 currentId = _getCurrentSnapshotId(); + emit Snapshot(currentId); + return currentId; + } + + /** + * @dev Get the current snapshotId + */ + function _getCurrentSnapshotId() internal view virtual returns (uint256) { + return _currentSnapshotId.current(); + } + + /** + * @dev Retrieves the balance of `account` at the time `snapshotId` was created. + */ + function balanceOfAt(address account, uint256 snapshotId) public view virtual returns (uint256) { + (bool snapshotted, uint256 value) = _valueAt(snapshotId, _accountBalanceSnapshots[account]); + + return snapshotted ? value : balanceOf(account); + } + + /** + * @dev Retrieves the total supply at the time `snapshotId` was created. + */ + function totalSupplyAt(uint256 snapshotId) public view virtual returns (uint256) { + (bool snapshotted, uint256 value) = _valueAt(snapshotId, _totalSupplySnapshots); + + return snapshotted ? value : totalSupply(); + } + + // Update balance and/or total supply snapshots before the values are modified. This is implemented + // in the _beforeTokenTransfer hook, which is executed for _mint, _burn, and _transfer operations. + function _beforeTokenTransfer(address from, address to, uint256 amount) internal virtual override { + super._beforeTokenTransfer(from, to, amount); + + if (from == address(0)) { + // mint + _updateAccountSnapshot(to); + _updateTotalSupplySnapshot(); + } else if (to == address(0)) { + // burn + _updateAccountSnapshot(from); + _updateTotalSupplySnapshot(); + } else { + // transfer + _updateAccountSnapshot(from); + _updateAccountSnapshot(to); + } + } + + function _valueAt(uint256 snapshotId, Snapshots storage snapshots) private view returns (bool, uint256) { + require(snapshotId > 0, "ERC20Snapshot: id is 0"); + require(snapshotId <= _getCurrentSnapshotId(), "ERC20Snapshot: nonexistent id"); + + // When a valid snapshot is queried, there are three possibilities: + // a) The queried value was not modified after the snapshot was taken. Therefore, a snapshot entry was never + // created for this id, and all stored snapshot ids are smaller than the requested one. The value that corresponds + // to this id is the current one. + // b) The queried value was modified after the snapshot was taken. Therefore, there will be an entry with the + // requested id, and its value is the one to return. + // c) More snapshots were created after the requested one, and the queried value was later modified. There will be + // no entry for the requested id: the value that corresponds to it is that of the smallest snapshot id that is + // larger than the requested one. + // + // In summary, we need to find an element in an array, returning the index of the smallest value that is larger if + // it is not found, unless said value doesn't exist (e.g. when all values are smaller). Arrays.findUpperBound does + // exactly this. + + uint256 index = snapshots.ids.findUpperBound(snapshotId); + + if (index == snapshots.ids.length) { + return (false, 0); + } else { + return (true, snapshots.values[index]); + } + } + + function _updateAccountSnapshot(address account) private { + _updateSnapshot(_accountBalanceSnapshots[account], balanceOf(account)); + } + + function _updateTotalSupplySnapshot() private { + _updateSnapshot(_totalSupplySnapshots, totalSupply()); + } + + function _updateSnapshot(Snapshots storage snapshots, uint256 currentValue) private { + uint256 currentId = _getCurrentSnapshotId(); + if (_lastSnapshotId(snapshots.ids) < currentId) { + snapshots.ids.push(currentId); + snapshots.values.push(currentValue); + } + } + + function _lastSnapshotId(uint256[] storage ids) private view returns (uint256) { + if (ids.length == 0) { + return 0; + } else { + return ids[ids.length - 1]; + } + } +} diff --git a/lib/openzeppelin-contracts/contracts/token/ERC20/extensions/ERC20Votes.sol b/lib/openzeppelin-contracts/contracts/token/ERC20/extensions/ERC20Votes.sol new file mode 100644 index 0000000..bf1c2fd --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/token/ERC20/extensions/ERC20Votes.sol @@ -0,0 +1,275 @@ +// SPDX-License-Identifier: MIT +// OpenZeppelin Contracts (last updated v4.8.0) (token/ERC20/extensions/ERC20Votes.sol) + +pragma solidity ^0.8.0; + +import "./ERC20Permit.sol"; +import "../../../utils/math/Math.sol"; +import "../../../governance/utils/IVotes.sol"; +import "../../../utils/math/SafeCast.sol"; +import "../../../utils/cryptography/ECDSA.sol"; + +/** + * @dev Extension of ERC20 to support Compound-like voting and delegation. This version is more generic than Compound's, + * and supports token supply up to 2^224^ - 1, while COMP is limited to 2^96^ - 1. + * + * NOTE: If exact COMP compatibility is required, use the {ERC20VotesComp} variant of this module. + * + * This extension keeps a history (checkpoints) of each account's vote power. Vote power can be delegated either + * by calling the {delegate} function directly, or by providing a signature to be used with {delegateBySig}. Voting + * power can be queried through the public accessors {getVotes} and {getPastVotes}. + * + * By default, token balance does not account for voting power. This makes transfers cheaper. The downside is that it + * requires users to delegate to themselves in order to activate checkpoints and have their voting power tracked. + * + * _Available since v4.2._ + */ +abstract contract ERC20Votes is IVotes, ERC20Permit { + struct Checkpoint { + uint32 fromBlock; + uint224 votes; + } + + bytes32 private constant _DELEGATION_TYPEHASH = + keccak256("Delegation(address delegatee,uint256 nonce,uint256 expiry)"); + + mapping(address => address) private _delegates; + mapping(address => Checkpoint[]) private _checkpoints; + Checkpoint[] private _totalSupplyCheckpoints; + + /** + * @dev Get the `pos`-th checkpoint for `account`. + */ + function checkpoints(address account, uint32 pos) public view virtual returns (Checkpoint memory) { + return _checkpoints[account][pos]; + } + + /** + * @dev Get number of checkpoints for `account`. + */ + function numCheckpoints(address account) public view virtual returns (uint32) { + return SafeCast.toUint32(_checkpoints[account].length); + } + + /** + * @dev Get the address `account` is currently delegating to. + */ + function delegates(address account) public view virtual override returns (address) { + return _delegates[account]; + } + + /** + * @dev Gets the current votes balance for `account` + */ + function getVotes(address account) public view virtual override returns (uint256) { + uint256 pos = _checkpoints[account].length; + unchecked { + return pos == 0 ? 0 : _checkpoints[account][pos - 1].votes; + } + } + + /** + * @dev Retrieve the number of votes for `account` at the end of `blockNumber`. + * + * Requirements: + * + * - `blockNumber` must have been already mined + */ + function getPastVotes(address account, uint256 blockNumber) public view virtual override returns (uint256) { + require(blockNumber < block.number, "ERC20Votes: block not yet mined"); + return _checkpointsLookup(_checkpoints[account], blockNumber); + } + + /** + * @dev Retrieve the `totalSupply` at the end of `blockNumber`. Note, this value is the sum of all balances. + * It is NOT the sum of all the delegated votes! + * + * Requirements: + * + * - `blockNumber` must have been already mined + */ + function getPastTotalSupply(uint256 blockNumber) public view virtual override returns (uint256) { + require(blockNumber < block.number, "ERC20Votes: block not yet mined"); + return _checkpointsLookup(_totalSupplyCheckpoints, blockNumber); + } + + /** + * @dev Lookup a value in a list of (sorted) checkpoints. + */ + function _checkpointsLookup(Checkpoint[] storage ckpts, uint256 blockNumber) private view returns (uint256) { + // We run a binary search to look for the earliest checkpoint taken after `blockNumber`. + // + // Initially we check if the block is recent to narrow the search range. + // During the loop, the index of the wanted checkpoint remains in the range [low-1, high). + // With each iteration, either `low` or `high` is moved towards the middle of the range to maintain the invariant. + // - If the middle checkpoint is after `blockNumber`, we look in [low, mid) + // - If the middle checkpoint is before or equal to `blockNumber`, we look in [mid+1, high) + // Once we reach a single value (when low == high), we've found the right checkpoint at the index high-1, if not + // out of bounds (in which case we're looking too far in the past and the result is 0). + // Note that if the latest checkpoint available is exactly for `blockNumber`, we end up with an index that is + // past the end of the array, so we technically don't find a checkpoint after `blockNumber`, but it works out + // the same. + uint256 length = ckpts.length; + + uint256 low = 0; + uint256 high = length; + + if (length > 5) { + uint256 mid = length - Math.sqrt(length); + if (_unsafeAccess(ckpts, mid).fromBlock > blockNumber) { + high = mid; + } else { + low = mid + 1; + } + } + + while (low < high) { + uint256 mid = Math.average(low, high); + if (_unsafeAccess(ckpts, mid).fromBlock > blockNumber) { + high = mid; + } else { + low = mid + 1; + } + } + + unchecked { + return high == 0 ? 0 : _unsafeAccess(ckpts, high - 1).votes; + } + } + + /** + * @dev Delegate votes from the sender to `delegatee`. + */ + function delegate(address delegatee) public virtual override { + _delegate(_msgSender(), delegatee); + } + + /** + * @dev Delegates votes from signer to `delegatee` + */ + function delegateBySig( + address delegatee, + uint256 nonce, + uint256 expiry, + uint8 v, + bytes32 r, + bytes32 s + ) public virtual override { + require(block.timestamp <= expiry, "ERC20Votes: signature expired"); + address signer = ECDSA.recover( + _hashTypedDataV4(keccak256(abi.encode(_DELEGATION_TYPEHASH, delegatee, nonce, expiry))), + v, + r, + s + ); + require(nonce == _useNonce(signer), "ERC20Votes: invalid nonce"); + _delegate(signer, delegatee); + } + + /** + * @dev Maximum token supply. Defaults to `type(uint224).max` (2^224^ - 1). + */ + function _maxSupply() internal view virtual returns (uint224) { + return type(uint224).max; + } + + /** + * @dev Snapshots the totalSupply after it has been increased. + */ + function _mint(address account, uint256 amount) internal virtual override { + super._mint(account, amount); + require(totalSupply() <= _maxSupply(), "ERC20Votes: total supply risks overflowing votes"); + + _writeCheckpoint(_totalSupplyCheckpoints, _add, amount); + } + + /** + * @dev Snapshots the totalSupply after it has been decreased. + */ + function _burn(address account, uint256 amount) internal virtual override { + super._burn(account, amount); + + _writeCheckpoint(_totalSupplyCheckpoints, _subtract, amount); + } + + /** + * @dev Move voting power when tokens are transferred. + * + * Emits a {IVotes-DelegateVotesChanged} event. + */ + function _afterTokenTransfer(address from, address to, uint256 amount) internal virtual override { + super._afterTokenTransfer(from, to, amount); + + _moveVotingPower(delegates(from), delegates(to), amount); + } + + /** + * @dev Change delegation for `delegator` to `delegatee`. + * + * Emits events {IVotes-DelegateChanged} and {IVotes-DelegateVotesChanged}. + */ + function _delegate(address delegator, address delegatee) internal virtual { + address currentDelegate = delegates(delegator); + uint256 delegatorBalance = balanceOf(delegator); + _delegates[delegator] = delegatee; + + emit DelegateChanged(delegator, currentDelegate, delegatee); + + _moveVotingPower(currentDelegate, delegatee, delegatorBalance); + } + + function _moveVotingPower(address src, address dst, uint256 amount) private { + if (src != dst && amount > 0) { + if (src != address(0)) { + (uint256 oldWeight, uint256 newWeight) = _writeCheckpoint(_checkpoints[src], _subtract, amount); + emit DelegateVotesChanged(src, oldWeight, newWeight); + } + + if (dst != address(0)) { + (uint256 oldWeight, uint256 newWeight) = _writeCheckpoint(_checkpoints[dst], _add, amount); + emit DelegateVotesChanged(dst, oldWeight, newWeight); + } + } + } + + function _writeCheckpoint( + Checkpoint[] storage ckpts, + function(uint256, uint256) view returns (uint256) op, + uint256 delta + ) private returns (uint256 oldWeight, uint256 newWeight) { + uint256 pos = ckpts.length; + + unchecked { + Checkpoint memory oldCkpt = pos == 0 ? Checkpoint(0, 0) : _unsafeAccess(ckpts, pos - 1); + + oldWeight = oldCkpt.votes; + newWeight = op(oldWeight, delta); + + if (pos > 0 && oldCkpt.fromBlock == block.number) { + _unsafeAccess(ckpts, pos - 1).votes = SafeCast.toUint224(newWeight); + } else { + ckpts.push( + Checkpoint({fromBlock: SafeCast.toUint32(block.number), votes: SafeCast.toUint224(newWeight)}) + ); + } + } + } + + function _add(uint256 a, uint256 b) private pure returns (uint256) { + return a + b; + } + + function _subtract(uint256 a, uint256 b) private pure returns (uint256) { + return a - b; + } + + /** + * @dev Access an element of the array without performing bounds check. The position is assumed to be within bounds. + */ + function _unsafeAccess(Checkpoint[] storage ckpts, uint256 pos) private pure returns (Checkpoint storage result) { + assembly { + mstore(0, ckpts.slot) + result.slot := add(keccak256(0, 0x20), pos) + } + } +} diff --git a/lib/openzeppelin-contracts/contracts/token/ERC20/extensions/ERC20VotesComp.sol b/lib/openzeppelin-contracts/contracts/token/ERC20/extensions/ERC20VotesComp.sol new file mode 100644 index 0000000..0461310 --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/token/ERC20/extensions/ERC20VotesComp.sol @@ -0,0 +1,46 @@ +// SPDX-License-Identifier: MIT +// OpenZeppelin Contracts (last updated v4.5.0) (token/ERC20/extensions/ERC20VotesComp.sol) + +pragma solidity ^0.8.0; + +import "./ERC20Votes.sol"; + +/** + * @dev Extension of ERC20 to support Compound's voting and delegation. This version exactly matches Compound's + * interface, with the drawback of only supporting supply up to (2^96^ - 1). + * + * NOTE: You should use this contract if you need exact compatibility with COMP (for example in order to use your token + * with Governor Alpha or Bravo) and if you are sure the supply cap of 2^96^ is enough for you. Otherwise, use the + * {ERC20Votes} variant of this module. + * + * This extension keeps a history (checkpoints) of each account's vote power. Vote power can be delegated either + * by calling the {delegate} function directly, or by providing a signature to be used with {delegateBySig}. Voting + * power can be queried through the public accessors {getCurrentVotes} and {getPriorVotes}. + * + * By default, token balance does not account for voting power. This makes transfers cheaper. The downside is that it + * requires users to delegate to themselves in order to activate checkpoints and have their voting power tracked. + * + * _Available since v4.2._ + */ +abstract contract ERC20VotesComp is ERC20Votes { + /** + * @dev Comp version of the {getVotes} accessor, with `uint96` return type. + */ + function getCurrentVotes(address account) external view virtual returns (uint96) { + return SafeCast.toUint96(getVotes(account)); + } + + /** + * @dev Comp version of the {getPastVotes} accessor, with `uint96` return type. + */ + function getPriorVotes(address account, uint256 blockNumber) external view virtual returns (uint96) { + return SafeCast.toUint96(getPastVotes(account, blockNumber)); + } + + /** + * @dev Maximum token supply. Reduced to `type(uint96).max` (2^96^ - 1) to fit COMP interface. + */ + function _maxSupply() internal view virtual override returns (uint224) { + return type(uint96).max; + } +} diff --git a/lib/openzeppelin-contracts/contracts/token/ERC20/extensions/ERC20Wrapper.sol b/lib/openzeppelin-contracts/contracts/token/ERC20/extensions/ERC20Wrapper.sol new file mode 100644 index 0000000..8b153ff --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/token/ERC20/extensions/ERC20Wrapper.sol @@ -0,0 +1,63 @@ +// SPDX-License-Identifier: MIT +// OpenZeppelin Contracts (last updated v4.6.0) (token/ERC20/extensions/ERC20Wrapper.sol) + +pragma solidity ^0.8.0; + +import "../ERC20.sol"; +import "../utils/SafeERC20.sol"; + +/** + * @dev Extension of the ERC20 token contract to support token wrapping. + * + * Users can deposit and withdraw "underlying tokens" and receive a matching number of "wrapped tokens". This is useful + * in conjunction with other modules. For example, combining this wrapping mechanism with {ERC20Votes} will allow the + * wrapping of an existing "basic" ERC20 into a governance token. + * + * _Available since v4.2._ + */ +abstract contract ERC20Wrapper is ERC20 { + IERC20 public immutable underlying; + + constructor(IERC20 underlyingToken) { + underlying = underlyingToken; + } + + /** + * @dev See {ERC20-decimals}. + */ + function decimals() public view virtual override returns (uint8) { + try IERC20Metadata(address(underlying)).decimals() returns (uint8 value) { + return value; + } catch { + return super.decimals(); + } + } + + /** + * @dev Allow a user to deposit underlying tokens and mint the corresponding number of wrapped tokens. + */ + function depositFor(address account, uint256 amount) public virtual returns (bool) { + SafeERC20.safeTransferFrom(underlying, _msgSender(), address(this), amount); + _mint(account, amount); + return true; + } + + /** + * @dev Allow a user to burn a number of wrapped tokens and withdraw the corresponding number of underlying tokens. + */ + function withdrawTo(address account, uint256 amount) public virtual returns (bool) { + _burn(_msgSender(), amount); + SafeERC20.safeTransfer(underlying, account, amount); + return true; + } + + /** + * @dev Mint wrapped token to cover any underlyingTokens that would have been transferred by mistake. Internal + * function that can be exposed with access control if desired. + */ + function _recover(address account) internal virtual returns (uint256) { + uint256 value = underlying.balanceOf(address(this)) - totalSupply(); + _mint(account, value); + return value; + } +} diff --git a/lib/openzeppelin-contracts/contracts/token/ERC20/extensions/ERC4626.sol b/lib/openzeppelin-contracts/contracts/token/ERC20/extensions/ERC4626.sol new file mode 100644 index 0000000..663377d --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/token/ERC20/extensions/ERC4626.sol @@ -0,0 +1,271 @@ +// SPDX-License-Identifier: MIT +// OpenZeppelin Contracts (last updated v4.8.0) (token/ERC20/extensions/ERC4626.sol) + +pragma solidity ^0.8.0; + +import "../ERC20.sol"; +import "../utils/SafeERC20.sol"; +import "../../../interfaces/IERC4626.sol"; +import "../../../utils/math/Math.sol"; + +/** + * @dev Implementation of the ERC4626 "Tokenized Vault Standard" as defined in + * https://eips.ethereum.org/EIPS/eip-4626[EIP-4626]. + * + * This extension allows the minting and burning of "shares" (represented using the ERC20 inheritance) in exchange for + * underlying "assets" through standardized {deposit}, {mint}, {redeem} and {burn} workflows. This contract extends + * the ERC20 standard. Any additional extensions included along it would affect the "shares" token represented by this + * contract and not the "assets" token which is an independent contract. + * + * CAUTION: When the vault is empty or nearly empty, deposits are at high risk of being stolen through frontrunning with + * a "donation" to the vault that inflates the price of a share. This is variously known as a donation or inflation + * attack and is essentially a problem of slippage. Vault deployers can protect against this attack by making an initial + * deposit of a non-trivial amount of the asset, such that price manipulation becomes infeasible. Withdrawals may + * similarly be affected by slippage. Users can protect against this attack as well unexpected slippage in general by + * verifying the amount received is as expected, using a wrapper that performs these checks such as + * https://github.com/fei-protocol/ERC4626#erc4626router-and-base[ERC4626Router]. + * + * _Available since v4.7._ + */ +abstract contract ERC4626 is ERC20, IERC4626 { + using Math for uint256; + + IERC20 private immutable _asset; + uint8 private immutable _decimals; + + /** + * @dev Set the underlying asset contract. This must be an ERC20-compatible contract (ERC20 or ERC777). + */ + constructor(IERC20 asset_) { + (bool success, uint8 assetDecimals) = _tryGetAssetDecimals(asset_); + _decimals = success ? assetDecimals : super.decimals(); + _asset = asset_; + } + + /** + * @dev Attempts to fetch the asset decimals. A return value of false indicates that the attempt failed in some way. + */ + function _tryGetAssetDecimals(IERC20 asset_) private view returns (bool, uint8) { + (bool success, bytes memory encodedDecimals) = address(asset_).staticcall( + abi.encodeWithSelector(IERC20Metadata.decimals.selector) + ); + if (success && encodedDecimals.length >= 32) { + uint256 returnedDecimals = abi.decode(encodedDecimals, (uint256)); + if (returnedDecimals <= type(uint8).max) { + return (true, uint8(returnedDecimals)); + } + } + return (false, 0); + } + + /** + * @dev Decimals are read from the underlying asset in the constructor and cached. If this fails (e.g., the asset + * has not been created yet), the cached value is set to a default obtained by `super.decimals()` (which depends on + * inheritance but is most likely 18). Override this function in order to set a guaranteed hardcoded value. + * See {IERC20Metadata-decimals}. + */ + function decimals() public view virtual override(IERC20Metadata, ERC20) returns (uint8) { + return _decimals; + } + + /** @dev See {IERC4626-asset}. */ + function asset() public view virtual override returns (address) { + return address(_asset); + } + + /** @dev See {IERC4626-totalAssets}. */ + function totalAssets() public view virtual override returns (uint256) { + return _asset.balanceOf(address(this)); + } + + /** @dev See {IERC4626-convertToShares}. */ + function convertToShares(uint256 assets) public view virtual override returns (uint256) { + return _convertToShares(assets, Math.Rounding.Down); + } + + /** @dev See {IERC4626-convertToAssets}. */ + function convertToAssets(uint256 shares) public view virtual override returns (uint256) { + return _convertToAssets(shares, Math.Rounding.Down); + } + + /** @dev See {IERC4626-maxDeposit}. */ + function maxDeposit(address) public view virtual override returns (uint256) { + return _isVaultHealthy() ? type(uint256).max : 0; + } + + /** @dev See {IERC4626-maxMint}. */ + function maxMint(address) public view virtual override returns (uint256) { + return type(uint256).max; + } + + /** @dev See {IERC4626-maxWithdraw}. */ + function maxWithdraw(address owner) public view virtual override returns (uint256) { + return _convertToAssets(balanceOf(owner), Math.Rounding.Down); + } + + /** @dev See {IERC4626-maxRedeem}. */ + function maxRedeem(address owner) public view virtual override returns (uint256) { + return balanceOf(owner); + } + + /** @dev See {IERC4626-previewDeposit}. */ + function previewDeposit(uint256 assets) public view virtual override returns (uint256) { + return _convertToShares(assets, Math.Rounding.Down); + } + + /** @dev See {IERC4626-previewMint}. */ + function previewMint(uint256 shares) public view virtual override returns (uint256) { + return _convertToAssets(shares, Math.Rounding.Up); + } + + /** @dev See {IERC4626-previewWithdraw}. */ + function previewWithdraw(uint256 assets) public view virtual override returns (uint256) { + return _convertToShares(assets, Math.Rounding.Up); + } + + /** @dev See {IERC4626-previewRedeem}. */ + function previewRedeem(uint256 shares) public view virtual override returns (uint256) { + return _convertToAssets(shares, Math.Rounding.Down); + } + + /** @dev See {IERC4626-deposit}. */ + function deposit(uint256 assets, address receiver) public virtual override returns (uint256) { + require(assets <= maxDeposit(receiver), "ERC4626: deposit more than max"); + + uint256 shares = previewDeposit(assets); + _deposit(_msgSender(), receiver, assets, shares); + + return shares; + } + + /** @dev See {IERC4626-mint}. + * + * As opposed to {deposit}, minting is allowed even if the vault is in a state where the price of a share is zero. + * In this case, the shares will be minted without requiring any assets to be deposited. + */ + function mint(uint256 shares, address receiver) public virtual override returns (uint256) { + require(shares <= maxMint(receiver), "ERC4626: mint more than max"); + + uint256 assets = previewMint(shares); + _deposit(_msgSender(), receiver, assets, shares); + + return assets; + } + + /** @dev See {IERC4626-withdraw}. */ + function withdraw(uint256 assets, address receiver, address owner) public virtual override returns (uint256) { + require(assets <= maxWithdraw(owner), "ERC4626: withdraw more than max"); + + uint256 shares = previewWithdraw(assets); + _withdraw(_msgSender(), receiver, owner, assets, shares); + + return shares; + } + + /** @dev See {IERC4626-redeem}. */ + function redeem(uint256 shares, address receiver, address owner) public virtual override returns (uint256) { + require(shares <= maxRedeem(owner), "ERC4626: redeem more than max"); + + uint256 assets = previewRedeem(shares); + _withdraw(_msgSender(), receiver, owner, assets, shares); + + return assets; + } + + /** + * @dev Internal conversion function (from assets to shares) with support for rounding direction. + * + * Will revert if assets > 0, totalSupply > 0 and totalAssets = 0. That corresponds to a case where any asset + * would represent an infinite amount of shares. + */ + function _convertToShares(uint256 assets, Math.Rounding rounding) internal view virtual returns (uint256) { + uint256 supply = totalSupply(); + return + (assets == 0 || supply == 0) + ? _initialConvertToShares(assets, rounding) + : assets.mulDiv(supply, totalAssets(), rounding); + } + + /** + * @dev Internal conversion function (from assets to shares) to apply when the vault is empty. + * + * NOTE: Make sure to keep this function consistent with {_initialConvertToAssets} when overriding it. + */ + function _initialConvertToShares( + uint256 assets, + Math.Rounding /*rounding*/ + ) internal view virtual returns (uint256 shares) { + return assets; + } + + /** + * @dev Internal conversion function (from shares to assets) with support for rounding direction. + */ + function _convertToAssets(uint256 shares, Math.Rounding rounding) internal view virtual returns (uint256) { + uint256 supply = totalSupply(); + return + (supply == 0) ? _initialConvertToAssets(shares, rounding) : shares.mulDiv(totalAssets(), supply, rounding); + } + + /** + * @dev Internal conversion function (from shares to assets) to apply when the vault is empty. + * + * NOTE: Make sure to keep this function consistent with {_initialConvertToShares} when overriding it. + */ + function _initialConvertToAssets( + uint256 shares, + Math.Rounding /*rounding*/ + ) internal view virtual returns (uint256) { + return shares; + } + + /** + * @dev Deposit/mint common workflow. + */ + function _deposit(address caller, address receiver, uint256 assets, uint256 shares) internal virtual { + // If _asset is ERC777, `transferFrom` can trigger a reenterancy BEFORE the transfer happens through the + // `tokensToSend` hook. On the other hand, the `tokenReceived` hook, that is triggered after the transfer, + // calls the vault, which is assumed not malicious. + // + // Conclusion: we need to do the transfer before we mint so that any reentrancy would happen before the + // assets are transferred and before the shares are minted, which is a valid state. + // slither-disable-next-line reentrancy-no-eth + SafeERC20.safeTransferFrom(_asset, caller, address(this), assets); + _mint(receiver, shares); + + emit Deposit(caller, receiver, assets, shares); + } + + /** + * @dev Withdraw/redeem common workflow. + */ + function _withdraw( + address caller, + address receiver, + address owner, + uint256 assets, + uint256 shares + ) internal virtual { + if (caller != owner) { + _spendAllowance(owner, caller, shares); + } + + // If _asset is ERC777, `transfer` can trigger a reentrancy AFTER the transfer happens through the + // `tokensReceived` hook. On the other hand, the `tokensToSend` hook, that is triggered before the transfer, + // calls the vault, which is assumed not malicious. + // + // Conclusion: we need to do the transfer after the burn so that any reentrancy would happen after the + // shares are burned and after the assets are transferred, which is a valid state. + _burn(owner, shares); + SafeERC20.safeTransfer(_asset, receiver, assets); + + emit Withdraw(caller, receiver, owner, assets, shares); + } + + /** + * @dev Checks if vault is "healthy" in the sense of having assets backing the circulating shares. + */ + function _isVaultHealthy() private view returns (bool) { + return totalAssets() > 0 || totalSupply() == 0; + } +} diff --git a/lib/openzeppelin-contracts/contracts/token/ERC20/extensions/IERC20Metadata.sol b/lib/openzeppelin-contracts/contracts/token/ERC20/extensions/IERC20Metadata.sol new file mode 100644 index 0000000..83ba6ac --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/token/ERC20/extensions/IERC20Metadata.sol @@ -0,0 +1,28 @@ +// SPDX-License-Identifier: MIT +// OpenZeppelin Contracts v4.4.1 (token/ERC20/extensions/IERC20Metadata.sol) + +pragma solidity ^0.8.0; + +import "../IERC20.sol"; + +/** + * @dev Interface for the optional metadata functions from the ERC20 standard. + * + * _Available since v4.1._ + */ +interface IERC20Metadata is IERC20 { + /** + * @dev Returns the name of the token. + */ + function name() external view returns (string memory); + + /** + * @dev Returns the symbol of the token. + */ + function symbol() external view returns (string memory); + + /** + * @dev Returns the decimals places of the token. + */ + function decimals() external view returns (uint8); +} diff --git a/lib/openzeppelin-contracts/contracts/token/ERC20/extensions/IERC20Permit.sol b/lib/openzeppelin-contracts/contracts/token/ERC20/extensions/IERC20Permit.sol new file mode 100644 index 0000000..bb43e53 --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/token/ERC20/extensions/IERC20Permit.sol @@ -0,0 +1,60 @@ +// SPDX-License-Identifier: MIT +// OpenZeppelin Contracts v4.4.1 (token/ERC20/extensions/IERC20Permit.sol) + +pragma solidity ^0.8.0; + +/** + * @dev Interface of the ERC20 Permit extension allowing approvals to be made via signatures, as defined in + * https://eips.ethereum.org/EIPS/eip-2612[EIP-2612]. + * + * Adds the {permit} method, which can be used to change an account's ERC20 allowance (see {IERC20-allowance}) by + * presenting a message signed by the account. By not relying on {IERC20-approve}, the token holder account doesn't + * need to send a transaction, and thus is not required to hold Ether at all. + */ +interface IERC20Permit { + /** + * @dev Sets `value` as the allowance of `spender` over ``owner``'s tokens, + * given ``owner``'s signed approval. + * + * IMPORTANT: The same issues {IERC20-approve} has related to transaction + * ordering also apply here. + * + * Emits an {Approval} event. + * + * Requirements: + * + * - `spender` cannot be the zero address. + * - `deadline` must be a timestamp in the future. + * - `v`, `r` and `s` must be a valid `secp256k1` signature from `owner` + * over the EIP712-formatted function arguments. + * - the signature must use ``owner``'s current nonce (see {nonces}). + * + * For more information on the signature format, see the + * https://eips.ethereum.org/EIPS/eip-2612#specification[relevant EIP + * section]. + */ + function permit( + address owner, + address spender, + uint256 value, + uint256 deadline, + uint8 v, + bytes32 r, + bytes32 s + ) external; + + /** + * @dev Returns the current nonce for `owner`. This value must be + * included whenever a signature is generated for {permit}. + * + * Every successful call to {permit} increases ``owner``'s nonce by one. This + * prevents a signature from being used multiple times. + */ + function nonces(address owner) external view returns (uint256); + + /** + * @dev Returns the domain separator used in the encoding of the signature for {permit}, as defined by {EIP712}. + */ + // solhint-disable-next-line func-name-mixedcase + function DOMAIN_SEPARATOR() external view returns (bytes32); +} diff --git a/lib/openzeppelin-contracts/contracts/token/ERC20/extensions/draft-ERC20Permit.sol b/lib/openzeppelin-contracts/contracts/token/ERC20/extensions/draft-ERC20Permit.sol new file mode 100644 index 0000000..6579ef3 --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/token/ERC20/extensions/draft-ERC20Permit.sol @@ -0,0 +1,8 @@ +// SPDX-License-Identifier: MIT +// OpenZeppelin Contracts (last updated v4.8.0) (token/ERC20/extensions/draft-ERC20Permit.sol) + +pragma solidity ^0.8.0; + +// EIP-2612 is Final as of 2022-11-01. This file is deprecated. + +import "./ERC20Permit.sol"; diff --git a/lib/openzeppelin-contracts/contracts/token/ERC20/extensions/draft-IERC20Permit.sol b/lib/openzeppelin-contracts/contracts/token/ERC20/extensions/draft-IERC20Permit.sol new file mode 100644 index 0000000..1df6c53 --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/token/ERC20/extensions/draft-IERC20Permit.sol @@ -0,0 +1,7 @@ +// SPDX-License-Identifier: MIT + +pragma solidity ^0.8.0; + +// EIP-2612 is Final as of 2022-11-01. This file is deprecated. + +import "./IERC20Permit.sol"; diff --git a/lib/openzeppelin-contracts/contracts/token/ERC20/presets/ERC20PresetFixedSupply.sol b/lib/openzeppelin-contracts/contracts/token/ERC20/presets/ERC20PresetFixedSupply.sol new file mode 100644 index 0000000..e826814 --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/token/ERC20/presets/ERC20PresetFixedSupply.sol @@ -0,0 +1,30 @@ +// SPDX-License-Identifier: MIT +// OpenZeppelin Contracts (last updated v4.5.0) (token/ERC20/presets/ERC20PresetFixedSupply.sol) +pragma solidity ^0.8.0; + +import "../extensions/ERC20Burnable.sol"; + +/** + * @dev {ERC20} token, including: + * + * - Preminted initial supply + * - Ability for holders to burn (destroy) their tokens + * - No access control mechanism (for minting/pausing) and hence no governance + * + * This contract uses {ERC20Burnable} to include burn capabilities - head to + * its documentation for details. + * + * _Available since v3.4._ + * + * _Deprecated in favor of https://wizard.openzeppelin.com/[Contracts Wizard]._ + */ +contract ERC20PresetFixedSupply is ERC20Burnable { + /** + * @dev Mints `initialSupply` amount of token and transfers them to `owner`. + * + * See {ERC20-constructor}. + */ + constructor(string memory name, string memory symbol, uint256 initialSupply, address owner) ERC20(name, symbol) { + _mint(owner, initialSupply); + } +} diff --git a/lib/openzeppelin-contracts/contracts/token/ERC20/presets/ERC20PresetMinterPauser.sol b/lib/openzeppelin-contracts/contracts/token/ERC20/presets/ERC20PresetMinterPauser.sol new file mode 100644 index 0000000..e711a89 --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/token/ERC20/presets/ERC20PresetMinterPauser.sol @@ -0,0 +1,94 @@ +// SPDX-License-Identifier: MIT +// OpenZeppelin Contracts (last updated v4.5.0) (token/ERC20/presets/ERC20PresetMinterPauser.sol) + +pragma solidity ^0.8.0; + +import "../ERC20.sol"; +import "../extensions/ERC20Burnable.sol"; +import "../extensions/ERC20Pausable.sol"; +import "../../../access/AccessControlEnumerable.sol"; +import "../../../utils/Context.sol"; + +/** + * @dev {ERC20} token, including: + * + * - ability for holders to burn (destroy) their tokens + * - a minter role that allows for token minting (creation) + * - a pauser role that allows to stop all token transfers + * + * This contract uses {AccessControl} to lock permissioned functions using the + * different roles - head to its documentation for details. + * + * The account that deploys the contract will be granted the minter and pauser + * roles, as well as the default admin role, which will let it grant both minter + * and pauser roles to other accounts. + * + * _Deprecated in favor of https://wizard.openzeppelin.com/[Contracts Wizard]._ + */ +contract ERC20PresetMinterPauser is Context, AccessControlEnumerable, ERC20Burnable, ERC20Pausable { + bytes32 public constant MINTER_ROLE = keccak256("MINTER_ROLE"); + bytes32 public constant PAUSER_ROLE = keccak256("PAUSER_ROLE"); + + /** + * @dev Grants `DEFAULT_ADMIN_ROLE`, `MINTER_ROLE` and `PAUSER_ROLE` to the + * account that deploys the contract. + * + * See {ERC20-constructor}. + */ + constructor(string memory name, string memory symbol) ERC20(name, symbol) { + _setupRole(DEFAULT_ADMIN_ROLE, _msgSender()); + + _setupRole(MINTER_ROLE, _msgSender()); + _setupRole(PAUSER_ROLE, _msgSender()); + } + + /** + * @dev Creates `amount` new tokens for `to`. + * + * See {ERC20-_mint}. + * + * Requirements: + * + * - the caller must have the `MINTER_ROLE`. + */ + function mint(address to, uint256 amount) public virtual { + require(hasRole(MINTER_ROLE, _msgSender()), "ERC20PresetMinterPauser: must have minter role to mint"); + _mint(to, amount); + } + + /** + * @dev Pauses all token transfers. + * + * See {ERC20Pausable} and {Pausable-_pause}. + * + * Requirements: + * + * - the caller must have the `PAUSER_ROLE`. + */ + function pause() public virtual { + require(hasRole(PAUSER_ROLE, _msgSender()), "ERC20PresetMinterPauser: must have pauser role to pause"); + _pause(); + } + + /** + * @dev Unpauses all token transfers. + * + * See {ERC20Pausable} and {Pausable-_unpause}. + * + * Requirements: + * + * - the caller must have the `PAUSER_ROLE`. + */ + function unpause() public virtual { + require(hasRole(PAUSER_ROLE, _msgSender()), "ERC20PresetMinterPauser: must have pauser role to unpause"); + _unpause(); + } + + function _beforeTokenTransfer( + address from, + address to, + uint256 amount + ) internal virtual override(ERC20, ERC20Pausable) { + super._beforeTokenTransfer(from, to, amount); + } +} diff --git a/lib/openzeppelin-contracts/contracts/token/ERC20/presets/README.md b/lib/openzeppelin-contracts/contracts/token/ERC20/presets/README.md new file mode 100644 index 0000000..468200b --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/token/ERC20/presets/README.md @@ -0,0 +1 @@ +Contract presets are now deprecated in favor of [Contracts Wizard](https://wizard.openzeppelin.com/) as a more powerful alternative. diff --git a/lib/openzeppelin-contracts/contracts/token/ERC20/utils/SafeERC20.sol b/lib/openzeppelin-contracts/contracts/token/ERC20/utils/SafeERC20.sol new file mode 100644 index 0000000..028711d --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/token/ERC20/utils/SafeERC20.sol @@ -0,0 +1,95 @@ +// SPDX-License-Identifier: MIT +// OpenZeppelin Contracts (last updated v4.8.0) (token/ERC20/utils/SafeERC20.sol) + +pragma solidity ^0.8.0; + +import "../IERC20.sol"; +import "../extensions/IERC20Permit.sol"; +import "../../../utils/Address.sol"; + +/** + * @title SafeERC20 + * @dev Wrappers around ERC20 operations that throw on failure (when the token + * contract returns false). Tokens that return no value (and instead revert or + * throw on failure) are also supported, non-reverting calls are assumed to be + * successful. + * To use this library you can add a `using SafeERC20 for IERC20;` statement to your contract, + * which allows you to call the safe operations as `token.safeTransfer(...)`, etc. + */ +library SafeERC20 { + using Address for address; + + function safeTransfer(IERC20 token, address to, uint256 value) internal { + _callOptionalReturn(token, abi.encodeWithSelector(token.transfer.selector, to, value)); + } + + function safeTransferFrom(IERC20 token, address from, address to, uint256 value) internal { + _callOptionalReturn(token, abi.encodeWithSelector(token.transferFrom.selector, from, to, value)); + } + + /** + * @dev Deprecated. This function has issues similar to the ones found in + * {IERC20-approve}, and its usage is discouraged. + * + * Whenever possible, use {safeIncreaseAllowance} and + * {safeDecreaseAllowance} instead. + */ + function safeApprove(IERC20 token, address spender, uint256 value) internal { + // safeApprove should only be called when setting an initial allowance, + // or when resetting it to zero. To increase and decrease it, use + // 'safeIncreaseAllowance' and 'safeDecreaseAllowance' + require( + (value == 0) || (token.allowance(address(this), spender) == 0), + "SafeERC20: approve from non-zero to non-zero allowance" + ); + _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, value)); + } + + function safeIncreaseAllowance(IERC20 token, address spender, uint256 value) internal { + uint256 newAllowance = token.allowance(address(this), spender) + value; + _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, newAllowance)); + } + + function safeDecreaseAllowance(IERC20 token, address spender, uint256 value) internal { + unchecked { + uint256 oldAllowance = token.allowance(address(this), spender); + require(oldAllowance >= value, "SafeERC20: decreased allowance below zero"); + uint256 newAllowance = oldAllowance - value; + _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, newAllowance)); + } + } + + function safePermit( + IERC20Permit token, + address owner, + address spender, + uint256 value, + uint256 deadline, + uint8 v, + bytes32 r, + bytes32 s + ) internal { + uint256 nonceBefore = token.nonces(owner); + token.permit(owner, spender, value, deadline, v, r, s); + uint256 nonceAfter = token.nonces(owner); + require(nonceAfter == nonceBefore + 1, "SafeERC20: permit did not succeed"); + } + + /** + * @dev Imitates a Solidity high-level call (i.e. a regular function call to a contract), relaxing the requirement + * on the return value: the return value is optional (but if data is returned, it must not be false). + * @param token The token targeted by the call. + * @param data The call data (encoded using abi.encode or one of its variants). + */ + function _callOptionalReturn(IERC20 token, bytes memory data) private { + // We need to perform a low level call here, to bypass Solidity's return data size checking mechanism, since + // we're implementing it ourselves. We use {Address-functionCall} to perform this call, which verifies that + // the target address contains contract code and also asserts for success in the low-level call. + + bytes memory returndata = address(token).functionCall(data, "SafeERC20: low-level call failed"); + if (returndata.length > 0) { + // Return data is optional + require(abi.decode(returndata, (bool)), "SafeERC20: ERC20 operation did not succeed"); + } + } +} diff --git a/lib/openzeppelin-contracts/contracts/token/ERC20/utils/TokenTimelock.sol b/lib/openzeppelin-contracts/contracts/token/ERC20/utils/TokenTimelock.sol new file mode 100644 index 0000000..ed855b7 --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/token/ERC20/utils/TokenTimelock.sol @@ -0,0 +1,72 @@ +// SPDX-License-Identifier: MIT +// OpenZeppelin Contracts (last updated v4.5.0) (token/ERC20/utils/TokenTimelock.sol) + +pragma solidity ^0.8.0; + +import "./SafeERC20.sol"; + +/** + * @dev A token holder contract that will allow a beneficiary to extract the + * tokens after a given release time. + * + * Useful for simple vesting schedules like "advisors get all of their tokens + * after 1 year". + */ +contract TokenTimelock { + using SafeERC20 for IERC20; + + // ERC20 basic token contract being held + IERC20 private immutable _token; + + // beneficiary of tokens after they are released + address private immutable _beneficiary; + + // timestamp when token release is enabled + uint256 private immutable _releaseTime; + + /** + * @dev Deploys a timelock instance that is able to hold the token specified, and will only release it to + * `beneficiary_` when {release} is invoked after `releaseTime_`. The release time is specified as a Unix timestamp + * (in seconds). + */ + constructor(IERC20 token_, address beneficiary_, uint256 releaseTime_) { + require(releaseTime_ > block.timestamp, "TokenTimelock: release time is before current time"); + _token = token_; + _beneficiary = beneficiary_; + _releaseTime = releaseTime_; + } + + /** + * @dev Returns the token being held. + */ + function token() public view virtual returns (IERC20) { + return _token; + } + + /** + * @dev Returns the beneficiary that will receive the tokens. + */ + function beneficiary() public view virtual returns (address) { + return _beneficiary; + } + + /** + * @dev Returns the time when the tokens are released in seconds since Unix epoch (i.e. Unix timestamp). + */ + function releaseTime() public view virtual returns (uint256) { + return _releaseTime; + } + + /** + * @dev Transfers tokens held by the timelock to the beneficiary. Will only succeed if invoked after the release + * time. + */ + function release() public virtual { + require(block.timestamp >= releaseTime(), "TokenTimelock: current time is before release time"); + + uint256 amount = token().balanceOf(address(this)); + require(amount > 0, "TokenTimelock: no tokens to release"); + + token().safeTransfer(beneficiary(), amount); + } +} diff --git a/lib/openzeppelin-contracts/contracts/token/ERC721/ERC721.sol b/lib/openzeppelin-contracts/contracts/token/ERC721/ERC721.sol new file mode 100644 index 0000000..6bf620b --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/token/ERC721/ERC721.sol @@ -0,0 +1,468 @@ +// SPDX-License-Identifier: MIT +// OpenZeppelin Contracts (last updated v4.8.0) (token/ERC721/ERC721.sol) + +pragma solidity ^0.8.0; + +import "./IERC721.sol"; +import "./IERC721Receiver.sol"; +import "./extensions/IERC721Metadata.sol"; +import "../../utils/Address.sol"; +import "../../utils/Context.sol"; +import "../../utils/Strings.sol"; +import "../../utils/introspection/ERC165.sol"; + +/** + * @dev Implementation of https://eips.ethereum.org/EIPS/eip-721[ERC721] Non-Fungible Token Standard, including + * the Metadata extension, but not including the Enumerable extension, which is available separately as + * {ERC721Enumerable}. + */ +contract ERC721 is Context, ERC165, IERC721, IERC721Metadata { + using Address for address; + using Strings for uint256; + + // Token name + string private _name; + + // Token symbol + string private _symbol; + + // Mapping from token ID to owner address + mapping(uint256 => address) private _owners; + + // Mapping owner address to token count + mapping(address => uint256) private _balances; + + // Mapping from token ID to approved address + mapping(uint256 => address) private _tokenApprovals; + + // Mapping from owner to operator approvals + mapping(address => mapping(address => bool)) private _operatorApprovals; + + /** + * @dev Initializes the contract by setting a `name` and a `symbol` to the token collection. + */ + constructor(string memory name_, string memory symbol_) { + _name = name_; + _symbol = symbol_; + } + + /** + * @dev See {IERC165-supportsInterface}. + */ + function supportsInterface(bytes4 interfaceId) public view virtual override(ERC165, IERC165) returns (bool) { + return + interfaceId == type(IERC721).interfaceId || + interfaceId == type(IERC721Metadata).interfaceId || + super.supportsInterface(interfaceId); + } + + /** + * @dev See {IERC721-balanceOf}. + */ + function balanceOf(address owner) public view virtual override returns (uint256) { + require(owner != address(0), "ERC721: address zero is not a valid owner"); + return _balances[owner]; + } + + /** + * @dev See {IERC721-ownerOf}. + */ + function ownerOf(uint256 tokenId) public view virtual override returns (address) { + address owner = _ownerOf(tokenId); + require(owner != address(0), "ERC721: invalid token ID"); + return owner; + } + + /** + * @dev See {IERC721Metadata-name}. + */ + function name() public view virtual override returns (string memory) { + return _name; + } + + /** + * @dev See {IERC721Metadata-symbol}. + */ + function symbol() public view virtual override returns (string memory) { + return _symbol; + } + + /** + * @dev See {IERC721Metadata-tokenURI}. + */ + function tokenURI(uint256 tokenId) public view virtual override returns (string memory) { + _requireMinted(tokenId); + + string memory baseURI = _baseURI(); + return bytes(baseURI).length > 0 ? string(abi.encodePacked(baseURI, tokenId.toString())) : ""; + } + + /** + * @dev Base URI for computing {tokenURI}. If set, the resulting URI for each + * token will be the concatenation of the `baseURI` and the `tokenId`. Empty + * by default, can be overridden in child contracts. + */ + function _baseURI() internal view virtual returns (string memory) { + return ""; + } + + /** + * @dev See {IERC721-approve}. + */ + function approve(address to, uint256 tokenId) public virtual override { + address owner = ERC721.ownerOf(tokenId); + require(to != owner, "ERC721: approval to current owner"); + + require( + _msgSender() == owner || isApprovedForAll(owner, _msgSender()), + "ERC721: approve caller is not token owner or approved for all" + ); + + _approve(to, tokenId); + } + + /** + * @dev See {IERC721-getApproved}. + */ + function getApproved(uint256 tokenId) public view virtual override returns (address) { + _requireMinted(tokenId); + + return _tokenApprovals[tokenId]; + } + + /** + * @dev See {IERC721-setApprovalForAll}. + */ + function setApprovalForAll(address operator, bool approved) public virtual override { + _setApprovalForAll(_msgSender(), operator, approved); + } + + /** + * @dev See {IERC721-isApprovedForAll}. + */ + function isApprovedForAll(address owner, address operator) public view virtual override returns (bool) { + return _operatorApprovals[owner][operator]; + } + + /** + * @dev See {IERC721-transferFrom}. + */ + function transferFrom(address from, address to, uint256 tokenId) public virtual override { + //solhint-disable-next-line max-line-length + require(_isApprovedOrOwner(_msgSender(), tokenId), "ERC721: caller is not token owner or approved"); + + _transfer(from, to, tokenId); + } + + /** + * @dev See {IERC721-safeTransferFrom}. + */ + function safeTransferFrom(address from, address to, uint256 tokenId) public virtual override { + safeTransferFrom(from, to, tokenId, ""); + } + + /** + * @dev See {IERC721-safeTransferFrom}. + */ + function safeTransferFrom(address from, address to, uint256 tokenId, bytes memory data) public virtual override { + require(_isApprovedOrOwner(_msgSender(), tokenId), "ERC721: caller is not token owner or approved"); + _safeTransfer(from, to, tokenId, data); + } + + /** + * @dev Safely transfers `tokenId` token from `from` to `to`, checking first that contract recipients + * are aware of the ERC721 protocol to prevent tokens from being forever locked. + * + * `data` is additional data, it has no specified format and it is sent in call to `to`. + * + * This internal function is equivalent to {safeTransferFrom}, and can be used to e.g. + * implement alternative mechanisms to perform token transfer, such as signature-based. + * + * Requirements: + * + * - `from` cannot be the zero address. + * - `to` cannot be the zero address. + * - `tokenId` token must exist and be owned by `from`. + * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer. + * + * Emits a {Transfer} event. + */ + function _safeTransfer(address from, address to, uint256 tokenId, bytes memory data) internal virtual { + _transfer(from, to, tokenId); + require(_checkOnERC721Received(from, to, tokenId, data), "ERC721: transfer to non ERC721Receiver implementer"); + } + + /** + * @dev Returns the owner of the `tokenId`. Does NOT revert if token doesn't exist + */ + function _ownerOf(uint256 tokenId) internal view virtual returns (address) { + return _owners[tokenId]; + } + + /** + * @dev Returns whether `tokenId` exists. + * + * Tokens can be managed by their owner or approved accounts via {approve} or {setApprovalForAll}. + * + * Tokens start existing when they are minted (`_mint`), + * and stop existing when they are burned (`_burn`). + */ + function _exists(uint256 tokenId) internal view virtual returns (bool) { + return _ownerOf(tokenId) != address(0); + } + + /** + * @dev Returns whether `spender` is allowed to manage `tokenId`. + * + * Requirements: + * + * - `tokenId` must exist. + */ + function _isApprovedOrOwner(address spender, uint256 tokenId) internal view virtual returns (bool) { + address owner = ERC721.ownerOf(tokenId); + return (spender == owner || isApprovedForAll(owner, spender) || getApproved(tokenId) == spender); + } + + /** + * @dev Safely mints `tokenId` and transfers it to `to`. + * + * Requirements: + * + * - `tokenId` must not exist. + * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer. + * + * Emits a {Transfer} event. + */ + function _safeMint(address to, uint256 tokenId) internal virtual { + _safeMint(to, tokenId, ""); + } + + /** + * @dev Same as {xref-ERC721-_safeMint-address-uint256-}[`_safeMint`], with an additional `data` parameter which is + * forwarded in {IERC721Receiver-onERC721Received} to contract recipients. + */ + function _safeMint(address to, uint256 tokenId, bytes memory data) internal virtual { + _mint(to, tokenId); + require( + _checkOnERC721Received(address(0), to, tokenId, data), + "ERC721: transfer to non ERC721Receiver implementer" + ); + } + + /** + * @dev Mints `tokenId` and transfers it to `to`. + * + * WARNING: Usage of this method is discouraged, use {_safeMint} whenever possible + * + * Requirements: + * + * - `tokenId` must not exist. + * - `to` cannot be the zero address. + * + * Emits a {Transfer} event. + */ + function _mint(address to, uint256 tokenId) internal virtual { + require(to != address(0), "ERC721: mint to the zero address"); + require(!_exists(tokenId), "ERC721: token already minted"); + + _beforeTokenTransfer(address(0), to, tokenId, 1); + + // Check that tokenId was not minted by `_beforeTokenTransfer` hook + require(!_exists(tokenId), "ERC721: token already minted"); + + unchecked { + // Will not overflow unless all 2**256 token ids are minted to the same owner. + // Given that tokens are minted one by one, it is impossible in practice that + // this ever happens. Might change if we allow batch minting. + // The ERC fails to describe this case. + _balances[to] += 1; + } + + _owners[tokenId] = to; + + emit Transfer(address(0), to, tokenId); + + _afterTokenTransfer(address(0), to, tokenId, 1); + } + + /** + * @dev Destroys `tokenId`. + * The approval is cleared when the token is burned. + * This is an internal function that does not check if the sender is authorized to operate on the token. + * + * Requirements: + * + * - `tokenId` must exist. + * + * Emits a {Transfer} event. + */ + function _burn(uint256 tokenId) internal virtual { + address owner = ERC721.ownerOf(tokenId); + + _beforeTokenTransfer(owner, address(0), tokenId, 1); + + // Update ownership in case tokenId was transferred by `_beforeTokenTransfer` hook + owner = ERC721.ownerOf(tokenId); + + // Clear approvals + delete _tokenApprovals[tokenId]; + + unchecked { + // Cannot overflow, as that would require more tokens to be burned/transferred + // out than the owner initially received through minting and transferring in. + _balances[owner] -= 1; + } + delete _owners[tokenId]; + + emit Transfer(owner, address(0), tokenId); + + _afterTokenTransfer(owner, address(0), tokenId, 1); + } + + /** + * @dev Transfers `tokenId` from `from` to `to`. + * As opposed to {transferFrom}, this imposes no restrictions on msg.sender. + * + * Requirements: + * + * - `to` cannot be the zero address. + * - `tokenId` token must be owned by `from`. + * + * Emits a {Transfer} event. + */ + function _transfer(address from, address to, uint256 tokenId) internal virtual { + require(ERC721.ownerOf(tokenId) == from, "ERC721: transfer from incorrect owner"); + require(to != address(0), "ERC721: transfer to the zero address"); + + _beforeTokenTransfer(from, to, tokenId, 1); + + // Check that tokenId was not transferred by `_beforeTokenTransfer` hook + require(ERC721.ownerOf(tokenId) == from, "ERC721: transfer from incorrect owner"); + + // Clear approvals from the previous owner + delete _tokenApprovals[tokenId]; + + unchecked { + // `_balances[from]` cannot overflow for the same reason as described in `_burn`: + // `from`'s balance is the number of token held, which is at least one before the current + // transfer. + // `_balances[to]` could overflow in the conditions described in `_mint`. That would require + // all 2**256 token ids to be minted, which in practice is impossible. + _balances[from] -= 1; + _balances[to] += 1; + } + _owners[tokenId] = to; + + emit Transfer(from, to, tokenId); + + _afterTokenTransfer(from, to, tokenId, 1); + } + + /** + * @dev Approve `to` to operate on `tokenId` + * + * Emits an {Approval} event. + */ + function _approve(address to, uint256 tokenId) internal virtual { + _tokenApprovals[tokenId] = to; + emit Approval(ERC721.ownerOf(tokenId), to, tokenId); + } + + /** + * @dev Approve `operator` to operate on all of `owner` tokens + * + * Emits an {ApprovalForAll} event. + */ + function _setApprovalForAll(address owner, address operator, bool approved) internal virtual { + require(owner != operator, "ERC721: approve to caller"); + _operatorApprovals[owner][operator] = approved; + emit ApprovalForAll(owner, operator, approved); + } + + /** + * @dev Reverts if the `tokenId` has not been minted yet. + */ + function _requireMinted(uint256 tokenId) internal view virtual { + require(_exists(tokenId), "ERC721: invalid token ID"); + } + + /** + * @dev Internal function to invoke {IERC721Receiver-onERC721Received} on a target address. + * The call is not executed if the target address is not a contract. + * + * @param from address representing the previous owner of the given token ID + * @param to target address that will receive the tokens + * @param tokenId uint256 ID of the token to be transferred + * @param data bytes optional data to send along with the call + * @return bool whether the call correctly returned the expected magic value + */ + function _checkOnERC721Received( + address from, + address to, + uint256 tokenId, + bytes memory data + ) private returns (bool) { + if (to.isContract()) { + try IERC721Receiver(to).onERC721Received(_msgSender(), from, tokenId, data) returns (bytes4 retval) { + return retval == IERC721Receiver.onERC721Received.selector; + } catch (bytes memory reason) { + if (reason.length == 0) { + revert("ERC721: transfer to non ERC721Receiver implementer"); + } else { + /// @solidity memory-safe-assembly + assembly { + revert(add(32, reason), mload(reason)) + } + } + } + } else { + return true; + } + } + + /** + * @dev Hook that is called before any token transfer. This includes minting and burning. If {ERC721Consecutive} is + * used, the hook may be called as part of a consecutive (batch) mint, as indicated by `batchSize` greater than 1. + * + * Calling conditions: + * + * - When `from` and `to` are both non-zero, ``from``'s tokens will be transferred to `to`. + * - When `from` is zero, the tokens will be minted for `to`. + * - When `to` is zero, ``from``'s tokens will be burned. + * - `from` and `to` are never both zero. + * - `batchSize` is non-zero. + * + * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks]. + */ + function _beforeTokenTransfer( + address from, + address to, + uint256 /* firstTokenId */, + uint256 batchSize + ) internal virtual { + if (batchSize > 1) { + if (from != address(0)) { + _balances[from] -= batchSize; + } + if (to != address(0)) { + _balances[to] += batchSize; + } + } + } + + /** + * @dev Hook that is called after any token transfer. This includes minting and burning. If {ERC721Consecutive} is + * used, the hook may be called as part of a consecutive (batch) mint, as indicated by `batchSize` greater than 1. + * + * Calling conditions: + * + * - When `from` and `to` are both non-zero, ``from``'s tokens were transferred to `to`. + * - When `from` is zero, the tokens were minted for `to`. + * - When `to` is zero, ``from``'s tokens were burned. + * - `from` and `to` are never both zero. + * - `batchSize` is non-zero. + * + * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks]. + */ + function _afterTokenTransfer(address from, address to, uint256 firstTokenId, uint256 batchSize) internal virtual {} +} diff --git a/lib/openzeppelin-contracts/contracts/token/ERC721/IERC721.sol b/lib/openzeppelin-contracts/contracts/token/ERC721/IERC721.sol new file mode 100644 index 0000000..7b60a9f --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/token/ERC721/IERC721.sol @@ -0,0 +1,132 @@ +// SPDX-License-Identifier: MIT +// OpenZeppelin Contracts (last updated v4.8.0) (token/ERC721/IERC721.sol) + +pragma solidity ^0.8.0; + +import "../../utils/introspection/IERC165.sol"; + +/** + * @dev Required interface of an ERC721 compliant contract. + */ +interface IERC721 is IERC165 { + /** + * @dev Emitted when `tokenId` token is transferred from `from` to `to`. + */ + event Transfer(address indexed from, address indexed to, uint256 indexed tokenId); + + /** + * @dev Emitted when `owner` enables `approved` to manage the `tokenId` token. + */ + event Approval(address indexed owner, address indexed approved, uint256 indexed tokenId); + + /** + * @dev Emitted when `owner` enables or disables (`approved`) `operator` to manage all of its assets. + */ + event ApprovalForAll(address indexed owner, address indexed operator, bool approved); + + /** + * @dev Returns the number of tokens in ``owner``'s account. + */ + function balanceOf(address owner) external view returns (uint256 balance); + + /** + * @dev Returns the owner of the `tokenId` token. + * + * Requirements: + * + * - `tokenId` must exist. + */ + function ownerOf(uint256 tokenId) external view returns (address owner); + + /** + * @dev Safely transfers `tokenId` token from `from` to `to`. + * + * Requirements: + * + * - `from` cannot be the zero address. + * - `to` cannot be the zero address. + * - `tokenId` token must exist and be owned by `from`. + * - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}. + * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer. + * + * Emits a {Transfer} event. + */ + function safeTransferFrom(address from, address to, uint256 tokenId, bytes calldata data) external; + + /** + * @dev Safely transfers `tokenId` token from `from` to `to`, checking first that contract recipients + * are aware of the ERC721 protocol to prevent tokens from being forever locked. + * + * Requirements: + * + * - `from` cannot be the zero address. + * - `to` cannot be the zero address. + * - `tokenId` token must exist and be owned by `from`. + * - If the caller is not `from`, it must have been allowed to move this token by either {approve} or {setApprovalForAll}. + * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer. + * + * Emits a {Transfer} event. + */ + function safeTransferFrom(address from, address to, uint256 tokenId) external; + + /** + * @dev Transfers `tokenId` token from `from` to `to`. + * + * WARNING: Note that the caller is responsible to confirm that the recipient is capable of receiving ERC721 + * or else they may be permanently lost. Usage of {safeTransferFrom} prevents loss, though the caller must + * understand this adds an external call which potentially creates a reentrancy vulnerability. + * + * Requirements: + * + * - `from` cannot be the zero address. + * - `to` cannot be the zero address. + * - `tokenId` token must be owned by `from`. + * - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}. + * + * Emits a {Transfer} event. + */ + function transferFrom(address from, address to, uint256 tokenId) external; + + /** + * @dev Gives permission to `to` to transfer `tokenId` token to another account. + * The approval is cleared when the token is transferred. + * + * Only a single account can be approved at a time, so approving the zero address clears previous approvals. + * + * Requirements: + * + * - The caller must own the token or be an approved operator. + * - `tokenId` must exist. + * + * Emits an {Approval} event. + */ + function approve(address to, uint256 tokenId) external; + + /** + * @dev Approve or remove `operator` as an operator for the caller. + * Operators can call {transferFrom} or {safeTransferFrom} for any token owned by the caller. + * + * Requirements: + * + * - The `operator` cannot be the caller. + * + * Emits an {ApprovalForAll} event. + */ + function setApprovalForAll(address operator, bool approved) external; + + /** + * @dev Returns the account approved for `tokenId` token. + * + * Requirements: + * + * - `tokenId` must exist. + */ + function getApproved(uint256 tokenId) external view returns (address operator); + + /** + * @dev Returns if the `operator` is allowed to manage all of the assets of `owner`. + * + * See {setApprovalForAll} + */ + function isApprovedForAll(address owner, address operator) external view returns (bool); +} diff --git a/lib/openzeppelin-contracts/contracts/token/ERC721/IERC721Receiver.sol b/lib/openzeppelin-contracts/contracts/token/ERC721/IERC721Receiver.sol new file mode 100644 index 0000000..de67209 --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/token/ERC721/IERC721Receiver.sol @@ -0,0 +1,27 @@ +// SPDX-License-Identifier: MIT +// OpenZeppelin Contracts (last updated v4.6.0) (token/ERC721/IERC721Receiver.sol) + +pragma solidity ^0.8.0; + +/** + * @title ERC721 token receiver interface + * @dev Interface for any contract that wants to support safeTransfers + * from ERC721 asset contracts. + */ +interface IERC721Receiver { + /** + * @dev Whenever an {IERC721} `tokenId` token is transferred to this contract via {IERC721-safeTransferFrom} + * by `operator` from `from`, this function is called. + * + * It must return its Solidity selector to confirm the token transfer. + * If any other value is returned or the interface is not implemented by the recipient, the transfer will be reverted. + * + * The selector can be obtained in Solidity with `IERC721Receiver.onERC721Received.selector`. + */ + function onERC721Received( + address operator, + address from, + uint256 tokenId, + bytes calldata data + ) external returns (bytes4); +} diff --git a/lib/openzeppelin-contracts/contracts/token/ERC721/README.adoc b/lib/openzeppelin-contracts/contracts/token/ERC721/README.adoc new file mode 100644 index 0000000..b3377af --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/token/ERC721/README.adoc @@ -0,0 +1,70 @@ += ERC 721 + +[.readme-notice] +NOTE: This document is better viewed at https://docs.openzeppelin.com/contracts/api/token/erc721 + +This set of interfaces, contracts, and utilities are all related to the https://eips.ethereum.org/EIPS/eip-721[ERC721 Non-Fungible Token Standard]. + +TIP: For a walk through on how to create an ERC721 token read our xref:ROOT:erc721.adoc[ERC721 guide]. + +The EIP specifies four interfaces: + +* {IERC721}: Core functionality required in all compliant implementation. +* {IERC721Metadata}: Optional extension that adds name, symbol, and token URI, almost always included. +* {IERC721Enumerable}: Optional extension that allows enumerating the tokens on chain, often not included since it requires large gas overhead. +* {IERC721Receiver}: An interface that must be implemented by contracts if they want to accept tokens through `safeTransferFrom`. + +OpenZeppelin Contracts provides implementations of all four interfaces: + +* {ERC721}: The core and metadata extensions, with a base URI mechanism. +* {ERC721Enumerable}: The enumerable extension. +* {ERC721Holder}: A bare bones implementation of the receiver interface. + +Additionally there are a few of other extensions: + +* {ERC721Consecutive}: An implementation of https://eips.ethereum.org/EIPS/eip-2309[ERC2309] for minting batchs of tokens during construction, in accordance with ERC721. +* {ERC721URIStorage}: A more flexible but more expensive way of storing metadata. +* {ERC721Votes}: Support for voting and vote delegation. +* {ERC721Royalty}: A way to signal royalty information following ERC2981. +* {ERC721Pausable}: A primitive to pause contract operation. +* {ERC721Burnable}: A way for token holders to burn their own tokens. + +NOTE: This core set of contracts is designed to be unopinionated, allowing developers to access the internal functions in ERC721 (such as <>) and expose them as external functions in the way they prefer. On the other hand, xref:ROOT:erc721.adoc#Presets[ERC721 Presets] (such as {ERC721PresetMinterPauserAutoId}) are designed using opinionated patterns to provide developers with ready to use, deployable contracts. + +== Core + +{{IERC721}} + +{{IERC721Metadata}} + +{{IERC721Enumerable}} + +{{ERC721}} + +{{ERC721Enumerable}} + +{{IERC721Receiver}} + +== Extensions + +{{ERC721Pausable}} + +{{ERC721Burnable}} + +{{ERC721Consecutive}} + +{{ERC721URIStorage}} + +{{ERC721Votes}} + +{{ERC721Royalty}} + +== Presets + +These contracts are preconfigured combinations of the above features. They can be used through inheritance or as models to copy and paste their source code. + +{{ERC721PresetMinterPauserAutoId}} + +== Utilities + +{{ERC721Holder}} diff --git a/lib/openzeppelin-contracts/contracts/token/ERC721/extensions/ERC721Burnable.sol b/lib/openzeppelin-contracts/contracts/token/ERC721/extensions/ERC721Burnable.sol new file mode 100644 index 0000000..0dc7dae --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/token/ERC721/extensions/ERC721Burnable.sol @@ -0,0 +1,26 @@ +// SPDX-License-Identifier: MIT +// OpenZeppelin Contracts (last updated v4.8.0) (token/ERC721/extensions/ERC721Burnable.sol) + +pragma solidity ^0.8.0; + +import "../ERC721.sol"; +import "../../../utils/Context.sol"; + +/** + * @title ERC721 Burnable Token + * @dev ERC721 Token that can be burned (destroyed). + */ +abstract contract ERC721Burnable is Context, ERC721 { + /** + * @dev Burns `tokenId`. See {ERC721-_burn}. + * + * Requirements: + * + * - The caller must own `tokenId` or be an approved operator. + */ + function burn(uint256 tokenId) public virtual { + //solhint-disable-next-line max-line-length + require(_isApprovedOrOwner(_msgSender(), tokenId), "ERC721: caller is not token owner or approved"); + _burn(tokenId); + } +} diff --git a/lib/openzeppelin-contracts/contracts/token/ERC721/extensions/ERC721Consecutive.sol b/lib/openzeppelin-contracts/contracts/token/ERC721/extensions/ERC721Consecutive.sol new file mode 100644 index 0000000..e6843f1 --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/token/ERC721/extensions/ERC721Consecutive.sol @@ -0,0 +1,143 @@ +// SPDX-License-Identifier: MIT +// OpenZeppelin Contracts (last updated v4.8.0) (token/ERC721/extensions/ERC721Consecutive.sol) + +pragma solidity ^0.8.0; + +import "../ERC721.sol"; +import "../../../interfaces/IERC2309.sol"; +import "../../../utils/Checkpoints.sol"; +import "../../../utils/structs/BitMaps.sol"; + +/** + * @dev Implementation of the ERC2309 "Consecutive Transfer Extension" as defined in + * https://eips.ethereum.org/EIPS/eip-2309[EIP-2309]. + * + * This extension allows the minting of large batches of tokens, during contract construction only. For upgradeable + * contracts this implies that batch minting is only available during proxy deployment, and not in subsequent upgrades. + * These batches are limited to 5000 tokens at a time by default to accommodate off-chain indexers. + * + * Using this extension removes the ability to mint single tokens during contract construction. This ability is + * regained after construction. During construction, only batch minting is allowed. + * + * IMPORTANT: This extension bypasses the hooks {_beforeTokenTransfer} and {_afterTokenTransfer} for tokens minted in + * batch. When using this extension, you should consider the {_beforeConsecutiveTokenTransfer} and + * {_afterConsecutiveTokenTransfer} hooks in addition to {_beforeTokenTransfer} and {_afterTokenTransfer}. + * + * IMPORTANT: When overriding {_afterTokenTransfer}, be careful about call ordering. {ownerOf} may return invalid + * values during the {_afterTokenTransfer} execution if the super call is not called first. To be safe, execute the + * super call before your custom logic. + * + * _Available since v4.8._ + */ +abstract contract ERC721Consecutive is IERC2309, ERC721 { + using BitMaps for BitMaps.BitMap; + using Checkpoints for Checkpoints.Trace160; + + Checkpoints.Trace160 private _sequentialOwnership; + BitMaps.BitMap private _sequentialBurn; + + /** + * @dev Maximum size of a batch of consecutive tokens. This is designed to limit stress on off-chain indexing + * services that have to record one entry per token, and have protections against "unreasonably large" batches of + * tokens. + * + * NOTE: Overriding the default value of 5000 will not cause on-chain issues, but may result in the asset not being + * correctly supported by off-chain indexing services (including marketplaces). + */ + function _maxBatchSize() internal view virtual returns (uint96) { + return 5000; + } + + /** + * @dev See {ERC721-_ownerOf}. Override that checks the sequential ownership structure for tokens that have + * been minted as part of a batch, and not yet transferred. + */ + function _ownerOf(uint256 tokenId) internal view virtual override returns (address) { + address owner = super._ownerOf(tokenId); + + // If token is owned by the core, or beyond consecutive range, return base value + if (owner != address(0) || tokenId > type(uint96).max) { + return owner; + } + + // Otherwise, check the token was not burned, and fetch ownership from the anchors + // Note: no need for safe cast, we know that tokenId <= type(uint96).max + return _sequentialBurn.get(tokenId) ? address(0) : address(_sequentialOwnership.lowerLookup(uint96(tokenId))); + } + + /** + * @dev Mint a batch of tokens of length `batchSize` for `to`. Returns the token id of the first token minted in the + * batch; if `batchSize` is 0, returns the number of consecutive ids minted so far. + * + * Requirements: + * + * - `batchSize` must not be greater than {_maxBatchSize}. + * - The function is called in the constructor of the contract (directly or indirectly). + * + * CAUTION: Does not emit a `Transfer` event. This is ERC721 compliant as long as it is done inside of the + * constructor, which is enforced by this function. + * + * CAUTION: Does not invoke `onERC721Received` on the receiver. + * + * Emits a {IERC2309-ConsecutiveTransfer} event. + */ + function _mintConsecutive(address to, uint96 batchSize) internal virtual returns (uint96) { + uint96 first = _totalConsecutiveSupply(); + + // minting a batch of size 0 is a no-op + if (batchSize > 0) { + require(!Address.isContract(address(this)), "ERC721Consecutive: batch minting restricted to constructor"); + require(to != address(0), "ERC721Consecutive: mint to the zero address"); + require(batchSize <= _maxBatchSize(), "ERC721Consecutive: batch too large"); + + // hook before + _beforeTokenTransfer(address(0), to, first, batchSize); + + // push an ownership checkpoint & emit event + uint96 last = first + batchSize - 1; + _sequentialOwnership.push(last, uint160(to)); + emit ConsecutiveTransfer(first, last, address(0), to); + + // hook after + _afterTokenTransfer(address(0), to, first, batchSize); + } + + return first; + } + + /** + * @dev See {ERC721-_mint}. Override version that restricts normal minting to after construction. + * + * Warning: Using {ERC721Consecutive} prevents using {_mint} during construction in favor of {_mintConsecutive}. + * After construction, {_mintConsecutive} is no longer available and {_mint} becomes available. + */ + function _mint(address to, uint256 tokenId) internal virtual override { + require(Address.isContract(address(this)), "ERC721Consecutive: can't mint during construction"); + super._mint(to, tokenId); + } + + /** + * @dev See {ERC721-_afterTokenTransfer}. Burning of tokens that have been sequentially minted must be explicit. + */ + function _afterTokenTransfer( + address from, + address to, + uint256 firstTokenId, + uint256 batchSize + ) internal virtual override { + if ( + to == address(0) && // if we burn + firstTokenId < _totalConsecutiveSupply() && // and the tokenId was minted in a batch + !_sequentialBurn.get(firstTokenId) // and the token was never marked as burnt + ) { + require(batchSize == 1, "ERC721Consecutive: batch burn not supported"); + _sequentialBurn.set(firstTokenId); + } + super._afterTokenTransfer(from, to, firstTokenId, batchSize); + } + + function _totalConsecutiveSupply() private view returns (uint96) { + (bool exists, uint96 latestId, ) = _sequentialOwnership.latestCheckpoint(); + return exists ? latestId + 1 : 0; + } +} diff --git a/lib/openzeppelin-contracts/contracts/token/ERC721/extensions/ERC721Enumerable.sol b/lib/openzeppelin-contracts/contracts/token/ERC721/extensions/ERC721Enumerable.sol new file mode 100644 index 0000000..aab81a9 --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/token/ERC721/extensions/ERC721Enumerable.sol @@ -0,0 +1,159 @@ +// SPDX-License-Identifier: MIT +// OpenZeppelin Contracts (last updated v4.8.0) (token/ERC721/extensions/ERC721Enumerable.sol) + +pragma solidity ^0.8.0; + +import "../ERC721.sol"; +import "./IERC721Enumerable.sol"; + +/** + * @dev This implements an optional extension of {ERC721} defined in the EIP that adds + * enumerability of all the token ids in the contract as well as all token ids owned by each + * account. + */ +abstract contract ERC721Enumerable is ERC721, IERC721Enumerable { + // Mapping from owner to list of owned token IDs + mapping(address => mapping(uint256 => uint256)) private _ownedTokens; + + // Mapping from token ID to index of the owner tokens list + mapping(uint256 => uint256) private _ownedTokensIndex; + + // Array with all token ids, used for enumeration + uint256[] private _allTokens; + + // Mapping from token id to position in the allTokens array + mapping(uint256 => uint256) private _allTokensIndex; + + /** + * @dev See {IERC165-supportsInterface}. + */ + function supportsInterface(bytes4 interfaceId) public view virtual override(IERC165, ERC721) returns (bool) { + return interfaceId == type(IERC721Enumerable).interfaceId || super.supportsInterface(interfaceId); + } + + /** + * @dev See {IERC721Enumerable-tokenOfOwnerByIndex}. + */ + function tokenOfOwnerByIndex(address owner, uint256 index) public view virtual override returns (uint256) { + require(index < ERC721.balanceOf(owner), "ERC721Enumerable: owner index out of bounds"); + return _ownedTokens[owner][index]; + } + + /** + * @dev See {IERC721Enumerable-totalSupply}. + */ + function totalSupply() public view virtual override returns (uint256) { + return _allTokens.length; + } + + /** + * @dev See {IERC721Enumerable-tokenByIndex}. + */ + function tokenByIndex(uint256 index) public view virtual override returns (uint256) { + require(index < ERC721Enumerable.totalSupply(), "ERC721Enumerable: global index out of bounds"); + return _allTokens[index]; + } + + /** + * @dev See {ERC721-_beforeTokenTransfer}. + */ + function _beforeTokenTransfer( + address from, + address to, + uint256 firstTokenId, + uint256 batchSize + ) internal virtual override { + super._beforeTokenTransfer(from, to, firstTokenId, batchSize); + + if (batchSize > 1) { + // Will only trigger during construction. Batch transferring (minting) is not available afterwards. + revert("ERC721Enumerable: consecutive transfers not supported"); + } + + uint256 tokenId = firstTokenId; + + if (from == address(0)) { + _addTokenToAllTokensEnumeration(tokenId); + } else if (from != to) { + _removeTokenFromOwnerEnumeration(from, tokenId); + } + if (to == address(0)) { + _removeTokenFromAllTokensEnumeration(tokenId); + } else if (to != from) { + _addTokenToOwnerEnumeration(to, tokenId); + } + } + + /** + * @dev Private function to add a token to this extension's ownership-tracking data structures. + * @param to address representing the new owner of the given token ID + * @param tokenId uint256 ID of the token to be added to the tokens list of the given address + */ + function _addTokenToOwnerEnumeration(address to, uint256 tokenId) private { + uint256 length = ERC721.balanceOf(to); + _ownedTokens[to][length] = tokenId; + _ownedTokensIndex[tokenId] = length; + } + + /** + * @dev Private function to add a token to this extension's token tracking data structures. + * @param tokenId uint256 ID of the token to be added to the tokens list + */ + function _addTokenToAllTokensEnumeration(uint256 tokenId) private { + _allTokensIndex[tokenId] = _allTokens.length; + _allTokens.push(tokenId); + } + + /** + * @dev Private function to remove a token from this extension's ownership-tracking data structures. Note that + * while the token is not assigned a new owner, the `_ownedTokensIndex` mapping is _not_ updated: this allows for + * gas optimizations e.g. when performing a transfer operation (avoiding double writes). + * This has O(1) time complexity, but alters the order of the _ownedTokens array. + * @param from address representing the previous owner of the given token ID + * @param tokenId uint256 ID of the token to be removed from the tokens list of the given address + */ + function _removeTokenFromOwnerEnumeration(address from, uint256 tokenId) private { + // To prevent a gap in from's tokens array, we store the last token in the index of the token to delete, and + // then delete the last slot (swap and pop). + + uint256 lastTokenIndex = ERC721.balanceOf(from) - 1; + uint256 tokenIndex = _ownedTokensIndex[tokenId]; + + // When the token to delete is the last token, the swap operation is unnecessary + if (tokenIndex != lastTokenIndex) { + uint256 lastTokenId = _ownedTokens[from][lastTokenIndex]; + + _ownedTokens[from][tokenIndex] = lastTokenId; // Move the last token to the slot of the to-delete token + _ownedTokensIndex[lastTokenId] = tokenIndex; // Update the moved token's index + } + + // This also deletes the contents at the last position of the array + delete _ownedTokensIndex[tokenId]; + delete _ownedTokens[from][lastTokenIndex]; + } + + /** + * @dev Private function to remove a token from this extension's token tracking data structures. + * This has O(1) time complexity, but alters the order of the _allTokens array. + * @param tokenId uint256 ID of the token to be removed from the tokens list + */ + function _removeTokenFromAllTokensEnumeration(uint256 tokenId) private { + // To prevent a gap in the tokens array, we store the last token in the index of the token to delete, and + // then delete the last slot (swap and pop). + + uint256 lastTokenIndex = _allTokens.length - 1; + uint256 tokenIndex = _allTokensIndex[tokenId]; + + // When the token to delete is the last token, the swap operation is unnecessary. However, since this occurs so + // rarely (when the last minted token is burnt) that we still do the swap here to avoid the gas cost of adding + // an 'if' statement (like in _removeTokenFromOwnerEnumeration) + uint256 lastTokenId = _allTokens[lastTokenIndex]; + + _allTokens[tokenIndex] = lastTokenId; // Move the last token to the slot of the to-delete token + _allTokensIndex[lastTokenId] = tokenIndex; // Update the moved token's index + + // This also deletes the contents at the last position of the array + delete _allTokensIndex[tokenId]; + _allTokens.pop(); + } +} diff --git a/lib/openzeppelin-contracts/contracts/token/ERC721/extensions/ERC721Pausable.sol b/lib/openzeppelin-contracts/contracts/token/ERC721/extensions/ERC721Pausable.sol new file mode 100644 index 0000000..4726540 --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/token/ERC721/extensions/ERC721Pausable.sol @@ -0,0 +1,34 @@ +// SPDX-License-Identifier: MIT +// OpenZeppelin Contracts (last updated v4.8.0) (token/ERC721/extensions/ERC721Pausable.sol) + +pragma solidity ^0.8.0; + +import "../ERC721.sol"; +import "../../../security/Pausable.sol"; + +/** + * @dev ERC721 token with pausable token transfers, minting and burning. + * + * Useful for scenarios such as preventing trades until the end of an evaluation + * period, or having an emergency switch for freezing all token transfers in the + * event of a large bug. + */ +abstract contract ERC721Pausable is ERC721, Pausable { + /** + * @dev See {ERC721-_beforeTokenTransfer}. + * + * Requirements: + * + * - the contract must not be paused. + */ + function _beforeTokenTransfer( + address from, + address to, + uint256 firstTokenId, + uint256 batchSize + ) internal virtual override { + super._beforeTokenTransfer(from, to, firstTokenId, batchSize); + + require(!paused(), "ERC721Pausable: token transfer while paused"); + } +} diff --git a/lib/openzeppelin-contracts/contracts/token/ERC721/extensions/ERC721Royalty.sol b/lib/openzeppelin-contracts/contracts/token/ERC721/extensions/ERC721Royalty.sol new file mode 100644 index 0000000..298e342 --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/token/ERC721/extensions/ERC721Royalty.sol @@ -0,0 +1,38 @@ +// SPDX-License-Identifier: MIT +// OpenZeppelin Contracts (last updated v4.8.0) (token/ERC721/extensions/ERC721Royalty.sol) + +pragma solidity ^0.8.0; + +import "../ERC721.sol"; +import "../../common/ERC2981.sol"; +import "../../../utils/introspection/ERC165.sol"; + +/** + * @dev Extension of ERC721 with the ERC2981 NFT Royalty Standard, a standardized way to retrieve royalty payment + * information. + * + * Royalty information can be specified globally for all token ids via {ERC2981-_setDefaultRoyalty}, and/or individually for + * specific token ids via {ERC2981-_setTokenRoyalty}. The latter takes precedence over the first. + * + * IMPORTANT: ERC-2981 only specifies a way to signal royalty information and does not enforce its payment. See + * https://eips.ethereum.org/EIPS/eip-2981#optional-royalty-payments[Rationale] in the EIP. Marketplaces are expected to + * voluntarily pay royalties together with sales, but note that this standard is not yet widely supported. + * + * _Available since v4.5._ + */ +abstract contract ERC721Royalty is ERC2981, ERC721 { + /** + * @dev See {IERC165-supportsInterface}. + */ + function supportsInterface(bytes4 interfaceId) public view virtual override(ERC721, ERC2981) returns (bool) { + return super.supportsInterface(interfaceId); + } + + /** + * @dev See {ERC721-_burn}. This override additionally clears the royalty information for the token. + */ + function _burn(uint256 tokenId) internal virtual override { + super._burn(tokenId); + _resetTokenRoyalty(tokenId); + } +} diff --git a/lib/openzeppelin-contracts/contracts/token/ERC721/extensions/ERC721URIStorage.sol b/lib/openzeppelin-contracts/contracts/token/ERC721/extensions/ERC721URIStorage.sol new file mode 100644 index 0000000..e83a5ed --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/token/ERC721/extensions/ERC721URIStorage.sol @@ -0,0 +1,62 @@ +// SPDX-License-Identifier: MIT +// OpenZeppelin Contracts (last updated v4.7.0) (token/ERC721/extensions/ERC721URIStorage.sol) + +pragma solidity ^0.8.0; + +import "../ERC721.sol"; + +/** + * @dev ERC721 token with storage based token URI management. + */ +abstract contract ERC721URIStorage is ERC721 { + using Strings for uint256; + + // Optional mapping for token URIs + mapping(uint256 => string) private _tokenURIs; + + /** + * @dev See {IERC721Metadata-tokenURI}. + */ + function tokenURI(uint256 tokenId) public view virtual override returns (string memory) { + _requireMinted(tokenId); + + string memory _tokenURI = _tokenURIs[tokenId]; + string memory base = _baseURI(); + + // If there is no base URI, return the token URI. + if (bytes(base).length == 0) { + return _tokenURI; + } + // If both are set, concatenate the baseURI and tokenURI (via abi.encodePacked). + if (bytes(_tokenURI).length > 0) { + return string(abi.encodePacked(base, _tokenURI)); + } + + return super.tokenURI(tokenId); + } + + /** + * @dev Sets `_tokenURI` as the tokenURI of `tokenId`. + * + * Requirements: + * + * - `tokenId` must exist. + */ + function _setTokenURI(uint256 tokenId, string memory _tokenURI) internal virtual { + require(_exists(tokenId), "ERC721URIStorage: URI set of nonexistent token"); + _tokenURIs[tokenId] = _tokenURI; + } + + /** + * @dev See {ERC721-_burn}. This override additionally checks to see if a + * token-specific URI was set for the token, and if so, it deletes the token URI from + * the storage mapping. + */ + function _burn(uint256 tokenId) internal virtual override { + super._burn(tokenId); + + if (bytes(_tokenURIs[tokenId]).length != 0) { + delete _tokenURIs[tokenId]; + } + } +} diff --git a/lib/openzeppelin-contracts/contracts/token/ERC721/extensions/ERC721Votes.sol b/lib/openzeppelin-contracts/contracts/token/ERC721/extensions/ERC721Votes.sol new file mode 100644 index 0000000..8e6500e --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/token/ERC721/extensions/ERC721Votes.sol @@ -0,0 +1,41 @@ +// SPDX-License-Identifier: MIT +// OpenZeppelin Contracts (last updated v4.8.0) (token/ERC721/extensions/ERC721Votes.sol) + +pragma solidity ^0.8.0; + +import "../ERC721.sol"; +import "../../../governance/utils/Votes.sol"; + +/** + * @dev Extension of ERC721 to support voting and delegation as implemented by {Votes}, where each individual NFT counts + * as 1 vote unit. + * + * Tokens do not count as votes until they are delegated, because votes must be tracked which incurs an additional cost + * on every transfer. Token holders can either delegate to a trusted representative who will decide how to make use of + * the votes in governance decisions, or they can delegate to themselves to be their own representative. + * + * _Available since v4.5._ + */ +abstract contract ERC721Votes is ERC721, Votes { + /** + * @dev See {ERC721-_afterTokenTransfer}. Adjusts votes when tokens are transferred. + * + * Emits a {IVotes-DelegateVotesChanged} event. + */ + function _afterTokenTransfer( + address from, + address to, + uint256 firstTokenId, + uint256 batchSize + ) internal virtual override { + _transferVotingUnits(from, to, batchSize); + super._afterTokenTransfer(from, to, firstTokenId, batchSize); + } + + /** + * @dev Returns the balance of `account`. + */ + function _getVotingUnits(address account) internal view virtual override returns (uint256) { + return balanceOf(account); + } +} diff --git a/lib/openzeppelin-contracts/contracts/token/ERC721/extensions/IERC721Enumerable.sol b/lib/openzeppelin-contracts/contracts/token/ERC721/extensions/IERC721Enumerable.sol new file mode 100644 index 0000000..dfea427 --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/token/ERC721/extensions/IERC721Enumerable.sol @@ -0,0 +1,29 @@ +// SPDX-License-Identifier: MIT +// OpenZeppelin Contracts (last updated v4.5.0) (token/ERC721/extensions/IERC721Enumerable.sol) + +pragma solidity ^0.8.0; + +import "../IERC721.sol"; + +/** + * @title ERC-721 Non-Fungible Token Standard, optional enumeration extension + * @dev See https://eips.ethereum.org/EIPS/eip-721 + */ +interface IERC721Enumerable is IERC721 { + /** + * @dev Returns the total amount of tokens stored by the contract. + */ + function totalSupply() external view returns (uint256); + + /** + * @dev Returns a token ID owned by `owner` at a given `index` of its token list. + * Use along with {balanceOf} to enumerate all of ``owner``'s tokens. + */ + function tokenOfOwnerByIndex(address owner, uint256 index) external view returns (uint256); + + /** + * @dev Returns a token ID at a given `index` of all the tokens stored by the contract. + * Use along with {totalSupply} to enumerate all tokens. + */ + function tokenByIndex(uint256 index) external view returns (uint256); +} diff --git a/lib/openzeppelin-contracts/contracts/token/ERC721/extensions/IERC721Metadata.sol b/lib/openzeppelin-contracts/contracts/token/ERC721/extensions/IERC721Metadata.sol new file mode 100644 index 0000000..dca77ba --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/token/ERC721/extensions/IERC721Metadata.sol @@ -0,0 +1,27 @@ +// SPDX-License-Identifier: MIT +// OpenZeppelin Contracts v4.4.1 (token/ERC721/extensions/IERC721Metadata.sol) + +pragma solidity ^0.8.0; + +import "../IERC721.sol"; + +/** + * @title ERC-721 Non-Fungible Token Standard, optional metadata extension + * @dev See https://eips.ethereum.org/EIPS/eip-721 + */ +interface IERC721Metadata is IERC721 { + /** + * @dev Returns the token collection name. + */ + function name() external view returns (string memory); + + /** + * @dev Returns the token collection symbol. + */ + function symbol() external view returns (string memory); + + /** + * @dev Returns the Uniform Resource Identifier (URI) for `tokenId` token. + */ + function tokenURI(uint256 tokenId) external view returns (string memory); +} diff --git a/lib/openzeppelin-contracts/contracts/token/ERC721/extensions/draft-ERC721Votes.sol b/lib/openzeppelin-contracts/contracts/token/ERC721/extensions/draft-ERC721Votes.sol new file mode 100644 index 0000000..c6aa7c5 --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/token/ERC721/extensions/draft-ERC721Votes.sol @@ -0,0 +1,9 @@ +// SPDX-License-Identifier: MIT +// OpenZeppelin Contracts (last updated v4.8.0) (token/ERC721/extensions/draft-ERC721Votes.sol) + +pragma solidity ^0.8.0; + +// ERC721Votes was marked as draft due to the EIP-712 dependency. +// EIP-712 is Final as of 2022-08-11. This file is deprecated. + +import "./ERC721Votes.sol"; diff --git a/lib/openzeppelin-contracts/contracts/token/ERC721/presets/ERC721PresetMinterPauserAutoId.sol b/lib/openzeppelin-contracts/contracts/token/ERC721/presets/ERC721PresetMinterPauserAutoId.sol new file mode 100644 index 0000000..478e580 --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/token/ERC721/presets/ERC721PresetMinterPauserAutoId.sol @@ -0,0 +1,132 @@ +// SPDX-License-Identifier: MIT +// OpenZeppelin Contracts (last updated v4.8.0) (token/ERC721/presets/ERC721PresetMinterPauserAutoId.sol) + +pragma solidity ^0.8.0; + +import "../ERC721.sol"; +import "../extensions/ERC721Enumerable.sol"; +import "../extensions/ERC721Burnable.sol"; +import "../extensions/ERC721Pausable.sol"; +import "../../../access/AccessControlEnumerable.sol"; +import "../../../utils/Context.sol"; +import "../../../utils/Counters.sol"; + +/** + * @dev {ERC721} token, including: + * + * - ability for holders to burn (destroy) their tokens + * - a minter role that allows for token minting (creation) + * - a pauser role that allows to stop all token transfers + * - token ID and URI autogeneration + * + * This contract uses {AccessControl} to lock permissioned functions using the + * different roles - head to its documentation for details. + * + * The account that deploys the contract will be granted the minter and pauser + * roles, as well as the default admin role, which will let it grant both minter + * and pauser roles to other accounts. + * + * _Deprecated in favor of https://wizard.openzeppelin.com/[Contracts Wizard]._ + */ +contract ERC721PresetMinterPauserAutoId is + Context, + AccessControlEnumerable, + ERC721Enumerable, + ERC721Burnable, + ERC721Pausable +{ + using Counters for Counters.Counter; + + bytes32 public constant MINTER_ROLE = keccak256("MINTER_ROLE"); + bytes32 public constant PAUSER_ROLE = keccak256("PAUSER_ROLE"); + + Counters.Counter private _tokenIdTracker; + + string private _baseTokenURI; + + /** + * @dev Grants `DEFAULT_ADMIN_ROLE`, `MINTER_ROLE` and `PAUSER_ROLE` to the + * account that deploys the contract. + * + * Token URIs will be autogenerated based on `baseURI` and their token IDs. + * See {ERC721-tokenURI}. + */ + constructor(string memory name, string memory symbol, string memory baseTokenURI) ERC721(name, symbol) { + _baseTokenURI = baseTokenURI; + + _setupRole(DEFAULT_ADMIN_ROLE, _msgSender()); + + _setupRole(MINTER_ROLE, _msgSender()); + _setupRole(PAUSER_ROLE, _msgSender()); + } + + function _baseURI() internal view virtual override returns (string memory) { + return _baseTokenURI; + } + + /** + * @dev Creates a new token for `to`. Its token ID will be automatically + * assigned (and available on the emitted {IERC721-Transfer} event), and the token + * URI autogenerated based on the base URI passed at construction. + * + * See {ERC721-_mint}. + * + * Requirements: + * + * - the caller must have the `MINTER_ROLE`. + */ + function mint(address to) public virtual { + require(hasRole(MINTER_ROLE, _msgSender()), "ERC721PresetMinterPauserAutoId: must have minter role to mint"); + + // We cannot just use balanceOf to create the new tokenId because tokens + // can be burned (destroyed), so we need a separate counter. + _mint(to, _tokenIdTracker.current()); + _tokenIdTracker.increment(); + } + + /** + * @dev Pauses all token transfers. + * + * See {ERC721Pausable} and {Pausable-_pause}. + * + * Requirements: + * + * - the caller must have the `PAUSER_ROLE`. + */ + function pause() public virtual { + require(hasRole(PAUSER_ROLE, _msgSender()), "ERC721PresetMinterPauserAutoId: must have pauser role to pause"); + _pause(); + } + + /** + * @dev Unpauses all token transfers. + * + * See {ERC721Pausable} and {Pausable-_unpause}. + * + * Requirements: + * + * - the caller must have the `PAUSER_ROLE`. + */ + function unpause() public virtual { + require(hasRole(PAUSER_ROLE, _msgSender()), "ERC721PresetMinterPauserAutoId: must have pauser role to unpause"); + _unpause(); + } + + function _beforeTokenTransfer( + address from, + address to, + uint256 firstTokenId, + uint256 batchSize + ) internal virtual override(ERC721, ERC721Enumerable, ERC721Pausable) { + super._beforeTokenTransfer(from, to, firstTokenId, batchSize); + } + + /** + * @dev See {IERC165-supportsInterface}. + */ + function supportsInterface( + bytes4 interfaceId + ) public view virtual override(AccessControlEnumerable, ERC721, ERC721Enumerable) returns (bool) { + return super.supportsInterface(interfaceId); + } +} diff --git a/lib/openzeppelin-contracts/contracts/token/ERC721/presets/README.md b/lib/openzeppelin-contracts/contracts/token/ERC721/presets/README.md new file mode 100644 index 0000000..468200b --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/token/ERC721/presets/README.md @@ -0,0 +1 @@ +Contract presets are now deprecated in favor of [Contracts Wizard](https://wizard.openzeppelin.com/) as a more powerful alternative. diff --git a/lib/openzeppelin-contracts/contracts/token/ERC721/utils/ERC721Holder.sol b/lib/openzeppelin-contracts/contracts/token/ERC721/utils/ERC721Holder.sol new file mode 100644 index 0000000..cfa533a --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/token/ERC721/utils/ERC721Holder.sol @@ -0,0 +1,23 @@ +// SPDX-License-Identifier: MIT +// OpenZeppelin Contracts v4.4.1 (token/ERC721/utils/ERC721Holder.sol) + +pragma solidity ^0.8.0; + +import "../IERC721Receiver.sol"; + +/** + * @dev Implementation of the {IERC721Receiver} interface. + * + * Accepts all token transfers. + * Make sure the contract is able to use its token with {IERC721-safeTransferFrom}, {IERC721-approve} or {IERC721-setApprovalForAll}. + */ +contract ERC721Holder is IERC721Receiver { + /** + * @dev See {IERC721Receiver-onERC721Received}. + * + * Always returns `IERC721Receiver.onERC721Received.selector`. + */ + function onERC721Received(address, address, uint256, bytes memory) public virtual override returns (bytes4) { + return this.onERC721Received.selector; + } +} diff --git a/lib/openzeppelin-contracts/contracts/token/ERC777/ERC777.sol b/lib/openzeppelin-contracts/contracts/token/ERC777/ERC777.sol new file mode 100644 index 0000000..c1503c4 --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/token/ERC777/ERC777.sol @@ -0,0 +1,512 @@ +// SPDX-License-Identifier: MIT +// OpenZeppelin Contracts (last updated v4.8.0) (token/ERC777/ERC777.sol) + +pragma solidity ^0.8.0; + +import "./IERC777.sol"; +import "./IERC777Recipient.sol"; +import "./IERC777Sender.sol"; +import "../ERC20/IERC20.sol"; +import "../../utils/Address.sol"; +import "../../utils/Context.sol"; +import "../../utils/introspection/IERC1820Registry.sol"; + +/** + * @dev Implementation of the {IERC777} interface. + * + * This implementation is agnostic to the way tokens are created. This means + * that a supply mechanism has to be added in a derived contract using {_mint}. + * + * Support for ERC20 is included in this contract, as specified by the EIP: both + * the ERC777 and ERC20 interfaces can be safely used when interacting with it. + * Both {IERC777-Sent} and {IERC20-Transfer} events are emitted on token + * movements. + * + * Additionally, the {IERC777-granularity} value is hard-coded to `1`, meaning that there + * are no special restrictions in the amount of tokens that created, moved, or + * destroyed. This makes integration with ERC20 applications seamless. + */ +contract ERC777 is Context, IERC777, IERC20 { + using Address for address; + + IERC1820Registry internal constant _ERC1820_REGISTRY = IERC1820Registry(0x1820a4B7618BdE71Dce8cdc73aAB6C95905faD24); + + mapping(address => uint256) private _balances; + + uint256 private _totalSupply; + + string private _name; + string private _symbol; + + bytes32 private constant _TOKENS_SENDER_INTERFACE_HASH = keccak256("ERC777TokensSender"); + bytes32 private constant _TOKENS_RECIPIENT_INTERFACE_HASH = keccak256("ERC777TokensRecipient"); + + // This isn't ever read from - it's only used to respond to the defaultOperators query. + address[] private _defaultOperatorsArray; + + // Immutable, but accounts may revoke them (tracked in __revokedDefaultOperators). + mapping(address => bool) private _defaultOperators; + + // For each account, a mapping of its operators and revoked default operators. + mapping(address => mapping(address => bool)) private _operators; + mapping(address => mapping(address => bool)) private _revokedDefaultOperators; + + // ERC20-allowances + mapping(address => mapping(address => uint256)) private _allowances; + + /** + * @dev `defaultOperators` may be an empty array. + */ + constructor(string memory name_, string memory symbol_, address[] memory defaultOperators_) { + _name = name_; + _symbol = symbol_; + + _defaultOperatorsArray = defaultOperators_; + for (uint256 i = 0; i < defaultOperators_.length; i++) { + _defaultOperators[defaultOperators_[i]] = true; + } + + // register interfaces + _ERC1820_REGISTRY.setInterfaceImplementer(address(this), keccak256("ERC777Token"), address(this)); + _ERC1820_REGISTRY.setInterfaceImplementer(address(this), keccak256("ERC20Token"), address(this)); + } + + /** + * @dev See {IERC777-name}. + */ + function name() public view virtual override returns (string memory) { + return _name; + } + + /** + * @dev See {IERC777-symbol}. + */ + function symbol() public view virtual override returns (string memory) { + return _symbol; + } + + /** + * @dev See {ERC20-decimals}. + * + * Always returns 18, as per the + * [ERC777 EIP](https://eips.ethereum.org/EIPS/eip-777#backward-compatibility). + */ + function decimals() public pure virtual returns (uint8) { + return 18; + } + + /** + * @dev See {IERC777-granularity}. + * + * This implementation always returns `1`. + */ + function granularity() public view virtual override returns (uint256) { + return 1; + } + + /** + * @dev See {IERC777-totalSupply}. + */ + function totalSupply() public view virtual override(IERC20, IERC777) returns (uint256) { + return _totalSupply; + } + + /** + * @dev Returns the amount of tokens owned by an account (`tokenHolder`). + */ + function balanceOf(address tokenHolder) public view virtual override(IERC20, IERC777) returns (uint256) { + return _balances[tokenHolder]; + } + + /** + * @dev See {IERC777-send}. + * + * Also emits a {IERC20-Transfer} event for ERC20 compatibility. + */ + function send(address recipient, uint256 amount, bytes memory data) public virtual override { + _send(_msgSender(), recipient, amount, data, "", true); + } + + /** + * @dev See {IERC20-transfer}. + * + * Unlike `send`, `recipient` is _not_ required to implement the {IERC777Recipient} + * interface if it is a contract. + * + * Also emits a {Sent} event. + */ + function transfer(address recipient, uint256 amount) public virtual override returns (bool) { + _send(_msgSender(), recipient, amount, "", "", false); + return true; + } + + /** + * @dev See {IERC777-burn}. + * + * Also emits a {IERC20-Transfer} event for ERC20 compatibility. + */ + function burn(uint256 amount, bytes memory data) public virtual override { + _burn(_msgSender(), amount, data, ""); + } + + /** + * @dev See {IERC777-isOperatorFor}. + */ + function isOperatorFor(address operator, address tokenHolder) public view virtual override returns (bool) { + return + operator == tokenHolder || + (_defaultOperators[operator] && !_revokedDefaultOperators[tokenHolder][operator]) || + _operators[tokenHolder][operator]; + } + + /** + * @dev See {IERC777-authorizeOperator}. + */ + function authorizeOperator(address operator) public virtual override { + require(_msgSender() != operator, "ERC777: authorizing self as operator"); + + if (_defaultOperators[operator]) { + delete _revokedDefaultOperators[_msgSender()][operator]; + } else { + _operators[_msgSender()][operator] = true; + } + + emit AuthorizedOperator(operator, _msgSender()); + } + + /** + * @dev See {IERC777-revokeOperator}. + */ + function revokeOperator(address operator) public virtual override { + require(operator != _msgSender(), "ERC777: revoking self as operator"); + + if (_defaultOperators[operator]) { + _revokedDefaultOperators[_msgSender()][operator] = true; + } else { + delete _operators[_msgSender()][operator]; + } + + emit RevokedOperator(operator, _msgSender()); + } + + /** + * @dev See {IERC777-defaultOperators}. + */ + function defaultOperators() public view virtual override returns (address[] memory) { + return _defaultOperatorsArray; + } + + /** + * @dev See {IERC777-operatorSend}. + * + * Emits {Sent} and {IERC20-Transfer} events. + */ + function operatorSend( + address sender, + address recipient, + uint256 amount, + bytes memory data, + bytes memory operatorData + ) public virtual override { + require(isOperatorFor(_msgSender(), sender), "ERC777: caller is not an operator for holder"); + _send(sender, recipient, amount, data, operatorData, true); + } + + /** + * @dev See {IERC777-operatorBurn}. + * + * Emits {Burned} and {IERC20-Transfer} events. + */ + function operatorBurn( + address account, + uint256 amount, + bytes memory data, + bytes memory operatorData + ) public virtual override { + require(isOperatorFor(_msgSender(), account), "ERC777: caller is not an operator for holder"); + _burn(account, amount, data, operatorData); + } + + /** + * @dev See {IERC20-allowance}. + * + * Note that operator and allowance concepts are orthogonal: operators may + * not have allowance, and accounts with allowance may not be operators + * themselves. + */ + function allowance(address holder, address spender) public view virtual override returns (uint256) { + return _allowances[holder][spender]; + } + + /** + * @dev See {IERC20-approve}. + * + * NOTE: If `value` is the maximum `uint256`, the allowance is not updated on + * `transferFrom`. This is semantically equivalent to an infinite approval. + * + * Note that accounts cannot have allowance issued by their operators. + */ + function approve(address spender, uint256 value) public virtual override returns (bool) { + address holder = _msgSender(); + _approve(holder, spender, value); + return true; + } + + /** + * @dev See {IERC20-transferFrom}. + * + * NOTE: Does not update the allowance if the current allowance + * is the maximum `uint256`. + * + * Note that operator and allowance concepts are orthogonal: operators cannot + * call `transferFrom` (unless they have allowance), and accounts with + * allowance cannot call `operatorSend` (unless they are operators). + * + * Emits {Sent}, {IERC20-Transfer} and {IERC20-Approval} events. + */ + function transferFrom(address holder, address recipient, uint256 amount) public virtual override returns (bool) { + address spender = _msgSender(); + _spendAllowance(holder, spender, amount); + _send(holder, recipient, amount, "", "", false); + return true; + } + + /** + * @dev Creates `amount` tokens and assigns them to `account`, increasing + * the total supply. + * + * If a send hook is registered for `account`, the corresponding function + * will be called with the caller address as the `operator` and with + * `userData` and `operatorData`. + * + * See {IERC777Sender} and {IERC777Recipient}. + * + * Emits {Minted} and {IERC20-Transfer} events. + * + * Requirements + * + * - `account` cannot be the zero address. + * - if `account` is a contract, it must implement the {IERC777Recipient} + * interface. + */ + function _mint(address account, uint256 amount, bytes memory userData, bytes memory operatorData) internal virtual { + _mint(account, amount, userData, operatorData, true); + } + + /** + * @dev Creates `amount` tokens and assigns them to `account`, increasing + * the total supply. + * + * If `requireReceptionAck` is set to true, and if a send hook is + * registered for `account`, the corresponding function will be called with + * `operator`, `data` and `operatorData`. + * + * See {IERC777Sender} and {IERC777Recipient}. + * + * Emits {Minted} and {IERC20-Transfer} events. + * + * Requirements + * + * - `account` cannot be the zero address. + * - if `account` is a contract, it must implement the {IERC777Recipient} + * interface. + */ + function _mint( + address account, + uint256 amount, + bytes memory userData, + bytes memory operatorData, + bool requireReceptionAck + ) internal virtual { + require(account != address(0), "ERC777: mint to the zero address"); + + address operator = _msgSender(); + + _beforeTokenTransfer(operator, address(0), account, amount); + + // Update state variables + _totalSupply += amount; + _balances[account] += amount; + + _callTokensReceived(operator, address(0), account, amount, userData, operatorData, requireReceptionAck); + + emit Minted(operator, account, amount, userData, operatorData); + emit Transfer(address(0), account, amount); + } + + /** + * @dev Send tokens + * @param from address token holder address + * @param to address recipient address + * @param amount uint256 amount of tokens to transfer + * @param userData bytes extra information provided by the token holder (if any) + * @param operatorData bytes extra information provided by the operator (if any) + * @param requireReceptionAck if true, contract recipients are required to implement ERC777TokensRecipient + */ + function _send( + address from, + address to, + uint256 amount, + bytes memory userData, + bytes memory operatorData, + bool requireReceptionAck + ) internal virtual { + require(from != address(0), "ERC777: transfer from the zero address"); + require(to != address(0), "ERC777: transfer to the zero address"); + + address operator = _msgSender(); + + _callTokensToSend(operator, from, to, amount, userData, operatorData); + + _move(operator, from, to, amount, userData, operatorData); + + _callTokensReceived(operator, from, to, amount, userData, operatorData, requireReceptionAck); + } + + /** + * @dev Burn tokens + * @param from address token holder address + * @param amount uint256 amount of tokens to burn + * @param data bytes extra information provided by the token holder + * @param operatorData bytes extra information provided by the operator (if any) + */ + function _burn(address from, uint256 amount, bytes memory data, bytes memory operatorData) internal virtual { + require(from != address(0), "ERC777: burn from the zero address"); + + address operator = _msgSender(); + + _callTokensToSend(operator, from, address(0), amount, data, operatorData); + + _beforeTokenTransfer(operator, from, address(0), amount); + + // Update state variables + uint256 fromBalance = _balances[from]; + require(fromBalance >= amount, "ERC777: burn amount exceeds balance"); + unchecked { + _balances[from] = fromBalance - amount; + } + _totalSupply -= amount; + + emit Burned(operator, from, amount, data, operatorData); + emit Transfer(from, address(0), amount); + } + + function _move( + address operator, + address from, + address to, + uint256 amount, + bytes memory userData, + bytes memory operatorData + ) private { + _beforeTokenTransfer(operator, from, to, amount); + + uint256 fromBalance = _balances[from]; + require(fromBalance >= amount, "ERC777: transfer amount exceeds balance"); + unchecked { + _balances[from] = fromBalance - amount; + } + _balances[to] += amount; + + emit Sent(operator, from, to, amount, userData, operatorData); + emit Transfer(from, to, amount); + } + + /** + * @dev See {ERC20-_approve}. + * + * Note that accounts cannot have allowance issued by their operators. + */ + function _approve(address holder, address spender, uint256 value) internal virtual { + require(holder != address(0), "ERC777: approve from the zero address"); + require(spender != address(0), "ERC777: approve to the zero address"); + + _allowances[holder][spender] = value; + emit Approval(holder, spender, value); + } + + /** + * @dev Call from.tokensToSend() if the interface is registered + * @param operator address operator requesting the transfer + * @param from address token holder address + * @param to address recipient address + * @param amount uint256 amount of tokens to transfer + * @param userData bytes extra information provided by the token holder (if any) + * @param operatorData bytes extra information provided by the operator (if any) + */ + function _callTokensToSend( + address operator, + address from, + address to, + uint256 amount, + bytes memory userData, + bytes memory operatorData + ) private { + address implementer = _ERC1820_REGISTRY.getInterfaceImplementer(from, _TOKENS_SENDER_INTERFACE_HASH); + if (implementer != address(0)) { + IERC777Sender(implementer).tokensToSend(operator, from, to, amount, userData, operatorData); + } + } + + /** + * @dev Call to.tokensReceived() if the interface is registered. Reverts if the recipient is a contract but + * tokensReceived() was not registered for the recipient + * @param operator address operator requesting the transfer + * @param from address token holder address + * @param to address recipient address + * @param amount uint256 amount of tokens to transfer + * @param userData bytes extra information provided by the token holder (if any) + * @param operatorData bytes extra information provided by the operator (if any) + * @param requireReceptionAck if true, contract recipients are required to implement ERC777TokensRecipient + */ + function _callTokensReceived( + address operator, + address from, + address to, + uint256 amount, + bytes memory userData, + bytes memory operatorData, + bool requireReceptionAck + ) private { + address implementer = _ERC1820_REGISTRY.getInterfaceImplementer(to, _TOKENS_RECIPIENT_INTERFACE_HASH); + if (implementer != address(0)) { + IERC777Recipient(implementer).tokensReceived(operator, from, to, amount, userData, operatorData); + } else if (requireReceptionAck) { + require(!to.isContract(), "ERC777: token recipient contract has no implementer for ERC777TokensRecipient"); + } + } + + /** + * @dev Updates `owner` s allowance for `spender` based on spent `amount`. + * + * Does not update the allowance amount in case of infinite allowance. + * Revert if not enough allowance is available. + * + * Might emit an {IERC20-Approval} event. + */ + function _spendAllowance(address owner, address spender, uint256 amount) internal virtual { + uint256 currentAllowance = allowance(owner, spender); + if (currentAllowance != type(uint256).max) { + require(currentAllowance >= amount, "ERC777: insufficient allowance"); + unchecked { + _approve(owner, spender, currentAllowance - amount); + } + } + } + + /** + * @dev Hook that is called before any token transfer. This includes + * calls to {send}, {transfer}, {operatorSend}, minting and burning. + * + * Calling conditions: + * + * - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens + * will be to transferred to `to`. + * - when `from` is zero, `amount` tokens will be minted for `to`. + * - when `to` is zero, `amount` of ``from``'s tokens will be burned. + * - `from` and `to` are never both zero. + * + * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks]. + */ + function _beforeTokenTransfer(address operator, address from, address to, uint256 amount) internal virtual {} +} diff --git a/lib/openzeppelin-contracts/contracts/token/ERC777/IERC777.sol b/lib/openzeppelin-contracts/contracts/token/ERC777/IERC777.sol new file mode 100644 index 0000000..d3bede6 --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/token/ERC777/IERC777.sol @@ -0,0 +1,200 @@ +// SPDX-License-Identifier: MIT +// OpenZeppelin Contracts (last updated v4.8.0) (token/ERC777/IERC777.sol) + +pragma solidity ^0.8.0; + +/** + * @dev Interface of the ERC777Token standard as defined in the EIP. + * + * This contract uses the + * https://eips.ethereum.org/EIPS/eip-1820[ERC1820 registry standard] to let + * token holders and recipients react to token movements by using setting implementers + * for the associated interfaces in said registry. See {IERC1820Registry} and + * {ERC1820Implementer}. + */ +interface IERC777 { + /** + * @dev Emitted when `amount` tokens are created by `operator` and assigned to `to`. + * + * Note that some additional user `data` and `operatorData` can be logged in the event. + */ + event Minted(address indexed operator, address indexed to, uint256 amount, bytes data, bytes operatorData); + + /** + * @dev Emitted when `operator` destroys `amount` tokens from `account`. + * + * Note that some additional user `data` and `operatorData` can be logged in the event. + */ + event Burned(address indexed operator, address indexed from, uint256 amount, bytes data, bytes operatorData); + + /** + * @dev Emitted when `operator` is made operator for `tokenHolder`. + */ + event AuthorizedOperator(address indexed operator, address indexed tokenHolder); + + /** + * @dev Emitted when `operator` is revoked its operator status for `tokenHolder`. + */ + event RevokedOperator(address indexed operator, address indexed tokenHolder); + + /** + * @dev Returns the name of the token. + */ + function name() external view returns (string memory); + + /** + * @dev Returns the symbol of the token, usually a shorter version of the + * name. + */ + function symbol() external view returns (string memory); + + /** + * @dev Returns the smallest part of the token that is not divisible. This + * means all token operations (creation, movement and destruction) must have + * amounts that are a multiple of this number. + * + * For most token contracts, this value will equal 1. + */ + function granularity() external view returns (uint256); + + /** + * @dev Returns the amount of tokens in existence. + */ + function totalSupply() external view returns (uint256); + + /** + * @dev Returns the amount of tokens owned by an account (`owner`). + */ + function balanceOf(address owner) external view returns (uint256); + + /** + * @dev Moves `amount` tokens from the caller's account to `recipient`. + * + * If send or receive hooks are registered for the caller and `recipient`, + * the corresponding functions will be called with `data` and empty + * `operatorData`. See {IERC777Sender} and {IERC777Recipient}. + * + * Emits a {Sent} event. + * + * Requirements + * + * - the caller must have at least `amount` tokens. + * - `recipient` cannot be the zero address. + * - if `recipient` is a contract, it must implement the {IERC777Recipient} + * interface. + */ + function send(address recipient, uint256 amount, bytes calldata data) external; + + /** + * @dev Destroys `amount` tokens from the caller's account, reducing the + * total supply. + * + * If a send hook is registered for the caller, the corresponding function + * will be called with `data` and empty `operatorData`. See {IERC777Sender}. + * + * Emits a {Burned} event. + * + * Requirements + * + * - the caller must have at least `amount` tokens. + */ + function burn(uint256 amount, bytes calldata data) external; + + /** + * @dev Returns true if an account is an operator of `tokenHolder`. + * Operators can send and burn tokens on behalf of their owners. All + * accounts are their own operator. + * + * See {operatorSend} and {operatorBurn}. + */ + function isOperatorFor(address operator, address tokenHolder) external view returns (bool); + + /** + * @dev Make an account an operator of the caller. + * + * See {isOperatorFor}. + * + * Emits an {AuthorizedOperator} event. + * + * Requirements + * + * - `operator` cannot be calling address. + */ + function authorizeOperator(address operator) external; + + /** + * @dev Revoke an account's operator status for the caller. + * + * See {isOperatorFor} and {defaultOperators}. + * + * Emits a {RevokedOperator} event. + * + * Requirements + * + * - `operator` cannot be calling address. + */ + function revokeOperator(address operator) external; + + /** + * @dev Returns the list of default operators. These accounts are operators + * for all token holders, even if {authorizeOperator} was never called on + * them. + * + * This list is immutable, but individual holders may revoke these via + * {revokeOperator}, in which case {isOperatorFor} will return false. + */ + function defaultOperators() external view returns (address[] memory); + + /** + * @dev Moves `amount` tokens from `sender` to `recipient`. The caller must + * be an operator of `sender`. + * + * If send or receive hooks are registered for `sender` and `recipient`, + * the corresponding functions will be called with `data` and + * `operatorData`. See {IERC777Sender} and {IERC777Recipient}. + * + * Emits a {Sent} event. + * + * Requirements + * + * - `sender` cannot be the zero address. + * - `sender` must have at least `amount` tokens. + * - the caller must be an operator for `sender`. + * - `recipient` cannot be the zero address. + * - if `recipient` is a contract, it must implement the {IERC777Recipient} + * interface. + */ + function operatorSend( + address sender, + address recipient, + uint256 amount, + bytes calldata data, + bytes calldata operatorData + ) external; + + /** + * @dev Destroys `amount` tokens from `account`, reducing the total supply. + * The caller must be an operator of `account`. + * + * If a send hook is registered for `account`, the corresponding function + * will be called with `data` and `operatorData`. See {IERC777Sender}. + * + * Emits a {Burned} event. + * + * Requirements + * + * - `account` cannot be the zero address. + * - `account` must have at least `amount` tokens. + * - the caller must be an operator for `account`. + */ + function operatorBurn(address account, uint256 amount, bytes calldata data, bytes calldata operatorData) external; + + event Sent( + address indexed operator, + address indexed from, + address indexed to, + uint256 amount, + bytes data, + bytes operatorData + ); +} diff --git a/lib/openzeppelin-contracts/contracts/token/ERC777/IERC777Recipient.sol b/lib/openzeppelin-contracts/contracts/token/ERC777/IERC777Recipient.sol new file mode 100644 index 0000000..717dd8f --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/token/ERC777/IERC777Recipient.sol @@ -0,0 +1,35 @@ +// SPDX-License-Identifier: MIT +// OpenZeppelin Contracts v4.4.1 (token/ERC777/IERC777Recipient.sol) + +pragma solidity ^0.8.0; + +/** + * @dev Interface of the ERC777TokensRecipient standard as defined in the EIP. + * + * Accounts can be notified of {IERC777} tokens being sent to them by having a + * contract implement this interface (contract holders can be their own + * implementer) and registering it on the + * https://eips.ethereum.org/EIPS/eip-1820[ERC1820 global registry]. + * + * See {IERC1820Registry} and {ERC1820Implementer}. + */ +interface IERC777Recipient { + /** + * @dev Called by an {IERC777} token contract whenever tokens are being + * moved or created into a registered account (`to`). The type of operation + * is conveyed by `from` being the zero address or not. + * + * This call occurs _after_ the token contract's state is updated, so + * {IERC777-balanceOf}, etc., can be used to query the post-operation state. + * + * This function may revert to prevent the operation from being executed. + */ + function tokensReceived( + address operator, + address from, + address to, + uint256 amount, + bytes calldata userData, + bytes calldata operatorData + ) external; +} diff --git a/lib/openzeppelin-contracts/contracts/token/ERC777/IERC777Sender.sol b/lib/openzeppelin-contracts/contracts/token/ERC777/IERC777Sender.sol new file mode 100644 index 0000000..969e3e3 --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/token/ERC777/IERC777Sender.sol @@ -0,0 +1,35 @@ +// SPDX-License-Identifier: MIT +// OpenZeppelin Contracts v4.4.1 (token/ERC777/IERC777Sender.sol) + +pragma solidity ^0.8.0; + +/** + * @dev Interface of the ERC777TokensSender standard as defined in the EIP. + * + * {IERC777} Token holders can be notified of operations performed on their + * tokens by having a contract implement this interface (contract holders can be + * their own implementer) and registering it on the + * https://eips.ethereum.org/EIPS/eip-1820[ERC1820 global registry]. + * + * See {IERC1820Registry} and {ERC1820Implementer}. + */ +interface IERC777Sender { + /** + * @dev Called by an {IERC777} token contract whenever a registered holder's + * (`from`) tokens are about to be moved or destroyed. The type of operation + * is conveyed by `to` being the zero address or not. + * + * This call occurs _before_ the token contract's state is updated, so + * {IERC777-balanceOf}, etc., can be used to query the pre-operation state. + * + * This function may revert to prevent the operation from being executed. + */ + function tokensToSend( + address operator, + address from, + address to, + uint256 amount, + bytes calldata userData, + bytes calldata operatorData + ) external; +} diff --git a/lib/openzeppelin-contracts/contracts/token/ERC777/README.adoc b/lib/openzeppelin-contracts/contracts/token/ERC777/README.adoc new file mode 100644 index 0000000..5012a31 --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/token/ERC777/README.adoc @@ -0,0 +1,30 @@ += ERC 777 + +[.readme-notice] +NOTE: This document is better viewed at https://docs.openzeppelin.com/contracts/api/token/erc777 + +This set of interfaces and contracts are all related to the https://eips.ethereum.org/EIPS/eip-777[ERC777 token standard]. + +TIP: For an overview of ERC777 tokens and a walk through on how to create a token contract read our xref:ROOT:erc777.adoc[ERC777 guide]. + +The token behavior itself is implemented in the core contracts: {IERC777}, {ERC777}. + +Additionally there are interfaces used to develop contracts that react to token movements: {IERC777Sender}, {IERC777Recipient}. + +== Core + +{{IERC777}} + +{{ERC777}} + +== Hooks + +{{IERC777Sender}} + +{{IERC777Recipient}} + +== Presets + +These contracts are preconfigured combinations of features. They can be used through inheritance or as models to copy and paste their source code. + +{{ERC777PresetFixedSupply}} diff --git a/lib/openzeppelin-contracts/contracts/token/ERC777/presets/ERC777PresetFixedSupply.sol b/lib/openzeppelin-contracts/contracts/token/ERC777/presets/ERC777PresetFixedSupply.sol new file mode 100644 index 0000000..8bd4b79 --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/token/ERC777/presets/ERC777PresetFixedSupply.sol @@ -0,0 +1,30 @@ +// SPDX-License-Identifier: MIT +// OpenZeppelin Contracts v4.4.1 (token/ERC777/presets/ERC777PresetFixedSupply.sol) +pragma solidity ^0.8.0; + +import "../ERC777.sol"; + +/** + * @dev {ERC777} token, including: + * + * - Preminted initial supply + * - No access control mechanism (for minting/pausing) and hence no governance + * + * _Available since v3.4._ + */ +contract ERC777PresetFixedSupply is ERC777 { + /** + * @dev Mints `initialSupply` amount of token and transfers them to `owner`. + * + * See {ERC777-constructor}. + */ + constructor( + string memory name, + string memory symbol, + address[] memory defaultOperators, + uint256 initialSupply, + address owner + ) ERC777(name, symbol, defaultOperators) { + _mint(owner, initialSupply, "", ""); + } +} diff --git a/lib/openzeppelin-contracts/contracts/token/common/ERC2981.sol b/lib/openzeppelin-contracts/contracts/token/common/ERC2981.sol new file mode 100644 index 0000000..f49cc8d --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/token/common/ERC2981.sol @@ -0,0 +1,107 @@ +// SPDX-License-Identifier: MIT +// OpenZeppelin Contracts (last updated v4.7.0) (token/common/ERC2981.sol) + +pragma solidity ^0.8.0; + +import "../../interfaces/IERC2981.sol"; +import "../../utils/introspection/ERC165.sol"; + +/** + * @dev Implementation of the NFT Royalty Standard, a standardized way to retrieve royalty payment information. + * + * Royalty information can be specified globally for all token ids via {_setDefaultRoyalty}, and/or individually for + * specific token ids via {_setTokenRoyalty}. The latter takes precedence over the first. + * + * Royalty is specified as a fraction of sale price. {_feeDenominator} is overridable but defaults to 10000, meaning the + * fee is specified in basis points by default. + * + * IMPORTANT: ERC-2981 only specifies a way to signal royalty information and does not enforce its payment. See + * https://eips.ethereum.org/EIPS/eip-2981#optional-royalty-payments[Rationale] in the EIP. Marketplaces are expected to + * voluntarily pay royalties together with sales, but note that this standard is not yet widely supported. + * + * _Available since v4.5._ + */ +abstract contract ERC2981 is IERC2981, ERC165 { + struct RoyaltyInfo { + address receiver; + uint96 royaltyFraction; + } + + RoyaltyInfo private _defaultRoyaltyInfo; + mapping(uint256 => RoyaltyInfo) private _tokenRoyaltyInfo; + + /** + * @dev See {IERC165-supportsInterface}. + */ + function supportsInterface(bytes4 interfaceId) public view virtual override(IERC165, ERC165) returns (bool) { + return interfaceId == type(IERC2981).interfaceId || super.supportsInterface(interfaceId); + } + + /** + * @inheritdoc IERC2981 + */ + function royaltyInfo(uint256 tokenId, uint256 salePrice) public view virtual override returns (address, uint256) { + RoyaltyInfo memory royalty = _tokenRoyaltyInfo[tokenId]; + + if (royalty.receiver == address(0)) { + royalty = _defaultRoyaltyInfo; + } + + uint256 royaltyAmount = (salePrice * royalty.royaltyFraction) / _feeDenominator(); + + return (royalty.receiver, royaltyAmount); + } + + /** + * @dev The denominator with which to interpret the fee set in {_setTokenRoyalty} and {_setDefaultRoyalty} as a + * fraction of the sale price. Defaults to 10000 so fees are expressed in basis points, but may be customized by an + * override. + */ + function _feeDenominator() internal pure virtual returns (uint96) { + return 10000; + } + + /** + * @dev Sets the royalty information that all ids in this contract will default to. + * + * Requirements: + * + * - `receiver` cannot be the zero address. + * - `feeNumerator` cannot be greater than the fee denominator. + */ + function _setDefaultRoyalty(address receiver, uint96 feeNumerator) internal virtual { + require(feeNumerator <= _feeDenominator(), "ERC2981: royalty fee will exceed salePrice"); + require(receiver != address(0), "ERC2981: invalid receiver"); + + _defaultRoyaltyInfo = RoyaltyInfo(receiver, feeNumerator); + } + + /** + * @dev Removes default royalty information. + */ + function _deleteDefaultRoyalty() internal virtual { + delete _defaultRoyaltyInfo; + } + + /** + * @dev Sets the royalty information for a specific token id, overriding the global default. + * + * Requirements: + * + * - `receiver` cannot be the zero address. + * - `feeNumerator` cannot be greater than the fee denominator. + */ + function _setTokenRoyalty(uint256 tokenId, address receiver, uint96 feeNumerator) internal virtual { + require(feeNumerator <= _feeDenominator(), "ERC2981: royalty fee will exceed salePrice"); + require(receiver != address(0), "ERC2981: Invalid parameters"); + + _tokenRoyaltyInfo[tokenId] = RoyaltyInfo(receiver, feeNumerator); + } + + /** + * @dev Resets royalty information for the token id back to the global default. + */ + function _resetTokenRoyalty(uint256 tokenId) internal virtual { + delete _tokenRoyaltyInfo[tokenId]; + } +} diff --git a/lib/openzeppelin-contracts/contracts/token/common/README.adoc b/lib/openzeppelin-contracts/contracts/token/common/README.adoc new file mode 100644 index 0000000..af61674 --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/token/common/README.adoc @@ -0,0 +1,10 @@ += Common (Tokens) + +Functionality that is common to multiple token standards. + +* {ERC2981}: NFT Royalties compatible with both ERC721 and ERC1155. +** For ERC721 consider {ERC721Royalty} which clears the royalty information from storage on burn. + +== Contracts + +{{ERC2981}} diff --git a/lib/openzeppelin-contracts/contracts/utils/Address.sol b/lib/openzeppelin-contracts/contracts/utils/Address.sol new file mode 100644 index 0000000..433a866 --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/utils/Address.sol @@ -0,0 +1,244 @@ +// SPDX-License-Identifier: MIT +// OpenZeppelin Contracts (last updated v4.8.0) (utils/Address.sol) + +pragma solidity ^0.8.1; + +/** + * @dev Collection of functions related to the address type + */ +library Address { + /** + * @dev Returns true if `account` is a contract. + * + * [IMPORTANT] + * ==== + * It is unsafe to assume that an address for which this function returns + * false is an externally-owned account (EOA) and not a contract. + * + * Among others, `isContract` will return false for the following + * types of addresses: + * + * - an externally-owned account + * - a contract in construction + * - an address where a contract will be created + * - an address where a contract lived, but was destroyed + * + * Furthermore, `isContract` will also return true if the target contract within + * the same transaction is already scheduled for destruction by `SELFDESTRUCT`, + * which only has an effect at the end of a transaction. + * ==== + * + * [IMPORTANT] + * ==== + * You shouldn't rely on `isContract` to protect against flash loan attacks! + * + * Preventing calls from contracts is highly discouraged. It breaks composability, breaks support for smart wallets + * like Gnosis Safe, and does not provide security since it can be circumvented by calling from a contract + * constructor. + * ==== + */ + function isContract(address account) internal view returns (bool) { + // This method relies on extcodesize/address.code.length, which returns 0 + // for contracts in construction, since the code is only stored at the end + // of the constructor execution. + + return account.code.length > 0; + } + + /** + * @dev Replacement for Solidity's `transfer`: sends `amount` wei to + * `recipient`, forwarding all available gas and reverting on errors. + * + * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost + * of certain opcodes, possibly making contracts go over the 2300 gas limit + * imposed by `transfer`, making them unable to receive funds via + * `transfer`. {sendValue} removes this limitation. + * + * https://consensys.net/diligence/blog/2019/09/stop-using-soliditys-transfer-now/[Learn more]. + * + * IMPORTANT: because control is transferred to `recipient`, care must be + * taken to not create reentrancy vulnerabilities. Consider using + * {ReentrancyGuard} or the + * https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern]. + */ + function sendValue(address payable recipient, uint256 amount) internal { + require(address(this).balance >= amount, "Address: insufficient balance"); + + (bool success, ) = recipient.call{value: amount}(""); + require(success, "Address: unable to send value, recipient may have reverted"); + } + + /** + * @dev Performs a Solidity function call using a low level `call`. A + * plain `call` is an unsafe replacement for a function call: use this + * function instead. + * + * If `target` reverts with a revert reason, it is bubbled up by this + * function (like regular Solidity function calls). + * + * Returns the raw returned data. To convert to the expected return value, + * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`]. + * + * Requirements: + * + * - `target` must be a contract. + * - calling `target` with `data` must not revert. + * + * _Available since v3.1._ + */ + function functionCall(address target, bytes memory data) internal returns (bytes memory) { + return functionCallWithValue(target, data, 0, "Address: low-level call failed"); + } + + /** + * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with + * `errorMessage` as a fallback revert reason when `target` reverts. + * + * _Available since v3.1._ + */ + function functionCall( + address target, + bytes memory data, + string memory errorMessage + ) internal returns (bytes memory) { + return functionCallWithValue(target, data, 0, errorMessage); + } + + /** + * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], + * but also transferring `value` wei to `target`. + * + * Requirements: + * + * - the calling contract must have an ETH balance of at least `value`. + * - the called Solidity function must be `payable`. + * + * _Available since v3.1._ + */ + function functionCallWithValue(address target, bytes memory data, uint256 value) internal returns (bytes memory) { + return functionCallWithValue(target, data, value, "Address: low-level call with value failed"); + } + + /** + * @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but + * with `errorMessage` as a fallback revert reason when `target` reverts. + * + * _Available since v3.1._ + */ + function functionCallWithValue( + address target, + bytes memory data, + uint256 value, + string memory errorMessage + ) internal returns (bytes memory) { + require(address(this).balance >= value, "Address: insufficient balance for call"); + (bool success, bytes memory returndata) = target.call{value: value}(data); + return verifyCallResultFromTarget(target, success, returndata, errorMessage); + } + + /** + * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], + * but performing a static call. + * + * _Available since v3.3._ + */ + function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) { + return functionStaticCall(target, data, "Address: low-level static call failed"); + } + + /** + * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`], + * but performing a static call. + * + * _Available since v3.3._ + */ + function functionStaticCall( + address target, + bytes memory data, + string memory errorMessage + ) internal view returns (bytes memory) { + (bool success, bytes memory returndata) = target.staticcall(data); + return verifyCallResultFromTarget(target, success, returndata, errorMessage); + } + + /** + * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], + * but performing a delegate call. + * + * _Available since v3.4._ + */ + function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) { + return functionDelegateCall(target, data, "Address: low-level delegate call failed"); + } + + /** + * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`], + * but performing a delegate call. + * + * _Available since v3.4._ + */ + function functionDelegateCall( + address target, + bytes memory data, + string memory errorMessage + ) internal returns (bytes memory) { + (bool success, bytes memory returndata) = target.delegatecall(data); + return verifyCallResultFromTarget(target, success, returndata, errorMessage); + } + + /** + * @dev Tool to verify that a low level call to smart-contract was successful, and revert (either by bubbling + * the revert reason or using the provided one) in case of unsuccessful call or if target was not a contract. + * + * _Available since v4.8._ + */ + function verifyCallResultFromTarget( + address target, + bool success, + bytes memory returndata, + string memory errorMessage + ) internal view returns (bytes memory) { + if (success) { + if (returndata.length == 0) { + // only check isContract if the call was successful and the return data is empty + // otherwise we already know that it was a contract + require(isContract(target), "Address: call to non-contract"); + } + return returndata; + } else { + _revert(returndata, errorMessage); + } + } + + /** + * @dev Tool to verify that a low level call was successful, and revert if it wasn't, either by bubbling the + * revert reason or using the provided one. + * + * _Available since v4.3._ + */ + function verifyCallResult( + bool success, + bytes memory returndata, + string memory errorMessage + ) internal pure returns (bytes memory) { + if (success) { + return returndata; + } else { + _revert(returndata, errorMessage); + } + } + + function _revert(bytes memory returndata, string memory errorMessage) private pure { + // Look for revert reason and bubble it up if present + if (returndata.length > 0) { + // The easiest way to bubble the revert reason is using memory via assembly + /// @solidity memory-safe-assembly + assembly { + let returndata_size := mload(returndata) + revert(add(32, returndata), returndata_size) + } + } else { + revert(errorMessage); + } + } +} diff --git a/lib/openzeppelin-contracts/contracts/utils/Arrays.sol b/lib/openzeppelin-contracts/contracts/utils/Arrays.sol new file mode 100644 index 0000000..2496475 --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/utils/Arrays.sol @@ -0,0 +1,105 @@ +// SPDX-License-Identifier: MIT +// OpenZeppelin Contracts (last updated v4.8.0) (utils/Arrays.sol) + +pragma solidity ^0.8.0; + +import "./StorageSlot.sol"; +import "./math/Math.sol"; + +/** + * @dev Collection of functions related to array types. + */ +library Arrays { + using StorageSlot for bytes32; + + /** + * @dev Searches a sorted `array` and returns the first index that contains + * a value greater or equal to `element`. If no such index exists (i.e. all + * values in the array are strictly less than `element`), the array length is + * returned. Time complexity O(log n). + * + * `array` is expected to be sorted in ascending order, and to contain no + * repeated elements. + */ + function findUpperBound(uint256[] storage array, uint256 element) internal view returns (uint256) { + if (array.length == 0) { + return 0; + } + + uint256 low = 0; + uint256 high = array.length; + + while (low < high) { + uint256 mid = Math.average(low, high); + + // Note that mid will always be strictly less than high (i.e. it will be a valid array index) + // because Math.average rounds down (it does integer division with truncation). + if (unsafeAccess(array, mid).value > element) { + high = mid; + } else { + low = mid + 1; + } + } + + // At this point `low` is the exclusive upper bound. We will return the inclusive upper bound. + if (low > 0 && unsafeAccess(array, low - 1).value == element) { + return low - 1; + } else { + return low; + } + } + + /** + * @dev Access an array in an "unsafe" way. Skips solidity "index-out-of-range" check. + * + * WARNING: Only use if you are certain `pos` is lower than the array length. + */ + function unsafeAccess(address[] storage arr, uint256 pos) internal pure returns (StorageSlot.AddressSlot storage) { + bytes32 slot; + // We use assembly to calculate the storage slot of the element at index `pos` of the dynamic array `arr` + // following https://docs.soliditylang.org/en/v0.8.17/internals/layout_in_storage.html#mappings-and-dynamic-arrays. + + /// @solidity memory-safe-assembly + assembly { + mstore(0, arr.slot) + slot := add(keccak256(0, 0x20), pos) + } + return slot.getAddressSlot(); + } + + /** + * @dev Access an array in an "unsafe" way. Skips solidity "index-out-of-range" check. + * + * WARNING: Only use if you are certain `pos` is lower than the array length. + */ + function unsafeAccess(bytes32[] storage arr, uint256 pos) internal pure returns (StorageSlot.Bytes32Slot storage) { + bytes32 slot; + // We use assembly to calculate the storage slot of the element at index `pos` of the dynamic array `arr` + // following https://docs.soliditylang.org/en/v0.8.17/internals/layout_in_storage.html#mappings-and-dynamic-arrays. + + /// @solidity memory-safe-assembly + assembly { + mstore(0, arr.slot) + slot := add(keccak256(0, 0x20), pos) + } + return slot.getBytes32Slot(); + } + + /** + * @dev Access an array in an "unsafe" way. Skips solidity "index-out-of-range" check. + * + * WARNING: Only use if you are certain `pos` is lower than the array length. + */ + function unsafeAccess(uint256[] storage arr, uint256 pos) internal pure returns (StorageSlot.Uint256Slot storage) { + bytes32 slot; + // We use assembly to calculate the storage slot of the element at index `pos` of the dynamic array `arr` + // following https://docs.soliditylang.org/en/v0.8.17/internals/layout_in_storage.html#mappings-and-dynamic-arrays. + + /// @solidity memory-safe-assembly + assembly { + mstore(0, arr.slot) + slot := add(keccak256(0, 0x20), pos) + } + return slot.getUint256Slot(); + } +} diff --git a/lib/openzeppelin-contracts/contracts/utils/Base64.sol b/lib/openzeppelin-contracts/contracts/utils/Base64.sol new file mode 100644 index 0000000..4e08cd5 --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/utils/Base64.sol @@ -0,0 +1,92 @@ +// SPDX-License-Identifier: MIT +// OpenZeppelin Contracts (last updated v4.7.0) (utils/Base64.sol) + +pragma solidity ^0.8.0; + +/** + * @dev Provides a set of functions to operate with Base64 strings. + * + * _Available since v4.5._ + */ +library Base64 { + /** + * @dev Base64 Encoding/Decoding Table + */ + string internal constant _TABLE = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/"; + + /** + * @dev Converts a `bytes` to its Bytes64 `string` representation. + */ + function encode(bytes memory data) internal pure returns (string memory) { + /** + * Inspired by Brecht Devos (Brechtpd) implementation - MIT licence + * https://github.com/Brechtpd/base64/blob/e78d9fd951e7b0977ddca77d92dc85183770daf4/base64.sol + */ + if (data.length == 0) return ""; + + // Loads the table into memory + string memory table = _TABLE; + + // Encoding takes 3 bytes chunks of binary data from `bytes` data parameter + // and split into 4 numbers of 6 bits. + // The final Base64 length should be `bytes` data length multiplied by 4/3 rounded up + // - `data.length + 2` -> Round up + // - `/ 3` -> Number of 3-bytes chunks + // - `4 *` -> 4 characters for each chunk + string memory result = new string(4 * ((data.length + 2) / 3)); + + /// @solidity memory-safe-assembly + assembly { + // Prepare the lookup table (skip the first "length" byte) + let tablePtr := add(table, 1) + + // Prepare result pointer, jump over length + let resultPtr := add(result, 32) + + // Run over the input, 3 bytes at a time + for { + let dataPtr := data + let endPtr := add(data, mload(data)) + } lt(dataPtr, endPtr) { + + } { + // Advance 3 bytes + dataPtr := add(dataPtr, 3) + let input := mload(dataPtr) + + // To write each character, shift the 3 bytes (18 bits) chunk + // 4 times in blocks of 6 bits for each character (18, 12, 6, 0) + // and apply logical AND with 0x3F which is the number of + // the previous character in the ASCII table prior to the Base64 Table + // The result is then added to the table to get the character to write, + // and finally write it in the result pointer but with a left shift + // of 256 (1 byte) - 8 (1 ASCII char) = 248 bits + + mstore8(resultPtr, mload(add(tablePtr, and(shr(18, input), 0x3F)))) + resultPtr := add(resultPtr, 1) // Advance + + mstore8(resultPtr, mload(add(tablePtr, and(shr(12, input), 0x3F)))) + resultPtr := add(resultPtr, 1) // Advance + + mstore8(resultPtr, mload(add(tablePtr, and(shr(6, input), 0x3F)))) + resultPtr := add(resultPtr, 1) // Advance + + mstore8(resultPtr, mload(add(tablePtr, and(input, 0x3F)))) + resultPtr := add(resultPtr, 1) // Advance + } + + // When data `bytes` is not exactly 3 bytes long + // it is padded with `=` characters at the end + switch mod(mload(data), 3) + case 1 { + mstore8(sub(resultPtr, 1), 0x3d) + mstore8(sub(resultPtr, 2), 0x3d) + } + case 2 { + mstore8(sub(resultPtr, 1), 0x3d) + } + } + + return result; + } +} diff --git a/lib/openzeppelin-contracts/contracts/utils/Checkpoints.sol b/lib/openzeppelin-contracts/contracts/utils/Checkpoints.sol new file mode 100644 index 0000000..0e0a136 --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/utils/Checkpoints.sol @@ -0,0 +1,510 @@ +// SPDX-License-Identifier: MIT +// OpenZeppelin Contracts (last updated v4.8.0) (utils/Checkpoints.sol) +// This file was procedurally generated from scripts/generate/templates/Checkpoints.js. + +pragma solidity ^0.8.0; + +import "./math/Math.sol"; +import "./math/SafeCast.sol"; + +/** + * @dev This library defines the `History` struct, for checkpointing values as they change at different points in + * time, and later looking up past values by block number. See {Votes} as an example. + * + * To create a history of checkpoints define a variable type `Checkpoints.History` in your contract, and store a new + * checkpoint for the current transaction block using the {push} function. + * + * _Available since v4.5._ + */ +library Checkpoints { + struct History { + Checkpoint[] _checkpoints; + } + + struct Checkpoint { + uint32 _blockNumber; + uint224 _value; + } + + /** + * @dev Returns the value at a given block number. If a checkpoint is not available at that block, the closest one + * before it is returned, or zero otherwise. Because the number returned corresponds to that at the end of the + * block, the requested block number must be in the past, excluding the current block. + */ + function getAtBlock(History storage self, uint256 blockNumber) internal view returns (uint256) { + require(blockNumber < block.number, "Checkpoints: block not yet mined"); + uint32 key = SafeCast.toUint32(blockNumber); + + uint256 len = self._checkpoints.length; + uint256 pos = _upperBinaryLookup(self._checkpoints, key, 0, len); + return pos == 0 ? 0 : _unsafeAccess(self._checkpoints, pos - 1)._value; + } + + /** + * @dev Returns the value at a given block number. If a checkpoint is not available at that block, the closest one + * before it is returned, or zero otherwise. Similar to {upperLookup} but optimized for the case when the searched + * checkpoint is probably "recent", defined as being among the last sqrt(N) checkpoints where N is the number of + * checkpoints. + */ + function getAtProbablyRecentBlock(History storage self, uint256 blockNumber) internal view returns (uint256) { + require(blockNumber < block.number, "Checkpoints: block not yet mined"); + uint32 key = SafeCast.toUint32(blockNumber); + + uint256 len = self._checkpoints.length; + + uint256 low = 0; + uint256 high = len; + + if (len > 5) { + uint256 mid = len - Math.sqrt(len); + if (key < _unsafeAccess(self._checkpoints, mid)._blockNumber) { + high = mid; + } else { + low = mid + 1; + } + } + + uint256 pos = _upperBinaryLookup(self._checkpoints, key, low, high); + + return pos == 0 ? 0 : _unsafeAccess(self._checkpoints, pos - 1)._value; + } + + /** + * @dev Pushes a value onto a History so that it is stored as the checkpoint for the current block. + * + * Returns previous value and new value. + */ + function push(History storage self, uint256 value) internal returns (uint256, uint256) { + return _insert(self._checkpoints, SafeCast.toUint32(block.number), SafeCast.toUint224(value)); + } + + /** + * @dev Pushes a value onto a History, by updating the latest value using binary operation `op`. The new value will + * be set to `op(latest, delta)`. + * + * Returns previous value and new value. + */ + function push( + History storage self, + function(uint256, uint256) view returns (uint256) op, + uint256 delta + ) internal returns (uint256, uint256) { + return push(self, op(latest(self), delta)); + } + + /** + * @dev Returns the value in the most recent checkpoint, or zero if there are no checkpoints. + */ + function latest(History storage self) internal view returns (uint224) { + uint256 pos = self._checkpoints.length; + return pos == 0 ? 0 : _unsafeAccess(self._checkpoints, pos - 1)._value; + } + + /** + * @dev Returns whether there is a checkpoint in the structure (i.e. it is not empty), and if so the key and value + * in the most recent checkpoint. + */ + function latestCheckpoint( + History storage self + ) internal view returns (bool exists, uint32 _blockNumber, uint224 _value) { + uint256 pos = self._checkpoints.length; + if (pos == 0) { + return (false, 0, 0); + } else { + Checkpoint memory ckpt = _unsafeAccess(self._checkpoints, pos - 1); + return (true, ckpt._blockNumber, ckpt._value); + } + } + + /** + * @dev Returns the number of checkpoint. + */ + function length(History storage self) internal view returns (uint256) { + return self._checkpoints.length; + } + + /** + * @dev Pushes a (`key`, `value`) pair into an ordered list of checkpoints, either by inserting a new checkpoint, + * or by updating the last one. + */ + function _insert(Checkpoint[] storage self, uint32 key, uint224 value) private returns (uint224, uint224) { + uint256 pos = self.length; + + if (pos > 0) { + // Copying to memory is important here. + Checkpoint memory last = _unsafeAccess(self, pos - 1); + + // Checkpoint keys must be non-decreasing. + require(last._blockNumber <= key, "Checkpoint: decreasing keys"); + + // Update or push new checkpoint + if (last._blockNumber == key) { + _unsafeAccess(self, pos - 1)._value = value; + } else { + self.push(Checkpoint({_blockNumber: key, _value: value})); + } + return (last._value, value); + } else { + self.push(Checkpoint({_blockNumber: key, _value: value})); + return (0, value); + } + } + + /** + * @dev Return the index of the oldest checkpoint whose key is greater than the search key, or `high` if there is none. + * `low` and `high` define a section where to do the search, with inclusive `low` and exclusive `high`. + * + * WARNING: `high` should not be greater than the array's length. + */ + function _upperBinaryLookup( + Checkpoint[] storage self, + uint32 key, + uint256 low, + uint256 high + ) private view returns (uint256) { + while (low < high) { + uint256 mid = Math.average(low, high); + if (_unsafeAccess(self, mid)._blockNumber > key) { + high = mid; + } else { + low = mid + 1; + } + } + return high; + } + + /** + * @dev Return the index of the oldest checkpoint whose key is greater or equal than the search key, or `high` if there is none. + * `low` and `high` define a section where to do the search, with inclusive `low` and exclusive `high`. + * + * WARNING: `high` should not be greater than the array's length. + */ + function _lowerBinaryLookup( + Checkpoint[] storage self, + uint32 key, + uint256 low, + uint256 high + ) private view returns (uint256) { + while (low < high) { + uint256 mid = Math.average(low, high); + if (_unsafeAccess(self, mid)._blockNumber < key) { + low = mid + 1; + } else { + high = mid; + } + } + return high; + } + + /** + * @dev Access an element of the array without performing bounds check. The position is assumed to be within bounds. + */ + function _unsafeAccess(Checkpoint[] storage self, uint256 pos) private pure returns (Checkpoint storage result) { + assembly { + mstore(0, self.slot) + result.slot := add(keccak256(0, 0x20), pos) + } + } + + struct Trace224 { + Checkpoint224[] _checkpoints; + } + + struct Checkpoint224 { + uint32 _key; + uint224 _value; + } + + /** + * @dev Pushes a (`key`, `value`) pair into a Trace224 so that it is stored as the checkpoint. + * + * Returns previous value and new value. + */ + function push(Trace224 storage self, uint32 key, uint224 value) internal returns (uint224, uint224) { + return _insert(self._checkpoints, key, value); + } + + /** + * @dev Returns the value in the oldest checkpoint with key greater or equal than the search key, or zero if there is none. + */ + function lowerLookup(Trace224 storage self, uint32 key) internal view returns (uint224) { + uint256 len = self._checkpoints.length; + uint256 pos = _lowerBinaryLookup(self._checkpoints, key, 0, len); + return pos == len ? 0 : _unsafeAccess(self._checkpoints, pos)._value; + } + + /** + * @dev Returns the value in the most recent checkpoint with key lower or equal than the search key. + */ + function upperLookup(Trace224 storage self, uint32 key) internal view returns (uint224) { + uint256 len = self._checkpoints.length; + uint256 pos = _upperBinaryLookup(self._checkpoints, key, 0, len); + return pos == 0 ? 0 : _unsafeAccess(self._checkpoints, pos - 1)._value; + } + + /** + * @dev Returns the value in the most recent checkpoint, or zero if there are no checkpoints. + */ + function latest(Trace224 storage self) internal view returns (uint224) { + uint256 pos = self._checkpoints.length; + return pos == 0 ? 0 : _unsafeAccess(self._checkpoints, pos - 1)._value; + } + + /** + * @dev Returns whether there is a checkpoint in the structure (i.e. it is not empty), and if so the key and value + * in the most recent checkpoint. + */ + function latestCheckpoint(Trace224 storage self) internal view returns (bool exists, uint32 _key, uint224 _value) { + uint256 pos = self._checkpoints.length; + if (pos == 0) { + return (false, 0, 0); + } else { + Checkpoint224 memory ckpt = _unsafeAccess(self._checkpoints, pos - 1); + return (true, ckpt._key, ckpt._value); + } + } + + /** + * @dev Returns the number of checkpoint. + */ + function length(Trace224 storage self) internal view returns (uint256) { + return self._checkpoints.length; + } + + /** + * @dev Pushes a (`key`, `value`) pair into an ordered list of checkpoints, either by inserting a new checkpoint, + * or by updating the last one. + */ + function _insert(Checkpoint224[] storage self, uint32 key, uint224 value) private returns (uint224, uint224) { + uint256 pos = self.length; + + if (pos > 0) { + // Copying to memory is important here. + Checkpoint224 memory last = _unsafeAccess(self, pos - 1); + + // Checkpoint keys must be non-decreasing. + require(last._key <= key, "Checkpoint: decreasing keys"); + + // Update or push new checkpoint + if (last._key == key) { + _unsafeAccess(self, pos - 1)._value = value; + } else { + self.push(Checkpoint224({_key: key, _value: value})); + } + return (last._value, value); + } else { + self.push(Checkpoint224({_key: key, _value: value})); + return (0, value); + } + } + + /** + * @dev Return the index of the oldest checkpoint whose key is greater than the search key, or `high` if there is none. + * `low` and `high` define a section where to do the search, with inclusive `low` and exclusive `high`. + * + * WARNING: `high` should not be greater than the array's length. + */ + function _upperBinaryLookup( + Checkpoint224[] storage self, + uint32 key, + uint256 low, + uint256 high + ) private view returns (uint256) { + while (low < high) { + uint256 mid = Math.average(low, high); + if (_unsafeAccess(self, mid)._key > key) { + high = mid; + } else { + low = mid + 1; + } + } + return high; + } + + /** + * @dev Return the index of the oldest checkpoint whose key is greater or equal than the search key, or `high` if there is none. + * `low` and `high` define a section where to do the search, with inclusive `low` and exclusive `high`. + * + * WARNING: `high` should not be greater than the array's length. + */ + function _lowerBinaryLookup( + Checkpoint224[] storage self, + uint32 key, + uint256 low, + uint256 high + ) private view returns (uint256) { + while (low < high) { + uint256 mid = Math.average(low, high); + if (_unsafeAccess(self, mid)._key < key) { + low = mid + 1; + } else { + high = mid; + } + } + return high; + } + + /** + * @dev Access an element of the array without performing bounds check. The position is assumed to be within bounds. + */ + function _unsafeAccess( + Checkpoint224[] storage self, + uint256 pos + ) private pure returns (Checkpoint224 storage result) { + assembly { + mstore(0, self.slot) + result.slot := add(keccak256(0, 0x20), pos) + } + } + + struct Trace160 { + Checkpoint160[] _checkpoints; + } + + struct Checkpoint160 { + uint96 _key; + uint160 _value; + } + + /** + * @dev Pushes a (`key`, `value`) pair into a Trace160 so that it is stored as the checkpoint. + * + * Returns previous value and new value. + */ + function push(Trace160 storage self, uint96 key, uint160 value) internal returns (uint160, uint160) { + return _insert(self._checkpoints, key, value); + } + + /** + * @dev Returns the value in the oldest checkpoint with key greater or equal than the search key, or zero if there is none. + */ + function lowerLookup(Trace160 storage self, uint96 key) internal view returns (uint160) { + uint256 len = self._checkpoints.length; + uint256 pos = _lowerBinaryLookup(self._checkpoints, key, 0, len); + return pos == len ? 0 : _unsafeAccess(self._checkpoints, pos)._value; + } + + /** + * @dev Returns the value in the most recent checkpoint with key lower or equal than the search key. + */ + function upperLookup(Trace160 storage self, uint96 key) internal view returns (uint160) { + uint256 len = self._checkpoints.length; + uint256 pos = _upperBinaryLookup(self._checkpoints, key, 0, len); + return pos == 0 ? 0 : _unsafeAccess(self._checkpoints, pos - 1)._value; + } + + /** + * @dev Returns the value in the most recent checkpoint, or zero if there are no checkpoints. + */ + function latest(Trace160 storage self) internal view returns (uint160) { + uint256 pos = self._checkpoints.length; + return pos == 0 ? 0 : _unsafeAccess(self._checkpoints, pos - 1)._value; + } + + /** + * @dev Returns whether there is a checkpoint in the structure (i.e. it is not empty), and if so the key and value + * in the most recent checkpoint. + */ + function latestCheckpoint(Trace160 storage self) internal view returns (bool exists, uint96 _key, uint160 _value) { + uint256 pos = self._checkpoints.length; + if (pos == 0) { + return (false, 0, 0); + } else { + Checkpoint160 memory ckpt = _unsafeAccess(self._checkpoints, pos - 1); + return (true, ckpt._key, ckpt._value); + } + } + + /** + * @dev Returns the number of checkpoint. + */ + function length(Trace160 storage self) internal view returns (uint256) { + return self._checkpoints.length; + } + + /** + * @dev Pushes a (`key`, `value`) pair into an ordered list of checkpoints, either by inserting a new checkpoint, + * or by updating the last one. + */ + function _insert(Checkpoint160[] storage self, uint96 key, uint160 value) private returns (uint160, uint160) { + uint256 pos = self.length; + + if (pos > 0) { + // Copying to memory is important here. + Checkpoint160 memory last = _unsafeAccess(self, pos - 1); + + // Checkpoint keys must be non-decreasing. + require(last._key <= key, "Checkpoint: decreasing keys"); + + // Update or push new checkpoint + if (last._key == key) { + _unsafeAccess(self, pos - 1)._value = value; + } else { + self.push(Checkpoint160({_key: key, _value: value})); + } + return (last._value, value); + } else { + self.push(Checkpoint160({_key: key, _value: value})); + return (0, value); + } + } + + /** + * @dev Return the index of the oldest checkpoint whose key is greater than the search key, or `high` if there is none. + * `low` and `high` define a section where to do the search, with inclusive `low` and exclusive `high`. + * + * WARNING: `high` should not be greater than the array's length. + */ + function _upperBinaryLookup( + Checkpoint160[] storage self, + uint96 key, + uint256 low, + uint256 high + ) private view returns (uint256) { + while (low < high) { + uint256 mid = Math.average(low, high); + if (_unsafeAccess(self, mid)._key > key) { + high = mid; + } else { + low = mid + 1; + } + } + return high; + } + + /** + * @dev Return the index of the oldest checkpoint whose key is greater or equal than the search key, or `high` if there is none. + * `low` and `high` define a section where to do the search, with inclusive `low` and exclusive `high`. + * + * WARNING: `high` should not be greater than the array's length. + */ + function _lowerBinaryLookup( + Checkpoint160[] storage self, + uint96 key, + uint256 low, + uint256 high + ) private view returns (uint256) { + while (low < high) { + uint256 mid = Math.average(low, high); + if (_unsafeAccess(self, mid)._key < key) { + low = mid + 1; + } else { + high = mid; + } + } + return high; + } + + /** + * @dev Access an element of the array without performing bounds check. The position is assumed to be within bounds. + */ + function _unsafeAccess( + Checkpoint160[] storage self, + uint256 pos + ) private pure returns (Checkpoint160 storage result) { + assembly { + mstore(0, self.slot) + result.slot := add(keccak256(0, 0x20), pos) + } + } +} diff --git a/lib/openzeppelin-contracts/contracts/utils/Context.sol b/lib/openzeppelin-contracts/contracts/utils/Context.sol new file mode 100644 index 0000000..f304065 --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/utils/Context.sol @@ -0,0 +1,24 @@ +// SPDX-License-Identifier: MIT +// OpenZeppelin Contracts v4.4.1 (utils/Context.sol) + +pragma solidity ^0.8.0; + +/** + * @dev Provides information about the current execution context, including the + * sender of the transaction and its data. While these are generally available + * via msg.sender and msg.data, they should not be accessed in such a direct + * manner, since when dealing with meta-transactions the account sending and + * paying for execution may not be the actual sender (as far as an application + * is concerned). + * + * This contract is only required for intermediate, library-like contracts. + */ +abstract contract Context { + function _msgSender() internal view virtual returns (address) { + return msg.sender; + } + + function _msgData() internal view virtual returns (bytes calldata) { + return msg.data; + } +} diff --git a/lib/openzeppelin-contracts/contracts/utils/Counters.sol b/lib/openzeppelin-contracts/contracts/utils/Counters.sol new file mode 100644 index 0000000..8a4f2a2 --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/utils/Counters.sol @@ -0,0 +1,43 @@ +// SPDX-License-Identifier: MIT +// OpenZeppelin Contracts v4.4.1 (utils/Counters.sol) + +pragma solidity ^0.8.0; + +/** + * @title Counters + * @author Matt Condon (@shrugs) + * @dev Provides counters that can only be incremented, decremented or reset. This can be used e.g. to track the number + * of elements in a mapping, issuing ERC721 ids, or counting request ids. + * + * Include with `using Counters for Counters.Counter;` + */ +library Counters { + struct Counter { + // This variable should never be directly accessed by users of the library: interactions must be restricted to + // the library's function. As of Solidity v0.5.2, this cannot be enforced, though there is a proposal to add + // this feature: see https://github.com/ethereum/solidity/issues/4637 + uint256 _value; // default: 0 + } + + function current(Counter storage counter) internal view returns (uint256) { + return counter._value; + } + + function increment(Counter storage counter) internal { + unchecked { + counter._value += 1; + } + } + + function decrement(Counter storage counter) internal { + uint256 value = counter._value; + require(value > 0, "Counter: decrement overflow"); + unchecked { + counter._value = value - 1; + } + } + + function reset(Counter storage counter) internal { + counter._value = 0; + } +} diff --git a/lib/openzeppelin-contracts/contracts/utils/Create2.sol b/lib/openzeppelin-contracts/contracts/utils/Create2.sol new file mode 100644 index 0000000..2255a4d --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/utils/Create2.sol @@ -0,0 +1,75 @@ +// SPDX-License-Identifier: MIT +// OpenZeppelin Contracts (last updated v4.8.0) (utils/Create2.sol) + +pragma solidity ^0.8.0; + +/** + * @dev Helper to make usage of the `CREATE2` EVM opcode easier and safer. + * `CREATE2` can be used to compute in advance the address where a smart + * contract will be deployed, which allows for interesting new mechanisms known + * as 'counterfactual interactions'. + * + * See the https://eips.ethereum.org/EIPS/eip-1014#motivation[EIP] for more + * information. + */ +library Create2 { + /** + * @dev Deploys a contract using `CREATE2`. The address where the contract + * will be deployed can be known in advance via {computeAddress}. + * + * The bytecode for a contract can be obtained from Solidity with + * `type(contractName).creationCode`. + * + * Requirements: + * + * - `bytecode` must not be empty. + * - `salt` must have not been used for `bytecode` already. + * - the factory must have a balance of at least `amount`. + * - if `amount` is non-zero, `bytecode` must have a `payable` constructor. + */ + function deploy(uint256 amount, bytes32 salt, bytes memory bytecode) internal returns (address addr) { + require(address(this).balance >= amount, "Create2: insufficient balance"); + require(bytecode.length != 0, "Create2: bytecode length is zero"); + /// @solidity memory-safe-assembly + assembly { + addr := create2(amount, add(bytecode, 0x20), mload(bytecode), salt) + } + require(addr != address(0), "Create2: Failed on deploy"); + } + + /** + * @dev Returns the address where a contract will be stored if deployed via {deploy}. Any change in the + * `bytecodeHash` or `salt` will result in a new destination address. + */ + function computeAddress(bytes32 salt, bytes32 bytecodeHash) internal view returns (address) { + return computeAddress(salt, bytecodeHash, address(this)); + } + + /** + * @dev Returns the address where a contract will be stored if deployed via {deploy} from a contract located at + * `deployer`. If `deployer` is this contract's address, returns the same value as {computeAddress}. + */ + function computeAddress(bytes32 salt, bytes32 bytecodeHash, address deployer) internal pure returns (address addr) { + /// @solidity memory-safe-assembly + assembly { + let ptr := mload(0x40) // Get free memory pointer + + // | | ↓ ptr ... ↓ ptr + 0x0B (start) ... ↓ ptr + 0x20 ... ↓ ptr + 0x40 ... | + // |-------------------|---------------------------------------------------------------------------| + // | bytecodeHash | CCCCCCCCCCCCC...CC | + // | salt | BBBBBBBBBBBBB...BB | + // | deployer | 000000...0000AAAAAAAAAAAAAAAAAAA...AA | + // | 0xFF | FF | + // |-------------------|---------------------------------------------------------------------------| + // | memory | 000000...00FFAAAAAAAAAAAAAAAAAAA...AABBBBBBBBBBBBB...BBCCCCCCCCCCCCC...CC | + // | keccak(start, 85) | ↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑ | + + mstore(add(ptr, 0x40), bytecodeHash) + mstore(add(ptr, 0x20), salt) + mstore(ptr, deployer) // Right-aligned with 12 preceding garbage bytes + let start := add(ptr, 0x0b) // The hashed data starts at the final garbage byte which we will set to 0xff + mstore8(start, 0xff) + addr := keccak256(start, 85) + } + } +} diff --git a/lib/openzeppelin-contracts/contracts/utils/Multicall.sol b/lib/openzeppelin-contracts/contracts/utils/Multicall.sol new file mode 100644 index 0000000..7470c55 --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/utils/Multicall.sol @@ -0,0 +1,25 @@ +// SPDX-License-Identifier: MIT +// OpenZeppelin Contracts (last updated v4.5.0) (utils/Multicall.sol) + +pragma solidity ^0.8.0; + +import "./Address.sol"; + +/** + * @dev Provides a function to batch together multiple calls in a single external call. + * + * _Available since v4.1._ + */ +abstract contract Multicall { + /** + * @dev Receives and executes a batch of function calls on this contract. + * @custom:oz-upgrades-unsafe-allow-reachable delegatecall + */ + function multicall(bytes[] calldata data) external virtual returns (bytes[] memory results) { + results = new bytes[](data.length); + for (uint256 i = 0; i < data.length; i++) { + results[i] = Address.functionDelegateCall(address(this), data[i]); + } + return results; + } +} diff --git a/lib/openzeppelin-contracts/contracts/utils/README.adoc b/lib/openzeppelin-contracts/contracts/utils/README.adoc new file mode 100644 index 0000000..7fef825 --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/utils/README.adoc @@ -0,0 +1,111 @@ += Utilities + +[.readme-notice] +NOTE: This document is better viewed at https://docs.openzeppelin.com/contracts/api/utils + +Miscellaneous contracts and libraries containing utility functions you can use to improve security, work with new data types, or safely use low-level primitives. + +The {Address}, {Arrays}, {Base64} and {Strings} libraries provide more operations related to these native data types, while {SafeCast} adds ways to safely convert between the different signed and unsigned numeric types. +{Multicall} provides a function to batch together multiple calls in a single external call. + +For new data types: + + * {Counters}: a simple way to get a counter that can only be incremented, decremented or reset. Very useful for ID generation, counting contract activity, among others. + * {EnumerableMap}: like Solidity's https://solidity.readthedocs.io/en/latest/types.html#mapping-types[`mapping`] type, but with key-value _enumeration_: this will let you know how many entries a mapping has, and iterate over them (which is not possible with `mapping`). + * {EnumerableSet}: like {EnumerableMap}, but for https://en.wikipedia.org/wiki/Set_(abstract_data_type)[sets]. Can be used to store privileged accounts, issued IDs, etc. + +[NOTE] +==== +Because Solidity does not support generic types, {EnumerableMap} and {EnumerableSet} are specialized to a limited number of key-value types. + +As of v3.0, {EnumerableMap} supports `uint256 -> address` (`UintToAddressMap`), and {EnumerableSet} supports `address` and `uint256` (`AddressSet` and `UintSet`). +==== + +Finally, {Create2} contains all necessary utilities to safely use the https://blog.openzeppelin.com/getting-the-most-out-of-create2/[`CREATE2` EVM opcode], without having to deal with low-level assembly. + +== Math + +{{Math}} + +{{SignedMath}} + +{{SafeCast}} + +{{SafeMath}} + +{{SignedSafeMath}} + +== Cryptography + +{{ECDSA}} + +{{SignatureChecker}} + +{{MerkleProof}} + +{{EIP712}} + +== Escrow + +{{ConditionalEscrow}} + +{{Escrow}} + +{{RefundEscrow}} + +== Introspection + +This set of interfaces and contracts deal with https://en.wikipedia.org/wiki/Type_introspection[type introspection] of contracts, that is, examining which functions can be called on them. This is usually referred to as a contract's _interface_. + +Ethereum contracts have no native concept of an interface, so applications must usually simply trust they are not making an incorrect call. For trusted setups this is a non-issue, but often unknown and untrusted third-party addresses need to be interacted with. There may even not be any direct calls to them! (e.g. `ERC20` tokens may be sent to a contract that lacks a way to transfer them out of it, locking them forever). In these cases, a contract _declaring_ its interface can be very helpful in preventing errors. + +There are two main ways to approach this. + +* Locally, where a contract implements `IERC165` and declares an interface, and a second one queries it directly via `ERC165Checker`. +* Globally, where a global and unique registry (`IERC1820Registry`) is used to register implementers of a certain interface (`IERC1820Implementer`). It is then the registry that is queried, which allows for more complex setups, like contracts implementing interfaces for externally-owned accounts. + +Note that, in all cases, accounts simply _declare_ their interfaces, but they are not required to actually implement them. This mechanism can therefore be used to both prevent errors and allow for complex interactions (see `ERC777`), but it must not be relied on for security. + +{{IERC165}} + +{{ERC165}} + +{{ERC165Storage}} + +{{ERC165Checker}} + +{{IERC1820Registry}} + +{{IERC1820Implementer}} + +{{ERC1820Implementer}} + +== Data Structures + +{{BitMaps}} + +{{EnumerableMap}} + +{{EnumerableSet}} + +{{DoubleEndedQueue}} + +{{Checkpoints}} + +== Libraries + +{{Create2}} + +{{Address}} + +{{Arrays}} + +{{Base64}} + +{{Counters}} + +{{Strings}} + +{{StorageSlot}} + +{{Multicall}} diff --git a/lib/openzeppelin-contracts/contracts/utils/StorageSlot.sol b/lib/openzeppelin-contracts/contracts/utils/StorageSlot.sol new file mode 100644 index 0000000..6ab8f5d --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/utils/StorageSlot.sol @@ -0,0 +1,88 @@ +// SPDX-License-Identifier: MIT +// OpenZeppelin Contracts (last updated v4.7.0) (utils/StorageSlot.sol) + +pragma solidity ^0.8.0; + +/** + * @dev Library for reading and writing primitive types to specific storage slots. + * + * Storage slots are often used to avoid storage conflict when dealing with upgradeable contracts. + * This library helps with reading and writing to such slots without the need for inline assembly. + * + * The functions in this library return Slot structs that contain a `value` member that can be used to read or write. + * + * Example usage to set ERC1967 implementation slot: + * ``` + * contract ERC1967 { + * bytes32 internal constant _IMPLEMENTATION_SLOT = 0x360894a13ba1a3210667c828492db98dca3e2076cc3735a920a3ca505d382bbc; + * + * function _getImplementation() internal view returns (address) { + * return StorageSlot.getAddressSlot(_IMPLEMENTATION_SLOT).value; + * } + * + * function _setImplementation(address newImplementation) internal { + * require(Address.isContract(newImplementation), "ERC1967: new implementation is not a contract"); + * StorageSlot.getAddressSlot(_IMPLEMENTATION_SLOT).value = newImplementation; + * } + * } + * ``` + * + * _Available since v4.1 for `address`, `bool`, `bytes32`, and `uint256`._ + */ +library StorageSlot { + struct AddressSlot { + address value; + } + + struct BooleanSlot { + bool value; + } + + struct Bytes32Slot { + bytes32 value; + } + + struct Uint256Slot { + uint256 value; + } + + /** + * @dev Returns an `AddressSlot` with member `value` located at `slot`. + */ + function getAddressSlot(bytes32 slot) internal pure returns (AddressSlot storage r) { + /// @solidity memory-safe-assembly + assembly { + r.slot := slot + } + } + + /** + * @dev Returns an `BooleanSlot` with member `value` located at `slot`. + */ + function getBooleanSlot(bytes32 slot) internal pure returns (BooleanSlot storage r) { + /// @solidity memory-safe-assembly + assembly { + r.slot := slot + } + } + + /** + * @dev Returns an `Bytes32Slot` with member `value` located at `slot`. + */ + function getBytes32Slot(bytes32 slot) internal pure returns (Bytes32Slot storage r) { + /// @solidity memory-safe-assembly + assembly { + r.slot := slot + } + } + + /** + * @dev Returns an `Uint256Slot` with member `value` located at `slot`. + */ + function getUint256Slot(bytes32 slot) internal pure returns (Uint256Slot storage r) { + /// @solidity memory-safe-assembly + assembly { + r.slot := slot + } + } +} diff --git a/lib/openzeppelin-contracts/contracts/utils/Strings.sol b/lib/openzeppelin-contracts/contracts/utils/Strings.sol new file mode 100644 index 0000000..3a037f4 --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/utils/Strings.sol @@ -0,0 +1,85 @@ +// SPDX-License-Identifier: MIT +// OpenZeppelin Contracts (last updated v4.8.0) (utils/Strings.sol) + +pragma solidity ^0.8.0; + +import "./math/Math.sol"; +import "./math/SignedMath.sol"; + +/** + * @dev String operations. + */ +library Strings { + bytes16 private constant _SYMBOLS = "0123456789abcdef"; + uint8 private constant _ADDRESS_LENGTH = 20; + + /** + * @dev Converts a `uint256` to its ASCII `string` decimal representation. + */ + function toString(uint256 value) internal pure returns (string memory) { + unchecked { + uint256 length = Math.log10(value) + 1; + string memory buffer = new string(length); + uint256 ptr; + /// @solidity memory-safe-assembly + assembly { + ptr := add(buffer, add(32, length)) + } + while (true) { + ptr--; + /// @solidity memory-safe-assembly + assembly { + mstore8(ptr, byte(mod(value, 10), _SYMBOLS)) + } + value /= 10; + if (value == 0) break; + } + return buffer; + } + } + + /** + * @dev Converts a `int256` to its ASCII `string` decimal representation. + */ + function toString(int256 value) internal pure returns (string memory) { + return string(abi.encodePacked(value < 0 ? "-" : "", toString(SignedMath.abs(value)))); + } + + /** + * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation. + */ + function toHexString(uint256 value) internal pure returns (string memory) { + unchecked { + return toHexString(value, Math.log256(value) + 1); + } + } + + /** + * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation with fixed length. + */ + function toHexString(uint256 value, uint256 length) internal pure returns (string memory) { + bytes memory buffer = new bytes(2 * length + 2); + buffer[0] = "0"; + buffer[1] = "x"; + for (uint256 i = 2 * length + 1; i > 1; --i) { + buffer[i] = _SYMBOLS[value & 0xf]; + value >>= 4; + } + require(value == 0, "Strings: hex length insufficient"); + return string(buffer); + } + + /** + * @dev Converts an `address` with fixed length of 20 bytes to its not checksummed ASCII `string` hexadecimal representation. + */ + function toHexString(address addr) internal pure returns (string memory) { + return toHexString(uint256(uint160(addr)), _ADDRESS_LENGTH); + } + + /** + * @dev Returns true if the two strings are equal. + */ + function equal(string memory a, string memory b) internal pure returns (bool) { + return keccak256(bytes(a)) == keccak256(bytes(b)); + } +} diff --git a/lib/openzeppelin-contracts/contracts/utils/Timers.sol b/lib/openzeppelin-contracts/contracts/utils/Timers.sol new file mode 100644 index 0000000..4bc86f2 --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/utils/Timers.sol @@ -0,0 +1,73 @@ +// SPDX-License-Identifier: MIT +// OpenZeppelin Contracts v4.4.1 (utils/Timers.sol) + +pragma solidity ^0.8.0; + +/** + * @dev Tooling for timepoints, timers and delays + */ +library Timers { + struct Timestamp { + uint64 _deadline; + } + + function getDeadline(Timestamp memory timer) internal pure returns (uint64) { + return timer._deadline; + } + + function setDeadline(Timestamp storage timer, uint64 timestamp) internal { + timer._deadline = timestamp; + } + + function reset(Timestamp storage timer) internal { + timer._deadline = 0; + } + + function isUnset(Timestamp memory timer) internal pure returns (bool) { + return timer._deadline == 0; + } + + function isStarted(Timestamp memory timer) internal pure returns (bool) { + return timer._deadline > 0; + } + + function isPending(Timestamp memory timer) internal view returns (bool) { + return timer._deadline > block.timestamp; + } + + function isExpired(Timestamp memory timer) internal view returns (bool) { + return isStarted(timer) && timer._deadline <= block.timestamp; + } + + struct BlockNumber { + uint64 _deadline; + } + + function getDeadline(BlockNumber memory timer) internal pure returns (uint64) { + return timer._deadline; + } + + function setDeadline(BlockNumber storage timer, uint64 timestamp) internal { + timer._deadline = timestamp; + } + + function reset(BlockNumber storage timer) internal { + timer._deadline = 0; + } + + function isUnset(BlockNumber memory timer) internal pure returns (bool) { + return timer._deadline == 0; + } + + function isStarted(BlockNumber memory timer) internal pure returns (bool) { + return timer._deadline > 0; + } + + function isPending(BlockNumber memory timer) internal view returns (bool) { + return timer._deadline > block.number; + } + + function isExpired(BlockNumber memory timer) internal view returns (bool) { + return isStarted(timer) && timer._deadline <= block.number; + } +} diff --git a/lib/openzeppelin-contracts/contracts/utils/cryptography/ECDSA.sol b/lib/openzeppelin-contracts/contracts/utils/cryptography/ECDSA.sol new file mode 100644 index 0000000..3f99652 --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/utils/cryptography/ECDSA.sol @@ -0,0 +1,195 @@ +// SPDX-License-Identifier: MIT +// OpenZeppelin Contracts (last updated v4.8.0) (utils/cryptography/ECDSA.sol) + +pragma solidity ^0.8.0; + +import "../Strings.sol"; + +/** + * @dev Elliptic Curve Digital Signature Algorithm (ECDSA) operations. + * + * These functions can be used to verify that a message was signed by the holder + * of the private keys of a given address. + */ +library ECDSA { + enum RecoverError { + NoError, + InvalidSignature, + InvalidSignatureLength, + InvalidSignatureS, + InvalidSignatureV // Deprecated in v4.8 + } + + function _throwError(RecoverError error) private pure { + if (error == RecoverError.NoError) { + return; // no error: do nothing + } else if (error == RecoverError.InvalidSignature) { + revert("ECDSA: invalid signature"); + } else if (error == RecoverError.InvalidSignatureLength) { + revert("ECDSA: invalid signature length"); + } else if (error == RecoverError.InvalidSignatureS) { + revert("ECDSA: invalid signature 's' value"); + } + } + + /** + * @dev Returns the address that signed a hashed message (`hash`) with + * `signature` or error string. This address can then be used for verification purposes. + * + * The `ecrecover` EVM opcode allows for malleable (non-unique) signatures: + * this function rejects them by requiring the `s` value to be in the lower + * half order, and the `v` value to be either 27 or 28. + * + * IMPORTANT: `hash` _must_ be the result of a hash operation for the + * verification to be secure: it is possible to craft signatures that + * recover to arbitrary addresses for non-hashed data. A safe way to ensure + * this is by receiving a hash of the original message (which may otherwise + * be too long), and then calling {toEthSignedMessageHash} on it. + * + * Documentation for signature generation: + * - with https://web3js.readthedocs.io/en/v1.3.4/web3-eth-accounts.html#sign[Web3.js] + * - with https://docs.ethers.io/v5/api/signer/#Signer-signMessage[ethers] + * + * _Available since v4.3._ + */ + function tryRecover(bytes32 hash, bytes memory signature) internal pure returns (address, RecoverError) { + if (signature.length == 65) { + bytes32 r; + bytes32 s; + uint8 v; + // ecrecover takes the signature parameters, and the only way to get them + // currently is to use assembly. + /// @solidity memory-safe-assembly + assembly { + r := mload(add(signature, 0x20)) + s := mload(add(signature, 0x40)) + v := byte(0, mload(add(signature, 0x60))) + } + return tryRecover(hash, v, r, s); + } else { + return (address(0), RecoverError.InvalidSignatureLength); + } + } + + /** + * @dev Returns the address that signed a hashed message (`hash`) with + * `signature`. This address can then be used for verification purposes. + * + * The `ecrecover` EVM opcode allows for malleable (non-unique) signatures: + * this function rejects them by requiring the `s` value to be in the lower + * half order, and the `v` value to be either 27 or 28. + * + * IMPORTANT: `hash` _must_ be the result of a hash operation for the + * verification to be secure: it is possible to craft signatures that + * recover to arbitrary addresses for non-hashed data. A safe way to ensure + * this is by receiving a hash of the original message (which may otherwise + * be too long), and then calling {toEthSignedMessageHash} on it. + */ + function recover(bytes32 hash, bytes memory signature) internal pure returns (address) { + (address recovered, RecoverError error) = tryRecover(hash, signature); + _throwError(error); + return recovered; + } + + /** + * @dev Overload of {ECDSA-tryRecover} that receives the `r` and `vs` short-signature fields separately. + * + * See https://eips.ethereum.org/EIPS/eip-2098[EIP-2098 short signatures] + * + * _Available since v4.3._ + */ + function tryRecover(bytes32 hash, bytes32 r, bytes32 vs) internal pure returns (address, RecoverError) { + bytes32 s = vs & bytes32(0x7fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff); + uint8 v = uint8((uint256(vs) >> 255) + 27); + return tryRecover(hash, v, r, s); + } + + /** + * @dev Overload of {ECDSA-recover} that receives the `r and `vs` short-signature fields separately. + * + * _Available since v4.2._ + */ + function recover(bytes32 hash, bytes32 r, bytes32 vs) internal pure returns (address) { + (address recovered, RecoverError error) = tryRecover(hash, r, vs); + _throwError(error); + return recovered; + } + + /** + * @dev Overload of {ECDSA-tryRecover} that receives the `v`, + * `r` and `s` signature fields separately. + * + * _Available since v4.3._ + */ + function tryRecover(bytes32 hash, uint8 v, bytes32 r, bytes32 s) internal pure returns (address, RecoverError) { + // EIP-2 still allows signature malleability for ecrecover(). Remove this possibility and make the signature + // unique. Appendix F in the Ethereum Yellow paper (https://ethereum.github.io/yellowpaper/paper.pdf), defines + // the valid range for s in (301): 0 < s < secp256k1n ÷ 2 + 1, and for v in (302): v ∈ {27, 28}. Most + // signatures from current libraries generate a unique signature with an s-value in the lower half order. + // + // If your library generates malleable signatures, such as s-values in the upper range, calculate a new s-value + // with 0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFEBAAEDCE6AF48A03BBFD25E8CD0364141 - s1 and flip v from 27 to 28 or + // vice versa. If your library also generates signatures with 0/1 for v instead 27/28, add 27 to v to accept + // these malleable signatures as well. + if (uint256(s) > 0x7FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF5D576E7357A4501DDFE92F46681B20A0) { + return (address(0), RecoverError.InvalidSignatureS); + } + + // If the signature is valid (and not malleable), return the signer address + address signer = ecrecover(hash, v, r, s); + if (signer == address(0)) { + return (address(0), RecoverError.InvalidSignature); + } + + return (signer, RecoverError.NoError); + } + + /** + * @dev Overload of {ECDSA-recover} that receives the `v`, + * `r` and `s` signature fields separately. + */ + function recover(bytes32 hash, uint8 v, bytes32 r, bytes32 s) internal pure returns (address) { + (address recovered, RecoverError error) = tryRecover(hash, v, r, s); + _throwError(error); + return recovered; + } + + /** + * @dev Returns an Ethereum Signed Message, created from a `hash`. This + * produces hash corresponding to the one signed with the + * https://eth.wiki/json-rpc/API#eth_sign[`eth_sign`] + * JSON-RPC method as part of EIP-191. + * + * See {recover}. + */ + function toEthSignedMessageHash(bytes32 hash) internal pure returns (bytes32) { + // 32 is the length in bytes of hash, + // enforced by the type signature above + return keccak256(abi.encodePacked("\x19Ethereum Signed Message:\n32", hash)); + } + + /** + * @dev Returns an Ethereum Signed Message, created from `s`. This + * produces hash corresponding to the one signed with the + * https://eth.wiki/json-rpc/API#eth_sign[`eth_sign`] + * JSON-RPC method as part of EIP-191. + * + * See {recover}. + */ + function toEthSignedMessageHash(bytes memory s) internal pure returns (bytes32) { + return keccak256(abi.encodePacked("\x19Ethereum Signed Message:\n", Strings.toString(s.length), s)); + } + + /** + * @dev Returns an Ethereum Signed Typed Data, created from a + * `domainSeparator` and a `structHash`. This produces hash corresponding + * to the one signed with the + * https://eips.ethereum.org/EIPS/eip-712[`eth_signTypedData`] + * JSON-RPC method as part of EIP-712. + * + * See {recover}. + */ + function toTypedDataHash(bytes32 domainSeparator, bytes32 structHash) internal pure returns (bytes32) { + return keccak256(abi.encodePacked("\x19\x01", domainSeparator, structHash)); + } +} diff --git a/lib/openzeppelin-contracts/contracts/utils/cryptography/EIP712.sol b/lib/openzeppelin-contracts/contracts/utils/cryptography/EIP712.sol new file mode 100644 index 0000000..eb211a7 --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/utils/cryptography/EIP712.sol @@ -0,0 +1,104 @@ +// SPDX-License-Identifier: MIT +// OpenZeppelin Contracts (last updated v4.8.0) (utils/cryptography/EIP712.sol) + +pragma solidity ^0.8.0; + +import "./ECDSA.sol"; + +/** + * @dev https://eips.ethereum.org/EIPS/eip-712[EIP 712] is a standard for hashing and signing of typed structured data. + * + * The encoding specified in the EIP is very generic, and such a generic implementation in Solidity is not feasible, + * thus this contract does not implement the encoding itself. Protocols need to implement the type-specific encoding + * they need in their contracts using a combination of `abi.encode` and `keccak256`. + * + * This contract implements the EIP 712 domain separator ({_domainSeparatorV4}) that is used as part of the encoding + * scheme, and the final step of the encoding to obtain the message digest that is then signed via ECDSA + * ({_hashTypedDataV4}). + * + * The implementation of the domain separator was designed to be as efficient as possible while still properly updating + * the chain id to protect against replay attacks on an eventual fork of the chain. + * + * NOTE: This contract implements the version of the encoding known as "v4", as implemented by the JSON RPC method + * https://docs.metamask.io/guide/signing-data.html[`eth_signTypedDataV4` in MetaMask]. + * + * _Available since v3.4._ + */ +abstract contract EIP712 { + /* solhint-disable var-name-mixedcase */ + // Cache the domain separator as an immutable value, but also store the chain id that it corresponds to, in order to + // invalidate the cached domain separator if the chain id changes. + bytes32 private immutable _CACHED_DOMAIN_SEPARATOR; + uint256 private immutable _CACHED_CHAIN_ID; + address private immutable _CACHED_THIS; + + bytes32 private immutable _HASHED_NAME; + bytes32 private immutable _HASHED_VERSION; + bytes32 private immutable _TYPE_HASH; + + /* solhint-enable var-name-mixedcase */ + + /** + * @dev Initializes the domain separator and parameter caches. + * + * The meaning of `name` and `version` is specified in + * https://eips.ethereum.org/EIPS/eip-712#definition-of-domainseparator[EIP 712]: + * + * - `name`: the user readable name of the signing domain, i.e. the name of the DApp or the protocol. + * - `version`: the current major version of the signing domain. + * + * NOTE: These parameters cannot be changed except through a xref:learn::upgrading-smart-contracts.adoc[smart + * contract upgrade]. + */ + constructor(string memory name, string memory version) { + bytes32 hashedName = keccak256(bytes(name)); + bytes32 hashedVersion = keccak256(bytes(version)); + bytes32 typeHash = keccak256( + "EIP712Domain(string name,string version,uint256 chainId,address verifyingContract)" + ); + _HASHED_NAME = hashedName; + _HASHED_VERSION = hashedVersion; + _CACHED_CHAIN_ID = block.chainid; + _CACHED_DOMAIN_SEPARATOR = _buildDomainSeparator(typeHash, hashedName, hashedVersion); + _CACHED_THIS = address(this); + _TYPE_HASH = typeHash; + } + + /** + * @dev Returns the domain separator for the current chain. + */ + function _domainSeparatorV4() internal view returns (bytes32) { + if (address(this) == _CACHED_THIS && block.chainid == _CACHED_CHAIN_ID) { + return _CACHED_DOMAIN_SEPARATOR; + } else { + return _buildDomainSeparator(_TYPE_HASH, _HASHED_NAME, _HASHED_VERSION); + } + } + + function _buildDomainSeparator( + bytes32 typeHash, + bytes32 nameHash, + bytes32 versionHash + ) private view returns (bytes32) { + return keccak256(abi.encode(typeHash, nameHash, versionHash, block.chainid, address(this))); + } + + /** + * @dev Given an already https://eips.ethereum.org/EIPS/eip-712#definition-of-hashstruct[hashed struct], this + * function returns the hash of the fully encoded EIP712 message for this domain. + * + * This hash can be used together with {ECDSA-recover} to obtain the signer of a message. For example: + * + * ```solidity + * bytes32 digest = _hashTypedDataV4(keccak256(abi.encode( + * keccak256("Mail(address to,string contents)"), + * mailTo, + * keccak256(bytes(mailContents)) + * ))); + * address signer = ECDSA.recover(digest, signature); + * ``` + */ + function _hashTypedDataV4(bytes32 structHash) internal view virtual returns (bytes32) { + return ECDSA.toTypedDataHash(_domainSeparatorV4(), structHash); + } +} diff --git a/lib/openzeppelin-contracts/contracts/utils/cryptography/MerkleProof.sol b/lib/openzeppelin-contracts/contracts/utils/cryptography/MerkleProof.sol new file mode 100644 index 0000000..3862fdb --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/utils/cryptography/MerkleProof.sol @@ -0,0 +1,223 @@ +// SPDX-License-Identifier: MIT +// OpenZeppelin Contracts (last updated v4.8.0) (utils/cryptography/MerkleProof.sol) + +pragma solidity ^0.8.0; + +/** + * @dev These functions deal with verification of Merkle Tree proofs. + * + * The tree and the proofs can be generated using our + * https://github.com/OpenZeppelin/merkle-tree[JavaScript library]. + * You will find a quickstart guide in the readme. + * + * WARNING: You should avoid using leaf values that are 64 bytes long prior to + * hashing, or use a hash function other than keccak256 for hashing leaves. + * This is because the concatenation of a sorted pair of internal nodes in + * the merkle tree could be reinterpreted as a leaf value. + * OpenZeppelin's JavaScript library generates merkle trees that are safe + * against this attack out of the box. + */ +library MerkleProof { + /** + * @dev Returns true if a `leaf` can be proved to be a part of a Merkle tree + * defined by `root`. For this, a `proof` must be provided, containing + * sibling hashes on the branch from the leaf to the root of the tree. Each + * pair of leaves and each pair of pre-images are assumed to be sorted. + */ + function verify(bytes32[] memory proof, bytes32 root, bytes32 leaf) internal pure returns (bool) { + return processProof(proof, leaf) == root; + } + + /** + * @dev Calldata version of {verify} + * + * _Available since v4.7._ + */ + function verifyCalldata(bytes32[] calldata proof, bytes32 root, bytes32 leaf) internal pure returns (bool) { + return processProofCalldata(proof, leaf) == root; + } + + /** + * @dev Returns the rebuilt hash obtained by traversing a Merkle tree up + * from `leaf` using `proof`. A `proof` is valid if and only if the rebuilt + * hash matches the root of the tree. When processing the proof, the pairs + * of leafs & pre-images are assumed to be sorted. + * + * _Available since v4.4._ + */ + function processProof(bytes32[] memory proof, bytes32 leaf) internal pure returns (bytes32) { + bytes32 computedHash = leaf; + for (uint256 i = 0; i < proof.length; i++) { + computedHash = _hashPair(computedHash, proof[i]); + } + return computedHash; + } + + /** + * @dev Calldata version of {processProof} + * + * _Available since v4.7._ + */ + function processProofCalldata(bytes32[] calldata proof, bytes32 leaf) internal pure returns (bytes32) { + bytes32 computedHash = leaf; + for (uint256 i = 0; i < proof.length; i++) { + computedHash = _hashPair(computedHash, proof[i]); + } + return computedHash; + } + + /** + * @dev Returns true if the `leaves` can be simultaneously proven to be a part of a merkle tree defined by + * `root`, according to `proof` and `proofFlags` as described in {processMultiProof}. + * + * CAUTION: Not all merkle trees admit multiproofs. See {processMultiProof} for details. + * + * _Available since v4.7._ + */ + function multiProofVerify( + bytes32[] memory proof, + bool[] memory proofFlags, + bytes32 root, + bytes32[] memory leaves + ) internal pure returns (bool) { + return processMultiProof(proof, proofFlags, leaves) == root; + } + + /** + * @dev Calldata version of {multiProofVerify} + * + * CAUTION: Not all merkle trees admit multiproofs. See {processMultiProof} for details. + * + * _Available since v4.7._ + */ + function multiProofVerifyCalldata( + bytes32[] calldata proof, + bool[] calldata proofFlags, + bytes32 root, + bytes32[] memory leaves + ) internal pure returns (bool) { + return processMultiProofCalldata(proof, proofFlags, leaves) == root; + } + + /** + * @dev Returns the root of a tree reconstructed from `leaves` and sibling nodes in `proof`. The reconstruction + * proceeds by incrementally reconstructing all inner nodes by combining a leaf/inner node with either another + * leaf/inner node or a proof sibling node, depending on whether each `proofFlags` item is true or false + * respectively. + * + * CAUTION: Not all merkle trees admit multiproofs. To use multiproofs, it is sufficient to ensure that: 1) the tree + * is complete (but not necessarily perfect), 2) the leaves to be proven are in the opposite order they are in the + * tree (i.e., as seen from right to left starting at the deepest layer and continuing at the next layer). + * + * _Available since v4.7._ + */ + function processMultiProof( + bytes32[] memory proof, + bool[] memory proofFlags, + bytes32[] memory leaves + ) internal pure returns (bytes32 merkleRoot) { + // This function rebuilds the root hash by traversing the tree up from the leaves. The root is rebuilt by + // consuming and producing values on a queue. The queue starts with the `leaves` array, then goes onto the + // `hashes` array. At the end of the process, the last hash in the `hashes` array should contain the root of + // the merkle tree. + uint256 leavesLen = leaves.length; + uint256 totalHashes = proofFlags.length; + + // Check proof validity. + require(leavesLen + proof.length - 1 == totalHashes, "MerkleProof: invalid multiproof"); + + // The xxxPos values are "pointers" to the next value to consume in each array. All accesses are done using + // `xxx[xxxPos++]`, which return the current value and increment the pointer, thus mimicking a queue's "pop". + bytes32[] memory hashes = new bytes32[](totalHashes); + uint256 leafPos = 0; + uint256 hashPos = 0; + uint256 proofPos = 0; + // At each step, we compute the next hash using two values: + // - a value from the "main queue". If not all leaves have been consumed, we get the next leaf, otherwise we + // get the next hash. + // - depending on the flag, either another value from the "main queue" (merging branches) or an element from the + // `proof` array. + for (uint256 i = 0; i < totalHashes; i++) { + bytes32 a = leafPos < leavesLen ? leaves[leafPos++] : hashes[hashPos++]; + bytes32 b = proofFlags[i] + ? (leafPos < leavesLen ? leaves[leafPos++] : hashes[hashPos++]) + : proof[proofPos++]; + hashes[i] = _hashPair(a, b); + } + + if (totalHashes > 0) { + unchecked { + return hashes[totalHashes - 1]; + } + } else if (leavesLen > 0) { + return leaves[0]; + } else { + return proof[0]; + } + } + + /** + * @dev Calldata version of {processMultiProof}. + * + * CAUTION: Not all merkle trees admit multiproofs. See {processMultiProof} for details. + * + * _Available since v4.7._ + */ + function processMultiProofCalldata( + bytes32[] calldata proof, + bool[] calldata proofFlags, + bytes32[] memory leaves + ) internal pure returns (bytes32 merkleRoot) { + // This function rebuilds the root hash by traversing the tree up from the leaves. The root is rebuilt by + // consuming and producing values on a queue. The queue starts with the `leaves` array, then goes onto the + // `hashes` array. At the end of the process, the last hash in the `hashes` array should contain the root of + // the merkle tree. + uint256 leavesLen = leaves.length; + uint256 totalHashes = proofFlags.length; + + // Check proof validity. + require(leavesLen + proof.length - 1 == totalHashes, "MerkleProof: invalid multiproof"); + + // The xxxPos values are "pointers" to the next value to consume in each array. All accesses are done using + // `xxx[xxxPos++]`, which return the current value and increment the pointer, thus mimicking a queue's "pop". + bytes32[] memory hashes = new bytes32[](totalHashes); + uint256 leafPos = 0; + uint256 hashPos = 0; + uint256 proofPos = 0; + // At each step, we compute the next hash using two values: + // - a value from the "main queue". If not all leaves have been consumed, we get the next leaf, otherwise we + // get the next hash. + // - depending on the flag, either another value from the "main queue" (merging branches) or an element from the + // `proof` array. + for (uint256 i = 0; i < totalHashes; i++) { + bytes32 a = leafPos < leavesLen ? leaves[leafPos++] : hashes[hashPos++]; + bytes32 b = proofFlags[i] + ? (leafPos < leavesLen ? leaves[leafPos++] : hashes[hashPos++]) + : proof[proofPos++]; + hashes[i] = _hashPair(a, b); + } + + if (totalHashes > 0) { + unchecked { + return hashes[totalHashes - 1]; + } + } else if (leavesLen > 0) { + return leaves[0]; + } else { + return proof[0]; + } + } + + function _hashPair(bytes32 a, bytes32 b) private pure returns (bytes32) { + return a < b ? _efficientHash(a, b) : _efficientHash(b, a); + } + + function _efficientHash(bytes32 a, bytes32 b) private pure returns (bytes32 value) { + /// @solidity memory-safe-assembly + assembly { + mstore(0x00, a) + mstore(0x20, b) + value := keccak256(0x00, 0x40) + } + } +} diff --git a/lib/openzeppelin-contracts/contracts/utils/cryptography/SignatureChecker.sol b/lib/openzeppelin-contracts/contracts/utils/cryptography/SignatureChecker.sol new file mode 100644 index 0000000..e06778d --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/utils/cryptography/SignatureChecker.sol @@ -0,0 +1,37 @@ +// SPDX-License-Identifier: MIT +// OpenZeppelin Contracts (last updated v4.8.0) (utils/cryptography/SignatureChecker.sol) + +pragma solidity ^0.8.0; + +import "./ECDSA.sol"; +import "../../interfaces/IERC1271.sol"; + +/** + * @dev Signature verification helper that can be used instead of `ECDSA.recover` to seamlessly support both ECDSA + * signatures from externally owned accounts (EOAs) as well as ERC1271 signatures from smart contract wallets like + * Argent and Gnosis Safe. + * + * _Available since v4.1._ + */ +library SignatureChecker { + /** + * @dev Checks if a signature is valid for a given signer and data hash. If the signer is a smart contract, the + * signature is validated against that smart contract using ERC1271, otherwise it's validated using `ECDSA.recover`. + * + * NOTE: Unlike ECDSA signatures, contract signatures are revocable, and the outcome of this function can thus + * change through time. It could return true at block N and false at block N+1 (or the opposite). + */ + function isValidSignatureNow(address signer, bytes32 hash, bytes memory signature) internal view returns (bool) { + (address recovered, ECDSA.RecoverError error) = ECDSA.tryRecover(hash, signature); + if (error == ECDSA.RecoverError.NoError && recovered == signer) { + return true; + } + + (bool success, bytes memory result) = signer.staticcall( + abi.encodeWithSelector(IERC1271.isValidSignature.selector, hash, signature) + ); + return (success && + result.length == 32 && + abi.decode(result, (bytes32)) == bytes32(IERC1271.isValidSignature.selector)); + } +} diff --git a/lib/openzeppelin-contracts/contracts/utils/cryptography/draft-EIP712.sol b/lib/openzeppelin-contracts/contracts/utils/cryptography/draft-EIP712.sol new file mode 100644 index 0000000..fdae3ba --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/utils/cryptography/draft-EIP712.sol @@ -0,0 +1,8 @@ +// SPDX-License-Identifier: MIT +// OpenZeppelin Contracts (last updated v4.8.0) (utils/cryptography/draft-EIP712.sol) + +pragma solidity ^0.8.0; + +// EIP-712 is Final as of 2022-08-11. This file is deprecated. + +import "./EIP712.sol"; diff --git a/lib/openzeppelin-contracts/contracts/utils/escrow/ConditionalEscrow.sol b/lib/openzeppelin-contracts/contracts/utils/escrow/ConditionalEscrow.sol new file mode 100644 index 0000000..87f5381 --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/utils/escrow/ConditionalEscrow.sol @@ -0,0 +1,25 @@ +// SPDX-License-Identifier: MIT +// OpenZeppelin Contracts v4.4.1 (utils/escrow/ConditionalEscrow.sol) + +pragma solidity ^0.8.0; + +import "./Escrow.sol"; + +/** + * @title ConditionalEscrow + * @dev Base abstract escrow to only allow withdrawal if a condition is met. + * @dev Intended usage: See {Escrow}. Same usage guidelines apply here. + */ +abstract contract ConditionalEscrow is Escrow { + /** + * @dev Returns whether an address is allowed to withdraw their funds. To be + * implemented by derived contracts. + * @param payee The destination address of the funds. + */ + function withdrawalAllowed(address payee) public view virtual returns (bool); + + function withdraw(address payable payee) public virtual override { + require(withdrawalAllowed(payee), "ConditionalEscrow: payee is not allowed to withdraw"); + super.withdraw(payee); + } +} diff --git a/lib/openzeppelin-contracts/contracts/utils/escrow/Escrow.sol b/lib/openzeppelin-contracts/contracts/utils/escrow/Escrow.sol new file mode 100644 index 0000000..48dd51a --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/utils/escrow/Escrow.sol @@ -0,0 +1,67 @@ +// SPDX-License-Identifier: MIT +// OpenZeppelin Contracts (last updated v4.7.0) (utils/escrow/Escrow.sol) + +pragma solidity ^0.8.0; + +import "../../access/Ownable.sol"; +import "../Address.sol"; + +/** + * @title Escrow + * @dev Base escrow contract, holds funds designated for a payee until they + * withdraw them. + * + * Intended usage: This contract (and derived escrow contracts) should be a + * standalone contract, that only interacts with the contract that instantiated + * it. That way, it is guaranteed that all Ether will be handled according to + * the `Escrow` rules, and there is no need to check for payable functions or + * transfers in the inheritance tree. The contract that uses the escrow as its + * payment method should be its owner, and provide public methods redirecting + * to the escrow's deposit and withdraw. + */ +contract Escrow is Ownable { + using Address for address payable; + + event Deposited(address indexed payee, uint256 weiAmount); + event Withdrawn(address indexed payee, uint256 weiAmount); + + mapping(address => uint256) private _deposits; + + function depositsOf(address payee) public view returns (uint256) { + return _deposits[payee]; + } + + /** + * @dev Stores the sent amount as credit to be withdrawn. + * @param payee The destination address of the funds. + * + * Emits a {Deposited} event. + */ + function deposit(address payee) public payable virtual onlyOwner { + uint256 amount = msg.value; + _deposits[payee] += amount; + emit Deposited(payee, amount); + } + + /** + * @dev Withdraw accumulated balance for a payee, forwarding all gas to the + * recipient. + * + * WARNING: Forwarding all gas opens the door to reentrancy vulnerabilities. + * Make sure you trust the recipient, or are either following the + * checks-effects-interactions pattern or using {ReentrancyGuard}. + * + * @param payee The address whose funds will be withdrawn and transferred to. + * + * Emits a {Withdrawn} event. + */ + function withdraw(address payable payee) public virtual onlyOwner { + uint256 payment = _deposits[payee]; + + _deposits[payee] = 0; + + payee.sendValue(payment); + + emit Withdrawn(payee, payment); + } +} diff --git a/lib/openzeppelin-contracts/contracts/utils/escrow/RefundEscrow.sol b/lib/openzeppelin-contracts/contracts/utils/escrow/RefundEscrow.sol new file mode 100644 index 0000000..0e9621f --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/utils/escrow/RefundEscrow.sol @@ -0,0 +1,100 @@ +// SPDX-License-Identifier: MIT +// OpenZeppelin Contracts v4.4.1 (utils/escrow/RefundEscrow.sol) + +pragma solidity ^0.8.0; + +import "./ConditionalEscrow.sol"; + +/** + * @title RefundEscrow + * @dev Escrow that holds funds for a beneficiary, deposited from multiple + * parties. + * @dev Intended usage: See {Escrow}. Same usage guidelines apply here. + * @dev The owner account (that is, the contract that instantiates this + * contract) may deposit, close the deposit period, and allow for either + * withdrawal by the beneficiary, or refunds to the depositors. All interactions + * with `RefundEscrow` will be made through the owner contract. + */ +contract RefundEscrow is ConditionalEscrow { + using Address for address payable; + + enum State { + Active, + Refunding, + Closed + } + + event RefundsClosed(); + event RefundsEnabled(); + + State private _state; + address payable private immutable _beneficiary; + + /** + * @dev Constructor. + * @param beneficiary_ The beneficiary of the deposits. + */ + constructor(address payable beneficiary_) { + require(beneficiary_ != address(0), "RefundEscrow: beneficiary is the zero address"); + _beneficiary = beneficiary_; + _state = State.Active; + } + + /** + * @return The current state of the escrow. + */ + function state() public view virtual returns (State) { + return _state; + } + + /** + * @return The beneficiary of the escrow. + */ + function beneficiary() public view virtual returns (address payable) { + return _beneficiary; + } + + /** + * @dev Stores funds that may later be refunded. + * @param refundee The address funds will be sent to if a refund occurs. + */ + function deposit(address refundee) public payable virtual override { + require(state() == State.Active, "RefundEscrow: can only deposit while active"); + super.deposit(refundee); + } + + /** + * @dev Allows for the beneficiary to withdraw their funds, rejecting + * further deposits. + */ + function close() public virtual onlyOwner { + require(state() == State.Active, "RefundEscrow: can only close while active"); + _state = State.Closed; + emit RefundsClosed(); + } + + /** + * @dev Allows for refunds to take place, rejecting further deposits. + */ + function enableRefunds() public virtual onlyOwner { + require(state() == State.Active, "RefundEscrow: can only enable refunds while active"); + _state = State.Refunding; + emit RefundsEnabled(); + } + + /** + * @dev Withdraws the beneficiary's funds. + */ + function beneficiaryWithdraw() public virtual { + require(state() == State.Closed, "RefundEscrow: beneficiary can only withdraw while closed"); + beneficiary().sendValue(address(this).balance); + } + + /** + * @dev Returns whether refundees can withdraw their deposits (be refunded). The overridden function receives a + * 'payee' argument, but we ignore it here since the condition is global, not per-payee. + */ + function withdrawalAllowed(address) public view override returns (bool) { + return state() == State.Refunding; + } +} diff --git a/lib/openzeppelin-contracts/contracts/utils/introspection/ERC165.sol b/lib/openzeppelin-contracts/contracts/utils/introspection/ERC165.sol new file mode 100644 index 0000000..3bf5613 --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/utils/introspection/ERC165.sol @@ -0,0 +1,29 @@ +// SPDX-License-Identifier: MIT +// OpenZeppelin Contracts v4.4.1 (utils/introspection/ERC165.sol) + +pragma solidity ^0.8.0; + +import "./IERC165.sol"; + +/** + * @dev Implementation of the {IERC165} interface. + * + * Contracts that want to implement ERC165 should inherit from this contract and override {supportsInterface} to check + * for the additional interface id that will be supported. For example: + * + * ```solidity + * function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) { + * return interfaceId == type(MyInterface).interfaceId || super.supportsInterface(interfaceId); + * } + * ``` + * + * Alternatively, {ERC165Storage} provides an easier to use but more expensive implementation. + */ +abstract contract ERC165 is IERC165 { + /** + * @dev See {IERC165-supportsInterface}. + */ + function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) { + return interfaceId == type(IERC165).interfaceId; + } +} diff --git a/lib/openzeppelin-contracts/contracts/utils/introspection/ERC165Checker.sol b/lib/openzeppelin-contracts/contracts/utils/introspection/ERC165Checker.sol new file mode 100644 index 0000000..40ffd68 --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/utils/introspection/ERC165Checker.sol @@ -0,0 +1,122 @@ +// SPDX-License-Identifier: MIT +// OpenZeppelin Contracts (last updated v4.8.0) (utils/introspection/ERC165Checker.sol) + +pragma solidity ^0.8.0; + +import "./IERC165.sol"; + +/** + * @dev Library used to query support of an interface declared via {IERC165}. + * + * Note that these functions return the actual result of the query: they do not + * `revert` if an interface is not supported. It is up to the caller to decide + * what to do in these cases. + */ +library ERC165Checker { + // As per the EIP-165 spec, no interface should ever match 0xffffffff + bytes4 private constant _INTERFACE_ID_INVALID = 0xffffffff; + + /** + * @dev Returns true if `account` supports the {IERC165} interface. + */ + function supportsERC165(address account) internal view returns (bool) { + // Any contract that implements ERC165 must explicitly indicate support of + // InterfaceId_ERC165 and explicitly indicate non-support of InterfaceId_Invalid + return + supportsERC165InterfaceUnchecked(account, type(IERC165).interfaceId) && + !supportsERC165InterfaceUnchecked(account, _INTERFACE_ID_INVALID); + } + + /** + * @dev Returns true if `account` supports the interface defined by + * `interfaceId`. Support for {IERC165} itself is queried automatically. + * + * See {IERC165-supportsInterface}. + */ + function supportsInterface(address account, bytes4 interfaceId) internal view returns (bool) { + // query support of both ERC165 as per the spec and support of _interfaceId + return supportsERC165(account) && supportsERC165InterfaceUnchecked(account, interfaceId); + } + + /** + * @dev Returns a boolean array where each value corresponds to the + * interfaces passed in and whether they're supported or not. This allows + * you to batch check interfaces for a contract where your expectation + * is that some interfaces may not be supported. + * + * See {IERC165-supportsInterface}. + * + * _Available since v3.4._ + */ + function getSupportedInterfaces( + address account, + bytes4[] memory interfaceIds + ) internal view returns (bool[] memory) { + // an array of booleans corresponding to interfaceIds and whether they're supported or not + bool[] memory interfaceIdsSupported = new bool[](interfaceIds.length); + + // query support of ERC165 itself + if (supportsERC165(account)) { + // query support of each interface in interfaceIds + for (uint256 i = 0; i < interfaceIds.length; i++) { + interfaceIdsSupported[i] = supportsERC165InterfaceUnchecked(account, interfaceIds[i]); + } + } + + return interfaceIdsSupported; + } + + /** + * @dev Returns true if `account` supports all the interfaces defined in + * `interfaceIds`. Support for {IERC165} itself is queried automatically. + * + * Batch-querying can lead to gas savings by skipping repeated checks for + * {IERC165} support. + * + * See {IERC165-supportsInterface}. + */ + function supportsAllInterfaces(address account, bytes4[] memory interfaceIds) internal view returns (bool) { + // query support of ERC165 itself + if (!supportsERC165(account)) { + return false; + } + + // query support of each interface in interfaceIds + for (uint256 i = 0; i < interfaceIds.length; i++) { + if (!supportsERC165InterfaceUnchecked(account, interfaceIds[i])) { + return false; + } + } + + // all interfaces supported + return true; + } + + /** + * @notice Query if a contract implements an interface, does not check ERC165 support + * @param account The address of the contract to query for support of an interface + * @param interfaceId The interface identifier, as specified in ERC-165 + * @return true if the contract at account indicates support of the interface with + * identifier interfaceId, false otherwise + * @dev Assumes that account contains a contract that supports ERC165, otherwise + * the behavior of this method is undefined. This precondition can be checked + * with {supportsERC165}. + * Interface identification is specified in ERC-165. + */ + function supportsERC165InterfaceUnchecked(address account, bytes4 interfaceId) internal view returns (bool) { + // prepare call + bytes memory encodedParams = abi.encodeWithSelector(IERC165.supportsInterface.selector, interfaceId); + + // perform static call + bool success; + uint256 returnSize; + uint256 returnValue; + assembly { + success := staticcall(30000, account, add(encodedParams, 0x20), mload(encodedParams), 0x00, 0x20) + returnSize := returndatasize() + returnValue := mload(0x00) + } + + return success && returnSize >= 0x20 && returnValue > 0; + } +} diff --git a/lib/openzeppelin-contracts/contracts/utils/introspection/ERC165Storage.sol b/lib/openzeppelin-contracts/contracts/utils/introspection/ERC165Storage.sol new file mode 100644 index 0000000..c99d9f3 --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/utils/introspection/ERC165Storage.sol @@ -0,0 +1,42 @@ +// SPDX-License-Identifier: MIT +// OpenZeppelin Contracts v4.4.1 (utils/introspection/ERC165Storage.sol) + +pragma solidity ^0.8.0; + +import "./ERC165.sol"; + +/** + * @dev Storage based implementation of the {IERC165} interface. + * + * Contracts may inherit from this and call {_registerInterface} to declare + * their support of an interface. + */ +abstract contract ERC165Storage is ERC165 { + /** + * @dev Mapping of interface ids to whether or not it's supported. + */ + mapping(bytes4 => bool) private _supportedInterfaces; + + /** + * @dev See {IERC165-supportsInterface}. + */ + function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) { + return super.supportsInterface(interfaceId) || _supportedInterfaces[interfaceId]; + } + + /** + * @dev Registers the contract as an implementer of the interface defined by + * `interfaceId`. Support of the actual ERC165 interface is automatic and + * registering its interface id is not required. + * + * See {IERC165-supportsInterface}. + * + * Requirements: + * + * - `interfaceId` cannot be the ERC165 invalid interface (`0xffffffff`). + */ + function _registerInterface(bytes4 interfaceId) internal virtual { + require(interfaceId != 0xffffffff, "ERC165: invalid interface id"); + _supportedInterfaces[interfaceId] = true; + } +} diff --git a/lib/openzeppelin-contracts/contracts/utils/introspection/ERC1820Implementer.sol b/lib/openzeppelin-contracts/contracts/utils/introspection/ERC1820Implementer.sol new file mode 100644 index 0000000..ac5a884 --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/utils/introspection/ERC1820Implementer.sol @@ -0,0 +1,41 @@ +// SPDX-License-Identifier: MIT +// OpenZeppelin Contracts v4.4.1 (utils/introspection/ERC1820Implementer.sol) + +pragma solidity ^0.8.0; + +import "./IERC1820Implementer.sol"; + +/** + * @dev Implementation of the {IERC1820Implementer} interface. + * + * Contracts may inherit from this and call {_registerInterfaceForAddress} to + * declare their willingness to be implementers. + * {IERC1820Registry-setInterfaceImplementer} should then be called for the + * registration to be complete. + */ +contract ERC1820Implementer is IERC1820Implementer { + bytes32 private constant _ERC1820_ACCEPT_MAGIC = keccak256("ERC1820_ACCEPT_MAGIC"); + + mapping(bytes32 => mapping(address => bool)) private _supportedInterfaces; + + /** + * @dev See {IERC1820Implementer-canImplementInterfaceForAddress}. + */ + function canImplementInterfaceForAddress( + bytes32 interfaceHash, + address account + ) public view virtual override returns (bytes32) { + return _supportedInterfaces[interfaceHash][account] ? _ERC1820_ACCEPT_MAGIC : bytes32(0x00); + } + + /** + * @dev Declares the contract as willing to be an implementer of + * `interfaceHash` for `account`. + * + * See {IERC1820Registry-setInterfaceImplementer} and + * {IERC1820Registry-interfaceHash}. + */ + function _registerInterfaceForAddress(bytes32 interfaceHash, address account) internal virtual { + _supportedInterfaces[interfaceHash][account] = true; + } +} diff --git a/lib/openzeppelin-contracts/contracts/utils/introspection/IERC165.sol b/lib/openzeppelin-contracts/contracts/utils/introspection/IERC165.sol new file mode 100644 index 0000000..e8cdbdb --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/utils/introspection/IERC165.sol @@ -0,0 +1,25 @@ +// SPDX-License-Identifier: MIT +// OpenZeppelin Contracts v4.4.1 (utils/introspection/IERC165.sol) + +pragma solidity ^0.8.0; + +/** + * @dev Interface of the ERC165 standard, as defined in the + * https://eips.ethereum.org/EIPS/eip-165[EIP]. + * + * Implementers can declare support of contract interfaces, which can then be + * queried by others ({ERC165Checker}). + * + * For an implementation, see {ERC165}. + */ +interface IERC165 { + /** + * @dev Returns true if this contract implements the interface defined by + * `interfaceId`. See the corresponding + * https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified[EIP section] + * to learn more about how these ids are created. + * + * This function call must use less than 30 000 gas. + */ + function supportsInterface(bytes4 interfaceId) external view returns (bool); +} diff --git a/lib/openzeppelin-contracts/contracts/utils/introspection/IERC1820Implementer.sol b/lib/openzeppelin-contracts/contracts/utils/introspection/IERC1820Implementer.sol new file mode 100644 index 0000000..c4d0b30 --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/utils/introspection/IERC1820Implementer.sol @@ -0,0 +1,20 @@ +// SPDX-License-Identifier: MIT +// OpenZeppelin Contracts v4.4.1 (utils/introspection/IERC1820Implementer.sol) + +pragma solidity ^0.8.0; + +/** + * @dev Interface for an ERC1820 implementer, as defined in the + * https://eips.ethereum.org/EIPS/eip-1820#interface-implementation-erc1820implementerinterface[EIP]. + * Used by contracts that will be registered as implementers in the + * {IERC1820Registry}. + */ +interface IERC1820Implementer { + /** + * @dev Returns a special value (`ERC1820_ACCEPT_MAGIC`) if this contract + * implements `interfaceHash` for `account`. + * + * See {IERC1820Registry-setInterfaceImplementer}. + */ + function canImplementInterfaceForAddress(bytes32 interfaceHash, address account) external view returns (bytes32); +} diff --git a/lib/openzeppelin-contracts/contracts/utils/introspection/IERC1820Registry.sol b/lib/openzeppelin-contracts/contracts/utils/introspection/IERC1820Registry.sol new file mode 100644 index 0000000..a146bc2 --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/utils/introspection/IERC1820Registry.sol @@ -0,0 +1,112 @@ +// SPDX-License-Identifier: MIT +// OpenZeppelin Contracts (last updated v4.8.0) (utils/introspection/IERC1820Registry.sol) + +pragma solidity ^0.8.0; + +/** + * @dev Interface of the global ERC1820 Registry, as defined in the + * https://eips.ethereum.org/EIPS/eip-1820[EIP]. Accounts may register + * implementers for interfaces in this registry, as well as query support. + * + * Implementers may be shared by multiple accounts, and can also implement more + * than a single interface for each account. Contracts can implement interfaces + * for themselves, but externally-owned accounts (EOA) must delegate this to a + * contract. + * + * {IERC165} interfaces can also be queried via the registry. + * + * For an in-depth explanation and source code analysis, see the EIP text. + */ +interface IERC1820Registry { + event InterfaceImplementerSet(address indexed account, bytes32 indexed interfaceHash, address indexed implementer); + + event ManagerChanged(address indexed account, address indexed newManager); + + /** + * @dev Sets `newManager` as the manager for `account`. A manager of an + * account is able to set interface implementers for it. + * + * By default, each account is its own manager. Passing a value of `0x0` in + * `newManager` will reset the manager to this initial state. + * + * Emits a {ManagerChanged} event. + * + * Requirements: + * + * - the caller must be the current manager for `account`. + */ + function setManager(address account, address newManager) external; + + /** + * @dev Returns the manager for `account`. + * + * See {setManager}. + */ + function getManager(address account) external view returns (address); + + /** + * @dev Sets the `implementer` contract as ``account``'s implementer for + * `interfaceHash`. + * + * `account` being the zero address is an alias for the caller's address. + * The zero address can also be used in `implementer` to remove an old one. + * + * See {interfaceHash} to learn how these are created. + * + * Emits an {InterfaceImplementerSet} event. + * + * Requirements: + * + * - the caller must be the current manager for `account`. + * - `interfaceHash` must not be an {IERC165} interface id (i.e. it must not + * end in 28 zeroes). + * - `implementer` must implement {IERC1820Implementer} and return true when + * queried for support, unless `implementer` is the caller. See + * {IERC1820Implementer-canImplementInterfaceForAddress}. + */ + function setInterfaceImplementer(address account, bytes32 _interfaceHash, address implementer) external; + + /** + * @dev Returns the implementer of `interfaceHash` for `account`. If no such + * implementer is registered, returns the zero address. + * + * If `interfaceHash` is an {IERC165} interface id (i.e. it ends with 28 + * zeroes), `account` will be queried for support of it. + * + * `account` being the zero address is an alias for the caller's address. + */ + function getInterfaceImplementer(address account, bytes32 _interfaceHash) external view returns (address); + + /** + * @dev Returns the interface hash for an `interfaceName`, as defined in the + * corresponding + * https://eips.ethereum.org/EIPS/eip-1820#interface-name[section of the EIP]. + */ + function interfaceHash(string calldata interfaceName) external pure returns (bytes32); + + /** + * @notice Updates the cache with whether the contract implements an ERC165 interface or not. + * @param account Address of the contract for which to update the cache. + * @param interfaceId ERC165 interface for which to update the cache. + */ + function updateERC165Cache(address account, bytes4 interfaceId) external; + + /** + * @notice Checks whether a contract implements an ERC165 interface or not. + * If the result is not cached a direct lookup on the contract address is performed. + * If the result is not cached or the cached value is out-of-date, the cache MUST be updated manually by calling + * {updateERC165Cache} with the contract address. + * @param account Address of the contract to check. + * @param interfaceId ERC165 interface to check. + * @return True if `account` implements `interfaceId`, false otherwise. + */ + function implementsERC165Interface(address account, bytes4 interfaceId) external view returns (bool); + + /** + * @notice Checks whether a contract implements an ERC165 interface or not without using or updating the cache. + * @param account Address of the contract to check. + * @param interfaceId ERC165 interface to check. + * @return True if `account` implements `interfaceId`, false otherwise. + */ + function implementsERC165InterfaceNoCache(address account, bytes4 interfaceId) external view returns (bool); +} diff --git a/lib/openzeppelin-contracts/contracts/utils/math/Math.sol b/lib/openzeppelin-contracts/contracts/utils/math/Math.sol new file mode 100644 index 0000000..8400d06 --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/utils/math/Math.sol @@ -0,0 +1,336 @@ +// SPDX-License-Identifier: MIT +// OpenZeppelin Contracts (last updated v4.8.0) (utils/math/Math.sol) + +pragma solidity ^0.8.0; + +/** + * @dev Standard math utilities missing in the Solidity language. + */ +library Math { + enum Rounding { + Down, // Toward negative infinity + Up, // Toward infinity + Zero // Toward zero + } + + /** + * @dev Returns the largest of two numbers. + */ + function max(uint256 a, uint256 b) internal pure returns (uint256) { + return a > b ? a : b; + } + + /** + * @dev Returns the smallest of two numbers. + */ + function min(uint256 a, uint256 b) internal pure returns (uint256) { + return a < b ? a : b; + } + + /** + * @dev Returns the average of two numbers. The result is rounded towards + * zero. + */ + function average(uint256 a, uint256 b) internal pure returns (uint256) { + // (a + b) / 2 can overflow. + return (a & b) + (a ^ b) / 2; + } + + /** + * @dev Returns the ceiling of the division of two numbers. + * + * This differs from standard division with `/` in that it rounds up instead + * of rounding down. + */ + function ceilDiv(uint256 a, uint256 b) internal pure returns (uint256) { + // (a + b - 1) / b can overflow on addition, so we distribute. + return a == 0 ? 0 : (a - 1) / b + 1; + } + + /** + * @notice Calculates floor(x * y / denominator) with full precision. Throws if result overflows a uint256 or denominator == 0 + * @dev Original credit to Remco Bloemen under MIT license (https://xn--2-umb.com/21/muldiv) + * with further edits by Uniswap Labs also under MIT license. + */ + function mulDiv(uint256 x, uint256 y, uint256 denominator) internal pure returns (uint256 result) { + unchecked { + // 512-bit multiply [prod1 prod0] = x * y. Compute the product mod 2^256 and mod 2^256 - 1, then use + // use the Chinese Remainder Theorem to reconstruct the 512 bit result. The result is stored in two 256 + // variables such that product = prod1 * 2^256 + prod0. + uint256 prod0; // Least significant 256 bits of the product + uint256 prod1; // Most significant 256 bits of the product + assembly { + let mm := mulmod(x, y, not(0)) + prod0 := mul(x, y) + prod1 := sub(sub(mm, prod0), lt(mm, prod0)) + } + + // Handle non-overflow cases, 256 by 256 division. + if (prod1 == 0) { + return prod0 / denominator; + } + + // Make sure the result is less than 2^256. Also prevents denominator == 0. + require(denominator > prod1, "Math: mulDiv overflow"); + + /////////////////////////////////////////////// + // 512 by 256 division. + /////////////////////////////////////////////// + + // Make division exact by subtracting the remainder from [prod1 prod0]. + uint256 remainder; + assembly { + // Compute remainder using mulmod. + remainder := mulmod(x, y, denominator) + + // Subtract 256 bit number from 512 bit number. + prod1 := sub(prod1, gt(remainder, prod0)) + prod0 := sub(prod0, remainder) + } + + // Factor powers of two out of denominator and compute largest power of two divisor of denominator. Always >= 1. + // See https://cs.stackexchange.com/q/138556/92363. + + // Does not overflow because the denominator cannot be zero at this stage in the function. + uint256 twos = denominator & (~denominator + 1); + assembly { + // Divide denominator by twos. + denominator := div(denominator, twos) + + // Divide [prod1 prod0] by twos. + prod0 := div(prod0, twos) + + // Flip twos such that it is 2^256 / twos. If twos is zero, then it becomes one. + twos := add(div(sub(0, twos), twos), 1) + } + + // Shift in bits from prod1 into prod0. + prod0 |= prod1 * twos; + + // Invert denominator mod 2^256. Now that denominator is an odd number, it has an inverse modulo 2^256 such + // that denominator * inv = 1 mod 2^256. Compute the inverse by starting with a seed that is correct for + // four bits. That is, denominator * inv = 1 mod 2^4. + uint256 inverse = (3 * denominator) ^ 2; + + // Use the Newton-Raphson iteration to improve the precision. Thanks to Hensel's lifting lemma, this also works + // in modular arithmetic, doubling the correct bits in each step. + inverse *= 2 - denominator * inverse; // inverse mod 2^8 + inverse *= 2 - denominator * inverse; // inverse mod 2^16 + inverse *= 2 - denominator * inverse; // inverse mod 2^32 + inverse *= 2 - denominator * inverse; // inverse mod 2^64 + inverse *= 2 - denominator * inverse; // inverse mod 2^128 + inverse *= 2 - denominator * inverse; // inverse mod 2^256 + + // Because the division is now exact we can divide by multiplying with the modular inverse of denominator. + // This will give us the correct result modulo 2^256. Since the preconditions guarantee that the outcome is + // less than 2^256, this is the final result. We don't need to compute the high bits of the result and prod1 + // is no longer required. + result = prod0 * inverse; + return result; + } + } + + /** + * @notice Calculates x * y / denominator with full precision, following the selected rounding direction. + */ + function mulDiv(uint256 x, uint256 y, uint256 denominator, Rounding rounding) internal pure returns (uint256) { + uint256 result = mulDiv(x, y, denominator); + if (rounding == Rounding.Up && mulmod(x, y, denominator) > 0) { + result += 1; + } + return result; + } + + /** + * @dev Returns the square root of a number. If the number is not a perfect square, the value is rounded down. + * + * Inspired by Henry S. Warren, Jr.'s "Hacker's Delight" (Chapter 11). + */ + function sqrt(uint256 a) internal pure returns (uint256) { + if (a == 0) { + return 0; + } + + // For our first guess, we get the biggest power of 2 which is smaller than the square root of the target. + // + // We know that the "msb" (most significant bit) of our target number `a` is a power of 2 such that we have + // `msb(a) <= a < 2*msb(a)`. This value can be written `msb(a)=2**k` with `k=log2(a)`. + // + // This can be rewritten `2**log2(a) <= a < 2**(log2(a) + 1)` + // → `sqrt(2**k) <= sqrt(a) < sqrt(2**(k+1))` + // → `2**(k/2) <= sqrt(a) < 2**((k+1)/2) <= 2**(k/2 + 1)` + // + // Consequently, `2**(log2(a) / 2)` is a good first approximation of `sqrt(a)` with at least 1 correct bit. + uint256 result = 1 << (log2(a) >> 1); + + // At this point `result` is an estimation with one bit of precision. We know the true value is a uint128, + // since it is the square root of a uint256. Newton's method converges quadratically (precision doubles at + // every iteration). We thus need at most 7 iteration to turn our partial result with one bit of precision + // into the expected uint128 result. + unchecked { + result = (result + a / result) >> 1; + result = (result + a / result) >> 1; + result = (result + a / result) >> 1; + result = (result + a / result) >> 1; + result = (result + a / result) >> 1; + result = (result + a / result) >> 1; + result = (result + a / result) >> 1; + return min(result, a / result); + } + } + + /** + * @notice Calculates sqrt(a), following the selected rounding direction. + */ + function sqrt(uint256 a, Rounding rounding) internal pure returns (uint256) { + unchecked { + uint256 result = sqrt(a); + return result + (rounding == Rounding.Up && result * result < a ? 1 : 0); + } + } + + /** + * @dev Return the log in base 2, rounded down, of a positive value. + * Returns 0 if given 0. + */ + function log2(uint256 value) internal pure returns (uint256) { + uint256 result = 0; + unchecked { + if (value >> 128 > 0) { + value >>= 128; + result += 128; + } + if (value >> 64 > 0) { + value >>= 64; + result += 64; + } + if (value >> 32 > 0) { + value >>= 32; + result += 32; + } + if (value >> 16 > 0) { + value >>= 16; + result += 16; + } + if (value >> 8 > 0) { + value >>= 8; + result += 8; + } + if (value >> 4 > 0) { + value >>= 4; + result += 4; + } + if (value >> 2 > 0) { + value >>= 2; + result += 2; + } + if (value >> 1 > 0) { + result += 1; + } + } + return result; + } + + /** + * @dev Return the log in base 2, following the selected rounding direction, of a positive value. + * Returns 0 if given 0. + */ + function log2(uint256 value, Rounding rounding) internal pure returns (uint256) { + unchecked { + uint256 result = log2(value); + return result + (rounding == Rounding.Up && 1 << result < value ? 1 : 0); + } + } + + /** + * @dev Return the log in base 10, rounded down, of a positive value. + * Returns 0 if given 0. + */ + function log10(uint256 value) internal pure returns (uint256) { + uint256 result = 0; + unchecked { + if (value >= 10 ** 64) { + value /= 10 ** 64; + result += 64; + } + if (value >= 10 ** 32) { + value /= 10 ** 32; + result += 32; + } + if (value >= 10 ** 16) { + value /= 10 ** 16; + result += 16; + } + if (value >= 10 ** 8) { + value /= 10 ** 8; + result += 8; + } + if (value >= 10 ** 4) { + value /= 10 ** 4; + result += 4; + } + if (value >= 10 ** 2) { + value /= 10 ** 2; + result += 2; + } + if (value >= 10 ** 1) { + result += 1; + } + } + return result; + } + + /** + * @dev Return the log in base 10, following the selected rounding direction, of a positive value. + * Returns 0 if given 0. + */ + function log10(uint256 value, Rounding rounding) internal pure returns (uint256) { + unchecked { + uint256 result = log10(value); + return result + (rounding == Rounding.Up && 10 ** result < value ? 1 : 0); + } + } + + /** + * @dev Return the log in base 256, rounded down, of a positive value. + * Returns 0 if given 0. + * + * Adding one to the result gives the number of pairs of hex symbols needed to represent `value` as a hex string. + */ + function log256(uint256 value) internal pure returns (uint256) { + uint256 result = 0; + unchecked { + if (value >> 128 > 0) { + value >>= 128; + result += 16; + } + if (value >> 64 > 0) { + value >>= 64; + result += 8; + } + if (value >> 32 > 0) { + value >>= 32; + result += 4; + } + if (value >> 16 > 0) { + value >>= 16; + result += 2; + } + if (value >> 8 > 0) { + result += 1; + } + } + return result; + } + + /** + * @dev Return the log in base 256, following the selected rounding direction, of a positive value. + * Returns 0 if given 0. + */ + function log256(uint256 value, Rounding rounding) internal pure returns (uint256) { + unchecked { + uint256 result = log256(value); + return result + (rounding == Rounding.Up && 1 << (result << 3) < value ? 1 : 0); + } + } +} diff --git a/lib/openzeppelin-contracts/contracts/utils/math/SafeCast.sol b/lib/openzeppelin-contracts/contracts/utils/math/SafeCast.sol new file mode 100644 index 0000000..435a5f9 --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/utils/math/SafeCast.sol @@ -0,0 +1,1136 @@ +// SPDX-License-Identifier: MIT +// OpenZeppelin Contracts (last updated v4.8.0) (utils/math/SafeCast.sol) +// This file was procedurally generated from scripts/generate/templates/SafeCast.js. + +pragma solidity ^0.8.0; + +/** + * @dev Wrappers over Solidity's uintXX/intXX casting operators with added overflow + * checks. + * + * Downcasting from uint256/int256 in Solidity does not revert on overflow. This can + * easily result in undesired exploitation or bugs, since developers usually + * assume that overflows raise errors. `SafeCast` restores this intuition by + * reverting the transaction when such an operation overflows. + * + * Using this library instead of the unchecked operations eliminates an entire + * class of bugs, so it's recommended to use it always. + * + * Can be combined with {SafeMath} and {SignedSafeMath} to extend it to smaller types, by performing + * all math on `uint256` and `int256` and then downcasting. + */ +library SafeCast { + /** + * @dev Returns the downcasted uint248 from uint256, reverting on + * overflow (when the input is greater than largest uint248). + * + * Counterpart to Solidity's `uint248` operator. + * + * Requirements: + * + * - input must fit into 248 bits + * + * _Available since v4.7._ + */ + function toUint248(uint256 value) internal pure returns (uint248) { + require(value <= type(uint248).max, "SafeCast: value doesn't fit in 248 bits"); + return uint248(value); + } + + /** + * @dev Returns the downcasted uint240 from uint256, reverting on + * overflow (when the input is greater than largest uint240). + * + * Counterpart to Solidity's `uint240` operator. + * + * Requirements: + * + * - input must fit into 240 bits + * + * _Available since v4.7._ + */ + function toUint240(uint256 value) internal pure returns (uint240) { + require(value <= type(uint240).max, "SafeCast: value doesn't fit in 240 bits"); + return uint240(value); + } + + /** + * @dev Returns the downcasted uint232 from uint256, reverting on + * overflow (when the input is greater than largest uint232). + * + * Counterpart to Solidity's `uint232` operator. + * + * Requirements: + * + * - input must fit into 232 bits + * + * _Available since v4.7._ + */ + function toUint232(uint256 value) internal pure returns (uint232) { + require(value <= type(uint232).max, "SafeCast: value doesn't fit in 232 bits"); + return uint232(value); + } + + /** + * @dev Returns the downcasted uint224 from uint256, reverting on + * overflow (when the input is greater than largest uint224). + * + * Counterpart to Solidity's `uint224` operator. + * + * Requirements: + * + * - input must fit into 224 bits + * + * _Available since v4.2._ + */ + function toUint224(uint256 value) internal pure returns (uint224) { + require(value <= type(uint224).max, "SafeCast: value doesn't fit in 224 bits"); + return uint224(value); + } + + /** + * @dev Returns the downcasted uint216 from uint256, reverting on + * overflow (when the input is greater than largest uint216). + * + * Counterpart to Solidity's `uint216` operator. + * + * Requirements: + * + * - input must fit into 216 bits + * + * _Available since v4.7._ + */ + function toUint216(uint256 value) internal pure returns (uint216) { + require(value <= type(uint216).max, "SafeCast: value doesn't fit in 216 bits"); + return uint216(value); + } + + /** + * @dev Returns the downcasted uint208 from uint256, reverting on + * overflow (when the input is greater than largest uint208). + * + * Counterpart to Solidity's `uint208` operator. + * + * Requirements: + * + * - input must fit into 208 bits + * + * _Available since v4.7._ + */ + function toUint208(uint256 value) internal pure returns (uint208) { + require(value <= type(uint208).max, "SafeCast: value doesn't fit in 208 bits"); + return uint208(value); + } + + /** + * @dev Returns the downcasted uint200 from uint256, reverting on + * overflow (when the input is greater than largest uint200). + * + * Counterpart to Solidity's `uint200` operator. + * + * Requirements: + * + * - input must fit into 200 bits + * + * _Available since v4.7._ + */ + function toUint200(uint256 value) internal pure returns (uint200) { + require(value <= type(uint200).max, "SafeCast: value doesn't fit in 200 bits"); + return uint200(value); + } + + /** + * @dev Returns the downcasted uint192 from uint256, reverting on + * overflow (when the input is greater than largest uint192). + * + * Counterpart to Solidity's `uint192` operator. + * + * Requirements: + * + * - input must fit into 192 bits + * + * _Available since v4.7._ + */ + function toUint192(uint256 value) internal pure returns (uint192) { + require(value <= type(uint192).max, "SafeCast: value doesn't fit in 192 bits"); + return uint192(value); + } + + /** + * @dev Returns the downcasted uint184 from uint256, reverting on + * overflow (when the input is greater than largest uint184). + * + * Counterpart to Solidity's `uint184` operator. + * + * Requirements: + * + * - input must fit into 184 bits + * + * _Available since v4.7._ + */ + function toUint184(uint256 value) internal pure returns (uint184) { + require(value <= type(uint184).max, "SafeCast: value doesn't fit in 184 bits"); + return uint184(value); + } + + /** + * @dev Returns the downcasted uint176 from uint256, reverting on + * overflow (when the input is greater than largest uint176). + * + * Counterpart to Solidity's `uint176` operator. + * + * Requirements: + * + * - input must fit into 176 bits + * + * _Available since v4.7._ + */ + function toUint176(uint256 value) internal pure returns (uint176) { + require(value <= type(uint176).max, "SafeCast: value doesn't fit in 176 bits"); + return uint176(value); + } + + /** + * @dev Returns the downcasted uint168 from uint256, reverting on + * overflow (when the input is greater than largest uint168). + * + * Counterpart to Solidity's `uint168` operator. + * + * Requirements: + * + * - input must fit into 168 bits + * + * _Available since v4.7._ + */ + function toUint168(uint256 value) internal pure returns (uint168) { + require(value <= type(uint168).max, "SafeCast: value doesn't fit in 168 bits"); + return uint168(value); + } + + /** + * @dev Returns the downcasted uint160 from uint256, reverting on + * overflow (when the input is greater than largest uint160). + * + * Counterpart to Solidity's `uint160` operator. + * + * Requirements: + * + * - input must fit into 160 bits + * + * _Available since v4.7._ + */ + function toUint160(uint256 value) internal pure returns (uint160) { + require(value <= type(uint160).max, "SafeCast: value doesn't fit in 160 bits"); + return uint160(value); + } + + /** + * @dev Returns the downcasted uint152 from uint256, reverting on + * overflow (when the input is greater than largest uint152). + * + * Counterpart to Solidity's `uint152` operator. + * + * Requirements: + * + * - input must fit into 152 bits + * + * _Available since v4.7._ + */ + function toUint152(uint256 value) internal pure returns (uint152) { + require(value <= type(uint152).max, "SafeCast: value doesn't fit in 152 bits"); + return uint152(value); + } + + /** + * @dev Returns the downcasted uint144 from uint256, reverting on + * overflow (when the input is greater than largest uint144). + * + * Counterpart to Solidity's `uint144` operator. + * + * Requirements: + * + * - input must fit into 144 bits + * + * _Available since v4.7._ + */ + function toUint144(uint256 value) internal pure returns (uint144) { + require(value <= type(uint144).max, "SafeCast: value doesn't fit in 144 bits"); + return uint144(value); + } + + /** + * @dev Returns the downcasted uint136 from uint256, reverting on + * overflow (when the input is greater than largest uint136). + * + * Counterpart to Solidity's `uint136` operator. + * + * Requirements: + * + * - input must fit into 136 bits + * + * _Available since v4.7._ + */ + function toUint136(uint256 value) internal pure returns (uint136) { + require(value <= type(uint136).max, "SafeCast: value doesn't fit in 136 bits"); + return uint136(value); + } + + /** + * @dev Returns the downcasted uint128 from uint256, reverting on + * overflow (when the input is greater than largest uint128). + * + * Counterpart to Solidity's `uint128` operator. + * + * Requirements: + * + * - input must fit into 128 bits + * + * _Available since v2.5._ + */ + function toUint128(uint256 value) internal pure returns (uint128) { + require(value <= type(uint128).max, "SafeCast: value doesn't fit in 128 bits"); + return uint128(value); + } + + /** + * @dev Returns the downcasted uint120 from uint256, reverting on + * overflow (when the input is greater than largest uint120). + * + * Counterpart to Solidity's `uint120` operator. + * + * Requirements: + * + * - input must fit into 120 bits + * + * _Available since v4.7._ + */ + function toUint120(uint256 value) internal pure returns (uint120) { + require(value <= type(uint120).max, "SafeCast: value doesn't fit in 120 bits"); + return uint120(value); + } + + /** + * @dev Returns the downcasted uint112 from uint256, reverting on + * overflow (when the input is greater than largest uint112). + * + * Counterpart to Solidity's `uint112` operator. + * + * Requirements: + * + * - input must fit into 112 bits + * + * _Available since v4.7._ + */ + function toUint112(uint256 value) internal pure returns (uint112) { + require(value <= type(uint112).max, "SafeCast: value doesn't fit in 112 bits"); + return uint112(value); + } + + /** + * @dev Returns the downcasted uint104 from uint256, reverting on + * overflow (when the input is greater than largest uint104). + * + * Counterpart to Solidity's `uint104` operator. + * + * Requirements: + * + * - input must fit into 104 bits + * + * _Available since v4.7._ + */ + function toUint104(uint256 value) internal pure returns (uint104) { + require(value <= type(uint104).max, "SafeCast: value doesn't fit in 104 bits"); + return uint104(value); + } + + /** + * @dev Returns the downcasted uint96 from uint256, reverting on + * overflow (when the input is greater than largest uint96). + * + * Counterpart to Solidity's `uint96` operator. + * + * Requirements: + * + * - input must fit into 96 bits + * + * _Available since v4.2._ + */ + function toUint96(uint256 value) internal pure returns (uint96) { + require(value <= type(uint96).max, "SafeCast: value doesn't fit in 96 bits"); + return uint96(value); + } + + /** + * @dev Returns the downcasted uint88 from uint256, reverting on + * overflow (when the input is greater than largest uint88). + * + * Counterpart to Solidity's `uint88` operator. + * + * Requirements: + * + * - input must fit into 88 bits + * + * _Available since v4.7._ + */ + function toUint88(uint256 value) internal pure returns (uint88) { + require(value <= type(uint88).max, "SafeCast: value doesn't fit in 88 bits"); + return uint88(value); + } + + /** + * @dev Returns the downcasted uint80 from uint256, reverting on + * overflow (when the input is greater than largest uint80). + * + * Counterpart to Solidity's `uint80` operator. + * + * Requirements: + * + * - input must fit into 80 bits + * + * _Available since v4.7._ + */ + function toUint80(uint256 value) internal pure returns (uint80) { + require(value <= type(uint80).max, "SafeCast: value doesn't fit in 80 bits"); + return uint80(value); + } + + /** + * @dev Returns the downcasted uint72 from uint256, reverting on + * overflow (when the input is greater than largest uint72). + * + * Counterpart to Solidity's `uint72` operator. + * + * Requirements: + * + * - input must fit into 72 bits + * + * _Available since v4.7._ + */ + function toUint72(uint256 value) internal pure returns (uint72) { + require(value <= type(uint72).max, "SafeCast: value doesn't fit in 72 bits"); + return uint72(value); + } + + /** + * @dev Returns the downcasted uint64 from uint256, reverting on + * overflow (when the input is greater than largest uint64). + * + * Counterpart to Solidity's `uint64` operator. + * + * Requirements: + * + * - input must fit into 64 bits + * + * _Available since v2.5._ + */ + function toUint64(uint256 value) internal pure returns (uint64) { + require(value <= type(uint64).max, "SafeCast: value doesn't fit in 64 bits"); + return uint64(value); + } + + /** + * @dev Returns the downcasted uint56 from uint256, reverting on + * overflow (when the input is greater than largest uint56). + * + * Counterpart to Solidity's `uint56` operator. + * + * Requirements: + * + * - input must fit into 56 bits + * + * _Available since v4.7._ + */ + function toUint56(uint256 value) internal pure returns (uint56) { + require(value <= type(uint56).max, "SafeCast: value doesn't fit in 56 bits"); + return uint56(value); + } + + /** + * @dev Returns the downcasted uint48 from uint256, reverting on + * overflow (when the input is greater than largest uint48). + * + * Counterpart to Solidity's `uint48` operator. + * + * Requirements: + * + * - input must fit into 48 bits + * + * _Available since v4.7._ + */ + function toUint48(uint256 value) internal pure returns (uint48) { + require(value <= type(uint48).max, "SafeCast: value doesn't fit in 48 bits"); + return uint48(value); + } + + /** + * @dev Returns the downcasted uint40 from uint256, reverting on + * overflow (when the input is greater than largest uint40). + * + * Counterpart to Solidity's `uint40` operator. + * + * Requirements: + * + * - input must fit into 40 bits + * + * _Available since v4.7._ + */ + function toUint40(uint256 value) internal pure returns (uint40) { + require(value <= type(uint40).max, "SafeCast: value doesn't fit in 40 bits"); + return uint40(value); + } + + /** + * @dev Returns the downcasted uint32 from uint256, reverting on + * overflow (when the input is greater than largest uint32). + * + * Counterpart to Solidity's `uint32` operator. + * + * Requirements: + * + * - input must fit into 32 bits + * + * _Available since v2.5._ + */ + function toUint32(uint256 value) internal pure returns (uint32) { + require(value <= type(uint32).max, "SafeCast: value doesn't fit in 32 bits"); + return uint32(value); + } + + /** + * @dev Returns the downcasted uint24 from uint256, reverting on + * overflow (when the input is greater than largest uint24). + * + * Counterpart to Solidity's `uint24` operator. + * + * Requirements: + * + * - input must fit into 24 bits + * + * _Available since v4.7._ + */ + function toUint24(uint256 value) internal pure returns (uint24) { + require(value <= type(uint24).max, "SafeCast: value doesn't fit in 24 bits"); + return uint24(value); + } + + /** + * @dev Returns the downcasted uint16 from uint256, reverting on + * overflow (when the input is greater than largest uint16). + * + * Counterpart to Solidity's `uint16` operator. + * + * Requirements: + * + * - input must fit into 16 bits + * + * _Available since v2.5._ + */ + function toUint16(uint256 value) internal pure returns (uint16) { + require(value <= type(uint16).max, "SafeCast: value doesn't fit in 16 bits"); + return uint16(value); + } + + /** + * @dev Returns the downcasted uint8 from uint256, reverting on + * overflow (when the input is greater than largest uint8). + * + * Counterpart to Solidity's `uint8` operator. + * + * Requirements: + * + * - input must fit into 8 bits + * + * _Available since v2.5._ + */ + function toUint8(uint256 value) internal pure returns (uint8) { + require(value <= type(uint8).max, "SafeCast: value doesn't fit in 8 bits"); + return uint8(value); + } + + /** + * @dev Converts a signed int256 into an unsigned uint256. + * + * Requirements: + * + * - input must be greater than or equal to 0. + * + * _Available since v3.0._ + */ + function toUint256(int256 value) internal pure returns (uint256) { + require(value >= 0, "SafeCast: value must be positive"); + return uint256(value); + } + + /** + * @dev Returns the downcasted int248 from int256, reverting on + * overflow (when the input is less than smallest int248 or + * greater than largest int248). + * + * Counterpart to Solidity's `int248` operator. + * + * Requirements: + * + * - input must fit into 248 bits + * + * _Available since v4.7._ + */ + function toInt248(int256 value) internal pure returns (int248 downcasted) { + downcasted = int248(value); + require(downcasted == value, "SafeCast: value doesn't fit in 248 bits"); + } + + /** + * @dev Returns the downcasted int240 from int256, reverting on + * overflow (when the input is less than smallest int240 or + * greater than largest int240). + * + * Counterpart to Solidity's `int240` operator. + * + * Requirements: + * + * - input must fit into 240 bits + * + * _Available since v4.7._ + */ + function toInt240(int256 value) internal pure returns (int240 downcasted) { + downcasted = int240(value); + require(downcasted == value, "SafeCast: value doesn't fit in 240 bits"); + } + + /** + * @dev Returns the downcasted int232 from int256, reverting on + * overflow (when the input is less than smallest int232 or + * greater than largest int232). + * + * Counterpart to Solidity's `int232` operator. + * + * Requirements: + * + * - input must fit into 232 bits + * + * _Available since v4.7._ + */ + function toInt232(int256 value) internal pure returns (int232 downcasted) { + downcasted = int232(value); + require(downcasted == value, "SafeCast: value doesn't fit in 232 bits"); + } + + /** + * @dev Returns the downcasted int224 from int256, reverting on + * overflow (when the input is less than smallest int224 or + * greater than largest int224). + * + * Counterpart to Solidity's `int224` operator. + * + * Requirements: + * + * - input must fit into 224 bits + * + * _Available since v4.7._ + */ + function toInt224(int256 value) internal pure returns (int224 downcasted) { + downcasted = int224(value); + require(downcasted == value, "SafeCast: value doesn't fit in 224 bits"); + } + + /** + * @dev Returns the downcasted int216 from int256, reverting on + * overflow (when the input is less than smallest int216 or + * greater than largest int216). + * + * Counterpart to Solidity's `int216` operator. + * + * Requirements: + * + * - input must fit into 216 bits + * + * _Available since v4.7._ + */ + function toInt216(int256 value) internal pure returns (int216 downcasted) { + downcasted = int216(value); + require(downcasted == value, "SafeCast: value doesn't fit in 216 bits"); + } + + /** + * @dev Returns the downcasted int208 from int256, reverting on + * overflow (when the input is less than smallest int208 or + * greater than largest int208). + * + * Counterpart to Solidity's `int208` operator. + * + * Requirements: + * + * - input must fit into 208 bits + * + * _Available since v4.7._ + */ + function toInt208(int256 value) internal pure returns (int208 downcasted) { + downcasted = int208(value); + require(downcasted == value, "SafeCast: value doesn't fit in 208 bits"); + } + + /** + * @dev Returns the downcasted int200 from int256, reverting on + * overflow (when the input is less than smallest int200 or + * greater than largest int200). + * + * Counterpart to Solidity's `int200` operator. + * + * Requirements: + * + * - input must fit into 200 bits + * + * _Available since v4.7._ + */ + function toInt200(int256 value) internal pure returns (int200 downcasted) { + downcasted = int200(value); + require(downcasted == value, "SafeCast: value doesn't fit in 200 bits"); + } + + /** + * @dev Returns the downcasted int192 from int256, reverting on + * overflow (when the input is less than smallest int192 or + * greater than largest int192). + * + * Counterpart to Solidity's `int192` operator. + * + * Requirements: + * + * - input must fit into 192 bits + * + * _Available since v4.7._ + */ + function toInt192(int256 value) internal pure returns (int192 downcasted) { + downcasted = int192(value); + require(downcasted == value, "SafeCast: value doesn't fit in 192 bits"); + } + + /** + * @dev Returns the downcasted int184 from int256, reverting on + * overflow (when the input is less than smallest int184 or + * greater than largest int184). + * + * Counterpart to Solidity's `int184` operator. + * + * Requirements: + * + * - input must fit into 184 bits + * + * _Available since v4.7._ + */ + function toInt184(int256 value) internal pure returns (int184 downcasted) { + downcasted = int184(value); + require(downcasted == value, "SafeCast: value doesn't fit in 184 bits"); + } + + /** + * @dev Returns the downcasted int176 from int256, reverting on + * overflow (when the input is less than smallest int176 or + * greater than largest int176). + * + * Counterpart to Solidity's `int176` operator. + * + * Requirements: + * + * - input must fit into 176 bits + * + * _Available since v4.7._ + */ + function toInt176(int256 value) internal pure returns (int176 downcasted) { + downcasted = int176(value); + require(downcasted == value, "SafeCast: value doesn't fit in 176 bits"); + } + + /** + * @dev Returns the downcasted int168 from int256, reverting on + * overflow (when the input is less than smallest int168 or + * greater than largest int168). + * + * Counterpart to Solidity's `int168` operator. + * + * Requirements: + * + * - input must fit into 168 bits + * + * _Available since v4.7._ + */ + function toInt168(int256 value) internal pure returns (int168 downcasted) { + downcasted = int168(value); + require(downcasted == value, "SafeCast: value doesn't fit in 168 bits"); + } + + /** + * @dev Returns the downcasted int160 from int256, reverting on + * overflow (when the input is less than smallest int160 or + * greater than largest int160). + * + * Counterpart to Solidity's `int160` operator. + * + * Requirements: + * + * - input must fit into 160 bits + * + * _Available since v4.7._ + */ + function toInt160(int256 value) internal pure returns (int160 downcasted) { + downcasted = int160(value); + require(downcasted == value, "SafeCast: value doesn't fit in 160 bits"); + } + + /** + * @dev Returns the downcasted int152 from int256, reverting on + * overflow (when the input is less than smallest int152 or + * greater than largest int152). + * + * Counterpart to Solidity's `int152` operator. + * + * Requirements: + * + * - input must fit into 152 bits + * + * _Available since v4.7._ + */ + function toInt152(int256 value) internal pure returns (int152 downcasted) { + downcasted = int152(value); + require(downcasted == value, "SafeCast: value doesn't fit in 152 bits"); + } + + /** + * @dev Returns the downcasted int144 from int256, reverting on + * overflow (when the input is less than smallest int144 or + * greater than largest int144). + * + * Counterpart to Solidity's `int144` operator. + * + * Requirements: + * + * - input must fit into 144 bits + * + * _Available since v4.7._ + */ + function toInt144(int256 value) internal pure returns (int144 downcasted) { + downcasted = int144(value); + require(downcasted == value, "SafeCast: value doesn't fit in 144 bits"); + } + + /** + * @dev Returns the downcasted int136 from int256, reverting on + * overflow (when the input is less than smallest int136 or + * greater than largest int136). + * + * Counterpart to Solidity's `int136` operator. + * + * Requirements: + * + * - input must fit into 136 bits + * + * _Available since v4.7._ + */ + function toInt136(int256 value) internal pure returns (int136 downcasted) { + downcasted = int136(value); + require(downcasted == value, "SafeCast: value doesn't fit in 136 bits"); + } + + /** + * @dev Returns the downcasted int128 from int256, reverting on + * overflow (when the input is less than smallest int128 or + * greater than largest int128). + * + * Counterpart to Solidity's `int128` operator. + * + * Requirements: + * + * - input must fit into 128 bits + * + * _Available since v3.1._ + */ + function toInt128(int256 value) internal pure returns (int128 downcasted) { + downcasted = int128(value); + require(downcasted == value, "SafeCast: value doesn't fit in 128 bits"); + } + + /** + * @dev Returns the downcasted int120 from int256, reverting on + * overflow (when the input is less than smallest int120 or + * greater than largest int120). + * + * Counterpart to Solidity's `int120` operator. + * + * Requirements: + * + * - input must fit into 120 bits + * + * _Available since v4.7._ + */ + function toInt120(int256 value) internal pure returns (int120 downcasted) { + downcasted = int120(value); + require(downcasted == value, "SafeCast: value doesn't fit in 120 bits"); + } + + /** + * @dev Returns the downcasted int112 from int256, reverting on + * overflow (when the input is less than smallest int112 or + * greater than largest int112). + * + * Counterpart to Solidity's `int112` operator. + * + * Requirements: + * + * - input must fit into 112 bits + * + * _Available since v4.7._ + */ + function toInt112(int256 value) internal pure returns (int112 downcasted) { + downcasted = int112(value); + require(downcasted == value, "SafeCast: value doesn't fit in 112 bits"); + } + + /** + * @dev Returns the downcasted int104 from int256, reverting on + * overflow (when the input is less than smallest int104 or + * greater than largest int104). + * + * Counterpart to Solidity's `int104` operator. + * + * Requirements: + * + * - input must fit into 104 bits + * + * _Available since v4.7._ + */ + function toInt104(int256 value) internal pure returns (int104 downcasted) { + downcasted = int104(value); + require(downcasted == value, "SafeCast: value doesn't fit in 104 bits"); + } + + /** + * @dev Returns the downcasted int96 from int256, reverting on + * overflow (when the input is less than smallest int96 or + * greater than largest int96). + * + * Counterpart to Solidity's `int96` operator. + * + * Requirements: + * + * - input must fit into 96 bits + * + * _Available since v4.7._ + */ + function toInt96(int256 value) internal pure returns (int96 downcasted) { + downcasted = int96(value); + require(downcasted == value, "SafeCast: value doesn't fit in 96 bits"); + } + + /** + * @dev Returns the downcasted int88 from int256, reverting on + * overflow (when the input is less than smallest int88 or + * greater than largest int88). + * + * Counterpart to Solidity's `int88` operator. + * + * Requirements: + * + * - input must fit into 88 bits + * + * _Available since v4.7._ + */ + function toInt88(int256 value) internal pure returns (int88 downcasted) { + downcasted = int88(value); + require(downcasted == value, "SafeCast: value doesn't fit in 88 bits"); + } + + /** + * @dev Returns the downcasted int80 from int256, reverting on + * overflow (when the input is less than smallest int80 or + * greater than largest int80). + * + * Counterpart to Solidity's `int80` operator. + * + * Requirements: + * + * - input must fit into 80 bits + * + * _Available since v4.7._ + */ + function toInt80(int256 value) internal pure returns (int80 downcasted) { + downcasted = int80(value); + require(downcasted == value, "SafeCast: value doesn't fit in 80 bits"); + } + + /** + * @dev Returns the downcasted int72 from int256, reverting on + * overflow (when the input is less than smallest int72 or + * greater than largest int72). + * + * Counterpart to Solidity's `int72` operator. + * + * Requirements: + * + * - input must fit into 72 bits + * + * _Available since v4.7._ + */ + function toInt72(int256 value) internal pure returns (int72 downcasted) { + downcasted = int72(value); + require(downcasted == value, "SafeCast: value doesn't fit in 72 bits"); + } + + /** + * @dev Returns the downcasted int64 from int256, reverting on + * overflow (when the input is less than smallest int64 or + * greater than largest int64). + * + * Counterpart to Solidity's `int64` operator. + * + * Requirements: + * + * - input must fit into 64 bits + * + * _Available since v3.1._ + */ + function toInt64(int256 value) internal pure returns (int64 downcasted) { + downcasted = int64(value); + require(downcasted == value, "SafeCast: value doesn't fit in 64 bits"); + } + + /** + * @dev Returns the downcasted int56 from int256, reverting on + * overflow (when the input is less than smallest int56 or + * greater than largest int56). + * + * Counterpart to Solidity's `int56` operator. + * + * Requirements: + * + * - input must fit into 56 bits + * + * _Available since v4.7._ + */ + function toInt56(int256 value) internal pure returns (int56 downcasted) { + downcasted = int56(value); + require(downcasted == value, "SafeCast: value doesn't fit in 56 bits"); + } + + /** + * @dev Returns the downcasted int48 from int256, reverting on + * overflow (when the input is less than smallest int48 or + * greater than largest int48). + * + * Counterpart to Solidity's `int48` operator. + * + * Requirements: + * + * - input must fit into 48 bits + * + * _Available since v4.7._ + */ + function toInt48(int256 value) internal pure returns (int48 downcasted) { + downcasted = int48(value); + require(downcasted == value, "SafeCast: value doesn't fit in 48 bits"); + } + + /** + * @dev Returns the downcasted int40 from int256, reverting on + * overflow (when the input is less than smallest int40 or + * greater than largest int40). + * + * Counterpart to Solidity's `int40` operator. + * + * Requirements: + * + * - input must fit into 40 bits + * + * _Available since v4.7._ + */ + function toInt40(int256 value) internal pure returns (int40 downcasted) { + downcasted = int40(value); + require(downcasted == value, "SafeCast: value doesn't fit in 40 bits"); + } + + /** + * @dev Returns the downcasted int32 from int256, reverting on + * overflow (when the input is less than smallest int32 or + * greater than largest int32). + * + * Counterpart to Solidity's `int32` operator. + * + * Requirements: + * + * - input must fit into 32 bits + * + * _Available since v3.1._ + */ + function toInt32(int256 value) internal pure returns (int32 downcasted) { + downcasted = int32(value); + require(downcasted == value, "SafeCast: value doesn't fit in 32 bits"); + } + + /** + * @dev Returns the downcasted int24 from int256, reverting on + * overflow (when the input is less than smallest int24 or + * greater than largest int24). + * + * Counterpart to Solidity's `int24` operator. + * + * Requirements: + * + * - input must fit into 24 bits + * + * _Available since v4.7._ + */ + function toInt24(int256 value) internal pure returns (int24 downcasted) { + downcasted = int24(value); + require(downcasted == value, "SafeCast: value doesn't fit in 24 bits"); + } + + /** + * @dev Returns the downcasted int16 from int256, reverting on + * overflow (when the input is less than smallest int16 or + * greater than largest int16). + * + * Counterpart to Solidity's `int16` operator. + * + * Requirements: + * + * - input must fit into 16 bits + * + * _Available since v3.1._ + */ + function toInt16(int256 value) internal pure returns (int16 downcasted) { + downcasted = int16(value); + require(downcasted == value, "SafeCast: value doesn't fit in 16 bits"); + } + + /** + * @dev Returns the downcasted int8 from int256, reverting on + * overflow (when the input is less than smallest int8 or + * greater than largest int8). + * + * Counterpart to Solidity's `int8` operator. + * + * Requirements: + * + * - input must fit into 8 bits + * + * _Available since v3.1._ + */ + function toInt8(int256 value) internal pure returns (int8 downcasted) { + downcasted = int8(value); + require(downcasted == value, "SafeCast: value doesn't fit in 8 bits"); + } + + /** + * @dev Converts an unsigned uint256 into a signed int256. + * + * Requirements: + * + * - input must be less than or equal to maxInt256. + * + * _Available since v3.0._ + */ + function toInt256(uint256 value) internal pure returns (int256) { + // Note: Unsafe cast below is okay because `type(int256).max` is guaranteed to be positive + require(value <= uint256(type(int256).max), "SafeCast: value doesn't fit in an int256"); + return int256(value); + } +} diff --git a/lib/openzeppelin-contracts/contracts/utils/math/SafeMath.sol b/lib/openzeppelin-contracts/contracts/utils/math/SafeMath.sol new file mode 100644 index 0000000..2f48fb7 --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/utils/math/SafeMath.sol @@ -0,0 +1,215 @@ +// SPDX-License-Identifier: MIT +// OpenZeppelin Contracts (last updated v4.6.0) (utils/math/SafeMath.sol) + +pragma solidity ^0.8.0; + +// CAUTION +// This version of SafeMath should only be used with Solidity 0.8 or later, +// because it relies on the compiler's built in overflow checks. + +/** + * @dev Wrappers over Solidity's arithmetic operations. + * + * NOTE: `SafeMath` is generally not needed starting with Solidity 0.8, since the compiler + * now has built in overflow checking. + */ +library SafeMath { + /** + * @dev Returns the addition of two unsigned integers, with an overflow flag. + * + * _Available since v3.4._ + */ + function tryAdd(uint256 a, uint256 b) internal pure returns (bool, uint256) { + unchecked { + uint256 c = a + b; + if (c < a) return (false, 0); + return (true, c); + } + } + + /** + * @dev Returns the subtraction of two unsigned integers, with an overflow flag. + * + * _Available since v3.4._ + */ + function trySub(uint256 a, uint256 b) internal pure returns (bool, uint256) { + unchecked { + if (b > a) return (false, 0); + return (true, a - b); + } + } + + /** + * @dev Returns the multiplication of two unsigned integers, with an overflow flag. + * + * _Available since v3.4._ + */ + function tryMul(uint256 a, uint256 b) internal pure returns (bool, uint256) { + unchecked { + // Gas optimization: this is cheaper than requiring 'a' not being zero, but the + // benefit is lost if 'b' is also tested. + // See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522 + if (a == 0) return (true, 0); + uint256 c = a * b; + if (c / a != b) return (false, 0); + return (true, c); + } + } + + /** + * @dev Returns the division of two unsigned integers, with a division by zero flag. + * + * _Available since v3.4._ + */ + function tryDiv(uint256 a, uint256 b) internal pure returns (bool, uint256) { + unchecked { + if (b == 0) return (false, 0); + return (true, a / b); + } + } + + /** + * @dev Returns the remainder of dividing two unsigned integers, with a division by zero flag. + * + * _Available since v3.4._ + */ + function tryMod(uint256 a, uint256 b) internal pure returns (bool, uint256) { + unchecked { + if (b == 0) return (false, 0); + return (true, a % b); + } + } + + /** + * @dev Returns the addition of two unsigned integers, reverting on + * overflow. + * + * Counterpart to Solidity's `+` operator. + * + * Requirements: + * + * - Addition cannot overflow. + */ + function add(uint256 a, uint256 b) internal pure returns (uint256) { + return a + b; + } + + /** + * @dev Returns the subtraction of two unsigned integers, reverting on + * overflow (when the result is negative). + * + * Counterpart to Solidity's `-` operator. + * + * Requirements: + * + * - Subtraction cannot overflow. + */ + function sub(uint256 a, uint256 b) internal pure returns (uint256) { + return a - b; + } + + /** + * @dev Returns the multiplication of two unsigned integers, reverting on + * overflow. + * + * Counterpart to Solidity's `*` operator. + * + * Requirements: + * + * - Multiplication cannot overflow. + */ + function mul(uint256 a, uint256 b) internal pure returns (uint256) { + return a * b; + } + + /** + * @dev Returns the integer division of two unsigned integers, reverting on + * division by zero. The result is rounded towards zero. + * + * Counterpart to Solidity's `/` operator. + * + * Requirements: + * + * - The divisor cannot be zero. + */ + function div(uint256 a, uint256 b) internal pure returns (uint256) { + return a / b; + } + + /** + * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo), + * reverting when dividing by zero. + * + * Counterpart to Solidity's `%` operator. This function uses a `revert` + * opcode (which leaves remaining gas untouched) while Solidity uses an + * invalid opcode to revert (consuming all remaining gas). + * + * Requirements: + * + * - The divisor cannot be zero. + */ + function mod(uint256 a, uint256 b) internal pure returns (uint256) { + return a % b; + } + + /** + * @dev Returns the subtraction of two unsigned integers, reverting with custom message on + * overflow (when the result is negative). + * + * CAUTION: This function is deprecated because it requires allocating memory for the error + * message unnecessarily. For custom revert reasons use {trySub}. + * + * Counterpart to Solidity's `-` operator. + * + * Requirements: + * + * - Subtraction cannot overflow. + */ + function sub(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) { + unchecked { + require(b <= a, errorMessage); + return a - b; + } + } + + /** + * @dev Returns the integer division of two unsigned integers, reverting with custom message on + * division by zero. The result is rounded towards zero. + * + * Counterpart to Solidity's `/` operator. Note: this function uses a + * `revert` opcode (which leaves remaining gas untouched) while Solidity + * uses an invalid opcode to revert (consuming all remaining gas). + * + * Requirements: + * + * - The divisor cannot be zero. + */ + function div(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) { + unchecked { + require(b > 0, errorMessage); + return a / b; + } + } + + /** + * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo), + * reverting with custom message when dividing by zero. + * + * CAUTION: This function is deprecated because it requires allocating memory for the error + * message unnecessarily. For custom revert reasons use {tryMod}. + * + * Counterpart to Solidity's `%` operator. This function uses a `revert` + * opcode (which leaves remaining gas untouched) while Solidity uses an + * invalid opcode to revert (consuming all remaining gas). + * + * Requirements: + * + * - The divisor cannot be zero. + */ + function mod(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) { + unchecked { + require(b > 0, errorMessage); + return a % b; + } + } +} diff --git a/lib/openzeppelin-contracts/contracts/utils/math/SignedMath.sol b/lib/openzeppelin-contracts/contracts/utils/math/SignedMath.sol new file mode 100644 index 0000000..3ea9f8b --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/utils/math/SignedMath.sol @@ -0,0 +1,43 @@ +// SPDX-License-Identifier: MIT +// OpenZeppelin Contracts (last updated v4.8.0) (utils/math/SignedMath.sol) + +pragma solidity ^0.8.0; + +/** + * @dev Standard signed math utilities missing in the Solidity language. + */ +library SignedMath { + /** + * @dev Returns the largest of two signed numbers. + */ + function max(int256 a, int256 b) internal pure returns (int256) { + return a > b ? a : b; + } + + /** + * @dev Returns the smallest of two signed numbers. + */ + function min(int256 a, int256 b) internal pure returns (int256) { + return a < b ? a : b; + } + + /** + * @dev Returns the average of two signed numbers without overflow. + * The result is rounded towards zero. + */ + function average(int256 a, int256 b) internal pure returns (int256) { + // Formula from the book "Hacker's Delight" + int256 x = (a & b) + ((a ^ b) >> 1); + return x + (int256(uint256(x) >> 255) & (a ^ b)); + } + + /** + * @dev Returns the absolute unsigned value of a signed value. + */ + function abs(int256 n) internal pure returns (uint256) { + unchecked { + // must be unchecked in order to support `n = type(int256).min` + return uint256(n >= 0 ? n : -n); + } + } +} diff --git a/lib/openzeppelin-contracts/contracts/utils/math/SignedSafeMath.sol b/lib/openzeppelin-contracts/contracts/utils/math/SignedSafeMath.sol new file mode 100644 index 0000000..6704d4c --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/utils/math/SignedSafeMath.sol @@ -0,0 +1,68 @@ +// SPDX-License-Identifier: MIT +// OpenZeppelin Contracts v4.4.1 (utils/math/SignedSafeMath.sol) + +pragma solidity ^0.8.0; + +/** + * @dev Wrappers over Solidity's arithmetic operations. + * + * NOTE: `SignedSafeMath` is no longer needed starting with Solidity 0.8. The compiler + * now has built in overflow checking. + */ +library SignedSafeMath { + /** + * @dev Returns the multiplication of two signed integers, reverting on + * overflow. + * + * Counterpart to Solidity's `*` operator. + * + * Requirements: + * + * - Multiplication cannot overflow. + */ + function mul(int256 a, int256 b) internal pure returns (int256) { + return a * b; + } + + /** + * @dev Returns the integer division of two signed integers. Reverts on + * division by zero. The result is rounded towards zero. + * + * Counterpart to Solidity's `/` operator. + * + * Requirements: + * + * - The divisor cannot be zero. + */ + function div(int256 a, int256 b) internal pure returns (int256) { + return a / b; + } + + /** + * @dev Returns the subtraction of two signed integers, reverting on + * overflow. + * + * Counterpart to Solidity's `-` operator. + * + * Requirements: + * + * - Subtraction cannot overflow. + */ + function sub(int256 a, int256 b) internal pure returns (int256) { + return a - b; + } + + /** + * @dev Returns the addition of two signed integers, reverting on + * overflow. + * + * Counterpart to Solidity's `+` operator. + * + * Requirements: + * + * - Addition cannot overflow. + */ + function add(int256 a, int256 b) internal pure returns (int256) { + return a + b; + } +} diff --git a/lib/openzeppelin-contracts/contracts/utils/structs/BitMaps.sol b/lib/openzeppelin-contracts/contracts/utils/structs/BitMaps.sol new file mode 100644 index 0000000..eb67bfa --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/utils/structs/BitMaps.sol @@ -0,0 +1,51 @@ +// SPDX-License-Identifier: MIT +// OpenZeppelin Contracts (last updated v4.8.0) (utils/structs/BitMaps.sol) +pragma solidity ^0.8.0; + +/** + * @dev Library for managing uint256 to bool mapping in a compact and efficient way, providing the keys are sequential. + * Largely inspired by Uniswap's https://github.com/Uniswap/merkle-distributor/blob/master/contracts/MerkleDistributor.sol[merkle-distributor]. + */ +library BitMaps { + struct BitMap { + mapping(uint256 => uint256) _data; + } + + /** + * @dev Returns whether the bit at `index` is set. + */ + function get(BitMap storage bitmap, uint256 index) internal view returns (bool) { + uint256 bucket = index >> 8; + uint256 mask = 1 << (index & 0xff); + return bitmap._data[bucket] & mask != 0; + } + + /** + * @dev Sets the bit at `index` to the boolean `value`. + */ + function setTo(BitMap storage bitmap, uint256 index, bool value) internal { + if (value) { + set(bitmap, index); + } else { + unset(bitmap, index); + } + } + + /** + * @dev Sets the bit at `index`. + */ + function set(BitMap storage bitmap, uint256 index) internal { + uint256 bucket = index >> 8; + uint256 mask = 1 << (index & 0xff); + bitmap._data[bucket] |= mask; + } + + /** + * @dev Unsets the bit at `index`. + */ + function unset(BitMap storage bitmap, uint256 index) internal { + uint256 bucket = index >> 8; + uint256 mask = 1 << (index & 0xff); + bitmap._data[bucket] &= ~mask; + } +} diff --git a/lib/openzeppelin-contracts/contracts/utils/structs/DoubleEndedQueue.sol b/lib/openzeppelin-contracts/contracts/utils/structs/DoubleEndedQueue.sol new file mode 100644 index 0000000..eae79ad --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/utils/structs/DoubleEndedQueue.sol @@ -0,0 +1,170 @@ +// SPDX-License-Identifier: MIT +// OpenZeppelin Contracts (last updated v4.6.0) (utils/structs/DoubleEndedQueue.sol) +pragma solidity ^0.8.4; + +import "../math/SafeCast.sol"; + +/** + * @dev A sequence of items with the ability to efficiently push and pop items (i.e. insert and remove) on both ends of + * the sequence (called front and back). Among other access patterns, it can be used to implement efficient LIFO and + * FIFO queues. Storage use is optimized, and all operations are O(1) constant time. This includes {clear}, given that + * the existing queue contents are left in storage. + * + * The struct is called `Bytes32Deque`. Other types can be cast to and from `bytes32`. This data structure can only be + * used in storage, and not in memory. + * ``` + * DoubleEndedQueue.Bytes32Deque queue; + * ``` + * + * _Available since v4.6._ + */ +library DoubleEndedQueue { + /** + * @dev An operation (e.g. {front}) couldn't be completed due to the queue being empty. + */ + error Empty(); + + /** + * @dev An operation (e.g. {at}) couldn't be completed due to an index being out of bounds. + */ + error OutOfBounds(); + + /** + * @dev Indices are signed integers because the queue can grow in any direction. They are 128 bits so begin and end + * are packed in a single storage slot for efficient access. Since the items are added one at a time we can safely + * assume that these 128-bit indices will not overflow, and use unchecked arithmetic. + * + * Struct members have an underscore prefix indicating that they are "private" and should not be read or written to + * directly. Use the functions provided below instead. Modifying the struct manually may violate assumptions and + * lead to unexpected behavior. + * + * Indices are in the range [begin, end) which means the first item is at data[begin] and the last item is at + * data[end - 1]. + */ + struct Bytes32Deque { + int128 _begin; + int128 _end; + mapping(int128 => bytes32) _data; + } + + /** + * @dev Inserts an item at the end of the queue. + */ + function pushBack(Bytes32Deque storage deque, bytes32 value) internal { + int128 backIndex = deque._end; + deque._data[backIndex] = value; + unchecked { + deque._end = backIndex + 1; + } + } + + /** + * @dev Removes the item at the end of the queue and returns it. + * + * Reverts with `Empty` if the queue is empty. + */ + function popBack(Bytes32Deque storage deque) internal returns (bytes32 value) { + if (empty(deque)) revert Empty(); + int128 backIndex; + unchecked { + backIndex = deque._end - 1; + } + value = deque._data[backIndex]; + delete deque._data[backIndex]; + deque._end = backIndex; + } + + /** + * @dev Inserts an item at the beginning of the queue. + */ + function pushFront(Bytes32Deque storage deque, bytes32 value) internal { + int128 frontIndex; + unchecked { + frontIndex = deque._begin - 1; + } + deque._data[frontIndex] = value; + deque._begin = frontIndex; + } + + /** + * @dev Removes the item at the beginning of the queue and returns it. + * + * Reverts with `Empty` if the queue is empty. + */ + function popFront(Bytes32Deque storage deque) internal returns (bytes32 value) { + if (empty(deque)) revert Empty(); + int128 frontIndex = deque._begin; + value = deque._data[frontIndex]; + delete deque._data[frontIndex]; + unchecked { + deque._begin = frontIndex + 1; + } + } + + /** + * @dev Returns the item at the beginning of the queue. + * + * Reverts with `Empty` if the queue is empty. + */ + function front(Bytes32Deque storage deque) internal view returns (bytes32 value) { + if (empty(deque)) revert Empty(); + int128 frontIndex = deque._begin; + return deque._data[frontIndex]; + } + + /** + * @dev Returns the item at the end of the queue. + * + * Reverts with `Empty` if the queue is empty. + */ + function back(Bytes32Deque storage deque) internal view returns (bytes32 value) { + if (empty(deque)) revert Empty(); + int128 backIndex; + unchecked { + backIndex = deque._end - 1; + } + return deque._data[backIndex]; + } + + /** + * @dev Return the item at a position in the queue given by `index`, with the first item at 0 and last item at + * `length(deque) - 1`. + * + * Reverts with `OutOfBounds` if the index is out of bounds. + */ + function at(Bytes32Deque storage deque, uint256 index) internal view returns (bytes32 value) { + // int256(deque._begin) is a safe upcast + int128 idx = SafeCast.toInt128(int256(deque._begin) + SafeCast.toInt256(index)); + if (idx >= deque._end) revert OutOfBounds(); + return deque._data[idx]; + } + + /** + * @dev Resets the queue back to being empty. + * + * NOTE: The current items are left behind in storage. This does not affect the functioning of the queue, but misses + * out on potential gas refunds. + */ + function clear(Bytes32Deque storage deque) internal { + deque._begin = 0; + deque._end = 0; + } + + /** + * @dev Returns the number of items in the queue. + */ + function length(Bytes32Deque storage deque) internal view returns (uint256) { + // The interface preserves the invariant that begin <= end so we assume this will not overflow. + // We also assume there are at most int256.max items in the queue. + unchecked { + return uint256(int256(deque._end) - int256(deque._begin)); + } + } + + /** + * @dev Returns true if the queue is empty. + */ + function empty(Bytes32Deque storage deque) internal view returns (bool) { + return deque._end <= deque._begin; + } +} diff --git a/lib/openzeppelin-contracts/contracts/utils/structs/EnumerableMap.sol b/lib/openzeppelin-contracts/contracts/utils/structs/EnumerableMap.sol new file mode 100644 index 0000000..8b188c7 --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/utils/structs/EnumerableMap.sol @@ -0,0 +1,598 @@ +// SPDX-License-Identifier: MIT +// OpenZeppelin Contracts (last updated v4.8.0) (utils/structs/EnumerableMap.sol) +// This file was procedurally generated from scripts/generate/templates/EnumerableMap.js. + +pragma solidity ^0.8.0; + +import "./EnumerableSet.sol"; + +/** + * @dev Library for managing an enumerable variant of Solidity's + * https://solidity.readthedocs.io/en/latest/types.html#mapping-types[`mapping`] + * type. + * + * Maps have the following properties: + * + * - Entries are added, removed, and checked for existence in constant time + * (O(1)). + * - Entries are enumerated in O(n). No guarantees are made on the ordering. + * + * ``` + * contract Example { + * // Add the library methods + * using EnumerableMap for EnumerableMap.UintToAddressMap; + * + * // Declare a set state variable + * EnumerableMap.UintToAddressMap private myMap; + * } + * ``` + * + * The following map types are supported: + * + * - `uint256 -> address` (`UintToAddressMap`) since v3.0.0 + * - `address -> uint256` (`AddressToUintMap`) since v4.6.0 + * - `bytes32 -> bytes32` (`Bytes32ToBytes32Map`) since v4.6.0 + * - `uint256 -> uint256` (`UintToUintMap`) since v4.7.0 + * - `bytes32 -> uint256` (`Bytes32ToUintMap`) since v4.7.0 + * + * [WARNING] + * ==== + * Trying to delete such a structure from storage will likely result in data corruption, rendering the structure + * unusable. + * See https://github.com/ethereum/solidity/pull/11843[ethereum/solidity#11843] for more info. + * + * In order to clean an EnumerableMap, you can either remove all elements one by one or create a fresh instance using an + * array of EnumerableMap. + * ==== + */ +library EnumerableMap { + using EnumerableSet for EnumerableSet.Bytes32Set; + + // To implement this library for multiple types with as little code + // repetition as possible, we write it in terms of a generic Map type with + // bytes32 keys and values. + // The Map implementation uses private functions, and user-facing + // implementations (such as Uint256ToAddressMap) are just wrappers around + // the underlying Map. + // This means that we can only create new EnumerableMaps for types that fit + // in bytes32. + + struct Bytes32ToBytes32Map { + // Storage of keys + EnumerableSet.Bytes32Set _keys; + mapping(bytes32 => bytes32) _values; + } + + /** + * @dev Adds a key-value pair to a map, or updates the value for an existing + * key. O(1). + * + * Returns true if the key was added to the map, that is if it was not + * already present. + */ + function set(Bytes32ToBytes32Map storage map, bytes32 key, bytes32 value) internal returns (bool) { + map._values[key] = value; + return map._keys.add(key); + } + + /** + * @dev Removes a key-value pair from a map. O(1). + * + * Returns true if the key was removed from the map, that is if it was present. + */ + function remove(Bytes32ToBytes32Map storage map, bytes32 key) internal returns (bool) { + delete map._values[key]; + return map._keys.remove(key); + } + + /** + * @dev Returns true if the key is in the map. O(1). + */ + function contains(Bytes32ToBytes32Map storage map, bytes32 key) internal view returns (bool) { + return map._keys.contains(key); + } + + /** + * @dev Returns the number of key-value pairs in the map. O(1). + */ + function length(Bytes32ToBytes32Map storage map) internal view returns (uint256) { + return map._keys.length(); + } + + /** + * @dev Returns the key-value pair stored at position `index` in the map. O(1). + * + * Note that there are no guarantees on the ordering of entries inside the + * array, and it may change when more entries are added or removed. + * + * Requirements: + * + * - `index` must be strictly less than {length}. + */ + function at(Bytes32ToBytes32Map storage map, uint256 index) internal view returns (bytes32, bytes32) { + bytes32 key = map._keys.at(index); + return (key, map._values[key]); + } + + /** + * @dev Tries to returns the value associated with `key`. O(1). + * Does not revert if `key` is not in the map. + */ + function tryGet(Bytes32ToBytes32Map storage map, bytes32 key) internal view returns (bool, bytes32) { + bytes32 value = map._values[key]; + if (value == bytes32(0)) { + return (contains(map, key), bytes32(0)); + } else { + return (true, value); + } + } + + /** + * @dev Returns the value associated with `key`. O(1). + * + * Requirements: + * + * - `key` must be in the map. + */ + function get(Bytes32ToBytes32Map storage map, bytes32 key) internal view returns (bytes32) { + bytes32 value = map._values[key]; + require(value != 0 || contains(map, key), "EnumerableMap: nonexistent key"); + return value; + } + + /** + * @dev Same as {get}, with a custom error message when `key` is not in the map. + * + * CAUTION: This function is deprecated because it requires allocating memory for the error + * message unnecessarily. For custom revert reasons use {tryGet}. + */ + function get( + Bytes32ToBytes32Map storage map, + bytes32 key, + string memory errorMessage + ) internal view returns (bytes32) { + bytes32 value = map._values[key]; + require(value != 0 || contains(map, key), errorMessage); + return value; + } + + /** + * @dev Return the an array containing all the keys + * + * WARNING: This operation will copy the entire storage to memory, which can be quite expensive. This is designed + * to mostly be used by view accessors that are queried without any gas fees. Developers should keep in mind that + * this function has an unbounded cost, and using it as part of a state-changing function may render the function + * uncallable if the map grows to a point where copying to memory consumes too much gas to fit in a block. + */ + function keys(Bytes32ToBytes32Map storage map) internal view returns (bytes32[] memory) { + return map._keys.values(); + } + + // UintToUintMap + + struct UintToUintMap { + Bytes32ToBytes32Map _inner; + } + + /** + * @dev Adds a key-value pair to a map, or updates the value for an existing + * key. O(1). + * + * Returns true if the key was added to the map, that is if it was not + * already present. + */ + function set(UintToUintMap storage map, uint256 key, uint256 value) internal returns (bool) { + return set(map._inner, bytes32(key), bytes32(value)); + } + + /** + * @dev Removes a value from a map. O(1). + * + * Returns true if the key was removed from the map, that is if it was present. + */ + function remove(UintToUintMap storage map, uint256 key) internal returns (bool) { + return remove(map._inner, bytes32(key)); + } + + /** + * @dev Returns true if the key is in the map. O(1). + */ + function contains(UintToUintMap storage map, uint256 key) internal view returns (bool) { + return contains(map._inner, bytes32(key)); + } + + /** + * @dev Returns the number of elements in the map. O(1). + */ + function length(UintToUintMap storage map) internal view returns (uint256) { + return length(map._inner); + } + + /** + * @dev Returns the element stored at position `index` in the map. O(1). + * Note that there are no guarantees on the ordering of values inside the + * array, and it may change when more values are added or removed. + * + * Requirements: + * + * - `index` must be strictly less than {length}. + */ + function at(UintToUintMap storage map, uint256 index) internal view returns (uint256, uint256) { + (bytes32 key, bytes32 value) = at(map._inner, index); + return (uint256(key), uint256(value)); + } + + /** + * @dev Tries to returns the value associated with `key`. O(1). + * Does not revert if `key` is not in the map. + */ + function tryGet(UintToUintMap storage map, uint256 key) internal view returns (bool, uint256) { + (bool success, bytes32 value) = tryGet(map._inner, bytes32(key)); + return (success, uint256(value)); + } + + /** + * @dev Returns the value associated with `key`. O(1). + * + * Requirements: + * + * - `key` must be in the map. + */ + function get(UintToUintMap storage map, uint256 key) internal view returns (uint256) { + return uint256(get(map._inner, bytes32(key))); + } + + /** + * @dev Same as {get}, with a custom error message when `key` is not in the map. + * + * CAUTION: This function is deprecated because it requires allocating memory for the error + * message unnecessarily. For custom revert reasons use {tryGet}. + */ + function get(UintToUintMap storage map, uint256 key, string memory errorMessage) internal view returns (uint256) { + return uint256(get(map._inner, bytes32(key), errorMessage)); + } + + /** + * @dev Return the an array containing all the keys + * + * WARNING: This operation will copy the entire storage to memory, which can be quite expensive. This is designed + * to mostly be used by view accessors that are queried without any gas fees. Developers should keep in mind that + * this function has an unbounded cost, and using it as part of a state-changing function may render the function + * uncallable if the map grows to a point where copying to memory consumes too much gas to fit in a block. + */ + function keys(UintToUintMap storage map) internal view returns (uint256[] memory) { + bytes32[] memory store = keys(map._inner); + uint256[] memory result; + + /// @solidity memory-safe-assembly + assembly { + result := store + } + + return result; + } + + // UintToAddressMap + + struct UintToAddressMap { + Bytes32ToBytes32Map _inner; + } + + /** + * @dev Adds a key-value pair to a map, or updates the value for an existing + * key. O(1). + * + * Returns true if the key was added to the map, that is if it was not + * already present. + */ + function set(UintToAddressMap storage map, uint256 key, address value) internal returns (bool) { + return set(map._inner, bytes32(key), bytes32(uint256(uint160(value)))); + } + + /** + * @dev Removes a value from a map. O(1). + * + * Returns true if the key was removed from the map, that is if it was present. + */ + function remove(UintToAddressMap storage map, uint256 key) internal returns (bool) { + return remove(map._inner, bytes32(key)); + } + + /** + * @dev Returns true if the key is in the map. O(1). + */ + function contains(UintToAddressMap storage map, uint256 key) internal view returns (bool) { + return contains(map._inner, bytes32(key)); + } + + /** + * @dev Returns the number of elements in the map. O(1). + */ + function length(UintToAddressMap storage map) internal view returns (uint256) { + return length(map._inner); + } + + /** + * @dev Returns the element stored at position `index` in the map. O(1). + * Note that there are no guarantees on the ordering of values inside the + * array, and it may change when more values are added or removed. + * + * Requirements: + * + * - `index` must be strictly less than {length}. + */ + function at(UintToAddressMap storage map, uint256 index) internal view returns (uint256, address) { + (bytes32 key, bytes32 value) = at(map._inner, index); + return (uint256(key), address(uint160(uint256(value)))); + } + + /** + * @dev Tries to returns the value associated with `key`. O(1). + * Does not revert if `key` is not in the map. + */ + function tryGet(UintToAddressMap storage map, uint256 key) internal view returns (bool, address) { + (bool success, bytes32 value) = tryGet(map._inner, bytes32(key)); + return (success, address(uint160(uint256(value)))); + } + + /** + * @dev Returns the value associated with `key`. O(1). + * + * Requirements: + * + * - `key` must be in the map. + */ + function get(UintToAddressMap storage map, uint256 key) internal view returns (address) { + return address(uint160(uint256(get(map._inner, bytes32(key))))); + } + + /** + * @dev Same as {get}, with a custom error message when `key` is not in the map. + * + * CAUTION: This function is deprecated because it requires allocating memory for the error + * message unnecessarily. For custom revert reasons use {tryGet}. + */ + function get( + UintToAddressMap storage map, + uint256 key, + string memory errorMessage + ) internal view returns (address) { + return address(uint160(uint256(get(map._inner, bytes32(key), errorMessage)))); + } + + /** + * @dev Return the an array containing all the keys + * + * WARNING: This operation will copy the entire storage to memory, which can be quite expensive. This is designed + * to mostly be used by view accessors that are queried without any gas fees. Developers should keep in mind that + * this function has an unbounded cost, and using it as part of a state-changing function may render the function + * uncallable if the map grows to a point where copying to memory consumes too much gas to fit in a block. + */ + function keys(UintToAddressMap storage map) internal view returns (uint256[] memory) { + bytes32[] memory store = keys(map._inner); + uint256[] memory result; + + /// @solidity memory-safe-assembly + assembly { + result := store + } + + return result; + } + + // AddressToUintMap + + struct AddressToUintMap { + Bytes32ToBytes32Map _inner; + } + + /** + * @dev Adds a key-value pair to a map, or updates the value for an existing + * key. O(1). + * + * Returns true if the key was added to the map, that is if it was not + * already present. + */ + function set(AddressToUintMap storage map, address key, uint256 value) internal returns (bool) { + return set(map._inner, bytes32(uint256(uint160(key))), bytes32(value)); + } + + /** + * @dev Removes a value from a map. O(1). + * + * Returns true if the key was removed from the map, that is if it was present. + */ + function remove(AddressToUintMap storage map, address key) internal returns (bool) { + return remove(map._inner, bytes32(uint256(uint160(key)))); + } + + /** + * @dev Returns true if the key is in the map. O(1). + */ + function contains(AddressToUintMap storage map, address key) internal view returns (bool) { + return contains(map._inner, bytes32(uint256(uint160(key)))); + } + + /** + * @dev Returns the number of elements in the map. O(1). + */ + function length(AddressToUintMap storage map) internal view returns (uint256) { + return length(map._inner); + } + + /** + * @dev Returns the element stored at position `index` in the map. O(1). + * Note that there are no guarantees on the ordering of values inside the + * array, and it may change when more values are added or removed. + * + * Requirements: + * + * - `index` must be strictly less than {length}. + */ + function at(AddressToUintMap storage map, uint256 index) internal view returns (address, uint256) { + (bytes32 key, bytes32 value) = at(map._inner, index); + return (address(uint160(uint256(key))), uint256(value)); + } + + /** + * @dev Tries to returns the value associated with `key`. O(1). + * Does not revert if `key` is not in the map. + */ + function tryGet(AddressToUintMap storage map, address key) internal view returns (bool, uint256) { + (bool success, bytes32 value) = tryGet(map._inner, bytes32(uint256(uint160(key)))); + return (success, uint256(value)); + } + + /** + * @dev Returns the value associated with `key`. O(1). + * + * Requirements: + * + * - `key` must be in the map. + */ + function get(AddressToUintMap storage map, address key) internal view returns (uint256) { + return uint256(get(map._inner, bytes32(uint256(uint160(key))))); + } + + /** + * @dev Same as {get}, with a custom error message when `key` is not in the map. + * + * CAUTION: This function is deprecated because it requires allocating memory for the error + * message unnecessarily. For custom revert reasons use {tryGet}. + */ + function get( + AddressToUintMap storage map, + address key, + string memory errorMessage + ) internal view returns (uint256) { + return uint256(get(map._inner, bytes32(uint256(uint160(key))), errorMessage)); + } + + /** + * @dev Return the an array containing all the keys + * + * WARNING: This operation will copy the entire storage to memory, which can be quite expensive. This is designed + * to mostly be used by view accessors that are queried without any gas fees. Developers should keep in mind that + * this function has an unbounded cost, and using it as part of a state-changing function may render the function + * uncallable if the map grows to a point where copying to memory consumes too much gas to fit in a block. + */ + function keys(AddressToUintMap storage map) internal view returns (address[] memory) { + bytes32[] memory store = keys(map._inner); + address[] memory result; + + /// @solidity memory-safe-assembly + assembly { + result := store + } + + return result; + } + + // Bytes32ToUintMap + + struct Bytes32ToUintMap { + Bytes32ToBytes32Map _inner; + } + + /** + * @dev Adds a key-value pair to a map, or updates the value for an existing + * key. O(1). + * + * Returns true if the key was added to the map, that is if it was not + * already present. + */ + function set(Bytes32ToUintMap storage map, bytes32 key, uint256 value) internal returns (bool) { + return set(map._inner, key, bytes32(value)); + } + + /** + * @dev Removes a value from a map. O(1). + * + * Returns true if the key was removed from the map, that is if it was present. + */ + function remove(Bytes32ToUintMap storage map, bytes32 key) internal returns (bool) { + return remove(map._inner, key); + } + + /** + * @dev Returns true if the key is in the map. O(1). + */ + function contains(Bytes32ToUintMap storage map, bytes32 key) internal view returns (bool) { + return contains(map._inner, key); + } + + /** + * @dev Returns the number of elements in the map. O(1). + */ + function length(Bytes32ToUintMap storage map) internal view returns (uint256) { + return length(map._inner); + } + + /** + * @dev Returns the element stored at position `index` in the map. O(1). + * Note that there are no guarantees on the ordering of values inside the + * array, and it may change when more values are added or removed. + * + * Requirements: + * + * - `index` must be strictly less than {length}. + */ + function at(Bytes32ToUintMap storage map, uint256 index) internal view returns (bytes32, uint256) { + (bytes32 key, bytes32 value) = at(map._inner, index); + return (key, uint256(value)); + } + + /** + * @dev Tries to returns the value associated with `key`. O(1). + * Does not revert if `key` is not in the map. + */ + function tryGet(Bytes32ToUintMap storage map, bytes32 key) internal view returns (bool, uint256) { + (bool success, bytes32 value) = tryGet(map._inner, key); + return (success, uint256(value)); + } + + /** + * @dev Returns the value associated with `key`. O(1). + * + * Requirements: + * + * - `key` must be in the map. + */ + function get(Bytes32ToUintMap storage map, bytes32 key) internal view returns (uint256) { + return uint256(get(map._inner, key)); + } + + /** + * @dev Same as {get}, with a custom error message when `key` is not in the map. + * + * CAUTION: This function is deprecated because it requires allocating memory for the error + * message unnecessarily. For custom revert reasons use {tryGet}. + */ + function get( + Bytes32ToUintMap storage map, + bytes32 key, + string memory errorMessage + ) internal view returns (uint256) { + return uint256(get(map._inner, key, errorMessage)); + } + + /** + * @dev Return the an array containing all the keys + * + * WARNING: This operation will copy the entire storage to memory, which can be quite expensive. This is designed + * to mostly be used by view accessors that are queried without any gas fees. Developers should keep in mind that + * this function has an unbounded cost, and using it as part of a state-changing function may render the function + * uncallable if the map grows to a point where copying to memory consumes too much gas to fit in a block. + */ + function keys(Bytes32ToUintMap storage map) internal view returns (bytes32[] memory) { + bytes32[] memory store = keys(map._inner); + bytes32[] memory result; + + /// @solidity memory-safe-assembly + assembly { + result := store + } + + return result; + } +} diff --git a/lib/openzeppelin-contracts/contracts/utils/structs/EnumerableSet.sol b/lib/openzeppelin-contracts/contracts/utils/structs/EnumerableSet.sol new file mode 100644 index 0000000..4c701c2 --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/utils/structs/EnumerableSet.sol @@ -0,0 +1,378 @@ +// SPDX-License-Identifier: MIT +// OpenZeppelin Contracts (last updated v4.8.0) (utils/structs/EnumerableSet.sol) +// This file was procedurally generated from scripts/generate/templates/EnumerableSet.js. + +pragma solidity ^0.8.0; + +/** + * @dev Library for managing + * https://en.wikipedia.org/wiki/Set_(abstract_data_type)[sets] of primitive + * types. + * + * Sets have the following properties: + * + * - Elements are added, removed, and checked for existence in constant time + * (O(1)). + * - Elements are enumerated in O(n). No guarantees are made on the ordering. + * + * ``` + * contract Example { + * // Add the library methods + * using EnumerableSet for EnumerableSet.AddressSet; + * + * // Declare a set state variable + * EnumerableSet.AddressSet private mySet; + * } + * ``` + * + * As of v3.3.0, sets of type `bytes32` (`Bytes32Set`), `address` (`AddressSet`) + * and `uint256` (`UintSet`) are supported. + * + * [WARNING] + * ==== + * Trying to delete such a structure from storage will likely result in data corruption, rendering the structure + * unusable. + * See https://github.com/ethereum/solidity/pull/11843[ethereum/solidity#11843] for more info. + * + * In order to clean an EnumerableSet, you can either remove all elements one by one or create a fresh instance using an + * array of EnumerableSet. + * ==== + */ +library EnumerableSet { + // To implement this library for multiple types with as little code + // repetition as possible, we write it in terms of a generic Set type with + // bytes32 values. + // The Set implementation uses private functions, and user-facing + // implementations (such as AddressSet) are just wrappers around the + // underlying Set. + // This means that we can only create new EnumerableSets for types that fit + // in bytes32. + + struct Set { + // Storage of set values + bytes32[] _values; + // Position of the value in the `values` array, plus 1 because index 0 + // means a value is not in the set. + mapping(bytes32 => uint256) _indexes; + } + + /** + * @dev Add a value to a set. O(1). + * + * Returns true if the value was added to the set, that is if it was not + * already present. + */ + function _add(Set storage set, bytes32 value) private returns (bool) { + if (!_contains(set, value)) { + set._values.push(value); + // The value is stored at length-1, but we add 1 to all indexes + // and use 0 as a sentinel value + set._indexes[value] = set._values.length; + return true; + } else { + return false; + } + } + + /** + * @dev Removes a value from a set. O(1). + * + * Returns true if the value was removed from the set, that is if it was + * present. + */ + function _remove(Set storage set, bytes32 value) private returns (bool) { + // We read and store the value's index to prevent multiple reads from the same storage slot + uint256 valueIndex = set._indexes[value]; + + if (valueIndex != 0) { + // Equivalent to contains(set, value) + // To delete an element from the _values array in O(1), we swap the element to delete with the last one in + // the array, and then remove the last element (sometimes called as 'swap and pop'). + // This modifies the order of the array, as noted in {at}. + + uint256 toDeleteIndex = valueIndex - 1; + uint256 lastIndex = set._values.length - 1; + + if (lastIndex != toDeleteIndex) { + bytes32 lastValue = set._values[lastIndex]; + + // Move the last value to the index where the value to delete is + set._values[toDeleteIndex] = lastValue; + // Update the index for the moved value + set._indexes[lastValue] = valueIndex; // Replace lastValue's index to valueIndex + } + + // Delete the slot where the moved value was stored + set._values.pop(); + + // Delete the index for the deleted slot + delete set._indexes[value]; + + return true; + } else { + return false; + } + } + + /** + * @dev Returns true if the value is in the set. O(1). + */ + function _contains(Set storage set, bytes32 value) private view returns (bool) { + return set._indexes[value] != 0; + } + + /** + * @dev Returns the number of values on the set. O(1). + */ + function _length(Set storage set) private view returns (uint256) { + return set._values.length; + } + + /** + * @dev Returns the value stored at position `index` in the set. O(1). + * + * Note that there are no guarantees on the ordering of values inside the + * array, and it may change when more values are added or removed. + * + * Requirements: + * + * - `index` must be strictly less than {length}. + */ + function _at(Set storage set, uint256 index) private view returns (bytes32) { + return set._values[index]; + } + + /** + * @dev Return the entire set in an array + * + * WARNING: This operation will copy the entire storage to memory, which can be quite expensive. This is designed + * to mostly be used by view accessors that are queried without any gas fees. Developers should keep in mind that + * this function has an unbounded cost, and using it as part of a state-changing function may render the function + * uncallable if the set grows to a point where copying to memory consumes too much gas to fit in a block. + */ + function _values(Set storage set) private view returns (bytes32[] memory) { + return set._values; + } + + // Bytes32Set + + struct Bytes32Set { + Set _inner; + } + + /** + * @dev Add a value to a set. O(1). + * + * Returns true if the value was added to the set, that is if it was not + * already present. + */ + function add(Bytes32Set storage set, bytes32 value) internal returns (bool) { + return _add(set._inner, value); + } + + /** + * @dev Removes a value from a set. O(1). + * + * Returns true if the value was removed from the set, that is if it was + * present. + */ + function remove(Bytes32Set storage set, bytes32 value) internal returns (bool) { + return _remove(set._inner, value); + } + + /** + * @dev Returns true if the value is in the set. O(1). + */ + function contains(Bytes32Set storage set, bytes32 value) internal view returns (bool) { + return _contains(set._inner, value); + } + + /** + * @dev Returns the number of values in the set. O(1). + */ + function length(Bytes32Set storage set) internal view returns (uint256) { + return _length(set._inner); + } + + /** + * @dev Returns the value stored at position `index` in the set. O(1). + * + * Note that there are no guarantees on the ordering of values inside the + * array, and it may change when more values are added or removed. + * + * Requirements: + * + * - `index` must be strictly less than {length}. + */ + function at(Bytes32Set storage set, uint256 index) internal view returns (bytes32) { + return _at(set._inner, index); + } + + /** + * @dev Return the entire set in an array + * + * WARNING: This operation will copy the entire storage to memory, which can be quite expensive. This is designed + * to mostly be used by view accessors that are queried without any gas fees. Developers should keep in mind that + * this function has an unbounded cost, and using it as part of a state-changing function may render the function + * uncallable if the set grows to a point where copying to memory consumes too much gas to fit in a block. + */ + function values(Bytes32Set storage set) internal view returns (bytes32[] memory) { + bytes32[] memory store = _values(set._inner); + bytes32[] memory result; + + /// @solidity memory-safe-assembly + assembly { + result := store + } + + return result; + } + + // AddressSet + + struct AddressSet { + Set _inner; + } + + /** + * @dev Add a value to a set. O(1). + * + * Returns true if the value was added to the set, that is if it was not + * already present. + */ + function add(AddressSet storage set, address value) internal returns (bool) { + return _add(set._inner, bytes32(uint256(uint160(value)))); + } + + /** + * @dev Removes a value from a set. O(1). + * + * Returns true if the value was removed from the set, that is if it was + * present. + */ + function remove(AddressSet storage set, address value) internal returns (bool) { + return _remove(set._inner, bytes32(uint256(uint160(value)))); + } + + /** + * @dev Returns true if the value is in the set. O(1). + */ + function contains(AddressSet storage set, address value) internal view returns (bool) { + return _contains(set._inner, bytes32(uint256(uint160(value)))); + } + + /** + * @dev Returns the number of values in the set. O(1). + */ + function length(AddressSet storage set) internal view returns (uint256) { + return _length(set._inner); + } + + /** + * @dev Returns the value stored at position `index` in the set. O(1). + * + * Note that there are no guarantees on the ordering of values inside the + * array, and it may change when more values are added or removed. + * + * Requirements: + * + * - `index` must be strictly less than {length}. + */ + function at(AddressSet storage set, uint256 index) internal view returns (address) { + return address(uint160(uint256(_at(set._inner, index)))); + } + + /** + * @dev Return the entire set in an array + * + * WARNING: This operation will copy the entire storage to memory, which can be quite expensive. This is designed + * to mostly be used by view accessors that are queried without any gas fees. Developers should keep in mind that + * this function has an unbounded cost, and using it as part of a state-changing function may render the function + * uncallable if the set grows to a point where copying to memory consumes too much gas to fit in a block. + */ + function values(AddressSet storage set) internal view returns (address[] memory) { + bytes32[] memory store = _values(set._inner); + address[] memory result; + + /// @solidity memory-safe-assembly + assembly { + result := store + } + + return result; + } + + // UintSet + + struct UintSet { + Set _inner; + } + + /** + * @dev Add a value to a set. O(1). + * + * Returns true if the value was added to the set, that is if it was not + * already present. + */ + function add(UintSet storage set, uint256 value) internal returns (bool) { + return _add(set._inner, bytes32(value)); + } + + /** + * @dev Removes a value from a set. O(1). + * + * Returns true if the value was removed from the set, that is if it was + * present. + */ + function remove(UintSet storage set, uint256 value) internal returns (bool) { + return _remove(set._inner, bytes32(value)); + } + + /** + * @dev Returns true if the value is in the set. O(1). + */ + function contains(UintSet storage set, uint256 value) internal view returns (bool) { + return _contains(set._inner, bytes32(value)); + } + + /** + * @dev Returns the number of values in the set. O(1). + */ + function length(UintSet storage set) internal view returns (uint256) { + return _length(set._inner); + } + + /** + * @dev Returns the value stored at position `index` in the set. O(1). + * + * Note that there are no guarantees on the ordering of values inside the + * array, and it may change when more values are added or removed. + * + * Requirements: + * + * - `index` must be strictly less than {length}. + */ + function at(UintSet storage set, uint256 index) internal view returns (uint256) { + return uint256(_at(set._inner, index)); + } + + /** + * @dev Return the entire set in an array + * + * WARNING: This operation will copy the entire storage to memory, which can be quite expensive. This is designed + * to mostly be used by view accessors that are queried without any gas fees. Developers should keep in mind that + * this function has an unbounded cost, and using it as part of a state-changing function may render the function + * uncallable if the set grows to a point where copying to memory consumes too much gas to fit in a block. + */ + function values(UintSet storage set) internal view returns (uint256[] memory) { + bytes32[] memory store = _values(set._inner); + uint256[] memory result; + + /// @solidity memory-safe-assembly + assembly { + result := store + } + + return result; + } +} diff --git a/lib/openzeppelin-contracts/contracts/vendor/amb/IAMB.sol b/lib/openzeppelin-contracts/contracts/vendor/amb/IAMB.sol new file mode 100644 index 0000000..73a2bd2 --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/vendor/amb/IAMB.sol @@ -0,0 +1,41 @@ +// SPDX-License-Identifier: MIT +// OpenZeppelin Contracts (last updated v4.6.0) (vendor/amb/IAMB.sol) +pragma solidity ^0.8.0; + +interface IAMB { + event UserRequestForAffirmation(bytes32 indexed messageId, bytes encodedData); + event UserRequestForSignature(bytes32 indexed messageId, bytes encodedData); + event AffirmationCompleted( + address indexed sender, + address indexed executor, + bytes32 indexed messageId, + bool status + ); + event RelayedMessage(address indexed sender, address indexed executor, bytes32 indexed messageId, bool status); + + function messageSender() external view returns (address); + + function maxGasPerTx() external view returns (uint256); + + function transactionHash() external view returns (bytes32); + + function messageId() external view returns (bytes32); + + function messageSourceChainId() external view returns (bytes32); + + function messageCallStatus(bytes32 _messageId) external view returns (bool); + + function failedMessageDataHash(bytes32 _messageId) external view returns (bytes32); + + function failedMessageReceiver(bytes32 _messageId) external view returns (address); + + function failedMessageSender(bytes32 _messageId) external view returns (address); + + function requireToPassMessage(address _contract, bytes calldata _data, uint256 _gas) external returns (bytes32); + + function requireToConfirmMessage(address _contract, bytes calldata _data, uint256 _gas) external returns (bytes32); + + function sourceChainId() external view returns (uint256); + + function destinationChainId() external view returns (uint256); +} diff --git a/lib/openzeppelin-contracts/contracts/vendor/arbitrum/IArbSys.sol b/lib/openzeppelin-contracts/contracts/vendor/arbitrum/IArbSys.sol new file mode 100644 index 0000000..9b79d5c --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/vendor/arbitrum/IArbSys.sol @@ -0,0 +1,134 @@ +// Copyright 2021-2022, Offchain Labs, Inc. +// For license information, see https://github.com/OffchainLabs/nitro/blob/master/LICENSE +// SPDX-License-Identifier: BUSL-1.1 +// OpenZeppelin Contracts (last updated v4.8.0) (vendor/arbitrum/IArbSys.sol) + +pragma solidity >=0.4.21 <0.9.0; + +/** + * @title System level functionality + * @notice For use by contracts to interact with core L2-specific functionality. + * Precompiled contract that exists in every Arbitrum chain at address(100), 0x0000000000000000000000000000000000000064. + */ +interface IArbSys { + /** + * @notice Get Arbitrum block number (distinct from L1 block number; Arbitrum genesis block has block number 0) + * @return block number as int + */ + function arbBlockNumber() external view returns (uint256); + + /** + * @notice Get Arbitrum block hash (reverts unless currentBlockNum-256 <= arbBlockNum < currentBlockNum) + * @return block hash + */ + function arbBlockHash(uint256 arbBlockNum) external view returns (bytes32); + + /** + * @notice Gets the rollup's unique chain identifier + * @return Chain identifier as int + */ + function arbChainID() external view returns (uint256); + + /** + * @notice Get internal version number identifying an ArbOS build + * @return version number as int + */ + function arbOSVersion() external view returns (uint256); + + /** + * @notice Returns 0 since Nitro has no concept of storage gas + * @return uint 0 + */ + function getStorageGasAvailable() external view returns (uint256); + + /** + * @notice (deprecated) check if current call is top level (meaning it was triggered by an EoA or a L1 contract) + * @dev this call has been deprecated and may be removed in a future release + * @return true if current execution frame is not a call by another L2 contract + */ + function isTopLevelCall() external view returns (bool); + + /** + * @notice map L1 sender contract address to its L2 alias + * @param sender sender address + * @param unused argument no longer used + * @return aliased sender address + */ + function mapL1SenderContractAddressToL2Alias(address sender, address unused) external pure returns (address); + + /** + * @notice check if the caller (of this caller of this) is an aliased L1 contract address + * @return true iff the caller's address is an alias for an L1 contract address + */ + function wasMyCallersAddressAliased() external view returns (bool); + + /** + * @notice return the address of the caller (of this caller of this), without applying L1 contract address aliasing + * @return address of the caller's caller, without applying L1 contract address aliasing + */ + function myCallersAddressWithoutAliasing() external view returns (address); + + /** + * @notice Send given amount of Eth to dest from sender. + * This is a convenience function, which is equivalent to calling sendTxToL1 with empty data. + * @param destination recipient address on L1 + * @return unique identifier for this L2-to-L1 transaction. + */ + function withdrawEth(address destination) external payable returns (uint256); + + /** + * @notice Send a transaction to L1 + * @dev it is not possible to execute on the L1 any L2-to-L1 transaction which contains data + * to a contract address without any code (as enforced by the Bridge contract). + * @param destination recipient address on L1 + * @param data (optional) calldata for L1 contract call + * @return a unique identifier for this L2-to-L1 transaction. + */ + function sendTxToL1(address destination, bytes calldata data) external payable returns (uint256); + + /** + * @notice Get send Merkle tree state + * @return size number of sends in the history + * @return root root hash of the send history + * @return partials hashes of partial subtrees in the send history tree + */ + function sendMerkleTreeState() external view returns (uint256 size, bytes32 root, bytes32[] memory partials); + + /** + * @notice creates a send txn from L2 to L1 + * @param position = (level << 192) + leaf = (0 << 192) + leaf = leaf + */ + event L2ToL1Tx( + address caller, + address indexed destination, + uint256 indexed hash, + uint256 indexed position, + uint256 arbBlockNum, + uint256 ethBlockNum, + uint256 timestamp, + uint256 callvalue, + bytes data + ); + + /// @dev DEPRECATED in favour of the new L2ToL1Tx event above after the nitro upgrade + event L2ToL1Transaction( + address caller, + address indexed destination, + uint256 indexed uniqueId, + uint256 indexed batchNumber, + uint256 indexInBatch, + uint256 arbBlockNum, + uint256 ethBlockNum, + uint256 timestamp, + uint256 callvalue, + bytes data + ); + + /** + * @notice logs a merkle branch for proof synthesis + * @param reserved an index meant only to align the 4th index with L2ToL1Transaction's 4th event + * @param hash the merkle hash + * @param position = (level << 192) + leaf + */ + event SendMerkleUpdate(uint256 indexed reserved, bytes32 indexed hash, uint256 indexed position); +} diff --git a/lib/openzeppelin-contracts/contracts/vendor/arbitrum/IBridge.sol b/lib/openzeppelin-contracts/contracts/vendor/arbitrum/IBridge.sol new file mode 100644 index 0000000..e71bedc --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/vendor/arbitrum/IBridge.sol @@ -0,0 +1,102 @@ +// Copyright 2021-2022, Offchain Labs, Inc. +// For license information, see https://github.com/nitro/blob/master/LICENSE +// SPDX-License-Identifier: BUSL-1.1 +// OpenZeppelin Contracts (last updated v4.8.0) (vendor/arbitrum/IBridge.sol) + +// solhint-disable-next-line compiler-version +pragma solidity >=0.6.9 <0.9.0; + +interface IBridge { + event MessageDelivered( + uint256 indexed messageIndex, + bytes32 indexed beforeInboxAcc, + address inbox, + uint8 kind, + address sender, + bytes32 messageDataHash, + uint256 baseFeeL1, + uint64 timestamp + ); + + event BridgeCallTriggered(address indexed outbox, address indexed to, uint256 value, bytes data); + + event InboxToggle(address indexed inbox, bool enabled); + + event OutboxToggle(address indexed outbox, bool enabled); + + event SequencerInboxUpdated(address newSequencerInbox); + + function allowedDelayedInboxList(uint256) external returns (address); + + function allowedOutboxList(uint256) external returns (address); + + /// @dev Accumulator for delayed inbox messages; tail represents hash of the current state; each element represents the inclusion of a new message. + function delayedInboxAccs(uint256) external view returns (bytes32); + + /// @dev Accumulator for sequencer inbox messages; tail represents hash of the current state; each element represents the inclusion of a new message. + function sequencerInboxAccs(uint256) external view returns (bytes32); + + // OpenZeppelin: changed return type from IOwnable + function rollup() external view returns (address); + + function sequencerInbox() external view returns (address); + + function activeOutbox() external view returns (address); + + function allowedDelayedInboxes(address inbox) external view returns (bool); + + function allowedOutboxes(address outbox) external view returns (bool); + + function sequencerReportedSubMessageCount() external view returns (uint256); + + /** + * @dev Enqueue a message in the delayed inbox accumulator. + * These messages are later sequenced in the SequencerInbox, either + * by the sequencer as part of a normal batch, or by force inclusion. + */ + function enqueueDelayedMessage( + uint8 kind, + address sender, + bytes32 messageDataHash + ) external payable returns (uint256); + + function executeCall( + address to, + uint256 value, + bytes calldata data + ) external returns (bool success, bytes memory returnData); + + function delayedMessageCount() external view returns (uint256); + + function sequencerMessageCount() external view returns (uint256); + + // ---------- onlySequencerInbox functions ---------- + + function enqueueSequencerMessage( + bytes32 dataHash, + uint256 afterDelayedMessagesRead, + uint256 prevMessageCount, + uint256 newMessageCount + ) external returns (uint256 seqMessageIndex, bytes32 beforeAcc, bytes32 delayedAcc, bytes32 acc); + + /** + * @dev Allows the sequencer inbox to submit a delayed message of the batchPostingReport type + * This is done through a separate function entrypoint instead of allowing the sequencer inbox + * to call `enqueueDelayedMessage` to avoid the gas overhead of an extra SLOAD in either + * every delayed inbox or every sequencer inbox call. + */ + function submitBatchSpendingReport(address batchPoster, bytes32 dataHash) external returns (uint256 msgNum); + + // ---------- onlyRollupOrOwner functions ---------- + + function setSequencerInbox(address _sequencerInbox) external; + + function setDelayedInbox(address inbox, bool enabled) external; + + function setOutbox(address inbox, bool enabled) external; + + // ---------- initializer ---------- + + // OpenZeppelin: changed rollup_ type from IOwnable + function initialize(address rollup_) external; +} diff --git a/lib/openzeppelin-contracts/contracts/vendor/arbitrum/IDelayedMessageProvider.sol b/lib/openzeppelin-contracts/contracts/vendor/arbitrum/IDelayedMessageProvider.sol new file mode 100644 index 0000000..914c25f --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/vendor/arbitrum/IDelayedMessageProvider.sol @@ -0,0 +1,16 @@ +// Copyright 2021-2022, Offchain Labs, Inc. +// For license information, see https://github.com/nitro/blob/master/LICENSE +// SPDX-License-Identifier: BUSL-1.1 +// OpenZeppelin Contracts (last updated v4.8.0) (vendor/arbitrum/IDelayedMessageProvider.sol) + +// solhint-disable-next-line compiler-version +pragma solidity >=0.6.9 <0.9.0; + +interface IDelayedMessageProvider { + /// @dev event emitted when a inbox message is added to the Bridge's delayed accumulator + event InboxMessageDelivered(uint256 indexed messageNum, bytes data); + + /// @dev event emitted when a inbox message is added to the Bridge's delayed accumulator + /// same as InboxMessageDelivered but the batch data is available in tx.input + event InboxMessageDeliveredFromOrigin(uint256 indexed messageNum); +} diff --git a/lib/openzeppelin-contracts/contracts/vendor/arbitrum/IInbox.sol b/lib/openzeppelin-contracts/contracts/vendor/arbitrum/IInbox.sol new file mode 100644 index 0000000..a8b6751 --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/vendor/arbitrum/IInbox.sol @@ -0,0 +1,152 @@ +// Copyright 2021-2022, Offchain Labs, Inc. +// For license information, see https://github.com/nitro/blob/master/LICENSE +// SPDX-License-Identifier: BUSL-1.1 +// OpenZeppelin Contracts (last updated v4.8.0) (vendor/arbitrum/IInbox.sol) + +// solhint-disable-next-line compiler-version +pragma solidity >=0.6.9 <0.9.0; + +import "./IBridge.sol"; +import "./IDelayedMessageProvider.sol"; + +interface IInbox is IDelayedMessageProvider { + function bridge() external view returns (IBridge); + + // OpenZeppelin: changed return type from ISequencerInbox + function sequencerInbox() external view returns (address); + + /** + * @notice Send a generic L2 message to the chain + * @dev This method is an optimization to avoid having to emit the entirety of the messageData in a log. Instead validators are expected to be able to parse the data from the transaction's input + * @param messageData Data of the message being sent + */ + function sendL2MessageFromOrigin(bytes calldata messageData) external returns (uint256); + + /** + * @notice Send a generic L2 message to the chain + * @dev This method can be used to send any type of message that doesn't require L1 validation + * @param messageData Data of the message being sent + */ + function sendL2Message(bytes calldata messageData) external returns (uint256); + + function sendL1FundedUnsignedTransaction( + uint256 gasLimit, + uint256 maxFeePerGas, + uint256 nonce, + address to, + bytes calldata data + ) external payable returns (uint256); + + function sendL1FundedContractTransaction( + uint256 gasLimit, + uint256 maxFeePerGas, + address to, + bytes calldata data + ) external payable returns (uint256); + + function sendUnsignedTransaction( + uint256 gasLimit, + uint256 maxFeePerGas, + uint256 nonce, + address to, + uint256 value, + bytes calldata data + ) external returns (uint256); + + function sendContractTransaction( + uint256 gasLimit, + uint256 maxFeePerGas, + address to, + uint256 value, + bytes calldata data + ) external returns (uint256); + + /** + * @notice Get the L1 fee for submitting a retryable + * @dev This fee can be paid by funds already in the L2 aliased address or by the current message value + * @dev This formula may change in the future, to future proof your code query this method instead of inlining!! + * @param dataLength The length of the retryable's calldata, in bytes + * @param baseFee The block basefee when the retryable is included in the chain, if 0 current block.basefee will be used + */ + function calculateRetryableSubmissionFee(uint256 dataLength, uint256 baseFee) external view returns (uint256); + + /** + * @notice Deposit eth from L1 to L2 to address of the sender if sender is an EOA, and to its aliased address if the sender is a contract + * @dev This does not trigger the fallback function when receiving in the L2 side. + * Look into retryable tickets if you are interested in this functionality. + * @dev This function should not be called inside contract constructors + */ + function depositEth() external payable returns (uint256); + + /** + * @notice Put a message in the L2 inbox that can be reexecuted for some fixed amount of time if it reverts + * @dev all msg.value will deposited to callValueRefundAddress on L2 + * @dev Gas limit and maxFeePerGas should not be set to 1 as that is used to trigger the RetryableData error + * @param to destination L2 contract address + * @param l2CallValue call value for retryable L2 message + * @param maxSubmissionCost Max gas deducted from user's L2 balance to cover base submission fee + * @param excessFeeRefundAddress gasLimit x maxFeePerGas - execution cost gets credited here on L2 balance + * @param callValueRefundAddress l2Callvalue gets credited here on L2 if retryable txn times out or gets cancelled + * @param gasLimit Max gas deducted from user's L2 balance to cover L2 execution. Should not be set to 1 (magic value used to trigger the RetryableData error) + * @param maxFeePerGas price bid for L2 execution. Should not be set to 1 (magic value used to trigger the RetryableData error) + * @param data ABI encoded data of L2 message + * @return unique message number of the retryable transaction + */ + function createRetryableTicket( + address to, + uint256 l2CallValue, + uint256 maxSubmissionCost, + address excessFeeRefundAddress, + address callValueRefundAddress, + uint256 gasLimit, + uint256 maxFeePerGas, + bytes calldata data + ) external payable returns (uint256); + + /** + * @notice Put a message in the L2 inbox that can be reexecuted for some fixed amount of time if it reverts + * @dev Same as createRetryableTicket, but does not guarantee that submission will succeed by requiring the needed funds + * come from the deposit alone, rather than falling back on the user's L2 balance + * @dev Advanced usage only (does not rewrite aliases for excessFeeRefundAddress and callValueRefundAddress). + * createRetryableTicket method is the recommended standard. + * @dev Gas limit and maxFeePerGas should not be set to 1 as that is used to trigger the RetryableData error + * @param to destination L2 contract address + * @param l2CallValue call value for retryable L2 message + * @param maxSubmissionCost Max gas deducted from user's L2 balance to cover base submission fee + * @param excessFeeRefundAddress gasLimit x maxFeePerGas - execution cost gets credited here on L2 balance + * @param callValueRefundAddress l2Callvalue gets credited here on L2 if retryable txn times out or gets cancelled + * @param gasLimit Max gas deducted from user's L2 balance to cover L2 execution. Should not be set to 1 (magic value used to trigger the RetryableData error) + * @param maxFeePerGas price bid for L2 execution. Should not be set to 1 (magic value used to trigger the RetryableData error) + * @param data ABI encoded data of L2 message + * @return unique message number of the retryable transaction + */ + function unsafeCreateRetryableTicket( + address to, + uint256 l2CallValue, + uint256 maxSubmissionCost, + address excessFeeRefundAddress, + address callValueRefundAddress, + uint256 gasLimit, + uint256 maxFeePerGas, + bytes calldata data + ) external payable returns (uint256); + + // ---------- onlyRollupOrOwner functions ---------- + + /// @notice pauses all inbox functionality + function pause() external; + + /// @notice unpauses all inbox functionality + function unpause() external; + + // ---------- initializer ---------- + + /** + * @dev function to be called one time during the inbox upgrade process + * this is used to fix the storage slots + */ + function postUpgradeInit(IBridge _bridge) external; + + // OpenZeppelin: changed _sequencerInbox type from ISequencerInbox + function initialize(IBridge _bridge, address _sequencerInbox) external; +} diff --git a/lib/openzeppelin-contracts/contracts/vendor/arbitrum/IOutbox.sol b/lib/openzeppelin-contracts/contracts/vendor/arbitrum/IOutbox.sol new file mode 100644 index 0000000..22fa58f --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/vendor/arbitrum/IOutbox.sol @@ -0,0 +1,117 @@ +// Copyright 2021-2022, Offchain Labs, Inc. +// For license information, see https://github.com/nitro/blob/master/LICENSE +// SPDX-License-Identifier: BUSL-1.1 +// OpenZeppelin Contracts (last updated v4.8.0) (vendor/arbitrum/IOutbox.sol) + +// solhint-disable-next-line compiler-version +pragma solidity >=0.6.9 <0.9.0; + +import "./IBridge.sol"; + +interface IOutbox { + event SendRootUpdated(bytes32 indexed blockHash, bytes32 indexed outputRoot); + event OutBoxTransactionExecuted( + address indexed to, + address indexed l2Sender, + uint256 indexed zero, + uint256 transactionIndex + ); + + function rollup() external view returns (address); // the rollup contract + + function bridge() external view returns (IBridge); // the bridge contract + + function spent(uint256) external view returns (bytes32); // packed spent bitmap + + function roots(bytes32) external view returns (bytes32); // maps root hashes => L2 block hash + + // solhint-disable-next-line func-name-mixedcase + function OUTBOX_VERSION() external view returns (uint128); // the outbox version + + function updateSendRoot(bytes32 sendRoot, bytes32 l2BlockHash) external; + + /// @notice When l2ToL1Sender returns a nonzero address, the message was originated by an L2 account + /// When the return value is zero, that means this is a system message + /// @dev the l2ToL1Sender behaves as the tx.origin, the msg.sender should be validated to protect against reentrancies + function l2ToL1Sender() external view returns (address); + + /// @return l2Block return L2 block when the L2 tx was initiated or 0 if no L2 to L1 transaction is active + function l2ToL1Block() external view returns (uint256); + + /// @return l1Block return L1 block when the L2 tx was initiated or 0 if no L2 to L1 transaction is active + function l2ToL1EthBlock() external view returns (uint256); + + /// @return timestamp return L2 timestamp when the L2 tx was initiated or 0 if no L2 to L1 transaction is active + function l2ToL1Timestamp() external view returns (uint256); + + /// @return outputId returns the unique output identifier of the L2 to L1 tx or 0 if no L2 to L1 transaction is active + function l2ToL1OutputId() external view returns (bytes32); + + /** + * @notice Executes a messages in an Outbox entry. + * @dev Reverts if dispute period hasn't expired, since the outbox entry + * is only created once the rollup confirms the respective assertion. + * @dev it is not possible to execute any L2-to-L1 transaction which contains data + * to a contract address without any code (as enforced by the Bridge contract). + * @param proof Merkle proof of message inclusion in send root + * @param index Merkle path to message + * @param l2Sender sender if original message (i.e., caller of ArbSys.sendTxToL1) + * @param to destination address for L1 contract call + * @param l2Block l2 block number at which sendTxToL1 call was made + * @param l1Block l1 block number at which sendTxToL1 call was made + * @param l2Timestamp l2 Timestamp at which sendTxToL1 call was made + * @param value wei in L1 message + * @param data abi-encoded L1 message data + */ + function executeTransaction( + bytes32[] calldata proof, + uint256 index, + address l2Sender, + address to, + uint256 l2Block, + uint256 l1Block, + uint256 l2Timestamp, + uint256 value, + bytes calldata data + ) external; + + /** + * @dev function used to simulate the result of a particular function call from the outbox + * it is useful for things such as gas estimates. This function includes all costs except for + * proof validation (which can be considered offchain as a somewhat of a fixed cost - it's + * not really a fixed cost, but can be treated as so with a fixed overhead for gas estimation). + * We can't include the cost of proof validation since this is intended to be used to simulate txs + * that are included in yet-to-be confirmed merkle roots. The simulation entrypoint could instead pretend + * to confirm a pending merkle root, but that would be less practical for integrating with tooling. + * It is only possible to trigger it when the msg sender is address zero, which should be impossible + * unless under simulation in an eth_call or eth_estimateGas + */ + function executeTransactionSimulation( + uint256 index, + address l2Sender, + address to, + uint256 l2Block, + uint256 l1Block, + uint256 l2Timestamp, + uint256 value, + bytes calldata data + ) external; + + /** + * @param index Merkle path to message + * @return true if the message has been spent + */ + function isSpent(uint256 index) external view returns (bool); + + function calculateItemHash( + address l2Sender, + address to, + uint256 l2Block, + uint256 l1Block, + uint256 l2Timestamp, + uint256 value, + bytes calldata data + ) external pure returns (bytes32); + + function calculateMerkleRoot(bytes32[] memory proof, uint256 path, bytes32 item) external pure returns (bytes32); +} diff --git a/lib/openzeppelin-contracts/contracts/vendor/compound/ICompoundTimelock.sol b/lib/openzeppelin-contracts/contracts/vendor/compound/ICompoundTimelock.sol new file mode 100644 index 0000000..fb33a68 --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/vendor/compound/ICompoundTimelock.sol @@ -0,0 +1,86 @@ +// SPDX-License-Identifier: MIT +// OpenZeppelin Contracts (last updated v4.6.0) (vendor/compound/ICompoundTimelock.sol) + +pragma solidity ^0.8.0; + +/** + * https://github.com/compound-finance/compound-protocol/blob/master/contracts/Timelock.sol[Compound's timelock] interface + */ +interface ICompoundTimelock { + event NewAdmin(address indexed newAdmin); + event NewPendingAdmin(address indexed newPendingAdmin); + event NewDelay(uint256 indexed newDelay); + event CancelTransaction( + bytes32 indexed txHash, + address indexed target, + uint256 value, + string signature, + bytes data, + uint256 eta + ); + event ExecuteTransaction( + bytes32 indexed txHash, + address indexed target, + uint256 value, + string signature, + bytes data, + uint256 eta + ); + event QueueTransaction( + bytes32 indexed txHash, + address indexed target, + uint256 value, + string signature, + bytes data, + uint256 eta + ); + + receive() external payable; + + // solhint-disable-next-line func-name-mixedcase + function GRACE_PERIOD() external view returns (uint256); + + // solhint-disable-next-line func-name-mixedcase + function MINIMUM_DELAY() external view returns (uint256); + + // solhint-disable-next-line func-name-mixedcase + function MAXIMUM_DELAY() external view returns (uint256); + + function admin() external view returns (address); + + function pendingAdmin() external view returns (address); + + function delay() external view returns (uint256); + + function queuedTransactions(bytes32) external view returns (bool); + + function setDelay(uint256) external; + + function acceptAdmin() external; + + function setPendingAdmin(address) external; + + function queueTransaction( + address target, + uint256 value, + string memory signature, + bytes memory data, + uint256 eta + ) external returns (bytes32); + + function cancelTransaction( + address target, + uint256 value, + string memory signature, + bytes memory data, + uint256 eta + ) external; + + function executeTransaction( + address target, + uint256 value, + string memory signature, + bytes memory data, + uint256 eta + ) external payable returns (bytes memory); +} diff --git a/lib/openzeppelin-contracts/contracts/vendor/compound/LICENSE b/lib/openzeppelin-contracts/contracts/vendor/compound/LICENSE new file mode 100644 index 0000000..7da2324 --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/vendor/compound/LICENSE @@ -0,0 +1,11 @@ +Copyright 2020 Compound Labs, Inc. + +Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met: + +1. Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer. + +2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution. + +3. Neither the name of the copyright holder nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission. + +THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. \ No newline at end of file diff --git a/lib/openzeppelin-contracts/contracts/vendor/optimism/ICrossDomainMessenger.sol b/lib/openzeppelin-contracts/contracts/vendor/optimism/ICrossDomainMessenger.sol new file mode 100644 index 0000000..cc01a48 --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/vendor/optimism/ICrossDomainMessenger.sol @@ -0,0 +1,34 @@ +// SPDX-License-Identifier: MIT +// OpenZeppelin Contracts (last updated v4.6.0) (vendor/optimism/ICrossDomainMessenger.sol) +pragma solidity >0.5.0 <0.9.0; + +/** + * @title ICrossDomainMessenger + */ +interface ICrossDomainMessenger { + /********** + * Events * + **********/ + + event SentMessage(address indexed target, address sender, bytes message, uint256 messageNonce, uint256 gasLimit); + event RelayedMessage(bytes32 indexed msgHash); + event FailedRelayedMessage(bytes32 indexed msgHash); + + /************* + * Variables * + *************/ + + function xDomainMessageSender() external view returns (address); + + /******************** + * Public Functions * + ********************/ + + /** + * Sends a cross domain message to the target messenger. + * @param _target Target contract address. + * @param _message Message to send to the target. + * @param _gasLimit Gas limit for the provided message. + */ + function sendMessage(address _target, bytes calldata _message, uint32 _gasLimit) external; +} diff --git a/lib/openzeppelin-contracts/contracts/vendor/optimism/LICENSE b/lib/openzeppelin-contracts/contracts/vendor/optimism/LICENSE new file mode 100644 index 0000000..6a7da52 --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/vendor/optimism/LICENSE @@ -0,0 +1,22 @@ +(The MIT License) + +Copyright 2020-2021 Optimism + +Permission is hereby granted, free of charge, to any person obtaining +a copy of this software and associated documentation files (the +"Software"), to deal in the Software without restriction, including +without limitation the rights to use, copy, modify, merge, publish, +distribute, sublicense, and/or sell copies of the Software, and to +permit persons to whom the Software is furnished to do so, subject to +the following conditions: + +The above copyright notice and this permission notice shall be +included in all copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, +EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF +MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. +IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY +CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, +TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE +SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. diff --git a/lib/openzeppelin-contracts/contracts/vendor/polygon/IFxMessageProcessor.sol b/lib/openzeppelin-contracts/contracts/vendor/polygon/IFxMessageProcessor.sol new file mode 100644 index 0000000..be73e6f --- /dev/null +++ b/lib/openzeppelin-contracts/contracts/vendor/polygon/IFxMessageProcessor.sol @@ -0,0 +1,7 @@ +// SPDX-License-Identifier: MIT +// OpenZeppelin Contracts (last updated v4.6.0) (vendor/polygon/IFxMessageProcessor.sol) +pragma solidity ^0.8.0; + +interface IFxMessageProcessor { + function processMessageFromRoot(uint256 stateId, address rootMessageSender, bytes calldata data) external; +} diff --git a/lib/openzeppelin-contracts/docs/README.md b/lib/openzeppelin-contracts/docs/README.md new file mode 100644 index 0000000..ca39e51 --- /dev/null +++ b/lib/openzeppelin-contracts/docs/README.md @@ -0,0 +1,16 @@ +Documentation is hosted at https://docs.openzeppelin.com/contracts. + +All of the content for the site is in this repository. The guides are in the +[docs](/docs) directory, and the API Reference is extracted from comments in +the source code. If you want to help improve the content, this is the +repository you should be contributing to. + +[`solidity-docgen`](https://github.com/OpenZeppelin/solidity-docgen) is the +program that extracts the API Reference from source code. + +The [`docs.openzeppelin.com`](https://github.com/OpenZeppelin/docs.openzeppelin.com) +repository hosts the configuration for the entire site, which includes +documentation for all of the OpenZeppelin projects. + +To run the docs locally you should run `npm run docs:watch` on this +repository. diff --git a/lib/openzeppelin-contracts/docs/antora.yml b/lib/openzeppelin-contracts/docs/antora.yml new file mode 100644 index 0000000..513a997 --- /dev/null +++ b/lib/openzeppelin-contracts/docs/antora.yml @@ -0,0 +1,6 @@ +name: contracts +title: Contracts +version: 4.x +nav: + - modules/ROOT/nav.adoc + - modules/api/nav.adoc diff --git a/lib/openzeppelin-contracts/docs/config.js b/lib/openzeppelin-contracts/docs/config.js new file mode 100644 index 0000000..f0af663 --- /dev/null +++ b/lib/openzeppelin-contracts/docs/config.js @@ -0,0 +1,21 @@ +const path = require('path'); +const fs = require('fs'); + +/** @type import('solidity-docgen/dist/config').UserConfig */ +module.exports = { + outputDir: 'docs/modules/api/pages', + templates: 'docs/templates', + exclude: ['mocks'], + pageExtension: '.adoc', + pages: (_, file, config) => { + // For each contract file, find the closest README.adoc and return its location as the output page path. + const sourcesDir = path.resolve(config.root, config.sourcesDir); + let dir = path.resolve(config.root, file.absolutePath); + while (dir.startsWith(sourcesDir)) { + dir = path.dirname(dir); + if (fs.existsSync(path.join(dir, 'README.adoc'))) { + return path.relative(sourcesDir, dir) + config.pageExtension; + } + } + }, +}; diff --git a/lib/openzeppelin-contracts/docs/modules/ROOT/images/tally-admin.png b/lib/openzeppelin-contracts/docs/modules/ROOT/images/tally-admin.png new file mode 100644 index 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zE9^(du5STyqO+2F3SdxYjK4^f_g~AhAO4@s|H?S5-ao9sePzxJVgw3xKp=T(6>!PB H55fNfLFfw_ literal 0 HcmV?d00001 diff --git a/lib/openzeppelin-contracts/docs/modules/ROOT/nav.adoc b/lib/openzeppelin-contracts/docs/modules/ROOT/nav.adoc new file mode 100644 index 0000000..6604c2d --- /dev/null +++ b/lib/openzeppelin-contracts/docs/modules/ROOT/nav.adoc @@ -0,0 +1,21 @@ +* xref:index.adoc[Overview] +* xref:wizard.adoc[Wizard] +* xref:extending-contracts.adoc[Extending Contracts] +* xref:upgradeable.adoc[Using with Upgrades] + +* xref:releases-stability.adoc[Releases & Stability] + +* xref:access-control.adoc[Access Control] + +* xref:tokens.adoc[Tokens] +** xref:erc20.adoc[ERC20] +*** xref:erc20-supply.adoc[Creating Supply] +** xref:erc721.adoc[ERC721] +** xref:erc777.adoc[ERC777] +** xref:erc1155.adoc[ERC1155] + +* xref:governance.adoc[Governance] + +* xref:crosschain.adoc[Crosschain] + +* xref:utilities.adoc[Utilities] diff --git a/lib/openzeppelin-contracts/docs/modules/ROOT/pages/access-control.adoc b/lib/openzeppelin-contracts/docs/modules/ROOT/pages/access-control.adoc new file mode 100644 index 0000000..f3ddb62 --- /dev/null +++ b/lib/openzeppelin-contracts/docs/modules/ROOT/pages/access-control.adoc @@ -0,0 +1,217 @@ += Access Control + +Access control—that is, "who is allowed to do this thing"—is incredibly important in the world of smart contracts. The access control of your contract may govern who can mint tokens, vote on proposals, freeze transfers, and many other things. It is therefore *critical* to understand how you implement it, lest someone else https://blog.openzeppelin.com/on-the-parity-wallet-multisig-hack-405a8c12e8f7[steals your whole system]. + +[[ownership-and-ownable]] +== Ownership and `Ownable` + +The most common and basic form of access control is the concept of _ownership_: there's an account that is the `owner` of a contract and can do administrative tasks on it. This approach is perfectly reasonable for contracts that have a single administrative user. + +OpenZeppelin Contracts provides xref:api:access.adoc#Ownable[`Ownable`] for implementing ownership in your contracts. + +[source,solidity] +---- +// contracts/MyContract.sol +// SPDX-License-Identifier: MIT +pragma solidity ^0.8.0; + +import "@openzeppelin/contracts/access/Ownable.sol"; + +contract MyContract is Ownable { + function normalThing() public { + // anyone can call this normalThing() + } + + function specialThing() public onlyOwner { + // only the owner can call specialThing()! + } +} +---- + +By default, the xref:api:access.adoc#Ownable-owner--[`owner`] of an `Ownable` contract is the account that deployed it, which is usually exactly what you want. + +Ownable also lets you: + +* xref:api:access.adoc#Ownable-transferOwnership-address-[`transferOwnership`] from the owner account to a new one, and +* xref:api:access.adoc#Ownable-renounceOwnership--[`renounceOwnership`] for the owner to relinquish this administrative privilege, a common pattern after an initial stage with centralized administration is over. + +WARNING: Removing the owner altogether will mean that administrative tasks that are protected by `onlyOwner` will no longer be callable! + +Note that *a contract can also be the owner of another one*! This opens the door to using, for example, a https://gnosis-safe.io[Gnosis Safe], an https://aragon.org[Aragon DAO], or a totally custom contract that _you_ create. + +In this way, you can use _composability_ to add additional layers of access control complexity to your contracts. Instead of having a single regular Ethereum account (Externally Owned Account, or EOA) as the owner, you could use a 2-of-3 multisig run by your project leads, for example. Prominent projects in the space, such as https://makerdao.com[MakerDAO], use systems similar to this one. + +[[role-based-access-control]] +== Role-Based Access Control + +While the simplicity of _ownership_ can be useful for simple systems or quick prototyping, different levels of authorization are often needed. You may want for an account to have permission to ban users from a system, but not create new tokens. https://en.wikipedia.org/wiki/Role-based_access_control[_Role-Based Access Control (RBAC)_] offers flexibility in this regard. + +In essence, we will be defining multiple _roles_, each allowed to perform different sets of actions. An account may have, for example, 'moderator', 'minter' or 'admin' roles, which you will then check for instead of simply using `onlyOwner`. This check can be enforced through the `onlyRole` modifier. Separately, you will be able to define rules for how accounts can be granted a role, have it revoked, and more. + +Most software uses access control systems that are role-based: some users are regular users, some may be supervisors or managers, and a few will often have administrative privileges. + +[[using-access-control]] +=== Using `AccessControl` + +OpenZeppelin Contracts provides xref:api:access.adoc#AccessControl[`AccessControl`] for implementing role-based access control. Its usage is straightforward: for each role that you want to define, +you will create a new _role identifier_ that is used to grant, revoke, and check if an account has that role. + +Here's a simple example of using `AccessControl` in an xref:tokens.adoc#ERC20[`ERC20` token] to define a 'minter' role, which allows accounts that have it create new tokens: + +[source,solidity] +---- +// contracts/MyToken.sol +// SPDX-License-Identifier: MIT +pragma solidity ^0.8.0; + +import "@openzeppelin/contracts/access/AccessControl.sol"; +import "@openzeppelin/contracts/token/ERC20/ERC20.sol"; + +contract MyToken is ERC20, AccessControl { + // Create a new role identifier for the minter role + bytes32 public constant MINTER_ROLE = keccak256("MINTER_ROLE"); + + constructor(address minter) ERC20("MyToken", "TKN") { + // Grant the minter role to a specified account + _grantRole(MINTER_ROLE, minter); + } + + function mint(address to, uint256 amount) public { + // Check that the calling account has the minter role + require(hasRole(MINTER_ROLE, msg.sender), "Caller is not a minter"); + _mint(to, amount); + } +} +---- + +NOTE: Make sure you fully understand how xref:api:access.adoc#AccessControl[`AccessControl`] works before using it on your system, or copy-pasting the examples from this guide. + +While clear and explicit, this isn't anything we wouldn't have been able to achieve with `Ownable`. Indeed, where `AccessControl` shines is in scenarios where granular permissions are required, which can be implemented by defining _multiple_ roles. + +Let's augment our ERC20 token example by also defining a 'burner' role, which lets accounts destroy tokens, and by using the `onlyRole` modifier: + +[source,solidity] +---- +// contracts/MyToken.sol +// SPDX-License-Identifier: MIT +pragma solidity ^0.8.0; + +import "@openzeppelin/contracts/access/AccessControl.sol"; +import "@openzeppelin/contracts/token/ERC20/ERC20.sol"; + +contract MyToken is ERC20, AccessControl { + bytes32 public constant MINTER_ROLE = keccak256("MINTER_ROLE"); + bytes32 public constant BURNER_ROLE = keccak256("BURNER_ROLE"); + + constructor(address minter, address burner) ERC20("MyToken", "TKN") { + _grantRole(MINTER_ROLE, minter); + _grantRole(BURNER_ROLE, burner); + } + + function mint(address to, uint256 amount) public onlyRole(MINTER_ROLE) { + _mint(to, amount); + } + + function burn(address from, uint256 amount) public onlyRole(BURNER_ROLE) { + _burn(from, amount); + } +} +---- + +So clean! By splitting concerns this way, more granular levels of permission may be implemented than were possible with the simpler _ownership_ approach to access control. Limiting what each component of a system is able to do is known as the https://en.wikipedia.org/wiki/Principle_of_least_privilege[principle of least privilege], and is a good security practice. Note that each account may still have more than one role, if so desired. + +[[granting-and-revoking]] +=== Granting and Revoking Roles + +The ERC20 token example above uses `_grantRole`, an `internal` function that is useful when programmatically assigning roles (such as during construction). But what if we later want to grant the 'minter' role to additional accounts? + +By default, **accounts with a role cannot grant it or revoke it from other accounts**: all having a role does is making the `hasRole` check pass. To grant and revoke roles dynamically, you will need help from the _role's admin_. + +Every role has an associated admin role, which grants permission to call the `grantRole` and `revokeRole` functions. A role can be granted or revoked by using these if the calling account has the corresponding admin role. Multiple roles may have the same admin role to make management easier. A role's admin can even be the same role itself, which would cause accounts with that role to be able to also grant and revoke it. + +This mechanism can be used to create complex permissioning structures resembling organizational charts, but it also provides an easy way to manage simpler applications. `AccessControl` includes a special role, called `DEFAULT_ADMIN_ROLE`, which acts as the **default admin role for all roles**. An account with this role will be able to manage any other role, unless `_setRoleAdmin` is used to select a new admin role. + +Let's take a look at the ERC20 token example, this time taking advantage of the default admin role: + +[source,solidity] +---- +// contracts/MyToken.sol +// SPDX-License-Identifier: MIT +pragma solidity ^0.8.0; + +import "@openzeppelin/contracts/access/AccessControl.sol"; +import "@openzeppelin/contracts/token/ERC20/ERC20.sol"; + +contract MyToken is ERC20, AccessControl { + bytes32 public constant MINTER_ROLE = keccak256("MINTER_ROLE"); + bytes32 public constant BURNER_ROLE = keccak256("BURNER_ROLE"); + + constructor() ERC20("MyToken", "TKN") { + // Grant the contract deployer the default admin role: it will be able + // to grant and revoke any roles + _grantRole(DEFAULT_ADMIN_ROLE, msg.sender); + } + + function mint(address to, uint256 amount) public onlyRole(MINTER_ROLE) { + _mint(to, amount); + } + + function burn(address from, uint256 amount) public onlyRole(BURNER_ROLE) { + _burn(from, amount); + } +} +---- + +Note that, unlike the previous examples, no accounts are granted the 'minter' or 'burner' roles. However, because those roles' admin role is the default admin role, and _that_ role was granted to `msg.sender`, that same account can call `grantRole` to give minting or burning permission, and `revokeRole` to remove it. + +Dynamic role allocation is often a desirable property, for example in systems where trust in a participant may vary over time. It can also be used to support use cases such as https://en.wikipedia.org/wiki/Know_your_customer[KYC], where the list of role-bearers may not be known up-front, or may be prohibitively expensive to include in a single transaction. + +[[querying-privileged-accounts]] +=== Querying Privileged Accounts + +Because accounts might <> dynamically, it is not always possible to determine which accounts hold a particular role. This is important as it allows to prove certain properties about a system, such as that an administrative account is a multisig or a DAO, or that a certain role has been removed from all users, effectively disabling any associated functionality. + +Under the hood, `AccessControl` uses `EnumerableSet`, a more powerful variant of Solidity's `mapping` type, which allows for key enumeration. `getRoleMemberCount` can be used to retrieve the number of accounts that have a particular role, and `getRoleMember` can then be called to get the address of each of these accounts. + +```javascript +const minterCount = await myToken.getRoleMemberCount(MINTER_ROLE); + +const members = []; +for (let i = 0; i < minterCount; ++i) { + members.push(await myToken.getRoleMember(MINTER_ROLE, i)); +} +``` + +== Delayed operation + +Access control is essential to prevent unauthorized access to critical functions. These functions may be used to mint tokens, freeze transfers or perform an upgrade that completely changes the smart contract logic. While xref:api:access.adoc#Ownable[`Ownable`] and xref:api:access.adoc#AccessControl[`AccessControl`] can prevent unauthorized access, they do not address the issue of a misbehaving administrator attacking their own system to the prejudice of their users. + +This is the issue the xref:api:governance.adoc#TimelockController[`TimelockController`] is addressing. + +The xref:api:governance.adoc#TimelockController[`TimelockController`] is a proxy that is governed by proposers and executors. When set as the owner/admin/controller of a smart contract, it ensures that whichever maintenance operation is ordered by the proposers is subject to a delay. This delay protects the users of the smart contract by giving them time to review the maintenance operation and exit the system if they consider it is in their best interest to do so. + +=== Using `TimelockController` + +By default, the address that deployed the xref:api:governance.adoc#TimelockController[`TimelockController`] gets administration privileges over the timelock. This role grants the right to assign proposers, executors, and other administrators. + +The first step in configuring the xref:api:governance.adoc#TimelockController[`TimelockController`] is to assign at least one proposer and one executor. These can be assigned during construction or later by anyone with the administrator role. These roles are not exclusive, meaning an account can have both roles. + +Roles are managed using the xref:api:access.adoc#AccessControl[`AccessControl`] interface and the `bytes32` values for each role are accessible through the `ADMIN_ROLE`, `PROPOSER_ROLE` and `EXECUTOR_ROLE` constants. + +There is an additional feature built on top of `AccessControl`: giving the executor role to `address(0)` opens access to anyone to execute a proposal once the timelock has expired. This feature, while useful, should be used with caution. + +At this point, with both a proposer and an executor assigned, the timelock can perform operations. + +An optional next step is for the deployer to renounce its administrative privileges and leave the timelock self-administered. If the deployer decides to do so, all further maintenance, including assigning new proposers/schedulers or changing the timelock duration will have to follow the timelock workflow. This links the governance of the timelock to the governance of contracts attached to the timelock, and enforce a delay on timelock maintenance operations. + +WARNING: If the deployer renounces administrative rights in favour of timelock itself, assigning new proposers or executors will require a timelocked operation. This means that if the accounts in charge of any of these two roles become unavailable, then the entire contract (and any contract it controls) becomes locked indefinitely. + +With both the proposer and executor roles assigned and the timelock in charge of its own administration, you can now transfer the ownership/control of any contract to the timelock. + +TIP: A recommended configuration is to grant both roles to a secure governance contract such as a DAO or a multisig, and to additionally grant the executor role to a few EOAs held by people in charge of helping with the maintenance operations. These wallets cannot take over control of the timelock but they can help smoothen the workflow. + +=== Minimum delay + +Operations executed by the xref:api:governance.adoc#TimelockController[`TimelockController`] are not subject to a fixed delay but rather a minimum delay. Some major updates might call for a longer delay. For example, if a delay of just a few days might be sufficient for users to audit a minting operation, it makes sense to use a delay of a few weeks, or even a few months, when scheduling a smart contract upgrade. + +The minimum delay (accessible through the xref:api:governance.adoc#TimelockController-getMinDelay--[`getMinDelay`] method) can be updated by calling the xref:api:governance.adoc#TimelockController-updateDelay-uint256-[`updateDelay`] function. Bear in mind that access to this function is only accessible by the timelock itself, meaning this maintenance operation has to go through the timelock itself. diff --git a/lib/openzeppelin-contracts/docs/modules/ROOT/pages/crosschain.adoc b/lib/openzeppelin-contracts/docs/modules/ROOT/pages/crosschain.adoc new file mode 100644 index 0000000..cbe24df --- /dev/null +++ b/lib/openzeppelin-contracts/docs/modules/ROOT/pages/crosschain.adoc @@ -0,0 +1,210 @@ += Adding cross-chain support to contracts + +If your contract is targeting to be used in the context of multichain operations, you may need specific tools to identify and process these cross-chain operations. + +OpenZeppelin provides the xref:api:crosschain.adoc#CrossChainEnabled[`CrossChainEnabled`] abstract contract, that includes dedicated internal functions. + +In this guide, we will go through an example use case: _how to build an upgradeable & mintable ERC20 token controlled by a governor present on a foreign chain_. + +== Starting point, our ERC20 contract + +Let's start with a small ERC20 contract, that we bootstrapped using the https://wizard.openzeppelin.com/[OpenZeppelin Contracts Wizard], and extended with an owner that has the ability to mint. Note that for demonstration purposes we have not used the built-in `Ownable` contract. + +[source,solidity] +---- +// SPDX-License-Identifier: MIT +pragma solidity ^0.8.4; + +import "@openzeppelin/contracts-upgradeable/token/ERC20/ERC20Upgradeable.sol"; +import "@openzeppelin/contracts-upgradeable/proxy/utils/Initializable.sol"; +import "@openzeppelin/contracts-upgradeable/proxy/utils/UUPSUpgradeable.sol"; + +contract MyToken is Initializable, ERC20Upgradeable, UUPSUpgradeable { + address public owner; + + modifier onlyOwner() { + require(owner == _msgSender(), "Not authorized"); + _; + } + + /// @custom:oz-upgrades-unsafe-allow constructor + constructor() initializer {} + + function initialize(address initialOwner) initializer public { + __ERC20_init("MyToken", "MTK"); + __UUPSUpgradeable_init(); + + owner = initialOwner; + } + + function mint(address to, uint256 amount) public onlyOwner { + _mint(to, amount); + } + + function _authorizeUpgrade(address newImplementation) internal override onlyOwner { + } +} +---- + +This token is mintable and upgradeable by the owner of the contract. + +== Preparing our contract for cross-chain operations. + +Let's now imagine that this contract is going to live on one chain, but we want the minting and the upgrading to be performed by a xref:governance.adoc[`governor`] contract on another chain. + +For example, we could have our token on xDai, with our governor on mainnet, or we could have our token on mainnet, with our governor on optimism + +In order to do that, we will start by adding xref:api:crosschain.adoc#CrossChainEnabled[`CrossChainEnabled`] to our contract. You will notice that the contract is now abstract. This is because `CrossChainEnabled` is an abstract contract: it is not tied to any particular chain and it deals with cross-chain interactions in an abstract way. This is what enables us to easily reuse the code for different chains. We will specialize it later by inheriting from a chain-specific implementation of the abstraction. + +```diff + import "@openzeppelin/contracts-upgradeable/proxy/utils/UUPSUpgradeable.sol"; ++import "@openzeppelin/contracts-upgradeable/crosschain/CrossChainEnabled.sol"; + +-contract MyToken is Initializable, ERC20Upgradeable, UUPSUpgradeable { ++abstract contract MyTokenCrossChain is Initializable, ERC20Upgradeable, UUPSUpgradeable, CrossChainEnabled { +``` + +Once that is done, we can use the `onlyCrossChainSender` modifier, provided by `CrossChainEnabled` in order to protect the minting and upgrading operations. + +```diff +- function mint(address to, uint256 amount) public onlyOwner { ++ function mint(address to, uint256 amount) public onlyCrossChainSender(owner) { + +- function _authorizeUpgrade(address newImplementation) internal override onlyOwner { ++ function _authorizeUpgrade(address newImplementation) internal override onlyCrossChainSender(owner) { +``` + +This change will effectively restrict the mint and upgrade operations to the `owner` on the remote chain. + +== Specializing for a specific chain + +Once the abstract cross-chain version of our token is ready we can easily specialize it for the chain we want, or more precisely for the bridge system that we want to rely on. + +This is done using one of the many `CrossChainEnabled` implementations. + +For example, if our token is on xDai, and our governor on mainnet, we can use the https://docs.tokenbridge.net/amb-bridge/about-amb-bridge[AMB] bridge available on xDai at https://blockscout.com/xdai/mainnet/address/0x75Df5AF045d91108662D8080fD1FEFAd6aA0bb59[0x75Df5AF045d91108662D8080fD1FEFAd6aA0bb59] + +[source,solidity] +---- +[...] + +import "@openzeppelin/contracts-upgradeable/crosschain/amb/CrossChainEnabledAMB.sol"; + +contract MyTokenXDAI is + MyTokenCrossChain, + CrossChainEnabledAMB(0x75Df5AF045d91108662D8080fD1FEFAd6aA0bb59) +{} +---- + +If the token is on Ethereum mainnet, and our governor on Optimism, we use the Optimism https://community.optimism.io/docs/protocol/protocol-2.0/#l1crossdomainmessenger[CrossDomainMessenger] available on mainnet at https://etherscan.io/address/0x25ace71c97B33Cc4729CF772ae268934F7ab5fA1[0x25ace71c97B33Cc4729CF772ae268934F7ab5fA1]. + +[source,solidity] +---- +[...] + +import "@openzeppelin/contracts-upgradeable/crosschain/optimismCrossChainEnabledOptimism.sol"; + +contract MyTokenOptimism is + MyTokenCrossChain, + CrossChainEnabledOptimism(0x25ace71c97B33Cc4729CF772ae268934F7ab5fA1) +{} +---- + +== Mixing cross domain addresses is dangerous + +When designing a contract with cross-chain support, it is essential to understand possible fallbacks and the security assumption that are being made. + +In this guide, we are particularly focusing on restricting access to a specific caller. This is usually done (as shown above) using `msg.sender` or `_msgSender()`. However, when going cross-chain, it is not just that simple. Even without considering possible bridge issues, it is important to keep in mind that the same address can correspond to very different entities when considering a multi-chain space. EOA wallets can only execute operations if the wallet's private-key signs the transaction. To our knowledge this is the case in all EVM chains, so a cross-chain message coming from such a wallet is arguably equivalent to a non-cross-chain message by the same wallet. The situation is however very different for smart contracts. + +Due to the way smart contract addresses are computed, and the fact that smart contracts on different chains live independent lives, you could have two very different contracts live at the same address on different chains. You could imagine two multisig wallets with different signers using the same address on different chains. You could also see a very basic smart wallet live on one chain at the same address as a full-fledged governor on another chain. Therefore, you should be careful that whenever you give permissions to a specific address, you control with chain this address can act from. + +== Going further with access control + +In the previous example, we have both an `onlyOwner()` modifier and the `onlyCrossChainSender(owner)` mechanism. We didn't use the xref:access-control.adoc#ownership-and-ownable[`Ownable`] pattern because the ownership transfer mechanism in includes is not designed to work with the owner being a cross-chain entity. Unlike xref:access-control.adoc#ownership-and-ownable[`Ownable`], xref:access-control.adoc#role-based-access-control[`AccessControl`] is more effective at capturing the nuances and can effectively be used to build cross-chain-aware contracts. + +Using xref:api:access.adoc#AccessControlCrossChain[`AccessControlCrossChain`] includes both the xref:api:access.adoc#AccessControl[`AccessControl`] core and the xref:api:crosschain.adoc#CrossChainEnabled[`CrossChainEnabled`] abstraction. It also includes some binding to make role management compatible with cross-chain operations. + +In the case of the `mint` function, the caller must have the `MINTER_ROLE` when the call originates from the same chain. If the caller is on a remote chain, then the caller should not have the `MINTER_ROLE`, but the "aliased" version (`MINTER_ROLE ^ CROSSCHAIN_ALIAS`). This mitigates the danger described in the previous section by strictly separating local accounts from remote accounts from a different chain. See the xref:api:access.adoc#AccessControlCrossChain[`AccessControlCrossChain`] documentation for more details. + + +```diff + import "@openzeppelin/contracts-upgradeable/token/ERC20/ERC20Upgradeable.sol"; + import "@openzeppelin/contracts-upgradeable/proxy/utils/Initializable.sol"; ++import "@openzeppelin/contracts-upgradeable/access/AccessControlCrossChainUpgradeable.sol"; + +-abstract contract MyTokenCrossChain is Initializable, ERC20Upgradeable, UUPSUpgradeable, CrossChainEnabled { ++abstract contract MyTokenCrossChain is Initializable, ERC20Upgradeable, UUPSUpgradeable, AccessControlCrossChainUpgradeable { + +- address public owner; +- modifier onlyOwner() { +- require(owner == _msgSender(), "Not authorized"); +- _; +- } + ++ bytes32 public constant MINTER_ROLE = keccak256("MINTER_ROLE"); ++ bytes32 public constant UPGRADER_ROLE = keccak256("UPGRADER_ROLE"); + + function initialize(address initialOwner) initializer public { + __ERC20_init("MyToken", "MTK"); + __UUPSUpgradeable_init(); ++ __AccessControl_init(); ++ _grantRole(_crossChainRoleAlias(DEFAULT_ADMIN_ROLE), initialOwner); // initialOwner is on a remote chain +- owner = initialOwner; + } + +- function mint(address to, uint256 amount) public onlyCrossChainSender(owner) { ++ function mint(address to, uint256 amount) public onlyRole(MINTER_ROLE) { + +- function _authorizeUpgrade(address newImplementation) internal override onlyCrossChainSender(owner) { ++ function _authorizeUpgrade(address newImplementation) internal override onlyRole(UPGRADER_ROLE) { +``` + +This results in the following, final, code: + +[source,solidity] +---- +// SPDX-License-Identifier: MIT +pragma solidity ^0.8.4; + +import "@openzeppelin/contracts-upgradeable/token/ERC20/ERC20Upgradeable.sol"; +import "@openzeppelin/contracts-upgradeable/access/AccessControlCrossChainUpgradeable.sol"; +import "@openzeppelin/contracts-upgradeable/proxy/utils/Initializable.sol"; +import "@openzeppelin/contracts-upgradeable/proxy/utils/UUPSUpgradeable.sol"; + +abstract contract MyTokenCrossChain is Initializable, ERC20Upgradeable, AccessControlCrossChainUpgradeable, UUPSUpgradeable { + bytes32 public constant MINTER_ROLE = keccak256("MINTER_ROLE"); + bytes32 public constant UPGRADER_ROLE = keccak256("UPGRADER_ROLE"); + + /// @custom:oz-upgrades-unsafe-allow constructor + constructor() initializer {} + + function initialize(address initialOwner) initializer public { + __ERC20_init("MyToken", "MTK"); + __AccessControl_init(); + __UUPSUpgradeable_init(); + + _grantRole(_crossChainRoleAlias(DEFAULT_ADMIN_ROLE), initialOwner); // initialOwner is on a remote chain + } + + function mint(address to, uint256 amount) public onlyRole(MINTER_ROLE) { + _mint(to, amount); + } + + function _authorizeUpgrade(address newImplementation) internal onlyRole(UPGRADER_ROLE) override { + } +} + +import "@openzeppelin/contracts-upgradeable/crosschain/amb/CrossChainEnabledAMB.sol"; + +contract MyTokenXDAI is + MyTokenCrossChain, + CrossChainEnabledAMB(0x75Df5AF045d91108662D8080fD1FEFAd6aA0bb59) +{} + +import "@openzeppelin/contracts-upgradeable/crosschain/optimismCrossChainEnabledOptimism.sol"; + +contract MyTokenOptimism is + MyTokenCrossChain, + CrossChainEnabledOptimism(0x25ace71c97B33Cc4729CF772ae268934F7ab5fA1) +{} +---- diff --git a/lib/openzeppelin-contracts/docs/modules/ROOT/pages/crowdsales.adoc b/lib/openzeppelin-contracts/docs/modules/ROOT/pages/crowdsales.adoc new file mode 100644 index 0000000..3757921 --- /dev/null +++ b/lib/openzeppelin-contracts/docs/modules/ROOT/pages/crowdsales.adoc @@ -0,0 +1,11 @@ += Crowdsales + +All crowdsale-related contracts were removed from the OpenZeppelin Contracts library on the https://forum.openzeppelin.com/t/openzeppelin-contracts-v3-0-beta-release/2256[v3.0.0 release] due to both a decline in their usage and the complexity associated with migrating them to Solidity v0.6. + +They are however still available on the v2.5 release of OpenZeppelin Contracts, which you can install by running: + +```console +$ npm install @openzeppelin/contracts@v2.5 +``` + +Refer to the https://docs.openzeppelin.com/contracts/2.x/crowdsales[v2.x documentation] when working with them. diff --git a/lib/openzeppelin-contracts/docs/modules/ROOT/pages/drafts.adoc b/lib/openzeppelin-contracts/docs/modules/ROOT/pages/drafts.adoc new file mode 100644 index 0000000..b2c1ae6 --- /dev/null +++ b/lib/openzeppelin-contracts/docs/modules/ROOT/pages/drafts.adoc @@ -0,0 +1,19 @@ += Drafts + +All draft contracts were either moved into a different directory or removed from the OpenZeppelin Contracts library on the https://forum.openzeppelin.com/t/openzeppelin-contracts-v3-0-beta-release/2256[v3.0.0 release]. + +* `ERC20Migrator`: removed. +* xref:api:token/ERC20.adoc#ERC20Snapshot[`ERC20Snapshot`]: moved to `token/ERC20`. +* `ERC20Detailed` and `ERC1046`: removed. +* `TokenVesting`: removed. Pending a replacement that is being discussed in https://github.com/OpenZeppelin/openzeppelin-contracts/issues/1214[`#1214`]. +* xref:api:utils.adoc#Counters[`Counters`]: moved to xref:api:utils.adoc[`utils`]. +* xref:api:utils.adoc#Strings[`Strings`]: moved to xref:api:utils.adoc[`utils`]. +* xref:api:utils.adoc#SignedSafeMath[`SignedSafeMath`]: moved to xref:api:utils.adoc[`utils`]. + +Removed contracts are still available on the v2.5 release of OpenZeppelin Contracts, which you can install by running: + +```console +$ npm install @openzeppelin/contracts@v2.5 +``` + +Refer to the xref:2.x@contracts:api:drafts.adoc[v2.x documentation] when working with them. diff --git a/lib/openzeppelin-contracts/docs/modules/ROOT/pages/erc1155.adoc b/lib/openzeppelin-contracts/docs/modules/ROOT/pages/erc1155.adoc new file mode 100644 index 0000000..b47d7a0 --- /dev/null +++ b/lib/openzeppelin-contracts/docs/modules/ROOT/pages/erc1155.adoc @@ -0,0 +1,153 @@ += ERC1155 + +ERC1155 is a novel token standard that aims to take the best from previous standards to create a xref:tokens.adoc#different-kinds-of-tokens[*fungibility-agnostic*] and *gas-efficient* xref:tokens.adoc#but_first_coffee_a_primer_on_token_contracts[token contract]. + +TIP: ERC1155 draws ideas from all of xref:erc20.adoc[ERC20], xref:erc721.adoc[ERC721], and xref:erc777.adoc[ERC777]. If you're unfamiliar with those standards, head to their guides before moving on. + +[[multi-token-standard]] +== Multi Token Standard + +The distinctive feature of ERC1155 is that it uses a single smart contract to represent multiple tokens at once. This is why its xref:api:token/ERC1155.adoc#IERC1155-balanceOf-address-uint256-[`balanceOf`] function differs from ERC20's and ERC777's: it has an additional `id` argument for the identifier of the token that you want to query the balance of. + +This is similar to how ERC721 does things, but in that standard a token `id` has no concept of balance: each token is non-fungible and exists or doesn't. The ERC721 xref:api:token/ERC721.adoc#IERC721-balanceOf-address-[`balanceOf`] function refers to _how many different tokens_ an account has, not how many of each. On the other hand, in ERC1155 accounts have a distinct balance for each token `id`, and non-fungible tokens are implemented by simply minting a single one of them. + +This approach leads to massive gas savings for projects that require multiple tokens. Instead of deploying a new contract for each token type, a single ERC1155 token contract can hold the entire system state, reducing deployment costs and complexity. + +[[batch-operations]] +== Batch Operations + +Because all state is held in a single contract, it is possible to operate over multiple tokens in a single transaction very efficiently. The standard provides two functions, xref:api:token/ERC1155.adoc#IERC1155-balanceOfBatch-address---uint256---[`balanceOfBatch`] and xref:api:token/ERC1155.adoc#IERC1155-safeBatchTransferFrom-address-address-uint256---uint256---bytes-[`safeBatchTransferFrom`], that make querying multiple balances and transferring multiple tokens simpler and less gas-intensive. + +In the spirit of the standard, we've also included batch operations in the non-standard functions, such as xref:api:token/ERC1155.adoc#ERC1155-_mintBatch-address-uint256---uint256---bytes-[`_mintBatch`]. + +== Constructing an ERC1155 Token Contract + +We'll use ERC1155 to track multiple items in our game, which will each have their own unique attributes. We mint all items to the deployer of the contract, which we can later transfer to players. Players are free to keep their tokens or trade them with other people as they see fit, as they would any other asset on the blockchain! + +For simplicity, we will mint all items in the constructor, but you could add minting functionality to the contract to mint on demand to players. + +TIP: For an overview of minting mechanisms, check out xref:erc20-supply.adoc[Creating ERC20 Supply]. + +Here's what a contract for tokenized items might look like: + +[source,solidity] +---- +// contracts/GameItems.sol +// SPDX-License-Identifier: MIT +pragma solidity ^0.8.0; + +import "@openzeppelin/contracts/token/ERC1155/ERC1155.sol"; + +contract GameItems is ERC1155 { + uint256 public constant GOLD = 0; + uint256 public constant SILVER = 1; + uint256 public constant THORS_HAMMER = 2; + uint256 public constant SWORD = 3; + uint256 public constant SHIELD = 4; + + constructor() ERC1155("https://game.example/api/item/{id}.json") { + _mint(msg.sender, GOLD, 10**18, ""); + _mint(msg.sender, SILVER, 10**27, ""); + _mint(msg.sender, THORS_HAMMER, 1, ""); + _mint(msg.sender, SWORD, 10**9, ""); + _mint(msg.sender, SHIELD, 10**9, ""); + } +} +---- + +Note that for our Game Items, Gold is a fungible token whilst Thor's Hammer is a non-fungible token as we minted only one. + +The xref:api:token/ERC1155.adoc#ERC1155[`ERC1155`] contract includes the optional extension xref:api:token/ERC1155.adoc#IERC1155MetadataURI[`IERC1155MetadataURI`]. That's where the xref:api:token/ERC1155.adoc#IERC1155MetadataURI-uri-uint256-[`uri`] function comes from: we use it to retrieve the metadata uri. + +Also note that, unlike ERC20, ERC1155 lacks a `decimals` field, since each token is distinct and cannot be partitioned. + +Once deployed, we will be able to query the deployer’s balance: +[source,javascript] +---- +> gameItems.balanceOf(deployerAddress,3) +1000000000 +---- + +We can transfer items to player accounts: +[source,javascript] +---- +> gameItems.safeTransferFrom(deployerAddress, playerAddress, 2, 1, "0x0") +> gameItems.balanceOf(playerAddress, 2) +1 +> gameItems.balanceOf(deployerAddress, 2) +0 +---- + +We can also batch transfer items to player accounts and get the balance of batches: +[source,javascript] +---- +> gameItems.safeBatchTransferFrom(deployerAddress, playerAddress, [0,1,3,4], [50,100,1,1], "0x0") +> gameItems.balanceOfBatch([playerAddress,playerAddress,playerAddress,playerAddress,playerAddress], [0,1,2,3,4]) +[50,100,1,1,1] +---- + +The metadata uri can be obtained: + +[source,javascript] +---- +> gameItems.uri(2) +"https://game.example/api/item/{id}.json" +---- + +The `uri` can include the string `++{id}++` which clients must replace with the actual token ID, in lowercase hexadecimal (with no 0x prefix) and leading zero padded to 64 hex characters. + +For token ID `2` and uri `++https://game.example/api/item/{id}.json++` clients would replace `++{id}++` with `0000000000000000000000000000000000000000000000000000000000000002` to retrieve JSON at `https://game.example/api/item/0000000000000000000000000000000000000000000000000000000000000002.json`. + +The JSON document for token ID 2 might look something like: + +[source,json] +---- +{ + "name": "Thor's hammer", + "description": "Mjölnir, the legendary hammer of the Norse god of thunder.", + "image": "https://game.example/item-id-8u5h2m.png", + "strength": 20 +} +---- + +For more information about the metadata JSON Schema, check out the https://github.com/ethereum/EIPs/blob/master/EIPS/eip-1155.md#erc-1155-metadata-uri-json-schema[ERC-1155 Metadata URI JSON Schema]. + +NOTE: You'll notice that the item's information is included in the metadata, but that information isn't on-chain! So a game developer could change the underlying metadata, changing the rules of the game! + +TIP: If you'd like to put all item information on-chain, you can extend ERC721 to do so (though it will be rather costly) by providing a xref:utilities.adoc#base64[`Base64`] Data URI with the JSON schema encoded. You could also leverage IPFS to store the URI information, but these techniques are out of the scope of this overview guide + +[[sending-to-contracts]] +== Sending Tokens to Contracts + +A key difference when using xref:api:token/ERC1155.adoc#IERC1155-safeTransferFrom-address-address-uint256-uint256-bytes-[`safeTransferFrom`] is that token transfers to other contracts may revert with the following message: + +[source,text] +---- +ERC1155: transfer to non ERC1155Receiver implementer +---- + +This is a good thing! It means that the recipient contract has not registered itself as aware of the ERC1155 protocol, so transfers to it are disabled to *prevent tokens from being locked forever*. As an example, https://etherscan.io/token/0xa74476443119A942dE498590Fe1f2454d7D4aC0d?a=0xa74476443119A942dE498590Fe1f2454d7D4aC0d[the Golem contract currently holds over 350k `GNT` tokens], worth multiple tens of thousands of dollars, and lacks methods to get them out of there. This has happened to virtually every ERC20-backed project, usually due to user error. + +In order for our contract to receive ERC1155 tokens we can inherit from the convenience contract xref:api:token/ERC1155.adoc#ERC1155Holder[`ERC1155Holder`] which handles the registering for us. Though we need to remember to implement functionality to allow tokens to be transferred out of our contract: + +[source,solidity] +---- +// contracts/MyContract.sol +// SPDX-License-Identifier: MIT +pragma solidity ^0.8.0; + +import "@openzeppelin/contracts/token/ERC1155/utils/ERC1155Holder.sol"; + +contract MyContract is ERC1155Holder { +} +---- + +We can also implement more complex scenarios using the xref:api:token/ERC1155.adoc#IERC1155Receiver-onERC1155Received-address-address-uint256-uint256-bytes-[`onERC1155Received`] and xref:api:token/ERC1155.adoc#IERC1155Receiver-onERC1155BatchReceived-address-address-uint256---uint256---bytes-[`onERC1155BatchReceived`] functions. + +[[Presets]] +== Preset ERC1155 contract +A preset ERC1155 is available, https://github.com/OpenZeppelin/openzeppelin-contracts/blob/release-v4.7/contracts/token/ERC1155/presets/ERC1155PresetMinterPauser.sol[`ERC1155PresetMinterPauser`]. It is preset to allow for token minting (create) - including batch minting, stop all token transfers (pause) and allow holders to burn (destroy) their tokens. The contract uses xref:access-control.adoc[Access Control] to control access to the minting and pausing functionality. The account that deploys the contract will be granted the minter and pauser roles, as well as the default admin role. + +This contract is ready to deploy without having to write any Solidity code. It can be used as-is for quick prototyping and testing, but is also suitable for production environments. + +NOTE: Contract presets are now deprecated in favor of https://wizard.openzeppelin.com[Contracts Wizard] as a more powerful alternative. diff --git a/lib/openzeppelin-contracts/docs/modules/ROOT/pages/erc20-supply.adoc b/lib/openzeppelin-contracts/docs/modules/ROOT/pages/erc20-supply.adoc new file mode 100644 index 0000000..31b0cd9 --- /dev/null +++ b/lib/openzeppelin-contracts/docs/modules/ROOT/pages/erc20-supply.adoc @@ -0,0 +1,113 @@ += Creating ERC20 Supply + +In this guide, you will learn how to create an ERC20 token with a custom supply mechanism. We will showcase two idiomatic ways to use OpenZeppelin Contracts for this purpose that you will be able to apply to your smart contract development practice. + +The standard interface implemented by tokens built on Ethereum is called ERC20, and Contracts includes a widely used implementation of it: the aptly named xref:api:token/ERC20.adoc[`ERC20`] contract. This contract, like the standard itself, is quite simple and bare-bones. In fact, if you try to deploy an instance of `ERC20` as-is it will be quite literally useless... it will have no supply! What use is a token with no supply? + +The way that supply is created is not defined in the ERC20 document. Every token is free to experiment with its own mechanisms, ranging from the most decentralized to the most centralized, from the most naive to the most researched, and more. + +[[fixed-supply]] +== Fixed Supply + +Let's say we want a token with a fixed supply of 1000, initially allocated to the account that deploys the contract. If you've used Contracts v1, you may have written code like the following: + +[source,solidity] +---- +contract ERC20FixedSupply is ERC20 { + constructor() { + totalSupply += 1000; + balances[msg.sender] += 1000; + } +} +---- + +Starting with Contracts v2, this pattern is not only discouraged, but disallowed. The variables `totalSupply` and `balances` are now private implementation details of `ERC20`, and you can't directly write to them. Instead, there is an internal xref:api:token/ERC20.adoc#ERC20-_mint-address-uint256-[`_mint`] function that will do exactly this: + +[source,solidity] +---- +contract ERC20FixedSupply is ERC20 { + constructor() ERC20("Fixed", "FIX") { + _mint(msg.sender, 1000); + } +} +---- + +Encapsulating state like this makes it safer to extend contracts. For instance, in the first example we had to manually keep the `totalSupply` in sync with the modified balances, which is easy to forget. In fact, we omitted something else that is also easily forgotten: the `Transfer` event that is required by the standard, and which is relied on by some clients. The second example does not have this bug, because the internal `_mint` function takes care of it. + +[[rewarding-miners]] +== Rewarding Miners + +The internal xref:api:token/ERC20.adoc#ERC20-_mint-address-uint256-[`_mint`] function is the key building block that allows us to write ERC20 extensions that implement a supply mechanism. + +The mechanism we will implement is a token reward for the miners that produce Ethereum blocks. In Solidity, we can access the address of the current block's miner in the global variable `block.coinbase`. We will mint a token reward to this address whenever someone calls the function `mintMinerReward()` on our token. The mechanism may sound silly, but you never know what kind of dynamic this might result in, and it's worth analyzing and experimenting with! + +[source,solidity] +---- +contract ERC20WithMinerReward is ERC20 { + constructor() ERC20("Reward", "RWD") {} + + function mintMinerReward() public { + _mint(block.coinbase, 1000); + } +} +---- + +As we can see, `_mint` makes it super easy to do this correctly. + +[[modularizing-the-mechanism]] +== Modularizing the Mechanism + +There is one supply mechanism already included in Contracts: `ERC20PresetMinterPauser`. This is a generic mechanism in which a set of accounts is assigned the `minter` role, granting them the permission to call a `mint` function, an external version of `_mint`. + +This can be used for centralized minting, where an externally owned account (i.e. someone with a pair of cryptographic keys) decides how much supply to create and for whom. There are very legitimate use cases for this mechanism, such as https://medium.com/reserve-currency/why-another-stablecoin-866f774afede#3aea[traditional asset-backed stablecoins]. + +The accounts with the minter role don't need to be externally owned, though, and can just as well be smart contracts that implement a trustless mechanism. We can in fact implement the same behavior as the previous section. + +[source,solidity] +---- +contract MinerRewardMinter { + ERC20PresetMinterPauser _token; + + constructor(ERC20PresetMinterPauser token) { + _token = token; + } + + function mintMinerReward() public { + _token.mint(block.coinbase, 1000); + } +} +---- + +This contract, when initialized with an `ERC20PresetMinterPauser` instance, and granted the `minter` role for that contract, will result in exactly the same behavior implemented in the previous section. What is interesting about using `ERC20PresetMinterPauser` is that we can easily combine multiple supply mechanisms by assigning the role to multiple contracts, and moreover that we can do this dynamically. + +TIP: To learn more about roles and permissioned systems, head to our xref:access-control.adoc[Access Control guide]. + +[[automating-the-reward]] +== Automating the Reward + +So far our supply mechanisms were triggered manually, but `ERC20` also allows us to extend the core functionality of the token through the xref:api:token/ERC20.adoc#ERC20-_beforeTokenTransfer-address-address-uint256-[`_beforeTokenTransfer`] hook (see xref:extending-contracts.adoc#using-hooks[Using Hooks]). + +Adding to the supply mechanism from previous sections, we can use this hook to mint a miner reward for every token transfer that is included in the blockchain. + +[source,solidity] +---- +contract ERC20WithAutoMinerReward is ERC20 { + constructor() ERC20("Reward", "RWD") {} + + function _mintMinerReward() internal { + _mint(block.coinbase, 1000); + } + + function _beforeTokenTransfer(address from, address to, uint256 value) internal virtual override { + if (!(from == address(0) && to == block.coinbase)) { + _mintMinerReward(); + } + super._beforeTokenTransfer(from, to, value); + } +} +---- + +[[wrapping-up]] +== Wrapping Up + +We've seen two ways to implement ERC20 supply mechanisms: internally through `_mint`, and externally through `ERC20PresetMinterPauser`. Hopefully this has helped you understand how to use OpenZeppelin Contracts and some of the design principles behind it, and you can apply them to your own smart contracts. diff --git a/lib/openzeppelin-contracts/docs/modules/ROOT/pages/erc20.adoc b/lib/openzeppelin-contracts/docs/modules/ROOT/pages/erc20.adoc new file mode 100644 index 0000000..168b024 --- /dev/null +++ b/lib/openzeppelin-contracts/docs/modules/ROOT/pages/erc20.adoc @@ -0,0 +1,85 @@ += ERC20 + +An ERC20 token contract keeps track of xref:tokens.adoc#different-kinds-of-tokens[_fungible_ tokens]: any one token is exactly equal to any other token; no tokens have special rights or behavior associated with them. This makes ERC20 tokens useful for things like a *medium of exchange currency*, *voting rights*, *staking*, and more. + +OpenZeppelin Contracts provides many ERC20-related contracts. On the xref:api:token/ERC20.adoc[`API reference`] you'll find detailed information on their properties and usage. + +[[constructing-an-erc20-token-contract]] +== Constructing an ERC20 Token Contract + +Using Contracts, we can easily create our own ERC20 token contract, which will be used to track _Gold_ (GLD), an internal currency in a hypothetical game. + +Here's what our GLD token might look like. + +[source,solidity] +---- +// contracts/GLDToken.sol +// SPDX-License-Identifier: MIT +pragma solidity ^0.8.0; + +import "@openzeppelin/contracts/token/ERC20/ERC20.sol"; + +contract GLDToken is ERC20 { + constructor(uint256 initialSupply) ERC20("Gold", "GLD") { + _mint(msg.sender, initialSupply); + } +} +---- + +Our contracts are often used via https://solidity.readthedocs.io/en/latest/contracts.html#inheritance[inheritance], and here we're reusing xref:api:token/ERC20.adoc#erc20[`ERC20`] for both the basic standard implementation and the xref:api:token/ERC20.adoc#ERC20-name--[`name`], xref:api:token/ERC20.adoc#ERC20-symbol--[`symbol`], and xref:api:token/ERC20.adoc#ERC20-decimals--[`decimals`] optional extensions. Additionally, we're creating an `initialSupply` of tokens, which will be assigned to the address that deploys the contract. + +TIP: For a more complete discussion of ERC20 supply mechanisms, see xref:erc20-supply.adoc[Creating ERC20 Supply]. + +That's it! Once deployed, we will be able to query the deployer's balance: + +[source,javascript] +---- +> GLDToken.balanceOf(deployerAddress) +1000000000000000000000 +---- + +We can also xref:api:token/ERC20.adoc#IERC20-transfer-address-uint256-[transfer] these tokens to other accounts: + +[source,javascript] +---- +> GLDToken.transfer(otherAddress, 300000000000000000000) +> GLDToken.balanceOf(otherAddress) +300000000000000000000 +> GLDToken.balanceOf(deployerAddress) +700000000000000000000 +---- + +[[a-note-on-decimals]] +== A Note on `decimals` + +Often, you'll want to be able to divide your tokens into arbitrary amounts: say, if you own `5 GLD`, you may want to send `1.5 GLD` to a friend, and keep `3.5 GLD` to yourself. Unfortunately, Solidity and the EVM do not support this behavior: only integer (whole) numbers can be used, which poses an issue. You may send `1` or `2` tokens, but not `1.5`. + +To work around this, xref:api:token/ERC20.adoc#ERC20[`ERC20`] provides a xref:api:token/ERC20.adoc#ERC20-decimals--[`decimals`] field, which is used to specify how many decimal places a token has. To be able to transfer `1.5 GLD`, `decimals` must be at least `1`, since that number has a single decimal place. + +How can this be achieved? It's actually very simple: a token contract can use larger integer values, so that a balance of `50` will represent `5 GLD`, a transfer of `15` will correspond to `1.5 GLD` being sent, and so on. + +It is important to understand that `decimals` is _only used for display purposes_. All arithmetic inside the contract is still performed on integers, and it is the different user interfaces (wallets, exchanges, etc.) that must adjust the displayed values according to `decimals`. The total token supply and balance of each account are not specified in `GLD`: you need to divide by `10 ** decimals` to get the actual `GLD` amount. + +You'll probably want to use a `decimals` value of `18`, just like Ether and most ERC20 token contracts in use, unless you have a very special reason not to. When minting tokens or transferring them around, you will be actually sending the number `num GLD * (10 ** decimals)`. + +NOTE: By default, `ERC20` uses a value of `18` for `decimals`. To use a different value, you will need to override the `decimals()` function in your contract. + +```solidity +function decimals() public view virtual override returns (uint8) { + return 16; +} +``` + +So if you want to send `5` tokens using a token contract with 18 decimals, the method to call will actually be: + +```solidity +transfer(recipient, 5 * (10 ** 18)); +``` + +[[Presets]] +== Preset ERC20 contract +A preset ERC20 is available, https://github.com/OpenZeppelin/openzeppelin-contracts/blob/release-v4.7/contracts/token/ERC20/presets/ERC20PresetMinterPauser.sol[`ERC20PresetMinterPauser`]. It is preset to allow for token minting (create), stop all token transfers (pause) and allow holders to burn (destroy) their tokens. The contract uses xref:access-control.adoc[Access Control] to control access to the minting and pausing functionality. The account that deploys the contract will be granted the minter and pauser roles, as well as the default admin role. + +This contract is ready to deploy without having to write any Solidity code. It can be used as-is for quick prototyping and testing, but is also suitable for production environments. + +NOTE: Contract presets are now deprecated in favor of https://wizard.openzeppelin.com[Contracts Wizard] as a more powerful alternative. diff --git a/lib/openzeppelin-contracts/docs/modules/ROOT/pages/erc721.adoc b/lib/openzeppelin-contracts/docs/modules/ROOT/pages/erc721.adoc new file mode 100644 index 0000000..add40d5 --- /dev/null +++ b/lib/openzeppelin-contracts/docs/modules/ROOT/pages/erc721.adoc @@ -0,0 +1,90 @@ += ERC721 + +We've discussed how you can make a _fungible_ token using xref:erc20.adoc[ERC20], but what if not all tokens are alike? This comes up in situations like *real estate*, *voting rights*, or *collectibles*, where some items are valued more than others, due to their usefulness, rarity, etc. ERC721 is a standard for representing ownership of xref:tokens.adoc#different-kinds-of-tokens[_non-fungible_ tokens], that is, where each token is unique. + +ERC721 is a more complex standard than ERC20, with multiple optional extensions, and is split across a number of contracts. The OpenZeppelin Contracts provide flexibility regarding how these are combined, along with custom useful extensions. Check out the xref:api:token/ERC721.adoc[API Reference] to learn more about these. + +== Constructing an ERC721 Token Contract + +We'll use ERC721 to track items in our game, which will each have their own unique attributes. Whenever one is to be awarded to a player, it will be minted and sent to them. Players are free to keep their token or trade it with other people as they see fit, as they would any other asset on the blockchain! Please note any account can call `awardItem` to mint items. To restrict what accounts can mint items we can add xref:access-control.adoc[Access Control]. + +Here's what a contract for tokenized items might look like: + +[source,solidity] +---- +// contracts/GameItem.sol +// SPDX-License-Identifier: MIT +pragma solidity ^0.8.0; + +import "@openzeppelin/contracts/token/ERC721/extensions/ERC721URIStorage.sol"; +import "@openzeppelin/contracts/utils/Counters.sol"; + +contract GameItem is ERC721URIStorage { + using Counters for Counters.Counter; + Counters.Counter private _tokenIds; + + constructor() ERC721("GameItem", "ITM") {} + + function awardItem(address player, string memory tokenURI) + public + returns (uint256) + { + uint256 newItemId = _tokenIds.current(); + _mint(player, newItemId); + _setTokenURI(newItemId, tokenURI); + + _tokenIds.increment(); + return newItemId; + } +} +---- + +The xref:api:token/ERC721.adoc#ERC721URIStorage[`ERC721URIStorage`] contract is an implementation of ERC721 that includes the metadata standard extensions (xref:api:token/ERC721.adoc#IERC721Metadata[`IERC721Metadata`]) as well as a mechanism for per-token metadata. That's where the xref:api:token/ERC721.adoc#ERC721-_setTokenURI-uint256-string-[`_setTokenURI`] method comes from: we use it to store an item's metadata. + +Also note that, unlike ERC20, ERC721 lacks a `decimals` field, since each token is distinct and cannot be partitioned. + +New items can be created: + +[source,javascript] +---- +> gameItem.awardItem(playerAddress, "https://game.example/item-id-8u5h2m.json") +Transaction successful. Transaction hash: 0x... +Events emitted: + - Transfer(0x0000000000000000000000000000000000000000, playerAddress, 7) +---- + +And the owner and metadata of each item queried: + +[source,javascript] +---- +> gameItem.ownerOf(7) +playerAddress +> gameItem.tokenURI(7) +"https://game.example/item-id-8u5h2m.json" +---- + +This `tokenURI` should resolve to a JSON document that might look something like: + +[source,json] +---- +{ + "name": "Thor's hammer", + "description": "Mjölnir, the legendary hammer of the Norse god of thunder.", + "image": "https://game.example/item-id-8u5h2m.png", + "strength": 20 +} +---- + +For more information about the `tokenURI` metadata JSON Schema, check out the https://eips.ethereum.org/EIPS/eip-721[ERC721 specification]. + +NOTE: You'll notice that the item's information is included in the metadata, but that information isn't on-chain! So a game developer could change the underlying metadata, changing the rules of the game! + +TIP: If you'd like to put all item information on-chain, you can extend ERC721 to do so (though it will be rather costly) by providing a xref:utilities.adoc#base64[`Base64`] Data URI with the JSON schema encoded. You could also leverage IPFS to store the tokenURI information, but these techniques are out of the scope of this overview guide. + +[[Presets]] +== Preset ERC721 contract +A preset ERC721 is available, https://github.com/OpenZeppelin/openzeppelin-contracts/blob/release-v4.7/contracts/token/ERC721/presets/ERC721PresetMinterPauserAutoId.sol[`ERC721PresetMinterPauserAutoId`]. It is preconfigured with token minting (creation) with token ID and URI auto generation, the ability to stop all token transfers (pause), and it allows holders to burn (destroy) their tokens. The contract uses xref:access-control.adoc[Access Control] to control access to the minting and pausing functionality. The account that deploys the contract will be granted the minter and pauser roles, as well as the default admin role. + +This contract is ready to deploy without having to write any Solidity code. It can be used as-is for quick prototyping and testing but is also suitable for production environments. + +NOTE: Contract presets are now deprecated in favor of https://wizard.openzeppelin.com[Contracts Wizard] as a more powerful alternative. diff --git a/lib/openzeppelin-contracts/docs/modules/ROOT/pages/erc777.adoc b/lib/openzeppelin-contracts/docs/modules/ROOT/pages/erc777.adoc new file mode 100644 index 0000000..d79fbee --- /dev/null +++ b/lib/openzeppelin-contracts/docs/modules/ROOT/pages/erc777.adoc @@ -0,0 +1,73 @@ += ERC777 + +Like xref:erc20.adoc[ERC20], ERC777 is a standard for xref:tokens.adoc#different-kinds-of-tokens[_fungible_ tokens], and is focused around allowing more complex interactions when trading tokens. More generally, it brings tokens and Ether closer together by providing the equivalent of a `msg.value` field, but for tokens. + +The standard also brings multiple quality-of-life improvements, such as getting rid of the confusion around `decimals`, minting and burning with proper events, among others, but its killer feature is *receive hooks*. A hook is simply a function in a contract that is called when tokens are sent to it, meaning *accounts and contracts can react to receiving tokens*. + +This enables a lot of interesting use cases, including atomic purchases using tokens (no need to do `approve` and `transferFrom` in two separate transactions), rejecting reception of tokens (by reverting on the hook call), redirecting the received tokens to other addresses (similarly to how xref:api:payment#PaymentSplitter[`PaymentSplitter`] does it), among many others. + +Furthermore, since contracts are required to implement these hooks in order to receive tokens, _no tokens can get stuck in a contract that is unaware of the ERC777 protocol_, as has happened countless times when using ERC20s. + +== What If I Already Use ERC20? + +The standard has you covered! The ERC777 standard is *backwards compatible with ERC20*, meaning you can interact with these tokens as if they were ERC20, using the standard functions, while still getting all of the niceties, including send hooks. See the https://eips.ethereum.org/EIPS/eip-777#backward-compatibility[EIP's Backwards Compatibility section] to learn more. + +== Constructing an ERC777 Token Contract + +We will replicate the `GLD` example of the xref:erc20.adoc#constructing-an-erc20-token-contract[ERC20 guide], this time using ERC777. As always, check out the xref:api:token/ERC777.adoc[`API reference`] to learn more about the details of each function. + +[source,solidity] +---- +// contracts/GLDToken.sol +// SPDX-License-Identifier: MIT +pragma solidity ^0.8.0; + +import "@openzeppelin/contracts/token/ERC777/ERC777.sol"; + +contract GLDToken is ERC777 { + constructor(uint256 initialSupply, address[] memory defaultOperators) + ERC777("Gold", "GLD", defaultOperators) + { + _mint(msg.sender, initialSupply, "", ""); + } +} +---- + +In this case, we'll be extending from the xref:api:token/ERC777.adoc#ERC777[`ERC777`] contract, which provides an implementation with compatibility support for ERC20. The API is quite similar to that of xref:api:token/ERC777.adoc#ERC777[`ERC777`], and we'll once again make use of xref:api:token/ERC777.adoc#ERC777-_mint-address-address-uint256-bytes-bytes-[`_mint`] to assign the `initialSupply` to the deployer account. Unlike xref:api:token/ERC20.adoc#ERC20-_mint-address-uint256-[ERC20's `_mint`], this one includes some extra parameters, but you can safely ignore those for now. + +You'll notice both xref:api:token/ERC777.adoc#IERC777-name--[`name`] and xref:api:token/ERC777.adoc#IERC777-symbol--[`symbol`] are assigned, but not xref:api:token/ERC777.adoc#ERC777-decimals--[`decimals`]. The ERC777 specification makes it mandatory to include support for these functions (unlike ERC20, where it is optional and we had to include xref:api:token/ERC20.adoc#ERC20Detailed[`ERC20Detailed`]), but also mandates that `decimals` always returns a fixed value of `18`, so there's no need to set it ourselves. For a review of ``decimals``'s role and importance, refer back to our xref:erc20.adoc#a-note-on-decimals[ERC20 guide]. + +Finally, we'll need to set the xref:api:token/ERC777.adoc#IERC777-defaultOperators--[`defaultOperators`]: special accounts (usually other smart contracts) that will be able to transfer tokens on behalf of their holders. If you're not planning on using operators in your token, you can simply pass an empty array. _Stay tuned for an upcoming in-depth guide on ERC777 operators!_ + +That's it for a basic token contract! We can now deploy it, and use the same xref:api:token/ERC777.adoc#IERC777-balanceOf-address-[`balanceOf`] method to query the deployer's balance: + +[source,javascript] +---- +> GLDToken.balanceOf(deployerAddress) +1000 +---- + +To move tokens from one account to another, we can use both xref:api:token/ERC777.adoc#ERC777-transfer-address-uint256-[``ERC20``'s `transfer`] method, or the new xref:api:token/ERC777.adoc#ERC777-send-address-uint256-bytes-[``ERC777``'s `send`], which fulfills a very similar role, but adds an optional `data` field: + +[source,javascript] +---- +> GLDToken.transfer(otherAddress, 300) +> GLDToken.send(otherAddress, 300, "") +> GLDToken.balanceOf(otherAddress) +600 +> GLDToken.balanceOf(deployerAddress) +400 +---- + +== Sending Tokens to Contracts + +A key difference when using xref:api:token/ERC777.adoc#ERC777-send-address-uint256-bytes-[`send`] is that token transfers to other contracts may revert with the following message: + +[source,text] +---- +ERC777: token recipient contract has no implementer for ERC777TokensRecipient +---- + +This is a good thing! It means that the recipient contract has not registered itself as aware of the ERC777 protocol, so transfers to it are disabled to *prevent tokens from being locked forever*. As an example, https://etherscan.io/token/0xa74476443119A942dE498590Fe1f2454d7D4aC0d?a=0xa74476443119A942dE498590Fe1f2454d7D4aC0d[the Golem contract currently holds over 350k `GNT` tokens], worth multiple tens of thousands of dollars, and lacks methods to get them out of there. This has happened to virtually every ERC20-backed project, usually due to user error. + +_An upcoming guide will cover how a contract can register itself as a recipient, send and receive hooks, and other advanced features of ERC777!_ diff --git a/lib/openzeppelin-contracts/docs/modules/ROOT/pages/extending-contracts.adoc b/lib/openzeppelin-contracts/docs/modules/ROOT/pages/extending-contracts.adoc new file mode 100644 index 0000000..7330fc9 --- /dev/null +++ b/lib/openzeppelin-contracts/docs/modules/ROOT/pages/extending-contracts.adoc @@ -0,0 +1,131 @@ += Extending Contracts + +Most of the OpenZeppelin Contracts are expected to be used via https://solidity.readthedocs.io/en/latest/contracts.html#inheritance[inheritance]: you will _inherit_ from them when writing your own contracts. + +This is the commonly found `is` syntax, like in `contract MyToken is ERC20`. + +[NOTE] +==== +Unlike ``contract``s, Solidity ``library``s are not inherited from and instead rely on the https://solidity.readthedocs.io/en/latest/contracts.html#using-for[`using for`] syntax. + +OpenZeppelin Contracts has some ``library``s: most are in the xref:api:utils.adoc[Utils] directory. +==== + +== Overriding + +Inheritance is often used to add the parent contract's functionality to your own contract, but that's not all it can do. You can also _change_ how some parts of the parent behave using _overrides_. + +For example, imagine you want to change xref:api:access.adoc#AccessControl[`AccessControl`] so that xref:api:access.adoc#AccessControl-revokeRole-bytes32-address-[`revokeRole`] can no longer be called. This can be achieved using overrides: + +```solidity +// contracts/ModifiedAccessControl.sol +// SPDX-License-Identifier: MIT +pragma solidity ^0.8.0; + +import "@openzeppelin/contracts/access/AccessControl.sol"; + +contract ModifiedAccessControl is AccessControl { + // Override the revokeRole function + function revokeRole(bytes32, address) public override { + revert("ModifiedAccessControl: cannot revoke roles"); + } +} +``` + +The old `revokeRole` is then replaced by our override, and any calls to it will immediately revert. We cannot _remove_ the function from the contract, but reverting on all calls is good enough. + +=== Calling `super` + +Sometimes you want to _extend_ a parent's behavior, instead of outright changing it to something else. This is where `super` comes in. + +The `super` keyword will let you call functions defined in a parent contract, even if they are overridden. This mechanism can be used to add additional checks to a function, emit events, or otherwise add functionality as you see fit. + +TIP: For more information on how overrides work, head over to the https://solidity.readthedocs.io/en/latest/contracts.html#index-17[official Solidity documentation]. + +Here is a modified version of xref:api:access.adoc#AccessControl[`AccessControl`] where xref:api:access.adoc#AccessControl-revokeRole-bytes32-address-[`revokeRole`] cannot be used to revoke the `DEFAULT_ADMIN_ROLE`: + + +```solidity +// contracts/ModifiedAccessControl.sol +// SPDX-License-Identifier: MIT +pragma solidity ^0.8.0; + +import "@openzeppelin/contracts/access/AccessControl.sol"; + +contract ModifiedAccessControl is AccessControl { + function revokeRole(bytes32 role, address account) public override { + require( + role != DEFAULT_ADMIN_ROLE, + "ModifiedAccessControl: cannot revoke default admin role" + ); + + super.revokeRole(role, account); + } +} +``` + +The `super.revokeRole` statement at the end will invoke ``AccessControl``'s original version of `revokeRole`, the same code that would've run if there were no overrides in place. + +NOTE: As of v3.0.0, `view` functions are not `virtual` in OpenZeppelin, and therefore cannot be overridden. We're considering https://github.com/OpenZeppelin/openzeppelin-contracts/issues/2154[lifting this restriction] in an upcoming release. Let us know if this is something you care about! + +[[using-hooks]] +== Using Hooks + +Sometimes, in order to extend a parent contract you will need to override multiple related functions, which leads to code duplication and increased likelihood of bugs. + +For example, consider implementing safe xref:api:token/ERC20.adoc#ERC20[`ERC20`] transfers in the style of xref:api:token/ERC721.adoc#IERC721Receiver[`IERC721Receiver`]. You may think overriding xref:api:token/ERC20.adoc#ERC20-transfer-address-uint256-[`transfer`] and xref:api:token/ERC20.adoc#ERC20-transferFrom-address-address-uint256-[`transferFrom`] would be enough, but what about xref:api:token/ERC20.adoc#ERC20-_transfer-address-address-uint256-[`_transfer`] and xref:api:token/ERC20.adoc#ERC20-_mint-address-uint256-[`_mint`]? To prevent you from having to deal with these details, we introduced **hooks**. + +Hooks are simply functions that are called before or after some action takes place. They provide a centralized point to _hook into_ and extend the original behavior. + +Here's how you would implement the `IERC721Receiver` pattern in `ERC20`, using the xref:api:token/ERC20.adoc#ERC20-_beforeTokenTransfer-address-address-uint256-[`_beforeTokenTransfer`] hook: + +```solidity +pragma solidity ^0.8.0; + +import "@openzeppelin/contracts/token/ERC20/ERC20.sol"; + +contract ERC20WithSafeTransfer is ERC20 { + function _beforeTokenTransfer(address from, address to, uint256 amount) + internal virtual override + { + super._beforeTokenTransfer(from, to, amount); + + require(_validRecipient(to), "ERC20WithSafeTransfer: invalid recipient"); + } + + function _validRecipient(address to) private view returns (bool) { + ... + } + + ... +} +``` + +Using hooks this way leads to cleaner and safer code, without having to rely on a deep understanding of the parent's internals. + +=== Rules of Hooks + +There's a few guidelines you should follow when writing code that uses hooks in order to prevent issues. They are very simple, but do make sure you follow them: + +1. Whenever you override a parent's hook, re-apply the `virtual` attribute to the hook. That will allow child contracts to add more functionality to the hook. +2. **Always** call the parent's hook in your override using `super`. This will make sure all hooks in the inheritance tree are called: contracts like xref:api:token/ERC20.adoc#ERC20Pausable[`ERC20Pausable`] rely on this behavior. + +```solidity +contract MyToken is ERC20 { + function _beforeTokenTransfer(address from, address to, uint256 amount) + internal virtual override // Add virtual here! + { + super._beforeTokenTransfer(from, to, amount); // Call parent hook + ... + } +} +``` +That's it! Enjoy simpler code using hooks! + +== Security + +The maintainers of OpenZeppelin Contracts are mainly concerned with the correctness and security of the code as published in the library, and the combinations of base contracts with the official extensions from the library. + +Custom overrides, and those of hooks in particular, may break some important assumptions and introduce vulnerabilities in otherwise secure code. While we try to ensure the contracts remain secure in the face of a wide range of potential customizations, this is done in a best-effort manner. While we try to document all important assumptions, this should not be relied upon. Custom overrides should be carefully reviewed and checked against the source code of the contract they are customizing so as to fully understand their impact and guarantee their security. + +The way functions interact internally should not be assumed to stay stable across releases of the library. For example, a function that is used in one context in a particular release may not be used in the same context in the next release. Contracts that override functions should revalidate their assumptions when updating the version of OpenZeppelin Contracts they are built on. diff --git a/lib/openzeppelin-contracts/docs/modules/ROOT/pages/governance.adoc b/lib/openzeppelin-contracts/docs/modules/ROOT/pages/governance.adoc new file mode 100644 index 0000000..aa27c0b --- /dev/null +++ b/lib/openzeppelin-contracts/docs/modules/ROOT/pages/governance.adoc @@ -0,0 +1,321 @@ += How to set up on-chain governance + +In this guide we will learn how OpenZeppelin’s Governor contract works, how to set it up, and how to use it to create proposals, vote for them, and execute them, using tools provided by Ethers.js and Tally. + +NOTE: Find detailed contract documentation at xref:api:governance.adoc[Governance API]. + +== Introduction + +Decentralized protocols are in constant evolution from the moment they are publicly released. Often, the initial team retains control of this evolution in the first stages, but eventually delegates it to a community of stakeholders. The process by which this community makes decisions is called on-chain governance, and it has become a central component of decentralized protocols, fueling varied decisions such as parameter tweaking, smart contract upgrades, integrations with other protocols, treasury management, grants, etc. + +This governance protocol is generally implemented in a special-purpose contract called “Governor”. The GovernorAlpha and GovernorBravo contracts designed by Compound have been very successful and popular so far, with the downside that projects with different requirements have had to fork the code to customize it for their needs, which can pose a high risk of introducing security issues. For OpenZeppelin Contracts, we set out to build a modular system of Governor contracts so that forking is not needed, and different requirements can be accommodated by writing small modules using Solidity inheritance. You will find the most common requirements out of the box in OpenZeppelin Contracts, but writing additional ones is simple, and we will be adding new features as requested by the community in future releases. Additionally, the design of OpenZeppelin Governor requires minimal use of storage and results in more gas efficient operation. + +== Compatibility + +OpenZeppelin’s Governor system was designed with a concern for compatibility with existing systems that were based on Compound’s GovernorAlpha and GovernorBravo. Because of this, you will find that many modules are presented in two variants, one of which is built for compatibility with those systems. + +=== ERC20Votes & ERC20VotesComp + +The ERC20 extension to keep track of votes and vote delegation is one such case. The shorter one is the more generic version because it can support token supplies greater than 2^96, while the “Comp” variant is limited in that regard, but exactly fits the interface of the COMP token that is used by GovernorAlpha and Bravo. Both contract variants share the same events, so they are fully compatible when looking at events only. + +=== Governor & GovernorCompatibilityBravo + +An OpenZeppelin Governor contract is by default not interface-compatible with GovernorAlpha or Bravo, since some of the functions are different or missing, although it shares all of the same events. However, it’s possible to opt in to full compatibility by inheriting from the GovernorCompatibilityBravo module. The contract will be cheaper to deploy and use without this module. + +=== GovernorTimelockControl & GovernorTimelockCompound + +When using a timelock with your Governor contract, you can use either OpenZeppelin’s TimelockController or Compound’s Timelock. Based on the choice of timelock, you should choose the corresponding Governor module: GovernorTimelockControl or GovernorTimelockCompound respectively. This allows you to migrate an existing GovernorAlpha instance to an OpenZeppelin-based Governor without changing the timelock in use. + +=== Tally + +https://www.tally.xyz[Tally] is a full-fledged application for user owned on-chain governance. It comprises a voting dashboard, proposal creation wizard, real time research and analysis, and educational content. + +For all of these options, the Governor will be compatible with Tally: users will be able to create proposals, visualize voting power and advocates, navigate proposals, and cast votes. For proposal creation in particular, projects can also use Defender Admin as an alternative interface. + +In the rest of this guide, we will focus on a fresh deploy of the vanilla OpenZeppelin Governor features without concern for compatibility with GovernorAlpha or Bravo. + +== Setup + +=== Token + +The voting power of each account in our governance setup will be determined by an ERC20 token. The token has to implement the ERC20Votes extension. This extension will keep track of historical balances so that voting power is retrieved from past snapshots rather than current balance, which is an important protection that prevents double voting. + +```solidity +// SPDX-License-Identifier: MIT +pragma solidity ^0.8.2; + +import "@openzeppelin/contracts/token/ERC20/ERC20.sol"; +import "@openzeppelin/contracts/token/ERC20/extensions/ERC20Permit.sol"; +import "@openzeppelin/contracts/token/ERC20/extensions/ERC20Votes.sol"; + +contract MyToken is ERC20, ERC20Permit, ERC20Votes { + constructor() ERC20("MyToken", "MTK") ERC20Permit("MyToken") {} + + // The functions below are overrides required by Solidity. + + function _afterTokenTransfer(address from, address to, uint256 amount) + internal + override(ERC20, ERC20Votes) + { + super._afterTokenTransfer(from, to, amount); + } + + function _mint(address to, uint256 amount) + internal + override(ERC20, ERC20Votes) + { + super._mint(to, amount); + } + + function _burn(address account, uint256 amount) + internal + override(ERC20, ERC20Votes) + { + super._burn(account, amount); + } +} +``` + +If your project already has a live token that does not include ERC20Votes and is not upgradeable, you can wrap it in a governance token by using ERC20Wrapper. This will allow token holders to participate in governance by wrapping their tokens 1-to-1. + +```solidity +// SPDX-License-Identifier: MIT +pragma solidity ^0.8.2; + +import "@openzeppelin/contracts/token/ERC20/ERC20.sol"; +import "@openzeppelin/contracts/token/ERC20/extensions/ERC20Permit.sol"; +import "@openzeppelin/contracts/token/ERC20/extensions/ERC20Votes.sol"; +import "@openzeppelin/contracts/token/ERC20/extensions/ERC20Wrapper.sol"; + +contract MyToken is ERC20, ERC20Permit, ERC20Votes, ERC20Wrapper { + constructor(IERC20 wrappedToken) + ERC20("MyToken", "MTK") + ERC20Permit("MyToken") + ERC20Wrapper(wrappedToken) + {} + + // The functions below are overrides required by Solidity. + + function _afterTokenTransfer(address from, address to, uint256 amount) + internal + override(ERC20, ERC20Votes) + { + super._afterTokenTransfer(from, to, amount); + } + + function _mint(address to, uint256 amount) + internal + override(ERC20, ERC20Votes) + { + super._mint(to, amount); + } + + function _burn(address account, uint256 amount) + internal + override(ERC20, ERC20Votes) + { + super._burn(account, amount); + } +} +``` + +NOTE: Voting power could be determined in different ways: multiple ERC20 tokens, ERC721 tokens, sybil resistant identities, etc. All of these options are potentially supported by writing a custom Votes module for your Governor. The only other source of voting power available in OpenZeppelin Contracts currently is xref:api:token/ERC721.adoc#ERC721Votes[`ERC721Votes`]. + +=== Governor + +Initially, we will build a Governor without a timelock. The core logic is given by the Governor contract, but we still need to choose: 1) how voting power is determined, 2) how many votes are needed for quorum, 3) what options people have when casting a vote and how those votes are counted, and 4) what type of token should be used to vote. Each of these aspects is customizable by writing your own module, or more easily choosing one from OpenZeppelin Contracts. + +For 1) we will use the GovernorVotes module, which hooks to an IVotes instance to determine the voting power of an account based on the token balance they hold when a proposal becomes active. This module requires as a constructor parameter the address of the token. + +For 2) we will use GovernorVotesQuorumFraction which works together with ERC20Votes to define quorum as a percentage of the total supply at the block a proposal’s voting power is retrieved. This requires a constructor parameter to set the percentage. Most Governors nowadays use 4%, so we will initialize the module with parameter 4 (this indicates the percentage, resulting in 4%). + +For 3) we will use GovernorCountingSimple, a module that offers 3 options to voters: For, Against, and Abstain, and where only For and Abstain votes are counted towards quorum. + +Besides these modules, Governor itself has some parameters we must set. + +votingDelay: How long after a proposal is created should voting power be fixed. A large voting delay gives users time to unstake tokens if necessary. + +votingPeriod: How long does a proposal remain open to votes. + +These parameters are specified in number of blocks. Assuming block time of around 13.14 seconds, we will set votingDelay = 1 day = 6570 blocks, and votingPeriod = 1 week = 45992 blocks. + +We can optionally set a proposal threshold as well. This restricts proposal creation to accounts who have enough voting power. + +```solidity +// SPDX-License-Identifier: MIT +pragma solidity ^0.8.2; + +import "@openzeppelin/contracts/governance/Governor.sol"; +import "@openzeppelin/contracts/governance/compatibility/GovernorCompatibilityBravo.sol"; +import "@openzeppelin/contracts/governance/extensions/GovernorVotes.sol"; +import "@openzeppelin/contracts/governance/extensions/GovernorVotesQuorumFraction.sol"; +import "@openzeppelin/contracts/governance/extensions/GovernorTimelockControl.sol"; + +contract MyGovernor is Governor, GovernorCompatibilityBravo, GovernorVotes, GovernorVotesQuorumFraction, GovernorTimelockControl { + constructor(IVotes _token, TimelockController _timelock) + Governor("MyGovernor") + GovernorVotes(_token) + GovernorVotesQuorumFraction(4) + GovernorTimelockControl(_timelock) + {} + + function votingDelay() public pure override returns (uint256) { + return 6575; // 1 day + } + + function votingPeriod() public pure override returns (uint256) { + return 46027; // 1 week + } + + function proposalThreshold() public pure override returns (uint256) { + return 0; + } + + // The functions below are overrides required by Solidity. + + function state(uint256 proposalId) + public + view + override(Governor, IGovernor, GovernorTimelockControl) + returns (ProposalState) + { + return super.state(proposalId); + } + + function propose(address[] memory targets, uint256[] memory values, bytes[] memory calldatas, string memory description) + public + override(Governor, GovernorCompatibilityBravo, IGovernor) + returns (uint256) + { + return super.propose(targets, values, calldatas, description); + } + + function _execute(uint256 proposalId, address[] memory targets, uint256[] memory values, bytes[] memory calldatas, bytes32 descriptionHash) + internal + override(Governor, GovernorTimelockControl) + { + super._execute(proposalId, targets, values, calldatas, descriptionHash); + } + + function _cancel(address[] memory targets, uint256[] memory values, bytes[] memory calldatas, bytes32 descriptionHash) + internal + override(Governor, GovernorTimelockControl) + returns (uint256) + { + return super._cancel(targets, values, calldatas, descriptionHash); + } + + function _executor() + internal + view + override(Governor, GovernorTimelockControl) + returns (address) + { + return super._executor(); + } + + function supportsInterface(bytes4 interfaceId) + public + view + override(Governor, IERC165, GovernorTimelockControl) + returns (bool) + { + return super.supportsInterface(interfaceId); + } +} + +``` + +=== Timelock + +It is good practice to add a timelock to governance decisions. This allows users to exit the system if they disagree with a decision before it is executed. We will use OpenZeppelin’s TimelockController in combination with the GovernorTimelockControl module. + +IMPORTANT: When using a timelock, it is the timelock that will execute proposals and thus the timelock that should hold any funds, ownership, and access control roles. Before version 4.5 there was no way to recover funds in the Governor contract when using a timelock! Before version 4.3, when using the Compound Timelock, ETH in the timelock was not easily accessible. + +TimelockController uses an AccessControl setup that we need to understand in order to set up roles. + +- The Proposer role is in charge of queueing operations: this is the role the Governor instance should be granted, and it should likely be the only proposer in the system. +- The Executor role is in charge of executing already available operations: we can assign this role to the special zero address to allow anyone to execute (if operations can be particularly time sensitive, the Governor should be made Executor instead). +- Lastly, there is the Admin role, which can grant and revoke the two previous roles: this is a very sensitive role that will be granted automatically to the timelock itself, and optionally to a second account, which can be used for ease of setup but should promptly renounce the role. + +== Proposal Lifecycle + +Let’s walk through how to create and execute a proposal on our newly deployed Governor. + +A proposal is a sequence of actions that the Governor contract will perform if it passes. Each action consists of a target address, calldata encoding a function call, and an amount of ETH to include. Additionally, a proposal includes a human-readable description. + +=== Create a Proposal + +Let’s say we want to create a proposal to give a team a grant, in the form of ERC20 tokens from the governance treasury. This proposal will consist of a single action where the target is the ERC20 token, calldata is the encoded function call `transfer(, )`, and with 0 ETH attached. + +Generally a proposal will be created with the help of an interface such as Tally or Defender. Here we will show how to create the proposal using Ethers.js. + +First we get all the parameters necessary for the proposal action. + +```javascript +const tokenAddress = ...; +const token = await ethers.getContractAt(‘ERC20’, tokenAddress); + +const teamAddress = ...; +const grantAmount = ...; +const transferCalldata = token.interface.encodeFunctionData(‘transfer’, [teamAddress, grantAmount]); +``` + +Now we are ready to call the propose function of the governor. Note that we don’t pass in one array of actions, but instead three arrays corresponding to the list of targets, the list of values, and the list of calldatas. In this case it’s a single action, so it’s simple: + +```javascript +await governor.propose( + [tokenAddress], + [0], + [transferCalldata], + “Proposal #1: Give grant to team”, +); +``` + +This will create a new proposal, with a proposal id that is obtained by hashing together the proposal data, and which will also be found in an event in the logs of the transaction. + +=== Cast a Vote + +Once a proposal is active, delegates can cast their vote. Note that it is delegates who carry voting power: if a token holder wants to participate, they can set a trusted representative as their delegate, or they can become a delegate themselves by self-delegating their voting power. + +Votes are cast by interacting with the Governor contract through the `castVote` family of functions. Voters would generally invoke this from a governance UI such as Tally. + +image::tally-vote.png[Voting in Tally] + +=== Execute the Proposal + +Once the voting period is over, if quorum was reached (enough voting power participated) and the majority voted in favor, the proposal is considered successful and can proceed to be executed. This can also be done in Tally in the "Administration Panel" section of a project. + +image::tally-admin.png[Administration Panel in Tally] + +We will see now how to do this manually using Ethers.js. + +If a timelock was set up, the first step to execution is queueing. You will notice that both the queue and execute functions require passing in the entire proposal parameters, as opposed to just the proposal id. This is necessary because this data is not stored on chain, as a measure to save gas. Note that these parameters can always be found in the events emitted by the contract. The only parameter that is not sent in its entirety is the description, since this is only needed in its hashed form to compute the proposal id. + +To queue, we call the queue function: + +```javascript +const descriptionHash = ethers.utils.id(“Proposal #1: Give grant to team”); + +await governor.queue( + [tokenAddress], + [0], + [transferCalldata], + descriptionHash, +); +``` + +This will cause the governor to interact with the timelock contract and queue the actions for execution after the required delay. + +After enough time has passed (according to the timelock parameters), the proposal can be executed. If there was no timelock to begin with, this step can be ran immediately after the proposal succeeds. + +```javascript +await governor.execute( + [tokenAddress], + [0], + [transferCalldata], + descriptionHash, +); +``` + +Executing the proposal will transfer the ERC20 tokens to the chosen recipient. To wrap up: we set up a system where a treasury is controlled by the collective decision of the token holders of a project, and all actions are executed via proposals enforced by on-chain votes. diff --git a/lib/openzeppelin-contracts/docs/modules/ROOT/pages/index.adoc b/lib/openzeppelin-contracts/docs/modules/ROOT/pages/index.adoc new file mode 100644 index 0000000..5b64f05 --- /dev/null +++ b/lib/openzeppelin-contracts/docs/modules/ROOT/pages/index.adoc @@ -0,0 +1,63 @@ += Contracts + +*A library for secure smart contract development.* Build on a solid foundation of community-vetted code. + + * Implementations of standards like xref:erc20.adoc[ERC20] and xref:erc721.adoc[ERC721]. + * Flexible xref:access-control.adoc[role-based permissioning] scheme. + * Reusable xref:utilities.adoc[Solidity components] to build custom contracts and complex decentralized systems. + +== Overview + +[[install]] +=== Installation + +```console +$ npm install @openzeppelin/contracts +``` + +OpenZeppelin Contracts features a xref:releases-stability.adoc#api-stability[stable API], which means your contracts won't break unexpectedly when upgrading to a newer minor version. + +[[usage]] +=== Usage + +Once installed, you can use the contracts in the library by importing them: + +[source,solidity] +---- +// contracts/MyNFT.sol +// SPDX-License-Identifier: MIT +pragma solidity ^0.8.0; + +import "@openzeppelin/contracts/token/ERC721/ERC721.sol"; + +contract MyNFT is ERC721 { + constructor() ERC721("MyNFT", "MNFT") { + } +} +---- + +TIP: If you're new to smart contract development, head to xref:learn::developing-smart-contracts.adoc[Developing Smart Contracts] to learn about creating a new project and compiling your contracts. + +To keep your system secure, you should **always** use the installed code as-is, and neither copy-paste it from online sources, nor modify it yourself. The library is designed so that only the contracts and functions you use are deployed, so you don't need to worry about it needlessly increasing gas costs. + +[[security]] +== Security + +Please report any security issues you find via our https://www.immunefi.com/bounty/openzeppelin[bug bounty program on Immunefi] or directly to security@openzeppelin.org. + +[[next-steps]] +== Learn More + +The guides in the sidebar will teach about different concepts, and how to use the related contracts that OpenZeppelin Contracts provides: + +* xref:access-control.adoc[Access Control]: decide who can perform each of the actions on your system. +* xref:tokens.adoc[Tokens]: create tradable assets or collectibles, like the well known xref:erc20.adoc[ERC20] and xref:erc721.adoc[ERC721] standards. +* xref:utilities.adoc[Utilities]: generic useful tools, including non-overflowing math, signature verification, and trustless paying systems. + +The xref:api:token/ERC20.adoc[full API] is also thoroughly documented, and serves as a great reference when developing your smart contract application. You can also ask for help or follow Contracts' development in the https://forum.openzeppelin.com[community forum]. + +Finally, you may want to take a look at the https://blog.openzeppelin.com/guides/[guides on our blog], which cover several common use cases and good practices. The following articles provide great background reading, though please note, some of the referenced tools have changed as the tooling in the ecosystem continues to rapidly evolve. + +* https://blog.openzeppelin.com/the-hitchhikers-guide-to-smart-contracts-in-ethereum-848f08001f05[The Hitchhiker’s Guide to Smart Contracts in Ethereum] will help you get an overview of the various tools available for smart contract development, and help you set up your environment. +* https://blog.openzeppelin.com/a-gentle-introduction-to-ethereum-programming-part-1-783cc7796094[A Gentle Introduction to Ethereum Programming, Part 1] provides very useful information on an introductory level, including many basic concepts from the Ethereum platform. +* For a more in-depth dive, you may read the guide https://blog.openzeppelin.com/designing-the-architecture-for-your-ethereum-application-9cec086f8317[Designing the architecture for your Ethereum application], which discusses how to better structure your application and its relationship to the real world. diff --git a/lib/openzeppelin-contracts/docs/modules/ROOT/pages/releases-stability.adoc b/lib/openzeppelin-contracts/docs/modules/ROOT/pages/releases-stability.adoc new file mode 100644 index 0000000..9a33103 --- /dev/null +++ b/lib/openzeppelin-contracts/docs/modules/ROOT/pages/releases-stability.adoc @@ -0,0 +1,85 @@ += New Releases and API Stability + +Developing smart contracts is hard, and a conservative approach towards dependencies is sometimes favored. However, it is also very important to stay on top of new releases: these may include bug fixes, or deprecate old patterns in favor of newer and better practices. + +Here we describe when you should expect new releases to come out, and how this affects you as a user of OpenZeppelin Contracts. + +[[release-schedule]] +== Release Schedule + +OpenZeppelin Contracts follows a <>. + +We aim for a new minor release every 1 or 2 months. + +[[minor-releases]] +=== Release Candidates + +Before every release, we publish a feature-frozen release candidate. The purpose of the release candidate is to have a period where the community can review the new code before the actual release. If important problems are discovered, several more release candidates may be required. After a week of no more changes to the release candidate, the new version is published. + +[[major-releases]] +=== Major Releases + +After several months or a year, a new major release may come out. These are not scheduled, but will be based on the need to release breaking changes such as a redesign of a core feature of the library (e.g. https://github.com/OpenZeppelin/openzeppelin-contracts/pulls/2112[access control] in 3.0). Since we value stability, we aim for these to happen infrequently (expect no less than six months between majors). However, we may be forced to release one when there are big changes to the Solidity language. + +[[api-stability]] +== API Stability + +On the https://github.com/OpenZeppelin/openzeppelin-contracts/releases/tag/v2.0.0[OpenZeppelin Contracts 2.0 release], we committed ourselves to keeping a stable API. We aim to more precisely define what we understand by _stable_ and _API_ here, so users of the library can understand these guarantees and be confident their project won't break unexpectedly. + +In a nutshell, the API being stable means _if your project is working today, it will continue to do so after a minor upgrade_. New contracts and features will be added in minor releases, but only in a backwards compatible way. + +[[versioning-scheme]] +=== Versioning Scheme + +We follow https://semver.org/[SemVer], which means API breakage may occur between major releases (which <>). + +[[solidity-functions]] +=== Solidity Functions + +While the internal implementation of functions may change, their semantics and signature will remain the same. The domain of their arguments will not be less restrictive (e.g. if transferring a value of 0 is disallowed, it will remain disallowed), nor will general state restrictions be lifted (e.g. `whenPaused` modifiers). + +If new functions are added to a contract, it will be in a backwards-compatible way: their usage won't be mandatory, and they won't extend functionality in ways that may foreseeably break an application (e.g. https://github.com/OpenZeppelin/openzeppelin-contracts/issues/1512[an `internal` method may be added to make it easier to retrieve information that was already available]). + +[[internal]] +==== `internal` + +This extends not only to `external` and `public` functions, but also `internal` ones: many contracts are meant to be used by inheriting them (e.g. `Pausable`, `PullPayment`, `AccessControl`), and are therefore used by calling these functions. Similarly, since all OpenZeppelin Contracts state variables are `private`, they can only be accessed this way (e.g. to create new `ERC20` tokens, instead of manually modifying `totalSupply` and `balances`, `_mint` should be called). + +`private` functions have no guarantees on their behavior, usage, or existence. + +Finally, sometimes language limitations will force us to e.g. make `internal` a function that should be `private` in order to implement features the way we want to. These cases will be well documented, and the normal stability guarantees won't apply. + +[[libraries]] +=== Libraries + +Some of our Solidity libraries use ``struct``s to handle internal data that should not be accessed directly (e.g. `Counter`). There's an https://github.com/ethereum/solidity/issues/4637[open issue] in the Solidity repository requesting a language feature to prevent said access, but it looks like it won't be implemented any time soon. Because of this, we will use leading underscores and mark said `struct` s to make it clear to the user that its contents and layout are _not_ part of the API. + +[[events]] +=== Events + +No events will be removed, and their arguments won't be changed in any way. New events may be added in later versions, and existing events may be emitted under new, reasonable circumstances (e.g. https://github.com/OpenZeppelin/openzeppelin-contracts/issues/707[from 2.1 on, `ERC20` also emits `Approval` on `transferFrom` calls]). + +[[drafts]] +=== Drafts + +Some contracts implement EIPs that are still in Draft status, recognizable by a file name beginning with `draft-`, such as `utils/cryptography/draft-EIP712.sol`. Due to their nature as drafts, the details of these contracts may change and we cannot guarantee their stability. Minor releases of OpenZeppelin Contracts may contain breaking changes for the contracts labelled as Drafts, which will be duly announced in the https://github.com/OpenZeppelin/openzeppelin-contracts/blob/master/CHANGELOG.md[changelog]. The EIPs included are used by projects in production and this may make them less likely to change significantly. + +[[gas-costs]] +=== Gas Costs + +While attempts will generally be made to lower the gas costs of working with OpenZeppelin Contracts, there are no guarantees regarding this. In particular, users should not assume gas costs will not increase when upgrading library versions. + +[[bugfixes]] +=== Bug Fixes + +The API stability guarantees may need to be broken in order to fix a bug, and we will do so. This decision won't be made lightly however, and all options will be explored to make the change as non-disruptive as possible. When sufficient, contracts or functions which may result in unsafe behavior will be deprecated instead of removed (e.g. https://github.com/OpenZeppelin/openzeppelin-contracts/pull/1543[#1543] and https://github.com/OpenZeppelin/openzeppelin-contracts/pull/1550[#1550]). + +[[solidity-compiler-version]] +=== Solidity Compiler Version + +Starting on version 0.5.0, the Solidity team switched to a faster release cycle, with minor releases every few weeks (v0.5.0 was released on November 2018, and v0.5.5 on March 2019), and major, breaking-change releases every couple of months (with v0.6.0 released on December 2019 and v0.7.0 on July 2020). Including the compiler version in OpenZeppelin Contract's stability guarantees would therefore force the library to either stick to old compilers, or release frequent major updates simply to keep up with newer Solidity releases. + +Because of this, *the minimum required Solidity compiler version is not part of the stability guarantees*, and users may be required to upgrade their compiler when using newer versions of Contracts. Bug fixes will still be backported to past major releases so that all versions currently in use receive these updates. + +You can read more about the rationale behind this, the other options we considered and why we went down this path https://github.com/OpenZeppelin/openzeppelin-contracts/issues/1498#issuecomment-449191611[here]. + diff --git a/lib/openzeppelin-contracts/docs/modules/ROOT/pages/tokens.adoc b/lib/openzeppelin-contracts/docs/modules/ROOT/pages/tokens.adoc new file mode 100644 index 0000000..b168756 --- /dev/null +++ b/lib/openzeppelin-contracts/docs/modules/ROOT/pages/tokens.adoc @@ -0,0 +1,32 @@ += Tokens + +Ah, the "token": blockchain's most powerful and most misunderstood tool. + +A token is a _representation of something in the blockchain_. This something can be money, time, services, shares in a company, a virtual pet, anything. By representing things as tokens, we can allow smart contracts to interact with them, exchange them, create or destroy them. + +[[but_first_coffee_a_primer_on_token_contracts]] +== But First, [strikethrough]#Coffee# a Primer on Token Contracts + +Much of the confusion surrounding tokens comes from two concepts getting mixed up: _token contracts_ and the actual _tokens_. + +A _token contract_ is simply an Ethereum smart contract. "Sending tokens" actually means "calling a method on a smart contract that someone wrote and deployed". At the end of the day, a token contract is not much more than a mapping of addresses to balances, plus some methods to add and subtract from those balances. + +It is these balances that represent the _tokens_ themselves. Someone "has tokens" when their balance in the token contract is non-zero. That's it! These balances could be considered money, experience points in a game, deeds of ownership, or voting rights, and each of these tokens would be stored in different token contracts. + +[[different-kinds-of-tokens]] +== Different Kinds of Tokens + +Note that there's a big difference between having two voting rights and two deeds of ownership: each vote is equal to all others, but houses usually are not! This is called https://en.wikipedia.org/wiki/Fungibility[fungibility]. _Fungible goods_ are equivalent and interchangeable, like Ether, fiat currencies, and voting rights. _Non-fungible_ goods are unique and distinct, like deeds of ownership, or collectibles. + +In a nutshell, when dealing with non-fungibles (like your house) you care about _which ones_ you have, while in fungible assets (like your bank account statement) what matters is _how much_ you have. + +== Standards + +Even though the concept of a token is simple, they have a variety of complexities in the implementation. Because everything in Ethereum is just a smart contract, and there are no rules about what smart contracts have to do, the community has developed a variety of *standards* (called EIPs or ERCs) for documenting how a contract can interoperate with other contracts. + +You've probably heard of the ERC20 or ERC721 token standards, and that's why you're here. Head to our specialized guides to learn more about these: + + * xref:erc20.adoc[ERC20]: the most widespread token standard for fungible assets, albeit somewhat limited by its simplicity. + * xref:erc721.adoc[ERC721]: the de-facto solution for non-fungible tokens, often used for collectibles and games. + * xref:erc777.adoc[ERC777]: a richer standard for fungible tokens, enabling new use cases and building on past learnings. Backwards compatible with ERC20. + * xref:erc1155.adoc[ERC1155]: a novel standard for multi-tokens, allowing for a single contract to represent multiple fungible and non-fungible tokens, along with batched operations for increased gas efficiency. diff --git a/lib/openzeppelin-contracts/docs/modules/ROOT/pages/upgradeable.adoc b/lib/openzeppelin-contracts/docs/modules/ROOT/pages/upgradeable.adoc new file mode 100644 index 0000000..2b8d272 --- /dev/null +++ b/lib/openzeppelin-contracts/docs/modules/ROOT/pages/upgradeable.adoc @@ -0,0 +1,73 @@ += Using with Upgrades + +If your contract is going to be deployed with upgradeability, such as using the xref:upgrades-plugins::index.adoc[OpenZeppelin Upgrades Plugins], you will need to use the Upgradeable variant of OpenZeppelin Contracts. + +This variant is available as a separate package called `@openzeppelin/contracts-upgradeable`, which is hosted in the repository https://github.com/OpenZeppelin/openzeppelin-contracts-upgradeable[OpenZeppelin/openzeppelin-contracts-upgradeable]. + +It follows all of the rules for xref:upgrades-plugins::writing-upgradeable.adoc[Writing Upgradeable Contracts]: constructors are replaced by initializer functions, state variables are initialized in initializer functions, and we additionally check for storage incompatibilities across minor versions. + +TIP: OpenZeppelin provides a full suite of tools for deploying and securing upgradeable smart contracts. xref:openzeppelin::upgrades.adoc[Check out the full list of resources]. + +== Overview + +=== Installation + +```console +$ npm install @openzeppelin/contracts-upgradeable +``` + +=== Usage + +The package replicates the structure of the main OpenZeppelin Contracts package, but every file and contract has the suffix `Upgradeable`. + +```diff +-import "@openzeppelin/contracts/token/ERC721/ERC721.sol"; ++import "@openzeppelin/contracts-upgradeable/token/ERC721/ERC721Upgradeable.sol"; + +-contract MyCollectible is ERC721 { ++contract MyCollectible is ERC721Upgradeable { +``` + +Constructors are replaced by internal initializer functions following the naming convention `+__{ContractName}_init+`. Since these are internal, you must always define your own public initializer function and call the parent initializer of the contract you extend. + +```diff +- constructor() ERC721("MyCollectible", "MCO") public { ++ function initialize() initializer public { ++ __ERC721_init("MyCollectible", "MCO"); + } +``` + +CAUTION: Use with multiple inheritance requires special attention. See the section below titled <>. + +Once this contract is set up and compiled, you can deploy it using the xref:upgrades-plugins::index.adoc[Upgrades Plugins]. The following snippet shows an example deployment script using Hardhat. + +```js +// scripts/deploy-my-collectible.js +const { ethers, upgrades } = require("hardhat"); + +async function main() { + const MyCollectible = await ethers.getContractFactory("MyCollectible"); + + const mc = await upgrades.deployProxy(MyCollectible); + + await mc.deployed(); + console.log("MyCollectible deployed to:", mc.address); +} + +main(); +``` + +== Further Notes + +[[multiple-inheritance]] +=== Multiple Inheritance + +Initializer functions are not linearized by the compiler like constructors. Because of this, each `+__{ContractName}_init+` function embeds the linearized calls to all parent initializers. As a consequence, calling two of these `init` functions can potentially initialize the same contract twice. + +The function `+__{ContractName}_init_unchained+` found in every contract is the initializer function minus the calls to parent initializers, and can be used to avoid the double initialization problem, but doing this manually is not recommended. We hope to be able to implement safety checks for this in future versions of the Upgrades Plugins. + +=== Storage Gaps + +You may notice that every contract includes a state variable named `+__gap+`. This is empty reserved space in storage that is put in place in Upgradeable contracts. It allows us to freely add new state variables in the future without compromising the storage compatibility with existing deployments. + +It isn't safe to simply add a state variable because it "shifts down" all of the state variables below in the inheritance chain. This makes the storage layouts incompatible, as explained in xref:upgrades-plugins::writing-upgradeable.adoc#modifying-your-contracts[Writing Upgradeable Contracts]. The size of the `+__gap+` array is calculated so that the amount of storage used by a contract always adds up to the same number (in this case 50 storage slots). diff --git a/lib/openzeppelin-contracts/docs/modules/ROOT/pages/utilities.adoc b/lib/openzeppelin-contracts/docs/modules/ROOT/pages/utilities.adoc new file mode 100644 index 0000000..4231a6a --- /dev/null +++ b/lib/openzeppelin-contracts/docs/modules/ROOT/pages/utilities.adoc @@ -0,0 +1,190 @@ += Utilities + +The OpenZeppelin Contracts provide a ton of useful utilities that you can use in your project. Here are some of the more popular ones. + +[[cryptography]] +== Cryptography + +=== Checking Signatures On-Chain + +xref:api:utils.adoc#ECDSA[`ECDSA`] provides functions for recovering and managing Ethereum account ECDSA signatures. These are often generated via https://web3js.readthedocs.io/en/v1.7.3/web3-eth.html#sign[`web3.eth.sign`], and are a 65 byte array (of type `bytes` in Solidity) arranged the following way: `[[v (1)], [r (32)], [s (32)]]`. + +The data signer can be recovered with xref:api:utils.adoc#ECDSA-recover-bytes32-bytes-[`ECDSA.recover`], and its address compared to verify the signature. Most wallets will hash the data to sign and add the prefix '\x19Ethereum Signed Message:\n', so when attempting to recover the signer of an Ethereum signed message hash, you'll want to use xref:api:utils.adoc#ECDSA-toEthSignedMessageHash-bytes32-[`toEthSignedMessageHash`]. + +[source,solidity] +---- +using ECDSA for bytes32; + +function _verify(bytes32 data, bytes memory signature, address account) internal pure returns (bool) { + return data + .toEthSignedMessageHash() + .recover(signature) == account; +} +---- + +WARNING: Getting signature verification right is not trivial: make sure you fully read and understand xref:api:utils.adoc#ECDSA[`ECDSA`]'s documentation. + +=== Verifying Merkle Proofs + +xref:api:utils.adoc#MerkleProof[`MerkleProof`] provides: + +* xref:api:utils.adoc#MerkleProof-verify-bytes32---bytes32-bytes32-[`verify`] - can prove that some value is part of a https://en.wikipedia.org/wiki/Merkle_tree[Merkle tree]. + +* xref:api:utils.adoc#MerkleProof-multiProofVerify-bytes32-bytes32---bytes32---bool---[`multiProofVerify`] - can prove multiple values are part of a Merkle tree. + +[[introspection]] +== Introspection + +In Solidity, it's frequently helpful to know whether or not a contract supports an interface you'd like to use. ERC165 is a standard that helps do runtime interface detection. Contracts provide helpers both for implementing ERC165 in your contracts and querying other contracts: + +* xref:api:utils.adoc#IERC165[`IERC165`] — this is the ERC165 interface that defines xref:api:utils.adoc#IERC165-supportsInterface-bytes4-[`supportsInterface`]. When implementing ERC165, you'll conform to this interface. +* xref:api:utils.adoc#ERC165[`ERC165`] — inherit this contract if you'd like to support interface detection using a lookup table in contract storage. You can register interfaces using xref:api:utils.adoc#ERC165-_registerInterface-bytes4-[`_registerInterface(bytes4)`]: check out example usage as part of the ERC721 implementation. +* xref:api:utils.adoc#ERC165Checker[`ERC165Checker`] — ERC165Checker simplifies the process of checking whether or not a contract supports an interface you care about. +* include with `using ERC165Checker for address;` +* xref:api:utils.adoc#ERC165Checker-_supportsInterface-address-bytes4-[`myAddress._supportsInterface(bytes4)`] +* xref:api:utils.adoc#ERC165Checker-_supportsAllInterfaces-address-bytes4---[`myAddress._supportsAllInterfaces(bytes4[\])`] + +[source,solidity] +---- +contract MyContract { + using ERC165Checker for address; + + bytes4 private InterfaceId_ERC721 = 0x80ac58cd; + + /** + * @dev transfer an ERC721 token from this contract to someone else + */ + function transferERC721( + address token, + address to, + uint256 tokenId + ) + public + { + require(token.supportsInterface(InterfaceId_ERC721), "IS_NOT_721_TOKEN"); + IERC721(token).transferFrom(address(this), to, tokenId); + } +} +---- + +[[math]] +== Math + +The most popular math related library OpenZeppelin Contracts provides is xref:api:utils.adoc#SafeMath[`SafeMath`], which provides mathematical functions that protect your contract from overflows and underflows. + +Include the contract with `using SafeMath for uint256;` and then call the functions: + +* `myNumber.add(otherNumber)` +* `myNumber.sub(otherNumber)` +* `myNumber.div(otherNumber)` +* `myNumber.mul(otherNumber)` +* `myNumber.mod(otherNumber)` + +Easy! + +[[payment]] +== Payment + +Want to split some payments between multiple people? Maybe you have an app that sends 30% of art purchases to the original creator and 70% of the profits to the current owner; you can build that with xref:api:finance.adoc#PaymentSplitter[`PaymentSplitter`]! + +In Solidity, there are some security concerns with blindly sending money to accounts, since it allows them to execute arbitrary code. You can read up on these security concerns in the https://consensys.github.io/smart-contract-best-practices/[Ethereum Smart Contract Best Practices] website. One of the ways to fix reentrancy and stalling problems is, instead of immediately sending Ether to accounts that need it, you can use xref:api:security.adoc#PullPayment[`PullPayment`], which offers an xref:api:security.adoc#PullPayment-_asyncTransfer-address-uint256-[`_asyncTransfer`] function for sending money to something and requesting that they xref:api:security.adoc#PullPayment-withdrawPayments-address-payable-[`withdrawPayments()`] it later. + +If you want to Escrow some funds, check out xref:api:utils.adoc#Escrow[`Escrow`] and xref:api:utils.adoc#ConditionalEscrow[`ConditionalEscrow`] for governing the release of some escrowed Ether. + +[[collections]] +== Collections + +If you need support for more powerful collections than Solidity's native arrays and mappings, take a look at xref:api:utils.adoc#EnumerableSet[`EnumerableSet`] and xref:api:utils.adoc#EnumerableMap[`EnumerableMap`]. They are similar to mappings in that they store and remove elements in constant time and don't allow for repeated entries, but they also support _enumeration_, which means you can easily query all stored entries both on and off-chain. + +[[misc]] +== Misc + +Want to check if an address is a contract? Use xref:api:utils.adoc#Address[`Address`] and xref:api:utils.adoc#Address-isContract-address-[`Address.isContract()`]. + +Want to keep track of some numbers that increment by 1 every time you want another one? Check out xref:api:utils.adoc#Counters[`Counters`]. This is useful for lots of things, like creating incremental identifiers, as shown on the xref:erc721.adoc[ERC721 guide]. + +=== Base64 + +xref:api:utils.adoc#Base64[`Base64`] util allows you to transform `bytes32` data into its Base64 `string` representation. + +This is especially useful for building URL-safe tokenURIs for both xref:api:token/ERC721.adoc#IERC721Metadata-tokenURI-uint256-[`ERC721`] or xref:api:token/ERC1155.adoc#IERC1155MetadataURI-uri-uint256-[`ERC1155`]. This library provides a clever way to serve URL-safe https://developer.mozilla.org/docs/Web/HTTP/Basics_of_HTTP/Data_URIs/[Data URI] compliant strings to serve on-chain data structures. + +Here is an example to send JSON Metadata through a Base64 Data URI using an ERC721: + +[source, solidity] +---- +// contracts/My721Token.sol +// SPDX-License-Identifier: MIT + +import "@openzeppelin/contracts/token/ERC721/ERC721.sol"; +import "@openzeppelin/contracts/utils/Strings.sol"; +import "@openzeppelin/contracts/utils/Base64.sol"; + +contract My721Token is ERC721 { + using Strings for uint256; + + constructor() ERC721("My721Token", "MTK") {} + + ... + + function tokenURI(uint256 tokenId) + public + pure + override + returns (string memory) + { + bytes memory dataURI = abi.encodePacked( + '{', + '"name": "My721Token #', tokenId.toString(), '"', + // Replace with extra ERC721 Metadata properties + '}' + ); + + return string( + abi.encodePacked( + "data:application/json;base64,", + Base64.encode(dataURI) + ) + ); + } +} +---- + +=== Multicall + +The `Multicall` abstract contract comes with a `multicall` function that bundles together multiple calls in a single external call. With it, external accounts may perform atomic operations comprising several function calls. This is not only useful for EOAs to make multiple calls in a single transaction, it's also a way to revert a previous call if a later one fails. + +Consider this dummy contract: + +[source,solidity] +---- +// contracts/Box.sol +// SPDX-License-Identifier: MIT +pragma solidity ^0.8.0; + +import "@openzeppelin/contracts/utils/Multicall.sol"; + +contract Box is Multicall { + function foo() public { + ... + } + + function bar() public { + ... + } +} +---- + +This is how to call the `multicall` function using Truffle, allowing `foo` and `bar` to be called in a single transaction: +[source,javascript] +---- +// scripts/foobar.js + +const Box = artifacts.require('Box'); +const instance = await Box.new(); + +await instance.multicall([ + instance.contract.methods.foo().encodeABI(), + instance.contract.methods.bar().encodeABI() +]); +---- diff --git a/lib/openzeppelin-contracts/docs/modules/ROOT/pages/wizard.adoc b/lib/openzeppelin-contracts/docs/modules/ROOT/pages/wizard.adoc new file mode 100644 index 0000000..2625053 --- /dev/null +++ b/lib/openzeppelin-contracts/docs/modules/ROOT/pages/wizard.adoc @@ -0,0 +1,15 @@ += Contracts Wizard +:page-notoc: + +Not sure where to start? Use the interactive generator below to bootstrap your +contract and learn about the components offered in OpenZeppelin Contracts. + +TIP: Place the resulting contract in your `contracts` directory in order to compile it with a tool like Hardhat or Truffle. Consider reading our guide on xref:learn::developing-smart-contracts.adoc[Developing Smart Contracts] for more guidance! + +++++ + + + +++++ + + diff --git a/lib/openzeppelin-contracts/docs/templates/contract.hbs b/lib/openzeppelin-contracts/docs/templates/contract.hbs new file mode 100644 index 0000000..d97e7fd --- /dev/null +++ b/lib/openzeppelin-contracts/docs/templates/contract.hbs @@ -0,0 +1,85 @@ +{{#each items}} +:{{name}}: pass:normal[xref:#{{anchor}}[`++{{name}}++`]] +{{/each}} + +[.contract] +[[{{anchor}}]] +=== `++{{name}}++` link:https://github.com/OpenZeppelin/openzeppelin-contracts/blob/v{{oz-version}}/{{__item_context.file.absolutePath}}[{github-icon},role=heading-link] + +[.hljs-theme-light.nopadding] +```solidity +import "@openzeppelin/{{__item_context.file.absolutePath}}"; +``` + +{{{natspec.dev}}} + +{{#if modifiers}} +[.contract-index] +.Modifiers +-- +{{#each modifiers}} +* {xref-{{anchor~}} }[`++{{name}}({{names params}})++`] +{{/each}} +-- +{{/if}} + +{{#if has-functions}} +[.contract-index] +.Functions +-- +{{#each inherited-functions}} +{{#unless @first}} +[.contract-subindex-inherited] +.{{contract.name}} +{{/unless}} +{{#each functions}} +* {xref-{{anchor~}} }[`++{{name}}({{names params}})++`] +{{/each}} + +{{/each}} +-- +{{/if}} + +{{#if has-events}} +[.contract-index] +.Events +-- +{{#each inheritance}} +{{#unless @first}} +[.contract-subindex-inherited] +.{{name}} +{{/unless}} +{{#each events}} +* {xref-{{anchor~}} }[`++{{name}}({{names params}})++`] +{{/each}} + +{{/each}} +-- +{{/if}} + +{{#each modifiers}} +[.contract-item] +[[{{anchor}}]] +==== `[.contract-item-name]#++{{name}}++#++({{typed-params params}})++` [.item-kind]#modifier# + +{{{natspec.dev}}} + +{{/each}} + +{{#each functions}} +[.contract-item] +[[{{anchor}}]] +==== `[.contract-item-name]#++{{name}}++#++({{typed-params params}}){{#if returns}} → {{typed-params returns}}{{/if}}++` [.item-kind]#{{visibility}}# + +{{{natspec.dev}}} + +{{/each}} + +{{#each events}} +[.contract-item] +[[{{anchor}}]] +==== `[.contract-item-name]#++{{name}}++#++({{typed-params params}})++` [.item-kind]#event# + +{{{natspec.dev}}} + +{{/each}} diff --git a/lib/openzeppelin-contracts/docs/templates/helpers.js b/lib/openzeppelin-contracts/docs/templates/helpers.js new file mode 100644 index 0000000..65f168e --- /dev/null +++ b/lib/openzeppelin-contracts/docs/templates/helpers.js @@ -0,0 +1,46 @@ +const { version } = require('../../package.json'); + +module.exports['oz-version'] = () => version; + +module.exports['readme-path'] = opts => { + return 'contracts/' + opts.data.root.id.replace(/\.adoc$/, '') + '/README.adoc'; +}; + +module.exports.names = params => params.map(p => p.name).join(', '); + +module.exports['typed-params'] = params => { + return params?.map(p => `${p.type}${p.indexed ? ' indexed' : ''}${p.name ? ' ' + p.name : ''}`).join(', '); +}; + +const slug = (module.exports.slug = str => { + if (str === undefined) { + throw new Error('Missing argument'); + } + return str.replace(/\W/g, '-'); +}); + +const linksCache = new WeakMap(); + +function getAllLinks(items) { + if (linksCache.has(items)) { + return linksCache.get(items); + } + const res = {}; + linksCache.set(items, res); + for (const item of items) { + res[`xref-${item.anchor}`] = `xref:${item.__item_context.page}#${item.anchor}`; + res[slug(item.fullName)] = `pass:normal[xref:${item.__item_context.page}#${item.anchor}[\`${item.fullName}\`]]`; + } + return res; +} + +module.exports['with-prelude'] = opts => { + const links = getAllLinks(opts.data.site.items); + const contents = opts.fn(); + const neededLinks = contents + .match(/\{[-._a-z0-9]+\}/gi) + .map(m => m.replace(/^\{(.+)\}$/, '$1')) + .filter(k => k in links); + const prelude = neededLinks.map(k => `:${k}: ${links[k]}`).join('\n'); + return prelude + '\n' + contents; +}; diff --git a/lib/openzeppelin-contracts/docs/templates/page.hbs b/lib/openzeppelin-contracts/docs/templates/page.hbs new file mode 100644 index 0000000..cab050a --- /dev/null +++ b/lib/openzeppelin-contracts/docs/templates/page.hbs @@ -0,0 +1,4 @@ +:github-icon: pass:[] +{{#with-prelude}} +{{readme (readme-path)}} +{{/with-prelude}} diff --git a/lib/openzeppelin-contracts/docs/templates/properties.js b/lib/openzeppelin-contracts/docs/templates/properties.js new file mode 100644 index 0000000..99bdf88 --- /dev/null +++ b/lib/openzeppelin-contracts/docs/templates/properties.js @@ -0,0 +1,45 @@ +const { isNodeType } = require('solidity-ast/utils'); +const { slug } = require('./helpers'); + +module.exports.anchor = function anchor({ item, contract }) { + let res = ''; + if (contract) { + res += contract.name + '-'; + } + res += item.name; + if ('parameters' in item) { + const signature = item.parameters.parameters.map(v => v.typeName.typeDescriptions.typeString).join(','); + res += slug('(' + signature + ')'); + } + if (isNodeType('VariableDeclaration', item)) { + res += '-' + slug(item.typeName.typeDescriptions.typeString); + } + return res; +}; + +module.exports.inheritance = function ({ item, build }) { + if (!isNodeType('ContractDefinition', item)) { + throw new Error('used inherited-items on non-contract'); + } + + return item.linearizedBaseContracts + .map(id => build.deref('ContractDefinition', id)) + .filter((c, i) => c.name !== 'Context' || i === 0); +}; + +module.exports['has-functions'] = function ({ item }) { + return item.inheritance.some(c => c.functions.length > 0); +}; + +module.exports['has-events'] = function ({ item }) { + return item.inheritance.some(c => c.events.length > 0); +}; + +module.exports['inherited-functions'] = function ({ item }) { + const { inheritance } = item; + const baseFunctions = new Set(inheritance.flatMap(c => c.functions.flatMap(f => f.baseFunctions ?? []))); + return inheritance.map((contract, i) => ({ + contract, + functions: contract.functions.filter(f => !baseFunctions.has(f.id) && (f.name !== 'constructor' || i === 0)), + })); +}; diff --git a/lib/openzeppelin-contracts/foundry.toml b/lib/openzeppelin-contracts/foundry.toml new file mode 100644 index 0000000..c0da487 --- /dev/null +++ b/lib/openzeppelin-contracts/foundry.toml @@ -0,0 +1,3 @@ +[fuzz] +runs = 10000 +max_test_rejects = 100000 diff --git a/lib/openzeppelin-contracts/hardhat.config.js b/lib/openzeppelin-contracts/hardhat.config.js new file mode 100644 index 0000000..74f40c4 --- /dev/null +++ b/lib/openzeppelin-contracts/hardhat.config.js @@ -0,0 +1,113 @@ +/// ENVVAR +// - CI: output gas report to file instead of stdout +// - COVERAGE: enable coverage report +// - ENABLE_GAS_REPORT: enable gas report +// - COMPILE_MODE: production modes enables optimizations (default: development) +// - COMPILE_VERSION: compiler version (default: 0.8.9) +// - COINMARKETCAP: coinmarkercat api key for USD value in gas report + +const fs = require('fs'); +const path = require('path'); +const argv = require('yargs/yargs')() + .env('') + .options({ + coverage: { + type: 'boolean', + default: false, + }, + gas: { + alias: 'enableGasReport', + type: 'boolean', + default: false, + }, + gasReport: { + alias: 'enableGasReportPath', + type: 'string', + implies: 'gas', + default: undefined, + }, + mode: { + alias: 'compileMode', + type: 'string', + choices: ['production', 'development'], + default: 'development', + }, + ir: { + alias: 'enableIR', + type: 'boolean', + default: false, + }, + compiler: { + alias: 'compileVersion', + type: 'string', + default: '0.8.13', + }, + coinmarketcap: { + alias: 'coinmarketcapApiKey', + type: 'string', + }, + }).argv; + +require('@nomiclabs/hardhat-truffle5'); +require('hardhat-ignore-warnings'); +require('hardhat-exposed'); + +require('solidity-docgen'); + +for (const f of fs.readdirSync(path.join(__dirname, 'hardhat'))) { + require(path.join(__dirname, 'hardhat', f)); +} + +const withOptimizations = argv.gas || argv.compileMode === 'production'; + +/** + * @type import('hardhat/config').HardhatUserConfig + */ +module.exports = { + solidity: { + version: argv.compiler, + settings: { + optimizer: { + enabled: withOptimizations, + runs: 200, + }, + viaIR: withOptimizations && argv.ir, + }, + }, + warnings: { + '*': { + 'code-size': withOptimizations, + 'unused-param': !argv.coverage, // coverage causes unused-param warnings + default: 'error', + }, + }, + networks: { + hardhat: { + blockGasLimit: 10000000, + allowUnlimitedContractSize: !withOptimizations, + }, + }, + exposed: { + exclude: [ + 'vendor/**/*', + // overflow clash + 'utils/Timers.sol', + ], + }, + docgen: require('./docs/config'), +}; + +if (argv.gas) { + require('hardhat-gas-reporter'); + module.exports.gasReporter = { + showMethodSig: true, + currency: 'USD', + outputFile: argv.gasReport, + coinmarketcap: argv.coinmarketcap, + }; +} + +if (argv.coverage) { + require('solidity-coverage'); + module.exports.networks.hardhat.initialBaseFeePerGas = 0; +} diff --git a/lib/openzeppelin-contracts/hardhat/env-contract.js b/lib/openzeppelin-contracts/hardhat/env-contract.js new file mode 100644 index 0000000..74d54cf --- /dev/null +++ b/lib/openzeppelin-contracts/hardhat/env-contract.js @@ -0,0 +1,10 @@ +extendEnvironment(env => { + const { contract } = env; + + env.contract = function (name, body) { + // remove the default account from the accounts list used in tests, in order + // to protect tests against accidentally passing due to the contract + // deployer being used subsequently as function caller + contract(name, accounts => body(accounts.slice(1))); + }; +}); diff --git a/lib/openzeppelin-contracts/hardhat/ignore-unreachable-warnings.js b/lib/openzeppelin-contracts/hardhat/ignore-unreachable-warnings.js new file mode 100644 index 0000000..8e3e343 --- /dev/null +++ b/lib/openzeppelin-contracts/hardhat/ignore-unreachable-warnings.js @@ -0,0 +1,45 @@ +// Warnings about unreachable code are emitted with a source location that corresponds to the unreachable code. +// We have some testing contracts that purposely cause unreachable code, but said code is in the library contracts, and +// with hardhat-ignore-warnings we are not able to selectively ignore them without potentially ignoring relevant +// warnings that we don't want to miss. +// Thus, we need to handle these warnings separately. We force Hardhat to compile them in a separate compilation job and +// then ignore the warnings about unreachable code that come from that compilation job. + +const { task } = require('hardhat/config'); +const { + TASK_COMPILE_SOLIDITY_GET_COMPILATION_JOB_FOR_FILE, + TASK_COMPILE_SOLIDITY_COMPILE, +} = require('hardhat/builtin-tasks/task-names'); + +const marker = Symbol('unreachable'); +const markedCache = new WeakMap(); + +task(TASK_COMPILE_SOLIDITY_GET_COMPILATION_JOB_FOR_FILE, async (params, _, runSuper) => { + const job = await runSuper(params); + // If the file is in the unreachable directory, we make a copy of the config and mark it, which will cause it to get + // compiled separately (along with the other marked files). + if (params.file.sourceName.startsWith('contracts/mocks/') && /\bunreachable\b/.test(params.file.sourceName)) { + const originalConfig = job.solidityConfig; + let markedConfig = markedCache.get(originalConfig); + if (markedConfig === undefined) { + markedConfig = { ...originalConfig, [marker]: true }; + markedCache.set(originalConfig, markedConfig); + } + job.solidityConfig = markedConfig; + } + return job; +}); + +const W_UNREACHABLE_CODE = '5740'; + +task(TASK_COMPILE_SOLIDITY_COMPILE, async (params, _, runSuper) => { + const marked = params.compilationJob.solidityConfig[marker]; + const result = await runSuper(params); + if (marked) { + result.output = { + ...result.output, + errors: result.output.errors?.filter(e => e.severity !== 'warning' || e.errorCode !== W_UNREACHABLE_CODE), + }; + } + return result; +}); diff --git a/lib/openzeppelin-contracts/hardhat/skip-foundry-tests.js b/lib/openzeppelin-contracts/hardhat/skip-foundry-tests.js new file mode 100644 index 0000000..965ba37 --- /dev/null +++ b/lib/openzeppelin-contracts/hardhat/skip-foundry-tests.js @@ -0,0 +1,6 @@ +const { subtask } = require('hardhat/config'); +const { TASK_COMPILE_SOLIDITY_GET_SOURCE_PATHS } = require('hardhat/builtin-tasks/task-names'); + +subtask(TASK_COMPILE_SOLIDITY_GET_SOURCE_PATHS).setAction(async (_, __, runSuper) => + (await runSuper()).filter(path => !path.endsWith('.t.sol')), +); diff --git a/lib/openzeppelin-contracts/lib/erc4626-tests/ERC4626.prop.sol b/lib/openzeppelin-contracts/lib/erc4626-tests/ERC4626.prop.sol new file mode 100644 index 0000000..c34512b --- /dev/null +++ b/lib/openzeppelin-contracts/lib/erc4626-tests/ERC4626.prop.sol @@ -0,0 +1,404 @@ +// SPDX-License-Identifier: AGPL-3.0 +pragma solidity >=0.8.0 <0.9.0; + +import "forge-std/Test.sol"; + +// TODO: use interface provided by forge-std v1.0.0 or later +// import {IERC20} from "forge-std/interfaces/IERC20.sol"; +interface IERC20 { + event Transfer(address indexed from, address indexed to, uint value); + event Approval(address indexed owner, address indexed spender, uint value); + function totalSupply() external view returns (uint); + function balanceOf(address account) external view returns (uint); + function transfer(address to, uint amount) external returns (bool); + function allowance(address owner, address spender) external view returns (uint); + function approve(address spender, uint amount) external returns (bool); + function transferFrom(address from, address to, uint amount) external returns (bool); +} + +// TODO: use interface provided by forge-std v1.0.0 or later +// import {IERC4626} from "forge-std/interfaces/IERC4626.sol"; +interface IERC4626 is IERC20 { + event Deposit(address indexed caller, address indexed owner, uint assets, uint shares); + event Withdraw(address indexed caller, address indexed receiver, address indexed owner, uint assets, uint shares); + function asset() external view returns (address assetTokenAddress); + function totalAssets() external view returns (uint totalManagedAssets); + function convertToShares(uint assets) external view returns (uint shares); + function convertToAssets(uint shares) external view returns (uint assets); + function maxDeposit(address receiver) external view returns (uint maxAssets); + function previewDeposit(uint assets) external view returns (uint shares); + function deposit(uint assets, address receiver) external returns (uint shares); + function maxMint(address receiver) external view returns (uint maxShares); + function previewMint(uint shares) external view returns (uint assets); + function mint(uint shares, address receiver) external returns (uint assets); + function maxWithdraw(address owner) external view returns (uint maxAssets); + function previewWithdraw(uint assets) external view returns (uint shares); + function withdraw(uint assets, address receiver, address owner) external returns (uint shares); + function maxRedeem(address owner) external view returns (uint maxShares); + function previewRedeem(uint shares) external view returns (uint assets); + function redeem(uint shares, address receiver, address owner) external returns (uint assets); +} + +abstract contract ERC4626Prop is Test { + uint internal _delta_; + + address internal _underlying_; + address internal _vault_; + + bool internal _vaultMayBeEmpty; + bool internal _unlimitedAmount; + + // + // asset + // + + // asset + // "MUST NOT revert." + function prop_asset(address caller) public { + vm.prank(caller); IERC4626(_vault_).asset(); + } + + // totalAssets + // "MUST NOT revert." + function prop_totalAssets(address caller) public { + vm.prank(caller); IERC4626(_vault_).totalAssets(); + } + + // + // convert + // + + // convertToShares + // "MUST NOT show any variations depending on the caller." + function prop_convertToShares(address caller1, address caller2, uint assets) public { + vm.prank(caller1); uint res1 = vault_convertToShares(assets); // "MAY revert due to integer overflow caused by an unreasonably large input." + vm.prank(caller2); uint res2 = vault_convertToShares(assets); // "MAY revert due to integer overflow caused by an unreasonably large input." + assertEq(res1, res2); + } + + // convertToAssets + // "MUST NOT show any variations depending on the caller." + function prop_convertToAssets(address caller1, address caller2, uint shares) public { + vm.prank(caller1); uint res1 = vault_convertToAssets(shares); // "MAY revert due to integer overflow caused by an unreasonably large input." + vm.prank(caller2); uint res2 = vault_convertToAssets(shares); // "MAY revert due to integer overflow caused by an unreasonably large input." + assertEq(res1, res2); + } + + // + // deposit + // + + // maxDeposit + // "MUST NOT revert." + function prop_maxDeposit(address caller, address receiver) public { + vm.prank(caller); IERC4626(_vault_).maxDeposit(receiver); + } + + // previewDeposit + // "MUST return as close to and no more than the exact amount of Vault + // shares that would be minted in a deposit call in the same transaction. + // I.e. deposit should return the same or more shares as previewDeposit if + // called in the same transaction." + function prop_previewDeposit(address caller, address receiver, address other, uint assets) public { + vm.prank(other); uint sharesPreview = vault_previewDeposit(assets); // "MAY revert due to other conditions that would also cause deposit to revert." + vm.prank(caller); uint sharesActual = vault_deposit(assets, receiver); + assertApproxGeAbs(sharesActual, sharesPreview, _delta_); + } + + // deposit + function prop_deposit(address caller, address receiver, uint assets) public { + uint oldCallerAsset = IERC20(_underlying_).balanceOf(caller); + uint oldReceiverShare = IERC20(_vault_).balanceOf(receiver); + uint oldAllowance = IERC20(_underlying_).allowance(caller, _vault_); + + vm.prank(caller); uint shares = vault_deposit(assets, receiver); + + uint newCallerAsset = IERC20(_underlying_).balanceOf(caller); + uint newReceiverShare = IERC20(_vault_).balanceOf(receiver); + uint newAllowance = IERC20(_underlying_).allowance(caller, _vault_); + + assertApproxEqAbs(newCallerAsset, oldCallerAsset - assets, _delta_, "asset"); // NOTE: this may fail if the caller is a contract in which the asset is stored + assertApproxEqAbs(newReceiverShare, oldReceiverShare + shares, _delta_, "share"); + if (oldAllowance != type(uint).max) assertApproxEqAbs(newAllowance, oldAllowance - assets, _delta_, "allowance"); + } + + // + // mint + // + + // maxMint + // "MUST NOT revert." + function prop_maxMint(address caller, address receiver) public { + vm.prank(caller); IERC4626(_vault_).maxMint(receiver); + } + + // previewMint + // "MUST return as close to and no fewer than the exact amount of assets + // that would be deposited in a mint call in the same transaction. I.e. mint + // should return the same or fewer assets as previewMint if called in the + // same transaction." + function prop_previewMint(address caller, address receiver, address other, uint shares) public { + vm.prank(other); uint assetsPreview = vault_previewMint(shares); + vm.prank(caller); uint assetsActual = vault_mint(shares, receiver); + assertApproxLeAbs(assetsActual, assetsPreview, _delta_); + } + + // mint + function prop_mint(address caller, address receiver, uint shares) public { + uint oldCallerAsset = IERC20(_underlying_).balanceOf(caller); + uint oldReceiverShare = IERC20(_vault_).balanceOf(receiver); + uint oldAllowance = IERC20(_underlying_).allowance(caller, _vault_); + + vm.prank(caller); uint assets = vault_mint(shares, receiver); + + uint newCallerAsset = IERC20(_underlying_).balanceOf(caller); + uint newReceiverShare = IERC20(_vault_).balanceOf(receiver); + uint newAllowance = IERC20(_underlying_).allowance(caller, _vault_); + + assertApproxEqAbs(newCallerAsset, oldCallerAsset - assets, _delta_, "asset"); // NOTE: this may fail if the caller is a contract in which the asset is stored + assertApproxEqAbs(newReceiverShare, oldReceiverShare + shares, _delta_, "share"); + if (oldAllowance != type(uint).max) assertApproxEqAbs(newAllowance, oldAllowance - assets, _delta_, "allowance"); + } + + // + // withdraw + // + + // maxWithdraw + // "MUST NOT revert." + // NOTE: some implementations failed due to arithmetic overflow + function prop_maxWithdraw(address caller, address owner) public { + vm.prank(caller); IERC4626(_vault_).maxWithdraw(owner); + } + + // previewWithdraw + // "MUST return as close to and no fewer than the exact amount of Vault + // shares that would be burned in a withdraw call in the same transaction. + // I.e. withdraw should return the same or fewer shares as previewWithdraw + // if called in the same transaction." + function prop_previewWithdraw(address caller, address receiver, address owner, address other, uint assets) public { + vm.prank(other); uint preview = vault_previewWithdraw(assets); + vm.prank(caller); uint actual = vault_withdraw(assets, receiver, owner); + assertApproxLeAbs(actual, preview, _delta_); + } + + // withdraw + function prop_withdraw(address caller, address receiver, address owner, uint assets) public { + uint oldReceiverAsset = IERC20(_underlying_).balanceOf(receiver); + uint oldOwnerShare = IERC20(_vault_).balanceOf(owner); + uint oldAllowance = IERC20(_vault_).allowance(owner, caller); + + vm.prank(caller); uint shares = vault_withdraw(assets, receiver, owner); + + uint newReceiverAsset = IERC20(_underlying_).balanceOf(receiver); + uint newOwnerShare = IERC20(_vault_).balanceOf(owner); + uint newAllowance = IERC20(_vault_).allowance(owner, caller); + + assertApproxEqAbs(newOwnerShare, oldOwnerShare - shares, _delta_, "share"); + assertApproxEqAbs(newReceiverAsset, oldReceiverAsset + assets, _delta_, "asset"); // NOTE: this may fail if the receiver is a contract in which the asset is stored + if (caller != owner && oldAllowance != type(uint).max) assertApproxEqAbs(newAllowance, oldAllowance - shares, _delta_, "allowance"); + + assertTrue(caller == owner || oldAllowance != 0 || (shares == 0 && assets == 0), "access control"); + } + + // + // redeem + // + + // maxRedeem + // "MUST NOT revert." + function prop_maxRedeem(address caller, address owner) public { + vm.prank(caller); IERC4626(_vault_).maxRedeem(owner); + } + + // previewRedeem + // "MUST return as close to and no more than the exact amount of assets that + // would be withdrawn in a redeem call in the same transaction. I.e. redeem + // should return the same or more assets as previewRedeem if called in the + // same transaction." + function prop_previewRedeem(address caller, address receiver, address owner, address other, uint shares) public { + vm.prank(other); uint preview = vault_previewRedeem(shares); + vm.prank(caller); uint actual = vault_redeem(shares, receiver, owner); + assertApproxGeAbs(actual, preview, _delta_); + } + + // redeem + function prop_redeem(address caller, address receiver, address owner, uint shares) public { + uint oldReceiverAsset = IERC20(_underlying_).balanceOf(receiver); + uint oldOwnerShare = IERC20(_vault_).balanceOf(owner); + uint oldAllowance = IERC20(_vault_).allowance(owner, caller); + + vm.prank(caller); uint assets = vault_redeem(shares, receiver, owner); + + uint newReceiverAsset = IERC20(_underlying_).balanceOf(receiver); + uint newOwnerShare = IERC20(_vault_).balanceOf(owner); + uint newAllowance = IERC20(_vault_).allowance(owner, caller); + + assertApproxEqAbs(newOwnerShare, oldOwnerShare - shares, _delta_, "share"); + assertApproxEqAbs(newReceiverAsset, oldReceiverAsset + assets, _delta_, "asset"); // NOTE: this may fail if the receiver is a contract in which the asset is stored + if (caller != owner && oldAllowance != type(uint).max) assertApproxEqAbs(newAllowance, oldAllowance - shares, _delta_, "allowance"); + + assertTrue(caller == owner || oldAllowance != 0 || (shares == 0 && assets == 0), "access control"); + } + + // + // round trip properties + // + + // redeem(deposit(a)) <= a + function prop_RT_deposit_redeem(address caller, uint assets) public { + if (!_vaultMayBeEmpty) vm.assume(IERC20(_vault_).totalSupply() > 0); + vm.prank(caller); uint shares = vault_deposit(assets, caller); + vm.prank(caller); uint assets2 = vault_redeem(shares, caller, caller); + assertApproxLeAbs(assets2, assets, _delta_); + } + + // s = deposit(a) + // s' = withdraw(a) + // s' >= s + function prop_RT_deposit_withdraw(address caller, uint assets) public { + if (!_vaultMayBeEmpty) vm.assume(IERC20(_vault_).totalSupply() > 0); + vm.prank(caller); uint shares1 = vault_deposit(assets, caller); + vm.prank(caller); uint shares2 = vault_withdraw(assets, caller, caller); + assertApproxGeAbs(shares2, shares1, _delta_); + } + + // deposit(redeem(s)) <= s + function prop_RT_redeem_deposit(address caller, uint shares) public { + vm.prank(caller); uint assets = vault_redeem(shares, caller, caller); + if (!_vaultMayBeEmpty) vm.assume(IERC20(_vault_).totalSupply() > 0); + vm.prank(caller); uint shares2 = vault_deposit(assets, caller); + assertApproxLeAbs(shares2, shares, _delta_); + } + + // a = redeem(s) + // a' = mint(s) + // a' >= a + function prop_RT_redeem_mint(address caller, uint shares) public { + vm.prank(caller); uint assets1 = vault_redeem(shares, caller, caller); + if (!_vaultMayBeEmpty) vm.assume(IERC20(_vault_).totalSupply() > 0); + vm.prank(caller); uint assets2 = vault_mint(shares, caller); + assertApproxGeAbs(assets2, assets1, _delta_); + } + + // withdraw(mint(s)) >= s + function prop_RT_mint_withdraw(address caller, uint shares) public { + if (!_vaultMayBeEmpty) vm.assume(IERC20(_vault_).totalSupply() > 0); + vm.prank(caller); uint assets = vault_mint(shares, caller); + vm.prank(caller); uint shares2 = vault_withdraw(assets, caller, caller); + assertApproxGeAbs(shares2, shares, _delta_); + } + + // a = mint(s) + // a' = redeem(s) + // a' <= a + function prop_RT_mint_redeem(address caller, uint shares) public { + if (!_vaultMayBeEmpty) vm.assume(IERC20(_vault_).totalSupply() > 0); + vm.prank(caller); uint assets1 = vault_mint(shares, caller); + vm.prank(caller); uint assets2 = vault_redeem(shares, caller, caller); + assertApproxLeAbs(assets2, assets1, _delta_); + } + + // mint(withdraw(a)) >= a + function prop_RT_withdraw_mint(address caller, uint assets) public { + vm.prank(caller); uint shares = vault_withdraw(assets, caller, caller); + if (!_vaultMayBeEmpty) vm.assume(IERC20(_vault_).totalSupply() > 0); + vm.prank(caller); uint assets2 = vault_mint(shares, caller); + assertApproxGeAbs(assets2, assets, _delta_); + } + + // s = withdraw(a) + // s' = deposit(a) + // s' <= s + function prop_RT_withdraw_deposit(address caller, uint assets) public { + vm.prank(caller); uint shares1 = vault_withdraw(assets, caller, caller); + if (!_vaultMayBeEmpty) vm.assume(IERC20(_vault_).totalSupply() > 0); + vm.prank(caller); uint shares2 = vault_deposit(assets, caller); + assertApproxLeAbs(shares2, shares1, _delta_); + } + + // + // utils + // + + function vault_convertToShares(uint assets) internal returns (uint) { + return _call_vault(abi.encodeWithSelector(IERC4626.convertToShares.selector, assets)); + } + function vault_convertToAssets(uint shares) internal returns (uint) { + return _call_vault(abi.encodeWithSelector(IERC4626.convertToAssets.selector, shares)); + } + + function vault_maxDeposit(address receiver) internal returns (uint) { + return _call_vault(abi.encodeWithSelector(IERC4626.maxDeposit.selector, receiver)); + } + function vault_maxMint(address receiver) internal returns (uint) { + return _call_vault(abi.encodeWithSelector(IERC4626.maxMint.selector, receiver)); + } + function vault_maxWithdraw(address owner) internal returns (uint) { + return _call_vault(abi.encodeWithSelector(IERC4626.maxWithdraw.selector, owner)); + } + function vault_maxRedeem(address owner) internal returns (uint) { + return _call_vault(abi.encodeWithSelector(IERC4626.maxRedeem.selector, owner)); + } + + function vault_previewDeposit(uint assets) internal returns (uint) { + return _call_vault(abi.encodeWithSelector(IERC4626.previewDeposit.selector, assets)); + } + function vault_previewMint(uint shares) internal returns (uint) { + return _call_vault(abi.encodeWithSelector(IERC4626.previewMint.selector, shares)); + } + function vault_previewWithdraw(uint assets) internal returns (uint) { + return _call_vault(abi.encodeWithSelector(IERC4626.previewWithdraw.selector, assets)); + } + function vault_previewRedeem(uint shares) internal returns (uint) { + return _call_vault(abi.encodeWithSelector(IERC4626.previewRedeem.selector, shares)); + } + + function vault_deposit(uint assets, address receiver) internal returns (uint) { + return _call_vault(abi.encodeWithSelector(IERC4626.deposit.selector, assets, receiver)); + } + function vault_mint(uint shares, address receiver) internal returns (uint) { + return _call_vault(abi.encodeWithSelector(IERC4626.mint.selector, shares, receiver)); + } + function vault_withdraw(uint assets, address receiver, address owner) internal returns (uint) { + return _call_vault(abi.encodeWithSelector(IERC4626.withdraw.selector, assets, receiver, owner)); + } + function vault_redeem(uint shares, address receiver, address owner) internal returns (uint) { + return _call_vault(abi.encodeWithSelector(IERC4626.redeem.selector, shares, receiver, owner)); + } + + function _call_vault(bytes memory data) internal returns (uint) { + (bool success, bytes memory retdata) = _vault_.call(data); + if (success) return abi.decode(retdata, (uint)); + vm.assume(false); // if reverted, discard the current fuzz inputs, and let the fuzzer to start a new fuzz run + return 0; // silence warning + } + + function assertApproxGeAbs(uint a, uint b, uint maxDelta) internal { + if (!(a >= b)) { + uint dt = b - a; + if (dt > maxDelta) { + emit log ("Error: a >=~ b not satisfied [uint]"); + emit log_named_uint (" Value a", a); + emit log_named_uint (" Value b", b); + emit log_named_uint (" Max Delta", maxDelta); + emit log_named_uint (" Delta", dt); + fail(); + } + } + } + + function assertApproxLeAbs(uint a, uint b, uint maxDelta) internal { + if (!(a <= b)) { + uint dt = a - b; + if (dt > maxDelta) { + emit log ("Error: a <=~ b not satisfied [uint]"); + emit log_named_uint (" Value a", a); + emit log_named_uint (" Value b", b); + emit log_named_uint (" Max Delta", maxDelta); + emit log_named_uint (" Delta", dt); + fail(); + } + } + } +} diff --git a/lib/openzeppelin-contracts/lib/erc4626-tests/ERC4626.test.sol b/lib/openzeppelin-contracts/lib/erc4626-tests/ERC4626.test.sol new file mode 100644 index 0000000..6254a05 --- /dev/null +++ b/lib/openzeppelin-contracts/lib/erc4626-tests/ERC4626.test.sol @@ -0,0 +1,349 @@ +// SPDX-License-Identifier: AGPL-3.0 +pragma solidity >=0.8.0 <0.9.0; + +import "./ERC4626.prop.sol"; + +interface IMockERC20 is IERC20 { + function mint(address to, uint value) external; + function burn(address from, uint value) external; +} + +abstract contract ERC4626Test is ERC4626Prop { + function setUp() public virtual; + + uint constant N = 4; + + struct Init { + address[N] user; + uint[N] share; + uint[N] asset; + int yield; + } + + // setup initial vault state as follows: + // + // totalAssets == sum(init.share) + init.yield + // totalShares == sum(init.share) + // + // init.user[i]'s assets == init.asset[i] + // init.user[i]'s shares == init.share[i] + function setUpVault(Init memory init) public virtual { + // setup initial shares and assets for individual users + for (uint i = 0; i < N; i++) { + address user = init.user[i]; + vm.assume(_isEOA(user)); + // shares + uint shares = init.share[i]; + try IMockERC20(_underlying_).mint(user, shares) {} catch { vm.assume(false); } + _approve(_underlying_, user, _vault_, shares); + vm.prank(user); try IERC4626(_vault_).deposit(shares, user) {} catch { vm.assume(false); } + // assets + uint assets = init.asset[i]; + try IMockERC20(_underlying_).mint(user, assets) {} catch { vm.assume(false); } + } + + // setup initial yield for vault + setUpYield(init); + } + + // setup initial yield + function setUpYield(Init memory init) public virtual { + if (init.yield >= 0) { // gain + uint gain = uint(init.yield); + try IMockERC20(_underlying_).mint(_vault_, gain) {} catch { vm.assume(false); } // this can be replaced by calling yield generating functions if provided by the vault + } else { // loss + vm.assume(init.yield > type(int).min); // avoid overflow in conversion + uint loss = uint(-1 * init.yield); + try IMockERC20(_underlying_).burn(_vault_, loss) {} catch { vm.assume(false); } // this can be replaced by calling yield generating functions if provided by the vault + } + } + + // + // asset + // + + function test_asset(Init memory init) public virtual { + setUpVault(init); + address caller = init.user[0]; + prop_asset(caller); + } + + function test_totalAssets(Init memory init) public virtual { + setUpVault(init); + address caller = init.user[0]; + prop_totalAssets(caller); + } + + // + // convert + // + + function test_convertToShares(Init memory init, uint assets) public virtual { + setUpVault(init); + address caller1 = init.user[0]; + address caller2 = init.user[1]; + prop_convertToShares(caller1, caller2, assets); + } + + function test_convertToAssets(Init memory init, uint shares) public virtual { + setUpVault(init); + address caller1 = init.user[0]; + address caller2 = init.user[1]; + prop_convertToAssets(caller1, caller2, shares); + } + + // + // deposit + // + + function test_maxDeposit(Init memory init) public virtual { + setUpVault(init); + address caller = init.user[0]; + address receiver = init.user[1]; + prop_maxDeposit(caller, receiver); + } + + function test_previewDeposit(Init memory init, uint assets) public virtual { + setUpVault(init); + address caller = init.user[0]; + address receiver = init.user[1]; + address other = init.user[2]; + assets = bound(assets, 0, _max_deposit(caller)); + _approve(_underlying_, caller, _vault_, type(uint).max); + prop_previewDeposit(caller, receiver, other, assets); + } + + function test_deposit(Init memory init, uint assets, uint allowance) public virtual { + setUpVault(init); + address caller = init.user[0]; + address receiver = init.user[1]; + assets = bound(assets, 0, _max_deposit(caller)); + _approve(_underlying_, caller, _vault_, allowance); + prop_deposit(caller, receiver, assets); + } + + // + // mint + // + + function test_maxMint(Init memory init) public virtual { + setUpVault(init); + address caller = init.user[0]; + address receiver = init.user[1]; + prop_maxMint(caller, receiver); + } + + function test_previewMint(Init memory init, uint shares) public virtual { + setUpVault(init); + address caller = init.user[0]; + address receiver = init.user[1]; + address other = init.user[2]; + shares = bound(shares, 0, _max_mint(caller)); + _approve(_underlying_, caller, _vault_, type(uint).max); + prop_previewMint(caller, receiver, other, shares); + } + + function test_mint(Init memory init, uint shares, uint allowance) public virtual { + setUpVault(init); + address caller = init.user[0]; + address receiver = init.user[1]; + shares = bound(shares, 0, _max_mint(caller)); + _approve(_underlying_, caller, _vault_, allowance); + prop_mint(caller, receiver, shares); + } + + // + // withdraw + // + + function test_maxWithdraw(Init memory init) public virtual { + setUpVault(init); + address caller = init.user[0]; + address owner = init.user[1]; + prop_maxWithdraw(caller, owner); + } + + function test_previewWithdraw(Init memory init, uint assets) public virtual { + setUpVault(init); + address caller = init.user[0]; + address receiver = init.user[1]; + address owner = init.user[2]; + address other = init.user[3]; + assets = bound(assets, 0, _max_withdraw(owner)); + _approve(_vault_, owner, caller, type(uint).max); + prop_previewWithdraw(caller, receiver, owner, other, assets); + } + + function test_withdraw(Init memory init, uint assets, uint allowance) public virtual { + setUpVault(init); + address caller = init.user[0]; + address receiver = init.user[1]; + address owner = init.user[2]; + assets = bound(assets, 0, _max_withdraw(owner)); + _approve(_vault_, owner, caller, allowance); + prop_withdraw(caller, receiver, owner, assets); + } + + function testFail_withdraw(Init memory init, uint assets) public virtual { + setUpVault(init); + address caller = init.user[0]; + address receiver = init.user[1]; + address owner = init.user[2]; + assets = bound(assets, 0, _max_withdraw(owner)); + vm.assume(caller != owner); + vm.assume(assets > 0); + _approve(_vault_, owner, caller, 0); + vm.prank(caller); uint shares = IERC4626(_vault_).withdraw(assets, receiver, owner); + assertGt(shares, 0); // this assert is expected to fail + } + + // + // redeem + // + + function test_maxRedeem(Init memory init) public virtual { + setUpVault(init); + address caller = init.user[0]; + address owner = init.user[1]; + prop_maxRedeem(caller, owner); + } + + function test_previewRedeem(Init memory init, uint shares) public virtual { + setUpVault(init); + address caller = init.user[0]; + address receiver = init.user[1]; + address owner = init.user[2]; + address other = init.user[3]; + shares = bound(shares, 0, _max_redeem(owner)); + _approve(_vault_, owner, caller, type(uint).max); + prop_previewRedeem(caller, receiver, owner, other, shares); + } + + function test_redeem(Init memory init, uint shares, uint allowance) public virtual { + setUpVault(init); + address caller = init.user[0]; + address receiver = init.user[1]; + address owner = init.user[2]; + shares = bound(shares, 0, _max_redeem(owner)); + _approve(_vault_, owner, caller, allowance); + prop_redeem(caller, receiver, owner, shares); + } + + function testFail_redeem(Init memory init, uint shares) public virtual { + setUpVault(init); + address caller = init.user[0]; + address receiver = init.user[1]; + address owner = init.user[2]; + shares = bound(shares, 0, _max_redeem(owner)); + vm.assume(caller != owner); + vm.assume(shares > 0); + _approve(_vault_, owner, caller, 0); + vm.prank(caller); IERC4626(_vault_).redeem(shares, receiver, owner); + } + + // + // round trip tests + // + + function test_RT_deposit_redeem(Init memory init, uint assets) public virtual { + setUpVault(init); + address caller = init.user[0]; + assets = bound(assets, 0, _max_deposit(caller)); + _approve(_underlying_, caller, _vault_, type(uint).max); + prop_RT_deposit_redeem(caller, assets); + } + + function test_RT_deposit_withdraw(Init memory init, uint assets) public virtual { + setUpVault(init); + address caller = init.user[0]; + assets = bound(assets, 0, _max_deposit(caller)); + _approve(_underlying_, caller, _vault_, type(uint).max); + prop_RT_deposit_withdraw(caller, assets); + } + + function test_RT_redeem_deposit(Init memory init, uint shares) public virtual { + setUpVault(init); + address caller = init.user[0]; + shares = bound(shares, 0, _max_redeem(caller)); + _approve(_underlying_, caller, _vault_, type(uint).max); + prop_RT_redeem_deposit(caller, shares); + } + + function test_RT_redeem_mint(Init memory init, uint shares) public virtual { + setUpVault(init); + address caller = init.user[0]; + shares = bound(shares, 0, _max_redeem(caller)); + _approve(_underlying_, caller, _vault_, type(uint).max); + prop_RT_redeem_mint(caller, shares); + } + + function test_RT_mint_withdraw(Init memory init, uint shares) public virtual { + setUpVault(init); + address caller = init.user[0]; + shares = bound(shares, 0, _max_mint(caller)); + _approve(_underlying_, caller, _vault_, type(uint).max); + prop_RT_mint_withdraw(caller, shares); + } + + function test_RT_mint_redeem(Init memory init, uint shares) public virtual { + setUpVault(init); + address caller = init.user[0]; + shares = bound(shares, 0, _max_mint(caller)); + _approve(_underlying_, caller, _vault_, type(uint).max); + prop_RT_mint_redeem(caller, shares); + } + + function test_RT_withdraw_mint(Init memory init, uint assets) public virtual { + setUpVault(init); + address caller = init.user[0]; + assets = bound(assets, 0, _max_withdraw(caller)); + _approve(_underlying_, caller, _vault_, type(uint).max); + prop_RT_withdraw_mint(caller, assets); + } + + function test_RT_withdraw_deposit(Init memory init, uint assets) public virtual { + setUpVault(init); + address caller = init.user[0]; + assets = bound(assets, 0, _max_withdraw(caller)); + _approve(_underlying_, caller, _vault_, type(uint).max); + prop_RT_withdraw_deposit(caller, assets); + } + + // + // utils + // + + function _isContract(address account) internal view returns (bool) { return account.code.length > 0; } + function _isEOA (address account) internal view returns (bool) { return account.code.length == 0; } + + function _approve(address token, address owner, address spender, uint amount) internal { + vm.prank(owner); _safeApprove(token, spender, 0); + vm.prank(owner); _safeApprove(token, spender, amount); + } + + function _safeApprove(address token, address spender, uint amount) internal { + (bool success, bytes memory retdata) = token.call(abi.encodeWithSelector(IERC20.approve.selector, spender, amount)); + vm.assume(success); + if (retdata.length > 0) vm.assume(abi.decode(retdata, (bool))); + } + + function _max_deposit(address from) internal virtual returns (uint) { + if (_unlimitedAmount) return type(uint).max; + return IERC20(_underlying_).balanceOf(from); + } + + function _max_mint(address from) internal virtual returns (uint) { + if (_unlimitedAmount) return type(uint).max; + return vault_convertToShares(IERC20(_underlying_).balanceOf(from)); + } + + function _max_withdraw(address from) internal virtual returns (uint) { + if (_unlimitedAmount) return type(uint).max; + return vault_convertToAssets(IERC20(_vault_).balanceOf(from)); // may be different from maxWithdraw(from) + } + + function _max_redeem(address from) internal virtual returns (uint) { + if (_unlimitedAmount) return type(uint).max; + return IERC20(_vault_).balanceOf(from); // may be different from maxRedeem(from) + } +} diff --git a/lib/openzeppelin-contracts/lib/erc4626-tests/LICENSE b/lib/openzeppelin-contracts/lib/erc4626-tests/LICENSE new file mode 100644 index 0000000..0ad25db --- /dev/null +++ b/lib/openzeppelin-contracts/lib/erc4626-tests/LICENSE @@ -0,0 +1,661 @@ + GNU AFFERO GENERAL PUBLIC LICENSE + Version 3, 19 November 2007 + + Copyright (C) 2007 Free Software Foundation, Inc. + Everyone is permitted to copy and distribute verbatim copies + of this license document, but changing it is not allowed. + + Preamble + + The GNU Affero General Public License is a free, copyleft license for +software and other kinds of works, specifically designed to ensure +cooperation with the community in the case of network server software. + + The licenses for most software and other practical works are designed +to take away your freedom to share and change the works. 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There are many ways you could offer source, and different +solutions will be better for different programs; see section 13 for the +specific requirements. + + You should also get your employer (if you work as a programmer) or school, +if any, to sign a "copyright disclaimer" for the program, if necessary. +For more information on this, and how to apply and follow the GNU AGPL, see +. diff --git a/lib/openzeppelin-contracts/lib/erc4626-tests/README.md b/lib/openzeppelin-contracts/lib/erc4626-tests/README.md new file mode 100644 index 0000000..651e443 --- /dev/null +++ b/lib/openzeppelin-contracts/lib/erc4626-tests/README.md @@ -0,0 +1,116 @@ +# ERC4626 Property Tests + +Foundry (dapptools-style) property-based tests for [ERC4626] standard conformance. + +[ERC4626]: + +You can read our post on "_[Generalized property tests for ERC4626 vaults][post]_." + +[post]: + +## Overview + +#### What is it? +- Test suites for checking if the given ERC4626 implementation satisfies the **standard requirements**. +- Dapptools-style **property-based tests** for fuzzing or symbolic execution testing. +- Tests that are **independent** from implementation details, thus applicable for any ERC4626 vaults. + +#### What isn’t it? +- It does NOT test implementation-specific details, e.g., how to generate and distribute yields, how to compute the share price, etc. + +#### Testing properties: + +- **Round-trip properties**: no one can make a free profit by depositing and immediately withdrawing back and forth. + +- **Functional correctness**: the `deposit()`, `mint()`, `withdraw()`, and `redeem()` functions update the balance and allowance properly. + +- The `preview{Deposit,Redeem}()` functions **MUST NOT over-estimate** the exact amount.[^1] + +[^1]: That is, the `deposit()` and `redeem()` functions “MUST return the same or more amounts as their preview function if called in the same transaction.” + +- The `preview{Mint,Withdraw}()` functions **MUST NOT under-estimate** the exact amount.[^2] + +[^2]: That is, the `mint()` and `withdraw()` functions “MUST return the same or fewer amounts as their preview function if called in the same transaction.” + +- The `convertTo{Shares,Assets}` functions “**MUST NOT show any variations** depending on the caller.” + +- The `asset()`, `totalAssets()`, and `max{Deposit,Mint,Withdraw,Redeem}()` functions “**MUST NOT revert**.” + +## Usage + +**Step 0**: Install [foundry] and add [forge-std] in your vault repo: +```bash +$ curl -L https://foundry.paradigm.xyz | bash + +$ cd /path/to/your-erc4626-vault +$ forge install foundry-rs/forge-std +``` + +[foundry]: +[forge-std]: + +**Step 1**: Add this [erc4626-tests] as a dependency to your vault: +```bash +$ cd /path/to/your-erc4626-vault +$ forge install a16z/erc4626-tests +``` + +[erc4626-tests]: + +**Step 2**: Extend the abstract test contract [`ERC4626Test`](ERC4626.test.sol) with your own custom vault setup method, for example: + +```solidity +// SPDX-License-Identifier: AGPL-3.0 +pragma solidity >=0.8.0 <0.9.0; + +import "erc4626-tests/ERC4626.test.sol"; + +import { ERC20Mock } from "/path/to/mocks/ERC20Mock.sol"; +import { ERC4626Mock } from "/path/to/mocks/ERC4626Mock.sol"; + +contract ERC4626StdTest is ERC4626Test { + function setUp() public override { + _underlying_ = address(new ERC20Mock("Mock ERC20", "MERC20", 18)); + _vault_ = address(new ERC4626Mock(ERC20Mock(__underlying__), "Mock ERC4626", "MERC4626")); + _delta_ = 0; + _vaultMayBeEmpty = false; + _unlimitedAmount = false; + } +} +``` + +Specifically, set the state variables as follows: +- `_vault_`: the address of your ERC4626 vault. +- `_underlying_`: the address of the underlying asset of your vault. Note that the default `setupVault()` and `setupYield()` methods of `ERC4626Test` assume that it implements `mint(address to, uint value)` and `burn(address from, uint value)`. You can override the setup methods with your own if such `mint()` and `burn()` are not implemented. +- `_delta_`: the maximum approximation error size to be passed to [`assertApproxEqAbs()`]. It must be given as an absolute value (not a percentage) in the smallest unit (e.g., Wei or Satoshi). Note that all the tests are expected to pass with `__delta__ == 0` as long as your vault follows the [preferred rounding direction] as specified in the standard. If your vault doesn't follow the preferred rounding direction, you can set `__delta__` to a reasonable size of rounding errors where the adversarial profit of exploiting such rounding errors stays sufficiently small compared to the gas cost. (You can read our [post] for more about the adversarial profit.) +- `_vaultMayBeEmpty`: when set to false, fuzz inputs that empties the vault are ignored. +- `_unlimitedAmount`: when set to false, fuzz inputs are restricted to the currently available amount from the caller. Limiting the amount can speed up fuzzing, but may miss some edge cases. + +[`assertApproxEqAbs()`]: + +[preferred rounding direction]: + +**Step 3**: Run `forge test` + +``` +$ forge test +``` + +## Examples + +Below are examples of adding these property tests to existing ERC4626 vaults: +- [OpenZeppelin ERC4626] [[diff](https://github.com/daejunpark/openzeppelin-contracts/pull/1/files)] +- [Solmate ERC4626] [[diff](https://github.com/daejunpark/solmate/pull/1/files)] +- [Revenue Distribution Token] [[diff](https://github.com/daejunpark/revenue-distribution-token/pull/1/files)] +- [Yield Daddy ERC4626 wrappers] [[diff](https://github.com/daejunpark/yield-daddy/pull/1/files)][^bug] + +[OpenZeppelin ERC4626]: +[Solmate ERC4626]: +[Revenue Distribution Token]: +[Yield Daddy ERC4626 wrappers]: + +[^bug]: Our property tests indeed revealed an [issue](https://github.com/timeless-fi/yield-daddy/issues/7) in their eToken testing mock contract. The tests passed after it is [fixed](https://github.com/daejunpark/yield-daddy/commit/721cf4bd766805fd409455434aa5fd1a9b2df25c). + +## Disclaimer + +_These smart contracts are being provided as is. No guarantee, representation or warranty is being made, express or implied, as to the safety or correctness of the user interface or the smart contracts. They have not been audited and as such there can be no assurance they will work as intended, and users may experience delays, failures, errors, omissions or loss of transmitted information. THE SMART CONTRACTS CONTAINED HEREIN ARE FURNISHED AS IS, WHERE IS, WITH ALL FAULTS AND WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING ANY WARRANTY OF MERCHANTABILITY, NON-INFRINGEMENT OR FITNESS FOR ANY PARTICULAR PURPOSE. Further, use of any of these smart contracts may be restricted or prohibited under applicable law, including securities laws, and it is therefore strongly advised for you to contact a reputable attorney in any jurisdiction where these smart contracts may be accessible for any questions or concerns with respect thereto. Further, no information provided in this repo should be construed as investment advice or legal advice for any particular facts or circumstances, and is not meant to replace competent counsel. a16z is not liable for any use of the foregoing, and users should proceed with caution and use at their own risk. See a16z.com/disclosures for more info._ diff --git a/lib/openzeppelin-contracts/lib/forge-std/.github/workflows/ci.yml b/lib/openzeppelin-contracts/lib/forge-std/.github/workflows/ci.yml new file mode 100644 index 0000000..96b2336 --- /dev/null +++ b/lib/openzeppelin-contracts/lib/forge-std/.github/workflows/ci.yml @@ -0,0 +1,92 @@ +name: CI + +on: + workflow_dispatch: + pull_request: + push: + branches: + - master + +jobs: + build: + runs-on: ubuntu-latest + steps: + - uses: actions/checkout@v3 + + - name: Install Foundry + uses: onbjerg/foundry-toolchain@v1 + with: + version: nightly + + - name: Print forge version + run: forge --version + + # Backwards compatibility checks. + - name: Check compatibility with 0.8.0 + if: always() + run: forge build --skip test --use solc:0.8.0 + + - name: Check compatibility with 0.7.6 + if: always() + run: forge build --skip test --use solc:0.7.6 + + - name: Check compatibility with 0.7.0 + if: always() + run: forge build --skip test --use solc:0.7.0 + + - name: Check compatibility with 0.6.12 + if: always() + run: forge build --skip test --use solc:0.6.12 + + - name: Check compatibility with 0.6.2 + if: always() + run: forge build --skip test --use solc:0.6.2 + + # via-ir compilation time checks. + - name: Measure compilation time of Test with 0.8.17 --via-ir + if: always() + run: forge build --skip test --contracts test/compilation/CompilationTest.sol --use solc:0.8.17 --via-ir + + - name: Measure compilation time of TestBase with 0.8.17 --via-ir + if: always() + run: forge build --skip test --contracts test/compilation/CompilationTestBase.sol --use solc:0.8.17 --via-ir + + - name: Measure compilation time of Script with 0.8.17 --via-ir + if: always() + run: forge build --skip test --contracts test/compilation/CompilationScript.sol --use solc:0.8.17 --via-ir + + - name: Measure compilation time of ScriptBase with 0.8.17 --via-ir + if: always() + run: forge build --skip test --contracts test/compilation/CompilationScriptBase.sol --use solc:0.8.17 --via-ir + + test: + runs-on: ubuntu-latest + steps: + - uses: actions/checkout@v3 + + - name: Install Foundry + uses: onbjerg/foundry-toolchain@v1 + with: + version: nightly + + - name: Print forge version + run: forge --version + + - name: Run tests + run: forge test -vvv + + fmt: + runs-on: ubuntu-latest + steps: + - uses: actions/checkout@v3 + + - name: Install Foundry + uses: onbjerg/foundry-toolchain@v1 + with: + version: nightly + + - name: Print forge version + run: forge --version + + - name: Check formatting + run: forge fmt --check diff --git a/lib/openzeppelin-contracts/lib/forge-std/.gitignore b/lib/openzeppelin-contracts/lib/forge-std/.gitignore new file mode 100644 index 0000000..756106d --- /dev/null +++ b/lib/openzeppelin-contracts/lib/forge-std/.gitignore @@ -0,0 +1,4 @@ +cache/ +out/ +.vscode +.idea diff --git a/lib/openzeppelin-contracts/lib/forge-std/.gitmodules b/lib/openzeppelin-contracts/lib/forge-std/.gitmodules new file mode 100644 index 0000000..e124719 --- /dev/null +++ b/lib/openzeppelin-contracts/lib/forge-std/.gitmodules @@ -0,0 +1,3 @@ +[submodule "lib/ds-test"] + path = lib/ds-test + url = https://github.com/dapphub/ds-test diff --git a/lib/openzeppelin-contracts/lib/forge-std/LICENSE-APACHE b/lib/openzeppelin-contracts/lib/forge-std/LICENSE-APACHE new file mode 100644 index 0000000..cf01a49 --- /dev/null +++ b/lib/openzeppelin-contracts/lib/forge-std/LICENSE-APACHE @@ -0,0 +1,203 @@ +Copyright Contributors to Forge Standard Library + + Apache License + Version 2.0, January 2004 + http://www.apache.org/licenses/ + +TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION + +1. 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IN NO EVENT +SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY +CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION +OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR +IN CONNECTION WITH THE SOFTWARE O THE USE OR OTHER +DEALINGS IN THE SOFTWARE.R diff --git a/lib/openzeppelin-contracts/lib/forge-std/README.md b/lib/openzeppelin-contracts/lib/forge-std/README.md new file mode 100644 index 0000000..8494a7d --- /dev/null +++ b/lib/openzeppelin-contracts/lib/forge-std/README.md @@ -0,0 +1,250 @@ +# Forge Standard Library • [![CI status](https://github.com/foundry-rs/forge-std/actions/workflows/ci.yml/badge.svg)](https://github.com/foundry-rs/forge-std/actions/workflows/ci.yml) + +Forge Standard Library is a collection of helpful contracts and libraries for use with [Forge and Foundry](https://github.com/foundry-rs/foundry). It leverages Forge's cheatcodes to make writing tests easier and faster, while improving the UX of cheatcodes. + +**Learn how to use Forge-Std with the [📖 Foundry Book (Forge-Std Guide)](https://book.getfoundry.sh/forge/forge-std.html).** + +## Install + +```bash +forge install foundry-rs/forge-std +``` + +## Contracts +### stdError + +This is a helper contract for errors and reverts. In Forge, this contract is particularly helpful for the `expectRevert` cheatcode, as it provides all compiler builtin errors. + +See the contract itself for all error codes. + +#### Example usage + +```solidity + +import "forge-std/Test.sol"; + +contract TestContract is Test { + ErrorsTest test; + + function setUp() public { + test = new ErrorsTest(); + } + + function testExpectArithmetic() public { + vm.expectRevert(stdError.arithmeticError); + test.arithmeticError(10); + } +} + +contract ErrorsTest { + function arithmeticError(uint256 a) public { + uint256 a = a - 100; + } +} +``` + +### stdStorage + +This is a rather large contract due to all of the overloading to make the UX decent. Primarily, it is a wrapper around the `record` and `accesses` cheatcodes. It can *always* find and write the storage slot(s) associated with a particular variable without knowing the storage layout. The one _major_ caveat to this is while a slot can be found for packed storage variables, we can't write to that variable safely. If a user tries to write to a packed slot, the execution throws an error, unless it is uninitialized (`bytes32(0)`). + +This works by recording all `SLOAD`s and `SSTORE`s during a function call. If there is a single slot read or written to, it immediately returns the slot. Otherwise, behind the scenes, we iterate through and check each one (assuming the user passed in a `depth` parameter). If the variable is a struct, you can pass in a `depth` parameter which is basically the field depth. + +I.e.: +```solidity +struct T { + // depth 0 + uint256 a; + // depth 1 + uint256 b; +} +``` + +#### Example usage + +```solidity +import "forge-std/Test.sol"; + +contract TestContract is Test { + using stdStorage for StdStorage; + + Storage test; + + function setUp() public { + test = new Storage(); + } + + function testFindExists() public { + // Lets say we want to find the slot for the public + // variable `exists`. We just pass in the function selector + // to the `find` command + uint256 slot = stdstore.target(address(test)).sig("exists()").find(); + assertEq(slot, 0); + } + + function testWriteExists() public { + // Lets say we want to write to the slot for the public + // variable `exists`. We just pass in the function selector + // to the `checked_write` command + stdstore.target(address(test)).sig("exists()").checked_write(100); + assertEq(test.exists(), 100); + } + + // It supports arbitrary storage layouts, like assembly based storage locations + function testFindHidden() public { + // `hidden` is a random hash of a bytes, iteration through slots would + // not find it. Our mechanism does + // Also, you can use the selector instead of a string + uint256 slot = stdstore.target(address(test)).sig(test.hidden.selector).find(); + assertEq(slot, uint256(keccak256("my.random.var"))); + } + + // If targeting a mapping, you have to pass in the keys necessary to perform the find + // i.e.: + function testFindMapping() public { + uint256 slot = stdstore + .target(address(test)) + .sig(test.map_addr.selector) + .with_key(address(this)) + .find(); + // in the `Storage` constructor, we wrote that this address' value was 1 in the map + // so when we load the slot, we expect it to be 1 + assertEq(uint(vm.load(address(test), bytes32(slot))), 1); + } + + // If the target is a struct, you can specify the field depth: + function testFindStruct() public { + // NOTE: see the depth parameter - 0 means 0th field, 1 means 1st field, etc. + uint256 slot_for_a_field = stdstore + .target(address(test)) + .sig(test.basicStruct.selector) + .depth(0) + .find(); + + uint256 slot_for_b_field = stdstore + .target(address(test)) + .sig(test.basicStruct.selector) + .depth(1) + .find(); + + assertEq(uint(vm.load(address(test), bytes32(slot_for_a_field))), 1); + assertEq(uint(vm.load(address(test), bytes32(slot_for_b_field))), 2); + } +} + +// A complex storage contract +contract Storage { + struct UnpackedStruct { + uint256 a; + uint256 b; + } + + constructor() { + map_addr[msg.sender] = 1; + } + + uint256 public exists = 1; + mapping(address => uint256) public map_addr; + // mapping(address => Packed) public map_packed; + mapping(address => UnpackedStruct) public map_struct; + mapping(address => mapping(address => uint256)) public deep_map; + mapping(address => mapping(address => UnpackedStruct)) public deep_map_struct; + UnpackedStruct public basicStruct = UnpackedStruct({ + a: 1, + b: 2 + }); + + function hidden() public view returns (bytes32 t) { + // an extremely hidden storage slot + bytes32 slot = keccak256("my.random.var"); + assembly { + t := sload(slot) + } + } +} +``` + +### stdCheats + +This is a wrapper over miscellaneous cheatcodes that need wrappers to be more dev friendly. Currently there are only functions related to `prank`. In general, users may expect ETH to be put into an address on `prank`, but this is not the case for safety reasons. Explicitly this `hoax` function should only be used for address that have expected balances as it will get overwritten. If an address already has ETH, you should just use `prank`. If you want to change that balance explicitly, just use `deal`. If you want to do both, `hoax` is also right for you. + + +#### Example usage: +```solidity + +// SPDX-License-Identifier: MIT +pragma solidity ^0.8.0; + +import "forge-std/Test.sol"; + +// Inherit the stdCheats +contract StdCheatsTest is Test { + Bar test; + function setUp() public { + test = new Bar(); + } + + function testHoax() public { + // we call `hoax`, which gives the target address + // eth and then calls `prank` + hoax(address(1337)); + test.bar{value: 100}(address(1337)); + + // overloaded to allow you to specify how much eth to + // initialize the address with + hoax(address(1337), 1); + test.bar{value: 1}(address(1337)); + } + + function testStartHoax() public { + // we call `startHoax`, which gives the target address + // eth and then calls `startPrank` + // + // it is also overloaded so that you can specify an eth amount + startHoax(address(1337)); + test.bar{value: 100}(address(1337)); + test.bar{value: 100}(address(1337)); + vm.stopPrank(); + test.bar(address(this)); + } +} + +contract Bar { + function bar(address expectedSender) public payable { + require(msg.sender == expectedSender, "!prank"); + } +} +``` + +### Std Assertions + +Expand upon the assertion functions from the `DSTest` library. + +### `console.log` + +Usage follows the same format as [Hardhat](https://hardhat.org/hardhat-network/reference/#console-log). +It's recommended to use `console2.sol` as shown below, as this will show the decoded logs in Forge traces. + +```solidity +// import it indirectly via Test.sol +import "forge-std/Test.sol"; +// or directly import it +import "forge-std/console2.sol"; +... +console2.log(someValue); +``` + +If you need compatibility with Hardhat, you must use the standard `console.sol` instead. +Due to a bug in `console.sol`, logs that use `uint256` or `int256` types will not be properly decoded in Forge traces. + +```solidity +// import it indirectly via Test.sol +import "forge-std/Test.sol"; +// or directly import it +import "forge-std/console.sol"; +... +console.log(someValue); +``` + +## License + +Forge Standard Library is offered under either [MIT](LICENSE-MIT) or [Apache 2.0](LICENSE-APACHE) license. diff --git a/lib/openzeppelin-contracts/lib/forge-std/foundry.toml b/lib/openzeppelin-contracts/lib/forge-std/foundry.toml new file mode 100644 index 0000000..cca8301 --- /dev/null +++ b/lib/openzeppelin-contracts/lib/forge-std/foundry.toml @@ -0,0 +1,21 @@ +[profile.default] +fs_permissions = [{ access = "read-write", path = "./"}] + +[rpc_endpoints] +# The RPC URLs are modified versions of the default for testing initialization. +mainnet = "https://mainnet.infura.io/v3/7a8769b798b642f6933f2ed52042bd70" # Different API key. +optimism_goerli = "https://goerli.optimism.io/" # Adds a trailing slash. +arbitrum_one_goerli = "https://goerli-rollup.arbitrum.io/rpc/" # Adds a trailing slash. +needs_undefined_env_var = "${UNDEFINED_RPC_URL_PLACEHOLDER}" + +[fmt] +# These are all the `forge fmt` defaults. +line_length = 120 +tab_width = 4 +bracket_spacing = false +int_types = 'long' +multiline_func_header = 'attributes_first' +quote_style = 'double' +number_underscore = 'preserve' +single_line_statement_blocks = 'preserve' +ignore = ["src/console.sol", "src/console2.sol"] \ No newline at end of file diff --git a/lib/openzeppelin-contracts/lib/forge-std/lib/ds-test/.gitignore b/lib/openzeppelin-contracts/lib/forge-std/lib/ds-test/.gitignore new file mode 100644 index 0000000..63f0b2c --- /dev/null +++ b/lib/openzeppelin-contracts/lib/forge-std/lib/ds-test/.gitignore @@ -0,0 +1,3 @@ +/.dapple +/build +/out diff --git a/lib/openzeppelin-contracts/lib/forge-std/lib/ds-test/LICENSE b/lib/openzeppelin-contracts/lib/forge-std/lib/ds-test/LICENSE new file mode 100644 index 0000000..94a9ed0 --- /dev/null +++ b/lib/openzeppelin-contracts/lib/forge-std/lib/ds-test/LICENSE @@ -0,0 +1,674 @@ + GNU GENERAL PUBLIC LICENSE + Version 3, 29 June 2007 + + Copyright (C) 2007 Free Software Foundation, Inc. + Everyone is permitted to copy and distribute verbatim copies + of this license document, but changing it is not allowed. + + Preamble + + The GNU General Public License is a free, copyleft license for +software and other kinds of works. + + The licenses for most software and other practical works are designed +to take away your freedom to share and change the works. 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But first, please read +. diff --git a/lib/openzeppelin-contracts/lib/forge-std/lib/ds-test/Makefile b/lib/openzeppelin-contracts/lib/forge-std/lib/ds-test/Makefile new file mode 100644 index 0000000..661dac4 --- /dev/null +++ b/lib/openzeppelin-contracts/lib/forge-std/lib/ds-test/Makefile @@ -0,0 +1,14 @@ +all:; dapp build + +test: + -dapp --use solc:0.4.23 build + -dapp --use solc:0.4.26 build + -dapp --use solc:0.5.17 build + -dapp --use solc:0.6.12 build + -dapp --use solc:0.7.5 build + +demo: + DAPP_SRC=demo dapp --use solc:0.7.5 build + -hevm dapp-test --verbose 3 + +.PHONY: test demo diff --git a/lib/openzeppelin-contracts/lib/forge-std/lib/ds-test/default.nix b/lib/openzeppelin-contracts/lib/forge-std/lib/ds-test/default.nix new file mode 100644 index 0000000..cf65419 --- /dev/null +++ b/lib/openzeppelin-contracts/lib/forge-std/lib/ds-test/default.nix @@ -0,0 +1,4 @@ +{ solidityPackage, dappsys }: solidityPackage { + name = "ds-test"; + src = ./src; +} diff --git a/lib/openzeppelin-contracts/lib/forge-std/lib/ds-test/demo/demo.sol b/lib/openzeppelin-contracts/lib/forge-std/lib/ds-test/demo/demo.sol new file mode 100644 index 0000000..f3bb48e --- /dev/null +++ b/lib/openzeppelin-contracts/lib/forge-std/lib/ds-test/demo/demo.sol @@ -0,0 +1,222 @@ +// SPDX-License-Identifier: GPL-3.0-or-later +pragma solidity >=0.5.0; + +import "../src/test.sol"; + +contract DemoTest is DSTest { + function test_this() public pure { + require(true); + } + function test_logs() public { + emit log("-- log(string)"); + emit log("a string"); + + emit log("-- log_named_uint(string, uint)"); + emit log_named_uint("uint", 512); + + emit log("-- log_named_int(string, int)"); + emit log_named_int("int", -512); + + emit log("-- log_named_address(string, address)"); + emit log_named_address("address", address(this)); + + emit log("-- log_named_bytes32(string, bytes32)"); + emit log_named_bytes32("bytes32", "a string"); + + emit log("-- log_named_bytes(string, bytes)"); + emit log_named_bytes("bytes", hex"cafefe"); + + emit log("-- log_named_string(string, string)"); + emit log_named_string("string", "a string"); + + emit log("-- log_named_decimal_uint(string, uint, uint)"); + emit log_named_decimal_uint("decimal uint", 1.0e18, 18); + + emit log("-- log_named_decimal_int(string, int, uint)"); + emit log_named_decimal_int("decimal int", -1.0e18, 18); + } + event log_old_named_uint(bytes32,uint); + function test_old_logs() public { + emit log_old_named_uint("key", 500); + emit log_named_bytes32("bkey", "val"); + } + function test_trace() public view { + this.echo("string 1", "string 2"); + } + function test_multiline() public { + emit log("a multiline\\nstring"); + emit log("a multiline string"); + emit log_bytes("a string"); + emit log_bytes("a multiline\nstring"); + emit log_bytes("a multiline\\nstring"); + emit logs(hex"0000"); + emit log_named_bytes("0x0000", hex"0000"); + emit logs(hex"ff"); + } + function echo(string memory s1, string memory s2) public pure + returns (string memory, string memory) + { + return (s1, s2); + } + + function prove_this(uint x) public { + emit log_named_uint("sym x", x); + assertGt(x + 1, 0); + } + + function test_logn() public { + assembly { + log0(0x01, 0x02) + log1(0x01, 0x02, 0x03) + log2(0x01, 0x02, 0x03, 0x04) + log3(0x01, 0x02, 0x03, 0x04, 0x05) + } + } + + event MyEvent(uint, uint indexed, uint, uint indexed); + function test_events() public { + emit MyEvent(1, 2, 3, 4); + } + + function test_asserts() public { + string memory err = "this test has failed!"; + emit log("## assertTrue(bool)\n"); + assertTrue(false); + emit log("\n"); + assertTrue(false, err); + + emit log("\n## assertEq(address,address)\n"); + assertEq(address(this), msg.sender); + emit log("\n"); + assertEq(address(this), msg.sender, err); + + emit log("\n## assertEq32(bytes32,bytes32)\n"); + assertEq32("bytes 1", "bytes 2"); + emit log("\n"); + assertEq32("bytes 1", "bytes 2", err); + + emit log("\n## assertEq(bytes32,bytes32)\n"); + assertEq32("bytes 1", "bytes 2"); + emit log("\n"); + assertEq32("bytes 1", "bytes 2", err); + + emit log("\n## assertEq(uint,uint)\n"); + assertEq(uint(0), 1); + emit log("\n"); + assertEq(uint(0), 1, err); + + emit log("\n## assertEq(int,int)\n"); + assertEq(-1, -2); + emit log("\n"); + assertEq(-1, -2, err); + + emit log("\n## assertEqDecimal(int,int,uint)\n"); + assertEqDecimal(-1.0e18, -1.1e18, 18); + emit log("\n"); + assertEqDecimal(-1.0e18, -1.1e18, 18, err); + + emit log("\n## assertEqDecimal(uint,uint,uint)\n"); + assertEqDecimal(uint(1.0e18), 1.1e18, 18); + emit log("\n"); + assertEqDecimal(uint(1.0e18), 1.1e18, 18, err); + + emit log("\n## assertGt(uint,uint)\n"); + assertGt(uint(0), 0); + emit log("\n"); + assertGt(uint(0), 0, err); + + emit log("\n## assertGt(int,int)\n"); + assertGt(-1, -1); + emit log("\n"); + assertGt(-1, -1, err); + + emit log("\n## assertGtDecimal(int,int,uint)\n"); + assertGtDecimal(-2.0e18, -1.1e18, 18); + emit log("\n"); + assertGtDecimal(-2.0e18, -1.1e18, 18, err); + + emit log("\n## assertGtDecimal(uint,uint,uint)\n"); + assertGtDecimal(uint(1.0e18), 1.1e18, 18); + emit log("\n"); + assertGtDecimal(uint(1.0e18), 1.1e18, 18, err); + + emit log("\n## assertGe(uint,uint)\n"); + assertGe(uint(0), 1); + emit log("\n"); + assertGe(uint(0), 1, err); + + emit log("\n## assertGe(int,int)\n"); + assertGe(-1, 0); + emit log("\n"); + assertGe(-1, 0, err); + + emit log("\n## assertGeDecimal(int,int,uint)\n"); + assertGeDecimal(-2.0e18, -1.1e18, 18); + emit log("\n"); + assertGeDecimal(-2.0e18, -1.1e18, 18, err); + + emit log("\n## assertGeDecimal(uint,uint,uint)\n"); + assertGeDecimal(uint(1.0e18), 1.1e18, 18); + emit log("\n"); + assertGeDecimal(uint(1.0e18), 1.1e18, 18, err); + + emit log("\n## assertLt(uint,uint)\n"); + assertLt(uint(0), 0); + emit log("\n"); + assertLt(uint(0), 0, err); + + emit log("\n## assertLt(int,int)\n"); + assertLt(-1, -1); + emit log("\n"); + assertLt(-1, -1, err); + + emit log("\n## assertLtDecimal(int,int,uint)\n"); + assertLtDecimal(-1.0e18, -1.1e18, 18); + emit log("\n"); + assertLtDecimal(-1.0e18, -1.1e18, 18, err); + + emit log("\n## assertLtDecimal(uint,uint,uint)\n"); + assertLtDecimal(uint(2.0e18), 1.1e18, 18); + emit log("\n"); + assertLtDecimal(uint(2.0e18), 1.1e18, 18, err); + + emit log("\n## assertLe(uint,uint)\n"); + assertLe(uint(1), 0); + emit log("\n"); + assertLe(uint(1), 0, err); + + emit log("\n## assertLe(int,int)\n"); + assertLe(0, -1); + emit log("\n"); + assertLe(0, -1, err); + + emit log("\n## assertLeDecimal(int,int,uint)\n"); + assertLeDecimal(-1.0e18, -1.1e18, 18); + emit log("\n"); + assertLeDecimal(-1.0e18, -1.1e18, 18, err); + + emit log("\n## assertLeDecimal(uint,uint,uint)\n"); + assertLeDecimal(uint(2.0e18), 1.1e18, 18); + emit log("\n"); + assertLeDecimal(uint(2.0e18), 1.1e18, 18, err); + + emit log("\n## assertEq(string,string)\n"); + string memory s1 = "string 1"; + string memory s2 = "string 2"; + assertEq(s1, s2); + emit log("\n"); + assertEq(s1, s2, err); + + emit log("\n## assertEq0(bytes,bytes)\n"); + assertEq0(hex"abcdef01", hex"abcdef02"); + emit log("\n"); + assertEq0(hex"abcdef01", hex"abcdef02", err); + } +} + +contract DemoTestWithSetUp { + function setUp() public { + } + function test_pass() public pure { + } +} diff --git a/lib/openzeppelin-contracts/lib/forge-std/lib/ds-test/package.json b/lib/openzeppelin-contracts/lib/forge-std/lib/ds-test/package.json new file mode 100644 index 0000000..4802ada --- /dev/null +++ b/lib/openzeppelin-contracts/lib/forge-std/lib/ds-test/package.json @@ -0,0 +1,15 @@ +{ + "name": "ds-test", + "version": "1.0.0", + "description": "Assertions, equality checks and other test helpers ", + "bugs": "https://github.com/dapphub/ds-test/issues", + "license": "GPL-3.0", + "author": "Contributors to ds-test", + "files": [ + "src/*" + ], + "repository": { + "type": "git", + "url": "https://github.com/dapphub/ds-test.git" + } +} diff --git a/lib/openzeppelin-contracts/lib/forge-std/lib/ds-test/src/test.sol b/lib/openzeppelin-contracts/lib/forge-std/lib/ds-test/src/test.sol new file mode 100644 index 0000000..515a3bd --- /dev/null +++ b/lib/openzeppelin-contracts/lib/forge-std/lib/ds-test/src/test.sol @@ -0,0 +1,469 @@ +// SPDX-License-Identifier: GPL-3.0-or-later + +// This program is free software: you can redistribute it and/or modify +// it under the terms of the GNU General Public License as published by +// the Free Software Foundation, either version 3 of the License, or +// (at your option) any later version. + +// This program is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. + +// You should have received a copy of the GNU General Public License +// along with this program. If not, see . + +pragma solidity >=0.5.0; + +contract DSTest { + event log (string); + event logs (bytes); + + event log_address (address); + event log_bytes32 (bytes32); + event log_int (int); + event log_uint (uint); + event log_bytes (bytes); + event log_string (string); + + event log_named_address (string key, address val); + event log_named_bytes32 (string key, bytes32 val); + event log_named_decimal_int (string key, int val, uint decimals); + event log_named_decimal_uint (string key, uint val, uint decimals); + event log_named_int (string key, int val); + event log_named_uint (string key, uint val); + event log_named_bytes (string key, bytes val); + event log_named_string (string key, string val); + + bool public IS_TEST = true; + bool private _failed; + + address constant HEVM_ADDRESS = + address(bytes20(uint160(uint256(keccak256('hevm cheat code'))))); + + modifier mayRevert() { _; } + modifier testopts(string memory) { _; } + + function failed() public returns (bool) { + if (_failed) { + return _failed; + } else { + bool globalFailed = false; + if (hasHEVMContext()) { + (, bytes memory retdata) = HEVM_ADDRESS.call( + abi.encodePacked( + bytes4(keccak256("load(address,bytes32)")), + abi.encode(HEVM_ADDRESS, bytes32("failed")) + ) + ); + globalFailed = abi.decode(retdata, (bool)); + } + return globalFailed; + } + } + + function fail() internal { + if (hasHEVMContext()) { + (bool status, ) = HEVM_ADDRESS.call( + abi.encodePacked( + bytes4(keccak256("store(address,bytes32,bytes32)")), + abi.encode(HEVM_ADDRESS, bytes32("failed"), bytes32(uint256(0x01))) + ) + ); + status; // Silence compiler warnings + } + _failed = true; + } + + function hasHEVMContext() internal view returns (bool) { + uint256 hevmCodeSize = 0; + assembly { + hevmCodeSize := extcodesize(0x7109709ECfa91a80626fF3989D68f67F5b1DD12D) + } + return hevmCodeSize > 0; + } + + modifier logs_gas() { + uint startGas = gasleft(); + _; + uint endGas = gasleft(); + emit log_named_uint("gas", startGas - endGas); + } + + function assertTrue(bool condition) internal { + if (!condition) { + emit log("Error: Assertion Failed"); + fail(); + } + } + + function assertTrue(bool condition, string memory err) internal { + if (!condition) { + emit log_named_string("Error", err); + assertTrue(condition); + } + } + + function assertEq(address a, address b) internal { + if (a != b) { + emit log("Error: a == b not satisfied [address]"); + emit log_named_address(" Expected", b); + emit log_named_address(" Actual", a); + fail(); + } + } + function assertEq(address a, address b, string memory err) internal { + if (a != b) { + emit log_named_string ("Error", err); + assertEq(a, b); + } + } + + function assertEq(bytes32 a, bytes32 b) internal { + if (a != b) { + emit log("Error: a == b not satisfied [bytes32]"); + emit log_named_bytes32(" Expected", b); + emit log_named_bytes32(" Actual", a); + fail(); + } + } + function assertEq(bytes32 a, bytes32 b, string memory err) internal { + if (a != b) { + emit log_named_string ("Error", err); + assertEq(a, b); + } + } + function assertEq32(bytes32 a, bytes32 b) internal { + assertEq(a, b); + } + function assertEq32(bytes32 a, bytes32 b, string memory err) internal { + assertEq(a, b, err); + } + + function assertEq(int a, int b) internal { + if (a != b) { + emit log("Error: a == b not satisfied [int]"); + emit log_named_int(" Expected", b); + emit log_named_int(" Actual", a); + fail(); + } + } + function assertEq(int a, int b, string memory err) internal { + if (a != b) { + emit log_named_string("Error", err); + assertEq(a, b); + } + } + function assertEq(uint a, uint b) internal { + if (a != b) { + emit log("Error: a == b not satisfied [uint]"); + emit log_named_uint(" Expected", b); + emit log_named_uint(" Actual", a); + fail(); + } + } + function assertEq(uint a, uint b, string memory err) internal { + if (a != b) { + emit log_named_string("Error", err); + assertEq(a, b); + } + } + function assertEqDecimal(int a, int b, uint decimals) internal { + if (a != b) { + emit log("Error: a == b not satisfied [decimal int]"); + emit log_named_decimal_int(" Expected", b, decimals); + emit log_named_decimal_int(" Actual", a, decimals); + fail(); + } + } + function assertEqDecimal(int a, int b, uint decimals, string memory err) internal { + if (a != b) { + emit log_named_string("Error", err); + assertEqDecimal(a, b, decimals); + } + } + function assertEqDecimal(uint a, uint b, uint decimals) internal { + if (a != b) { + emit log("Error: a == b not satisfied [decimal uint]"); + emit log_named_decimal_uint(" Expected", b, decimals); + emit log_named_decimal_uint(" Actual", a, decimals); + fail(); + } + } + function assertEqDecimal(uint a, uint b, uint decimals, string memory err) internal { + if (a != b) { + emit log_named_string("Error", err); + assertEqDecimal(a, b, decimals); + } + } + + function assertGt(uint a, uint b) internal { + if (a <= b) { + emit log("Error: a > b not satisfied [uint]"); + emit log_named_uint(" Value a", a); + emit log_named_uint(" Value b", b); + fail(); + } + } + function assertGt(uint a, uint b, string memory err) internal { + if (a <= b) { + emit log_named_string("Error", err); + assertGt(a, b); + } + } + function assertGt(int a, int b) internal { + if (a <= b) { + emit log("Error: a > b not satisfied [int]"); + emit log_named_int(" Value a", a); + emit log_named_int(" Value b", b); + fail(); + } + } + function assertGt(int a, int b, string memory err) internal { + if (a <= b) { + emit log_named_string("Error", err); + assertGt(a, b); + } + } + function assertGtDecimal(int a, int b, uint decimals) internal { + if (a <= b) { + emit log("Error: a > b not satisfied [decimal int]"); + emit log_named_decimal_int(" Value a", a, decimals); + emit log_named_decimal_int(" Value b", b, decimals); + fail(); + } + } + function assertGtDecimal(int a, int b, uint decimals, string memory err) internal { + if (a <= b) { + emit log_named_string("Error", err); + assertGtDecimal(a, b, decimals); + } + } + function assertGtDecimal(uint a, uint b, uint decimals) internal { + if (a <= b) { + emit log("Error: a > b not satisfied [decimal uint]"); + emit log_named_decimal_uint(" Value a", a, decimals); + emit log_named_decimal_uint(" Value b", b, decimals); + fail(); + } + } + function assertGtDecimal(uint a, uint b, uint decimals, string memory err) internal { + if (a <= b) { + emit log_named_string("Error", err); + assertGtDecimal(a, b, decimals); + } + } + + function assertGe(uint a, uint b) internal { + if (a < b) { + emit log("Error: a >= b not satisfied [uint]"); + emit log_named_uint(" Value a", a); + emit log_named_uint(" Value b", b); + fail(); + } + } + function assertGe(uint a, uint b, string memory err) internal { + if (a < b) { + emit log_named_string("Error", err); + assertGe(a, b); + } + } + function assertGe(int a, int b) internal { + if (a < b) { + emit log("Error: a >= b not satisfied [int]"); + emit log_named_int(" Value a", a); + emit log_named_int(" Value b", b); + fail(); + } + } + function assertGe(int a, int b, string memory err) internal { + if (a < b) { + emit log_named_string("Error", err); + assertGe(a, b); + } + } + function assertGeDecimal(int a, int b, uint decimals) internal { + if (a < b) { + emit log("Error: a >= b not satisfied [decimal int]"); + emit log_named_decimal_int(" Value a", a, decimals); + emit log_named_decimal_int(" Value b", b, decimals); + fail(); + } + } + function assertGeDecimal(int a, int b, uint decimals, string memory err) internal { + if (a < b) { + emit log_named_string("Error", err); + assertGeDecimal(a, b, decimals); + } + } + function assertGeDecimal(uint a, uint b, uint decimals) internal { + if (a < b) { + emit log("Error: a >= b not satisfied [decimal uint]"); + emit log_named_decimal_uint(" Value a", a, decimals); + emit log_named_decimal_uint(" Value b", b, decimals); + fail(); + } + } + function assertGeDecimal(uint a, uint b, uint decimals, string memory err) internal { + if (a < b) { + emit log_named_string("Error", err); + assertGeDecimal(a, b, decimals); + } + } + + function assertLt(uint a, uint b) internal { + if (a >= b) { + emit log("Error: a < b not satisfied [uint]"); + emit log_named_uint(" Value a", a); + emit log_named_uint(" Value b", b); + fail(); + } + } + function assertLt(uint a, uint b, string memory err) internal { + if (a >= b) { + emit log_named_string("Error", err); + assertLt(a, b); + } + } + function assertLt(int a, int b) internal { + if (a >= b) { + emit log("Error: a < b not satisfied [int]"); + emit log_named_int(" Value a", a); + emit log_named_int(" Value b", b); + fail(); + } + } + function assertLt(int a, int b, string memory err) internal { + if (a >= b) { + emit log_named_string("Error", err); + assertLt(a, b); + } + } + function assertLtDecimal(int a, int b, uint decimals) internal { + if (a >= b) { + emit log("Error: a < b not satisfied [decimal int]"); + emit log_named_decimal_int(" Value a", a, decimals); + emit log_named_decimal_int(" Value b", b, decimals); + fail(); + } + } + function assertLtDecimal(int a, int b, uint decimals, string memory err) internal { + if (a >= b) { + emit log_named_string("Error", err); + assertLtDecimal(a, b, decimals); + } + } + function assertLtDecimal(uint a, uint b, uint decimals) internal { + if (a >= b) { + emit log("Error: a < b not satisfied [decimal uint]"); + emit log_named_decimal_uint(" Value a", a, decimals); + emit log_named_decimal_uint(" Value b", b, decimals); + fail(); + } + } + function assertLtDecimal(uint a, uint b, uint decimals, string memory err) internal { + if (a >= b) { + emit log_named_string("Error", err); + assertLtDecimal(a, b, decimals); + } + } + + function assertLe(uint a, uint b) internal { + if (a > b) { + emit log("Error: a <= b not satisfied [uint]"); + emit log_named_uint(" Value a", a); + emit log_named_uint(" Value b", b); + fail(); + } + } + function assertLe(uint a, uint b, string memory err) internal { + if (a > b) { + emit log_named_string("Error", err); + assertLe(a, b); + } + } + function assertLe(int a, int b) internal { + if (a > b) { + emit log("Error: a <= b not satisfied [int]"); + emit log_named_int(" Value a", a); + emit log_named_int(" Value b", b); + fail(); + } + } + function assertLe(int a, int b, string memory err) internal { + if (a > b) { + emit log_named_string("Error", err); + assertLe(a, b); + } + } + function assertLeDecimal(int a, int b, uint decimals) internal { + if (a > b) { + emit log("Error: a <= b not satisfied [decimal int]"); + emit log_named_decimal_int(" Value a", a, decimals); + emit log_named_decimal_int(" Value b", b, decimals); + fail(); + } + } + function assertLeDecimal(int a, int b, uint decimals, string memory err) internal { + if (a > b) { + emit log_named_string("Error", err); + assertLeDecimal(a, b, decimals); + } + } + function assertLeDecimal(uint a, uint b, uint decimals) internal { + if (a > b) { + emit log("Error: a <= b not satisfied [decimal uint]"); + emit log_named_decimal_uint(" Value a", a, decimals); + emit log_named_decimal_uint(" Value b", b, decimals); + fail(); + } + } + function assertLeDecimal(uint a, uint b, uint decimals, string memory err) internal { + if (a > b) { + emit log_named_string("Error", err); + assertGeDecimal(a, b, decimals); + } + } + + function assertEq(string memory a, string memory b) internal { + if (keccak256(abi.encodePacked(a)) != keccak256(abi.encodePacked(b))) { + emit log("Error: a == b not satisfied [string]"); + emit log_named_string(" Expected", b); + emit log_named_string(" Actual", a); + fail(); + } + } + function assertEq(string memory a, string memory b, string memory err) internal { + if (keccak256(abi.encodePacked(a)) != keccak256(abi.encodePacked(b))) { + emit log_named_string("Error", err); + assertEq(a, b); + } + } + + function checkEq0(bytes memory a, bytes memory b) internal pure returns (bool ok) { + ok = true; + if (a.length == b.length) { + for (uint i = 0; i < a.length; i++) { + if (a[i] != b[i]) { + ok = false; + } + } + } else { + ok = false; + } + } + function assertEq0(bytes memory a, bytes memory b) internal { + if (!checkEq0(a, b)) { + emit log("Error: a == b not satisfied [bytes]"); + emit log_named_bytes(" Expected", b); + emit log_named_bytes(" Actual", a); + fail(); + } + } + function assertEq0(bytes memory a, bytes memory b, string memory err) internal { + if (!checkEq0(a, b)) { + emit log_named_string("Error", err); + assertEq0(a, b); + } + } +} diff --git a/lib/openzeppelin-contracts/lib/forge-std/package.json b/lib/openzeppelin-contracts/lib/forge-std/package.json new file mode 100644 index 0000000..a000ac8 --- /dev/null +++ b/lib/openzeppelin-contracts/lib/forge-std/package.json @@ -0,0 +1,16 @@ +{ + "name": "forge-std", + "version": "1.2.0", + "description": "Forge Standard Library is a collection of helpful contracts and libraries for use with Forge and Foundry.", + "homepage": "https://book.getfoundry.sh/forge/forge-std", + "bugs": "https://github.com/foundry-rs/forge-std/issues", + "license": "(Apache-2.0 OR MIT)", + "author": "Contributors to Forge Standard Library", + "files": [ + "src/*" + ], + "repository": { + "type": "git", + "url": "https://github.com/foundry-rs/forge-std.git" + } +} diff --git a/lib/openzeppelin-contracts/lib/forge-std/src/Base.sol b/lib/openzeppelin-contracts/lib/forge-std/src/Base.sol new file mode 100644 index 0000000..e0d8b05 --- /dev/null +++ b/lib/openzeppelin-contracts/lib/forge-std/src/Base.sol @@ -0,0 +1,31 @@ +// SPDX-License-Identifier: MIT +pragma solidity >=0.6.2 <0.9.0; + +import {StdStorage} from "./StdStorage.sol"; +import {Vm, VmSafe} from "./Vm.sol"; + +abstract contract CommonBase { + // Cheat code address, 0x7109709ECfa91a80626fF3989D68f67F5b1DD12D. + address internal constant VM_ADDRESS = address(uint160(uint256(keccak256("hevm cheat code")))); + // console.sol and console2.sol work by executing a staticcall to this address. + address internal constant CONSOLE = 0x000000000000000000636F6e736F6c652e6c6f67; + // Default address for tx.origin and msg.sender, 0x1804c8AB1F12E6bbf3894d4083f33e07309d1f38. + address internal constant DEFAULT_SENDER = address(uint160(uint256(keccak256("foundry default caller")))); + // Address of the test contract, deployed by the DEFAULT_SENDER. + address internal constant DEFAULT_TEST_CONTRACT = 0x5615dEB798BB3E4dFa0139dFa1b3D433Cc23b72f; + + uint256 internal constant UINT256_MAX = + 115792089237316195423570985008687907853269984665640564039457584007913129639935; + + Vm internal constant vm = Vm(VM_ADDRESS); + StdStorage internal stdstore; +} + +abstract contract TestBase is CommonBase {} + +abstract contract ScriptBase is CommonBase { + // Used when deploying with create2, https://github.com/Arachnid/deterministic-deployment-proxy. + address internal constant CREATE2_FACTORY = 0x4e59b44847b379578588920cA78FbF26c0B4956C; + + VmSafe internal constant vmSafe = VmSafe(VM_ADDRESS); +} diff --git a/lib/openzeppelin-contracts/lib/forge-std/src/Script.sol b/lib/openzeppelin-contracts/lib/forge-std/src/Script.sol new file mode 100644 index 0000000..bffccad --- /dev/null +++ b/lib/openzeppelin-contracts/lib/forge-std/src/Script.sol @@ -0,0 +1,26 @@ +// SPDX-License-Identifier: MIT +pragma solidity >=0.6.2 <0.9.0; + +// 💬 ABOUT +// Standard Library's default Script. + +// 🧩 MODULES +import {ScriptBase} from "./Base.sol"; +import {console} from "./console.sol"; +import {console2} from "./console2.sol"; +import {StdChains} from "./StdChains.sol"; +import {StdCheatsSafe} from "./StdCheats.sol"; +import {stdJson} from "./StdJson.sol"; +import {stdMath} from "./StdMath.sol"; +import {StdStorage, stdStorageSafe} from "./StdStorage.sol"; +import {StdUtils} from "./StdUtils.sol"; +import {VmSafe} from "./Vm.sol"; + +// 📦 BOILERPLATE +import {ScriptBase} from "./Base.sol"; + +// ⭐️ SCRIPT +abstract contract Script is StdChains, StdCheatsSafe, StdUtils, ScriptBase { + // Note: IS_SCRIPT() must return true. + bool public IS_SCRIPT = true; +} diff --git a/lib/openzeppelin-contracts/lib/forge-std/src/StdAssertions.sol b/lib/openzeppelin-contracts/lib/forge-std/src/StdAssertions.sol new file mode 100644 index 0000000..733dbba --- /dev/null +++ b/lib/openzeppelin-contracts/lib/forge-std/src/StdAssertions.sol @@ -0,0 +1,209 @@ +// SPDX-License-Identifier: MIT +pragma solidity >=0.6.2 <0.9.0; + +import {DSTest} from "ds-test/test.sol"; +import {stdMath} from "./StdMath.sol"; + +abstract contract StdAssertions is DSTest { + event log_array(uint256[] val); + event log_array(int256[] val); + event log_array(address[] val); + event log_named_array(string key, uint256[] val); + event log_named_array(string key, int256[] val); + event log_named_array(string key, address[] val); + + function fail(string memory err) internal virtual { + emit log_named_string("Error", err); + fail(); + } + + function assertFalse(bool data) internal virtual { + assertTrue(!data); + } + + function assertFalse(bool data, string memory err) internal virtual { + assertTrue(!data, err); + } + + function assertEq(bool a, bool b) internal virtual { + if (a != b) { + emit log("Error: a == b not satisfied [bool]"); + emit log_named_string(" Expected", b ? "true" : "false"); + emit log_named_string(" Actual", a ? "true" : "false"); + fail(); + } + } + + function assertEq(bool a, bool b, string memory err) internal virtual { + if (a != b) { + emit log_named_string("Error", err); + assertEq(a, b); + } + } + + function assertEq(bytes memory a, bytes memory b) internal virtual { + assertEq0(a, b); + } + + function assertEq(bytes memory a, bytes memory b, string memory err) internal virtual { + assertEq0(a, b, err); + } + + function assertEq(uint256[] memory a, uint256[] memory b) internal virtual { + if (keccak256(abi.encode(a)) != keccak256(abi.encode(b))) { + emit log("Error: a == b not satisfied [uint[]]"); + emit log_named_array(" Expected", b); + emit log_named_array(" Actual", a); + fail(); + } + } + + function assertEq(int256[] memory a, int256[] memory b) internal virtual { + if (keccak256(abi.encode(a)) != keccak256(abi.encode(b))) { + emit log("Error: a == b not satisfied [int[]]"); + emit log_named_array(" Expected", b); + emit log_named_array(" Actual", a); + fail(); + } + } + + function assertEq(address[] memory a, address[] memory b) internal virtual { + if (keccak256(abi.encode(a)) != keccak256(abi.encode(b))) { + emit log("Error: a == b not satisfied [address[]]"); + emit log_named_array(" Expected", b); + emit log_named_array(" Actual", a); + fail(); + } + } + + function assertEq(uint256[] memory a, uint256[] memory b, string memory err) internal virtual { + if (keccak256(abi.encode(a)) != keccak256(abi.encode(b))) { + emit log_named_string("Error", err); + assertEq(a, b); + } + } + + function assertEq(int256[] memory a, int256[] memory b, string memory err) internal virtual { + if (keccak256(abi.encode(a)) != keccak256(abi.encode(b))) { + emit log_named_string("Error", err); + assertEq(a, b); + } + } + + function assertEq(address[] memory a, address[] memory b, string memory err) internal virtual { + if (keccak256(abi.encode(a)) != keccak256(abi.encode(b))) { + emit log_named_string("Error", err); + assertEq(a, b); + } + } + + // Legacy helper + function assertEqUint(uint256 a, uint256 b) internal virtual { + assertEq(uint256(a), uint256(b)); + } + + function assertApproxEqAbs(uint256 a, uint256 b, uint256 maxDelta) internal virtual { + uint256 delta = stdMath.delta(a, b); + + if (delta > maxDelta) { + emit log("Error: a ~= b not satisfied [uint]"); + emit log_named_uint(" Expected", b); + emit log_named_uint(" Actual", a); + emit log_named_uint(" Max Delta", maxDelta); + emit log_named_uint(" Delta", delta); + fail(); + } + } + + function assertApproxEqAbs(uint256 a, uint256 b, uint256 maxDelta, string memory err) internal virtual { + uint256 delta = stdMath.delta(a, b); + + if (delta > maxDelta) { + emit log_named_string("Error", err); + assertApproxEqAbs(a, b, maxDelta); + } + } + + function assertApproxEqAbs(int256 a, int256 b, uint256 maxDelta) internal virtual { + uint256 delta = stdMath.delta(a, b); + + if (delta > maxDelta) { + emit log("Error: a ~= b not satisfied [int]"); + emit log_named_int(" Expected", b); + emit log_named_int(" Actual", a); + emit log_named_uint(" Max Delta", maxDelta); + emit log_named_uint(" Delta", delta); + fail(); + } + } + + function assertApproxEqAbs(int256 a, int256 b, uint256 maxDelta, string memory err) internal virtual { + uint256 delta = stdMath.delta(a, b); + + if (delta > maxDelta) { + emit log_named_string("Error", err); + assertApproxEqAbs(a, b, maxDelta); + } + } + + function assertApproxEqRel( + uint256 a, + uint256 b, + uint256 maxPercentDelta // An 18 decimal fixed point number, where 1e18 == 100% + ) internal virtual { + if (b == 0) return assertEq(a, b); // If the expected is 0, actual must be too. + + uint256 percentDelta = stdMath.percentDelta(a, b); + + if (percentDelta > maxPercentDelta) { + emit log("Error: a ~= b not satisfied [uint]"); + emit log_named_uint(" Expected", b); + emit log_named_uint(" Actual", a); + emit log_named_decimal_uint(" Max % Delta", maxPercentDelta, 18); + emit log_named_decimal_uint(" % Delta", percentDelta, 18); + fail(); + } + } + + function assertApproxEqRel( + uint256 a, + uint256 b, + uint256 maxPercentDelta, // An 18 decimal fixed point number, where 1e18 == 100% + string memory err + ) internal virtual { + if (b == 0) return assertEq(a, b, err); // If the expected is 0, actual must be too. + + uint256 percentDelta = stdMath.percentDelta(a, b); + + if (percentDelta > maxPercentDelta) { + emit log_named_string("Error", err); + assertApproxEqRel(a, b, maxPercentDelta); + } + } + + function assertApproxEqRel(int256 a, int256 b, uint256 maxPercentDelta) internal virtual { + if (b == 0) return assertEq(a, b); // If the expected is 0, actual must be too. + + uint256 percentDelta = stdMath.percentDelta(a, b); + + if (percentDelta > maxPercentDelta) { + emit log("Error: a ~= b not satisfied [int]"); + emit log_named_int(" Expected", b); + emit log_named_int(" Actual", a); + emit log_named_decimal_uint(" Max % Delta", maxPercentDelta, 18); + emit log_named_decimal_uint(" % Delta", percentDelta, 18); + fail(); + } + } + + function assertApproxEqRel(int256 a, int256 b, uint256 maxPercentDelta, string memory err) internal virtual { + if (b == 0) return assertEq(a, b, err); // If the expected is 0, actual must be too. + + uint256 percentDelta = stdMath.percentDelta(a, b); + + if (percentDelta > maxPercentDelta) { + emit log_named_string("Error", err); + assertApproxEqRel(a, b, maxPercentDelta); + } + } +} diff --git a/lib/openzeppelin-contracts/lib/forge-std/src/StdChains.sol b/lib/openzeppelin-contracts/lib/forge-std/src/StdChains.sol new file mode 100644 index 0000000..68755bf --- /dev/null +++ b/lib/openzeppelin-contracts/lib/forge-std/src/StdChains.sol @@ -0,0 +1,189 @@ +// SPDX-License-Identifier: MIT +pragma solidity >=0.6.2 <0.9.0; + +pragma experimental ABIEncoderV2; + +import {VmSafe} from "./Vm.sol"; + +/** + * StdChains provides information about EVM compatible chains that can be used in scripts/tests. + * For each chain, the chain's name, chain ID, and a default RPC URL are provided. Chains are + * identified by their alias, which is the same as the alias in the `[rpc_endpoints]` section of + * the `foundry.toml` file. For best UX, ensure the alias in the `foundry.toml` file match the + * alias used in this contract, which can be found as the first argument to the + * `setChainWithDefaultRpcUrl` call in the `initialize` function. + * + * There are two main ways to use this contract: + * 1. Set a chain with `setChain(string memory chainAlias, Chain memory chain)` + * 2. Get a chain with `getChain(string memory chainAlias)` or `getChain(uint256 chainId)`. + * + * The first time either of those are used, chains are initialized with the default set of RPC URLs. + * This is done in `initialize`, which uses `setChainWithDefaultRpcUrl`. Defaults are recorded in + * `defaultRpcUrls`. + * + * The `setChain` function is straightforward, and it simply saves off the given chain data. + * + * The `getChain` methods use `getChainWithUpdatedRpcUrl` to return a chain. For example, let's say + * we want to retrieve `mainnet`'s RPC URL: + * - If you haven't set any mainnet chain info with `setChain` and you haven't specified that + * chain in `foundry.toml`, the default data and RPC URL will be returned. + * - If you have set a mainnet RPC URL in `foundry.toml` it will return that, if valid (e.g. if + * a URL is given or if an environment variable is given and that environment variable exists). + * Otherwise, the default data is returned. + * - If you specified data with `setChain` it will return that. + * + * Summarizing the above, the prioritization hierarchy is `setChain` -> `foundry.toml` -> defaults. + */ +abstract contract StdChains { + VmSafe private constant vm = VmSafe(address(uint160(uint256(keccak256("hevm cheat code"))))); + + bool private initialized; + + struct Chain { + // The chain name. + string name; + // The chain's Chain ID. + uint256 chainId; + // A default RPC endpoint for this chain. + // NOTE: This default RPC URL is included for convenience to facilitate quick tests and + // experimentation. Do not use this RPC URL for production test suites, CI, or other heavy + // usage as you will be throttled and this is a disservice to others who need this endpoint. + string rpcUrl; + } + + // Maps from the chain's alias (matching the alias in the `foundry.toml` file) to chain data. + mapping(string => Chain) private chains; + // Maps from the chain's alias to it's default RPC URL. + mapping(string => string) private defaultRpcUrls; + // Maps from a chain ID to it's alias. + mapping(uint256 => string) private idToAlias; + + // The RPC URL will be fetched from config or defaultRpcUrls if possible. + function getChain(string memory chainAlias) internal virtual returns (Chain memory chain) { + require(bytes(chainAlias).length != 0, "StdChains getChain(string): Chain alias cannot be the empty string."); + + initialize(); + chain = chains[chainAlias]; + require( + chain.chainId != 0, + string(abi.encodePacked("StdChains getChain(string): Chain with alias \"", chainAlias, "\" not found.")) + ); + + chain = getChainWithUpdatedRpcUrl(chainAlias, chain); + } + + function getChain(uint256 chainId) internal virtual returns (Chain memory chain) { + require(chainId != 0, "StdChains getChain(uint256): Chain ID cannot be 0."); + initialize(); + string memory chainAlias = idToAlias[chainId]; + + chain = chains[chainAlias]; + + require( + chain.chainId != 0, + string(abi.encodePacked("StdChains getChain(uint256): Chain with ID ", vm.toString(chainId), " not found.")) + ); + + chain = getChainWithUpdatedRpcUrl(chainAlias, chain); + } + + // set chain info, with priority to argument's rpcUrl field. + function setChain(string memory chainAlias, Chain memory chain) internal virtual { + require( + bytes(chainAlias).length != 0, "StdChains setChain(string,Chain): Chain alias cannot be the empty string." + ); + + require(chain.chainId != 0, "StdChains setChain(string,Chain): Chain ID cannot be 0."); + + initialize(); + string memory foundAlias = idToAlias[chain.chainId]; + + require( + bytes(foundAlias).length == 0 || keccak256(bytes(foundAlias)) == keccak256(bytes(chainAlias)), + string( + abi.encodePacked( + "StdChains setChain(string,Chain): Chain ID ", + vm.toString(chain.chainId), + " already used by \"", + foundAlias, + "\"." + ) + ) + ); + + uint256 oldChainId = chains[chainAlias].chainId; + delete idToAlias[oldChainId]; + + chains[chainAlias] = chain; + idToAlias[chain.chainId] = chainAlias; + } + + // lookup rpcUrl, in descending order of priority: + // current -> config (foundry.toml) -> default + function getChainWithUpdatedRpcUrl(string memory chainAlias, Chain memory chain) + private + view + returns (Chain memory) + { + if (bytes(chain.rpcUrl).length == 0) { + try vm.rpcUrl(chainAlias) returns (string memory configRpcUrl) { + chain.rpcUrl = configRpcUrl; + } catch (bytes memory err) { + chain.rpcUrl = defaultRpcUrls[chainAlias]; + // distinguish 'not found' from 'cannot read' + bytes memory notFoundError = + abi.encodeWithSignature("CheatCodeError", string(abi.encodePacked("invalid rpc url ", chainAlias))); + if (keccak256(notFoundError) != keccak256(err) || bytes(chain.rpcUrl).length == 0) { + /// @solidity memory-safe-assembly + assembly { + revert(add(32, err), mload(err)) + } + } + } + } + return chain; + } + + function initialize() private { + if (initialized) return; + + initialized = true; + + // If adding an RPC here, make sure to test the default RPC URL in `testRpcs` + setChainWithDefaultRpcUrl("anvil", Chain("Anvil", 31337, "http://127.0.0.1:8545")); + setChainWithDefaultRpcUrl( + "mainnet", Chain("Mainnet", 1, "https://mainnet.infura.io/v3/6770454bc6ea42c58aac12978531b93f") + ); + setChainWithDefaultRpcUrl( + "goerli", Chain("Goerli", 5, "https://goerli.infura.io/v3/6770454bc6ea42c58aac12978531b93f") + ); + setChainWithDefaultRpcUrl( + "sepolia", Chain("Sepolia", 11155111, "https://sepolia.infura.io/v3/6770454bc6ea42c58aac12978531b93f") + ); + setChainWithDefaultRpcUrl("optimism", Chain("Optimism", 10, "https://mainnet.optimism.io")); + setChainWithDefaultRpcUrl("optimism_goerli", Chain("Optimism Goerli", 420, "https://goerli.optimism.io")); + setChainWithDefaultRpcUrl("arbitrum_one", Chain("Arbitrum One", 42161, "https://arb1.arbitrum.io/rpc")); + setChainWithDefaultRpcUrl( + "arbitrum_one_goerli", Chain("Arbitrum One Goerli", 421613, "https://goerli-rollup.arbitrum.io/rpc") + ); + setChainWithDefaultRpcUrl("arbitrum_nova", Chain("Arbitrum Nova", 42170, "https://nova.arbitrum.io/rpc")); + setChainWithDefaultRpcUrl("polygon", Chain("Polygon", 137, "https://polygon-rpc.com")); + setChainWithDefaultRpcUrl("polygon_mumbai", Chain("Polygon Mumbai", 80001, "https://rpc-mumbai.maticvigil.com")); + setChainWithDefaultRpcUrl("avalanche", Chain("Avalanche", 43114, "https://api.avax.network/ext/bc/C/rpc")); + setChainWithDefaultRpcUrl( + "avalanche_fuji", Chain("Avalanche Fuji", 43113, "https://api.avax-test.network/ext/bc/C/rpc") + ); + setChainWithDefaultRpcUrl("bnb_smart_chain", Chain("BNB Smart Chain", 56, "https://bsc-dataseed1.binance.org")); + setChainWithDefaultRpcUrl("bnb_smart_chain_testnet", Chain("BNB Smart Chain Testnet", 97, "https://data-seed-prebsc-1-s1.binance.org:8545"));// forgefmt: disable-line + setChainWithDefaultRpcUrl("gnosis_chain", Chain("Gnosis Chain", 100, "https://rpc.gnosischain.com")); + } + + // set chain info, with priority to chainAlias' rpc url in foundry.toml + function setChainWithDefaultRpcUrl(string memory chainAlias, Chain memory chain) private { + string memory rpcUrl = chain.rpcUrl; + defaultRpcUrls[chainAlias] = rpcUrl; + chain.rpcUrl = ""; + setChain(chainAlias, chain); + chain.rpcUrl = rpcUrl; // restore argument + } +} diff --git a/lib/openzeppelin-contracts/lib/forge-std/src/StdCheats.sol b/lib/openzeppelin-contracts/lib/forge-std/src/StdCheats.sol new file mode 100644 index 0000000..f7204a5 --- /dev/null +++ b/lib/openzeppelin-contracts/lib/forge-std/src/StdCheats.sol @@ -0,0 +1,565 @@ +// SPDX-License-Identifier: MIT +pragma solidity >=0.6.2 <0.9.0; + +pragma experimental ABIEncoderV2; + +import {StdStorage, stdStorage} from "./StdStorage.sol"; +import {Vm} from "./Vm.sol"; + +abstract contract StdCheatsSafe { + Vm private constant vm = Vm(address(uint160(uint256(keccak256("hevm cheat code"))))); + + bool private gasMeteringOff; + + // Data structures to parse Transaction objects from the broadcast artifact + // that conform to EIP1559. The Raw structs is what is parsed from the JSON + // and then converted to the one that is used by the user for better UX. + + struct RawTx1559 { + string[] arguments; + address contractAddress; + string contractName; + // json value name = function + string functionSig; + bytes32 hash; + // json value name = tx + RawTx1559Detail txDetail; + // json value name = type + string opcode; + } + + struct RawTx1559Detail { + AccessList[] accessList; + bytes data; + address from; + bytes gas; + bytes nonce; + address to; + bytes txType; + bytes value; + } + + struct Tx1559 { + string[] arguments; + address contractAddress; + string contractName; + string functionSig; + bytes32 hash; + Tx1559Detail txDetail; + string opcode; + } + + struct Tx1559Detail { + AccessList[] accessList; + bytes data; + address from; + uint256 gas; + uint256 nonce; + address to; + uint256 txType; + uint256 value; + } + + // Data structures to parse Transaction objects from the broadcast artifact + // that DO NOT conform to EIP1559. The Raw structs is what is parsed from the JSON + // and then converted to the one that is used by the user for better UX. + + struct TxLegacy { + string[] arguments; + address contractAddress; + string contractName; + string functionSig; + string hash; + string opcode; + TxDetailLegacy transaction; + } + + struct TxDetailLegacy { + AccessList[] accessList; + uint256 chainId; + bytes data; + address from; + uint256 gas; + uint256 gasPrice; + bytes32 hash; + uint256 nonce; + bytes1 opcode; + bytes32 r; + bytes32 s; + uint256 txType; + address to; + uint8 v; + uint256 value; + } + + struct AccessList { + address accessAddress; + bytes32[] storageKeys; + } + + // Data structures to parse Receipt objects from the broadcast artifact. + // The Raw structs is what is parsed from the JSON + // and then converted to the one that is used by the user for better UX. + + struct RawReceipt { + bytes32 blockHash; + bytes blockNumber; + address contractAddress; + bytes cumulativeGasUsed; + bytes effectiveGasPrice; + address from; + bytes gasUsed; + RawReceiptLog[] logs; + bytes logsBloom; + bytes status; + address to; + bytes32 transactionHash; + bytes transactionIndex; + } + + struct Receipt { + bytes32 blockHash; + uint256 blockNumber; + address contractAddress; + uint256 cumulativeGasUsed; + uint256 effectiveGasPrice; + address from; + uint256 gasUsed; + ReceiptLog[] logs; + bytes logsBloom; + uint256 status; + address to; + bytes32 transactionHash; + uint256 transactionIndex; + } + + // Data structures to parse the entire broadcast artifact, assuming the + // transactions conform to EIP1559. + + struct EIP1559ScriptArtifact { + string[] libraries; + string path; + string[] pending; + Receipt[] receipts; + uint256 timestamp; + Tx1559[] transactions; + TxReturn[] txReturns; + } + + struct RawEIP1559ScriptArtifact { + string[] libraries; + string path; + string[] pending; + RawReceipt[] receipts; + TxReturn[] txReturns; + uint256 timestamp; + RawTx1559[] transactions; + } + + struct RawReceiptLog { + // json value = address + address logAddress; + bytes32 blockHash; + bytes blockNumber; + bytes data; + bytes logIndex; + bool removed; + bytes32[] topics; + bytes32 transactionHash; + bytes transactionIndex; + bytes transactionLogIndex; + } + + struct ReceiptLog { + // json value = address + address logAddress; + bytes32 blockHash; + uint256 blockNumber; + bytes data; + uint256 logIndex; + bytes32[] topics; + uint256 transactionIndex; + uint256 transactionLogIndex; + bool removed; + } + + struct TxReturn { + string internalType; + string value; + } + + function assumeNoPrecompiles(address addr) internal virtual { + // Assembly required since `block.chainid` was introduced in 0.8.0. + uint256 chainId; + assembly { + chainId := chainid() + } + assumeNoPrecompiles(addr, chainId); + } + + function assumeNoPrecompiles(address addr, uint256 chainId) internal virtual { + // Note: For some chains like Optimism these are technically predeploys (i.e. bytecode placed at a specific + // address), but the same rationale for excluding them applies so we include those too. + + // These should be present on all EVM-compatible chains. + vm.assume(addr < address(0x1) || addr > address(0x9)); + + // forgefmt: disable-start + if (chainId == 10 || chainId == 420) { + // https://github.com/ethereum-optimism/optimism/blob/eaa371a0184b56b7ca6d9eb9cb0a2b78b2ccd864/op-bindings/predeploys/addresses.go#L6-L21 + vm.assume(addr < address(0x4200000000000000000000000000000000000000) || addr > address(0x4200000000000000000000000000000000000800)); + } else if (chainId == 42161 || chainId == 421613) { + // https://developer.arbitrum.io/useful-addresses#arbitrum-precompiles-l2-same-on-all-arb-chains + vm.assume(addr < address(0x0000000000000000000000000000000000000064) || addr > address(0x0000000000000000000000000000000000000068)); + } else if (chainId == 43114 || chainId == 43113) { + // https://github.com/ava-labs/subnet-evm/blob/47c03fd007ecaa6de2c52ea081596e0a88401f58/precompile/params.go#L18-L59 + vm.assume(addr < address(0x0100000000000000000000000000000000000000) || addr > address(0x01000000000000000000000000000000000000ff)); + vm.assume(addr < address(0x0200000000000000000000000000000000000000) || addr > address(0x02000000000000000000000000000000000000FF)); + vm.assume(addr < address(0x0300000000000000000000000000000000000000) || addr > address(0x03000000000000000000000000000000000000Ff)); + } + // forgefmt: disable-end + } + + function readEIP1559ScriptArtifact(string memory path) + internal + view + virtual + returns (EIP1559ScriptArtifact memory) + { + string memory data = vm.readFile(path); + bytes memory parsedData = vm.parseJson(data); + RawEIP1559ScriptArtifact memory rawArtifact = abi.decode(parsedData, (RawEIP1559ScriptArtifact)); + EIP1559ScriptArtifact memory artifact; + artifact.libraries = rawArtifact.libraries; + artifact.path = rawArtifact.path; + artifact.timestamp = rawArtifact.timestamp; + artifact.pending = rawArtifact.pending; + artifact.txReturns = rawArtifact.txReturns; + artifact.receipts = rawToConvertedReceipts(rawArtifact.receipts); + artifact.transactions = rawToConvertedEIPTx1559s(rawArtifact.transactions); + return artifact; + } + + function rawToConvertedEIPTx1559s(RawTx1559[] memory rawTxs) internal pure virtual returns (Tx1559[] memory) { + Tx1559[] memory txs = new Tx1559[](rawTxs.length); + for (uint256 i; i < rawTxs.length; i++) { + txs[i] = rawToConvertedEIPTx1559(rawTxs[i]); + } + return txs; + } + + function rawToConvertedEIPTx1559(RawTx1559 memory rawTx) internal pure virtual returns (Tx1559 memory) { + Tx1559 memory transaction; + transaction.arguments = rawTx.arguments; + transaction.contractName = rawTx.contractName; + transaction.functionSig = rawTx.functionSig; + transaction.hash = rawTx.hash; + transaction.txDetail = rawToConvertedEIP1559Detail(rawTx.txDetail); + transaction.opcode = rawTx.opcode; + return transaction; + } + + function rawToConvertedEIP1559Detail(RawTx1559Detail memory rawDetail) + internal + pure + virtual + returns (Tx1559Detail memory) + { + Tx1559Detail memory txDetail; + txDetail.data = rawDetail.data; + txDetail.from = rawDetail.from; + txDetail.to = rawDetail.to; + txDetail.nonce = _bytesToUint(rawDetail.nonce); + txDetail.txType = _bytesToUint(rawDetail.txType); + txDetail.value = _bytesToUint(rawDetail.value); + txDetail.gas = _bytesToUint(rawDetail.gas); + txDetail.accessList = rawDetail.accessList; + return txDetail; + } + + function readTx1559s(string memory path) internal view virtual returns (Tx1559[] memory) { + string memory deployData = vm.readFile(path); + bytes memory parsedDeployData = vm.parseJson(deployData, ".transactions"); + RawTx1559[] memory rawTxs = abi.decode(parsedDeployData, (RawTx1559[])); + return rawToConvertedEIPTx1559s(rawTxs); + } + + function readTx1559(string memory path, uint256 index) internal view virtual returns (Tx1559 memory) { + string memory deployData = vm.readFile(path); + string memory key = string(abi.encodePacked(".transactions[", vm.toString(index), "]")); + bytes memory parsedDeployData = vm.parseJson(deployData, key); + RawTx1559 memory rawTx = abi.decode(parsedDeployData, (RawTx1559)); + return rawToConvertedEIPTx1559(rawTx); + } + + // Analogous to readTransactions, but for receipts. + function readReceipts(string memory path) internal view virtual returns (Receipt[] memory) { + string memory deployData = vm.readFile(path); + bytes memory parsedDeployData = vm.parseJson(deployData, ".receipts"); + RawReceipt[] memory rawReceipts = abi.decode(parsedDeployData, (RawReceipt[])); + return rawToConvertedReceipts(rawReceipts); + } + + function readReceipt(string memory path, uint256 index) internal view virtual returns (Receipt memory) { + string memory deployData = vm.readFile(path); + string memory key = string(abi.encodePacked(".receipts[", vm.toString(index), "]")); + bytes memory parsedDeployData = vm.parseJson(deployData, key); + RawReceipt memory rawReceipt = abi.decode(parsedDeployData, (RawReceipt)); + return rawToConvertedReceipt(rawReceipt); + } + + function rawToConvertedReceipts(RawReceipt[] memory rawReceipts) internal pure virtual returns (Receipt[] memory) { + Receipt[] memory receipts = new Receipt[](rawReceipts.length); + for (uint256 i; i < rawReceipts.length; i++) { + receipts[i] = rawToConvertedReceipt(rawReceipts[i]); + } + return receipts; + } + + function rawToConvertedReceipt(RawReceipt memory rawReceipt) internal pure virtual returns (Receipt memory) { + Receipt memory receipt; + receipt.blockHash = rawReceipt.blockHash; + receipt.to = rawReceipt.to; + receipt.from = rawReceipt.from; + receipt.contractAddress = rawReceipt.contractAddress; + receipt.effectiveGasPrice = _bytesToUint(rawReceipt.effectiveGasPrice); + receipt.cumulativeGasUsed = _bytesToUint(rawReceipt.cumulativeGasUsed); + receipt.gasUsed = _bytesToUint(rawReceipt.gasUsed); + receipt.status = _bytesToUint(rawReceipt.status); + receipt.transactionIndex = _bytesToUint(rawReceipt.transactionIndex); + receipt.blockNumber = _bytesToUint(rawReceipt.blockNumber); + receipt.logs = rawToConvertedReceiptLogs(rawReceipt.logs); + receipt.logsBloom = rawReceipt.logsBloom; + receipt.transactionHash = rawReceipt.transactionHash; + return receipt; + } + + function rawToConvertedReceiptLogs(RawReceiptLog[] memory rawLogs) + internal + pure + virtual + returns (ReceiptLog[] memory) + { + ReceiptLog[] memory logs = new ReceiptLog[](rawLogs.length); + for (uint256 i; i < rawLogs.length; i++) { + logs[i].logAddress = rawLogs[i].logAddress; + logs[i].blockHash = rawLogs[i].blockHash; + logs[i].blockNumber = _bytesToUint(rawLogs[i].blockNumber); + logs[i].data = rawLogs[i].data; + logs[i].logIndex = _bytesToUint(rawLogs[i].logIndex); + logs[i].topics = rawLogs[i].topics; + logs[i].transactionIndex = _bytesToUint(rawLogs[i].transactionIndex); + logs[i].transactionLogIndex = _bytesToUint(rawLogs[i].transactionLogIndex); + logs[i].removed = rawLogs[i].removed; + } + return logs; + } + + // Deploy a contract by fetching the contract bytecode from + // the artifacts directory + // e.g. `deployCode(code, abi.encode(arg1,arg2,arg3))` + function deployCode(string memory what, bytes memory args) internal virtual returns (address addr) { + bytes memory bytecode = abi.encodePacked(vm.getCode(what), args); + /// @solidity memory-safe-assembly + assembly { + addr := create(0, add(bytecode, 0x20), mload(bytecode)) + } + + require(addr != address(0), "StdCheats deployCode(string,bytes): Deployment failed."); + } + + function deployCode(string memory what) internal virtual returns (address addr) { + bytes memory bytecode = vm.getCode(what); + /// @solidity memory-safe-assembly + assembly { + addr := create(0, add(bytecode, 0x20), mload(bytecode)) + } + + require(addr != address(0), "StdCheats deployCode(string): Deployment failed."); + } + + /// @dev deploy contract with value on construction + function deployCode(string memory what, bytes memory args, uint256 val) internal virtual returns (address addr) { + bytes memory bytecode = abi.encodePacked(vm.getCode(what), args); + /// @solidity memory-safe-assembly + assembly { + addr := create(val, add(bytecode, 0x20), mload(bytecode)) + } + + require(addr != address(0), "StdCheats deployCode(string,bytes,uint256): Deployment failed."); + } + + function deployCode(string memory what, uint256 val) internal virtual returns (address addr) { + bytes memory bytecode = vm.getCode(what); + /// @solidity memory-safe-assembly + assembly { + addr := create(val, add(bytecode, 0x20), mload(bytecode)) + } + + require(addr != address(0), "StdCheats deployCode(string,uint256): Deployment failed."); + } + + // creates a labeled address and the corresponding private key + function makeAddrAndKey(string memory name) internal virtual returns (address addr, uint256 privateKey) { + privateKey = uint256(keccak256(abi.encodePacked(name))); + addr = vm.addr(privateKey); + vm.label(addr, name); + } + + // creates a labeled address + function makeAddr(string memory name) internal virtual returns (address addr) { + (addr,) = makeAddrAndKey(name); + } + + function deriveRememberKey(string memory mnemonic, uint32 index) + internal + virtual + returns (address who, uint256 privateKey) + { + privateKey = vm.deriveKey(mnemonic, index); + who = vm.rememberKey(privateKey); + } + + function _bytesToUint(bytes memory b) private pure returns (uint256) { + require(b.length <= 32, "StdCheats _bytesToUint(bytes): Bytes length exceeds 32."); + return abi.decode(abi.encodePacked(new bytes(32 - b.length), b), (uint256)); + } + + function isFork() internal virtual returns (bool status) { + try vm.activeFork() { + status = true; + } catch (bytes memory) {} + } + + modifier skipWhenForking() { + if (!isFork()) { + _; + } + } + + modifier skipWhenNotForking() { + if (isFork()) { + _; + } + } + + modifier noGasMetering() { + vm.pauseGasMetering(); + // To prevent turning gas monitoring back on with nested functions that use this modifier, + // we check if gasMetering started in the off position. If it did, we don't want to turn + // it back on until we exit the top level function that used the modifier + // + // i.e. funcA() noGasMetering { funcB() }, where funcB has noGasMetering as well. + // funcA will have `gasStartedOff` as false, funcB will have it as true, + // so we only turn metering back on at the end of the funcA + bool gasStartedOff = gasMeteringOff; + gasMeteringOff = true; + + _; + + // if gas metering was on when this modifier was called, turn it back on at the end + if (!gasStartedOff) { + gasMeteringOff = false; + vm.resumeGasMetering(); + } + } +} + +// Wrappers around cheatcodes to avoid footguns +abstract contract StdCheats is StdCheatsSafe { + using stdStorage for StdStorage; + + StdStorage private stdstore; + Vm private constant vm = Vm(address(uint160(uint256(keccak256("hevm cheat code"))))); + + // Skip forward or rewind time by the specified number of seconds + function skip(uint256 time) internal virtual { + vm.warp(block.timestamp + time); + } + + function rewind(uint256 time) internal virtual { + vm.warp(block.timestamp - time); + } + + // Setup a prank from an address that has some ether + function hoax(address who) internal virtual { + vm.deal(who, 1 << 128); + vm.prank(who); + } + + function hoax(address who, uint256 give) internal virtual { + vm.deal(who, give); + vm.prank(who); + } + + function hoax(address who, address origin) internal virtual { + vm.deal(who, 1 << 128); + vm.prank(who, origin); + } + + function hoax(address who, address origin, uint256 give) internal virtual { + vm.deal(who, give); + vm.prank(who, origin); + } + + // Start perpetual prank from an address that has some ether + function startHoax(address who) internal virtual { + vm.deal(who, 1 << 128); + vm.startPrank(who); + } + + function startHoax(address who, uint256 give) internal virtual { + vm.deal(who, give); + vm.startPrank(who); + } + + // Start perpetual prank from an address that has some ether + // tx.origin is set to the origin parameter + function startHoax(address who, address origin) internal virtual { + vm.deal(who, 1 << 128); + vm.startPrank(who, origin); + } + + function startHoax(address who, address origin, uint256 give) internal virtual { + vm.deal(who, give); + vm.startPrank(who, origin); + } + + function changePrank(address who) internal virtual { + vm.stopPrank(); + vm.startPrank(who); + } + + // The same as Vm's `deal` + // Use the alternative signature for ERC20 tokens + function deal(address to, uint256 give) internal virtual { + vm.deal(to, give); + } + + // Set the balance of an account for any ERC20 token + // Use the alternative signature to update `totalSupply` + function deal(address token, address to, uint256 give) internal virtual { + deal(token, to, give, false); + } + + function deal(address token, address to, uint256 give, bool adjust) internal virtual { + // get current balance + (, bytes memory balData) = token.call(abi.encodeWithSelector(0x70a08231, to)); + uint256 prevBal = abi.decode(balData, (uint256)); + + // update balance + stdstore.target(token).sig(0x70a08231).with_key(to).checked_write(give); + + // update total supply + if (adjust) { + (, bytes memory totSupData) = token.call(abi.encodeWithSelector(0x18160ddd)); + uint256 totSup = abi.decode(totSupData, (uint256)); + if (give < prevBal) { + totSup -= (prevBal - give); + } else { + totSup += (give - prevBal); + } + stdstore.target(token).sig(0x18160ddd).checked_write(totSup); + } + } +} diff --git a/lib/openzeppelin-contracts/lib/forge-std/src/StdError.sol b/lib/openzeppelin-contracts/lib/forge-std/src/StdError.sol new file mode 100644 index 0000000..a302191 --- /dev/null +++ b/lib/openzeppelin-contracts/lib/forge-std/src/StdError.sol @@ -0,0 +1,15 @@ +// SPDX-License-Identifier: MIT +// Panics work for versions >=0.8.0, but we lowered the pragma to make this compatible with Test +pragma solidity >=0.6.2 <0.9.0; + +library stdError { + bytes public constant assertionError = abi.encodeWithSignature("Panic(uint256)", 0x01); + bytes public constant arithmeticError = abi.encodeWithSignature("Panic(uint256)", 0x11); + bytes public constant divisionError = abi.encodeWithSignature("Panic(uint256)", 0x12); + bytes public constant enumConversionError = abi.encodeWithSignature("Panic(uint256)", 0x21); + bytes public constant encodeStorageError = abi.encodeWithSignature("Panic(uint256)", 0x22); + bytes public constant popError = abi.encodeWithSignature("Panic(uint256)", 0x31); + bytes public constant indexOOBError = abi.encodeWithSignature("Panic(uint256)", 0x32); + bytes public constant memOverflowError = abi.encodeWithSignature("Panic(uint256)", 0x41); + bytes public constant zeroVarError = abi.encodeWithSignature("Panic(uint256)", 0x51); +} diff --git a/lib/openzeppelin-contracts/lib/forge-std/src/StdJson.sol b/lib/openzeppelin-contracts/lib/forge-std/src/StdJson.sol new file mode 100644 index 0000000..2dee471 --- /dev/null +++ b/lib/openzeppelin-contracts/lib/forge-std/src/StdJson.sol @@ -0,0 +1,179 @@ +// SPDX-License-Identifier: MIT +pragma solidity >=0.6.0 <0.9.0; + +pragma experimental ABIEncoderV2; + +import {VmSafe} from "./Vm.sol"; + +// Helpers for parsing and writing JSON files +// To parse: +// ``` +// using stdJson for string; +// string memory json = vm.readFile("some_peth"); +// json.parseUint(""); +// ``` +// To write: +// ``` +// using stdJson for string; +// string memory json = "deploymentArtifact"; +// Contract contract = new Contract(); +// json.serialize("contractAddress", address(contract)); +// json = json.serialize("deploymentTimes", uint(1)); +// // store the stringified JSON to the 'json' variable we have been using as a key +// // as we won't need it any longer +// string memory json2 = "finalArtifact"; +// string memory final = json2.serialize("depArtifact", json); +// final.write(""); +// ``` + +library stdJson { + VmSafe private constant vm = VmSafe(address(uint160(uint256(keccak256("hevm cheat code"))))); + + function parseRaw(string memory json, string memory key) internal pure returns (bytes memory) { + return vm.parseJson(json, key); + } + + function readUint(string memory json, string memory key) internal pure returns (uint256) { + return abi.decode(vm.parseJson(json, key), (uint256)); + } + + function readUintArray(string memory json, string memory key) internal pure returns (uint256[] memory) { + return abi.decode(vm.parseJson(json, key), (uint256[])); + } + + function readInt(string memory json, string memory key) internal pure returns (int256) { + return abi.decode(vm.parseJson(json, key), (int256)); + } + + function readIntArray(string memory json, string memory key) internal pure returns (int256[] memory) { + return abi.decode(vm.parseJson(json, key), (int256[])); + } + + function readBytes32(string memory json, string memory key) internal pure returns (bytes32) { + return abi.decode(vm.parseJson(json, key), (bytes32)); + } + + function readBytes32Array(string memory json, string memory key) internal pure returns (bytes32[] memory) { + return abi.decode(vm.parseJson(json, key), (bytes32[])); + } + + function readString(string memory json, string memory key) internal pure returns (string memory) { + return abi.decode(vm.parseJson(json, key), (string)); + } + + function readStringArray(string memory json, string memory key) internal pure returns (string[] memory) { + return abi.decode(vm.parseJson(json, key), (string[])); + } + + function readAddress(string memory json, string memory key) internal pure returns (address) { + return abi.decode(vm.parseJson(json, key), (address)); + } + + function readAddressArray(string memory json, string memory key) internal pure returns (address[] memory) { + return abi.decode(vm.parseJson(json, key), (address[])); + } + + function readBool(string memory json, string memory key) internal pure returns (bool) { + return abi.decode(vm.parseJson(json, key), (bool)); + } + + function readBoolArray(string memory json, string memory key) internal pure returns (bool[] memory) { + return abi.decode(vm.parseJson(json, key), (bool[])); + } + + function readBytes(string memory json, string memory key) internal pure returns (bytes memory) { + return abi.decode(vm.parseJson(json, key), (bytes)); + } + + function readBytesArray(string memory json, string memory key) internal pure returns (bytes[] memory) { + return abi.decode(vm.parseJson(json, key), (bytes[])); + } + + function serialize(string memory jsonKey, string memory key, bool value) internal returns (string memory) { + return vm.serializeBool(jsonKey, key, value); + } + + function serialize(string memory jsonKey, string memory key, bool[] memory value) + internal + returns (string memory) + { + return vm.serializeBool(jsonKey, key, value); + } + + function serialize(string memory jsonKey, string memory key, uint256 value) internal returns (string memory) { + return vm.serializeUint(jsonKey, key, value); + } + + function serialize(string memory jsonKey, string memory key, uint256[] memory value) + internal + returns (string memory) + { + return vm.serializeUint(jsonKey, key, value); + } + + function serialize(string memory jsonKey, string memory key, int256 value) internal returns (string memory) { + return vm.serializeInt(jsonKey, key, value); + } + + function serialize(string memory jsonKey, string memory key, int256[] memory value) + internal + returns (string memory) + { + return vm.serializeInt(jsonKey, key, value); + } + + function serialize(string memory jsonKey, string memory key, address value) internal returns (string memory) { + return vm.serializeAddress(jsonKey, key, value); + } + + function serialize(string memory jsonKey, string memory key, address[] memory value) + internal + returns (string memory) + { + return vm.serializeAddress(jsonKey, key, value); + } + + function serialize(string memory jsonKey, string memory key, bytes32 value) internal returns (string memory) { + return vm.serializeBytes32(jsonKey, key, value); + } + + function serialize(string memory jsonKey, string memory key, bytes32[] memory value) + internal + returns (string memory) + { + return vm.serializeBytes32(jsonKey, key, value); + } + + function serialize(string memory jsonKey, string memory key, bytes memory value) internal returns (string memory) { + return vm.serializeBytes(jsonKey, key, value); + } + + function serialize(string memory jsonKey, string memory key, bytes[] memory value) + internal + returns (string memory) + { + return vm.serializeBytes(jsonKey, key, value); + } + + function serialize(string memory jsonKey, string memory key, string memory value) + internal + returns (string memory) + { + return vm.serializeString(jsonKey, key, value); + } + + function serialize(string memory jsonKey, string memory key, string[] memory value) + internal + returns (string memory) + { + return vm.serializeString(jsonKey, key, value); + } + + function write(string memory jsonKey, string memory path) internal { + vm.writeJson(jsonKey, path); + } + + function write(string memory jsonKey, string memory path, string memory valueKey) internal { + vm.writeJson(jsonKey, path, valueKey); + } +} diff --git a/lib/openzeppelin-contracts/lib/forge-std/src/StdMath.sol b/lib/openzeppelin-contracts/lib/forge-std/src/StdMath.sol new file mode 100644 index 0000000..459523b --- /dev/null +++ b/lib/openzeppelin-contracts/lib/forge-std/src/StdMath.sol @@ -0,0 +1,43 @@ +// SPDX-License-Identifier: MIT +pragma solidity >=0.6.2 <0.9.0; + +library stdMath { + int256 private constant INT256_MIN = -57896044618658097711785492504343953926634992332820282019728792003956564819968; + + function abs(int256 a) internal pure returns (uint256) { + // Required or it will fail when `a = type(int256).min` + if (a == INT256_MIN) { + return 57896044618658097711785492504343953926634992332820282019728792003956564819968; + } + + return uint256(a > 0 ? a : -a); + } + + function delta(uint256 a, uint256 b) internal pure returns (uint256) { + return a > b ? a - b : b - a; + } + + function delta(int256 a, int256 b) internal pure returns (uint256) { + // a and b are of the same sign + // this works thanks to two's complement, the left-most bit is the sign bit + if ((a ^ b) > -1) { + return delta(abs(a), abs(b)); + } + + // a and b are of opposite signs + return abs(a) + abs(b); + } + + function percentDelta(uint256 a, uint256 b) internal pure returns (uint256) { + uint256 absDelta = delta(a, b); + + return absDelta * 1e18 / b; + } + + function percentDelta(int256 a, int256 b) internal pure returns (uint256) { + uint256 absDelta = delta(a, b); + uint256 absB = abs(b); + + return absDelta * 1e18 / absB; + } +} diff --git a/lib/openzeppelin-contracts/lib/forge-std/src/StdStorage.sol b/lib/openzeppelin-contracts/lib/forge-std/src/StdStorage.sol new file mode 100644 index 0000000..b0bfc00 --- /dev/null +++ b/lib/openzeppelin-contracts/lib/forge-std/src/StdStorage.sol @@ -0,0 +1,327 @@ +// SPDX-License-Identifier: MIT +pragma solidity >=0.6.2 <0.9.0; + +import {Vm} from "./Vm.sol"; + +struct StdStorage { + mapping(address => mapping(bytes4 => mapping(bytes32 => uint256))) slots; + mapping(address => mapping(bytes4 => mapping(bytes32 => bool))) finds; + bytes32[] _keys; + bytes4 _sig; + uint256 _depth; + address _target; + bytes32 _set; +} + +library stdStorageSafe { + event SlotFound(address who, bytes4 fsig, bytes32 keysHash, uint256 slot); + event WARNING_UninitedSlot(address who, uint256 slot); + + Vm private constant vm = Vm(address(uint160(uint256(keccak256("hevm cheat code"))))); + + function sigs(string memory sigStr) internal pure returns (bytes4) { + return bytes4(keccak256(bytes(sigStr))); + } + + /// @notice find an arbitrary storage slot given a function sig, input data, address of the contract and a value to check against + // slot complexity: + // if flat, will be bytes32(uint256(uint)); + // if map, will be keccak256(abi.encode(key, uint(slot))); + // if deep map, will be keccak256(abi.encode(key1, keccak256(abi.encode(key0, uint(slot))))); + // if map struct, will be bytes32(uint256(keccak256(abi.encode(key1, keccak256(abi.encode(key0, uint(slot)))))) + structFieldDepth); + function find(StdStorage storage self) internal returns (uint256) { + address who = self._target; + bytes4 fsig = self._sig; + uint256 field_depth = self._depth; + bytes32[] memory ins = self._keys; + + // calldata to test against + if (self.finds[who][fsig][keccak256(abi.encodePacked(ins, field_depth))]) { + return self.slots[who][fsig][keccak256(abi.encodePacked(ins, field_depth))]; + } + bytes memory cald = abi.encodePacked(fsig, flatten(ins)); + vm.record(); + bytes32 fdat; + { + (, bytes memory rdat) = who.staticcall(cald); + fdat = bytesToBytes32(rdat, 32 * field_depth); + } + + (bytes32[] memory reads,) = vm.accesses(address(who)); + if (reads.length == 1) { + bytes32 curr = vm.load(who, reads[0]); + if (curr == bytes32(0)) { + emit WARNING_UninitedSlot(who, uint256(reads[0])); + } + if (fdat != curr) { + require( + false, + "stdStorage find(StdStorage): Packed slot. This would cause dangerous overwriting and currently isn't supported." + ); + } + emit SlotFound(who, fsig, keccak256(abi.encodePacked(ins, field_depth)), uint256(reads[0])); + self.slots[who][fsig][keccak256(abi.encodePacked(ins, field_depth))] = uint256(reads[0]); + self.finds[who][fsig][keccak256(abi.encodePacked(ins, field_depth))] = true; + } else if (reads.length > 1) { + for (uint256 i = 0; i < reads.length; i++) { + bytes32 prev = vm.load(who, reads[i]); + if (prev == bytes32(0)) { + emit WARNING_UninitedSlot(who, uint256(reads[i])); + } + // store + vm.store(who, reads[i], bytes32(hex"1337")); + bool success; + bytes memory rdat; + { + (success, rdat) = who.staticcall(cald); + fdat = bytesToBytes32(rdat, 32 * field_depth); + } + + if (success && fdat == bytes32(hex"1337")) { + // we found which of the slots is the actual one + emit SlotFound(who, fsig, keccak256(abi.encodePacked(ins, field_depth)), uint256(reads[i])); + self.slots[who][fsig][keccak256(abi.encodePacked(ins, field_depth))] = uint256(reads[i]); + self.finds[who][fsig][keccak256(abi.encodePacked(ins, field_depth))] = true; + vm.store(who, reads[i], prev); + break; + } + vm.store(who, reads[i], prev); + } + } else { + require(false, "stdStorage find(StdStorage): No storage use detected for target."); + } + + require( + self.finds[who][fsig][keccak256(abi.encodePacked(ins, field_depth))], + "stdStorage find(StdStorage): Slot(s) not found." + ); + + delete self._target; + delete self._sig; + delete self._keys; + delete self._depth; + + return self.slots[who][fsig][keccak256(abi.encodePacked(ins, field_depth))]; + } + + function target(StdStorage storage self, address _target) internal returns (StdStorage storage) { + self._target = _target; + return self; + } + + function sig(StdStorage storage self, bytes4 _sig) internal returns (StdStorage storage) { + self._sig = _sig; + return self; + } + + function sig(StdStorage storage self, string memory _sig) internal returns (StdStorage storage) { + self._sig = sigs(_sig); + return self; + } + + function with_key(StdStorage storage self, address who) internal returns (StdStorage storage) { + self._keys.push(bytes32(uint256(uint160(who)))); + return self; + } + + function with_key(StdStorage storage self, uint256 amt) internal returns (StdStorage storage) { + self._keys.push(bytes32(amt)); + return self; + } + + function with_key(StdStorage storage self, bytes32 key) internal returns (StdStorage storage) { + self._keys.push(key); + return self; + } + + function depth(StdStorage storage self, uint256 _depth) internal returns (StdStorage storage) { + self._depth = _depth; + return self; + } + + function read(StdStorage storage self) private returns (bytes memory) { + address t = self._target; + uint256 s = find(self); + return abi.encode(vm.load(t, bytes32(s))); + } + + function read_bytes32(StdStorage storage self) internal returns (bytes32) { + return abi.decode(read(self), (bytes32)); + } + + function read_bool(StdStorage storage self) internal returns (bool) { + int256 v = read_int(self); + if (v == 0) return false; + if (v == 1) return true; + revert("stdStorage read_bool(StdStorage): Cannot decode. Make sure you are reading a bool."); + } + + function read_address(StdStorage storage self) internal returns (address) { + return abi.decode(read(self), (address)); + } + + function read_uint(StdStorage storage self) internal returns (uint256) { + return abi.decode(read(self), (uint256)); + } + + function read_int(StdStorage storage self) internal returns (int256) { + return abi.decode(read(self), (int256)); + } + + function bytesToBytes32(bytes memory b, uint256 offset) private pure returns (bytes32) { + bytes32 out; + + uint256 max = b.length > 32 ? 32 : b.length; + for (uint256 i = 0; i < max; i++) { + out |= bytes32(b[offset + i] & 0xFF) >> (i * 8); + } + return out; + } + + function flatten(bytes32[] memory b) private pure returns (bytes memory) { + bytes memory result = new bytes(b.length * 32); + for (uint256 i = 0; i < b.length; i++) { + bytes32 k = b[i]; + /// @solidity memory-safe-assembly + assembly { + mstore(add(result, add(32, mul(32, i))), k) + } + } + + return result; + } +} + +library stdStorage { + Vm private constant vm = Vm(address(uint160(uint256(keccak256("hevm cheat code"))))); + + function sigs(string memory sigStr) internal pure returns (bytes4) { + return stdStorageSafe.sigs(sigStr); + } + + function find(StdStorage storage self) internal returns (uint256) { + return stdStorageSafe.find(self); + } + + function target(StdStorage storage self, address _target) internal returns (StdStorage storage) { + return stdStorageSafe.target(self, _target); + } + + function sig(StdStorage storage self, bytes4 _sig) internal returns (StdStorage storage) { + return stdStorageSafe.sig(self, _sig); + } + + function sig(StdStorage storage self, string memory _sig) internal returns (StdStorage storage) { + return stdStorageSafe.sig(self, _sig); + } + + function with_key(StdStorage storage self, address who) internal returns (StdStorage storage) { + return stdStorageSafe.with_key(self, who); + } + + function with_key(StdStorage storage self, uint256 amt) internal returns (StdStorage storage) { + return stdStorageSafe.with_key(self, amt); + } + + function with_key(StdStorage storage self, bytes32 key) internal returns (StdStorage storage) { + return stdStorageSafe.with_key(self, key); + } + + function depth(StdStorage storage self, uint256 _depth) internal returns (StdStorage storage) { + return stdStorageSafe.depth(self, _depth); + } + + function checked_write(StdStorage storage self, address who) internal { + checked_write(self, bytes32(uint256(uint160(who)))); + } + + function checked_write(StdStorage storage self, uint256 amt) internal { + checked_write(self, bytes32(amt)); + } + + function checked_write(StdStorage storage self, bool write) internal { + bytes32 t; + /// @solidity memory-safe-assembly + assembly { + t := write + } + checked_write(self, t); + } + + function checked_write(StdStorage storage self, bytes32 set) internal { + address who = self._target; + bytes4 fsig = self._sig; + uint256 field_depth = self._depth; + bytes32[] memory ins = self._keys; + + bytes memory cald = abi.encodePacked(fsig, flatten(ins)); + if (!self.finds[who][fsig][keccak256(abi.encodePacked(ins, field_depth))]) { + find(self); + } + bytes32 slot = bytes32(self.slots[who][fsig][keccak256(abi.encodePacked(ins, field_depth))]); + + bytes32 fdat; + { + (, bytes memory rdat) = who.staticcall(cald); + fdat = bytesToBytes32(rdat, 32 * field_depth); + } + bytes32 curr = vm.load(who, slot); + + if (fdat != curr) { + require( + false, + "stdStorage find(StdStorage): Packed slot. This would cause dangerous overwriting and currently isn't supported." + ); + } + vm.store(who, slot, set); + delete self._target; + delete self._sig; + delete self._keys; + delete self._depth; + } + + function read_bytes32(StdStorage storage self) internal returns (bytes32) { + return stdStorageSafe.read_bytes32(self); + } + + function read_bool(StdStorage storage self) internal returns (bool) { + return stdStorageSafe.read_bool(self); + } + + function read_address(StdStorage storage self) internal returns (address) { + return stdStorageSafe.read_address(self); + } + + function read_uint(StdStorage storage self) internal returns (uint256) { + return stdStorageSafe.read_uint(self); + } + + function read_int(StdStorage storage self) internal returns (int256) { + return stdStorageSafe.read_int(self); + } + + // Private function so needs to be copied over + function bytesToBytes32(bytes memory b, uint256 offset) private pure returns (bytes32) { + bytes32 out; + + uint256 max = b.length > 32 ? 32 : b.length; + for (uint256 i = 0; i < max; i++) { + out |= bytes32(b[offset + i] & 0xFF) >> (i * 8); + } + return out; + } + + // Private function so needs to be copied over + function flatten(bytes32[] memory b) private pure returns (bytes memory) { + bytes memory result = new bytes(b.length * 32); + for (uint256 i = 0; i < b.length; i++) { + bytes32 k = b[i]; + /// @solidity memory-safe-assembly + assembly { + mstore(add(result, add(32, mul(32, i))), k) + } + } + + return result; + } +} diff --git a/lib/openzeppelin-contracts/lib/forge-std/src/StdUtils.sol b/lib/openzeppelin-contracts/lib/forge-std/src/StdUtils.sol new file mode 100644 index 0000000..a283e75 --- /dev/null +++ b/lib/openzeppelin-contracts/lib/forge-std/src/StdUtils.sol @@ -0,0 +1,123 @@ +// SPDX-License-Identifier: MIT +pragma solidity >=0.6.2 <0.9.0; + +// TODO Remove import. +import {VmSafe} from "./Vm.sol"; + +abstract contract StdUtils { + VmSafe private constant vm = VmSafe(address(uint160(uint256(keccak256("hevm cheat code"))))); + address private constant CONSOLE2_ADDRESS = 0x000000000000000000636F6e736F6c652e6c6f67; + + uint256 private constant INT256_MIN_ABS = + 57896044618658097711785492504343953926634992332820282019728792003956564819968; + uint256 private constant UINT256_MAX = + 115792089237316195423570985008687907853269984665640564039457584007913129639935; + + function _bound(uint256 x, uint256 min, uint256 max) internal pure virtual returns (uint256 result) { + require(min <= max, "StdUtils bound(uint256,uint256,uint256): Max is less than min."); + // If x is between min and max, return x directly. This is to ensure that dictionary values + // do not get shifted if the min is nonzero. More info: https://github.com/foundry-rs/forge-std/issues/188 + if (x >= min && x <= max) return x; + + uint256 size = max - min + 1; + + // If the value is 0, 1, 2, 3, warp that to min, min+1, min+2, min+3. Similarly for the UINT256_MAX side. + // This helps ensure coverage of the min/max values. + if (x <= 3 && size > x) return min + x; + if (x >= UINT256_MAX - 3 && size > UINT256_MAX - x) return max - (UINT256_MAX - x); + + // Otherwise, wrap x into the range [min, max], i.e. the range is inclusive. + if (x > max) { + uint256 diff = x - max; + uint256 rem = diff % size; + if (rem == 0) return max; + result = min + rem - 1; + } else if (x < min) { + uint256 diff = min - x; + uint256 rem = diff % size; + if (rem == 0) return min; + result = max - rem + 1; + } + } + + function bound(uint256 x, uint256 min, uint256 max) internal view virtual returns (uint256 result) { + result = _bound(x, min, max); + console2_log("Bound Result", result); + } + + function bound(int256 x, int256 min, int256 max) internal view virtual returns (int256 result) { + require(min <= max, "StdUtils bound(int256,int256,int256): Max is less than min."); + + // Shifting all int256 values to uint256 to use _bound function. The range of two types are: + // int256 : -(2**255) ~ (2**255 - 1) + // uint256: 0 ~ (2**256 - 1) + // So, add 2**255, INT256_MIN_ABS to the integer values. + // + // If the given integer value is -2**255, we cannot use `-uint256(-x)` because of the overflow. + // So, use `~uint256(x) + 1` instead. + uint256 _x = x < 0 ? (INT256_MIN_ABS - ~uint256(x) - 1) : (uint256(x) + INT256_MIN_ABS); + uint256 _min = min < 0 ? (INT256_MIN_ABS - ~uint256(min) - 1) : (uint256(min) + INT256_MIN_ABS); + uint256 _max = max < 0 ? (INT256_MIN_ABS - ~uint256(max) - 1) : (uint256(max) + INT256_MIN_ABS); + + uint256 y = _bound(_x, _min, _max); + + // To move it back to int256 value, subtract INT256_MIN_ABS at here. + result = y < INT256_MIN_ABS ? int256(~(INT256_MIN_ABS - y) + 1) : int256(y - INT256_MIN_ABS); + console2_log("Bound result", vm.toString(result)); + } + + /// @dev Compute the address a contract will be deployed at for a given deployer address and nonce + /// @notice adapated from Solmate implementation (https://github.com/Rari-Capital/solmate/blob/main/src/utils/LibRLP.sol) + function computeCreateAddress(address deployer, uint256 nonce) internal pure virtual returns (address) { + // forgefmt: disable-start + // The integer zero is treated as an empty byte string, and as a result it only has a length prefix, 0x80, computed via 0x80 + 0. + // A one byte integer uses its own value as its length prefix, there is no additional "0x80 + length" prefix that comes before it. + if (nonce == 0x00) return addressFromLast20Bytes(keccak256(abi.encodePacked(bytes1(0xd6), bytes1(0x94), deployer, bytes1(0x80)))); + if (nonce <= 0x7f) return addressFromLast20Bytes(keccak256(abi.encodePacked(bytes1(0xd6), bytes1(0x94), deployer, uint8(nonce)))); + + // Nonces greater than 1 byte all follow a consistent encoding scheme, where each value is preceded by a prefix of 0x80 + length. + if (nonce <= 2**8 - 1) return addressFromLast20Bytes(keccak256(abi.encodePacked(bytes1(0xd7), bytes1(0x94), deployer, bytes1(0x81), uint8(nonce)))); + if (nonce <= 2**16 - 1) return addressFromLast20Bytes(keccak256(abi.encodePacked(bytes1(0xd8), bytes1(0x94), deployer, bytes1(0x82), uint16(nonce)))); + if (nonce <= 2**24 - 1) return addressFromLast20Bytes(keccak256(abi.encodePacked(bytes1(0xd9), bytes1(0x94), deployer, bytes1(0x83), uint24(nonce)))); + // forgefmt: disable-end + + // More details about RLP encoding can be found here: https://eth.wiki/fundamentals/rlp + // 0xda = 0xc0 (short RLP prefix) + 0x16 (length of: 0x94 ++ proxy ++ 0x84 ++ nonce) + // 0x94 = 0x80 + 0x14 (0x14 = the length of an address, 20 bytes, in hex) + // 0x84 = 0x80 + 0x04 (0x04 = the bytes length of the nonce, 4 bytes, in hex) + // We assume nobody can have a nonce large enough to require more than 32 bytes. + return addressFromLast20Bytes( + keccak256(abi.encodePacked(bytes1(0xda), bytes1(0x94), deployer, bytes1(0x84), uint32(nonce))) + ); + } + + function computeCreate2Address(bytes32 salt, bytes32 initcodeHash, address deployer) + internal + pure + virtual + returns (address) + { + return addressFromLast20Bytes(keccak256(abi.encodePacked(bytes1(0xff), deployer, salt, initcodeHash))); + } + + function bytesToUint(bytes memory b) internal pure virtual returns (uint256) { + require(b.length <= 32, "StdUtils bytesToUint(bytes): Bytes length exceeds 32."); + return abi.decode(abi.encodePacked(new bytes(32 - b.length), b), (uint256)); + } + + function addressFromLast20Bytes(bytes32 bytesValue) private pure returns (address) { + return address(uint160(uint256(bytesValue))); + } + + // Used to prevent the compilation of console, which shortens the compilation time when console is not used elsewhere. + + function console2_log(string memory p0, uint256 p1) private view { + (bool status,) = address(CONSOLE2_ADDRESS).staticcall(abi.encodeWithSignature("log(string,uint256)", p0, p1)); + status; + } + + function console2_log(string memory p0, string memory p1) private view { + (bool status,) = address(CONSOLE2_ADDRESS).staticcall(abi.encodeWithSignature("log(string,string)", p0, p1)); + status; + } +} diff --git a/lib/openzeppelin-contracts/lib/forge-std/src/Test.sol b/lib/openzeppelin-contracts/lib/forge-std/src/Test.sol new file mode 100644 index 0000000..6c26230 --- /dev/null +++ b/lib/openzeppelin-contracts/lib/forge-std/src/Test.sol @@ -0,0 +1,28 @@ +// SPDX-License-Identifier: MIT +pragma solidity >=0.6.2 <0.9.0; + +// 💬 ABOUT +// Standard Library's default Test + +// 🧩 MODULES +import {console} from "./console.sol"; +import {console2} from "./console2.sol"; +import {StdAssertions} from "./StdAssertions.sol"; +import {StdChains} from "./StdChains.sol"; +import {StdCheats} from "./StdCheats.sol"; +import {stdError} from "./StdError.sol"; +import {stdJson} from "./StdJson.sol"; +import {stdMath} from "./StdMath.sol"; +import {StdStorage, stdStorage} from "./StdStorage.sol"; +import {StdUtils} from "./StdUtils.sol"; +import {Vm} from "./Vm.sol"; + +// 📦 BOILERPLATE +import {TestBase} from "./Base.sol"; +import {DSTest} from "ds-test/test.sol"; + +// ⭐️ TEST +abstract contract Test is DSTest, StdAssertions, StdChains, StdCheats, StdUtils, TestBase { +// Note: IS_TEST() must return true. +// Note: Must have failure system, https://github.com/dapphub/ds-test/blob/cd98eff28324bfac652e63a239a60632a761790b/src/test.sol#L39-L76. +} diff --git a/lib/openzeppelin-contracts/lib/forge-std/src/Vm.sol b/lib/openzeppelin-contracts/lib/forge-std/src/Vm.sol new file mode 100644 index 0000000..6ebde70 --- /dev/null +++ b/lib/openzeppelin-contracts/lib/forge-std/src/Vm.sol @@ -0,0 +1,385 @@ +// SPDX-License-Identifier: MIT +pragma solidity >=0.6.2 <0.9.0; + +pragma experimental ABIEncoderV2; + +// Cheatcodes are marked as view/pure/none using the following rules: +// 0. A call's observable behaviour includes its return value, logs, reverts and state writes, +// 1. If you can influence a later call's observable behaviour, you're neither `view` nor `pure (you are modifying some state be it the EVM, interpreter, filesystem, etc), +// 2. Otherwise if you can be influenced by an earlier call, or if reading some state, you're `view`, +// 3. Otherwise you're `pure`. + +interface VmSafe { + struct Log { + bytes32[] topics; + bytes data; + address emitter; + } + + struct Rpc { + string key; + string url; + } + + struct FsMetadata { + bool isDir; + bool isSymlink; + uint256 length; + bool readOnly; + uint256 modified; + uint256 accessed; + uint256 created; + } + + // Loads a storage slot from an address + function load(address target, bytes32 slot) external view returns (bytes32 data); + // Signs data + function sign(uint256 privateKey, bytes32 digest) external pure returns (uint8 v, bytes32 r, bytes32 s); + // Gets the address for a given private key + function addr(uint256 privateKey) external pure returns (address addr); + // Gets the nonce of an account + function getNonce(address account) external view returns (uint64 nonce); + // Performs a foreign function call via the terminal + function ffi(string[] calldata commandInput) external returns (bytes memory result); + // Sets environment variables + function setEnv(string calldata name, string calldata value) external; + // Reads environment variables, (name) => (value) + function envBool(string calldata name) external view returns (bool value); + function envUint(string calldata name) external view returns (uint256 value); + function envInt(string calldata name) external view returns (int256 value); + function envAddress(string calldata name) external view returns (address value); + function envBytes32(string calldata name) external view returns (bytes32 value); + function envString(string calldata name) external view returns (string memory value); + function envBytes(string calldata name) external view returns (bytes memory value); + // Reads environment variables as arrays + function envBool(string calldata name, string calldata delim) external view returns (bool[] memory value); + function envUint(string calldata name, string calldata delim) external view returns (uint256[] memory value); + function envInt(string calldata name, string calldata delim) external view returns (int256[] memory value); + function envAddress(string calldata name, string calldata delim) external view returns (address[] memory value); + function envBytes32(string calldata name, string calldata delim) external view returns (bytes32[] memory value); + function envString(string calldata name, string calldata delim) external view returns (string[] memory value); + function envBytes(string calldata name, string calldata delim) external view returns (bytes[] memory value); + // Read environment variables with default value + function envOr(string calldata name, bool defaultValue) external returns (bool value); + function envOr(string calldata name, uint256 defaultValue) external returns (uint256 value); + function envOr(string calldata name, int256 defaultValue) external returns (int256 value); + function envOr(string calldata name, address defaultValue) external returns (address value); + function envOr(string calldata name, bytes32 defaultValue) external returns (bytes32 value); + function envOr(string calldata name, string calldata defaultValue) external returns (string memory value); + function envOr(string calldata name, bytes calldata defaultValue) external returns (bytes memory value); + // Read environment variables as arrays with default value + function envOr(string calldata name, string calldata delim, bool[] calldata defaultValue) + external + returns (bool[] memory value); + function envOr(string calldata name, string calldata delim, uint256[] calldata defaultValue) + external + returns (uint256[] memory value); + function envOr(string calldata name, string calldata delim, int256[] calldata defaultValue) + external + returns (int256[] memory value); + function envOr(string calldata name, string calldata delim, address[] calldata defaultValue) + external + returns (address[] memory value); + function envOr(string calldata name, string calldata delim, bytes32[] calldata defaultValue) + external + returns (bytes32[] memory value); + function envOr(string calldata name, string calldata delim, string[] calldata defaultValue) + external + returns (string[] memory value); + function envOr(string calldata name, string calldata delim, bytes[] calldata defaultValue) + external + returns (bytes[] memory value); + // Records all storage reads and writes + function record() external; + // Gets all accessed reads and write slot from a recording session, for a given address + function accesses(address target) external returns (bytes32[] memory readSlots, bytes32[] memory writeSlots); + // Gets the _creation_ bytecode from an artifact file. Takes in the relative path to the json file + function getCode(string calldata artifactPath) external view returns (bytes memory creationBytecode); + // Gets the _deployed_ bytecode from an artifact file. Takes in the relative path to the json file + function getDeployedCode(string calldata artifactPath) external view returns (bytes memory runtimeBytecode); + // Labels an address in call traces + function label(address account, string calldata newLabel) external; + // Using the address that calls the test contract, has the next call (at this call depth only) create a transaction that can later be signed and sent onchain + function broadcast() external; + // Has the next call (at this call depth only) create a transaction with the address provided as the sender that can later be signed and sent onchain + function broadcast(address signer) external; + // Has the next call (at this call depth only) create a transaction with the private key provided as the sender that can later be signed and sent onchain + function broadcast(uint256 privateKey) external; + // Using the address that calls the test contract, has all subsequent calls (at this call depth only) create transactions that can later be signed and sent onchain + function startBroadcast() external; + // Has all subsequent calls (at this call depth only) create transactions with the address provided that can later be signed and sent onchain + function startBroadcast(address signer) external; + // Has all subsequent calls (at this call depth only) create transactions with the private key provided that can later be signed and sent onchain + function startBroadcast(uint256 privateKey) external; + // Stops collecting onchain transactions + function stopBroadcast() external; + // Reads the entire content of file to string + function readFile(string calldata path) external view returns (string memory data); + // Reads the entire content of file as binary. Path is relative to the project root. + function readFileBinary(string calldata path) external view returns (bytes memory data); + // Get the path of the current project root + function projectRoot() external view returns (string memory path); + // Get the metadata for a file/directory + function fsMetadata(string calldata fileOrDir) external returns (FsMetadata memory metadata); + // Reads next line of file to string + function readLine(string calldata path) external view returns (string memory line); + // Writes data to file, creating a file if it does not exist, and entirely replacing its contents if it does. + function writeFile(string calldata path, string calldata data) external; + // Writes binary data to a file, creating a file if it does not exist, and entirely replacing its contents if it does. + // Path is relative to the project root. + function writeFileBinary(string calldata path, bytes calldata data) external; + // Writes line to file, creating a file if it does not exist. + function writeLine(string calldata path, string calldata data) external; + // Closes file for reading, resetting the offset and allowing to read it from beginning with readLine. + function closeFile(string calldata path) external; + // Removes file. This cheatcode will revert in the following situations, but is not limited to just these cases: + // - Path points to a directory. + // - The file doesn't exist. + // - The user lacks permissions to remove the file. + function removeFile(string calldata path) external; + // Convert values to a string + function toString(address value) external pure returns (string memory stringifiedValue); + function toString(bytes calldata value) external pure returns (string memory stringifiedValue); + function toString(bytes32 value) external pure returns (string memory stringifiedValue); + function toString(bool value) external pure returns (string memory stringifiedValue); + function toString(uint256 value) external pure returns (string memory stringifiedValue); + function toString(int256 value) external pure returns (string memory stringifiedValue); + // Convert values from a string + function parseBytes(string calldata stringifiedValue) external pure returns (bytes memory parsedValue); + function parseAddress(string calldata stringifiedValue) external pure returns (address parsedValue); + function parseUint(string calldata stringifiedValue) external pure returns (uint256 parsedValue); + function parseInt(string calldata stringifiedValue) external pure returns (int256 parsedValue); + function parseBytes32(string calldata stringifiedValue) external pure returns (bytes32 parsedValue); + function parseBool(string calldata stringifiedValue) external pure returns (bool parsedValue); + // Record all the transaction logs + function recordLogs() external; + // Gets all the recorded logs + function getRecordedLogs() external returns (Log[] memory logs); + // Derive a private key from a provided mnenomic string (or mnenomic file path) at the derivation path m/44'/60'/0'/0/{index} + function deriveKey(string calldata mnemonic, uint32 index) external pure returns (uint256 privateKey); + // Derive a private key from a provided mnenomic string (or mnenomic file path) at {derivationPath}{index} + function deriveKey(string calldata mnemonic, string calldata derivationPath, uint32 index) + external + pure + returns (uint256 privateKey); + // Adds a private key to the local forge wallet and returns the address + function rememberKey(uint256 privateKey) external returns (address addr); + // + // parseJson + // + // ---- + // In case the returned value is a JSON object, it's encoded as a ABI-encoded tuple. As JSON objects + // don't have the notion of ordered, but tuples do, they JSON object is encoded with it's fields ordered in + // ALPHABETICAL order. That means that in order to successfully decode the tuple, we need to define a tuple that + // encodes the fields in the same order, which is alphabetical. In the case of Solidity structs, they are encoded + // as tuples, with the attributes in the order in which they are defined. + // For example: json = { 'a': 1, 'b': 0xa4tb......3xs} + // a: uint256 + // b: address + // To decode that json, we need to define a struct or a tuple as follows: + // struct json = { uint256 a; address b; } + // If we defined a json struct with the opposite order, meaning placing the address b first, it would try to + // decode the tuple in that order, and thus fail. + // ---- + // Given a string of JSON, return it as ABI-encoded + function parseJson(string calldata json, string calldata key) external pure returns (bytes memory abiEncodedData); + function parseJson(string calldata json) external pure returns (bytes memory abiEncodedData); + + // Serialize a key and value to a JSON object stored in-memory that can be later written to a file + // It returns the stringified version of the specific JSON file up to that moment. + function serializeBool(string calldata objectKey, string calldata valueKey, bool value) + external + returns (string memory json); + function serializeUint(string calldata objectKey, string calldata valueKey, uint256 value) + external + returns (string memory json); + function serializeInt(string calldata objectKey, string calldata valueKey, int256 value) + external + returns (string memory json); + function serializeAddress(string calldata objectKey, string calldata valueKey, address value) + external + returns (string memory json); + function serializeBytes32(string calldata objectKey, string calldata valueKey, bytes32 value) + external + returns (string memory json); + function serializeString(string calldata objectKey, string calldata valueKey, string calldata value) + external + returns (string memory json); + function serializeBytes(string calldata objectKey, string calldata valueKey, bytes calldata value) + external + returns (string memory json); + + function serializeBool(string calldata objectKey, string calldata valueKey, bool[] calldata values) + external + returns (string memory json); + function serializeUint(string calldata objectKey, string calldata valueKey, uint256[] calldata values) + external + returns (string memory json); + function serializeInt(string calldata objectKey, string calldata valueKey, int256[] calldata values) + external + returns (string memory json); + function serializeAddress(string calldata objectKey, string calldata valueKey, address[] calldata values) + external + returns (string memory json); + function serializeBytes32(string calldata objectKey, string calldata valueKey, bytes32[] calldata values) + external + returns (string memory json); + function serializeString(string calldata objectKey, string calldata valueKey, string[] calldata values) + external + returns (string memory json); + function serializeBytes(string calldata objectKey, string calldata valueKey, bytes[] calldata values) + external + returns (string memory json); + + // + // writeJson + // + // ---- + // Write a serialized JSON object to a file. If the file exists, it will be overwritten. + // Let's assume we want to write the following JSON to a file: + // + // { "boolean": true, "number": 342, "object": { "title": "finally json serialization" } } + // + // ``` + // string memory json1 = "some key"; + // vm.serializeBool(json1, "boolean", true); + // vm.serializeBool(json1, "number", uint256(342)); + // json2 = "some other key"; + // string memory output = vm.serializeString(json2, "title", "finally json serialization"); + // string memory finalJson = vm.serialize(json1, "object", output); + // vm.writeJson(finalJson, "./output/example.json"); + // ``` + // The critical insight is that every invocation of serialization will return the stringified version of the JSON + // up to that point. That means we can construct arbitrary JSON objects and then use the return stringified version + // to serialize them as values to another JSON object. + // + // json1 and json2 are simply keys used by the backend to keep track of the objects. So vm.serializeJson(json1,..) + // will find the object in-memory that is keyed by "some key". + function writeJson(string calldata json, string calldata path) external; + // Write a serialized JSON object to an **existing** JSON file, replacing a value with key = + // This is useful to replace a specific value of a JSON file, without having to parse the entire thing + function writeJson(string calldata json, string calldata path, string calldata valueKey) external; + // Returns the RPC url for the given alias + function rpcUrl(string calldata rpcAlias) external view returns (string memory json); + // Returns all rpc urls and their aliases `[alias, url][]` + function rpcUrls() external view returns (string[2][] memory urls); + // Returns all rpc urls and their aliases as structs. + function rpcUrlStructs() external view returns (Rpc[] memory urls); + // If the condition is false, discard this run's fuzz inputs and generate new ones. + function assume(bool condition) external pure; + // Pauses gas metering (i.e. gas usage is not counted). Noop if already paused. + function pauseGasMetering() external; + // Resumes gas metering (i.e. gas usage is counted again). Noop if already on. + function resumeGasMetering() external; +} + +interface Vm is VmSafe { + // Sets block.timestamp + function warp(uint256 newTimestamp) external; + // Sets block.height + function roll(uint256 newHeight) external; + // Sets block.basefee + function fee(uint256 newBasefee) external; + // Sets block.difficulty + function difficulty(uint256 newDifficulty) external; + // Sets block.chainid + function chainId(uint256 newChainId) external; + // Stores a value to an address' storage slot. + function store(address target, bytes32 slot, bytes32 value) external; + // Sets the nonce of an account; must be higher than the current nonce of the account + function setNonce(address account, uint64 newNonce) external; + // Sets the *next* call's msg.sender to be the input address + function prank(address msgSender) external; + // Sets all subsequent calls' msg.sender to be the input address until `stopPrank` is called + function startPrank(address msgSender) external; + // Sets the *next* call's msg.sender to be the input address, and the tx.origin to be the second input + function prank(address msgSender, address txOrigin) external; + // Sets all subsequent calls' msg.sender to be the input address until `stopPrank` is called, and the tx.origin to be the second input + function startPrank(address msgSender, address txOrigin) external; + // Resets subsequent calls' msg.sender to be `address(this)` + function stopPrank() external; + // Sets an address' balance + function deal(address account, uint256 newBalance) external; + // Sets an address' code + function etch(address target, bytes calldata newRuntimeBytecode) external; + // Expects an error on next call + function expectRevert(bytes calldata revertData) external; + function expectRevert(bytes4 revertData) external; + function expectRevert() external; + // Prepare an expected log with (bool checkTopic1, bool checkTopic2, bool checkTopic3, bool checkData). + // Call this function, then emit an event, then call a function. Internally after the call, we check if + // logs were emitted in the expected order with the expected topics and data (as specified by the booleans) + function expectEmit(bool checkTopic1, bool checkTopic2, bool checkTopic3, bool checkData) external; + function expectEmit(bool checkTopic1, bool checkTopic2, bool checkTopic3, bool checkData, address emitter) + external; + // Mocks a call to an address, returning specified data. + // Calldata can either be strict or a partial match, e.g. if you only + // pass a Solidity selector to the expected calldata, then the entire Solidity + // function will be mocked. + function mockCall(address callee, bytes calldata data, bytes calldata returnData) external; + // Mocks a call to an address with a specific msg.value, returning specified data. + // Calldata match takes precedence over msg.value in case of ambiguity. + function mockCall(address callee, uint256 msgValue, bytes calldata data, bytes calldata returnData) external; + // Clears all mocked calls + function clearMockedCalls() external; + // Expects a call to an address with the specified calldata. + // Calldata can either be a strict or a partial match + function expectCall(address callee, bytes calldata data) external; + // Expects a call to an address with the specified msg.value and calldata + function expectCall(address callee, uint256 msgValue, bytes calldata data) external; + // Sets block.coinbase + function coinbase(address newCoinbase) external; + // Snapshot the current state of the evm. + // Returns the id of the snapshot that was created. + // To revert a snapshot use `revertTo` + function snapshot() external returns (uint256 snapshotId); + // Revert the state of the EVM to a previous snapshot + // Takes the snapshot id to revert to. + // This deletes the snapshot and all snapshots taken after the given snapshot id. + function revertTo(uint256 snapshotId) external returns (bool success); + // Creates a new fork with the given endpoint and block and returns the identifier of the fork + function createFork(string calldata urlOrAlias, uint256 blockNumber) external returns (uint256 forkId); + // Creates a new fork with the given endpoint and the _latest_ block and returns the identifier of the fork + function createFork(string calldata urlOrAlias) external returns (uint256 forkId); + // Creates a new fork with the given endpoint and at the block the given transaction was mined in, replays all transaction mined in the block before the transaction, + // and returns the identifier of the fork + function createFork(string calldata urlOrAlias, bytes32 txHash) external returns (uint256 forkId); + // Creates _and_ also selects a new fork with the given endpoint and block and returns the identifier of the fork + function createSelectFork(string calldata urlOrAlias, uint256 blockNumber) external returns (uint256 forkId); + // Creates _and_ also selects new fork with the given endpoint and at the block the given transaction was mined in, replays all transaction mined in the block before + // the transaction, returns the identifier of the fork + function createSelectFork(string calldata urlOrAlias, bytes32 txHash) external returns (uint256 forkId); + // Creates _and_ also selects a new fork with the given endpoint and the latest block and returns the identifier of the fork + function createSelectFork(string calldata urlOrAlias) external returns (uint256 forkId); + // Takes a fork identifier created by `createFork` and sets the corresponding forked state as active. + function selectFork(uint256 forkId) external; + /// Returns the identifier of the currently active fork. Reverts if no fork is currently active. + function activeFork() external view returns (uint256 forkId); + // Updates the currently active fork to given block number + // This is similar to `roll` but for the currently active fork + function rollFork(uint256 blockNumber) external; + // Updates the currently active fork to given transaction + // this will `rollFork` with the number of the block the transaction was mined in and replays all transaction mined before it in the block + function rollFork(bytes32 txHash) external; + // Updates the given fork to given block number + function rollFork(uint256 forkId, uint256 blockNumber) external; + // Updates the given fork to block number of the given transaction and replays all transaction mined before it in the block + function rollFork(uint256 forkId, bytes32 txHash) external; + // Marks that the account(s) should use persistent storage across fork swaps in a multifork setup + // Meaning, changes made to the state of this account will be kept when switching forks + function makePersistent(address account) external; + function makePersistent(address account0, address account1) external; + function makePersistent(address account0, address account1, address account2) external; + function makePersistent(address[] calldata accounts) external; + // Revokes persistent status from the address, previously added via `makePersistent` + function revokePersistent(address account) external; + function revokePersistent(address[] calldata accounts) external; + // Returns true if the account is marked as persistent + function isPersistent(address account) external view returns (bool persistent); + // In forking mode, explicitly grant the given address cheatcode access + function allowCheatcodes(address account) external; + // Fetches the given transaction from the active fork and executes it on the current state + function transact(bytes32 txHash) external; + // Fetches the given transaction from the given fork and executes it on the current state + function transact(uint256 forkId, bytes32 txHash) external; +} diff --git a/lib/openzeppelin-contracts/lib/forge-std/src/console.sol b/lib/openzeppelin-contracts/lib/forge-std/src/console.sol new file mode 100644 index 0000000..ad57e53 --- /dev/null +++ b/lib/openzeppelin-contracts/lib/forge-std/src/console.sol @@ -0,0 +1,1533 @@ +// SPDX-License-Identifier: MIT +pragma solidity >=0.4.22 <0.9.0; + +library console { + address constant CONSOLE_ADDRESS = address(0x000000000000000000636F6e736F6c652e6c6f67); + + function _sendLogPayload(bytes memory payload) private view { + uint256 payloadLength = payload.length; + address consoleAddress = CONSOLE_ADDRESS; + /// @solidity memory-safe-assembly + assembly { + let payloadStart := add(payload, 32) + let r := staticcall(gas(), consoleAddress, payloadStart, payloadLength, 0, 0) + } + } + + function log() internal view { + _sendLogPayload(abi.encodeWithSignature("log()")); + } + + function logInt(int p0) internal view { + _sendLogPayload(abi.encodeWithSignature("log(int)", p0)); + } + + function logUint(uint p0) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint)", p0)); + } + + function logString(string memory p0) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string)", p0)); + } + + function logBool(bool p0) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool)", p0)); + } + + function logAddress(address p0) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address)", p0)); + } + + function logBytes(bytes memory p0) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bytes)", p0)); + } + + function logBytes1(bytes1 p0) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bytes1)", p0)); + } + + function logBytes2(bytes2 p0) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bytes2)", p0)); + } + + function logBytes3(bytes3 p0) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bytes3)", p0)); + } + + function logBytes4(bytes4 p0) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bytes4)", p0)); + } + + function logBytes5(bytes5 p0) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bytes5)", p0)); + } + + function logBytes6(bytes6 p0) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bytes6)", p0)); + } + + function logBytes7(bytes7 p0) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bytes7)", p0)); + } + + function logBytes8(bytes8 p0) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bytes8)", p0)); + } + + function logBytes9(bytes9 p0) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bytes9)", p0)); + } + + function logBytes10(bytes10 p0) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bytes10)", p0)); + } + + function logBytes11(bytes11 p0) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bytes11)", p0)); + } + + function logBytes12(bytes12 p0) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bytes12)", p0)); + } + + function logBytes13(bytes13 p0) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bytes13)", p0)); + } + + function logBytes14(bytes14 p0) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bytes14)", p0)); + } + + function logBytes15(bytes15 p0) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bytes15)", p0)); + } + + function logBytes16(bytes16 p0) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bytes16)", p0)); + } + + function logBytes17(bytes17 p0) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bytes17)", p0)); + } + + function logBytes18(bytes18 p0) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bytes18)", p0)); + } + + function logBytes19(bytes19 p0) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bytes19)", p0)); + } + + function logBytes20(bytes20 p0) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bytes20)", p0)); + } + + function logBytes21(bytes21 p0) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bytes21)", p0)); + } + + function logBytes22(bytes22 p0) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bytes22)", p0)); + } + + function logBytes23(bytes23 p0) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bytes23)", p0)); + } + + function logBytes24(bytes24 p0) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bytes24)", p0)); + } + + function logBytes25(bytes25 p0) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bytes25)", p0)); + } + + function logBytes26(bytes26 p0) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bytes26)", p0)); + } + + function logBytes27(bytes27 p0) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bytes27)", p0)); + } + + function logBytes28(bytes28 p0) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bytes28)", p0)); + } + + function logBytes29(bytes29 p0) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bytes29)", p0)); + } + + function logBytes30(bytes30 p0) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bytes30)", p0)); + } + + function logBytes31(bytes31 p0) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bytes31)", p0)); + } + + function logBytes32(bytes32 p0) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bytes32)", p0)); + } + + function log(uint p0) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint)", p0)); + } + + function log(string memory p0) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string)", p0)); + } + + function log(bool p0) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool)", p0)); + } + + function log(address p0) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address)", p0)); + } + + function log(uint p0, uint p1) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint,uint)", p0, p1)); + } + + function log(uint p0, string memory p1) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint,string)", p0, p1)); + } + + function log(uint p0, bool p1) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint,bool)", p0, p1)); + } + + function log(uint p0, address p1) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint,address)", p0, p1)); + } + + function log(string memory p0, uint p1) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,uint)", p0, p1)); + } + + function log(string memory p0, string memory p1) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,string)", p0, p1)); + } + + function log(string memory p0, bool p1) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,bool)", p0, p1)); + } + + function log(string memory p0, address p1) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,address)", p0, p1)); + } + + function log(bool p0, uint p1) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,uint)", p0, p1)); + } + + function log(bool p0, string memory p1) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,string)", p0, p1)); + } + + function log(bool p0, bool p1) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,bool)", p0, p1)); + } + + function log(bool p0, address p1) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,address)", p0, p1)); + } + + function log(address p0, uint p1) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,uint)", p0, p1)); + } + + function log(address p0, string memory p1) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,string)", p0, p1)); + } + + function log(address p0, bool p1) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,bool)", p0, p1)); + } + + function log(address p0, address p1) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,address)", p0, p1)); + } + + function log(uint p0, uint p1, uint p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint,uint,uint)", p0, p1, p2)); + } + + function log(uint p0, uint p1, string memory p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint,uint,string)", p0, p1, p2)); + } + + function log(uint p0, uint p1, bool p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint,uint,bool)", p0, p1, p2)); + } + + function log(uint p0, uint p1, address p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint,uint,address)", p0, p1, p2)); + } + + function log(uint p0, string memory p1, uint p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint,string,uint)", p0, p1, p2)); + } + + function log(uint p0, string memory p1, string memory p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint,string,string)", p0, p1, p2)); + } + + function log(uint p0, string memory p1, bool p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint,string,bool)", p0, p1, p2)); + } + + function log(uint p0, string memory p1, address p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint,string,address)", p0, p1, p2)); + } + + function log(uint p0, bool p1, uint p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint,bool,uint)", p0, p1, p2)); + } + + function log(uint p0, bool p1, string memory p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint,bool,string)", p0, p1, p2)); + } + + function log(uint p0, bool p1, bool p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint,bool,bool)", p0, p1, p2)); + } + + function log(uint p0, bool p1, address p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint,bool,address)", p0, p1, p2)); + } + + function log(uint p0, address p1, uint p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint,address,uint)", p0, p1, p2)); + } + + function log(uint p0, address p1, string memory p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint,address,string)", p0, p1, p2)); + } + + function log(uint p0, address p1, bool p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint,address,bool)", p0, p1, p2)); + } + + function log(uint p0, address p1, address p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint,address,address)", p0, p1, p2)); + } + + function log(string memory p0, uint p1, uint p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,uint,uint)", p0, p1, p2)); + } + + function log(string memory p0, uint p1, string memory p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,uint,string)", p0, p1, p2)); + } + + function log(string memory p0, uint p1, bool p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,uint,bool)", p0, p1, p2)); + } + + function log(string memory p0, uint p1, address p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,uint,address)", p0, p1, p2)); + } + + function log(string memory p0, string memory p1, uint p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,string,uint)", p0, p1, p2)); + } + + function log(string memory p0, string memory p1, string memory p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,string,string)", p0, p1, p2)); + } + + function log(string memory p0, string memory p1, bool p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,string,bool)", p0, p1, p2)); + } + + function log(string memory p0, string memory p1, address p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,string,address)", p0, p1, p2)); + } + + function log(string memory p0, bool p1, uint p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,bool,uint)", p0, p1, p2)); + } + + function log(string memory p0, bool p1, string memory p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,bool,string)", p0, p1, p2)); + } + + function log(string memory p0, bool p1, bool p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,bool,bool)", p0, p1, p2)); + } + + function log(string memory p0, bool p1, address p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,bool,address)", p0, p1, p2)); + } + + function log(string memory p0, address p1, uint p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,address,uint)", p0, p1, p2)); + } + + function log(string memory p0, address p1, string memory p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,address,string)", p0, p1, p2)); + } + + function log(string memory p0, address p1, bool p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,address,bool)", p0, p1, p2)); + } + + function log(string memory p0, address p1, address p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,address,address)", p0, p1, p2)); + } + + function log(bool p0, uint p1, uint p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,uint,uint)", p0, p1, p2)); + } + + function log(bool p0, uint p1, string memory p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,uint,string)", p0, p1, p2)); + } + + function log(bool p0, uint p1, bool p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,uint,bool)", p0, p1, p2)); + } + + function log(bool p0, uint p1, address p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,uint,address)", p0, p1, p2)); + } + + function log(bool p0, string memory p1, uint p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,string,uint)", p0, p1, p2)); + } + + function log(bool p0, string memory p1, string memory p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,string,string)", p0, p1, p2)); + } + + function log(bool p0, string memory p1, bool p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,string,bool)", p0, p1, p2)); + } + + function log(bool p0, string memory p1, address p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,string,address)", p0, p1, p2)); + } + + function log(bool p0, bool p1, uint p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,bool,uint)", p0, p1, p2)); + } + + function log(bool p0, bool p1, string memory p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,bool,string)", p0, p1, p2)); + } + + function log(bool p0, bool p1, bool p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,bool,bool)", p0, p1, p2)); + } + + function log(bool p0, bool p1, address p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,bool,address)", p0, p1, p2)); + } + + function log(bool p0, address p1, uint p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,address,uint)", p0, p1, p2)); + } + + function log(bool p0, address p1, string memory p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,address,string)", p0, p1, p2)); + } + + function log(bool p0, address p1, bool p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,address,bool)", p0, p1, p2)); + } + + function log(bool p0, address p1, address p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,address,address)", p0, p1, p2)); + } + + function log(address p0, uint p1, uint p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,uint,uint)", p0, p1, p2)); + } + + function log(address p0, uint p1, string memory p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,uint,string)", p0, p1, p2)); + } + + function log(address p0, uint p1, bool p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,uint,bool)", p0, p1, p2)); + } + + function log(address p0, uint p1, address p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,uint,address)", p0, p1, p2)); + } + + function log(address p0, string memory p1, uint p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,string,uint)", p0, p1, p2)); + } + + function log(address p0, string memory p1, string memory p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,string,string)", p0, p1, p2)); + } + + function log(address p0, string memory p1, bool p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,string,bool)", p0, p1, p2)); + } + + function log(address p0, string memory p1, address p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,string,address)", p0, p1, p2)); + } + + function log(address p0, bool p1, uint p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,bool,uint)", p0, p1, p2)); + } + + function log(address p0, bool p1, string memory p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,bool,string)", p0, p1, p2)); + } + + function log(address p0, bool p1, bool p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,bool,bool)", p0, p1, p2)); + } + + function log(address p0, bool p1, address p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,bool,address)", p0, p1, p2)); + } + + function log(address p0, address p1, uint p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,address,uint)", p0, p1, p2)); + } + + function log(address p0, address p1, string memory p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,address,string)", p0, p1, p2)); + } + + function log(address p0, address p1, bool p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,address,bool)", p0, p1, p2)); + } + + function log(address p0, address p1, address p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,address,address)", p0, p1, p2)); + } + + function log(uint p0, uint p1, uint p2, uint p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint,uint,uint,uint)", p0, p1, p2, p3)); + } + + function log(uint p0, uint p1, uint p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint,uint,uint,string)", p0, p1, p2, p3)); + } + + function log(uint p0, uint p1, uint p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint,uint,uint,bool)", p0, p1, p2, p3)); + } + + function log(uint p0, uint p1, uint p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint,uint,uint,address)", p0, p1, p2, p3)); + } + + function log(uint p0, uint p1, string memory p2, uint p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint,uint,string,uint)", p0, p1, p2, p3)); + } + + function log(uint p0, uint p1, string memory p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint,uint,string,string)", p0, p1, p2, p3)); + } + + function log(uint p0, uint p1, string memory p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint,uint,string,bool)", p0, p1, p2, p3)); + } + + function log(uint p0, uint p1, string memory p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint,uint,string,address)", p0, p1, p2, p3)); + } + + function log(uint p0, uint p1, bool p2, uint p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint,uint,bool,uint)", p0, p1, p2, p3)); + } + + function log(uint p0, uint p1, bool p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint,uint,bool,string)", p0, p1, p2, p3)); + } + + function log(uint p0, uint p1, bool p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint,uint,bool,bool)", p0, p1, p2, p3)); + } + + function log(uint p0, uint p1, bool p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint,uint,bool,address)", p0, p1, p2, p3)); + } + + function log(uint p0, uint p1, address p2, uint p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint,uint,address,uint)", p0, p1, p2, p3)); + } + + function log(uint p0, uint p1, address p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint,uint,address,string)", p0, p1, p2, p3)); + } + + function log(uint p0, uint p1, address p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint,uint,address,bool)", p0, p1, p2, p3)); + } + + function log(uint p0, uint p1, address p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint,uint,address,address)", p0, p1, p2, p3)); + } + + function log(uint p0, string memory p1, uint p2, uint p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint,string,uint,uint)", p0, p1, p2, p3)); + } + + function log(uint p0, string memory p1, uint p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint,string,uint,string)", p0, p1, p2, p3)); + } + + function log(uint p0, string memory p1, uint p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint,string,uint,bool)", p0, p1, p2, p3)); + } + + function log(uint p0, string memory p1, uint p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint,string,uint,address)", p0, p1, p2, p3)); + } + + function log(uint p0, string memory p1, string memory p2, uint p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint,string,string,uint)", p0, p1, p2, p3)); + } + + function log(uint p0, string memory p1, string memory p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint,string,string,string)", p0, p1, p2, p3)); + } + + function log(uint p0, string memory p1, string memory p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint,string,string,bool)", p0, p1, p2, p3)); + } + + function log(uint p0, string memory p1, string memory p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint,string,string,address)", p0, p1, p2, p3)); + } + + function log(uint p0, string memory p1, bool p2, uint p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint,string,bool,uint)", p0, p1, p2, p3)); + } + + function log(uint p0, string memory p1, bool p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint,string,bool,string)", p0, p1, p2, p3)); + } + + function log(uint p0, string memory p1, bool p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint,string,bool,bool)", p0, p1, p2, p3)); + } + + function log(uint p0, string memory p1, bool p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint,string,bool,address)", p0, p1, p2, p3)); + } + + function log(uint p0, string memory p1, address p2, uint p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint,string,address,uint)", p0, p1, p2, p3)); + } + + function log(uint p0, string memory p1, address p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint,string,address,string)", p0, p1, p2, p3)); + } + + function log(uint p0, string memory p1, address p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint,string,address,bool)", p0, p1, p2, p3)); + } + + function log(uint p0, string memory p1, address p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint,string,address,address)", p0, p1, p2, p3)); + } + + function log(uint p0, bool p1, uint p2, uint p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint,bool,uint,uint)", p0, p1, p2, p3)); + } + + function log(uint p0, bool p1, uint p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint,bool,uint,string)", p0, p1, p2, p3)); + } + + function log(uint p0, bool p1, uint p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint,bool,uint,bool)", p0, p1, p2, p3)); + } + + function log(uint p0, bool p1, uint p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint,bool,uint,address)", p0, p1, p2, p3)); + } + + function log(uint p0, bool p1, string memory p2, uint p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint,bool,string,uint)", p0, p1, p2, p3)); + } + + function log(uint p0, bool p1, string memory p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint,bool,string,string)", p0, p1, p2, p3)); + } + + function log(uint p0, bool p1, string memory p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint,bool,string,bool)", p0, p1, p2, p3)); + } + + function log(uint p0, bool p1, string memory p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint,bool,string,address)", p0, p1, p2, p3)); + } + + function log(uint p0, bool p1, bool p2, uint p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint,bool,bool,uint)", p0, p1, p2, p3)); + } + + function log(uint p0, bool p1, bool p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint,bool,bool,string)", p0, p1, p2, p3)); + } + + function log(uint p0, bool p1, bool p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint,bool,bool,bool)", p0, p1, p2, p3)); + } + + function log(uint p0, bool p1, bool p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint,bool,bool,address)", p0, p1, p2, p3)); + } + + function log(uint p0, bool p1, address p2, uint p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint,bool,address,uint)", p0, p1, p2, p3)); + } + + function log(uint p0, bool p1, address p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint,bool,address,string)", p0, p1, p2, p3)); + } + + function log(uint p0, bool p1, address p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint,bool,address,bool)", p0, p1, p2, p3)); + } + + function log(uint p0, bool p1, address p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint,bool,address,address)", p0, p1, p2, p3)); + } + + function log(uint p0, address p1, uint p2, uint p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint,address,uint,uint)", p0, p1, p2, p3)); + } + + function log(uint p0, address p1, uint p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint,address,uint,string)", p0, p1, p2, p3)); + } + + function log(uint p0, address p1, uint p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint,address,uint,bool)", p0, p1, p2, p3)); + } + + function log(uint p0, address p1, uint p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint,address,uint,address)", p0, p1, p2, p3)); + } + + function log(uint p0, address p1, string memory p2, uint p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint,address,string,uint)", p0, p1, p2, p3)); + } + + function log(uint p0, address p1, string memory p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint,address,string,string)", p0, p1, p2, p3)); + } + + function log(uint p0, address p1, string memory p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint,address,string,bool)", p0, p1, p2, p3)); + } + + function log(uint p0, address p1, string memory p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint,address,string,address)", p0, p1, p2, p3)); + } + + function log(uint p0, address p1, bool p2, uint p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint,address,bool,uint)", p0, p1, p2, p3)); + } + + function log(uint p0, address p1, bool p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint,address,bool,string)", p0, p1, p2, p3)); + } + + function log(uint p0, address p1, bool p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint,address,bool,bool)", p0, p1, p2, p3)); + } + + function log(uint p0, address p1, bool p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint,address,bool,address)", p0, p1, p2, p3)); + } + + function log(uint p0, address p1, address p2, uint p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint,address,address,uint)", p0, p1, p2, p3)); + } + + function log(uint p0, address p1, address p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint,address,address,string)", p0, p1, p2, p3)); + } + + function log(uint p0, address p1, address p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint,address,address,bool)", p0, p1, p2, p3)); + } + + function log(uint p0, address p1, address p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint,address,address,address)", p0, p1, p2, p3)); + } + + function log(string memory p0, uint p1, uint p2, uint p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,uint,uint,uint)", p0, p1, p2, p3)); + } + + function log(string memory p0, uint p1, uint p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,uint,uint,string)", p0, p1, p2, p3)); + } + + function log(string memory p0, uint p1, uint p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,uint,uint,bool)", p0, p1, p2, p3)); + } + + function log(string memory p0, uint p1, uint p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,uint,uint,address)", p0, p1, p2, p3)); + } + + function log(string memory p0, uint p1, string memory p2, uint p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,uint,string,uint)", p0, p1, p2, p3)); + } + + function log(string memory p0, uint p1, string memory p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,uint,string,string)", p0, p1, p2, p3)); + } + + function log(string memory p0, uint p1, string memory p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,uint,string,bool)", p0, p1, p2, p3)); + } + + function log(string memory p0, uint p1, string memory p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,uint,string,address)", p0, p1, p2, p3)); + } + + function log(string memory p0, uint p1, bool p2, uint p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,uint,bool,uint)", p0, p1, p2, p3)); + } + + function log(string memory p0, uint p1, bool p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,uint,bool,string)", p0, p1, p2, p3)); + } + + function log(string memory p0, uint p1, bool p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,uint,bool,bool)", p0, p1, p2, p3)); + } + + function log(string memory p0, uint p1, bool p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,uint,bool,address)", p0, p1, p2, p3)); + } + + function log(string memory p0, uint p1, address p2, uint p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,uint,address,uint)", p0, p1, p2, p3)); + } + + function log(string memory p0, uint p1, address p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,uint,address,string)", p0, p1, p2, p3)); + } + + function log(string memory p0, uint p1, address p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,uint,address,bool)", p0, p1, p2, p3)); + } + + function log(string memory p0, uint p1, address p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,uint,address,address)", p0, p1, p2, p3)); + } + + function log(string memory p0, string memory p1, uint p2, uint p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,string,uint,uint)", p0, p1, p2, p3)); + } + + function log(string memory p0, string memory p1, uint p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,string,uint,string)", p0, p1, p2, p3)); + } + + function log(string memory p0, string memory p1, uint p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,string,uint,bool)", p0, p1, p2, p3)); + } + + function log(string memory p0, string memory p1, uint p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,string,uint,address)", p0, p1, p2, p3)); + } + + function log(string memory p0, string memory p1, string memory p2, uint p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,string,string,uint)", p0, p1, p2, p3)); + } + + function log(string memory p0, string memory p1, string memory p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,string,string,string)", p0, p1, p2, p3)); + } + + function log(string memory p0, string memory p1, string memory p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,string,string,bool)", p0, p1, p2, p3)); + } + + function log(string memory p0, string memory p1, string memory p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,string,string,address)", p0, p1, p2, p3)); + } + + function log(string memory p0, string memory p1, bool p2, uint p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,string,bool,uint)", p0, p1, p2, p3)); + } + + function log(string memory p0, string memory p1, bool p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,string,bool,string)", p0, p1, p2, p3)); + } + + function log(string memory p0, string memory p1, bool p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,string,bool,bool)", p0, p1, p2, p3)); + } + + function log(string memory p0, string memory p1, bool p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,string,bool,address)", p0, p1, p2, p3)); + } + + function log(string memory p0, string memory p1, address p2, uint p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,string,address,uint)", p0, p1, p2, p3)); + } + + function log(string memory p0, string memory p1, address p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,string,address,string)", p0, p1, p2, p3)); + } + + function log(string memory p0, string memory p1, address p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,string,address,bool)", p0, p1, p2, p3)); + } + + function log(string memory p0, string memory p1, address p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,string,address,address)", p0, p1, p2, p3)); + } + + function log(string memory p0, bool p1, uint p2, uint p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,bool,uint,uint)", p0, p1, p2, p3)); + } + + function log(string memory p0, bool p1, uint p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,bool,uint,string)", p0, p1, p2, p3)); + } + + function log(string memory p0, bool p1, uint p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,bool,uint,bool)", p0, p1, p2, p3)); + } + + function log(string memory p0, bool p1, uint p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,bool,uint,address)", p0, p1, p2, p3)); + } + + function log(string memory p0, bool p1, string memory p2, uint p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,bool,string,uint)", p0, p1, p2, p3)); + } + + function log(string memory p0, bool p1, string memory p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,bool,string,string)", p0, p1, p2, p3)); + } + + function log(string memory p0, bool p1, string memory p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,bool,string,bool)", p0, p1, p2, p3)); + } + + function log(string memory p0, bool p1, string memory p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,bool,string,address)", p0, p1, p2, p3)); + } + + function log(string memory p0, bool p1, bool p2, uint p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,bool,bool,uint)", p0, p1, p2, p3)); + } + + function log(string memory p0, bool p1, bool p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,bool,bool,string)", p0, p1, p2, p3)); + } + + function log(string memory p0, bool p1, bool p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,bool,bool,bool)", p0, p1, p2, p3)); + } + + function log(string memory p0, bool p1, bool p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,bool,bool,address)", p0, p1, p2, p3)); + } + + function log(string memory p0, bool p1, address p2, uint p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,bool,address,uint)", p0, p1, p2, p3)); + } + + function log(string memory p0, bool p1, address p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,bool,address,string)", p0, p1, p2, p3)); + } + + function log(string memory p0, bool p1, address p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,bool,address,bool)", p0, p1, p2, p3)); + } + + function log(string memory p0, bool p1, address p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,bool,address,address)", p0, p1, p2, p3)); + } + + function log(string memory p0, address p1, uint p2, uint p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,address,uint,uint)", p0, p1, p2, p3)); + } + + function log(string memory p0, address p1, uint p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,address,uint,string)", p0, p1, p2, p3)); + } + + function log(string memory p0, address p1, uint p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,address,uint,bool)", p0, p1, p2, p3)); + } + + function log(string memory p0, address p1, uint p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,address,uint,address)", p0, p1, p2, p3)); + } + + function log(string memory p0, address p1, string memory p2, uint p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,address,string,uint)", p0, p1, p2, p3)); + } + + function log(string memory p0, address p1, string memory p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,address,string,string)", p0, p1, p2, p3)); + } + + function log(string memory p0, address p1, string memory p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,address,string,bool)", p0, p1, p2, p3)); + } + + function log(string memory p0, address p1, string memory p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,address,string,address)", p0, p1, p2, p3)); + } + + function log(string memory p0, address p1, bool p2, uint p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,address,bool,uint)", p0, p1, p2, p3)); + } + + function log(string memory p0, address p1, bool p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,address,bool,string)", p0, p1, p2, p3)); + } + + function log(string memory p0, address p1, bool p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,address,bool,bool)", p0, p1, p2, p3)); + } + + function log(string memory p0, address p1, bool p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,address,bool,address)", p0, p1, p2, p3)); + } + + function log(string memory p0, address p1, address p2, uint p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,address,address,uint)", p0, p1, p2, p3)); + } + + function log(string memory p0, address p1, address p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,address,address,string)", p0, p1, p2, p3)); + } + + function log(string memory p0, address p1, address p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,address,address,bool)", p0, p1, p2, p3)); + } + + function log(string memory p0, address p1, address p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,address,address,address)", p0, p1, p2, p3)); + } + + function log(bool p0, uint p1, uint p2, uint p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,uint,uint,uint)", p0, p1, p2, p3)); + } + + function log(bool p0, uint p1, uint p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,uint,uint,string)", p0, p1, p2, p3)); + } + + function log(bool p0, uint p1, uint p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,uint,uint,bool)", p0, p1, p2, p3)); + } + + function log(bool p0, uint p1, uint p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,uint,uint,address)", p0, p1, p2, p3)); + } + + function log(bool p0, uint p1, string memory p2, uint p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,uint,string,uint)", p0, p1, p2, p3)); + } + + function log(bool p0, uint p1, string memory p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,uint,string,string)", p0, p1, p2, p3)); + } + + function log(bool p0, uint p1, string memory p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,uint,string,bool)", p0, p1, p2, p3)); + } + + function log(bool p0, uint p1, string memory p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,uint,string,address)", p0, p1, p2, p3)); + } + + function log(bool p0, uint p1, bool p2, uint p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,uint,bool,uint)", p0, p1, p2, p3)); + } + + function log(bool p0, uint p1, bool p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,uint,bool,string)", p0, p1, p2, p3)); + } + + function log(bool p0, uint p1, bool p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,uint,bool,bool)", p0, p1, p2, p3)); + } + + function log(bool p0, uint p1, bool p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,uint,bool,address)", p0, p1, p2, p3)); + } + + function log(bool p0, uint p1, address p2, uint p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,uint,address,uint)", p0, p1, p2, p3)); + } + + function log(bool p0, uint p1, address p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,uint,address,string)", p0, p1, p2, p3)); + } + + function log(bool p0, uint p1, address p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,uint,address,bool)", p0, p1, p2, p3)); + } + + function log(bool p0, uint p1, address p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,uint,address,address)", p0, p1, p2, p3)); + } + + function log(bool p0, string memory p1, uint p2, uint p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,string,uint,uint)", p0, p1, p2, p3)); + } + + function log(bool p0, string memory p1, uint p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,string,uint,string)", p0, p1, p2, p3)); + } + + function log(bool p0, string memory p1, uint p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,string,uint,bool)", p0, p1, p2, p3)); + } + + function log(bool p0, string memory p1, uint p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,string,uint,address)", p0, p1, p2, p3)); + } + + function log(bool p0, string memory p1, string memory p2, uint p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,string,string,uint)", p0, p1, p2, p3)); + } + + function log(bool p0, string memory p1, string memory p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,string,string,string)", p0, p1, p2, p3)); + } + + function log(bool p0, string memory p1, string memory p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,string,string,bool)", p0, p1, p2, p3)); + } + + function log(bool p0, string memory p1, string memory p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,string,string,address)", p0, p1, p2, p3)); + } + + function log(bool p0, string memory p1, bool p2, uint p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,string,bool,uint)", p0, p1, p2, p3)); + } + + function log(bool p0, string memory p1, bool p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,string,bool,string)", p0, p1, p2, p3)); + } + + function log(bool p0, string memory p1, bool p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,string,bool,bool)", p0, p1, p2, p3)); + } + + function log(bool p0, string memory p1, bool p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,string,bool,address)", p0, p1, p2, p3)); + } + + function log(bool p0, string memory p1, address p2, uint p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,string,address,uint)", p0, p1, p2, p3)); + } + + function log(bool p0, string memory p1, address p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,string,address,string)", p0, p1, p2, p3)); + } + + function log(bool p0, string memory p1, address p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,string,address,bool)", p0, p1, p2, p3)); + } + + function log(bool p0, string memory p1, address p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,string,address,address)", p0, p1, p2, p3)); + } + + function log(bool p0, bool p1, uint p2, uint p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,bool,uint,uint)", p0, p1, p2, p3)); + } + + function log(bool p0, bool p1, uint p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,bool,uint,string)", p0, p1, p2, p3)); + } + + function log(bool p0, bool p1, uint p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,bool,uint,bool)", p0, p1, p2, p3)); + } + + function log(bool p0, bool p1, uint p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,bool,uint,address)", p0, p1, p2, p3)); + } + + function log(bool p0, bool p1, string memory p2, uint p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,bool,string,uint)", p0, p1, p2, p3)); + } + + function log(bool p0, bool p1, string memory p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,bool,string,string)", p0, p1, p2, p3)); + } + + function log(bool p0, bool p1, string memory p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,bool,string,bool)", p0, p1, p2, p3)); + } + + function log(bool p0, bool p1, string memory p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,bool,string,address)", p0, p1, p2, p3)); + } + + function log(bool p0, bool p1, bool p2, uint p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,bool,bool,uint)", p0, p1, p2, p3)); + } + + function log(bool p0, bool p1, bool p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,bool,bool,string)", p0, p1, p2, p3)); + } + + function log(bool p0, bool p1, bool p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,bool,bool,bool)", p0, p1, p2, p3)); + } + + function log(bool p0, bool p1, bool p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,bool,bool,address)", p0, p1, p2, p3)); + } + + function log(bool p0, bool p1, address p2, uint p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,bool,address,uint)", p0, p1, p2, p3)); + } + + function log(bool p0, bool p1, address p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,bool,address,string)", p0, p1, p2, p3)); + } + + function log(bool p0, bool p1, address p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,bool,address,bool)", p0, p1, p2, p3)); + } + + function log(bool p0, bool p1, address p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,bool,address,address)", p0, p1, p2, p3)); + } + + function log(bool p0, address p1, uint p2, uint p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,address,uint,uint)", p0, p1, p2, p3)); + } + + function log(bool p0, address p1, uint p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,address,uint,string)", p0, p1, p2, p3)); + } + + function log(bool p0, address p1, uint p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,address,uint,bool)", p0, p1, p2, p3)); + } + + function log(bool p0, address p1, uint p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,address,uint,address)", p0, p1, p2, p3)); + } + + function log(bool p0, address p1, string memory p2, uint p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,address,string,uint)", p0, p1, p2, p3)); + } + + function log(bool p0, address p1, string memory p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,address,string,string)", p0, p1, p2, p3)); + } + + function log(bool p0, address p1, string memory p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,address,string,bool)", p0, p1, p2, p3)); + } + + function log(bool p0, address p1, string memory p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,address,string,address)", p0, p1, p2, p3)); + } + + function log(bool p0, address p1, bool p2, uint p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,address,bool,uint)", p0, p1, p2, p3)); + } + + function log(bool p0, address p1, bool p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,address,bool,string)", p0, p1, p2, p3)); + } + + function log(bool p0, address p1, bool p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,address,bool,bool)", p0, p1, p2, p3)); + } + + function log(bool p0, address p1, bool p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,address,bool,address)", p0, p1, p2, p3)); + } + + function log(bool p0, address p1, address p2, uint p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,address,address,uint)", p0, p1, p2, p3)); + } + + function log(bool p0, address p1, address p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,address,address,string)", p0, p1, p2, p3)); + } + + function log(bool p0, address p1, address p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,address,address,bool)", p0, p1, p2, p3)); + } + + function log(bool p0, address p1, address p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,address,address,address)", p0, p1, p2, p3)); + } + + function log(address p0, uint p1, uint p2, uint p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,uint,uint,uint)", p0, p1, p2, p3)); + } + + function log(address p0, uint p1, uint p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,uint,uint,string)", p0, p1, p2, p3)); + } + + function log(address p0, uint p1, uint p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,uint,uint,bool)", p0, p1, p2, p3)); + } + + function log(address p0, uint p1, uint p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,uint,uint,address)", p0, p1, p2, p3)); + } + + function log(address p0, uint p1, string memory p2, uint p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,uint,string,uint)", p0, p1, p2, p3)); + } + + function log(address p0, uint p1, string memory p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,uint,string,string)", p0, p1, p2, p3)); + } + + function log(address p0, uint p1, string memory p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,uint,string,bool)", p0, p1, p2, p3)); + } + + function log(address p0, uint p1, string memory p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,uint,string,address)", p0, p1, p2, p3)); + } + + function log(address p0, uint p1, bool p2, uint p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,uint,bool,uint)", p0, p1, p2, p3)); + } + + function log(address p0, uint p1, bool p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,uint,bool,string)", p0, p1, p2, p3)); + } + + function log(address p0, uint p1, bool p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,uint,bool,bool)", p0, p1, p2, p3)); + } + + function log(address p0, uint p1, bool p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,uint,bool,address)", p0, p1, p2, p3)); + } + + function log(address p0, uint p1, address p2, uint p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,uint,address,uint)", p0, p1, p2, p3)); + } + + function log(address p0, uint p1, address p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,uint,address,string)", p0, p1, p2, p3)); + } + + function log(address p0, uint p1, address p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,uint,address,bool)", p0, p1, p2, p3)); + } + + function log(address p0, uint p1, address p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,uint,address,address)", p0, p1, p2, p3)); + } + + function log(address p0, string memory p1, uint p2, uint p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,string,uint,uint)", p0, p1, p2, p3)); + } + + function log(address p0, string memory p1, uint p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,string,uint,string)", p0, p1, p2, p3)); + } + + function log(address p0, string memory p1, uint p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,string,uint,bool)", p0, p1, p2, p3)); + } + + function log(address p0, string memory p1, uint p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,string,uint,address)", p0, p1, p2, p3)); + } + + function log(address p0, string memory p1, string memory p2, uint p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,string,string,uint)", p0, p1, p2, p3)); + } + + function log(address p0, string memory p1, string memory p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,string,string,string)", p0, p1, p2, p3)); + } + + function log(address p0, string memory p1, string memory p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,string,string,bool)", p0, p1, p2, p3)); + } + + function log(address p0, string memory p1, string memory p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,string,string,address)", p0, p1, p2, p3)); + } + + function log(address p0, string memory p1, bool p2, uint p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,string,bool,uint)", p0, p1, p2, p3)); + } + + function log(address p0, string memory p1, bool p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,string,bool,string)", p0, p1, p2, p3)); + } + + function log(address p0, string memory p1, bool p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,string,bool,bool)", p0, p1, p2, p3)); + } + + function log(address p0, string memory p1, bool p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,string,bool,address)", p0, p1, p2, p3)); + } + + function log(address p0, string memory p1, address p2, uint p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,string,address,uint)", p0, p1, p2, p3)); + } + + function log(address p0, string memory p1, address p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,string,address,string)", p0, p1, p2, p3)); + } + + function log(address p0, string memory p1, address p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,string,address,bool)", p0, p1, p2, p3)); + } + + function log(address p0, string memory p1, address p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,string,address,address)", p0, p1, p2, p3)); + } + + function log(address p0, bool p1, uint p2, uint p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,bool,uint,uint)", p0, p1, p2, p3)); + } + + function log(address p0, bool p1, uint p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,bool,uint,string)", p0, p1, p2, p3)); + } + + function log(address p0, bool p1, uint p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,bool,uint,bool)", p0, p1, p2, p3)); + } + + function log(address p0, bool p1, uint p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,bool,uint,address)", p0, p1, p2, p3)); + } + + function log(address p0, bool p1, string memory p2, uint p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,bool,string,uint)", p0, p1, p2, p3)); + } + + function log(address p0, bool p1, string memory p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,bool,string,string)", p0, p1, p2, p3)); + } + + function log(address p0, bool p1, string memory p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,bool,string,bool)", p0, p1, p2, p3)); + } + + function log(address p0, bool p1, string memory p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,bool,string,address)", p0, p1, p2, p3)); + } + + function log(address p0, bool p1, bool p2, uint p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,bool,bool,uint)", p0, p1, p2, p3)); + } + + function log(address p0, bool p1, bool p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,bool,bool,string)", p0, p1, p2, p3)); + } + + function log(address p0, bool p1, bool p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,bool,bool,bool)", p0, p1, p2, p3)); + } + + function log(address p0, bool p1, bool p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,bool,bool,address)", p0, p1, p2, p3)); + } + + function log(address p0, bool p1, address p2, uint p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,bool,address,uint)", p0, p1, p2, p3)); + } + + function log(address p0, bool p1, address p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,bool,address,string)", p0, p1, p2, p3)); + } + + function log(address p0, bool p1, address p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,bool,address,bool)", p0, p1, p2, p3)); + } + + function log(address p0, bool p1, address p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,bool,address,address)", p0, p1, p2, p3)); + } + + function log(address p0, address p1, uint p2, uint p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,address,uint,uint)", p0, p1, p2, p3)); + } + + function log(address p0, address p1, uint p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,address,uint,string)", p0, p1, p2, p3)); + } + + function log(address p0, address p1, uint p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,address,uint,bool)", p0, p1, p2, p3)); + } + + function log(address p0, address p1, uint p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,address,uint,address)", p0, p1, p2, p3)); + } + + function log(address p0, address p1, string memory p2, uint p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,address,string,uint)", p0, p1, p2, p3)); + } + + function log(address p0, address p1, string memory p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,address,string,string)", p0, p1, p2, p3)); + } + + function log(address p0, address p1, string memory p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,address,string,bool)", p0, p1, p2, p3)); + } + + function log(address p0, address p1, string memory p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,address,string,address)", p0, p1, p2, p3)); + } + + function log(address p0, address p1, bool p2, uint p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,address,bool,uint)", p0, p1, p2, p3)); + } + + function log(address p0, address p1, bool p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,address,bool,string)", p0, p1, p2, p3)); + } + + function log(address p0, address p1, bool p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,address,bool,bool)", p0, p1, p2, p3)); + } + + function log(address p0, address p1, bool p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,address,bool,address)", p0, p1, p2, p3)); + } + + function log(address p0, address p1, address p2, uint p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,address,address,uint)", p0, p1, p2, p3)); + } + + function log(address p0, address p1, address p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,address,address,string)", p0, p1, p2, p3)); + } + + function log(address p0, address p1, address p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,address,address,bool)", p0, p1, p2, p3)); + } + + function log(address p0, address p1, address p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,address,address,address)", p0, p1, p2, p3)); + } + +} \ No newline at end of file diff --git a/lib/openzeppelin-contracts/lib/forge-std/src/console2.sol b/lib/openzeppelin-contracts/lib/forge-std/src/console2.sol new file mode 100644 index 0000000..8596233 --- /dev/null +++ b/lib/openzeppelin-contracts/lib/forge-std/src/console2.sol @@ -0,0 +1,1546 @@ +// SPDX-License-Identifier: MIT +pragma solidity >=0.4.22 <0.9.0; + +/// @dev The original console.sol uses `int` and `uint` for computing function selectors, but it should +/// use `int256` and `uint256`. This modified version fixes that. This version is recommended +/// over `console.sol` if you don't need compatibility with Hardhat as the logs will show up in +/// forge stack traces. If you do need compatibility with Hardhat, you must use `console.sol`. +/// Reference: https://github.com/NomicFoundation/hardhat/issues/2178 +library console2 { + address constant CONSOLE_ADDRESS = address(0x000000000000000000636F6e736F6c652e6c6f67); + + function _sendLogPayload(bytes memory payload) private view { + uint256 payloadLength = payload.length; + address consoleAddress = CONSOLE_ADDRESS; + /// @solidity memory-safe-assembly + assembly { + let payloadStart := add(payload, 32) + let r := staticcall(gas(), consoleAddress, payloadStart, payloadLength, 0, 0) + } + } + + function log() internal view { + _sendLogPayload(abi.encodeWithSignature("log()")); + } + + function logInt(int256 p0) internal view { + _sendLogPayload(abi.encodeWithSignature("log(int256)", p0)); + } + + function logUint(uint256 p0) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint256)", p0)); + } + + function logString(string memory p0) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string)", p0)); + } + + function logBool(bool p0) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool)", p0)); + } + + function logAddress(address p0) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address)", p0)); + } + + function logBytes(bytes memory p0) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bytes)", p0)); + } + + function logBytes1(bytes1 p0) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bytes1)", p0)); + } + + function logBytes2(bytes2 p0) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bytes2)", p0)); + } + + function logBytes3(bytes3 p0) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bytes3)", p0)); + } + + function logBytes4(bytes4 p0) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bytes4)", p0)); + } + + function logBytes5(bytes5 p0) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bytes5)", p0)); + } + + function logBytes6(bytes6 p0) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bytes6)", p0)); + } + + function logBytes7(bytes7 p0) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bytes7)", p0)); + } + + function logBytes8(bytes8 p0) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bytes8)", p0)); + } + + function logBytes9(bytes9 p0) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bytes9)", p0)); + } + + function logBytes10(bytes10 p0) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bytes10)", p0)); + } + + function logBytes11(bytes11 p0) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bytes11)", p0)); + } + + function logBytes12(bytes12 p0) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bytes12)", p0)); + } + + function logBytes13(bytes13 p0) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bytes13)", p0)); + } + + function logBytes14(bytes14 p0) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bytes14)", p0)); + } + + function logBytes15(bytes15 p0) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bytes15)", p0)); + } + + function logBytes16(bytes16 p0) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bytes16)", p0)); + } + + function logBytes17(bytes17 p0) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bytes17)", p0)); + } + + function logBytes18(bytes18 p0) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bytes18)", p0)); + } + + function logBytes19(bytes19 p0) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bytes19)", p0)); + } + + function logBytes20(bytes20 p0) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bytes20)", p0)); + } + + function logBytes21(bytes21 p0) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bytes21)", p0)); + } + + function logBytes22(bytes22 p0) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bytes22)", p0)); + } + + function logBytes23(bytes23 p0) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bytes23)", p0)); + } + + function logBytes24(bytes24 p0) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bytes24)", p0)); + } + + function logBytes25(bytes25 p0) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bytes25)", p0)); + } + + function logBytes26(bytes26 p0) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bytes26)", p0)); + } + + function logBytes27(bytes27 p0) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bytes27)", p0)); + } + + function logBytes28(bytes28 p0) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bytes28)", p0)); + } + + function logBytes29(bytes29 p0) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bytes29)", p0)); + } + + function logBytes30(bytes30 p0) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bytes30)", p0)); + } + + function logBytes31(bytes31 p0) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bytes31)", p0)); + } + + function logBytes32(bytes32 p0) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bytes32)", p0)); + } + + function log(uint256 p0) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint256)", p0)); + } + + function log(int256 p0) internal view { + _sendLogPayload(abi.encodeWithSignature("log(int256)", p0)); + } + + function log(string memory p0) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string)", p0)); + } + + function log(bool p0) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool)", p0)); + } + + function log(address p0) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address)", p0)); + } + + function log(uint256 p0, uint256 p1) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint256,uint256)", p0, p1)); + } + + function log(uint256 p0, string memory p1) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint256,string)", p0, p1)); + } + + function log(uint256 p0, bool p1) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint256,bool)", p0, p1)); + } + + function log(uint256 p0, address p1) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint256,address)", p0, p1)); + } + + function log(string memory p0, uint256 p1) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,uint256)", p0, p1)); + } + + function log(string memory p0, int256 p1) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,int256)", p0, p1)); + } + + function log(string memory p0, string memory p1) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,string)", p0, p1)); + } + + function log(string memory p0, bool p1) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,bool)", p0, p1)); + } + + function log(string memory p0, address p1) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,address)", p0, p1)); + } + + function log(bool p0, uint256 p1) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,uint256)", p0, p1)); + } + + function log(bool p0, string memory p1) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,string)", p0, p1)); + } + + function log(bool p0, bool p1) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,bool)", p0, p1)); + } + + function log(bool p0, address p1) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,address)", p0, p1)); + } + + function log(address p0, uint256 p1) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,uint256)", p0, p1)); + } + + function log(address p0, string memory p1) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,string)", p0, p1)); + } + + function log(address p0, bool p1) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,bool)", p0, p1)); + } + + function log(address p0, address p1) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,address)", p0, p1)); + } + + function log(uint256 p0, uint256 p1, uint256 p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint256,uint256,uint256)", p0, p1, p2)); + } + + function log(uint256 p0, uint256 p1, string memory p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint256,uint256,string)", p0, p1, p2)); + } + + function log(uint256 p0, uint256 p1, bool p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint256,uint256,bool)", p0, p1, p2)); + } + + function log(uint256 p0, uint256 p1, address p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint256,uint256,address)", p0, p1, p2)); + } + + function log(uint256 p0, string memory p1, uint256 p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint256,string,uint256)", p0, p1, p2)); + } + + function log(uint256 p0, string memory p1, string memory p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint256,string,string)", p0, p1, p2)); + } + + function log(uint256 p0, string memory p1, bool p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint256,string,bool)", p0, p1, p2)); + } + + function log(uint256 p0, string memory p1, address p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint256,string,address)", p0, p1, p2)); + } + + function log(uint256 p0, bool p1, uint256 p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint256,bool,uint256)", p0, p1, p2)); + } + + function log(uint256 p0, bool p1, string memory p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint256,bool,string)", p0, p1, p2)); + } + + function log(uint256 p0, bool p1, bool p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint256,bool,bool)", p0, p1, p2)); + } + + function log(uint256 p0, bool p1, address p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint256,bool,address)", p0, p1, p2)); + } + + function log(uint256 p0, address p1, uint256 p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint256,address,uint256)", p0, p1, p2)); + } + + function log(uint256 p0, address p1, string memory p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint256,address,string)", p0, p1, p2)); + } + + function log(uint256 p0, address p1, bool p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint256,address,bool)", p0, p1, p2)); + } + + function log(uint256 p0, address p1, address p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint256,address,address)", p0, p1, p2)); + } + + function log(string memory p0, uint256 p1, uint256 p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,uint256,uint256)", p0, p1, p2)); + } + + function log(string memory p0, uint256 p1, string memory p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,uint256,string)", p0, p1, p2)); + } + + function log(string memory p0, uint256 p1, bool p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,uint256,bool)", p0, p1, p2)); + } + + function log(string memory p0, uint256 p1, address p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,uint256,address)", p0, p1, p2)); + } + + function log(string memory p0, string memory p1, uint256 p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,string,uint256)", p0, p1, p2)); + } + + function log(string memory p0, string memory p1, string memory p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,string,string)", p0, p1, p2)); + } + + function log(string memory p0, string memory p1, bool p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,string,bool)", p0, p1, p2)); + } + + function log(string memory p0, string memory p1, address p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,string,address)", p0, p1, p2)); + } + + function log(string memory p0, bool p1, uint256 p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,bool,uint256)", p0, p1, p2)); + } + + function log(string memory p0, bool p1, string memory p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,bool,string)", p0, p1, p2)); + } + + function log(string memory p0, bool p1, bool p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,bool,bool)", p0, p1, p2)); + } + + function log(string memory p0, bool p1, address p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,bool,address)", p0, p1, p2)); + } + + function log(string memory p0, address p1, uint256 p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,address,uint256)", p0, p1, p2)); + } + + function log(string memory p0, address p1, string memory p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,address,string)", p0, p1, p2)); + } + + function log(string memory p0, address p1, bool p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,address,bool)", p0, p1, p2)); + } + + function log(string memory p0, address p1, address p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,address,address)", p0, p1, p2)); + } + + function log(bool p0, uint256 p1, uint256 p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,uint256,uint256)", p0, p1, p2)); + } + + function log(bool p0, uint256 p1, string memory p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,uint256,string)", p0, p1, p2)); + } + + function log(bool p0, uint256 p1, bool p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,uint256,bool)", p0, p1, p2)); + } + + function log(bool p0, uint256 p1, address p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,uint256,address)", p0, p1, p2)); + } + + function log(bool p0, string memory p1, uint256 p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,string,uint256)", p0, p1, p2)); + } + + function log(bool p0, string memory p1, string memory p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,string,string)", p0, p1, p2)); + } + + function log(bool p0, string memory p1, bool p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,string,bool)", p0, p1, p2)); + } + + function log(bool p0, string memory p1, address p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,string,address)", p0, p1, p2)); + } + + function log(bool p0, bool p1, uint256 p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,bool,uint256)", p0, p1, p2)); + } + + function log(bool p0, bool p1, string memory p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,bool,string)", p0, p1, p2)); + } + + function log(bool p0, bool p1, bool p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,bool,bool)", p0, p1, p2)); + } + + function log(bool p0, bool p1, address p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,bool,address)", p0, p1, p2)); + } + + function log(bool p0, address p1, uint256 p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,address,uint256)", p0, p1, p2)); + } + + function log(bool p0, address p1, string memory p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,address,string)", p0, p1, p2)); + } + + function log(bool p0, address p1, bool p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,address,bool)", p0, p1, p2)); + } + + function log(bool p0, address p1, address p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,address,address)", p0, p1, p2)); + } + + function log(address p0, uint256 p1, uint256 p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,uint256,uint256)", p0, p1, p2)); + } + + function log(address p0, uint256 p1, string memory p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,uint256,string)", p0, p1, p2)); + } + + function log(address p0, uint256 p1, bool p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,uint256,bool)", p0, p1, p2)); + } + + function log(address p0, uint256 p1, address p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,uint256,address)", p0, p1, p2)); + } + + function log(address p0, string memory p1, uint256 p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,string,uint256)", p0, p1, p2)); + } + + function log(address p0, string memory p1, string memory p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,string,string)", p0, p1, p2)); + } + + function log(address p0, string memory p1, bool p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,string,bool)", p0, p1, p2)); + } + + function log(address p0, string memory p1, address p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,string,address)", p0, p1, p2)); + } + + function log(address p0, bool p1, uint256 p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,bool,uint256)", p0, p1, p2)); + } + + function log(address p0, bool p1, string memory p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,bool,string)", p0, p1, p2)); + } + + function log(address p0, bool p1, bool p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,bool,bool)", p0, p1, p2)); + } + + function log(address p0, bool p1, address p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,bool,address)", p0, p1, p2)); + } + + function log(address p0, address p1, uint256 p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,address,uint256)", p0, p1, p2)); + } + + function log(address p0, address p1, string memory p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,address,string)", p0, p1, p2)); + } + + function log(address p0, address p1, bool p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,address,bool)", p0, p1, p2)); + } + + function log(address p0, address p1, address p2) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,address,address)", p0, p1, p2)); + } + + function log(uint256 p0, uint256 p1, uint256 p2, uint256 p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint256,uint256,uint256,uint256)", p0, p1, p2, p3)); + } + + function log(uint256 p0, uint256 p1, uint256 p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint256,uint256,uint256,string)", p0, p1, p2, p3)); + } + + function log(uint256 p0, uint256 p1, uint256 p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint256,uint256,uint256,bool)", p0, p1, p2, p3)); + } + + function log(uint256 p0, uint256 p1, uint256 p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint256,uint256,uint256,address)", p0, p1, p2, p3)); + } + + function log(uint256 p0, uint256 p1, string memory p2, uint256 p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint256,uint256,string,uint256)", p0, p1, p2, p3)); + } + + function log(uint256 p0, uint256 p1, string memory p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint256,uint256,string,string)", p0, p1, p2, p3)); + } + + function log(uint256 p0, uint256 p1, string memory p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint256,uint256,string,bool)", p0, p1, p2, p3)); + } + + function log(uint256 p0, uint256 p1, string memory p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint256,uint256,string,address)", p0, p1, p2, p3)); + } + + function log(uint256 p0, uint256 p1, bool p2, uint256 p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint256,uint256,bool,uint256)", p0, p1, p2, p3)); + } + + function log(uint256 p0, uint256 p1, bool p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint256,uint256,bool,string)", p0, p1, p2, p3)); + } + + function log(uint256 p0, uint256 p1, bool p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint256,uint256,bool,bool)", p0, p1, p2, p3)); + } + + function log(uint256 p0, uint256 p1, bool p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint256,uint256,bool,address)", p0, p1, p2, p3)); + } + + function log(uint256 p0, uint256 p1, address p2, uint256 p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint256,uint256,address,uint256)", p0, p1, p2, p3)); + } + + function log(uint256 p0, uint256 p1, address p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint256,uint256,address,string)", p0, p1, p2, p3)); + } + + function log(uint256 p0, uint256 p1, address p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint256,uint256,address,bool)", p0, p1, p2, p3)); + } + + function log(uint256 p0, uint256 p1, address p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint256,uint256,address,address)", p0, p1, p2, p3)); + } + + function log(uint256 p0, string memory p1, uint256 p2, uint256 p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint256,string,uint256,uint256)", p0, p1, p2, p3)); + } + + function log(uint256 p0, string memory p1, uint256 p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint256,string,uint256,string)", p0, p1, p2, p3)); + } + + function log(uint256 p0, string memory p1, uint256 p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint256,string,uint256,bool)", p0, p1, p2, p3)); + } + + function log(uint256 p0, string memory p1, uint256 p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint256,string,uint256,address)", p0, p1, p2, p3)); + } + + function log(uint256 p0, string memory p1, string memory p2, uint256 p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint256,string,string,uint256)", p0, p1, p2, p3)); + } + + function log(uint256 p0, string memory p1, string memory p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint256,string,string,string)", p0, p1, p2, p3)); + } + + function log(uint256 p0, string memory p1, string memory p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint256,string,string,bool)", p0, p1, p2, p3)); + } + + function log(uint256 p0, string memory p1, string memory p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint256,string,string,address)", p0, p1, p2, p3)); + } + + function log(uint256 p0, string memory p1, bool p2, uint256 p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint256,string,bool,uint256)", p0, p1, p2, p3)); + } + + function log(uint256 p0, string memory p1, bool p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint256,string,bool,string)", p0, p1, p2, p3)); + } + + function log(uint256 p0, string memory p1, bool p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint256,string,bool,bool)", p0, p1, p2, p3)); + } + + function log(uint256 p0, string memory p1, bool p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint256,string,bool,address)", p0, p1, p2, p3)); + } + + function log(uint256 p0, string memory p1, address p2, uint256 p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint256,string,address,uint256)", p0, p1, p2, p3)); + } + + function log(uint256 p0, string memory p1, address p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint256,string,address,string)", p0, p1, p2, p3)); + } + + function log(uint256 p0, string memory p1, address p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint256,string,address,bool)", p0, p1, p2, p3)); + } + + function log(uint256 p0, string memory p1, address p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint256,string,address,address)", p0, p1, p2, p3)); + } + + function log(uint256 p0, bool p1, uint256 p2, uint256 p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint256,bool,uint256,uint256)", p0, p1, p2, p3)); + } + + function log(uint256 p0, bool p1, uint256 p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint256,bool,uint256,string)", p0, p1, p2, p3)); + } + + function log(uint256 p0, bool p1, uint256 p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint256,bool,uint256,bool)", p0, p1, p2, p3)); + } + + function log(uint256 p0, bool p1, uint256 p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint256,bool,uint256,address)", p0, p1, p2, p3)); + } + + function log(uint256 p0, bool p1, string memory p2, uint256 p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint256,bool,string,uint256)", p0, p1, p2, p3)); + } + + function log(uint256 p0, bool p1, string memory p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint256,bool,string,string)", p0, p1, p2, p3)); + } + + function log(uint256 p0, bool p1, string memory p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint256,bool,string,bool)", p0, p1, p2, p3)); + } + + function log(uint256 p0, bool p1, string memory p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint256,bool,string,address)", p0, p1, p2, p3)); + } + + function log(uint256 p0, bool p1, bool p2, uint256 p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint256,bool,bool,uint256)", p0, p1, p2, p3)); + } + + function log(uint256 p0, bool p1, bool p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint256,bool,bool,string)", p0, p1, p2, p3)); + } + + function log(uint256 p0, bool p1, bool p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint256,bool,bool,bool)", p0, p1, p2, p3)); + } + + function log(uint256 p0, bool p1, bool p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint256,bool,bool,address)", p0, p1, p2, p3)); + } + + function log(uint256 p0, bool p1, address p2, uint256 p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint256,bool,address,uint256)", p0, p1, p2, p3)); + } + + function log(uint256 p0, bool p1, address p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint256,bool,address,string)", p0, p1, p2, p3)); + } + + function log(uint256 p0, bool p1, address p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint256,bool,address,bool)", p0, p1, p2, p3)); + } + + function log(uint256 p0, bool p1, address p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint256,bool,address,address)", p0, p1, p2, p3)); + } + + function log(uint256 p0, address p1, uint256 p2, uint256 p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint256,address,uint256,uint256)", p0, p1, p2, p3)); + } + + function log(uint256 p0, address p1, uint256 p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint256,address,uint256,string)", p0, p1, p2, p3)); + } + + function log(uint256 p0, address p1, uint256 p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint256,address,uint256,bool)", p0, p1, p2, p3)); + } + + function log(uint256 p0, address p1, uint256 p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint256,address,uint256,address)", p0, p1, p2, p3)); + } + + function log(uint256 p0, address p1, string memory p2, uint256 p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint256,address,string,uint256)", p0, p1, p2, p3)); + } + + function log(uint256 p0, address p1, string memory p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint256,address,string,string)", p0, p1, p2, p3)); + } + + function log(uint256 p0, address p1, string memory p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint256,address,string,bool)", p0, p1, p2, p3)); + } + + function log(uint256 p0, address p1, string memory p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint256,address,string,address)", p0, p1, p2, p3)); + } + + function log(uint256 p0, address p1, bool p2, uint256 p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint256,address,bool,uint256)", p0, p1, p2, p3)); + } + + function log(uint256 p0, address p1, bool p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint256,address,bool,string)", p0, p1, p2, p3)); + } + + function log(uint256 p0, address p1, bool p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint256,address,bool,bool)", p0, p1, p2, p3)); + } + + function log(uint256 p0, address p1, bool p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint256,address,bool,address)", p0, p1, p2, p3)); + } + + function log(uint256 p0, address p1, address p2, uint256 p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint256,address,address,uint256)", p0, p1, p2, p3)); + } + + function log(uint256 p0, address p1, address p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint256,address,address,string)", p0, p1, p2, p3)); + } + + function log(uint256 p0, address p1, address p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint256,address,address,bool)", p0, p1, p2, p3)); + } + + function log(uint256 p0, address p1, address p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(uint256,address,address,address)", p0, p1, p2, p3)); + } + + function log(string memory p0, uint256 p1, uint256 p2, uint256 p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,uint256,uint256,uint256)", p0, p1, p2, p3)); + } + + function log(string memory p0, uint256 p1, uint256 p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,uint256,uint256,string)", p0, p1, p2, p3)); + } + + function log(string memory p0, uint256 p1, uint256 p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,uint256,uint256,bool)", p0, p1, p2, p3)); + } + + function log(string memory p0, uint256 p1, uint256 p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,uint256,uint256,address)", p0, p1, p2, p3)); + } + + function log(string memory p0, uint256 p1, string memory p2, uint256 p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,uint256,string,uint256)", p0, p1, p2, p3)); + } + + function log(string memory p0, uint256 p1, string memory p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,uint256,string,string)", p0, p1, p2, p3)); + } + + function log(string memory p0, uint256 p1, string memory p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,uint256,string,bool)", p0, p1, p2, p3)); + } + + function log(string memory p0, uint256 p1, string memory p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,uint256,string,address)", p0, p1, p2, p3)); + } + + function log(string memory p0, uint256 p1, bool p2, uint256 p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,uint256,bool,uint256)", p0, p1, p2, p3)); + } + + function log(string memory p0, uint256 p1, bool p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,uint256,bool,string)", p0, p1, p2, p3)); + } + + function log(string memory p0, uint256 p1, bool p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,uint256,bool,bool)", p0, p1, p2, p3)); + } + + function log(string memory p0, uint256 p1, bool p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,uint256,bool,address)", p0, p1, p2, p3)); + } + + function log(string memory p0, uint256 p1, address p2, uint256 p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,uint256,address,uint256)", p0, p1, p2, p3)); + } + + function log(string memory p0, uint256 p1, address p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,uint256,address,string)", p0, p1, p2, p3)); + } + + function log(string memory p0, uint256 p1, address p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,uint256,address,bool)", p0, p1, p2, p3)); + } + + function log(string memory p0, uint256 p1, address p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,uint256,address,address)", p0, p1, p2, p3)); + } + + function log(string memory p0, string memory p1, uint256 p2, uint256 p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,string,uint256,uint256)", p0, p1, p2, p3)); + } + + function log(string memory p0, string memory p1, uint256 p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,string,uint256,string)", p0, p1, p2, p3)); + } + + function log(string memory p0, string memory p1, uint256 p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,string,uint256,bool)", p0, p1, p2, p3)); + } + + function log(string memory p0, string memory p1, uint256 p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,string,uint256,address)", p0, p1, p2, p3)); + } + + function log(string memory p0, string memory p1, string memory p2, uint256 p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,string,string,uint256)", p0, p1, p2, p3)); + } + + function log(string memory p0, string memory p1, string memory p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,string,string,string)", p0, p1, p2, p3)); + } + + function log(string memory p0, string memory p1, string memory p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,string,string,bool)", p0, p1, p2, p3)); + } + + function log(string memory p0, string memory p1, string memory p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,string,string,address)", p0, p1, p2, p3)); + } + + function log(string memory p0, string memory p1, bool p2, uint256 p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,string,bool,uint256)", p0, p1, p2, p3)); + } + + function log(string memory p0, string memory p1, bool p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,string,bool,string)", p0, p1, p2, p3)); + } + + function log(string memory p0, string memory p1, bool p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,string,bool,bool)", p0, p1, p2, p3)); + } + + function log(string memory p0, string memory p1, bool p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,string,bool,address)", p0, p1, p2, p3)); + } + + function log(string memory p0, string memory p1, address p2, uint256 p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,string,address,uint256)", p0, p1, p2, p3)); + } + + function log(string memory p0, string memory p1, address p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,string,address,string)", p0, p1, p2, p3)); + } + + function log(string memory p0, string memory p1, address p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,string,address,bool)", p0, p1, p2, p3)); + } + + function log(string memory p0, string memory p1, address p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,string,address,address)", p0, p1, p2, p3)); + } + + function log(string memory p0, bool p1, uint256 p2, uint256 p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,bool,uint256,uint256)", p0, p1, p2, p3)); + } + + function log(string memory p0, bool p1, uint256 p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,bool,uint256,string)", p0, p1, p2, p3)); + } + + function log(string memory p0, bool p1, uint256 p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,bool,uint256,bool)", p0, p1, p2, p3)); + } + + function log(string memory p0, bool p1, uint256 p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,bool,uint256,address)", p0, p1, p2, p3)); + } + + function log(string memory p0, bool p1, string memory p2, uint256 p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,bool,string,uint256)", p0, p1, p2, p3)); + } + + function log(string memory p0, bool p1, string memory p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,bool,string,string)", p0, p1, p2, p3)); + } + + function log(string memory p0, bool p1, string memory p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,bool,string,bool)", p0, p1, p2, p3)); + } + + function log(string memory p0, bool p1, string memory p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,bool,string,address)", p0, p1, p2, p3)); + } + + function log(string memory p0, bool p1, bool p2, uint256 p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,bool,bool,uint256)", p0, p1, p2, p3)); + } + + function log(string memory p0, bool p1, bool p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,bool,bool,string)", p0, p1, p2, p3)); + } + + function log(string memory p0, bool p1, bool p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,bool,bool,bool)", p0, p1, p2, p3)); + } + + function log(string memory p0, bool p1, bool p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,bool,bool,address)", p0, p1, p2, p3)); + } + + function log(string memory p0, bool p1, address p2, uint256 p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,bool,address,uint256)", p0, p1, p2, p3)); + } + + function log(string memory p0, bool p1, address p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,bool,address,string)", p0, p1, p2, p3)); + } + + function log(string memory p0, bool p1, address p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,bool,address,bool)", p0, p1, p2, p3)); + } + + function log(string memory p0, bool p1, address p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,bool,address,address)", p0, p1, p2, p3)); + } + + function log(string memory p0, address p1, uint256 p2, uint256 p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,address,uint256,uint256)", p0, p1, p2, p3)); + } + + function log(string memory p0, address p1, uint256 p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,address,uint256,string)", p0, p1, p2, p3)); + } + + function log(string memory p0, address p1, uint256 p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,address,uint256,bool)", p0, p1, p2, p3)); + } + + function log(string memory p0, address p1, uint256 p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,address,uint256,address)", p0, p1, p2, p3)); + } + + function log(string memory p0, address p1, string memory p2, uint256 p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,address,string,uint256)", p0, p1, p2, p3)); + } + + function log(string memory p0, address p1, string memory p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,address,string,string)", p0, p1, p2, p3)); + } + + function log(string memory p0, address p1, string memory p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,address,string,bool)", p0, p1, p2, p3)); + } + + function log(string memory p0, address p1, string memory p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,address,string,address)", p0, p1, p2, p3)); + } + + function log(string memory p0, address p1, bool p2, uint256 p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,address,bool,uint256)", p0, p1, p2, p3)); + } + + function log(string memory p0, address p1, bool p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,address,bool,string)", p0, p1, p2, p3)); + } + + function log(string memory p0, address p1, bool p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,address,bool,bool)", p0, p1, p2, p3)); + } + + function log(string memory p0, address p1, bool p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,address,bool,address)", p0, p1, p2, p3)); + } + + function log(string memory p0, address p1, address p2, uint256 p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,address,address,uint256)", p0, p1, p2, p3)); + } + + function log(string memory p0, address p1, address p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,address,address,string)", p0, p1, p2, p3)); + } + + function log(string memory p0, address p1, address p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,address,address,bool)", p0, p1, p2, p3)); + } + + function log(string memory p0, address p1, address p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(string,address,address,address)", p0, p1, p2, p3)); + } + + function log(bool p0, uint256 p1, uint256 p2, uint256 p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,uint256,uint256,uint256)", p0, p1, p2, p3)); + } + + function log(bool p0, uint256 p1, uint256 p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,uint256,uint256,string)", p0, p1, p2, p3)); + } + + function log(bool p0, uint256 p1, uint256 p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,uint256,uint256,bool)", p0, p1, p2, p3)); + } + + function log(bool p0, uint256 p1, uint256 p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,uint256,uint256,address)", p0, p1, p2, p3)); + } + + function log(bool p0, uint256 p1, string memory p2, uint256 p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,uint256,string,uint256)", p0, p1, p2, p3)); + } + + function log(bool p0, uint256 p1, string memory p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,uint256,string,string)", p0, p1, p2, p3)); + } + + function log(bool p0, uint256 p1, string memory p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,uint256,string,bool)", p0, p1, p2, p3)); + } + + function log(bool p0, uint256 p1, string memory p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,uint256,string,address)", p0, p1, p2, p3)); + } + + function log(bool p0, uint256 p1, bool p2, uint256 p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,uint256,bool,uint256)", p0, p1, p2, p3)); + } + + function log(bool p0, uint256 p1, bool p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,uint256,bool,string)", p0, p1, p2, p3)); + } + + function log(bool p0, uint256 p1, bool p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,uint256,bool,bool)", p0, p1, p2, p3)); + } + + function log(bool p0, uint256 p1, bool p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,uint256,bool,address)", p0, p1, p2, p3)); + } + + function log(bool p0, uint256 p1, address p2, uint256 p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,uint256,address,uint256)", p0, p1, p2, p3)); + } + + function log(bool p0, uint256 p1, address p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,uint256,address,string)", p0, p1, p2, p3)); + } + + function log(bool p0, uint256 p1, address p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,uint256,address,bool)", p0, p1, p2, p3)); + } + + function log(bool p0, uint256 p1, address p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,uint256,address,address)", p0, p1, p2, p3)); + } + + function log(bool p0, string memory p1, uint256 p2, uint256 p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,string,uint256,uint256)", p0, p1, p2, p3)); + } + + function log(bool p0, string memory p1, uint256 p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,string,uint256,string)", p0, p1, p2, p3)); + } + + function log(bool p0, string memory p1, uint256 p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,string,uint256,bool)", p0, p1, p2, p3)); + } + + function log(bool p0, string memory p1, uint256 p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,string,uint256,address)", p0, p1, p2, p3)); + } + + function log(bool p0, string memory p1, string memory p2, uint256 p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,string,string,uint256)", p0, p1, p2, p3)); + } + + function log(bool p0, string memory p1, string memory p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,string,string,string)", p0, p1, p2, p3)); + } + + function log(bool p0, string memory p1, string memory p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,string,string,bool)", p0, p1, p2, p3)); + } + + function log(bool p0, string memory p1, string memory p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,string,string,address)", p0, p1, p2, p3)); + } + + function log(bool p0, string memory p1, bool p2, uint256 p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,string,bool,uint256)", p0, p1, p2, p3)); + } + + function log(bool p0, string memory p1, bool p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,string,bool,string)", p0, p1, p2, p3)); + } + + function log(bool p0, string memory p1, bool p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,string,bool,bool)", p0, p1, p2, p3)); + } + + function log(bool p0, string memory p1, bool p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,string,bool,address)", p0, p1, p2, p3)); + } + + function log(bool p0, string memory p1, address p2, uint256 p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,string,address,uint256)", p0, p1, p2, p3)); + } + + function log(bool p0, string memory p1, address p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,string,address,string)", p0, p1, p2, p3)); + } + + function log(bool p0, string memory p1, address p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,string,address,bool)", p0, p1, p2, p3)); + } + + function log(bool p0, string memory p1, address p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,string,address,address)", p0, p1, p2, p3)); + } + + function log(bool p0, bool p1, uint256 p2, uint256 p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,bool,uint256,uint256)", p0, p1, p2, p3)); + } + + function log(bool p0, bool p1, uint256 p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,bool,uint256,string)", p0, p1, p2, p3)); + } + + function log(bool p0, bool p1, uint256 p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,bool,uint256,bool)", p0, p1, p2, p3)); + } + + function log(bool p0, bool p1, uint256 p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,bool,uint256,address)", p0, p1, p2, p3)); + } + + function log(bool p0, bool p1, string memory p2, uint256 p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,bool,string,uint256)", p0, p1, p2, p3)); + } + + function log(bool p0, bool p1, string memory p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,bool,string,string)", p0, p1, p2, p3)); + } + + function log(bool p0, bool p1, string memory p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,bool,string,bool)", p0, p1, p2, p3)); + } + + function log(bool p0, bool p1, string memory p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,bool,string,address)", p0, p1, p2, p3)); + } + + function log(bool p0, bool p1, bool p2, uint256 p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,bool,bool,uint256)", p0, p1, p2, p3)); + } + + function log(bool p0, bool p1, bool p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,bool,bool,string)", p0, p1, p2, p3)); + } + + function log(bool p0, bool p1, bool p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,bool,bool,bool)", p0, p1, p2, p3)); + } + + function log(bool p0, bool p1, bool p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,bool,bool,address)", p0, p1, p2, p3)); + } + + function log(bool p0, bool p1, address p2, uint256 p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,bool,address,uint256)", p0, p1, p2, p3)); + } + + function log(bool p0, bool p1, address p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,bool,address,string)", p0, p1, p2, p3)); + } + + function log(bool p0, bool p1, address p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,bool,address,bool)", p0, p1, p2, p3)); + } + + function log(bool p0, bool p1, address p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,bool,address,address)", p0, p1, p2, p3)); + } + + function log(bool p0, address p1, uint256 p2, uint256 p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,address,uint256,uint256)", p0, p1, p2, p3)); + } + + function log(bool p0, address p1, uint256 p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,address,uint256,string)", p0, p1, p2, p3)); + } + + function log(bool p0, address p1, uint256 p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,address,uint256,bool)", p0, p1, p2, p3)); + } + + function log(bool p0, address p1, uint256 p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,address,uint256,address)", p0, p1, p2, p3)); + } + + function log(bool p0, address p1, string memory p2, uint256 p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,address,string,uint256)", p0, p1, p2, p3)); + } + + function log(bool p0, address p1, string memory p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,address,string,string)", p0, p1, p2, p3)); + } + + function log(bool p0, address p1, string memory p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,address,string,bool)", p0, p1, p2, p3)); + } + + function log(bool p0, address p1, string memory p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,address,string,address)", p0, p1, p2, p3)); + } + + function log(bool p0, address p1, bool p2, uint256 p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,address,bool,uint256)", p0, p1, p2, p3)); + } + + function log(bool p0, address p1, bool p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,address,bool,string)", p0, p1, p2, p3)); + } + + function log(bool p0, address p1, bool p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,address,bool,bool)", p0, p1, p2, p3)); + } + + function log(bool p0, address p1, bool p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,address,bool,address)", p0, p1, p2, p3)); + } + + function log(bool p0, address p1, address p2, uint256 p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,address,address,uint256)", p0, p1, p2, p3)); + } + + function log(bool p0, address p1, address p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,address,address,string)", p0, p1, p2, p3)); + } + + function log(bool p0, address p1, address p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,address,address,bool)", p0, p1, p2, p3)); + } + + function log(bool p0, address p1, address p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(bool,address,address,address)", p0, p1, p2, p3)); + } + + function log(address p0, uint256 p1, uint256 p2, uint256 p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,uint256,uint256,uint256)", p0, p1, p2, p3)); + } + + function log(address p0, uint256 p1, uint256 p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,uint256,uint256,string)", p0, p1, p2, p3)); + } + + function log(address p0, uint256 p1, uint256 p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,uint256,uint256,bool)", p0, p1, p2, p3)); + } + + function log(address p0, uint256 p1, uint256 p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,uint256,uint256,address)", p0, p1, p2, p3)); + } + + function log(address p0, uint256 p1, string memory p2, uint256 p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,uint256,string,uint256)", p0, p1, p2, p3)); + } + + function log(address p0, uint256 p1, string memory p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,uint256,string,string)", p0, p1, p2, p3)); + } + + function log(address p0, uint256 p1, string memory p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,uint256,string,bool)", p0, p1, p2, p3)); + } + + function log(address p0, uint256 p1, string memory p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,uint256,string,address)", p0, p1, p2, p3)); + } + + function log(address p0, uint256 p1, bool p2, uint256 p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,uint256,bool,uint256)", p0, p1, p2, p3)); + } + + function log(address p0, uint256 p1, bool p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,uint256,bool,string)", p0, p1, p2, p3)); + } + + function log(address p0, uint256 p1, bool p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,uint256,bool,bool)", p0, p1, p2, p3)); + } + + function log(address p0, uint256 p1, bool p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,uint256,bool,address)", p0, p1, p2, p3)); + } + + function log(address p0, uint256 p1, address p2, uint256 p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,uint256,address,uint256)", p0, p1, p2, p3)); + } + + function log(address p0, uint256 p1, address p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,uint256,address,string)", p0, p1, p2, p3)); + } + + function log(address p0, uint256 p1, address p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,uint256,address,bool)", p0, p1, p2, p3)); + } + + function log(address p0, uint256 p1, address p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,uint256,address,address)", p0, p1, p2, p3)); + } + + function log(address p0, string memory p1, uint256 p2, uint256 p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,string,uint256,uint256)", p0, p1, p2, p3)); + } + + function log(address p0, string memory p1, uint256 p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,string,uint256,string)", p0, p1, p2, p3)); + } + + function log(address p0, string memory p1, uint256 p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,string,uint256,bool)", p0, p1, p2, p3)); + } + + function log(address p0, string memory p1, uint256 p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,string,uint256,address)", p0, p1, p2, p3)); + } + + function log(address p0, string memory p1, string memory p2, uint256 p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,string,string,uint256)", p0, p1, p2, p3)); + } + + function log(address p0, string memory p1, string memory p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,string,string,string)", p0, p1, p2, p3)); + } + + function log(address p0, string memory p1, string memory p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,string,string,bool)", p0, p1, p2, p3)); + } + + function log(address p0, string memory p1, string memory p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,string,string,address)", p0, p1, p2, p3)); + } + + function log(address p0, string memory p1, bool p2, uint256 p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,string,bool,uint256)", p0, p1, p2, p3)); + } + + function log(address p0, string memory p1, bool p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,string,bool,string)", p0, p1, p2, p3)); + } + + function log(address p0, string memory p1, bool p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,string,bool,bool)", p0, p1, p2, p3)); + } + + function log(address p0, string memory p1, bool p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,string,bool,address)", p0, p1, p2, p3)); + } + + function log(address p0, string memory p1, address p2, uint256 p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,string,address,uint256)", p0, p1, p2, p3)); + } + + function log(address p0, string memory p1, address p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,string,address,string)", p0, p1, p2, p3)); + } + + function log(address p0, string memory p1, address p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,string,address,bool)", p0, p1, p2, p3)); + } + + function log(address p0, string memory p1, address p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,string,address,address)", p0, p1, p2, p3)); + } + + function log(address p0, bool p1, uint256 p2, uint256 p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,bool,uint256,uint256)", p0, p1, p2, p3)); + } + + function log(address p0, bool p1, uint256 p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,bool,uint256,string)", p0, p1, p2, p3)); + } + + function log(address p0, bool p1, uint256 p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,bool,uint256,bool)", p0, p1, p2, p3)); + } + + function log(address p0, bool p1, uint256 p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,bool,uint256,address)", p0, p1, p2, p3)); + } + + function log(address p0, bool p1, string memory p2, uint256 p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,bool,string,uint256)", p0, p1, p2, p3)); + } + + function log(address p0, bool p1, string memory p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,bool,string,string)", p0, p1, p2, p3)); + } + + function log(address p0, bool p1, string memory p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,bool,string,bool)", p0, p1, p2, p3)); + } + + function log(address p0, bool p1, string memory p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,bool,string,address)", p0, p1, p2, p3)); + } + + function log(address p0, bool p1, bool p2, uint256 p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,bool,bool,uint256)", p0, p1, p2, p3)); + } + + function log(address p0, bool p1, bool p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,bool,bool,string)", p0, p1, p2, p3)); + } + + function log(address p0, bool p1, bool p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,bool,bool,bool)", p0, p1, p2, p3)); + } + + function log(address p0, bool p1, bool p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,bool,bool,address)", p0, p1, p2, p3)); + } + + function log(address p0, bool p1, address p2, uint256 p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,bool,address,uint256)", p0, p1, p2, p3)); + } + + function log(address p0, bool p1, address p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,bool,address,string)", p0, p1, p2, p3)); + } + + function log(address p0, bool p1, address p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,bool,address,bool)", p0, p1, p2, p3)); + } + + function log(address p0, bool p1, address p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,bool,address,address)", p0, p1, p2, p3)); + } + + function log(address p0, address p1, uint256 p2, uint256 p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,address,uint256,uint256)", p0, p1, p2, p3)); + } + + function log(address p0, address p1, uint256 p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,address,uint256,string)", p0, p1, p2, p3)); + } + + function log(address p0, address p1, uint256 p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,address,uint256,bool)", p0, p1, p2, p3)); + } + + function log(address p0, address p1, uint256 p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,address,uint256,address)", p0, p1, p2, p3)); + } + + function log(address p0, address p1, string memory p2, uint256 p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,address,string,uint256)", p0, p1, p2, p3)); + } + + function log(address p0, address p1, string memory p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,address,string,string)", p0, p1, p2, p3)); + } + + function log(address p0, address p1, string memory p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,address,string,bool)", p0, p1, p2, p3)); + } + + function log(address p0, address p1, string memory p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,address,string,address)", p0, p1, p2, p3)); + } + + function log(address p0, address p1, bool p2, uint256 p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,address,bool,uint256)", p0, p1, p2, p3)); + } + + function log(address p0, address p1, bool p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,address,bool,string)", p0, p1, p2, p3)); + } + + function log(address p0, address p1, bool p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,address,bool,bool)", p0, p1, p2, p3)); + } + + function log(address p0, address p1, bool p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,address,bool,address)", p0, p1, p2, p3)); + } + + function log(address p0, address p1, address p2, uint256 p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,address,address,uint256)", p0, p1, p2, p3)); + } + + function log(address p0, address p1, address p2, string memory p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,address,address,string)", p0, p1, p2, p3)); + } + + function log(address p0, address p1, address p2, bool p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,address,address,bool)", p0, p1, p2, p3)); + } + + function log(address p0, address p1, address p2, address p3) internal view { + _sendLogPayload(abi.encodeWithSignature("log(address,address,address,address)", p0, p1, p2, p3)); + } + +} \ No newline at end of file diff --git a/lib/openzeppelin-contracts/lib/forge-std/src/interfaces/IERC1155.sol b/lib/openzeppelin-contracts/lib/forge-std/src/interfaces/IERC1155.sol new file mode 100644 index 0000000..f7dd2b4 --- /dev/null +++ b/lib/openzeppelin-contracts/lib/forge-std/src/interfaces/IERC1155.sol @@ -0,0 +1,105 @@ +// SPDX-License-Identifier: MIT +pragma solidity >=0.6.2; + +import "./IERC165.sol"; + +/// @title ERC-1155 Multi Token Standard +/// @dev See https://eips.ethereum.org/EIPS/eip-1155 +/// Note: The ERC-165 identifier for this interface is 0xd9b67a26. +interface IERC1155 is IERC165 { + /// @dev + /// - Either `TransferSingle` or `TransferBatch` MUST emit when tokens are transferred, including zero value transfers as well as minting or burning (see "Safe Transfer Rules" section of the standard). + /// - The `_operator` argument MUST be the address of an account/contract that is approved to make the transfer (SHOULD be msg.sender). + /// - The `_from` argument MUST be the address of the holder whose balance is decreased. + /// - The `_to` argument MUST be the address of the recipient whose balance is increased. + /// - The `_id` argument MUST be the token type being transferred. + /// - The `_value` argument MUST be the number of tokens the holder balance is decreased by and match what the recipient balance is increased by. + /// - When minting/creating tokens, the `_from` argument MUST be set to `0x0` (i.e. zero address). + /// - When burning/destroying tokens, the `_to` argument MUST be set to `0x0` (i.e. zero address). + event TransferSingle( + address indexed _operator, address indexed _from, address indexed _to, uint256 _id, uint256 _value + ); + + /// @dev + /// - Either `TransferSingle` or `TransferBatch` MUST emit when tokens are transferred, including zero value transfers as well as minting or burning (see "Safe Transfer Rules" section of the standard). + /// - The `_operator` argument MUST be the address of an account/contract that is approved to make the transfer (SHOULD be msg.sender). + /// - The `_from` argument MUST be the address of the holder whose balance is decreased. + /// - The `_to` argument MUST be the address of the recipient whose balance is increased. + /// - The `_ids` argument MUST be the list of tokens being transferred. + /// - The `_values` argument MUST be the list of number of tokens (matching the list and order of tokens specified in _ids) the holder balance is decreased by and match what the recipient balance is increased by. + /// - When minting/creating tokens, the `_from` argument MUST be set to `0x0` (i.e. zero address). + /// - When burning/destroying tokens, the `_to` argument MUST be set to `0x0` (i.e. zero address). + event TransferBatch( + address indexed _operator, address indexed _from, address indexed _to, uint256[] _ids, uint256[] _values + ); + + /// @dev MUST emit when approval for a second party/operator address to manage all tokens for an owner address is enabled or disabled (absence of an event assumes disabled). + event ApprovalForAll(address indexed _owner, address indexed _operator, bool _approved); + + /// @dev MUST emit when the URI is updated for a token ID. URIs are defined in RFC 3986. + /// The URI MUST point to a JSON file that conforms to the "ERC-1155 Metadata URI JSON Schema". + event URI(string _value, uint256 indexed _id); + + /// @notice Transfers `_value` amount of an `_id` from the `_from` address to the `_to` address specified (with safety call). + /// @dev Caller must be approved to manage the tokens being transferred out of the `_from` account (see "Approval" section of the standard). + /// - MUST revert if `_to` is the zero address. + /// - MUST revert if balance of holder for token `_id` is lower than the `_value` sent. + /// - MUST revert on any other error. + /// - MUST emit the `TransferSingle` event to reflect the balance change (see "Safe Transfer Rules" section of the standard). + /// - After the above conditions are met, this function MUST check if `_to` is a smart contract (e.g. code size > 0). If so, it MUST call `onERC1155Received` on `_to` and act appropriately (see "Safe Transfer Rules" section of the standard). + /// @param _from Source address + /// @param _to Target address + /// @param _id ID of the token type + /// @param _value Transfer amount + /// @param _data Additional data with no specified format, MUST be sent unaltered in call to `onERC1155Received` on `_to` + function safeTransferFrom(address _from, address _to, uint256 _id, uint256 _value, bytes calldata _data) external; + + /// @notice Transfers `_values` amount(s) of `_ids` from the `_from` address to the `_to` address specified (with safety call). + /// @dev Caller must be approved to manage the tokens being transferred out of the `_from` account (see "Approval" section of the standard). + /// - MUST revert if `_to` is the zero address. + /// - MUST revert if length of `_ids` is not the same as length of `_values`. + /// - MUST revert if any of the balance(s) of the holder(s) for token(s) in `_ids` is lower than the respective amount(s) in `_values` sent to the recipient. + /// - MUST revert on any other error. + /// - MUST emit `TransferSingle` or `TransferBatch` event(s) such that all the balance changes are reflected (see "Safe Transfer Rules" section of the standard). + /// - Balance changes and events MUST follow the ordering of the arrays (_ids[0]/_values[0] before _ids[1]/_values[1], etc). + /// - After the above conditions for the transfer(s) in the batch are met, this function MUST check if `_to` is a smart contract (e.g. code size > 0). If so, it MUST call the relevant `ERC1155TokenReceiver` hook(s) on `_to` and act appropriately (see "Safe Transfer Rules" section of the standard). + /// @param _from Source address + /// @param _to Target address + /// @param _ids IDs of each token type (order and length must match _values array) + /// @param _values Transfer amounts per token type (order and length must match _ids array) + /// @param _data Additional data with no specified format, MUST be sent unaltered in call to the `ERC1155TokenReceiver` hook(s) on `_to` + function safeBatchTransferFrom( + address _from, + address _to, + uint256[] calldata _ids, + uint256[] calldata _values, + bytes calldata _data + ) external; + + /// @notice Get the balance of an account's tokens. + /// @param _owner The address of the token holder + /// @param _id ID of the token + /// @return The _owner's balance of the token type requested + function balanceOf(address _owner, uint256 _id) external view returns (uint256); + + /// @notice Get the balance of multiple account/token pairs + /// @param _owners The addresses of the token holders + /// @param _ids ID of the tokens + /// @return The _owner's balance of the token types requested (i.e. balance for each (owner, id) pair) + function balanceOfBatch(address[] calldata _owners, uint256[] calldata _ids) + external + view + returns (uint256[] memory); + + /// @notice Enable or disable approval for a third party ("operator") to manage all of the caller's tokens. + /// @dev MUST emit the ApprovalForAll event on success. + /// @param _operator Address to add to the set of authorized operators + /// @param _approved True if the operator is approved, false to revoke approval + function setApprovalForAll(address _operator, bool _approved) external; + + /// @notice Queries the approval status of an operator for a given owner. + /// @param _owner The owner of the tokens + /// @param _operator Address of authorized operator + /// @return True if the operator is approved, false if not + function isApprovedForAll(address _owner, address _operator) external view returns (bool); +} diff --git a/lib/openzeppelin-contracts/lib/forge-std/src/interfaces/IERC165.sol b/lib/openzeppelin-contracts/lib/forge-std/src/interfaces/IERC165.sol new file mode 100644 index 0000000..9af4bf8 --- /dev/null +++ b/lib/openzeppelin-contracts/lib/forge-std/src/interfaces/IERC165.sol @@ -0,0 +1,12 @@ +// SPDX-License-Identifier: MIT +pragma solidity >=0.6.2; + +interface IERC165 { + /// @notice Query if a contract implements an interface + /// @param interfaceID The interface identifier, as specified in ERC-165 + /// @dev Interface identification is specified in ERC-165. This function + /// uses less than 30,000 gas. + /// @return `true` if the contract implements `interfaceID` and + /// `interfaceID` is not 0xffffffff, `false` otherwise + function supportsInterface(bytes4 interfaceID) external view returns (bool); +} diff --git a/lib/openzeppelin-contracts/lib/forge-std/src/interfaces/IERC20.sol b/lib/openzeppelin-contracts/lib/forge-std/src/interfaces/IERC20.sol new file mode 100644 index 0000000..ba40806 --- /dev/null +++ b/lib/openzeppelin-contracts/lib/forge-std/src/interfaces/IERC20.sol @@ -0,0 +1,43 @@ +// SPDX-License-Identifier: MIT +pragma solidity >=0.6.2; + +/// @dev Interface of the ERC20 standard as defined in the EIP. +/// @dev This includes the optional name, symbol, and decimals metadata. +interface IERC20 { + /// @dev Emitted when `value` tokens are moved from one account (`from`) to another (`to`). + event Transfer(address indexed from, address indexed to, uint256 value); + + /// @dev Emitted when the allowance of a `spender` for an `owner` is set, where `value` + /// is the new allowance. + event Approval(address indexed owner, address indexed spender, uint256 value); + + /// @notice Returns the amount of tokens in existence. + function totalSupply() external view returns (uint256); + + /// @notice Returns the amount of tokens owned by `account`. + function balanceOf(address account) external view returns (uint256); + + /// @notice Moves `amount` tokens from the caller's account to `to`. + function transfer(address to, uint256 amount) external returns (bool); + + /// @notice Returns the remaining number of tokens that `spender` is allowed + /// to spend on behalf of `owner` + function allowance(address owner, address spender) external view returns (uint256); + + /// @notice Sets `amount` as the allowance of `spender` over the caller's tokens. + /// @dev Be aware of front-running risks: https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729 + function approve(address spender, uint256 amount) external returns (bool); + + /// @notice Moves `amount` tokens from `from` to `to` using the allowance mechanism. + /// `amount` is then deducted from the caller's allowance. + function transferFrom(address from, address to, uint256 amount) external returns (bool); + + /// @notice Returns the name of the token. + function name() external view returns (string memory); + + /// @notice Returns the symbol of the token. + function symbol() external view returns (string memory); + + /// @notice Returns the decimals places of the token. + function decimals() external view returns (uint8); +} diff --git a/lib/openzeppelin-contracts/lib/forge-std/src/interfaces/IERC4626.sol b/lib/openzeppelin-contracts/lib/forge-std/src/interfaces/IERC4626.sol new file mode 100644 index 0000000..bfe3a11 --- /dev/null +++ b/lib/openzeppelin-contracts/lib/forge-std/src/interfaces/IERC4626.sol @@ -0,0 +1,190 @@ +// SPDX-License-Identifier: MIT +pragma solidity >=0.6.2; + +import "./IERC20.sol"; + +/// @dev Interface of the ERC4626 "Tokenized Vault Standard", as defined in +/// https://eips.ethereum.org/EIPS/eip-4626 +interface IERC4626 is IERC20 { + event Deposit(address indexed sender, address indexed owner, uint256 assets, uint256 shares); + + event Withdraw( + address indexed sender, address indexed receiver, address indexed owner, uint256 assets, uint256 shares + ); + + /// @notice Returns the address of the underlying token used for the Vault for accounting, depositing, and withdrawing. + /// @dev + /// - MUST be an ERC-20 token contract. + /// - MUST NOT revert. + function asset() external view returns (address assetTokenAddress); + + /// @notice Returns the total amount of the underlying asset that is “managed” by Vault. + /// @dev + /// - SHOULD include any compounding that occurs from yield. + /// - MUST be inclusive of any fees that are charged against assets in the Vault. + /// - MUST NOT revert. + function totalAssets() external view returns (uint256 totalManagedAssets); + + /// @notice Returns the amount of shares that the Vault would exchange for the amount of assets provided, in an ideal + /// scenario where all the conditions are met. + /// @dev + /// - MUST NOT be inclusive of any fees that are charged against assets in the Vault. + /// - MUST NOT show any variations depending on the caller. + /// - MUST NOT reflect slippage or other on-chain conditions, when performing the actual exchange. + /// - MUST NOT revert. + /// + /// NOTE: This calculation MAY NOT reflect the “per-user” price-per-share, and instead should reflect the + /// “average-user’s” price-per-share, meaning what the average user should expect to see when exchanging to and + /// from. + function convertToShares(uint256 assets) external view returns (uint256 shares); + + /// @notice Returns the amount of assets that the Vault would exchange for the amount of shares provided, in an ideal + /// scenario where all the conditions are met. + /// @dev + /// - MUST NOT be inclusive of any fees that are charged against assets in the Vault. + /// - MUST NOT show any variations depending on the caller. + /// - MUST NOT reflect slippage or other on-chain conditions, when performing the actual exchange. + /// - MUST NOT revert. + /// + /// NOTE: This calculation MAY NOT reflect the “per-user” price-per-share, and instead should reflect the + /// “average-user’s” price-per-share, meaning what the average user should expect to see when exchanging to and + /// from. + function convertToAssets(uint256 shares) external view returns (uint256 assets); + + /// @notice Returns the maximum amount of the underlying asset that can be deposited into the Vault for the receiver, + /// through a deposit call. + /// @dev + /// - MUST return a limited value if receiver is subject to some deposit limit. + /// - MUST return 2 ** 256 - 1 if there is no limit on the maximum amount of assets that may be deposited. + /// - MUST NOT revert. + function maxDeposit(address receiver) external view returns (uint256 maxAssets); + + /// @notice Allows an on-chain or off-chain user to simulate the effects of their deposit at the current block, given + /// current on-chain conditions. + /// @dev + /// - MUST return as close to and no more than the exact amount of Vault shares that would be minted in a deposit + /// call in the same transaction. I.e. deposit should return the same or more shares as previewDeposit if called + /// in the same transaction. + /// - MUST NOT account for deposit limits like those returned from maxDeposit and should always act as though the + /// deposit would be accepted, regardless if the user has enough tokens approved, etc. + /// - MUST be inclusive of deposit fees. Integrators should be aware of the existence of deposit fees. + /// - MUST NOT revert. + /// + /// NOTE: any unfavorable discrepancy between convertToShares and previewDeposit SHOULD be considered slippage in + /// share price or some other type of condition, meaning the depositor will lose assets by depositing. + function previewDeposit(uint256 assets) external view returns (uint256 shares); + + /// @notice Mints shares Vault shares to receiver by depositing exactly amount of underlying tokens. + /// @dev + /// - MUST emit the Deposit event. + /// - MAY support an additional flow in which the underlying tokens are owned by the Vault contract before the + /// deposit execution, and are accounted for during deposit. + /// - MUST revert if all of assets cannot be deposited (due to deposit limit being reached, slippage, the user not + /// approving enough underlying tokens to the Vault contract, etc). + /// + /// NOTE: most implementations will require pre-approval of the Vault with the Vault’s underlying asset token. + function deposit(uint256 assets, address receiver) external returns (uint256 shares); + + /// @notice Returns the maximum amount of the Vault shares that can be minted for the receiver, through a mint call. + /// @dev + /// - MUST return a limited value if receiver is subject to some mint limit. + /// - MUST return 2 ** 256 - 1 if there is no limit on the maximum amount of shares that may be minted. + /// - MUST NOT revert. + function maxMint(address receiver) external view returns (uint256 maxShares); + + /// @notice Allows an on-chain or off-chain user to simulate the effects of their mint at the current block, given + /// current on-chain conditions. + /// @dev + /// - MUST return as close to and no fewer than the exact amount of assets that would be deposited in a mint call + /// in the same transaction. I.e. mint should return the same or fewer assets as previewMint if called in the + /// same transaction. + /// - MUST NOT account for mint limits like those returned from maxMint and should always act as though the mint + /// would be accepted, regardless if the user has enough tokens approved, etc. + /// - MUST be inclusive of deposit fees. Integrators should be aware of the existence of deposit fees. + /// - MUST NOT revert. + /// + /// NOTE: any unfavorable discrepancy between convertToAssets and previewMint SHOULD be considered slippage in + /// share price or some other type of condition, meaning the depositor will lose assets by minting. + function previewMint(uint256 shares) external view returns (uint256 assets); + + /// @notice Mints exactly shares Vault shares to receiver by depositing amount of underlying tokens. + /// @dev + /// - MUST emit the Deposit event. + /// - MAY support an additional flow in which the underlying tokens are owned by the Vault contract before the mint + /// execution, and are accounted for during mint. + /// - MUST revert if all of shares cannot be minted (due to deposit limit being reached, slippage, the user not + /// approving enough underlying tokens to the Vault contract, etc). + /// + /// NOTE: most implementations will require pre-approval of the Vault with the Vault’s underlying asset token. + function mint(uint256 shares, address receiver) external returns (uint256 assets); + + /// @notice Returns the maximum amount of the underlying asset that can be withdrawn from the owner balance in the + /// Vault, through a withdraw call. + /// @dev + /// - MUST return a limited value if owner is subject to some withdrawal limit or timelock. + /// - MUST NOT revert. + function maxWithdraw(address owner) external view returns (uint256 maxAssets); + + /// @notice Allows an on-chain or off-chain user to simulate the effects of their withdrawal at the current block, + /// given current on-chain conditions. + /// @dev + /// - MUST return as close to and no fewer than the exact amount of Vault shares that would be burned in a withdraw + /// call in the same transaction. I.e. withdraw should return the same or fewer shares as previewWithdraw if + /// called + /// in the same transaction. + /// - MUST NOT account for withdrawal limits like those returned from maxWithdraw and should always act as though + /// the withdrawal would be accepted, regardless if the user has enough shares, etc. + /// - MUST be inclusive of withdrawal fees. Integrators should be aware of the existence of withdrawal fees. + /// - MUST NOT revert. + /// + /// NOTE: any unfavorable discrepancy between convertToShares and previewWithdraw SHOULD be considered slippage in + /// share price or some other type of condition, meaning the depositor will lose assets by depositing. + function previewWithdraw(uint256 assets) external view returns (uint256 shares); + + /// @notice Burns shares from owner and sends exactly assets of underlying tokens to receiver. + /// @dev + /// - MUST emit the Withdraw event. + /// - MAY support an additional flow in which the underlying tokens are owned by the Vault contract before the + /// withdraw execution, and are accounted for during withdraw. + /// - MUST revert if all of assets cannot be withdrawn (due to withdrawal limit being reached, slippage, the owner + /// not having enough shares, etc). + /// + /// Note that some implementations will require pre-requesting to the Vault before a withdrawal may be performed. + /// Those methods should be performed separately. + function withdraw(uint256 assets, address receiver, address owner) external returns (uint256 shares); + + /// @notice Returns the maximum amount of Vault shares that can be redeemed from the owner balance in the Vault, + /// through a redeem call. + /// @dev + /// - MUST return a limited value if owner is subject to some withdrawal limit or timelock. + /// - MUST return balanceOf(owner) if owner is not subject to any withdrawal limit or timelock. + /// - MUST NOT revert. + function maxRedeem(address owner) external view returns (uint256 maxShares); + + /// @notice Allows an on-chain or off-chain user to simulate the effects of their redeemption at the current block, + /// given current on-chain conditions. + /// @dev + /// - MUST return as close to and no more than the exact amount of assets that would be withdrawn in a redeem call + /// in the same transaction. I.e. redeem should return the same or more assets as previewRedeem if called in the + /// same transaction. + /// - MUST NOT account for redemption limits like those returned from maxRedeem and should always act as though the + /// redemption would be accepted, regardless if the user has enough shares, etc. + /// - MUST be inclusive of withdrawal fees. Integrators should be aware of the existence of withdrawal fees. + /// - MUST NOT revert. + /// + /// NOTE: any unfavorable discrepancy between convertToAssets and previewRedeem SHOULD be considered slippage in + /// share price or some other type of condition, meaning the depositor will lose assets by redeeming. + function previewRedeem(uint256 shares) external view returns (uint256 assets); + + /// @notice Burns exactly shares from owner and sends assets of underlying tokens to receiver. + /// @dev + /// - MUST emit the Withdraw event. + /// - MAY support an additional flow in which the underlying tokens are owned by the Vault contract before the + /// redeem execution, and are accounted for during redeem. + /// - MUST revert if all of shares cannot be redeemed (due to withdrawal limit being reached, slippage, the owner + /// not having enough shares, etc). + /// + /// NOTE: some implementations will require pre-requesting to the Vault before a withdrawal may be performed. + /// Those methods should be performed separately. + function redeem(uint256 shares, address receiver, address owner) external returns (uint256 assets); +} diff --git a/lib/openzeppelin-contracts/lib/forge-std/src/interfaces/IERC721.sol b/lib/openzeppelin-contracts/lib/forge-std/src/interfaces/IERC721.sol new file mode 100644 index 0000000..0a16f45 --- /dev/null +++ b/lib/openzeppelin-contracts/lib/forge-std/src/interfaces/IERC721.sol @@ -0,0 +1,164 @@ +// SPDX-License-Identifier: MIT +pragma solidity >=0.6.2; + +import "./IERC165.sol"; + +/// @title ERC-721 Non-Fungible Token Standard +/// @dev See https://eips.ethereum.org/EIPS/eip-721 +/// Note: the ERC-165 identifier for this interface is 0x80ac58cd. +interface IERC721 is IERC165 { + /// @dev This emits when ownership of any NFT changes by any mechanism. + /// This event emits when NFTs are created (`from` == 0) and destroyed + /// (`to` == 0). Exception: during contract creation, any number of NFTs + /// may be created and assigned without emitting Transfer. At the time of + /// any transfer, the approved address for that NFT (if any) is reset to none. + event Transfer(address indexed _from, address indexed _to, uint256 indexed _tokenId); + + /// @dev This emits when the approved address for an NFT is changed or + /// reaffirmed. The zero address indicates there is no approved address. + /// When a Transfer event emits, this also indicates that the approved + /// address for that NFT (if any) is reset to none. + event Approval(address indexed _owner, address indexed _approved, uint256 indexed _tokenId); + + /// @dev This emits when an operator is enabled or disabled for an owner. + /// The operator can manage all NFTs of the owner. + event ApprovalForAll(address indexed _owner, address indexed _operator, bool _approved); + + /// @notice Count all NFTs assigned to an owner + /// @dev NFTs assigned to the zero address are considered invalid, and this + /// function throws for queries about the zero address. + /// @param _owner An address for whom to query the balance + /// @return The number of NFTs owned by `_owner`, possibly zero + function balanceOf(address _owner) external view returns (uint256); + + /// @notice Find the owner of an NFT + /// @dev NFTs assigned to zero address are considered invalid, and queries + /// about them do throw. + /// @param _tokenId The identifier for an NFT + /// @return The address of the owner of the NFT + function ownerOf(uint256 _tokenId) external view returns (address); + + /// @notice Transfers the ownership of an NFT from one address to another address + /// @dev Throws unless `msg.sender` is the current owner, an authorized + /// operator, or the approved address for this NFT. Throws if `_from` is + /// not the current owner. Throws if `_to` is the zero address. Throws if + /// `_tokenId` is not a valid NFT. When transfer is complete, this function + /// checks if `_to` is a smart contract (code size > 0). If so, it calls + /// `onERC721Received` on `_to` and throws if the return value is not + /// `bytes4(keccak256("onERC721Received(address,address,uint256,bytes)"))`. + /// @param _from The current owner of the NFT + /// @param _to The new owner + /// @param _tokenId The NFT to transfer + /// @param data Additional data with no specified format, sent in call to `_to` + function safeTransferFrom(address _from, address _to, uint256 _tokenId, bytes calldata data) external payable; + + /// @notice Transfers the ownership of an NFT from one address to another address + /// @dev This works identically to the other function with an extra data parameter, + /// except this function just sets data to "". + /// @param _from The current owner of the NFT + /// @param _to The new owner + /// @param _tokenId The NFT to transfer + function safeTransferFrom(address _from, address _to, uint256 _tokenId) external payable; + + /// @notice Transfer ownership of an NFT -- THE CALLER IS RESPONSIBLE + /// TO CONFIRM THAT `_to` IS CAPABLE OF RECEIVING NFTS OR ELSE + /// THEY MAY BE PERMANENTLY LOST + /// @dev Throws unless `msg.sender` is the current owner, an authorized + /// operator, or the approved address for this NFT. Throws if `_from` is + /// not the current owner. Throws if `_to` is the zero address. Throws if + /// `_tokenId` is not a valid NFT. + /// @param _from The current owner of the NFT + /// @param _to The new owner + /// @param _tokenId The NFT to transfer + function transferFrom(address _from, address _to, uint256 _tokenId) external payable; + + /// @notice Change or reaffirm the approved address for an NFT + /// @dev The zero address indicates there is no approved address. + /// Throws unless `msg.sender` is the current NFT owner, or an authorized + /// operator of the current owner. + /// @param _approved The new approved NFT controller + /// @param _tokenId The NFT to approve + function approve(address _approved, uint256 _tokenId) external payable; + + /// @notice Enable or disable approval for a third party ("operator") to manage + /// all of `msg.sender`'s assets + /// @dev Emits the ApprovalForAll event. The contract MUST allow + /// multiple operators per owner. + /// @param _operator Address to add to the set of authorized operators + /// @param _approved True if the operator is approved, false to revoke approval + function setApprovalForAll(address _operator, bool _approved) external; + + /// @notice Get the approved address for a single NFT + /// @dev Throws if `_tokenId` is not a valid NFT. + /// @param _tokenId The NFT to find the approved address for + /// @return The approved address for this NFT, or the zero address if there is none + function getApproved(uint256 _tokenId) external view returns (address); + + /// @notice Query if an address is an authorized operator for another address + /// @param _owner The address that owns the NFTs + /// @param _operator The address that acts on behalf of the owner + /// @return True if `_operator` is an approved operator for `_owner`, false otherwise + function isApprovedForAll(address _owner, address _operator) external view returns (bool); +} + +/// @dev Note: the ERC-165 identifier for this interface is 0x150b7a02. +interface IERC721TokenReceiver { + /// @notice Handle the receipt of an NFT + /// @dev The ERC721 smart contract calls this function on the recipient + /// after a `transfer`. This function MAY throw to revert and reject the + /// transfer. Return of other than the magic value MUST result in the + /// transaction being reverted. + /// Note: the contract address is always the message sender. + /// @param _operator The address which called `safeTransferFrom` function + /// @param _from The address which previously owned the token + /// @param _tokenId The NFT identifier which is being transferred + /// @param _data Additional data with no specified format + /// @return `bytes4(keccak256("onERC721Received(address,address,uint256,bytes)"))` + /// unless throwing + function onERC721Received(address _operator, address _from, uint256 _tokenId, bytes calldata _data) + external + returns (bytes4); +} + +/// @title ERC-721 Non-Fungible Token Standard, optional metadata extension +/// @dev See https://eips.ethereum.org/EIPS/eip-721 +/// Note: the ERC-165 identifier for this interface is 0x5b5e139f. +interface IERC721Metadata is IERC721 { + /// @notice A descriptive name for a collection of NFTs in this contract + function name() external view returns (string memory _name); + + /// @notice An abbreviated name for NFTs in this contract + function symbol() external view returns (string memory _symbol); + + /// @notice A distinct Uniform Resource Identifier (URI) for a given asset. + /// @dev Throws if `_tokenId` is not a valid NFT. URIs are defined in RFC + /// 3986. The URI may point to a JSON file that conforms to the "ERC721 + /// Metadata JSON Schema". + function tokenURI(uint256 _tokenId) external view returns (string memory); +} + +/// @title ERC-721 Non-Fungible Token Standard, optional enumeration extension +/// @dev See https://eips.ethereum.org/EIPS/eip-721 +/// Note: the ERC-165 identifier for this interface is 0x780e9d63. +interface IERC721Enumerable is IERC721 { + /// @notice Count NFTs tracked by this contract + /// @return A count of valid NFTs tracked by this contract, where each one of + /// them has an assigned and queryable owner not equal to the zero address + function totalSupply() external view returns (uint256); + + /// @notice Enumerate valid NFTs + /// @dev Throws if `_index` >= `totalSupply()`. + /// @param _index A counter less than `totalSupply()` + /// @return The token identifier for the `_index`th NFT, + /// (sort order not specified) + function tokenByIndex(uint256 _index) external view returns (uint256); + + /// @notice Enumerate NFTs assigned to an owner + /// @dev Throws if `_index` >= `balanceOf(_owner)` or if + /// `_owner` is the zero address, representing invalid NFTs. + /// @param _owner An address where we are interested in NFTs owned by them + /// @param _index A counter less than `balanceOf(_owner)` + /// @return The token identifier for the `_index`th NFT assigned to `_owner`, + /// (sort order not specified) + function tokenOfOwnerByIndex(address _owner, uint256 _index) external view returns (uint256); +} diff --git a/lib/openzeppelin-contracts/lib/forge-std/test/StdAssertions.t.sol b/lib/openzeppelin-contracts/lib/forge-std/test/StdAssertions.t.sol new file mode 100644 index 0000000..4d5827d --- /dev/null +++ b/lib/openzeppelin-contracts/lib/forge-std/test/StdAssertions.t.sol @@ -0,0 +1,587 @@ +// SPDX-License-Identifier: MIT +pragma solidity >=0.7.0 <0.9.0; + +import "../src/Test.sol"; + +contract StdAssertionsTest is Test { + string constant CUSTOM_ERROR = "guh!"; + + bool constant EXPECT_PASS = false; + bool constant EXPECT_FAIL = true; + + TestTest t = new TestTest(); + + /*////////////////////////////////////////////////////////////////////////// + FAIL(STRING) + //////////////////////////////////////////////////////////////////////////*/ + + function testShouldFail() external { + vm.expectEmit(false, false, false, true); + emit log_named_string("Error", CUSTOM_ERROR); + t._fail(CUSTOM_ERROR); + } + + /*////////////////////////////////////////////////////////////////////////// + ASSERT_FALSE + //////////////////////////////////////////////////////////////////////////*/ + + function testAssertFalse_Pass() external { + t._assertFalse(false, EXPECT_PASS); + } + + function testAssertFalse_Fail() external { + vm.expectEmit(false, false, false, true); + emit log("Error: Assertion Failed"); + t._assertFalse(true, EXPECT_FAIL); + } + + function testAssertFalse_Err_Pass() external { + t._assertFalse(false, CUSTOM_ERROR, EXPECT_PASS); + } + + function testAssertFalse_Err_Fail() external { + vm.expectEmit(false, false, false, true); + emit log_named_string("Error", CUSTOM_ERROR); + t._assertFalse(true, CUSTOM_ERROR, EXPECT_FAIL); + } + + /*////////////////////////////////////////////////////////////////////////// + ASSERT_EQ(BOOL) + //////////////////////////////////////////////////////////////////////////*/ + + function testAssertEq_Bool_Pass(bool a) external { + t._assertEq(a, a, EXPECT_PASS); + } + + function testAssertEq_Bool_Fail(bool a, bool b) external { + vm.assume(a != b); + + vm.expectEmit(false, false, false, true); + emit log("Error: a == b not satisfied [bool]"); + t._assertEq(a, b, EXPECT_FAIL); + } + + function testAssertEq_BoolErr_Pass(bool a) external { + t._assertEq(a, a, CUSTOM_ERROR, EXPECT_PASS); + } + + function testAssertEq_BoolErr_Fail(bool a, bool b) external { + vm.assume(a != b); + + vm.expectEmit(false, false, false, true); + emit log_named_string("Error", CUSTOM_ERROR); + t._assertEq(a, b, CUSTOM_ERROR, EXPECT_FAIL); + } + + /*////////////////////////////////////////////////////////////////////////// + ASSERT_EQ(BYTES) + //////////////////////////////////////////////////////////////////////////*/ + + function testAssertEq_Bytes_Pass(bytes calldata a) external { + t._assertEq(a, a, EXPECT_PASS); + } + + function testAssertEq_Bytes_Fail(bytes calldata a, bytes calldata b) external { + vm.assume(keccak256(a) != keccak256(b)); + + vm.expectEmit(false, false, false, true); + emit log("Error: a == b not satisfied [bytes]"); + t._assertEq(a, b, EXPECT_FAIL); + } + + function testAssertEq_BytesErr_Pass(bytes calldata a) external { + t._assertEq(a, a, CUSTOM_ERROR, EXPECT_PASS); + } + + function testAssertEq_BytesErr_Fail(bytes calldata a, bytes calldata b) external { + vm.assume(keccak256(a) != keccak256(b)); + + vm.expectEmit(false, false, false, true); + emit log_named_string("Error", CUSTOM_ERROR); + t._assertEq(a, b, CUSTOM_ERROR, EXPECT_FAIL); + } + + /*////////////////////////////////////////////////////////////////////////// + ASSERT_EQ(ARRAY) + //////////////////////////////////////////////////////////////////////////*/ + + function testAssertEq_UintArr_Pass(uint256 e0, uint256 e1, uint256 e2) public { + uint256[] memory a = new uint256[](3); + a[0] = e0; + a[1] = e1; + a[2] = e2; + uint256[] memory b = new uint256[](3); + b[0] = e0; + b[1] = e1; + b[2] = e2; + + t._assertEq(a, b, EXPECT_PASS); + } + + function testAssertEq_IntArr_Pass(int256 e0, int256 e1, int256 e2) public { + int256[] memory a = new int256[](3); + a[0] = e0; + a[1] = e1; + a[2] = e2; + int256[] memory b = new int256[](3); + b[0] = e0; + b[1] = e1; + b[2] = e2; + + t._assertEq(a, b, EXPECT_PASS); + } + + function testAssertEq_AddressArr_Pass(address e0, address e1, address e2) public { + address[] memory a = new address[](3); + a[0] = e0; + a[1] = e1; + a[2] = e2; + address[] memory b = new address[](3); + b[0] = e0; + b[1] = e1; + b[2] = e2; + + t._assertEq(a, b, EXPECT_PASS); + } + + function testAssertEq_UintArr_FailEl(uint256 e1) public { + vm.assume(e1 != 0); + uint256[] memory a = new uint256[](3); + uint256[] memory b = new uint256[](3); + b[1] = e1; + + vm.expectEmit(false, false, false, true); + emit log("Error: a == b not satisfied [uint[]]"); + t._assertEq(a, b, EXPECT_FAIL); + } + + function testAssertEq_IntArr_FailEl(int256 e1) public { + vm.assume(e1 != 0); + int256[] memory a = new int256[](3); + int256[] memory b = new int256[](3); + b[1] = e1; + + vm.expectEmit(false, false, false, true); + emit log("Error: a == b not satisfied [int[]]"); + t._assertEq(a, b, EXPECT_FAIL); + } + + function testAssertEq_AddressArr_FailEl(address e1) public { + vm.assume(e1 != address(0)); + address[] memory a = new address[](3); + address[] memory b = new address[](3); + b[1] = e1; + + vm.expectEmit(false, false, false, true); + emit log("Error: a == b not satisfied [address[]]"); + t._assertEq(a, b, EXPECT_FAIL); + } + + function testAssertEq_UintArrErr_FailEl(uint256 e1) public { + vm.assume(e1 != 0); + uint256[] memory a = new uint256[](3); + uint256[] memory b = new uint256[](3); + b[1] = e1; + + vm.expectEmit(false, false, false, true); + emit log_named_string("Error", CUSTOM_ERROR); + vm.expectEmit(false, false, false, true); + emit log("Error: a == b not satisfied [uint[]]"); + t._assertEq(a, b, CUSTOM_ERROR, EXPECT_FAIL); + } + + function testAssertEq_IntArrErr_FailEl(int256 e1) public { + vm.assume(e1 != 0); + int256[] memory a = new int256[](3); + int256[] memory b = new int256[](3); + b[1] = e1; + + vm.expectEmit(false, false, false, true); + emit log_named_string("Error", CUSTOM_ERROR); + vm.expectEmit(false, false, false, true); + emit log("Error: a == b not satisfied [int[]]"); + t._assertEq(a, b, CUSTOM_ERROR, EXPECT_FAIL); + } + + function testAssertEq_AddressArrErr_FailEl(address e1) public { + vm.assume(e1 != address(0)); + address[] memory a = new address[](3); + address[] memory b = new address[](3); + b[1] = e1; + + vm.expectEmit(false, false, false, true); + emit log_named_string("Error", CUSTOM_ERROR); + vm.expectEmit(false, false, false, true); + emit log("Error: a == b not satisfied [address[]]"); + t._assertEq(a, b, CUSTOM_ERROR, EXPECT_FAIL); + } + + function testAssertEq_UintArr_FailLen(uint256 lenA, uint256 lenB) public { + vm.assume(lenA != lenB); + vm.assume(lenA <= 10000); + vm.assume(lenB <= 10000); + uint256[] memory a = new uint256[](lenA); + uint256[] memory b = new uint256[](lenB); + + vm.expectEmit(false, false, false, true); + emit log("Error: a == b not satisfied [uint[]]"); + t._assertEq(a, b, EXPECT_FAIL); + } + + function testAssertEq_IntArr_FailLen(uint256 lenA, uint256 lenB) public { + vm.assume(lenA != lenB); + vm.assume(lenA <= 10000); + vm.assume(lenB <= 10000); + int256[] memory a = new int256[](lenA); + int256[] memory b = new int256[](lenB); + + vm.expectEmit(false, false, false, true); + emit log("Error: a == b not satisfied [int[]]"); + t._assertEq(a, b, EXPECT_FAIL); + } + + function testAssertEq_AddressArr_FailLen(uint256 lenA, uint256 lenB) public { + vm.assume(lenA != lenB); + vm.assume(lenA <= 10000); + vm.assume(lenB <= 10000); + address[] memory a = new address[](lenA); + address[] memory b = new address[](lenB); + + vm.expectEmit(false, false, false, true); + emit log("Error: a == b not satisfied [address[]]"); + t._assertEq(a, b, EXPECT_FAIL); + } + + function testAssertEq_UintArrErr_FailLen(uint256 lenA, uint256 lenB) public { + vm.assume(lenA != lenB); + vm.assume(lenA <= 10000); + vm.assume(lenB <= 10000); + uint256[] memory a = new uint256[](lenA); + uint256[] memory b = new uint256[](lenB); + + vm.expectEmit(false, false, false, true); + emit log_named_string("Error", CUSTOM_ERROR); + vm.expectEmit(false, false, false, true); + emit log("Error: a == b not satisfied [uint[]]"); + t._assertEq(a, b, CUSTOM_ERROR, EXPECT_FAIL); + } + + function testAssertEq_IntArrErr_FailLen(uint256 lenA, uint256 lenB) public { + vm.assume(lenA != lenB); + vm.assume(lenA <= 10000); + vm.assume(lenB <= 10000); + int256[] memory a = new int256[](lenA); + int256[] memory b = new int256[](lenB); + + vm.expectEmit(false, false, false, true); + emit log_named_string("Error", CUSTOM_ERROR); + vm.expectEmit(false, false, false, true); + emit log("Error: a == b not satisfied [int[]]"); + t._assertEq(a, b, CUSTOM_ERROR, EXPECT_FAIL); + } + + function testAssertEq_AddressArrErr_FailLen(uint256 lenA, uint256 lenB) public { + vm.assume(lenA != lenB); + vm.assume(lenA <= 10000); + vm.assume(lenB <= 10000); + address[] memory a = new address[](lenA); + address[] memory b = new address[](lenB); + + vm.expectEmit(false, false, false, true); + emit log_named_string("Error", CUSTOM_ERROR); + vm.expectEmit(false, false, false, true); + emit log("Error: a == b not satisfied [address[]]"); + t._assertEq(a, b, CUSTOM_ERROR, EXPECT_FAIL); + } + + /*////////////////////////////////////////////////////////////////////////// + ASSERT_EQ(UINT) + //////////////////////////////////////////////////////////////////////////*/ + + function testAssertEqUint() public { + assertEqUint(uint8(1), uint128(1)); + assertEqUint(uint64(2), uint64(2)); + } + + function testFailAssertEqUint() public { + assertEqUint(uint64(1), uint96(2)); + assertEqUint(uint160(3), uint160(4)); + } + + /*////////////////////////////////////////////////////////////////////////// + APPROX_EQ_ABS(UINT) + //////////////////////////////////////////////////////////////////////////*/ + + function testAssertApproxEqAbs_Uint_Pass(uint256 a, uint256 b, uint256 maxDelta) external { + vm.assume(stdMath.delta(a, b) <= maxDelta); + + t._assertApproxEqAbs(a, b, maxDelta, EXPECT_PASS); + } + + function testAssertApproxEqAbs_Uint_Fail(uint256 a, uint256 b, uint256 maxDelta) external { + vm.assume(stdMath.delta(a, b) > maxDelta); + + vm.expectEmit(false, false, false, true); + emit log("Error: a ~= b not satisfied [uint]"); + t._assertApproxEqAbs(a, b, maxDelta, EXPECT_FAIL); + } + + function testAssertApproxEqAbs_UintErr_Pass(uint256 a, uint256 b, uint256 maxDelta) external { + vm.assume(stdMath.delta(a, b) <= maxDelta); + + t._assertApproxEqAbs(a, b, maxDelta, CUSTOM_ERROR, EXPECT_PASS); + } + + function testAssertApproxEqAbs_UintErr_Fail(uint256 a, uint256 b, uint256 maxDelta) external { + vm.assume(stdMath.delta(a, b) > maxDelta); + + vm.expectEmit(false, false, false, true); + emit log_named_string("Error", CUSTOM_ERROR); + t._assertApproxEqAbs(a, b, maxDelta, CUSTOM_ERROR, EXPECT_FAIL); + } + + /*////////////////////////////////////////////////////////////////////////// + APPROX_EQ_ABS(INT) + //////////////////////////////////////////////////////////////////////////*/ + + function testAssertApproxEqAbs_Int_Pass(int256 a, int256 b, uint256 maxDelta) external { + vm.assume(stdMath.delta(a, b) <= maxDelta); + + t._assertApproxEqAbs(a, b, maxDelta, EXPECT_PASS); + } + + function testAssertApproxEqAbs_Int_Fail(int256 a, int256 b, uint256 maxDelta) external { + vm.assume(stdMath.delta(a, b) > maxDelta); + + vm.expectEmit(false, false, false, true); + emit log("Error: a ~= b not satisfied [int]"); + t._assertApproxEqAbs(a, b, maxDelta, EXPECT_FAIL); + } + + function testAssertApproxEqAbs_IntErr_Pass(int256 a, int256 b, uint256 maxDelta) external { + vm.assume(stdMath.delta(a, b) <= maxDelta); + + t._assertApproxEqAbs(a, b, maxDelta, CUSTOM_ERROR, EXPECT_PASS); + } + + function testAssertApproxEqAbs_IntErr_Fail(int256 a, int256 b, uint256 maxDelta) external { + vm.assume(stdMath.delta(a, b) > maxDelta); + + vm.expectEmit(false, false, false, true); + emit log_named_string("Error", CUSTOM_ERROR); + t._assertApproxEqAbs(a, b, maxDelta, CUSTOM_ERROR, EXPECT_FAIL); + } + + /*////////////////////////////////////////////////////////////////////////// + APPROX_EQ_REL(UINT) + //////////////////////////////////////////////////////////////////////////*/ + + function testAssertApproxEqRel_Uint_Pass(uint256 a, uint256 b, uint256 maxPercentDelta) external { + vm.assume(a < type(uint128).max && b < type(uint128).max && b != 0); + vm.assume(stdMath.percentDelta(a, b) <= maxPercentDelta); + + t._assertApproxEqRel(a, b, maxPercentDelta, EXPECT_PASS); + } + + function testAssertApproxEqRel_Uint_Fail(uint256 a, uint256 b, uint256 maxPercentDelta) external { + vm.assume(a < type(uint128).max && b < type(uint128).max && b != 0); + vm.assume(stdMath.percentDelta(a, b) > maxPercentDelta); + + vm.expectEmit(false, false, false, true); + emit log("Error: a ~= b not satisfied [uint]"); + t._assertApproxEqRel(a, b, maxPercentDelta, EXPECT_FAIL); + } + + function testAssertApproxEqRel_UintErr_Pass(uint256 a, uint256 b, uint256 maxPercentDelta) external { + vm.assume(a < type(uint128).max && b < type(uint128).max && b != 0); + vm.assume(stdMath.percentDelta(a, b) <= maxPercentDelta); + + t._assertApproxEqRel(a, b, maxPercentDelta, CUSTOM_ERROR, EXPECT_PASS); + } + + function testAssertApproxEqRel_UintErr_Fail(uint256 a, uint256 b, uint256 maxPercentDelta) external { + vm.assume(a < type(uint128).max && b < type(uint128).max && b != 0); + vm.assume(stdMath.percentDelta(a, b) > maxPercentDelta); + + vm.expectEmit(false, false, false, true); + emit log_named_string("Error", CUSTOM_ERROR); + t._assertApproxEqRel(a, b, maxPercentDelta, CUSTOM_ERROR, EXPECT_FAIL); + } + + /*////////////////////////////////////////////////////////////////////////// + APPROX_EQ_REL(INT) + //////////////////////////////////////////////////////////////////////////*/ + + function testAssertApproxEqRel_Int_Pass(int128 a, int128 b, uint128 maxPercentDelta) external { + vm.assume(b != 0); + vm.assume(stdMath.percentDelta(a, b) <= maxPercentDelta); + + t._assertApproxEqRel(a, b, maxPercentDelta, EXPECT_PASS); + } + + function testAssertApproxEqRel_Int_Fail(int128 a, int128 b, uint128 maxPercentDelta) external { + vm.assume(b != 0); + vm.assume(stdMath.percentDelta(a, b) > maxPercentDelta); + + vm.expectEmit(false, false, false, true); + emit log("Error: a ~= b not satisfied [int]"); + t._assertApproxEqRel(a, b, maxPercentDelta, EXPECT_FAIL); + } + + function testAssertApproxEqRel_IntErr_Pass(int128 a, int128 b, uint128 maxPercentDelta) external { + vm.assume(b != 0); + vm.assume(stdMath.percentDelta(a, b) <= maxPercentDelta); + + t._assertApproxEqRel(a, b, maxPercentDelta, CUSTOM_ERROR, EXPECT_PASS); + } + + function testAssertApproxEqRel_IntErr_Fail(int128 a, int128 b, uint128 maxPercentDelta) external { + vm.assume(b != 0); + vm.assume(stdMath.percentDelta(a, b) > maxPercentDelta); + + vm.expectEmit(false, false, false, true); + emit log_named_string("Error", CUSTOM_ERROR); + t._assertApproxEqRel(a, b, maxPercentDelta, CUSTOM_ERROR, EXPECT_FAIL); + } +} + +contract TestTest is Test { + modifier expectFailure(bool expectFail) { + bool preState = vm.load(HEVM_ADDRESS, bytes32("failed")) != bytes32(0x00); + _; + bool postState = vm.load(HEVM_ADDRESS, bytes32("failed")) != bytes32(0x00); + + if (preState == true) { + return; + } + + if (expectFail) { + require(postState == true, "expected failure not triggered"); + + // unwind the expected failure + vm.store(HEVM_ADDRESS, bytes32("failed"), bytes32(uint256(0x00))); + } else { + require(postState == false, "unexpected failure was triggered"); + } + } + + function _fail(string memory err) external expectFailure(true) { + fail(err); + } + + function _assertFalse(bool data, bool expectFail) external expectFailure(expectFail) { + assertFalse(data); + } + + function _assertFalse(bool data, string memory err, bool expectFail) external expectFailure(expectFail) { + assertFalse(data, err); + } + + function _assertEq(bool a, bool b, bool expectFail) external expectFailure(expectFail) { + assertEq(a, b); + } + + function _assertEq(bool a, bool b, string memory err, bool expectFail) external expectFailure(expectFail) { + assertEq(a, b, err); + } + + function _assertEq(bytes memory a, bytes memory b, bool expectFail) external expectFailure(expectFail) { + assertEq(a, b); + } + + function _assertEq(bytes memory a, bytes memory b, string memory err, bool expectFail) + external + expectFailure(expectFail) + { + assertEq(a, b, err); + } + + function _assertEq(uint256[] memory a, uint256[] memory b, bool expectFail) external expectFailure(expectFail) { + assertEq(a, b); + } + + function _assertEq(int256[] memory a, int256[] memory b, bool expectFail) external expectFailure(expectFail) { + assertEq(a, b); + } + + function _assertEq(address[] memory a, address[] memory b, bool expectFail) external expectFailure(expectFail) { + assertEq(a, b); + } + + function _assertEq(uint256[] memory a, uint256[] memory b, string memory err, bool expectFail) + external + expectFailure(expectFail) + { + assertEq(a, b, err); + } + + function _assertEq(int256[] memory a, int256[] memory b, string memory err, bool expectFail) + external + expectFailure(expectFail) + { + assertEq(a, b, err); + } + + function _assertEq(address[] memory a, address[] memory b, string memory err, bool expectFail) + external + expectFailure(expectFail) + { + assertEq(a, b, err); + } + + function _assertApproxEqAbs(uint256 a, uint256 b, uint256 maxDelta, bool expectFail) + external + expectFailure(expectFail) + { + assertApproxEqAbs(a, b, maxDelta); + } + + function _assertApproxEqAbs(uint256 a, uint256 b, uint256 maxDelta, string memory err, bool expectFail) + external + expectFailure(expectFail) + { + assertApproxEqAbs(a, b, maxDelta, err); + } + + function _assertApproxEqAbs(int256 a, int256 b, uint256 maxDelta, bool expectFail) + external + expectFailure(expectFail) + { + assertApproxEqAbs(a, b, maxDelta); + } + + function _assertApproxEqAbs(int256 a, int256 b, uint256 maxDelta, string memory err, bool expectFail) + external + expectFailure(expectFail) + { + assertApproxEqAbs(a, b, maxDelta, err); + } + + function _assertApproxEqRel(uint256 a, uint256 b, uint256 maxPercentDelta, bool expectFail) + external + expectFailure(expectFail) + { + assertApproxEqRel(a, b, maxPercentDelta); + } + + function _assertApproxEqRel(uint256 a, uint256 b, uint256 maxPercentDelta, string memory err, bool expectFail) + external + expectFailure(expectFail) + { + assertApproxEqRel(a, b, maxPercentDelta, err); + } + + function _assertApproxEqRel(int256 a, int256 b, uint256 maxPercentDelta, bool expectFail) + external + expectFailure(expectFail) + { + assertApproxEqRel(a, b, maxPercentDelta); + } + + function _assertApproxEqRel(int256 a, int256 b, uint256 maxPercentDelta, string memory err, bool expectFail) + external + expectFailure(expectFail) + { + assertApproxEqRel(a, b, maxPercentDelta, err); + } +} diff --git a/lib/openzeppelin-contracts/lib/forge-std/test/StdChains.t.sol b/lib/openzeppelin-contracts/lib/forge-std/test/StdChains.t.sol new file mode 100644 index 0000000..3657510 --- /dev/null +++ b/lib/openzeppelin-contracts/lib/forge-std/test/StdChains.t.sol @@ -0,0 +1,123 @@ +// SPDX-License-Identifier: MIT +pragma solidity >=0.7.0 <0.9.0; + +import "../src/Test.sol"; + +contract StdChainsTest is Test { + function testChainRpcInitialization() public { + // RPCs specified in `foundry.toml` should be updated. + assertEq(getChain(1).rpcUrl, "https://mainnet.infura.io/v3/7a8769b798b642f6933f2ed52042bd70"); + assertEq(getChain("optimism_goerli").rpcUrl, "https://goerli.optimism.io/"); + assertEq(getChain("arbitrum_one_goerli").rpcUrl, "https://goerli-rollup.arbitrum.io/rpc/"); + + // Other RPCs should remain unchanged. + assertEq(getChain(31337).rpcUrl, "http://127.0.0.1:8545"); + assertEq(getChain("sepolia").rpcUrl, "https://sepolia.infura.io/v3/6770454bc6ea42c58aac12978531b93f"); + } + + function testRpc(string memory rpcAlias) internal { + string memory rpcUrl = getChain(rpcAlias).rpcUrl; + vm.createSelectFork(rpcUrl); + } + + // Ensure we can connect to the default RPC URL for each chain. + function testRpcs() public { + testRpc("mainnet"); + testRpc("goerli"); + testRpc("sepolia"); + testRpc("optimism"); + testRpc("optimism_goerli"); + testRpc("arbitrum_one"); + testRpc("arbitrum_one_goerli"); + testRpc("arbitrum_nova"); + testRpc("polygon"); + testRpc("polygon_mumbai"); + testRpc("avalanche"); + testRpc("avalanche_fuji"); + testRpc("bnb_smart_chain"); + testRpc("bnb_smart_chain_testnet"); + testRpc("gnosis_chain"); + } + + function testChainNoDefault() public { + vm.expectRevert("StdChains getChain(string): Chain with alias \"does_not_exist\" not found."); + getChain("does_not_exist"); + } + + function testSetChainFirstFails() public { + vm.expectRevert("StdChains setChain(string,Chain): Chain ID 31337 already used by \"anvil\"."); + setChain("anvil2", Chain("Anvil", 31337, "URL")); + } + + function testChainBubbleUp() public { + setChain("needs_undefined_env_var", Chain("", 123456789, "")); + vm.expectRevert( + "Failed to resolve env var `UNDEFINED_RPC_URL_PLACEHOLDER` in `${UNDEFINED_RPC_URL_PLACEHOLDER}`: environment variable not found" + ); + getChain("needs_undefined_env_var"); + } + + function testCannotSetChain_ChainIdExists() public { + setChain("custom_chain", Chain("Custom Chain", 123456789, "https://custom.chain/")); + + vm.expectRevert('StdChains setChain(string,Chain): Chain ID 123456789 already used by "custom_chain".'); + + setChain("another_custom_chain", Chain("", 123456789, "")); + } + + function testSetChain() public { + setChain("custom_chain", Chain("Custom Chain", 123456789, "https://custom.chain/")); + Chain memory customChain = getChain("custom_chain"); + assertEq(customChain.name, "Custom Chain"); + assertEq(customChain.chainId, 123456789); + assertEq(customChain.rpcUrl, "https://custom.chain/"); + Chain memory chainById = getChain(123456789); + assertEq(chainById.name, customChain.name); + assertEq(chainById.chainId, customChain.chainId); + assertEq(chainById.rpcUrl, customChain.rpcUrl); + } + + function testSetNoEmptyAlias() public { + vm.expectRevert("StdChains setChain(string,Chain): Chain alias cannot be the empty string."); + setChain("", Chain("", 123456789, "")); + } + + function testSetNoChainId0() public { + vm.expectRevert("StdChains setChain(string,Chain): Chain ID cannot be 0."); + setChain("alias", Chain("", 0, "")); + } + + function testGetNoChainId0() public { + vm.expectRevert("StdChains getChain(uint256): Chain ID cannot be 0."); + getChain(0); + } + + function testGetNoEmptyAlias() public { + vm.expectRevert("StdChains getChain(string): Chain alias cannot be the empty string."); + getChain(""); + } + + function testChainIdNotFound() public { + vm.expectRevert("StdChains getChain(string): Chain with alias \"no_such_alias\" not found."); + getChain("no_such_alias"); + } + + function testChainAliasNotFound() public { + vm.expectRevert("StdChains getChain(uint256): Chain with ID 321 not found."); + getChain(321); + } + + function testSetChain_ExistingOne() public { + setChain("custom_chain", Chain("Custom Chain", 123456789, "https://custom.chain/")); + assertEq(getChain(123456789).chainId, 123456789); + + setChain("custom_chain", Chain("Modified Chain", 999999999, "https://modified.chain/")); + vm.expectRevert("StdChains getChain(uint256): Chain with ID 123456789 not found."); + getChain(123456789); + + Chain memory modifiedChain = getChain(999999999); + assertEq(modifiedChain.name, "Modified Chain"); + assertEq(modifiedChain.chainId, 999999999); + assertEq(modifiedChain.rpcUrl, "https://modified.chain/"); + } +} diff --git a/lib/openzeppelin-contracts/lib/forge-std/test/StdCheats.t.sol b/lib/openzeppelin-contracts/lib/forge-std/test/StdCheats.t.sol new file mode 100644 index 0000000..2eab3c3 --- /dev/null +++ b/lib/openzeppelin-contracts/lib/forge-std/test/StdCheats.t.sol @@ -0,0 +1,305 @@ +// SPDX-License-Identifier: MIT +pragma solidity >=0.7.0 <0.9.0; + +import "../src/StdCheats.sol"; +import "../src/Test.sol"; +import "../src/StdJson.sol"; + +contract StdCheatsTest is Test { + Bar test; + + using stdJson for string; + + function setUp() public { + test = new Bar(); + } + + function testSkip() public { + vm.warp(100); + skip(25); + assertEq(block.timestamp, 125); + } + + function testRewind() public { + vm.warp(100); + rewind(25); + assertEq(block.timestamp, 75); + } + + function testHoax() public { + hoax(address(1337)); + test.bar{value: 100}(address(1337)); + } + + function testHoaxOrigin() public { + hoax(address(1337), address(1337)); + test.origin{value: 100}(address(1337)); + } + + function testHoaxDifferentAddresses() public { + hoax(address(1337), address(7331)); + test.origin{value: 100}(address(1337), address(7331)); + } + + function testStartHoax() public { + startHoax(address(1337)); + test.bar{value: 100}(address(1337)); + test.bar{value: 100}(address(1337)); + vm.stopPrank(); + test.bar(address(this)); + } + + function testStartHoaxOrigin() public { + startHoax(address(1337), address(1337)); + test.origin{value: 100}(address(1337)); + test.origin{value: 100}(address(1337)); + vm.stopPrank(); + test.bar(address(this)); + } + + function testChangePrank() public { + vm.startPrank(address(1337)); + test.bar(address(1337)); + changePrank(address(0xdead)); + test.bar(address(0xdead)); + changePrank(address(1337)); + test.bar(address(1337)); + vm.stopPrank(); + } + + function testMakeAddrEquivalence() public { + (address addr,) = makeAddrAndKey("1337"); + assertEq(makeAddr("1337"), addr); + } + + function testMakeAddrSigning() public { + (address addr, uint256 key) = makeAddrAndKey("1337"); + bytes32 hash = keccak256("some_message"); + + (uint8 v, bytes32 r, bytes32 s) = vm.sign(key, hash); + assertEq(ecrecover(hash, v, r, s), addr); + } + + function testDeal() public { + deal(address(this), 1 ether); + assertEq(address(this).balance, 1 ether); + } + + function testDealToken() public { + Bar barToken = new Bar(); + address bar = address(barToken); + deal(bar, address(this), 10000e18); + assertEq(barToken.balanceOf(address(this)), 10000e18); + } + + function testDealTokenAdjustTS() public { + Bar barToken = new Bar(); + address bar = address(barToken); + deal(bar, address(this), 10000e18, true); + assertEq(barToken.balanceOf(address(this)), 10000e18); + assertEq(barToken.totalSupply(), 20000e18); + deal(bar, address(this), 0, true); + assertEq(barToken.balanceOf(address(this)), 0); + assertEq(barToken.totalSupply(), 10000e18); + } + + function testDeployCode() public { + address deployed = deployCode("StdCheats.t.sol:Bar", bytes("")); + assertEq(string(getCode(deployed)), string(getCode(address(test)))); + } + + function testDeployCodeNoArgs() public { + address deployed = deployCode("StdCheats.t.sol:Bar"); + assertEq(string(getCode(deployed)), string(getCode(address(test)))); + } + + function testDeployCodeVal() public { + address deployed = deployCode("StdCheats.t.sol:Bar", bytes(""), 1 ether); + assertEq(string(getCode(deployed)), string(getCode(address(test)))); + assertEq(deployed.balance, 1 ether); + } + + function testDeployCodeValNoArgs() public { + address deployed = deployCode("StdCheats.t.sol:Bar", 1 ether); + assertEq(string(getCode(deployed)), string(getCode(address(test)))); + assertEq(deployed.balance, 1 ether); + } + + // We need this so we can call "this.deployCode" rather than "deployCode" directly + function deployCodeHelper(string memory what) external { + deployCode(what); + } + + function testDeployCodeFail() public { + vm.expectRevert(bytes("StdCheats deployCode(string): Deployment failed.")); + this.deployCodeHelper("StdCheats.t.sol:RevertingContract"); + } + + function getCode(address who) internal view returns (bytes memory o_code) { + /// @solidity memory-safe-assembly + assembly { + // retrieve the size of the code, this needs assembly + let size := extcodesize(who) + // allocate output byte array - this could also be done without assembly + // by using o_code = new bytes(size) + o_code := mload(0x40) + // new "memory end" including padding + mstore(0x40, add(o_code, and(add(add(size, 0x20), 0x1f), not(0x1f)))) + // store length in memory + mstore(o_code, size) + // actually retrieve the code, this needs assembly + extcodecopy(who, add(o_code, 0x20), 0, size) + } + } + + function testDeriveRememberKey() public { + string memory mnemonic = "test test test test test test test test test test test junk"; + + (address deployer, uint256 privateKey) = deriveRememberKey(mnemonic, 0); + assertEq(deployer, 0xf39Fd6e51aad88F6F4ce6aB8827279cffFb92266); + assertEq(privateKey, 0xac0974bec39a17e36ba4a6b4d238ff944bacb478cbed5efcae784d7bf4f2ff80); + } + + function testBytesToUint() public { + assertEq(3, bytesToUint_test(hex"03")); + assertEq(2, bytesToUint_test(hex"02")); + assertEq(255, bytesToUint_test(hex"ff")); + assertEq(29625, bytesToUint_test(hex"73b9")); + } + + function testParseJsonTxDetail() public { + string memory root = vm.projectRoot(); + string memory path = string.concat(root, "/test/fixtures/broadcast.log.json"); + string memory json = vm.readFile(path); + bytes memory transactionDetails = json.parseRaw(".transactions[0].tx"); + RawTx1559Detail memory rawTxDetail = abi.decode(transactionDetails, (RawTx1559Detail)); + Tx1559Detail memory txDetail = rawToConvertedEIP1559Detail(rawTxDetail); + assertEq(txDetail.from, 0xf39Fd6e51aad88F6F4ce6aB8827279cffFb92266); + assertEq(txDetail.to, 0xe7f1725E7734CE288F8367e1Bb143E90bb3F0512); + assertEq( + txDetail.data, + hex"23e99187000000000000000000000000000000000000000000000000000000000000000100000000000000000000000000000000000000000000000000000000000013370000000000000000000000000000000000000000000000000000000000000060000000000000000000000000000000000000000000000000000000000000000200000000000000000000000000000000000000000000000000000000000000030000000000000000000000000000000000000000000000000000000000000004" + ); + assertEq(txDetail.nonce, 3); + assertEq(txDetail.txType, 2); + assertEq(txDetail.gas, 29625); + assertEq(txDetail.value, 0); + } + + function testReadEIP1559Transaction() public view { + string memory root = vm.projectRoot(); + string memory path = string.concat(root, "/test/fixtures/broadcast.log.json"); + uint256 index = 0; + Tx1559 memory transaction = readTx1559(path, index); + transaction; + } + + function testReadEIP1559Transactions() public view { + string memory root = vm.projectRoot(); + string memory path = string.concat(root, "/test/fixtures/broadcast.log.json"); + Tx1559[] memory transactions = readTx1559s(path); + transactions; + } + + function testReadReceipt() public { + string memory root = vm.projectRoot(); + string memory path = string.concat(root, "/test/fixtures/broadcast.log.json"); + uint256 index = 5; + Receipt memory receipt = readReceipt(path, index); + assertEq( + receipt.logsBloom, + hex"00000000000800000000000000000010000000000000000000000000000180000000000000000000000000000000000000000000000008000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000100" + ); + } + + function testReadReceipts() public view { + string memory root = vm.projectRoot(); + string memory path = string.concat(root, "/test/fixtures/broadcast.log.json"); + Receipt[] memory receipts = readReceipts(path); + receipts; + } + + function testGasMeteringModifier() public { + uint256 gas_start_normal = gasleft(); + addInLoop(); + uint256 gas_used_normal = gas_start_normal - gasleft(); + + uint256 gas_start_single = gasleft(); + addInLoopNoGas(); + uint256 gas_used_single = gas_start_single - gasleft(); + + uint256 gas_start_double = gasleft(); + addInLoopNoGasNoGas(); + uint256 gas_used_double = gas_start_double - gasleft(); + + emit log_named_uint("Normal gas", gas_used_normal); + emit log_named_uint("Single modifier gas", gas_used_single); + emit log_named_uint("Double modifier gas", gas_used_double); + assertTrue(gas_used_double + gas_used_single < gas_used_normal); + } + + function addInLoop() internal pure returns (uint256) { + uint256 b; + for (uint256 i; i < 10000; i++) { + b += i; + } + return b; + } + + function addInLoopNoGas() internal noGasMetering returns (uint256) { + return addInLoop(); + } + + function addInLoopNoGasNoGas() internal noGasMetering returns (uint256) { + return addInLoopNoGas(); + } + + function bytesToUint_test(bytes memory b) private pure returns (uint256) { + uint256 number; + for (uint256 i = 0; i < b.length; i++) { + number = number + uint256(uint8(b[i])) * (2 ** (8 * (b.length - (i + 1)))); + } + return number; + } + + function testAssumeNoPrecompiles(address addr) external { + assumeNoPrecompiles(addr, getChain("optimism_goerli").chainId); + assertTrue( + addr < address(1) || (addr > address(9) && addr < address(0x4200000000000000000000000000000000000000)) + || addr > address(0x4200000000000000000000000000000000000800) + ); + } +} + +contract Bar { + constructor() payable { + /// `DEAL` STDCHEAT + totalSupply = 10000e18; + balanceOf[address(this)] = totalSupply; + } + + /// `HOAX` STDCHEATS + function bar(address expectedSender) public payable { + require(msg.sender == expectedSender, "!prank"); + } + + function origin(address expectedSender) public payable { + require(msg.sender == expectedSender, "!prank"); + require(tx.origin == expectedSender, "!prank"); + } + + function origin(address expectedSender, address expectedOrigin) public payable { + require(msg.sender == expectedSender, "!prank"); + require(tx.origin == expectedOrigin, "!prank"); + } + + /// `DEAL` STDCHEAT + mapping(address => uint256) public balanceOf; + uint256 public totalSupply; +} + +contract RevertingContract { + constructor() { + revert(); + } +} diff --git a/lib/openzeppelin-contracts/lib/forge-std/test/StdError.t.sol b/lib/openzeppelin-contracts/lib/forge-std/test/StdError.t.sol new file mode 100644 index 0000000..ccd3efa --- /dev/null +++ b/lib/openzeppelin-contracts/lib/forge-std/test/StdError.t.sol @@ -0,0 +1,118 @@ +// SPDX-License-Identifier: MIT +pragma solidity >=0.8.0 <0.9.0; + +import "../src/StdError.sol"; +import "../src/Test.sol"; + +contract StdErrorsTest is Test { + ErrorsTest test; + + function setUp() public { + test = new ErrorsTest(); + } + + function testExpectAssertion() public { + vm.expectRevert(stdError.assertionError); + test.assertionError(); + } + + function testExpectArithmetic() public { + vm.expectRevert(stdError.arithmeticError); + test.arithmeticError(10); + } + + function testExpectDiv() public { + vm.expectRevert(stdError.divisionError); + test.divError(0); + } + + function testExpectMod() public { + vm.expectRevert(stdError.divisionError); + test.modError(0); + } + + function testExpectEnum() public { + vm.expectRevert(stdError.enumConversionError); + test.enumConversion(1); + } + + function testExpectEncodeStg() public { + vm.expectRevert(stdError.encodeStorageError); + test.encodeStgError(); + } + + function testExpectPop() public { + vm.expectRevert(stdError.popError); + test.pop(); + } + + function testExpectOOB() public { + vm.expectRevert(stdError.indexOOBError); + test.indexOOBError(1); + } + + function testExpectMem() public { + vm.expectRevert(stdError.memOverflowError); + test.mem(); + } + + function testExpectIntern() public { + vm.expectRevert(stdError.zeroVarError); + test.intern(); + } +} + +contract ErrorsTest { + enum T {T1} + + uint256[] public someArr; + bytes someBytes; + + function assertionError() public pure { + assert(false); + } + + function arithmeticError(uint256 a) public pure { + a -= 100; + } + + function divError(uint256 a) public pure { + 100 / a; + } + + function modError(uint256 a) public pure { + 100 % a; + } + + function enumConversion(uint256 a) public pure { + T(a); + } + + function encodeStgError() public { + /// @solidity memory-safe-assembly + assembly { + sstore(someBytes.slot, 1) + } + keccak256(someBytes); + } + + function pop() public { + someArr.pop(); + } + + function indexOOBError(uint256 a) public pure { + uint256[] memory t = new uint256[](0); + t[a]; + } + + function mem() public pure { + uint256 l = 2 ** 256 / 32; + new uint256[](l); + } + + function intern() public returns (uint256) { + function(uint256) internal returns (uint256) x; + x(2); + return 7; + } +} diff --git a/lib/openzeppelin-contracts/lib/forge-std/test/StdMath.t.sol b/lib/openzeppelin-contracts/lib/forge-std/test/StdMath.t.sol new file mode 100644 index 0000000..95037ea --- /dev/null +++ b/lib/openzeppelin-contracts/lib/forge-std/test/StdMath.t.sol @@ -0,0 +1,197 @@ +// SPDX-License-Identifier: MIT +pragma solidity >=0.8.0 <0.9.0; + +import "../src/StdMath.sol"; +import "../src/Test.sol"; + +contract StdMathTest is Test { + function testGetAbs() external { + assertEq(stdMath.abs(-50), 50); + assertEq(stdMath.abs(50), 50); + assertEq(stdMath.abs(-1337), 1337); + assertEq(stdMath.abs(0), 0); + + assertEq(stdMath.abs(type(int256).min), (type(uint256).max >> 1) + 1); + assertEq(stdMath.abs(type(int256).max), (type(uint256).max >> 1)); + } + + function testGetAbs_Fuzz(int256 a) external { + uint256 manualAbs = getAbs(a); + + uint256 abs = stdMath.abs(a); + + assertEq(abs, manualAbs); + } + + function testGetDelta_Uint() external { + assertEq(stdMath.delta(uint256(0), uint256(0)), 0); + assertEq(stdMath.delta(uint256(0), uint256(1337)), 1337); + assertEq(stdMath.delta(uint256(0), type(uint64).max), type(uint64).max); + assertEq(stdMath.delta(uint256(0), type(uint128).max), type(uint128).max); + assertEq(stdMath.delta(uint256(0), type(uint256).max), type(uint256).max); + + assertEq(stdMath.delta(0, uint256(0)), 0); + assertEq(stdMath.delta(1337, uint256(0)), 1337); + assertEq(stdMath.delta(type(uint64).max, uint256(0)), type(uint64).max); + assertEq(stdMath.delta(type(uint128).max, uint256(0)), type(uint128).max); + assertEq(stdMath.delta(type(uint256).max, uint256(0)), type(uint256).max); + + assertEq(stdMath.delta(1337, uint256(1337)), 0); + assertEq(stdMath.delta(type(uint256).max, type(uint256).max), 0); + assertEq(stdMath.delta(5000, uint256(1250)), 3750); + } + + function testGetDelta_Uint_Fuzz(uint256 a, uint256 b) external { + uint256 manualDelta; + if (a > b) { + manualDelta = a - b; + } else { + manualDelta = b - a; + } + + uint256 delta = stdMath.delta(a, b); + + assertEq(delta, manualDelta); + } + + function testGetDelta_Int() external { + assertEq(stdMath.delta(int256(0), int256(0)), 0); + assertEq(stdMath.delta(int256(0), int256(1337)), 1337); + assertEq(stdMath.delta(int256(0), type(int64).max), type(uint64).max >> 1); + assertEq(stdMath.delta(int256(0), type(int128).max), type(uint128).max >> 1); + assertEq(stdMath.delta(int256(0), type(int256).max), type(uint256).max >> 1); + + assertEq(stdMath.delta(0, int256(0)), 0); + assertEq(stdMath.delta(1337, int256(0)), 1337); + assertEq(stdMath.delta(type(int64).max, int256(0)), type(uint64).max >> 1); + assertEq(stdMath.delta(type(int128).max, int256(0)), type(uint128).max >> 1); + assertEq(stdMath.delta(type(int256).max, int256(0)), type(uint256).max >> 1); + + assertEq(stdMath.delta(-0, int256(0)), 0); + assertEq(stdMath.delta(-1337, int256(0)), 1337); + assertEq(stdMath.delta(type(int64).min, int256(0)), (type(uint64).max >> 1) + 1); + assertEq(stdMath.delta(type(int128).min, int256(0)), (type(uint128).max >> 1) + 1); + assertEq(stdMath.delta(type(int256).min, int256(0)), (type(uint256).max >> 1) + 1); + + assertEq(stdMath.delta(int256(0), -0), 0); + assertEq(stdMath.delta(int256(0), -1337), 1337); + assertEq(stdMath.delta(int256(0), type(int64).min), (type(uint64).max >> 1) + 1); + assertEq(stdMath.delta(int256(0), type(int128).min), (type(uint128).max >> 1) + 1); + assertEq(stdMath.delta(int256(0), type(int256).min), (type(uint256).max >> 1) + 1); + + assertEq(stdMath.delta(1337, int256(1337)), 0); + assertEq(stdMath.delta(type(int256).max, type(int256).max), 0); + assertEq(stdMath.delta(type(int256).min, type(int256).min), 0); + assertEq(stdMath.delta(type(int256).min, type(int256).max), type(uint256).max); + assertEq(stdMath.delta(5000, int256(1250)), 3750); + } + + function testGetDelta_Int_Fuzz(int256 a, int256 b) external { + uint256 absA = getAbs(a); + uint256 absB = getAbs(b); + uint256 absDelta = absA > absB ? absA - absB : absB - absA; + + uint256 manualDelta; + if ((a >= 0 && b >= 0) || (a < 0 && b < 0)) { + manualDelta = absDelta; + } + // (a < 0 && b >= 0) || (a >= 0 && b < 0) + else { + manualDelta = absA + absB; + } + + uint256 delta = stdMath.delta(a, b); + + assertEq(delta, manualDelta); + } + + function testGetPercentDelta_Uint() external { + assertEq(stdMath.percentDelta(uint256(0), uint256(1337)), 1e18); + assertEq(stdMath.percentDelta(uint256(0), type(uint64).max), 1e18); + assertEq(stdMath.percentDelta(uint256(0), type(uint128).max), 1e18); + assertEq(stdMath.percentDelta(uint256(0), type(uint192).max), 1e18); + + assertEq(stdMath.percentDelta(1337, uint256(1337)), 0); + assertEq(stdMath.percentDelta(type(uint192).max, type(uint192).max), 0); + assertEq(stdMath.percentDelta(0, uint256(2500)), 1e18); + assertEq(stdMath.percentDelta(2500, uint256(2500)), 0); + assertEq(stdMath.percentDelta(5000, uint256(2500)), 1e18); + assertEq(stdMath.percentDelta(7500, uint256(2500)), 2e18); + + vm.expectRevert(stdError.divisionError); + stdMath.percentDelta(uint256(1), 0); + } + + function testGetPercentDelta_Uint_Fuzz(uint192 a, uint192 b) external { + vm.assume(b != 0); + uint256 manualDelta; + if (a > b) { + manualDelta = a - b; + } else { + manualDelta = b - a; + } + + uint256 manualPercentDelta = manualDelta * 1e18 / b; + uint256 percentDelta = stdMath.percentDelta(a, b); + + assertEq(percentDelta, manualPercentDelta); + } + + function testGetPercentDelta_Int() external { + assertEq(stdMath.percentDelta(int256(0), int256(1337)), 1e18); + assertEq(stdMath.percentDelta(int256(0), -1337), 1e18); + assertEq(stdMath.percentDelta(int256(0), type(int64).min), 1e18); + assertEq(stdMath.percentDelta(int256(0), type(int128).min), 1e18); + assertEq(stdMath.percentDelta(int256(0), type(int192).min), 1e18); + assertEq(stdMath.percentDelta(int256(0), type(int64).max), 1e18); + assertEq(stdMath.percentDelta(int256(0), type(int128).max), 1e18); + assertEq(stdMath.percentDelta(int256(0), type(int192).max), 1e18); + + assertEq(stdMath.percentDelta(1337, int256(1337)), 0); + assertEq(stdMath.percentDelta(type(int192).max, type(int192).max), 0); + assertEq(stdMath.percentDelta(type(int192).min, type(int192).min), 0); + + assertEq(stdMath.percentDelta(type(int192).min, type(int192).max), 2e18); // rounds the 1 wei diff down + assertEq(stdMath.percentDelta(type(int192).max, type(int192).min), 2e18 - 1); // rounds the 1 wei diff down + assertEq(stdMath.percentDelta(0, int256(2500)), 1e18); + assertEq(stdMath.percentDelta(2500, int256(2500)), 0); + assertEq(stdMath.percentDelta(5000, int256(2500)), 1e18); + assertEq(stdMath.percentDelta(7500, int256(2500)), 2e18); + + vm.expectRevert(stdError.divisionError); + stdMath.percentDelta(int256(1), 0); + } + + function testGetPercentDelta_Int_Fuzz(int192 a, int192 b) external { + vm.assume(b != 0); + uint256 absA = getAbs(a); + uint256 absB = getAbs(b); + uint256 absDelta = absA > absB ? absA - absB : absB - absA; + + uint256 manualDelta; + if ((a >= 0 && b >= 0) || (a < 0 && b < 0)) { + manualDelta = absDelta; + } + // (a < 0 && b >= 0) || (a >= 0 && b < 0) + else { + manualDelta = absA + absB; + } + + uint256 manualPercentDelta = manualDelta * 1e18 / absB; + uint256 percentDelta = stdMath.percentDelta(a, b); + + assertEq(percentDelta, manualPercentDelta); + } + + /*////////////////////////////////////////////////////////////////////////// + HELPERS + //////////////////////////////////////////////////////////////////////////*/ + + function getAbs(int256 a) private pure returns (uint256) { + if (a < 0) { + return a == type(int256).min ? uint256(type(int256).max) + 1 : uint256(-a); + } + + return uint256(a); + } +} diff --git a/lib/openzeppelin-contracts/lib/forge-std/test/StdStorage.t.sol b/lib/openzeppelin-contracts/lib/forge-std/test/StdStorage.t.sol new file mode 100644 index 0000000..d4c563a --- /dev/null +++ b/lib/openzeppelin-contracts/lib/forge-std/test/StdStorage.t.sol @@ -0,0 +1,283 @@ +// SPDX-License-Identifier: MIT +pragma solidity >=0.7.0 <0.9.0; + +import "../src/StdStorage.sol"; +import "../src/Test.sol"; + +contract StdStorageTest is Test { + using stdStorage for StdStorage; + + StorageTest internal test; + + function setUp() public { + test = new StorageTest(); + } + + function testStorageHidden() public { + assertEq(uint256(keccak256("my.random.var")), stdstore.target(address(test)).sig("hidden()").find()); + } + + function testStorageObvious() public { + assertEq(uint256(0), stdstore.target(address(test)).sig("exists()").find()); + } + + function testStorageCheckedWriteHidden() public { + stdstore.target(address(test)).sig(test.hidden.selector).checked_write(100); + assertEq(uint256(test.hidden()), 100); + } + + function testStorageCheckedWriteObvious() public { + stdstore.target(address(test)).sig(test.exists.selector).checked_write(100); + assertEq(test.exists(), 100); + } + + function testStorageMapStructA() public { + uint256 slot = + stdstore.target(address(test)).sig(test.map_struct.selector).with_key(address(this)).depth(0).find(); + assertEq(uint256(keccak256(abi.encode(address(this), 4))), slot); + } + + function testStorageMapStructB() public { + uint256 slot = + stdstore.target(address(test)).sig(test.map_struct.selector).with_key(address(this)).depth(1).find(); + assertEq(uint256(keccak256(abi.encode(address(this), 4))) + 1, slot); + } + + function testStorageDeepMap() public { + uint256 slot = stdstore.target(address(test)).sig(test.deep_map.selector).with_key(address(this)).with_key( + address(this) + ).find(); + assertEq(uint256(keccak256(abi.encode(address(this), keccak256(abi.encode(address(this), uint256(5)))))), slot); + } + + function testStorageCheckedWriteDeepMap() public { + stdstore.target(address(test)).sig(test.deep_map.selector).with_key(address(this)).with_key(address(this)) + .checked_write(100); + assertEq(100, test.deep_map(address(this), address(this))); + } + + function testStorageDeepMapStructA() public { + uint256 slot = stdstore.target(address(test)).sig(test.deep_map_struct.selector).with_key(address(this)) + .with_key(address(this)).depth(0).find(); + assertEq( + bytes32(uint256(keccak256(abi.encode(address(this), keccak256(abi.encode(address(this), uint256(6)))))) + 0), + bytes32(slot) + ); + } + + function testStorageDeepMapStructB() public { + uint256 slot = stdstore.target(address(test)).sig(test.deep_map_struct.selector).with_key(address(this)) + .with_key(address(this)).depth(1).find(); + assertEq( + bytes32(uint256(keccak256(abi.encode(address(this), keccak256(abi.encode(address(this), uint256(6)))))) + 1), + bytes32(slot) + ); + } + + function testStorageCheckedWriteDeepMapStructA() public { + stdstore.target(address(test)).sig(test.deep_map_struct.selector).with_key(address(this)).with_key( + address(this) + ).depth(0).checked_write(100); + (uint256 a, uint256 b) = test.deep_map_struct(address(this), address(this)); + assertEq(100, a); + assertEq(0, b); + } + + function testStorageCheckedWriteDeepMapStructB() public { + stdstore.target(address(test)).sig(test.deep_map_struct.selector).with_key(address(this)).with_key( + address(this) + ).depth(1).checked_write(100); + (uint256 a, uint256 b) = test.deep_map_struct(address(this), address(this)); + assertEq(0, a); + assertEq(100, b); + } + + function testStorageCheckedWriteMapStructA() public { + stdstore.target(address(test)).sig(test.map_struct.selector).with_key(address(this)).depth(0).checked_write(100); + (uint256 a, uint256 b) = test.map_struct(address(this)); + assertEq(a, 100); + assertEq(b, 0); + } + + function testStorageCheckedWriteMapStructB() public { + stdstore.target(address(test)).sig(test.map_struct.selector).with_key(address(this)).depth(1).checked_write(100); + (uint256 a, uint256 b) = test.map_struct(address(this)); + assertEq(a, 0); + assertEq(b, 100); + } + + function testStorageStructA() public { + uint256 slot = stdstore.target(address(test)).sig(test.basic.selector).depth(0).find(); + assertEq(uint256(7), slot); + } + + function testStorageStructB() public { + uint256 slot = stdstore.target(address(test)).sig(test.basic.selector).depth(1).find(); + assertEq(uint256(7) + 1, slot); + } + + function testStorageCheckedWriteStructA() public { + stdstore.target(address(test)).sig(test.basic.selector).depth(0).checked_write(100); + (uint256 a, uint256 b) = test.basic(); + assertEq(a, 100); + assertEq(b, 1337); + } + + function testStorageCheckedWriteStructB() public { + stdstore.target(address(test)).sig(test.basic.selector).depth(1).checked_write(100); + (uint256 a, uint256 b) = test.basic(); + assertEq(a, 1337); + assertEq(b, 100); + } + + function testStorageMapAddrFound() public { + uint256 slot = stdstore.target(address(test)).sig(test.map_addr.selector).with_key(address(this)).find(); + assertEq(uint256(keccak256(abi.encode(address(this), uint256(1)))), slot); + } + + function testStorageMapUintFound() public { + uint256 slot = stdstore.target(address(test)).sig(test.map_uint.selector).with_key(100).find(); + assertEq(uint256(keccak256(abi.encode(100, uint256(2)))), slot); + } + + function testStorageCheckedWriteMapUint() public { + stdstore.target(address(test)).sig(test.map_uint.selector).with_key(100).checked_write(100); + assertEq(100, test.map_uint(100)); + } + + function testStorageCheckedWriteMapAddr() public { + stdstore.target(address(test)).sig(test.map_addr.selector).with_key(address(this)).checked_write(100); + assertEq(100, test.map_addr(address(this))); + } + + function testStorageCheckedWriteMapBool() public { + stdstore.target(address(test)).sig(test.map_bool.selector).with_key(address(this)).checked_write(true); + assertTrue(test.map_bool(address(this))); + } + + function testFailStorageCheckedWriteMapPacked() public { + // expect PackedSlot error but not external call so cant expectRevert + stdstore.target(address(test)).sig(test.read_struct_lower.selector).with_key(address(uint160(1337))) + .checked_write(100); + } + + function testStorageCheckedWriteMapPackedSuccess() public { + uint256 full = test.map_packed(address(1337)); + // keep upper 128, set lower 128 to 1337 + full = (full & (uint256((1 << 128) - 1) << 128)) | 1337; + stdstore.target(address(test)).sig(test.map_packed.selector).with_key(address(uint160(1337))).checked_write( + full + ); + assertEq(1337, test.read_struct_lower(address(1337))); + } + + function testFailStorageConst() public { + // vm.expectRevert(abi.encodeWithSignature("NotStorage(bytes4)", bytes4(keccak256("const()")))); + stdstore.target(address(test)).sig("const()").find(); + } + + function testFailStorageNativePack() public { + stdstore.target(address(test)).sig(test.tA.selector).find(); + stdstore.target(address(test)).sig(test.tB.selector).find(); + + // these both would fail + stdstore.target(address(test)).sig(test.tC.selector).find(); + stdstore.target(address(test)).sig(test.tD.selector).find(); + } + + function testStorageReadBytes32() public { + bytes32 val = stdstore.target(address(test)).sig(test.tE.selector).read_bytes32(); + assertEq(val, hex"1337"); + } + + function testStorageReadBool_False() public { + bool val = stdstore.target(address(test)).sig(test.tB.selector).read_bool(); + assertEq(val, false); + } + + function testStorageReadBool_True() public { + bool val = stdstore.target(address(test)).sig(test.tH.selector).read_bool(); + assertEq(val, true); + } + + function testStorageReadBool_Revert() public { + vm.expectRevert("stdStorage read_bool(StdStorage): Cannot decode. Make sure you are reading a bool."); + this.readNonBoolValue(); + } + + function readNonBoolValue() public { + stdstore.target(address(test)).sig(test.tE.selector).read_bool(); + } + + function testStorageReadAddress() public { + address val = stdstore.target(address(test)).sig(test.tF.selector).read_address(); + assertEq(val, address(1337)); + } + + function testStorageReadUint() public { + uint256 val = stdstore.target(address(test)).sig(test.exists.selector).read_uint(); + assertEq(val, 1); + } + + function testStorageReadInt() public { + int256 val = stdstore.target(address(test)).sig(test.tG.selector).read_int(); + assertEq(val, type(int256).min); + } +} + +contract StorageTest { + uint256 public exists = 1; + mapping(address => uint256) public map_addr; + mapping(uint256 => uint256) public map_uint; + mapping(address => uint256) public map_packed; + mapping(address => UnpackedStruct) public map_struct; + mapping(address => mapping(address => uint256)) public deep_map; + mapping(address => mapping(address => UnpackedStruct)) public deep_map_struct; + UnpackedStruct public basic; + + uint248 public tA; + bool public tB; + + bool public tC = false; + uint248 public tD = 1; + + struct UnpackedStruct { + uint256 a; + uint256 b; + } + + mapping(address => bool) public map_bool; + + bytes32 public tE = hex"1337"; + address public tF = address(1337); + int256 public tG = type(int256).min; + bool public tH = true; + + constructor() { + basic = UnpackedStruct({a: 1337, b: 1337}); + + uint256 two = (1 << 128) | 1; + map_packed[msg.sender] = two; + map_packed[address(uint160(1337))] = 1 << 128; + } + + function read_struct_upper(address who) public view returns (uint256) { + return map_packed[who] >> 128; + } + + function read_struct_lower(address who) public view returns (uint256) { + return map_packed[who] & ((1 << 128) - 1); + } + + function hidden() public view returns (bytes32 t) { + bytes32 slot = keccak256("my.random.var"); + /// @solidity memory-safe-assembly + assembly { + t := sload(slot) + } + } + + function const() public pure returns (bytes32 t) { + t = bytes32(hex"1337"); + } +} diff --git a/lib/openzeppelin-contracts/lib/forge-std/test/StdUtils.t.sol b/lib/openzeppelin-contracts/lib/forge-std/test/StdUtils.t.sol new file mode 100644 index 0000000..f53a71b --- /dev/null +++ b/lib/openzeppelin-contracts/lib/forge-std/test/StdUtils.t.sol @@ -0,0 +1,191 @@ +// SPDX-License-Identifier: MIT +pragma solidity >=0.7.0 <0.9.0; + +import "../src/Test.sol"; + +contract StdUtilsTest is Test { + function testBound() public { + assertEq(bound(uint256(5), 0, 4), 0); + assertEq(bound(uint256(0), 69, 69), 69); + assertEq(bound(uint256(0), 68, 69), 68); + assertEq(bound(uint256(10), 150, 190), 174); + assertEq(bound(uint256(300), 2800, 3200), 3107); + assertEq(bound(uint256(9999), 1337, 6666), 4669); + } + + function testBound_WithinRange() public { + assertEq(bound(uint256(51), 50, 150), 51); + assertEq(bound(uint256(51), 50, 150), bound(bound(uint256(51), 50, 150), 50, 150)); + assertEq(bound(uint256(149), 50, 150), 149); + assertEq(bound(uint256(149), 50, 150), bound(bound(uint256(149), 50, 150), 50, 150)); + } + + function testBound_EdgeCoverage() public { + assertEq(bound(uint256(0), 50, 150), 50); + assertEq(bound(uint256(1), 50, 150), 51); + assertEq(bound(uint256(2), 50, 150), 52); + assertEq(bound(uint256(3), 50, 150), 53); + assertEq(bound(type(uint256).max, 50, 150), 150); + assertEq(bound(type(uint256).max - 1, 50, 150), 149); + assertEq(bound(type(uint256).max - 2, 50, 150), 148); + assertEq(bound(type(uint256).max - 3, 50, 150), 147); + } + + function testBound_DistributionIsEven(uint256 min, uint256 size) public { + size = size % 100 + 1; + min = bound(min, UINT256_MAX / 2, UINT256_MAX / 2 + size); + uint256 max = min + size - 1; + uint256 result; + + for (uint256 i = 1; i <= size * 4; ++i) { + // x > max + result = bound(max + i, min, max); + assertEq(result, min + (i - 1) % size); + // x < min + result = bound(min - i, min, max); + assertEq(result, max - (i - 1) % size); + } + } + + function testBound(uint256 num, uint256 min, uint256 max) public { + if (min > max) (min, max) = (max, min); + + uint256 result = bound(num, min, max); + + assertGe(result, min); + assertLe(result, max); + assertEq(result, bound(result, min, max)); + if (num >= min && num <= max) assertEq(result, num); + } + + function testBoundUint256Max() public { + assertEq(bound(0, type(uint256).max - 1, type(uint256).max), type(uint256).max - 1); + assertEq(bound(1, type(uint256).max - 1, type(uint256).max), type(uint256).max); + } + + function testCannotBoundMaxLessThanMin() public { + vm.expectRevert(bytes("StdUtils bound(uint256,uint256,uint256): Max is less than min.")); + bound(uint256(5), 100, 10); + } + + function testCannotBoundMaxLessThanMin(uint256 num, uint256 min, uint256 max) public { + vm.assume(min > max); + vm.expectRevert(bytes("StdUtils bound(uint256,uint256,uint256): Max is less than min.")); + bound(num, min, max); + } + + function testBoundInt() public { + assertEq(bound(-3, 0, 4), 2); + assertEq(bound(0, -69, -69), -69); + assertEq(bound(0, -69, -68), -68); + assertEq(bound(-10, 150, 190), 154); + assertEq(bound(-300, 2800, 3200), 2908); + assertEq(bound(9999, -1337, 6666), 1995); + } + + function testBoundInt_WithinRange() public { + assertEq(bound(51, -50, 150), 51); + assertEq(bound(51, -50, 150), bound(bound(51, -50, 150), -50, 150)); + assertEq(bound(149, -50, 150), 149); + assertEq(bound(149, -50, 150), bound(bound(149, -50, 150), -50, 150)); + } + + function testBoundInt_EdgeCoverage() public { + assertEq(bound(type(int256).min, -50, 150), -50); + assertEq(bound(type(int256).min + 1, -50, 150), -49); + assertEq(bound(type(int256).min + 2, -50, 150), -48); + assertEq(bound(type(int256).min + 3, -50, 150), -47); + assertEq(bound(type(int256).min, 10, 150), 10); + assertEq(bound(type(int256).min + 1, 10, 150), 11); + assertEq(bound(type(int256).min + 2, 10, 150), 12); + assertEq(bound(type(int256).min + 3, 10, 150), 13); + + assertEq(bound(type(int256).max, -50, 150), 150); + assertEq(bound(type(int256).max - 1, -50, 150), 149); + assertEq(bound(type(int256).max - 2, -50, 150), 148); + assertEq(bound(type(int256).max - 3, -50, 150), 147); + assertEq(bound(type(int256).max, -50, -10), -10); + assertEq(bound(type(int256).max - 1, -50, -10), -11); + assertEq(bound(type(int256).max - 2, -50, -10), -12); + assertEq(bound(type(int256).max - 3, -50, -10), -13); + } + + function testBoundInt_DistributionIsEven(int256 min, uint256 size) public { + size = size % 100 + 1; + min = bound(min, -int256(size / 2), int256(size - size / 2)); + int256 max = min + int256(size) - 1; + int256 result; + + for (uint256 i = 1; i <= size * 4; ++i) { + // x > max + result = bound(max + int256(i), min, max); + assertEq(result, min + int256((i - 1) % size)); + // x < min + result = bound(min - int256(i), min, max); + assertEq(result, max - int256((i - 1) % size)); + } + } + + function testBoundInt(int256 num, int256 min, int256 max) public { + if (min > max) (min, max) = (max, min); + + int256 result = bound(num, min, max); + + assertGe(result, min); + assertLe(result, max); + assertEq(result, bound(result, min, max)); + if (num >= min && num <= max) assertEq(result, num); + } + + function testBoundIntInt256Max() public { + assertEq(bound(0, type(int256).max - 1, type(int256).max), type(int256).max - 1); + assertEq(bound(1, type(int256).max - 1, type(int256).max), type(int256).max); + } + + function testBoundIntInt256Min() public { + assertEq(bound(0, type(int256).min, type(int256).min + 1), type(int256).min); + assertEq(bound(1, type(int256).min, type(int256).min + 1), type(int256).min + 1); + } + + function testCannotBoundIntMaxLessThanMin() public { + vm.expectRevert(bytes("StdUtils bound(int256,int256,int256): Max is less than min.")); + bound(-5, 100, 10); + } + + function testCannotBoundIntMaxLessThanMin(int256 num, int256 min, int256 max) public { + vm.assume(min > max); + vm.expectRevert(bytes("StdUtils bound(int256,int256,int256): Max is less than min.")); + bound(num, min, max); + } + + function testGenerateCreateAddress() external { + address deployer = 0x6C9FC64A53c1b71FB3f9Af64d1ae3A4931A5f4E9; + uint256 nonce = 14; + address createAddress = computeCreateAddress(deployer, nonce); + assertEq(createAddress, 0x68b3465833fb72A70ecDF485E0e4C7bD8665Fc45); + } + + function testGenerateCreate2Address() external { + bytes32 salt = bytes32(uint256(31415)); + bytes32 initcodeHash = keccak256(abi.encode(0x6080)); + address deployer = 0x6C9FC64A53c1b71FB3f9Af64d1ae3A4931A5f4E9; + address create2Address = computeCreate2Address(salt, initcodeHash, deployer); + assertEq(create2Address, 0xB147a5d25748fda14b463EB04B111027C290f4d3); + } + + function testBytesToUint() external { + bytes memory maxUint = hex"ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff"; + bytes memory two = hex"02"; + bytes memory millionEther = hex"d3c21bcecceda1000000"; + + assertEq(bytesToUint(maxUint), type(uint256).max); + assertEq(bytesToUint(two), 2); + assertEq(bytesToUint(millionEther), 1_000_000 ether); + } + + function testCannotConvertGT32Bytes() external { + bytes memory thirty3Bytes = hex"ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff"; + vm.expectRevert("StdUtils bytesToUint(bytes): Bytes length exceeds 32."); + bytesToUint(thirty3Bytes); + } +} diff --git a/lib/openzeppelin-contracts/lib/forge-std/test/compilation/CompilationScript.sol b/lib/openzeppelin-contracts/lib/forge-std/test/compilation/CompilationScript.sol new file mode 100644 index 0000000..e205cff --- /dev/null +++ b/lib/openzeppelin-contracts/lib/forge-std/test/compilation/CompilationScript.sol @@ -0,0 +1,10 @@ +// SPDX-License-Identifier: MIT +pragma solidity >=0.6.2 <0.9.0; + +pragma experimental ABIEncoderV2; + +import "../../src/Script.sol"; + +// The purpose of this contract is to benchmark compilation time to avoid accidentally introducing +// a change that results in very long compilation times with via-ir. See https://github.com/foundry-rs/forge-std/issues/207 +contract CompilationScript is Script {} diff --git a/lib/openzeppelin-contracts/lib/forge-std/test/compilation/CompilationScriptBase.sol b/lib/openzeppelin-contracts/lib/forge-std/test/compilation/CompilationScriptBase.sol new file mode 100644 index 0000000..ce8e0e9 --- /dev/null +++ b/lib/openzeppelin-contracts/lib/forge-std/test/compilation/CompilationScriptBase.sol @@ -0,0 +1,10 @@ +// SPDX-License-Identifier: MIT +pragma solidity >=0.6.2 <0.9.0; + +pragma experimental ABIEncoderV2; + +import "../../src/Script.sol"; + +// The purpose of this contract is to benchmark compilation time to avoid accidentally introducing +// a change that results in very long compilation times with via-ir. See https://github.com/foundry-rs/forge-std/issues/207 +contract CompilationScriptBase is ScriptBase {} diff --git a/lib/openzeppelin-contracts/lib/forge-std/test/compilation/CompilationTest.sol b/lib/openzeppelin-contracts/lib/forge-std/test/compilation/CompilationTest.sol new file mode 100644 index 0000000..9beeafe --- /dev/null +++ b/lib/openzeppelin-contracts/lib/forge-std/test/compilation/CompilationTest.sol @@ -0,0 +1,10 @@ +// SPDX-License-Identifier: MIT +pragma solidity >=0.6.2 <0.9.0; + +pragma experimental ABIEncoderV2; + +import "../../src/Test.sol"; + +// The purpose of this contract is to benchmark compilation time to avoid accidentally introducing +// a change that results in very long compilation times with via-ir. See https://github.com/foundry-rs/forge-std/issues/207 +contract CompilationTest is Test {} diff --git a/lib/openzeppelin-contracts/lib/forge-std/test/compilation/CompilationTestBase.sol b/lib/openzeppelin-contracts/lib/forge-std/test/compilation/CompilationTestBase.sol new file mode 100644 index 0000000..e993535 --- /dev/null +++ b/lib/openzeppelin-contracts/lib/forge-std/test/compilation/CompilationTestBase.sol @@ -0,0 +1,10 @@ +// SPDX-License-Identifier: MIT +pragma solidity >=0.6.2 <0.9.0; + +pragma experimental ABIEncoderV2; + +import "../../src/Test.sol"; + +// The purpose of this contract is to benchmark compilation time to avoid accidentally introducing +// a change that results in very long compilation times with via-ir. See https://github.com/foundry-rs/forge-std/issues/207 +contract CompilationTestBase is TestBase {} diff --git a/lib/openzeppelin-contracts/lib/forge-std/test/fixtures/broadcast.log.json b/lib/openzeppelin-contracts/lib/forge-std/test/fixtures/broadcast.log.json new file mode 100644 index 0000000..0a0200b --- /dev/null +++ b/lib/openzeppelin-contracts/lib/forge-std/test/fixtures/broadcast.log.json @@ -0,0 +1,187 @@ +{ + "transactions": [ + { + "hash": "0xc6006863c267735a11476b7f15b15bc718e117e2da114a2be815dd651e1a509f", + "type": "CALL", + "contractName": "Test", + "contractAddress": "0xe7f1725e7734ce288f8367e1bb143e90bb3f0512", + "function": "multiple_arguments(uint256,address,uint256[]):(uint256)", + "arguments": ["1", "0000000000000000000000000000000000001337", "[3,4]"], + "tx": { + "type": "0x02", + "from": "0xf39fd6e51aad88f6f4ce6ab8827279cfffb92266", + "to": "0xe7f1725e7734ce288f8367e1bb143e90bb3f0512", + "gas": "0x73b9", + "value": "0x0", + "data": 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"status": "0x1", + "logsBloom": "0x00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000", + "effectiveGasPrice": "0xee6b2800" + } + ], + "libraries": [ + "src/Broadcast.t.sol:F:0x5fbdb2315678afecb367f032d93f642f64180aa3" + ], + "pending": [], + "path": "broadcast/Broadcast.t.sol/31337/run-latest.json", + "returns": {}, + "timestamp": 1655140035 +} diff --git a/lib/openzeppelin-contracts/logo.svg b/lib/openzeppelin-contracts/logo.svg new file mode 100644 index 0000000..f1e14c2 --- /dev/null +++ b/lib/openzeppelin-contracts/logo.svg @@ -0,0 +1,15 @@ + + + + + + + + + + + + + + + diff --git a/lib/openzeppelin-contracts/netlify.toml b/lib/openzeppelin-contracts/netlify.toml new file mode 100644 index 0000000..0447f41 --- /dev/null +++ b/lib/openzeppelin-contracts/netlify.toml @@ -0,0 +1,3 @@ +[build] +command = "npm run docs" +publish = "build/site" diff --git a/lib/openzeppelin-contracts/package-lock.json b/lib/openzeppelin-contracts/package-lock.json new file mode 100644 index 0000000..51a7185 --- /dev/null +++ b/lib/openzeppelin-contracts/package-lock.json @@ -0,0 +1,28922 @@ +{ + "name": "openzeppelin-solidity", + "version": "4.8.0", + "lockfileVersion": 2, + "requires": true, + "packages": { + "": { + "name": "openzeppelin-solidity", + "version": "4.8.0", + "license": "MIT", + "bin": { + "openzeppelin-contracts-migrate-imports": "scripts/migrate-imports.js" + }, + "devDependencies": { + "@changesets/changelog-github": "^0.4.8", + "@changesets/cli": "^2.26.0", + "@changesets/pre": "^1.0.14", + "@changesets/read": 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"/build/contracts/*.json", + "!/contracts/mocks/**/*" + ], + "bin": { + "openzeppelin-contracts-migrate-imports": "scripts/migrate-imports.js" + }, + "scripts": { + "compile": "hardhat compile", + "coverage": "env COVERAGE=true hardhat coverage", + "docs": "npm run prepare-docs && oz-docs", + "docs:watch": "oz-docs watch contracts docs/templates docs/config.js", + "prepare-docs": "scripts/prepare-docs.sh", + "lint": "npm run lint:js && npm run lint:sol", + "lint:fix": "npm run lint:js:fix && npm run lint:sol:fix", + "lint:js": "prettier --loglevel warn --ignore-path .gitignore '**/*.{js,ts}' --check && eslint --ignore-path .gitignore .", + "lint:js:fix": "prettier --loglevel warn --ignore-path .gitignore '**/*.{js,ts}' --write && eslint --ignore-path .gitignore . --fix", + "lint:sol": "prettier --loglevel warn --ignore-path .gitignore '{contracts,test}/**/*.sol' --check && solhint '{contracts,test}/**/*.sol'", + "lint:sol:fix": "prettier --loglevel warn --ignore-path .gitignore '{contracts,test}/**/*.sol' --write", + "clean": "hardhat clean && rimraf build contracts/build", + "prepare": "scripts/prepare.sh", + "prepack": "scripts/prepack.sh", + "generate": "scripts/generate/run.js", + "release": "scripts/release/release.sh", + "version": "scripts/release/version.sh", + "test": "hardhat test", + "test:inheritance": "scripts/checks/inheritance-ordering.js artifacts/build-info/*", + "test:generation": "scripts/checks/generation.sh", + "gas-report": "env ENABLE_GAS_REPORT=true npm run test", + "slither": "npm run clean && slither . --detect reentrancy-eth,reentrancy-no-eth,reentrancy-unlimited-gas" + }, + "repository": { + "type": "git", + "url": "https://github.com/OpenZeppelin/openzeppelin-contracts.git" + }, + "keywords": [ + "solidity", + "ethereum", + "smart", + "contracts", + "security", + "zeppelin" + ], + "author": "OpenZeppelin Community ", + "license": "MIT", + "bugs": { + "url": "https://github.com/OpenZeppelin/openzeppelin-contracts/issues" + }, + "homepage": "https://openzeppelin.com/contracts/", + "devDependencies": { + "@changesets/changelog-github": "^0.4.8", + "@changesets/cli": "^2.26.0", + "@changesets/pre": "^1.0.14", + "@changesets/read": "^0.5.9", + "@nomicfoundation/hardhat-network-helpers": "^1.0.3", + "@nomiclabs/hardhat-truffle5": "^2.0.5", + "@nomiclabs/hardhat-web3": "^2.0.0", + "@openzeppelin/docs-utils": "^0.1.3", + "@openzeppelin/test-helpers": "^0.5.13", + "chai": "^4.2.0", + "eslint": "^8.30.0", + "eslint-config-prettier": "^8.5.0", + "eth-sig-util": "^3.0.0", + "ethereumjs-util": "^7.0.7", + "ethereumjs-wallet": "^1.0.1", + "glob": "^8.0.3", + "graphlib": "^2.1.8", + "hardhat": "^2.9.1", + "hardhat-exposed": "^0.3.0", + "hardhat-gas-reporter": "^1.0.4", + "hardhat-ignore-warnings": "^0.2.0", + "keccak256": "^1.0.2", + "lodash.startcase": "^4.4.0", + "lodash.zip": "^4.2.0", + "merkletreejs": "^0.2.13", + "micromatch": "^4.0.2", + "prettier": "^2.8.1", + "prettier-plugin-solidity": "^1.1.0", + "rimraf": "^3.0.2", + "semver": "^7.3.5", + "solhint": "^3.3.6", + "solidity-ast": "^0.4.25", + "solidity-coverage": "^0.8.0", + "solidity-docgen": "^0.6.0-beta.29", + "web3": "^1.3.0", + "yargs": "^17.0.0" + } +} diff --git a/lib/openzeppelin-contracts/renovate.json b/lib/openzeppelin-contracts/renovate.json new file mode 100644 index 0000000..875bf6e --- /dev/null +++ b/lib/openzeppelin-contracts/renovate.json @@ -0,0 +1,4 @@ +{ + "extends": ["github>OpenZeppelin/configs"], + "labels": ["ignore-changelog"] +} diff --git a/lib/openzeppelin-contracts/scripts/checks/compareGasReports.js b/lib/openzeppelin-contracts/scripts/checks/compareGasReports.js new file mode 100755 index 0000000..ca99dea --- /dev/null +++ b/lib/openzeppelin-contracts/scripts/checks/compareGasReports.js @@ -0,0 +1,233 @@ +#!/usr/bin/env node + +const fs = require('fs'); +const chalk = require('chalk'); +const { argv } = require('yargs') + .env() + .options({ + style: { + type: 'string', + choices: ['shell', 'markdown'], + default: 'shell', + }, + }); + +// Deduce base tx cost from the percentage denominator +const BASE_TX_COST = 21000; + +// Utilities +function sum(...args) { + return args.reduce((a, b) => a + b, 0); +} + +function average(...args) { + return sum(...args) / args.length; +} + +function variation(current, previous, offset = 0) { + return { + value: current, + delta: current - previous, + prcnt: (100 * (current - previous)) / (previous - offset), + }; +} + +// Report class +class Report { + // Read report file + static load(filepath) { + return JSON.parse(fs.readFileSync(filepath, 'utf8')); + } + + // Compare two reports + static compare(update, ref, opts = { hideEqual: true }) { + if (JSON.stringify(update.config.metadata) !== JSON.stringify(ref.config.metadata)) { + throw new Error('Reports produced with non matching metadata'); + } + + const deployments = update.info.deployments + .map(contract => + Object.assign(contract, { previousVersion: ref.info.deployments.find(({ name }) => name === contract.name) }), + ) + .filter(contract => contract.gasData?.length && contract.previousVersion?.gasData?.length) + .flatMap(contract => [ + { + contract: contract.name, + method: '[bytecode length]', + avg: variation(contract.bytecode.length / 2 - 1, contract.previousVersion.bytecode.length / 2 - 1), + }, + { + contract: contract.name, + method: '[construction cost]', + avg: variation( + ...[contract.gasData, contract.previousVersion.gasData].map(x => Math.round(average(...x))), + BASE_TX_COST, + ), + }, + ]) + .sort((a, b) => `${a.contract}:${a.method}`.localeCompare(`${b.contract}:${b.method}`)); + + const methods = Object.keys(update.info.methods) + .filter(key => ref.info.methods[key]) + .filter(key => update.info.methods[key].numberOfCalls > 0) + .filter(key => update.info.methods[key].numberOfCalls === ref.info.methods[key].numberOfCalls) + .map(key => ({ + contract: ref.info.methods[key].contract, + method: ref.info.methods[key].fnSig, + min: variation(...[update, ref].map(x => Math.min(...x.info.methods[key].gasData)), BASE_TX_COST), + max: variation(...[update, ref].map(x => Math.max(...x.info.methods[key].gasData)), BASE_TX_COST), + avg: variation(...[update, ref].map(x => Math.round(average(...x.info.methods[key].gasData))), BASE_TX_COST), + })) + .sort((a, b) => `${a.contract}:${a.method}`.localeCompare(`${b.contract}:${b.method}`)); + + return [] + .concat(deployments, methods) + .filter(row => !opts.hideEqual || row.min?.delta || row.max?.delta || row.avg?.delta); + } +} + +// Display +function center(text, length) { + return text.padStart((text.length + length) / 2).padEnd(length); +} + +function plusSign(num) { + return num > 0 ? '+' : ''; +} + +function formatCellShell(cell) { + const format = chalk[cell?.delta > 0 ? 'red' : cell?.delta < 0 ? 'green' : 'reset']; + return [ + format((!isFinite(cell?.value) ? '-' : cell.value.toString()).padStart(8)), + format((!isFinite(cell?.delta) ? '-' : plusSign(cell.delta) + cell.delta.toString()).padStart(8)), + format((!isFinite(cell?.prcnt) ? '-' : plusSign(cell.prcnt) + cell.prcnt.toFixed(2) + '%').padStart(8)), + ]; +} + +function formatCmpShell(rows) { + const contractLength = Math.max(8, ...rows.map(({ contract }) => contract.length)); + const methodLength = Math.max(7, ...rows.map(({ method }) => method.length)); + + const COLS = [ + { txt: '', length: 0 }, + { txt: 'Contract', length: contractLength }, + { txt: 'Method', length: methodLength }, + { txt: 'Min', length: 30 }, + { txt: 'Max', length: 30 }, + { txt: 'Avg', length: 30 }, + { txt: '', length: 0 }, + ]; + const HEADER = COLS.map(entry => chalk.bold(center(entry.txt, entry.length || 0))) + .join(' | ') + .trim(); + const SEPARATOR = COLS.map(({ length }) => (length > 0 ? '-'.repeat(length + 2) : '')) + .join('|') + .trim(); + + return [ + '', + HEADER, + ...rows.map(entry => + [ + '', + chalk.grey(entry.contract.padEnd(contractLength)), + entry.method.padEnd(methodLength), + ...formatCellShell(entry.min), + ...formatCellShell(entry.max), + ...formatCellShell(entry.avg), + '', + ] + .join(' | ') + .trim(), + ), + '', + ] + .join(`\n${SEPARATOR}\n`) + .trim(); +} + +function alignPattern(align) { + switch (align) { + case 'left': + case undefined: + return ':-'; + case 'right': + return '-:'; + case 'center': + return ':-:'; + } +} + +function trend(value) { + return value > 0 ? ':x:' : value < 0 ? ':heavy_check_mark:' : ':heavy_minus_sign:'; +} + +function formatCellMarkdown(cell) { + return [ + !isFinite(cell?.value) ? '-' : cell.value.toString(), + !isFinite(cell?.delta) ? '-' : plusSign(cell.delta) + cell.delta.toString(), + !isFinite(cell?.prcnt) ? '-' : plusSign(cell.prcnt) + cell.prcnt.toFixed(2) + '%' + trend(cell.delta), + ]; +} + +function formatCmpMarkdown(rows) { + const COLS = [ + { txt: '' }, + { txt: 'Contract', align: 'left' }, + { txt: 'Method', align: 'left' }, + { txt: 'Min', align: 'right' }, + { txt: '(+/-)', align: 'right' }, + { txt: '%', align: 'right' }, + { txt: 'Max', align: 'right' }, + { txt: '(+/-)', align: 'right' }, + { txt: '%', align: 'right' }, + { txt: 'Avg', align: 'right' }, + { txt: '(+/-)', align: 'right' }, + { txt: '%', align: 'right' }, + { txt: '' }, + ]; + const HEADER = COLS.map(entry => entry.txt) + .join(' | ') + .trim(); + const SEPARATOR = COLS.map(entry => (entry.txt ? alignPattern(entry.align) : '')) + .join('|') + .trim(); + + return [ + '# Changes to gas costs', + '', + HEADER, + SEPARATOR, + rows + .map(entry => + [ + '', + entry.contract, + entry.method, + ...formatCellMarkdown(entry.min), + ...formatCellMarkdown(entry.max), + ...formatCellMarkdown(entry.avg), + '', + ] + .join(' | ') + .trim(), + ) + .join('\n'), + '', + ] + .join('\n') + .trim(); +} + +// MAIN +const report = Report.compare(Report.load(argv._[0]), Report.load(argv._[1])); + +switch (argv.style) { + case 'markdown': + console.log(formatCmpMarkdown(report)); + break; + case 'shell': + default: + console.log(formatCmpShell(report)); + break; +} diff --git a/lib/openzeppelin-contracts/scripts/checks/generation.sh b/lib/openzeppelin-contracts/scripts/checks/generation.sh new file mode 100755 index 0000000..00d609f --- /dev/null +++ b/lib/openzeppelin-contracts/scripts/checks/generation.sh @@ -0,0 +1,6 @@ +#!/usr/bin/env bash + +set -euo pipefail + +npm run generate +git diff -R --exit-code diff --git a/lib/openzeppelin-contracts/scripts/checks/inheritance-ordering.js b/lib/openzeppelin-contracts/scripts/checks/inheritance-ordering.js new file mode 100755 index 0000000..45c707e --- /dev/null +++ b/lib/openzeppelin-contracts/scripts/checks/inheritance-ordering.js @@ -0,0 +1,54 @@ +#!/usr/bin/env node + +const path = require('path'); +const graphlib = require('graphlib'); +const { findAll } = require('solidity-ast/utils'); +const { _: artifacts } = require('yargs').argv; + +for (const artifact of artifacts) { + const { output: solcOutput } = require(path.resolve(__dirname, '../..', artifact)); + + const graph = new graphlib.Graph({ directed: true }); + const names = {}; + const linearized = []; + + for (const source in solcOutput.contracts) { + if (source.includes('/mocks/')) { + continue; + } + + for (const contractDef of findAll('ContractDefinition', solcOutput.sources[source].ast)) { + names[contractDef.id] = contractDef.name; + linearized.push(contractDef.linearizedBaseContracts); + + contractDef.linearizedBaseContracts.forEach((c1, i, contracts) => + contracts.slice(i + 1).forEach(c2 => { + graph.setEdge(c1, c2); + }), + ); + } + } + + /// graphlib.alg.findCycles will not find minimal cycles. + /// We are only interested int cycles of lengths 2 (needs proof) + graph.nodes().forEach((x, i, nodes) => + nodes + .slice(i + 1) + .filter(y => graph.hasEdge(x, y) && graph.hasEdge(y, x)) + .forEach(y => { + console.log(`Conflict between ${names[x]} and ${names[y]} detected in the following dependency chains:`); + linearized + .filter(chain => chain.includes(parseInt(x)) && chain.includes(parseInt(y))) + .forEach(chain => { + const comp = chain.indexOf(parseInt(x)) < chain.indexOf(parseInt(y)) ? '>' : '<'; + console.log(`- ${names[x]} ${comp} ${names[y]} in ${names[chain.find(Boolean)]}`); + // console.log(`- ${names[x]} ${comp} ${names[y]}: ${chain.reverse().map(id => names[id]).join(', ')}`); + }); + process.exitCode = 1; + }), + ); +} + +if (!process.exitCode) { + console.log('Contract ordering is consistent.'); +} diff --git a/lib/openzeppelin-contracts/scripts/gen-nav.js b/lib/openzeppelin-contracts/scripts/gen-nav.js new file mode 100644 index 0000000..de3d0da --- /dev/null +++ b/lib/openzeppelin-contracts/scripts/gen-nav.js @@ -0,0 +1,41 @@ +#!/usr/bin/env node + +const path = require('path'); +const glob = require('glob'); +const startCase = require('lodash.startcase'); + +const baseDir = process.argv[2]; + +const files = glob.sync(baseDir + '/**/*.adoc').map(f => path.relative(baseDir, f)); + +console.log('.API'); + +function getPageTitle(directory) { + switch (directory) { + case 'metatx': + return 'Meta Transactions'; + case 'common': + return 'Common (Tokens)'; + default: + return startCase(directory); + } +} + +const links = files.map(file => { + const doc = file.replace(baseDir, ''); + const title = path.parse(file).name; + + return { + xref: `* xref:${doc}[${getPageTitle(title)}]`, + title, + }; +}); + +// Case-insensitive sort based on titles (so 'token/ERC20' gets sorted as 'erc20') +const sortedLinks = links.sort(function (a, b) { + return a.title.toLowerCase().localeCompare(b.title.toLowerCase(), undefined, { numeric: true }); +}); + +for (const link of sortedLinks) { + console.log(link.xref); +} diff --git a/lib/openzeppelin-contracts/scripts/generate/format-lines.js b/lib/openzeppelin-contracts/scripts/generate/format-lines.js new file mode 100644 index 0000000..fa3d6b1 --- /dev/null +++ b/lib/openzeppelin-contracts/scripts/generate/format-lines.js @@ -0,0 +1,16 @@ +function formatLines(...lines) { + return [...indentEach(0, lines)].join('\n') + '\n'; +} + +function* indentEach(indent, lines) { + for (const line of lines) { + if (Array.isArray(line)) { + yield* indentEach(indent + 1, line); + } else { + const padding = ' '.repeat(indent); + yield* line.split('\n').map(subline => (subline === '' ? '' : padding + subline)); + } + } +} + +module.exports = formatLines; diff --git a/lib/openzeppelin-contracts/scripts/generate/run.js b/lib/openzeppelin-contracts/scripts/generate/run.js new file mode 100755 index 0000000..a348232 --- /dev/null +++ b/lib/openzeppelin-contracts/scripts/generate/run.js @@ -0,0 +1,36 @@ +#!/usr/bin/env node + +const cp = require('child_process'); +const fs = require('fs'); +const path = require('path'); +const format = require('./format-lines'); + +function getVersion(path) { + try { + return fs.readFileSync(path, 'utf8').match(/\/\/ OpenZeppelin Contracts \(last updated v[^)]+\)/)[0]; + } catch (err) { + return null; + } +} + +for (const [file, template] of Object.entries({ + 'utils/math/SafeCast.sol': './templates/SafeCast.js', + 'utils/structs/EnumerableSet.sol': './templates/EnumerableSet.js', + 'utils/structs/EnumerableMap.sol': './templates/EnumerableMap.js', + 'utils/Checkpoints.sol': './templates/Checkpoints.js', +})) { + const script = path.relative(path.join(__dirname, '../..'), __filename); + const input = path.join(path.dirname(script), template); + const output = `./contracts/${file}`; + const version = getVersion(output); + const content = format( + '// SPDX-License-Identifier: MIT', + ...(version ? [version + ` (${file})`] : []), + `// This file was procedurally generated from ${input}.`, + '', + require(template), + ); + + fs.writeFileSync(output, content); + cp.execFileSync('prettier', ['--write', output]); +} diff --git a/lib/openzeppelin-contracts/scripts/generate/templates/Checkpoints.js b/lib/openzeppelin-contracts/scripts/generate/templates/Checkpoints.js new file mode 100644 index 0000000..afac259 --- /dev/null +++ b/lib/openzeppelin-contracts/scripts/generate/templates/Checkpoints.js @@ -0,0 +1,299 @@ +const format = require('../format-lines'); + +const VALUE_SIZES = [224, 160]; + +const header = `\ +pragma solidity ^0.8.0; + +import "./math/Math.sol"; +import "./math/SafeCast.sol"; + +/** + * @dev This library defines the \`History\` struct, for checkpointing values as they change at different points in + * time, and later looking up past values by block number. See {Votes} as an example. + * + * To create a history of checkpoints define a variable type \`Checkpoints.History\` in your contract, and store a new + * checkpoint for the current transaction block using the {push} function. + * + * _Available since v4.5._ + */ +`; + +const types = opts => `\ +struct ${opts.historyTypeName} { + ${opts.checkpointTypeName}[] ${opts.checkpointFieldName}; +} + +struct ${opts.checkpointTypeName} { + ${opts.keyTypeName} ${opts.keyFieldName}; + ${opts.valueTypeName} ${opts.valueFieldName}; +} +`; + +/* eslint-disable max-len */ +const operations = opts => `\ +/** + * @dev Pushes a (\`key\`, \`value\`) pair into a ${opts.historyTypeName} so that it is stored as the checkpoint. + * + * Returns previous value and new value. + */ +function push( + ${opts.historyTypeName} storage self, + ${opts.keyTypeName} key, + ${opts.valueTypeName} value +) internal returns (${opts.valueTypeName}, ${opts.valueTypeName}) { + return _insert(self.${opts.checkpointFieldName}, key, value); +} + +/** + * @dev Returns the value in the oldest checkpoint with key greater or equal than the search key, or zero if there is none. + */ +function lowerLookup(${opts.historyTypeName} storage self, ${opts.keyTypeName} key) internal view returns (${opts.valueTypeName}) { + uint256 len = self.${opts.checkpointFieldName}.length; + uint256 pos = _lowerBinaryLookup(self.${opts.checkpointFieldName}, key, 0, len); + return pos == len ? 0 : _unsafeAccess(self.${opts.checkpointFieldName}, pos).${opts.valueFieldName}; +} + +/** + * @dev Returns the value in the most recent checkpoint with key lower or equal than the search key. + */ +function upperLookup(${opts.historyTypeName} storage self, ${opts.keyTypeName} key) internal view returns (${opts.valueTypeName}) { + uint256 len = self.${opts.checkpointFieldName}.length; + uint256 pos = _upperBinaryLookup(self.${opts.checkpointFieldName}, key, 0, len); + return pos == 0 ? 0 : _unsafeAccess(self.${opts.checkpointFieldName}, pos - 1).${opts.valueFieldName}; +} +`; + +const legacyOperations = opts => `\ +/** + * @dev Returns the value at a given block number. If a checkpoint is not available at that block, the closest one + * before it is returned, or zero otherwise. Because the number returned corresponds to that at the end of the + * block, the requested block number must be in the past, excluding the current block. + */ +function getAtBlock(${opts.historyTypeName} storage self, uint256 blockNumber) internal view returns (uint256) { + require(blockNumber < block.number, "Checkpoints: block not yet mined"); + uint32 key = SafeCast.toUint32(blockNumber); + + uint256 len = self.${opts.checkpointFieldName}.length; + uint256 pos = _upperBinaryLookup(self.${opts.checkpointFieldName}, key, 0, len); + return pos == 0 ? 0 : _unsafeAccess(self.${opts.checkpointFieldName}, pos - 1).${opts.valueFieldName}; +} + +/** + * @dev Returns the value at a given block number. If a checkpoint is not available at that block, the closest one + * before it is returned, or zero otherwise. Similar to {upperLookup} but optimized for the case when the searched + * checkpoint is probably "recent", defined as being among the last sqrt(N) checkpoints where N is the number of + * checkpoints. + */ +function getAtProbablyRecentBlock(${opts.historyTypeName} storage self, uint256 blockNumber) internal view returns (uint256) { + require(blockNumber < block.number, "Checkpoints: block not yet mined"); + uint32 key = SafeCast.toUint32(blockNumber); + + uint256 len = self.${opts.checkpointFieldName}.length; + + uint256 low = 0; + uint256 high = len; + + if (len > 5) { + uint256 mid = len - Math.sqrt(len); + if (key < _unsafeAccess(self.${opts.checkpointFieldName}, mid)._blockNumber) { + high = mid; + } else { + low = mid + 1; + } + } + + uint256 pos = _upperBinaryLookup(self.${opts.checkpointFieldName}, key, low, high); + + return pos == 0 ? 0 : _unsafeAccess(self.${opts.checkpointFieldName}, pos - 1).${opts.valueFieldName}; +} + +/** + * @dev Pushes a value onto a History so that it is stored as the checkpoint for the current block. + * + * Returns previous value and new value. + */ +function push(${opts.historyTypeName} storage self, uint256 value) internal returns (uint256, uint256) { + return _insert(self.${opts.checkpointFieldName}, SafeCast.toUint32(block.number), SafeCast.toUint224(value)); +} + +/** + * @dev Pushes a value onto a History, by updating the latest value using binary operation \`op\`. The new value will + * be set to \`op(latest, delta)\`. + * + * Returns previous value and new value. + */ +function push( + ${opts.historyTypeName} storage self, + function(uint256, uint256) view returns (uint256) op, + uint256 delta +) internal returns (uint256, uint256) { + return push(self, op(latest(self), delta)); +} +`; + +const common = opts => `\ +/** + * @dev Returns the value in the most recent checkpoint, or zero if there are no checkpoints. + */ +function latest(${opts.historyTypeName} storage self) internal view returns (${opts.valueTypeName}) { + uint256 pos = self.${opts.checkpointFieldName}.length; + return pos == 0 ? 0 : _unsafeAccess(self.${opts.checkpointFieldName}, pos - 1).${opts.valueFieldName}; +} + +/** + * @dev Returns whether there is a checkpoint in the structure (i.e. it is not empty), and if so the key and value + * in the most recent checkpoint. + */ +function latestCheckpoint(${opts.historyTypeName} storage self) + internal + view + returns ( + bool exists, + ${opts.keyTypeName} ${opts.keyFieldName}, + ${opts.valueTypeName} ${opts.valueFieldName} + ) +{ + uint256 pos = self.${opts.checkpointFieldName}.length; + if (pos == 0) { + return (false, 0, 0); + } else { + ${opts.checkpointTypeName} memory ckpt = _unsafeAccess(self.${opts.checkpointFieldName}, pos - 1); + return (true, ckpt.${opts.keyFieldName}, ckpt.${opts.valueFieldName}); + } +} + +/** + * @dev Returns the number of checkpoint. + */ +function length(${opts.historyTypeName} storage self) internal view returns (uint256) { + return self.${opts.checkpointFieldName}.length; +} + +/** + * @dev Pushes a (\`key\`, \`value\`) pair into an ordered list of checkpoints, either by inserting a new checkpoint, + * or by updating the last one. + */ +function _insert( + ${opts.checkpointTypeName}[] storage self, + ${opts.keyTypeName} key, + ${opts.valueTypeName} value +) private returns (${opts.valueTypeName}, ${opts.valueTypeName}) { + uint256 pos = self.length; + + if (pos > 0) { + // Copying to memory is important here. + ${opts.checkpointTypeName} memory last = _unsafeAccess(self, pos - 1); + + // Checkpoint keys must be non-decreasing. + require(last.${opts.keyFieldName} <= key, "Checkpoint: decreasing keys"); + + // Update or push new checkpoint + if (last.${opts.keyFieldName} == key) { + _unsafeAccess(self, pos - 1).${opts.valueFieldName} = value; + } else { + self.push(${opts.checkpointTypeName}({${opts.keyFieldName}: key, ${opts.valueFieldName}: value})); + } + return (last.${opts.valueFieldName}, value); + } else { + self.push(${opts.checkpointTypeName}({${opts.keyFieldName}: key, ${opts.valueFieldName}: value})); + return (0, value); + } +} + +/** + * @dev Return the index of the oldest checkpoint whose key is greater than the search key, or \`high\` if there is none. + * \`low\` and \`high\` define a section where to do the search, with inclusive \`low\` and exclusive \`high\`. + * + * WARNING: \`high\` should not be greater than the array's length. + */ +function _upperBinaryLookup( + ${opts.checkpointTypeName}[] storage self, + ${opts.keyTypeName} key, + uint256 low, + uint256 high +) private view returns (uint256) { + while (low < high) { + uint256 mid = Math.average(low, high); + if (_unsafeAccess(self, mid).${opts.keyFieldName} > key) { + high = mid; + } else { + low = mid + 1; + } + } + return high; +} + +/** + * @dev Return the index of the oldest checkpoint whose key is greater or equal than the search key, or \`high\` if there is none. + * \`low\` and \`high\` define a section where to do the search, with inclusive \`low\` and exclusive \`high\`. + * + * WARNING: \`high\` should not be greater than the array's length. + */ +function _lowerBinaryLookup( + ${opts.checkpointTypeName}[] storage self, + ${opts.keyTypeName} key, + uint256 low, + uint256 high +) private view returns (uint256) { + while (low < high) { + uint256 mid = Math.average(low, high); + if (_unsafeAccess(self, mid).${opts.keyFieldName} < key) { + low = mid + 1; + } else { + high = mid; + } + } + return high; +} + +/** + * @dev Access an element of the array without performing bounds check. The position is assumed to be within bounds. + */ +function _unsafeAccess(${opts.checkpointTypeName}[] storage self, uint256 pos) + private + pure + returns (${opts.checkpointTypeName} storage result) +{ + assembly { + mstore(0, self.slot) + result.slot := add(keccak256(0, 0x20), pos) + } +} +`; +/* eslint-enable max-len */ + +// OPTIONS +const defaultOpts = size => ({ + historyTypeName: `Trace${size}`, + checkpointTypeName: `Checkpoint${size}`, + checkpointFieldName: '_checkpoints', + keyTypeName: `uint${256 - size}`, + keyFieldName: '_key', + valueTypeName: `uint${size}`, + valueFieldName: '_value', +}); + +const OPTS = VALUE_SIZES.map(size => defaultOpts(size)); + +const LEGACY_OPTS = { + ...defaultOpts(224), + historyTypeName: 'History', + checkpointTypeName: 'Checkpoint', + keyFieldName: '_blockNumber', +}; + +// GENERATE +module.exports = format( + header.trimEnd(), + 'library Checkpoints {', + [ + // Legacy types & functions + types(LEGACY_OPTS), + legacyOperations(LEGACY_OPTS), + common(LEGACY_OPTS), + // New flavors + ...OPTS.flatMap(opts => [types(opts), operations(opts), common(opts)]), + ], + '}', +); diff --git a/lib/openzeppelin-contracts/scripts/generate/templates/EnumerableMap.js b/lib/openzeppelin-contracts/scripts/generate/templates/EnumerableMap.js new file mode 100644 index 0000000..dbd502a --- /dev/null +++ b/lib/openzeppelin-contracts/scripts/generate/templates/EnumerableMap.js @@ -0,0 +1,310 @@ +const format = require('../format-lines'); +const { fromBytes32, toBytes32 } = require('./conversion'); + +const TYPES = [ + { name: 'UintToUintMap', keyType: 'uint256', valueType: 'uint256' }, + { name: 'UintToAddressMap', keyType: 'uint256', valueType: 'address' }, + { name: 'AddressToUintMap', keyType: 'address', valueType: 'uint256' }, + { name: 'Bytes32ToUintMap', keyType: 'bytes32', valueType: 'uint256' }, +]; + +/* eslint-disable max-len */ +const header = `\ +pragma solidity ^0.8.0; + +import "./EnumerableSet.sol"; + +/** + * @dev Library for managing an enumerable variant of Solidity's + * https://solidity.readthedocs.io/en/latest/types.html#mapping-types[\`mapping\`] + * type. + * + * Maps have the following properties: + * + * - Entries are added, removed, and checked for existence in constant time + * (O(1)). + * - Entries are enumerated in O(n). No guarantees are made on the ordering. + * + * \`\`\` + * contract Example { + * // Add the library methods + * using EnumerableMap for EnumerableMap.UintToAddressMap; + * + * // Declare a set state variable + * EnumerableMap.UintToAddressMap private myMap; + * } + * \`\`\` + * + * The following map types are supported: + * + * - \`uint256 -> address\` (\`UintToAddressMap\`) since v3.0.0 + * - \`address -> uint256\` (\`AddressToUintMap\`) since v4.6.0 + * - \`bytes32 -> bytes32\` (\`Bytes32ToBytes32Map\`) since v4.6.0 + * - \`uint256 -> uint256\` (\`UintToUintMap\`) since v4.7.0 + * - \`bytes32 -> uint256\` (\`Bytes32ToUintMap\`) since v4.7.0 + * + * [WARNING] + * ==== + * Trying to delete such a structure from storage will likely result in data corruption, rendering the structure + * unusable. + * See https://github.com/ethereum/solidity/pull/11843[ethereum/solidity#11843] for more info. + * + * In order to clean an EnumerableMap, you can either remove all elements one by one or create a fresh instance using an + * array of EnumerableMap. + * ==== + */ +`; +/* eslint-enable max-len */ + +const defaultMap = () => `\ +// To implement this library for multiple types with as little code +// repetition as possible, we write it in terms of a generic Map type with +// bytes32 keys and values. +// The Map implementation uses private functions, and user-facing +// implementations (such as Uint256ToAddressMap) are just wrappers around +// the underlying Map. +// This means that we can only create new EnumerableMaps for types that fit +// in bytes32. + +struct Bytes32ToBytes32Map { + // Storage of keys + EnumerableSet.Bytes32Set _keys; + mapping(bytes32 => bytes32) _values; +} + +/** + * @dev Adds a key-value pair to a map, or updates the value for an existing + * key. O(1). + * + * Returns true if the key was added to the map, that is if it was not + * already present. + */ +function set( + Bytes32ToBytes32Map storage map, + bytes32 key, + bytes32 value +) internal returns (bool) { + map._values[key] = value; + return map._keys.add(key); +} + +/** + * @dev Removes a key-value pair from a map. O(1). + * + * Returns true if the key was removed from the map, that is if it was present. + */ +function remove(Bytes32ToBytes32Map storage map, bytes32 key) internal returns (bool) { + delete map._values[key]; + return map._keys.remove(key); +} + +/** + * @dev Returns true if the key is in the map. O(1). + */ +function contains(Bytes32ToBytes32Map storage map, bytes32 key) internal view returns (bool) { + return map._keys.contains(key); +} + +/** + * @dev Returns the number of key-value pairs in the map. O(1). + */ +function length(Bytes32ToBytes32Map storage map) internal view returns (uint256) { + return map._keys.length(); +} + +/** + * @dev Returns the key-value pair stored at position \`index\` in the map. O(1). + * + * Note that there are no guarantees on the ordering of entries inside the + * array, and it may change when more entries are added or removed. + * + * Requirements: + * + * - \`index\` must be strictly less than {length}. + */ +function at(Bytes32ToBytes32Map storage map, uint256 index) internal view returns (bytes32, bytes32) { + bytes32 key = map._keys.at(index); + return (key, map._values[key]); +} + +/** + * @dev Tries to returns the value associated with \`key\`. O(1). + * Does not revert if \`key\` is not in the map. + */ +function tryGet(Bytes32ToBytes32Map storage map, bytes32 key) internal view returns (bool, bytes32) { + bytes32 value = map._values[key]; + if (value == bytes32(0)) { + return (contains(map, key), bytes32(0)); + } else { + return (true, value); + } +} + +/** + * @dev Returns the value associated with \`key\`. O(1). + * + * Requirements: + * + * - \`key\` must be in the map. + */ +function get(Bytes32ToBytes32Map storage map, bytes32 key) internal view returns (bytes32) { + bytes32 value = map._values[key]; + require(value != 0 || contains(map, key), "EnumerableMap: nonexistent key"); + return value; +} + +/** + * @dev Same as {get}, with a custom error message when \`key\` is not in the map. + * + * CAUTION: This function is deprecated because it requires allocating memory for the error + * message unnecessarily. For custom revert reasons use {tryGet}. + */ +function get( + Bytes32ToBytes32Map storage map, + bytes32 key, + string memory errorMessage +) internal view returns (bytes32) { + bytes32 value = map._values[key]; + require(value != 0 || contains(map, key), errorMessage); + return value; +} + +/** + * @dev Return the an array containing all the keys + * + * WARNING: This operation will copy the entire storage to memory, which can be quite expensive. This is designed + * to mostly be used by view accessors that are queried without any gas fees. Developers should keep in mind that + * this function has an unbounded cost, and using it as part of a state-changing function may render the function + * uncallable if the map grows to a point where copying to memory consumes too much gas to fit in a block. + */ +function keys(Bytes32ToBytes32Map storage map) internal view returns (bytes32[] memory) { + return map._keys.values(); +} +`; + +const customMap = ({ name, keyType, valueType }) => `\ +// ${name} + +struct ${name} { + Bytes32ToBytes32Map _inner; +} + +/** + * @dev Adds a key-value pair to a map, or updates the value for an existing + * key. O(1). + * + * Returns true if the key was added to the map, that is if it was not + * already present. + */ +function set( + ${name} storage map, + ${keyType} key, + ${valueType} value +) internal returns (bool) { + return set(map._inner, ${toBytes32(keyType, 'key')}, ${toBytes32(valueType, 'value')}); +} + +/** + * @dev Removes a value from a map. O(1). + * + * Returns true if the key was removed from the map, that is if it was present. + */ +function remove(${name} storage map, ${keyType} key) internal returns (bool) { + return remove(map._inner, ${toBytes32(keyType, 'key')}); +} + +/** + * @dev Returns true if the key is in the map. O(1). + */ +function contains(${name} storage map, ${keyType} key) internal view returns (bool) { + return contains(map._inner, ${toBytes32(keyType, 'key')}); +} + +/** + * @dev Returns the number of elements in the map. O(1). + */ +function length(${name} storage map) internal view returns (uint256) { + return length(map._inner); +} + +/** + * @dev Returns the element stored at position \`index\` in the map. O(1). + * Note that there are no guarantees on the ordering of values inside the + * array, and it may change when more values are added or removed. + * + * Requirements: + * + * - \`index\` must be strictly less than {length}. + */ +function at(${name} storage map, uint256 index) internal view returns (${keyType}, ${valueType}) { + (bytes32 key, bytes32 value) = at(map._inner, index); + return (${fromBytes32(keyType, 'key')}, ${fromBytes32(valueType, 'value')}); +} + +/** + * @dev Tries to returns the value associated with \`key\`. O(1). + * Does not revert if \`key\` is not in the map. + */ +function tryGet(${name} storage map, ${keyType} key) internal view returns (bool, ${valueType}) { + (bool success, bytes32 value) = tryGet(map._inner, ${toBytes32(keyType, 'key')}); + return (success, ${fromBytes32(valueType, 'value')}); +} + +/** + * @dev Returns the value associated with \`key\`. O(1). + * + * Requirements: + * + * - \`key\` must be in the map. + */ +function get(${name} storage map, ${keyType} key) internal view returns (${valueType}) { + return ${fromBytes32(valueType, `get(map._inner, ${toBytes32(keyType, 'key')})`)}; +} + +/** + * @dev Same as {get}, with a custom error message when \`key\` is not in the map. + * + * CAUTION: This function is deprecated because it requires allocating memory for the error + * message unnecessarily. For custom revert reasons use {tryGet}. + */ +function get( + ${name} storage map, + ${keyType} key, + string memory errorMessage +) internal view returns (${valueType}) { + return ${fromBytes32(valueType, `get(map._inner, ${toBytes32(keyType, 'key')}, errorMessage)`)}; +} + +/** + * @dev Return the an array containing all the keys + * + * WARNING: This operation will copy the entire storage to memory, which can be quite expensive. This is designed + * to mostly be used by view accessors that are queried without any gas fees. Developers should keep in mind that + * this function has an unbounded cost, and using it as part of a state-changing function may render the function + * uncallable if the map grows to a point where copying to memory consumes too much gas to fit in a block. + */ +function keys(${name} storage map) internal view returns (${keyType}[] memory) { + bytes32[] memory store = keys(map._inner); + ${keyType}[] memory result; + + /// @solidity memory-safe-assembly + assembly { + result := store + } + + return result; +} +`; + +// GENERATE +module.exports = format( + header.trimEnd(), + 'library EnumerableMap {', + [ + 'using EnumerableSet for EnumerableSet.Bytes32Set;', + '', + defaultMap(), + TYPES.map(details => customMap(details).trimEnd()).join('\n\n'), + ], + '}', +); diff --git a/lib/openzeppelin-contracts/scripts/generate/templates/EnumerableSet.js b/lib/openzeppelin-contracts/scripts/generate/templates/EnumerableSet.js new file mode 100644 index 0000000..a3af2c3 --- /dev/null +++ b/lib/openzeppelin-contracts/scripts/generate/templates/EnumerableSet.js @@ -0,0 +1,250 @@ +const format = require('../format-lines'); +const { fromBytes32, toBytes32 } = require('./conversion'); + +const TYPES = [ + { name: 'Bytes32Set', type: 'bytes32' }, + { name: 'AddressSet', type: 'address' }, + { name: 'UintSet', type: 'uint256' }, +]; + +/* eslint-disable max-len */ +const header = `\ +pragma solidity ^0.8.0; + +/** + * @dev Library for managing + * https://en.wikipedia.org/wiki/Set_(abstract_data_type)[sets] of primitive + * types. + * + * Sets have the following properties: + * + * - Elements are added, removed, and checked for existence in constant time + * (O(1)). + * - Elements are enumerated in O(n). No guarantees are made on the ordering. + * + * \`\`\` + * contract Example { + * // Add the library methods + * using EnumerableSet for EnumerableSet.AddressSet; + * + * // Declare a set state variable + * EnumerableSet.AddressSet private mySet; + * } + * \`\`\` + * + * As of v3.3.0, sets of type \`bytes32\` (\`Bytes32Set\`), \`address\` (\`AddressSet\`) + * and \`uint256\` (\`UintSet\`) are supported. + * + * [WARNING] + * ==== + * Trying to delete such a structure from storage will likely result in data corruption, rendering the structure + * unusable. + * See https://github.com/ethereum/solidity/pull/11843[ethereum/solidity#11843] for more info. + * + * In order to clean an EnumerableSet, you can either remove all elements one by one or create a fresh instance using an + * array of EnumerableSet. + * ==== + */ +`; +/* eslint-enable max-len */ + +const defaultSet = () => `\ +// To implement this library for multiple types with as little code +// repetition as possible, we write it in terms of a generic Set type with +// bytes32 values. +// The Set implementation uses private functions, and user-facing +// implementations (such as AddressSet) are just wrappers around the +// underlying Set. +// This means that we can only create new EnumerableSets for types that fit +// in bytes32. + +struct Set { + // Storage of set values + bytes32[] _values; + // Position of the value in the \`values\` array, plus 1 because index 0 + // means a value is not in the set. + mapping(bytes32 => uint256) _indexes; +} + +/** + * @dev Add a value to a set. O(1). + * + * Returns true if the value was added to the set, that is if it was not + * already present. + */ +function _add(Set storage set, bytes32 value) private returns (bool) { + if (!_contains(set, value)) { + set._values.push(value); + // The value is stored at length-1, but we add 1 to all indexes + // and use 0 as a sentinel value + set._indexes[value] = set._values.length; + return true; + } else { + return false; + } +} + +/** + * @dev Removes a value from a set. O(1). + * + * Returns true if the value was removed from the set, that is if it was + * present. + */ +function _remove(Set storage set, bytes32 value) private returns (bool) { + // We read and store the value's index to prevent multiple reads from the same storage slot + uint256 valueIndex = set._indexes[value]; + + if (valueIndex != 0) { + // Equivalent to contains(set, value) + // To delete an element from the _values array in O(1), we swap the element to delete with the last one in + // the array, and then remove the last element (sometimes called as 'swap and pop'). + // This modifies the order of the array, as noted in {at}. + + uint256 toDeleteIndex = valueIndex - 1; + uint256 lastIndex = set._values.length - 1; + + if (lastIndex != toDeleteIndex) { + bytes32 lastValue = set._values[lastIndex]; + + // Move the last value to the index where the value to delete is + set._values[toDeleteIndex] = lastValue; + // Update the index for the moved value + set._indexes[lastValue] = valueIndex; // Replace lastValue's index to valueIndex + } + + // Delete the slot where the moved value was stored + set._values.pop(); + + // Delete the index for the deleted slot + delete set._indexes[value]; + + return true; + } else { + return false; + } +} + +/** + * @dev Returns true if the value is in the set. O(1). + */ +function _contains(Set storage set, bytes32 value) private view returns (bool) { + return set._indexes[value] != 0; +} + +/** + * @dev Returns the number of values on the set. O(1). + */ +function _length(Set storage set) private view returns (uint256) { + return set._values.length; +} + +/** + * @dev Returns the value stored at position \`index\` in the set. O(1). + * + * Note that there are no guarantees on the ordering of values inside the + * array, and it may change when more values are added or removed. + * + * Requirements: + * + * - \`index\` must be strictly less than {length}. + */ +function _at(Set storage set, uint256 index) private view returns (bytes32) { + return set._values[index]; +} + +/** + * @dev Return the entire set in an array + * + * WARNING: This operation will copy the entire storage to memory, which can be quite expensive. This is designed + * to mostly be used by view accessors that are queried without any gas fees. Developers should keep in mind that + * this function has an unbounded cost, and using it as part of a state-changing function may render the function + * uncallable if the set grows to a point where copying to memory consumes too much gas to fit in a block. + */ +function _values(Set storage set) private view returns (bytes32[] memory) { + return set._values; +} +`; + +const customSet = ({ name, type }) => `\ +// ${name} + +struct ${name} { + Set _inner; +} + +/** + * @dev Add a value to a set. O(1). + * + * Returns true if the value was added to the set, that is if it was not + * already present. + */ +function add(${name} storage set, ${type} value) internal returns (bool) { + return _add(set._inner, ${toBytes32(type, 'value')}); +} + +/** + * @dev Removes a value from a set. O(1). + * + * Returns true if the value was removed from the set, that is if it was + * present. + */ +function remove(${name} storage set, ${type} value) internal returns (bool) { + return _remove(set._inner, ${toBytes32(type, 'value')}); +} + +/** + * @dev Returns true if the value is in the set. O(1). + */ +function contains(${name} storage set, ${type} value) internal view returns (bool) { + return _contains(set._inner, ${toBytes32(type, 'value')}); +} + +/** + * @dev Returns the number of values in the set. O(1). + */ +function length(${name} storage set) internal view returns (uint256) { + return _length(set._inner); +} + +/** + * @dev Returns the value stored at position \`index\` in the set. O(1). + * + * Note that there are no guarantees on the ordering of values inside the + * array, and it may change when more values are added or removed. + * + * Requirements: + * + * - \`index\` must be strictly less than {length}. + */ +function at(${name} storage set, uint256 index) internal view returns (${type}) { + return ${fromBytes32(type, '_at(set._inner, index)')}; +} + +/** + * @dev Return the entire set in an array + * + * WARNING: This operation will copy the entire storage to memory, which can be quite expensive. This is designed + * to mostly be used by view accessors that are queried without any gas fees. Developers should keep in mind that + * this function has an unbounded cost, and using it as part of a state-changing function may render the function + * uncallable if the set grows to a point where copying to memory consumes too much gas to fit in a block. + */ +function values(${name} storage set) internal view returns (${type}[] memory) { + bytes32[] memory store = _values(set._inner); + ${type}[] memory result; + + /// @solidity memory-safe-assembly + assembly { + result := store + } + + return result; +} +`; + +// GENERATE +module.exports = format( + header.trimEnd(), + 'library EnumerableSet {', + [defaultSet(), TYPES.map(details => customSet(details).trimEnd()).join('\n\n')], + '}', +); diff --git a/lib/openzeppelin-contracts/scripts/generate/templates/SafeCast.js b/lib/openzeppelin-contracts/scripts/generate/templates/SafeCast.js new file mode 100644 index 0000000..3e2b148 --- /dev/null +++ b/lib/openzeppelin-contracts/scripts/generate/templates/SafeCast.js @@ -0,0 +1,163 @@ +const assert = require('assert'); +const format = require('../format-lines'); +const { range } = require('../../helpers'); + +const LENGTHS = range(8, 256, 8).reverse(); // 248 → 8 (in steps of 8) + +// Returns the version of OpenZeppelin Contracts in which a particular function was introduced. +// This is used in the docs for each function. +const version = (selector, length) => { + switch (selector) { + case 'toUint(uint)': { + switch (length) { + case 8: + case 16: + case 32: + case 64: + case 128: + return '2.5'; + case 96: + case 224: + return '4.2'; + default: + assert(LENGTHS.includes(length)); + return '4.7'; + } + } + case 'toInt(int)': { + switch (length) { + case 8: + case 16: + case 32: + case 64: + case 128: + return '3.1'; + default: + assert(LENGTHS.includes(length)); + return '4.7'; + } + } + case 'toUint(int)': { + switch (length) { + case 256: + return '3.0'; + default: + assert(false); + return; + } + } + case 'toInt(uint)': { + switch (length) { + case 256: + return '3.0'; + default: + assert(false); + return; + } + } + default: + assert(false); + } +}; + +const header = `\ +pragma solidity ^0.8.0; + +/** + * @dev Wrappers over Solidity's uintXX/intXX casting operators with added overflow + * checks. + * + * Downcasting from uint256/int256 in Solidity does not revert on overflow. This can + * easily result in undesired exploitation or bugs, since developers usually + * assume that overflows raise errors. \`SafeCast\` restores this intuition by + * reverting the transaction when such an operation overflows. + * + * Using this library instead of the unchecked operations eliminates an entire + * class of bugs, so it's recommended to use it always. + * + * Can be combined with {SafeMath} and {SignedSafeMath} to extend it to smaller types, by performing + * all math on \`uint256\` and \`int256\` and then downcasting. + */ +`; + +const toUintDownCast = length => `\ +/** + * @dev Returns the downcasted uint${length} from uint256, reverting on + * overflow (when the input is greater than largest uint${length}). + * + * Counterpart to Solidity's \`uint${length}\` operator. + * + * Requirements: + * + * - input must fit into ${length} bits + * + * _Available since v${version('toUint(uint)', length)}._ + */ +function toUint${length}(uint256 value) internal pure returns (uint${length}) { + require(value <= type(uint${length}).max, "SafeCast: value doesn't fit in ${length} bits"); + return uint${length}(value); +} +`; + +/* eslint-disable max-len */ +const toIntDownCast = length => `\ +/** + * @dev Returns the downcasted int${length} from int256, reverting on + * overflow (when the input is less than smallest int${length} or + * greater than largest int${length}). + * + * Counterpart to Solidity's \`int${length}\` operator. + * + * Requirements: + * + * - input must fit into ${length} bits + * + * _Available since v${version('toInt(int)', length)}._ + */ +function toInt${length}(int256 value) internal pure returns (int${length} downcasted) { + downcasted = int${length}(value); + require(downcasted == value, "SafeCast: value doesn't fit in ${length} bits"); +} +`; +/* eslint-enable max-len */ + +const toInt = length => `\ +/** + * @dev Converts an unsigned uint${length} into a signed int${length}. + * + * Requirements: + * + * - input must be less than or equal to maxInt${length}. + * + * _Available since v${version('toInt(uint)', length)}._ + */ +function toInt${length}(uint${length} value) internal pure returns (int${length}) { + // Note: Unsafe cast below is okay because \`type(int${length}).max\` is guaranteed to be positive + require(value <= uint${length}(type(int${length}).max), "SafeCast: value doesn't fit in an int${length}"); + return int${length}(value); +} +`; + +const toUint = length => `\ +/** + * @dev Converts a signed int${length} into an unsigned uint${length}. + * + * Requirements: + * + * - input must be greater than or equal to 0. + * + * _Available since v${version('toUint(int)', length)}._ + */ +function toUint${length}(int${length} value) internal pure returns (uint${length}) { + require(value >= 0, "SafeCast: value must be positive"); + return uint${length}(value); +} +`; + +// GENERATE +module.exports = format( + header.trimEnd(), + 'library SafeCast {', + [...LENGTHS.map(toUintDownCast), toUint(256), ...LENGTHS.map(toIntDownCast), toInt(256)], + '}', +); diff --git a/lib/openzeppelin-contracts/scripts/generate/templates/conversion.js b/lib/openzeppelin-contracts/scripts/generate/templates/conversion.js new file mode 100644 index 0000000..9221f7c --- /dev/null +++ b/lib/openzeppelin-contracts/scripts/generate/templates/conversion.js @@ -0,0 +1,30 @@ +function toBytes32(type, value) { + switch (type) { + case 'bytes32': + return value; + case 'uint256': + return `bytes32(${value})`; + case 'address': + return `bytes32(uint256(uint160(${value})))`; + default: + throw new Error(`Conversion from ${type} to bytes32 not supported`); + } +} + +function fromBytes32(type, value) { + switch (type) { + case 'bytes32': + return value; + case 'uint256': + return `uint256(${value})`; + case 'address': + return `address(uint160(uint256(${value})))`; + default: + throw new Error(`Conversion from bytes32 to ${type} not supported`); + } +} + +module.exports = { + toBytes32, + fromBytes32, +}; diff --git a/lib/openzeppelin-contracts/scripts/git-user-config.sh b/lib/openzeppelin-contracts/scripts/git-user-config.sh new file mode 100644 index 0000000..e7b81c3 --- /dev/null +++ b/lib/openzeppelin-contracts/scripts/git-user-config.sh @@ -0,0 +1,6 @@ +#!/usr/bin/env bash + +set -euo pipefail -x + +git config user.name 'github-actions' +git config user.email '41898282+github-actions[bot]@users.noreply.github.com' diff --git a/lib/openzeppelin-contracts/scripts/helpers.js b/lib/openzeppelin-contracts/scripts/helpers.js new file mode 100644 index 0000000..26d0a2b --- /dev/null +++ b/lib/openzeppelin-contracts/scripts/helpers.js @@ -0,0 +1,32 @@ +function chunk(array, size = 1) { + return Array.range(Math.ceil(array.length / size)).map(i => array.slice(i * size, i * size + size)); +} + +function range(start, stop = undefined, step = 1) { + if (!stop) { + stop = start; + start = 0; + } + return start < stop + ? Array(Math.ceil((stop - start) / step)) + .fill() + .map((_, i) => start + i * step) + : []; +} + +function unique(array, op = x => x) { + return array.filter((obj, i) => array.findIndex(entry => op(obj) === op(entry)) === i); +} + +function zip(...args) { + return Array(Math.max(...args.map(arg => arg.length))) + .fill(null) + .map((_, i) => args.map(arg => arg[i])); +} + +module.exports = { + chunk, + range, + unique, + zip, +}; diff --git a/lib/openzeppelin-contracts/scripts/migrate-imports.js b/lib/openzeppelin-contracts/scripts/migrate-imports.js new file mode 100755 index 0000000..f604419 --- /dev/null +++ b/lib/openzeppelin-contracts/scripts/migrate-imports.js @@ -0,0 +1,180 @@ +#!/usr/bin/env node + +const { promises: fs } = require('fs'); +const path = require('path'); + +const pathUpdates = { + // 'access/AccessControl.sol': undefined, + // 'access/Ownable.sol': undefined, + 'access/TimelockController.sol': 'governance/TimelockController.sol', + 'cryptography/ECDSA.sol': 'utils/cryptography/ECDSA.sol', + 'cryptography/MerkleProof.sol': 'utils/cryptography/MerkleProof.sol', + 'drafts/EIP712.sol': 'utils/cryptography/EIP712.sol', + 'drafts/ERC20Permit.sol': 'token/ERC20/extensions/ERC20Permit.sol', + 'drafts/IERC20Permit.sol': 'token/ERC20/extensions/IERC20Permit.sol', + 'GSN/Context.sol': 'utils/Context.sol', + // 'GSN/GSNRecipientERC20Fee.sol': undefined, + // 'GSN/GSNRecipientSignature.sol': undefined, + // 'GSN/GSNRecipient.sol': undefined, + // 'GSN/IRelayHub.sol': undefined, + // 'GSN/IRelayRecipient.sol': undefined, + 'introspection/ERC165Checker.sol': 'utils/introspection/ERC165Checker.sol', + 'introspection/ERC165.sol': 'utils/introspection/ERC165.sol', + 'introspection/ERC1820Implementer.sol': 'utils/introspection/ERC1820Implementer.sol', + 'introspection/IERC165.sol': 'utils/introspection/IERC165.sol', + 'introspection/IERC1820Implementer.sol': 'utils/introspection/IERC1820Implementer.sol', + 'introspection/IERC1820Registry.sol': 'utils/introspection/IERC1820Registry.sol', + 'math/Math.sol': 'utils/math/Math.sol', + 'math/SafeMath.sol': 'utils/math/SafeMath.sol', + 'math/SignedSafeMath.sol': 'utils/math/SignedSafeMath.sol', + 'payment/escrow/ConditionalEscrow.sol': 'utils/escrow/ConditionalEscrow.sol', + 'payment/escrow/Escrow.sol': 'utils/escrow/Escrow.sol', + 'payment/escrow/RefundEscrow.sol': 'utils/escrow/RefundEscrow.sol', + 'payment/PaymentSplitter.sol': 'finance/PaymentSplitter.sol', + 'utils/PaymentSplitter.sol': 'finance/PaymentSplitter.sol', + 'payment/PullPayment.sol': 'security/PullPayment.sol', + 'presets/ERC1155PresetMinterPauser.sol': 'token/ERC1155/presets/ERC1155PresetMinterPauser.sol', + 'presets/ERC20PresetFixedSupply.sol': 'token/ERC20/presets/ERC20PresetFixedSupply.sol', + 'presets/ERC20PresetMinterPauser.sol': 'token/ERC20/presets/ERC20PresetMinterPauser.sol', + 'presets/ERC721PresetMinterPauserAutoId.sol': 'token/ERC721/presets/ERC721PresetMinterPauserAutoId.sol', + 'presets/ERC777PresetFixedSupply.sol': 'token/ERC777/presets/ERC777PresetFixedSupply.sol', + 'proxy/BeaconProxy.sol': 'proxy/beacon/BeaconProxy.sol', + // 'proxy/Clones.sol': undefined, + 'proxy/IBeacon.sol': 'proxy/beacon/IBeacon.sol', + 'proxy/Initializable.sol': 'proxy/utils/Initializable.sol', + 'utils/Initializable.sol': 'proxy/utils/Initializable.sol', + 'proxy/ProxyAdmin.sol': 'proxy/transparent/ProxyAdmin.sol', + // 'proxy/Proxy.sol': undefined, + 'proxy/TransparentUpgradeableProxy.sol': 'proxy/transparent/TransparentUpgradeableProxy.sol', + 'proxy/UpgradeableBeacon.sol': 'proxy/beacon/UpgradeableBeacon.sol', + 'proxy/UpgradeableProxy.sol': 'proxy/ERC1967/ERC1967Proxy.sol', + 'token/ERC1155/ERC1155Burnable.sol': 'token/ERC1155/extensions/ERC1155Burnable.sol', + 'token/ERC1155/ERC1155Holder.sol': 'token/ERC1155/utils/ERC1155Holder.sol', + 'token/ERC1155/ERC1155Pausable.sol': 'token/ERC1155/extensions/ERC1155Pausable.sol', + 'token/ERC1155/ERC1155Receiver.sol': 'token/ERC1155/utils/ERC1155Receiver.sol', + // 'token/ERC1155/ERC1155.sol': undefined, + 'token/ERC1155/IERC1155MetadataURI.sol': 'token/ERC1155/extensions/IERC1155MetadataURI.sol', + // 'token/ERC1155/IERC1155Receiver.sol': undefined, + // 'token/ERC1155/IERC1155.sol': undefined, + 'token/ERC20/ERC20Burnable.sol': 'token/ERC20/extensions/ERC20Burnable.sol', + 'token/ERC20/ERC20Capped.sol': 'token/ERC20/extensions/ERC20Capped.sol', + 'token/ERC20/ERC20Pausable.sol': 'token/ERC20/extensions/ERC20Pausable.sol', + 'token/ERC20/ERC20Snapshot.sol': 'token/ERC20/extensions/ERC20Snapshot.sol', + // 'token/ERC20/ERC20.sol': undefined, + // 'token/ERC20/IERC20.sol': undefined, + 'token/ERC20/SafeERC20.sol': 'token/ERC20/utils/SafeERC20.sol', + 'token/ERC20/TokenTimelock.sol': 'token/ERC20/utils/TokenTimelock.sol', + 'token/ERC721/ERC721Burnable.sol': 'token/ERC721/extensions/ERC721Burnable.sol', + 'token/ERC721/ERC721Holder.sol': 'token/ERC721/utils/ERC721Holder.sol', + 'token/ERC721/ERC721Pausable.sol': 'token/ERC721/extensions/ERC721Pausable.sol', + // 'token/ERC721/ERC721.sol': undefined, + 'token/ERC721/IERC721Enumerable.sol': 'token/ERC721/extensions/IERC721Enumerable.sol', + 'token/ERC721/IERC721Metadata.sol': 'token/ERC721/extensions/IERC721Metadata.sol', + // 'token/ERC721/IERC721Receiver.sol': undefined, + // 'token/ERC721/IERC721.sol': undefined, + // 'token/ERC777/ERC777.sol': undefined, + // 'token/ERC777/IERC777Recipient.sol': undefined, + // 'token/ERC777/IERC777Sender.sol': undefined, + // 'token/ERC777/IERC777.sol': undefined, + // 'utils/Address.sol': undefined, + // 'utils/Arrays.sol': undefined, + // 'utils/Context.sol': undefined, + // 'utils/Counters.sol': undefined, + // 'utils/Create2.sol': undefined, + 'utils/EnumerableMap.sol': 'utils/structs/EnumerableMap.sol', + 'utils/EnumerableSet.sol': 'utils/structs/EnumerableSet.sol', + 'utils/Pausable.sol': 'security/Pausable.sol', + 'utils/ReentrancyGuard.sol': 'security/ReentrancyGuard.sol', + 'utils/SafeCast.sol': 'utils/math/SafeCast.sol', + // 'utils/Strings.sol': undefined, + 'utils/cryptography/draft-EIP712.sol': 'utils/cryptography/EIP712.sol', + 'token/ERC20/extensions/draft-ERC20Permit.sol': 'token/ERC20/extensions/ERC20Permit.sol', + 'token/ERC20/extensions/draft-IERC20Permit.sol': 'token/ERC20/extensions/IERC20Permit.sol', +}; + +async function main(paths = ['contracts']) { + const files = await listFilesRecursively(paths, /\.sol$/); + + const updatedFiles = []; + for (const file of files) { + if (await updateFile(file, updateImportPaths)) { + updatedFiles.push(file); + } + } + + if (updatedFiles.length > 0) { + console.log(`${updatedFiles.length} file(s) were updated`); + for (const c of updatedFiles) { + console.log('-', c); + } + } else { + console.log('No files were updated'); + } +} + +async function listFilesRecursively(paths, filter) { + const queue = paths; + const files = []; + + while (queue.length > 0) { + const top = queue.shift(); + const stat = await fs.stat(top); + if (stat.isFile()) { + if (top.match(filter)) { + files.push(top); + } + } else if (stat.isDirectory()) { + for (const name of await fs.readdir(top)) { + queue.push(path.join(top, name)); + } + } + } + + return files; +} + +async function updateFile(file, update) { + const content = await fs.readFile(file, 'utf8'); + const updatedContent = update(content); + if (updatedContent !== content) { + await fs.writeFile(file, updatedContent); + return true; + } else { + return false; + } +} + +function updateImportPaths(source) { + for (const [oldPath, newPath] of Object.entries(pathUpdates)) { + source = source.replace( + path.join('@openzeppelin/contracts', oldPath), + path.join('@openzeppelin/contracts', newPath), + ); + source = source.replace( + path.join('@openzeppelin/contracts-upgradeable', getUpgradeablePath(oldPath)), + path.join('@openzeppelin/contracts-upgradeable', getUpgradeablePath(newPath)), + ); + } + + return source; +} + +function getUpgradeablePath(file) { + const { dir, name, ext } = path.parse(file); + const upgradeableName = name + 'Upgradeable'; + return path.format({ dir, ext, name: upgradeableName }); +} + +module.exports = { + pathUpdates, + updateImportPaths, + getUpgradeablePath, +}; + +if (require.main === module) { + const args = process.argv.length > 2 ? process.argv.slice(2) : undefined; + main(args).catch(e => { + console.error(e); + process.exit(1); + }); +} diff --git a/lib/openzeppelin-contracts/scripts/prepack.sh b/lib/openzeppelin-contracts/scripts/prepack.sh new file mode 100755 index 0000000..6f1bd4c --- /dev/null +++ b/lib/openzeppelin-contracts/scripts/prepack.sh @@ -0,0 +1,12 @@ +#!/usr/bin/env bash + +set -euo pipefail +shopt -s globstar + +# cross platform `mkdir -p` +node -e 'fs.mkdirSync("build/contracts", { recursive: true })' + +cp artifacts/contracts/**/*.json build/contracts +rm build/contracts/*.dbg.json + +node scripts/remove-ignored-artifacts.js diff --git a/lib/openzeppelin-contracts/scripts/prepare-contracts-package.sh b/lib/openzeppelin-contracts/scripts/prepare-contracts-package.sh new file mode 100755 index 0000000..3f62fd4 --- /dev/null +++ b/lib/openzeppelin-contracts/scripts/prepare-contracts-package.sh @@ -0,0 +1,15 @@ +#!/usr/bin/env bash + +# cd to the root of the repo +cd "$(git rev-parse --show-toplevel)" + +# avoids re-compilation during publishing of both packages +if [[ ! -v ALREADY_COMPILED ]]; then + npm run clean + npm run prepare + npm run prepack +fi + +cp README.md contracts/ +mkdir contracts/build contracts/build/contracts +cp -r build/contracts/*.json contracts/build/contracts diff --git a/lib/openzeppelin-contracts/scripts/prepare-docs.sh b/lib/openzeppelin-contracts/scripts/prepare-docs.sh new file mode 100755 index 0000000..4fc0c95 --- /dev/null +++ b/lib/openzeppelin-contracts/scripts/prepare-docs.sh @@ -0,0 +1,15 @@ +#!/usr/bin/env bash + +set -euo pipefail + +OUTDIR="$(node -p 'require("./docs/config.js").outputDir')" + +if [ ! -d node_modules ]; then + npm ci +fi + +rm -rf "$OUTDIR" + +hardhat docgen + +node scripts/gen-nav.js "$OUTDIR" > "$OUTDIR/../nav.adoc" diff --git a/lib/openzeppelin-contracts/scripts/prepare.sh b/lib/openzeppelin-contracts/scripts/prepare.sh new file mode 100755 index 0000000..7014a70 --- /dev/null +++ b/lib/openzeppelin-contracts/scripts/prepare.sh @@ -0,0 +1,10 @@ +#!/usr/bin/env bash + +set -euo pipefail + +if [ "${SKIP_COMPILE:-}" == true ]; then + exit +fi + +npm run clean +env COMPILE_MODE=production npm run compile diff --git a/lib/openzeppelin-contracts/scripts/release/format-changelog.js b/lib/openzeppelin-contracts/scripts/release/format-changelog.js new file mode 100755 index 0000000..b8bcc8c --- /dev/null +++ b/lib/openzeppelin-contracts/scripts/release/format-changelog.js @@ -0,0 +1,33 @@ +#!/usr/bin/env node + +// Adjusts the format of the changelog that changesets generates. +// This is run automatically when npm version is run. + +const fs = require('fs'); +const changelog = fs.readFileSync('CHANGELOG.md', 'utf8'); + +// Groups: +// - 1: Pull Request Number and URL +// - 2: Changeset entry +const RELEASE_LINE_REGEX = /^- (\[#.*?\]\(.*?\))?.*?! - (.*)$/gm; + +// Captures vX.Y.Z or vX.Y.Z-rc.W +const VERSION_TITLE_REGEX = /^## (\d+\.\d+\.\d+(-rc\.\d+)?)$/gm; + +const isPrerelease = process.env.PRERELEASE === 'true'; + +const formatted = changelog + // Remove titles + .replace(/^### Major Changes\n\n/gm, '') + .replace(/^### Minor Changes\n\n/gm, '') + .replace(/^### Patch Changes\n\n/gm, '') + // Remove extra whitespace between items + .replace(/^(- \[.*\n)\n(?=-)/gm, '$1') + // Format each release line + .replace(RELEASE_LINE_REGEX, (_, pr, entry) => (pr ? `- ${entry} (${pr})` : `- ${entry}`)) + // Add date to new version + .replace(VERSION_TITLE_REGEX, `\n## $1 (${new Date().toISOString().split('T')[0]})`) + // Conditionally allow vX.Y.Z.rc-.W sections only in prerelease + .replace(/^## \d\.\d\.\d-rc\S+[^]+?(?=^#)/gm, section => (isPrerelease ? section : '')); + +fs.writeFileSync('CHANGELOG.md', formatted); diff --git a/lib/openzeppelin-contracts/scripts/release/synchronize-versions.js b/lib/openzeppelin-contracts/scripts/release/synchronize-versions.js new file mode 100755 index 0000000..15aa259 --- /dev/null +++ b/lib/openzeppelin-contracts/scripts/release/synchronize-versions.js @@ -0,0 +1,15 @@ +#!/usr/bin/env node + +// Synchronizes the version in contracts/package.json with the one in package.json. +// This is run automatically when npm version is run. + +const fs = require('fs'); + +setVersion('package.json', 'contracts/package.json'); + +function setVersion(from, to) { + const fromJson = JSON.parse(fs.readFileSync(from)); + const toJson = JSON.parse(fs.readFileSync(to)); + toJson.version = fromJson.version; + fs.writeFileSync(to, JSON.stringify(toJson, null, 2) + '\n'); +} diff --git a/lib/openzeppelin-contracts/scripts/release/update-comment.js b/lib/openzeppelin-contracts/scripts/release/update-comment.js new file mode 100755 index 0000000..eb9f937 --- /dev/null +++ b/lib/openzeppelin-contracts/scripts/release/update-comment.js @@ -0,0 +1,34 @@ +#!/usr/bin/env node +const fs = require('fs'); +const proc = require('child_process'); +const semver = require('semver'); +const run = (cmd, ...args) => proc.execFileSync(cmd, args, { encoding: 'utf8' }).trim(); + +const gitStatus = run('git', 'status', '--porcelain', '-uno', 'contracts/**/*.sol'); +if (gitStatus.length > 0) { + console.error('Contracts directory is not clean'); + process.exit(1); +} + +const { version } = require('../../package.json'); + +// Get latest tag according to semver. +const [tag] = run('git', 'tag') + .split(/\r?\n/) + .filter(semver.coerce) // check version can be processed + .filter(v => semver.lt(semver.coerce(v), version)) // only consider older tags, ignore current prereleases + .sort(semver.rcompare); + +// Ordering tag → HEAD is important here. +const files = run('git', 'diff', tag, 'HEAD', '--name-only', 'contracts/**/*.sol') + .split(/\r?\n/) + .filter(file => file && !file.match(/mock/i) && fs.existsSync(file)); + +for (const file of files) { + const current = fs.readFileSync(file, 'utf8'); + const updated = current.replace( + /(\/\/ SPDX-License-Identifier:.*)$(\n\/\/ OpenZeppelin Contracts .*$)?/m, + `$1\n// OpenZeppelin Contracts (last updated v${version}) (${file.replace('contracts/', '')})`, + ); + fs.writeFileSync(file, updated); +} diff --git a/lib/openzeppelin-contracts/scripts/release/version.sh b/lib/openzeppelin-contracts/scripts/release/version.sh new file mode 100755 index 0000000..7b0ddea --- /dev/null +++ b/lib/openzeppelin-contracts/scripts/release/version.sh @@ -0,0 +1,11 @@ +#!/usr/bin/env bash + +set -euo pipefail + +changeset version + +scripts/release/format-changelog.js +scripts/release/synchronize-versions.js +scripts/release/update-comment.js + +oz-docs update-version diff --git a/lib/openzeppelin-contracts/scripts/release/workflow/exit-prerelease.sh b/lib/openzeppelin-contracts/scripts/release/workflow/exit-prerelease.sh new file mode 100644 index 0000000..bcf9b9a --- /dev/null +++ b/lib/openzeppelin-contracts/scripts/release/workflow/exit-prerelease.sh @@ -0,0 +1,8 @@ +#!/usr/bin/env bash + +set -euo pipefail + +npx changeset pre exit rc +git add . +git commit -m "Exit release candidate" +git push origin diff --git a/lib/openzeppelin-contracts/scripts/release/workflow/github-release.js b/lib/openzeppelin-contracts/scripts/release/workflow/github-release.js new file mode 100644 index 0000000..92a47d9 --- /dev/null +++ b/lib/openzeppelin-contracts/scripts/release/workflow/github-release.js @@ -0,0 +1,47 @@ +const { readFileSync } = require('fs'); +const { join } = require('path'); +const { version } = require(join(__dirname, '../../../package.json')); + +module.exports = async ({ github, context }) => { + const changelog = readFileSync('CHANGELOG.md', 'utf8'); + + await github.rest.repos.createRelease({ + owner: context.repo.owner, + repo: context.repo.repo, + tag_name: `v${version}`, + body: extractSection(changelog, version), + prerelease: process.env.PRERELEASE === 'true', + }); +}; + +// From https://github.com/frangio/extract-changelog/blob/master/src/utils/word-regexp.ts +function makeWordRegExp(word) { + const start = word.length > 0 && /\b/.test(word[0]) ? '\\b' : ''; + const end = word.length > 0 && /\b/.test(word[word.length - 1]) ? '\\b' : ''; + return new RegExp(start + [...word].map(c => (/[a-z0-9]/i.test(c) ? c : '\\' + c)).join('') + end); +} + +// From https://github.com/frangio/extract-changelog/blob/master/src/core.ts +function extractSection(document, wantedHeading) { + // ATX Headings as defined in GitHub Flavored Markdown (https://github.github.com/gfm/#atx-headings) + const heading = /^ {0,3}(?#{1,6})(?: [ \t\v\f]*(?.*?)[ \t\v\f]*)?(?:[\n\r]+|$)/gm; + + const wantedHeadingRe = makeWordRegExp(wantedHeading); + + let start, end; + + for (const m of document.matchAll(heading)) { + if (!start) { + if (m.groups.text.search(wantedHeadingRe) === 0) { + start = m; + } + } else if (m.groups.lead.length <= start.groups.lead.length) { + end = m; + break; + } + } + + if (start) { + return document.slice(start.index + start[0].length, end?.index); + } +} diff --git a/lib/openzeppelin-contracts/scripts/release/workflow/pack.sh b/lib/openzeppelin-contracts/scripts/release/workflow/pack.sh new file mode 100644 index 0000000..798417d --- /dev/null +++ b/lib/openzeppelin-contracts/scripts/release/workflow/pack.sh @@ -0,0 +1,25 @@ +#!/usr/bin/env bash + +set -euo pipefail + +dist_tag() { + PACKAGE_JSON_NAME="$(jq -r .name ./package.json)" + LATEST_NPM_VERSION="$(npm info "$PACKAGE_JSON_NAME" version)" + PACKAGE_JSON_VERSION="$(jq -r .version ./package.json)" + + if [ "$PRERELEASE" = "true" ]; then + echo "next" + elif npx semver -r ">$LATEST_NPM_VERSION" "$PACKAGE_JSON_VERSION" > /dev/null; then + echo "latest" + else + # This is a patch for an older version + # npm can't publish without a tag + echo "tmp" + fi +} + +cd contracts +TARBALL="$(npm pack | tee /dev/stderr | tail -1)" +echo "tarball=$(pwd)/$TARBALL" >> $GITHUB_OUTPUT +echo "tag=$(dist_tag)" >> $GITHUB_OUTPUT +cd .. diff --git a/lib/openzeppelin-contracts/scripts/release/workflow/prepare-release-merge.sh b/lib/openzeppelin-contracts/scripts/release/workflow/prepare-release-merge.sh new file mode 100644 index 0000000..8be9692 --- /dev/null +++ b/lib/openzeppelin-contracts/scripts/release/workflow/prepare-release-merge.sh @@ -0,0 +1,24 @@ +#!/usr/bin/env bash + +set -euo pipefail + +# Define merge branch name +MERGE_BRANCH=merge/$GITHUB_REF_NAME + +# Create the branch and force to start from ref +git checkout -B "$MERGE_BRANCH" "$GITHUB_REF_NAME" + +# Get deleted changesets in this branch that might conflict with master +readarray -t DELETED_CHANGESETS < <(git diff origin/master --name-only -- '.changeset/*.md') + +# Merge master, which will take those files cherry-picked. Auto-resolve conflicts favoring master. +git merge origin/master -m "Merge master to $GITHUB_REF_NAME" -X theirs + +# Remove the originally deleted changesets to correctly sync with master +rm -f "${DELETED_CHANGESETS[@]}" + +git add .changeset/ + +# Allow empty here since there may be no changes if `rm -f` failed for all changesets +git commit --allow-empty -m "Sync changesets with master" +git push -f origin "$MERGE_BRANCH" diff --git a/lib/openzeppelin-contracts/scripts/release/workflow/publish.sh b/lib/openzeppelin-contracts/scripts/release/workflow/publish.sh new file mode 100644 index 0000000..f9e2802 --- /dev/null +++ b/lib/openzeppelin-contracts/scripts/release/workflow/publish.sh @@ -0,0 +1,20 @@ +#!/usr/bin/env bash + +set -euo pipefail + +# Intentionally escape $ to avoid interpolation and writing the token to disk +echo "//registry.npmjs.org/:_authToken=\${NPM_TOKEN}" > .npmrc + +# Actual publish +npm publish "$TARBALL" --tag "$TAG" + +delete_tag() { + PACKAGE_JSON_NAME="$(tar xfO "$TARBALL" package/package.json | jq -r .name)" + npm dist-tag rm "$PACKAGE_JSON_NAME" "$1" +} + +if [ "$TAG" = tmp ]; then + delete_tag "$TAG" +elif ["$TAG" = latest ]; then + delete_tag next +fi diff --git a/lib/openzeppelin-contracts/scripts/release/workflow/rerun.js b/lib/openzeppelin-contracts/scripts/release/workflow/rerun.js new file mode 100644 index 0000000..f48ce6e --- /dev/null +++ b/lib/openzeppelin-contracts/scripts/release/workflow/rerun.js @@ -0,0 +1,7 @@ +module.exports = ({ github, context }) => + github.rest.actions.createWorkflowDispatch({ + owner: context.repo.owner, + repo: context.repo.repo, + workflow_id: 'release-cycle.yml', + ref: process.env.REF || process.env.GITHUB_REF_NAME, + }); diff --git a/lib/openzeppelin-contracts/scripts/release/workflow/set-changesets-pr-title.js b/lib/openzeppelin-contracts/scripts/release/workflow/set-changesets-pr-title.js new file mode 100644 index 0000000..59b03b2 --- /dev/null +++ b/lib/openzeppelin-contracts/scripts/release/workflow/set-changesets-pr-title.js @@ -0,0 +1,17 @@ +const { coerce, inc, rsort } = require('semver'); +const { join } = require('path'); +const { version } = require(join(__dirname, '../../../package.json')); + +module.exports = async ({ core }) => { + // Variables not in the context + const refName = process.env.GITHUB_REF_NAME; + + // Compare package.json version's next patch vs. first version patch + // A recently opened branch will give the next patch for the previous minor + // So, we get the max against the patch 0 of the release branch's version + const branchPatch0 = coerce(refName.replace('release-v', '')).version; + const packageJsonNextPatch = inc(version, 'patch'); + const [nextVersion] = rsort([branchPatch0, packageJsonNextPatch], false); + + core.exportVariable('TITLE', `Release v${nextVersion}`); +}; diff --git a/lib/openzeppelin-contracts/scripts/release/workflow/start.sh b/lib/openzeppelin-contracts/scripts/release/workflow/start.sh new file mode 100644 index 0000000..6e5d78b --- /dev/null +++ b/lib/openzeppelin-contracts/scripts/release/workflow/start.sh @@ -0,0 +1,32 @@ +#!/usr/bin/env bash + +set -euo pipefail + +# Set changeset status location +# This is needed because `changeset status --output` only works with relative routes +CHANGESETS_STATUS_JSON="$(realpath --relative-to=. "$RUNNER_TEMP/status.json")" + +# Save changeset status to temp file +npx changeset status --output="$CHANGESETS_STATUS_JSON" + +# Defensive assertion. SHOULD NOT BE REACHED +if [ "$(jq '.releases | length' "$CHANGESETS_STATUS_JSON")" != 1 ]; then + echo "::error file=$CHANGESETS_STATUS_JSON::The status doesn't contain only 1 release" + exit 1; +fi; + +# Create branch +BRANCH_SUFFIX="$(jq -r '.releases[0].newVersion | gsub("\\.\\d+$"; "")' $CHANGESETS_STATUS_JSON)" +RELEASE_BRANCH="release-v$BRANCH_SUFFIX" +git checkout -b "$RELEASE_BRANCH" + +# Output branch +echo "branch=$RELEASE_BRANCH" >> $GITHUB_OUTPUT + +# Enter in prerelease state +npx changeset pre enter rc +git add . +git commit -m "Start release candidate" + +# Push branch +git push origin "$RELEASE_BRANCH" diff --git a/lib/openzeppelin-contracts/scripts/release/workflow/state.js b/lib/openzeppelin-contracts/scripts/release/workflow/state.js new file mode 100644 index 0000000..4d905e2 --- /dev/null +++ b/lib/openzeppelin-contracts/scripts/release/workflow/state.js @@ -0,0 +1,104 @@ +const { readPreState } = require('@changesets/pre'); +const { default: readChangesets } = require('@changesets/read'); +const { join } = require('path'); +const { version } = require(join(__dirname, '../../../package.json')); + +module.exports = async ({ github, context, core }) => { + const state = await getState({ github, context, core }); + + function setOutput(key, value) { + core.info(`State ${key} = ${value}`); + core.setOutput(key, value); + } + + // Jobs to trigger + setOutput('start', shouldRunStart(state)); + setOutput('promote', shouldRunPromote(state)); + setOutput('changesets', shouldRunChangesets(state)); + setOutput('publish', shouldRunPublish(state)); + setOutput('merge', shouldRunMerge(state)); + + // Global Variables + setOutput('is_prerelease', state.prerelease); +}; + +function shouldRunStart({ isMaster, isWorkflowDispatch, botRun }) { + return isMaster && isWorkflowDispatch && !botRun; +} + +function shouldRunPromote({ isReleaseBranch, isWorkflowDispatch, botRun }) { + return isReleaseBranch && isWorkflowDispatch && !botRun; +} + +function shouldRunChangesets({ isReleaseBranch, isPush, isWorkflowDispatch, botRun }) { + return (isReleaseBranch && isPush) || (isReleaseBranch && isWorkflowDispatch && botRun); +} + +function shouldRunPublish({ isReleaseBranch, isPush, hasPendingChangesets }) { + return isReleaseBranch && isPush && !hasPendingChangesets; +} + +function shouldRunMerge({ + isReleaseBranch, + isPush, + prerelease, + isCurrentFinalVersion, + hasPendingChangesets, + prBackExists, +}) { + return isReleaseBranch && isPush && !prerelease && isCurrentFinalVersion && !hasPendingChangesets && prBackExists; +} + +async function getState({ github, context, core }) { + // Variables not in the context + const refName = process.env.GITHUB_REF_NAME; + const botRun = process.env.TRIGGERING_ACTOR === 'github-actions[bot]'; + + const { changesets, preState } = await readChangesetState(); + + // Static vars + const state = { + refName, + hasPendingChangesets: changesets.length > 0, + prerelease: preState?.mode === 'pre', + isMaster: refName === 'master', + isReleaseBranch: refName.startsWith('release-v'), + isWorkflowDispatch: context.eventName === 'workflow_dispatch', + isPush: context.eventName === 'push', + isCurrentFinalVersion: !version.includes('-rc.'), + botRun, + }; + + // Async vars + const { data: prs } = await github.rest.pulls.list({ + owner: context.repo.owner, + repo: context.repo.repo, + head: `${context.repo.owner}:merge/${state.refName}`, + base: 'master', + state: 'open', + }); + + state.prBackExists = prs.length === 0; + + // Log every state value in debug mode + if (core.isDebug()) for (const [key, value] of Object.entries(state)) core.debug(`${key}: ${value}`); + + return state; +} + +// From https://github.com/changesets/action/blob/v1.4.1/src/readChangesetState.ts +async function readChangesetState(cwd = process.cwd()) { + const preState = await readPreState(cwd); + const isInPreMode = preState !== undefined && preState.mode === 'pre'; + + let changesets = await readChangesets(cwd); + + if (isInPreMode) { + changesets = changesets.filter(x => !preState.changesets.includes(x.id)); + } + + return { + preState: isInPreMode ? preState : undefined, + changesets, + }; +} diff --git a/lib/openzeppelin-contracts/scripts/remove-ignored-artifacts.js b/lib/openzeppelin-contracts/scripts/remove-ignored-artifacts.js new file mode 100644 index 0000000..f3e45b8 --- /dev/null +++ b/lib/openzeppelin-contracts/scripts/remove-ignored-artifacts.js @@ -0,0 +1,45 @@ +#!/usr/bin/env node + +// This script removes the build artifacts of ignored contracts. + +const fs = require('fs'); +const path = require('path'); +const match = require('micromatch'); + +function readJSON(path) { + return JSON.parse(fs.readFileSync(path)); +} + +const pkgFiles = readJSON('package.json').files; + +// Get only negated patterns. +const ignorePatterns = pkgFiles + .filter(pat => pat.startsWith('!')) + // Remove the negation part. Makes micromatch usage more intuitive. + .map(pat => pat.slice(1)); + +const ignorePatternsSubtrees = ignorePatterns + // Add **/* to ignore all files contained in the directories. + .concat(ignorePatterns.map(pat => path.join(pat, '**/*'))) + .map(p => p.replace(/^\//, '')); + +const artifactsDir = 'build/contracts'; +const buildinfo = 'artifacts/build-info'; +const filenames = fs.readdirSync(buildinfo); + +let n = 0; + +for (const filename of filenames) { + const solcOutput = readJSON(path.join(buildinfo, filename)).output; + for (const sourcePath in solcOutput.contracts) { + const ignore = match.any(sourcePath, ignorePatternsSubtrees); + if (ignore) { + for (const contract in solcOutput.contracts[sourcePath]) { + fs.unlinkSync(path.join(artifactsDir, contract + '.json')); + n += 1; + } + } + } +} + +console.error(`Removed ${n} mock artifacts`); diff --git a/lib/openzeppelin-contracts/scripts/update-docs-branch.js b/lib/openzeppelin-contracts/scripts/update-docs-branch.js new file mode 100644 index 0000000..4e94ba6 --- /dev/null +++ b/lib/openzeppelin-contracts/scripts/update-docs-branch.js @@ -0,0 +1,63 @@ +const proc = require('child_process'); +const read = cmd => proc.execSync(cmd, { encoding: 'utf8' }).trim(); +const run = cmd => { + proc.execSync(cmd, { stdio: 'inherit' }); +}; +const tryRead = cmd => { + try { + return read(cmd); + } catch (e) { + return undefined; + } +}; + +const releaseBranchRegex = /^release-v(?(?\d+)\.(?\d+)(?:\.(?\d+))?)$/; + +const currentBranch = read('git rev-parse --abbrev-ref HEAD'); +const match = currentBranch.match(releaseBranchRegex); + +if (!match) { + console.error('Not currently on a release branch'); + process.exit(1); +} + +if (/-.*$/.test(require('../package.json').version)) { + console.error('Refusing to update docs: prerelease detected'); + process.exit(0); +} + +const current = match.groups; +const docsBranch = `docs-v${current.major}.x`; + +// Fetch remotes and find the docs branch if it exists +run('git fetch --all --no-tags'); +const matchingDocsBranches = tryRead(`git rev-parse --glob='*/${docsBranch}'`); + +if (!matchingDocsBranches) { + // Create the branch + run(`git checkout --orphan ${docsBranch}`); +} else { + const [publishedRef, ...others] = new Set(matchingDocsBranches.split('\n')); + if (others.length > 0) { + console.error( + `Found conflicting ${docsBranch} branches.\n` + + 'Either local branch is outdated or there are multiple matching remote branches.', + ); + process.exit(1); + } + const publishedVersion = JSON.parse(read(`git show ${publishedRef}:package.json`)).version; + const publishedMinor = publishedVersion.match(/\d+\.(?\d+)\.\d+/).groups.minor; + if (current.minor < publishedMinor) { + console.error('Refusing to update docs: newer version is published'); + process.exit(0); + } + + run('git checkout --quiet --detach'); + run(`git reset --soft ${publishedRef}`); + run(`git checkout ${docsBranch}`); +} + +run('npm run prepare-docs'); +run('git add -f docs'); // --force needed because generated docs files are gitignored +run('git commit -m "Update docs"'); +run(`git checkout ${currentBranch}`); diff --git a/lib/openzeppelin-contracts/slither.config.json b/lib/openzeppelin-contracts/slither.config.json new file mode 100644 index 0000000..2b61879 --- /dev/null +++ b/lib/openzeppelin-contracts/slither.config.json @@ -0,0 +1,5 @@ +{ + "detectors_to_run": "reentrancy-eth,reentrancy-no-eth,reentrancy-unlimited-gas", + "filter_paths": "contracts/mocks", + "compile_force_framework": "hardhat" +} \ No newline at end of file diff --git a/lib/openzeppelin-contracts/test/TESTING.md b/lib/openzeppelin-contracts/test/TESTING.md new file mode 100644 index 0000000..a5ee932 --- /dev/null +++ b/lib/openzeppelin-contracts/test/TESTING.md @@ -0,0 +1,3 @@ +## Testing + +Unit test are critical to OpenZeppelin Contracts. They help ensure code quality and mitigate against security vulnerabilities. The directory structure within the `/test` directory corresponds to the `/contracts` directory. diff --git a/lib/openzeppelin-contracts/test/access/AccessControl.behavior.js b/lib/openzeppelin-contracts/test/access/AccessControl.behavior.js new file mode 100644 index 0000000..a935609 --- /dev/null +++ b/lib/openzeppelin-contracts/test/access/AccessControl.behavior.js @@ -0,0 +1,217 @@ +const { expectEvent, expectRevert } = require('@openzeppelin/test-helpers'); +const { expect } = require('chai'); + +const { shouldSupportInterfaces } = require('../utils/introspection/SupportsInterface.behavior'); + +const DEFAULT_ADMIN_ROLE = '0x0000000000000000000000000000000000000000000000000000000000000000'; +const ROLE = web3.utils.soliditySha3('ROLE'); +const OTHER_ROLE = web3.utils.soliditySha3('OTHER_ROLE'); + +function shouldBehaveLikeAccessControl(errorPrefix, admin, authorized, other, otherAdmin) { + shouldSupportInterfaces(['AccessControl']); + + describe('default admin', function () { + it('deployer has default admin role', async function () { + expect(await this.accessControl.hasRole(DEFAULT_ADMIN_ROLE, admin)).to.equal(true); + }); + + it("other roles's admin is the default admin role", async function () { + expect(await this.accessControl.getRoleAdmin(ROLE)).to.equal(DEFAULT_ADMIN_ROLE); + }); + + it("default admin role's admin is itself", async function () { + expect(await this.accessControl.getRoleAdmin(DEFAULT_ADMIN_ROLE)).to.equal(DEFAULT_ADMIN_ROLE); + }); + }); + + describe('granting', function () { + beforeEach(async function () { + await this.accessControl.grantRole(ROLE, authorized, { from: admin }); + }); + + it('non-admin cannot grant role to other accounts', async function () { + await expectRevert( + this.accessControl.grantRole(ROLE, authorized, { from: other }), + `${errorPrefix}: account ${other.toLowerCase()} is missing role ${DEFAULT_ADMIN_ROLE}`, + ); + }); + + it('accounts can be granted a role multiple times', async function () { + await this.accessControl.grantRole(ROLE, authorized, { from: admin }); + const receipt = await this.accessControl.grantRole(ROLE, authorized, { from: admin }); + expectEvent.notEmitted(receipt, 'RoleGranted'); + }); + }); + + describe('revoking', function () { + it('roles that are not had can be revoked', async function () { + expect(await this.accessControl.hasRole(ROLE, authorized)).to.equal(false); + + const receipt = await this.accessControl.revokeRole(ROLE, authorized, { from: admin }); + expectEvent.notEmitted(receipt, 'RoleRevoked'); + }); + + context('with granted role', function () { + beforeEach(async function () { + await this.accessControl.grantRole(ROLE, authorized, { from: admin }); + }); + + it('admin can revoke role', async function () { + const receipt = await this.accessControl.revokeRole(ROLE, authorized, { from: admin }); + expectEvent(receipt, 'RoleRevoked', { account: authorized, role: ROLE, sender: admin }); + + expect(await this.accessControl.hasRole(ROLE, authorized)).to.equal(false); + }); + + it('non-admin cannot revoke role', async function () { + await expectRevert( + this.accessControl.revokeRole(ROLE, authorized, { from: other }), + `${errorPrefix}: account ${other.toLowerCase()} is missing role ${DEFAULT_ADMIN_ROLE}`, + ); + }); + + it('a role can be revoked multiple times', async function () { + await this.accessControl.revokeRole(ROLE, authorized, { from: admin }); + + const receipt = await this.accessControl.revokeRole(ROLE, authorized, { from: admin }); + expectEvent.notEmitted(receipt, 'RoleRevoked'); + }); + }); + }); + + describe('renouncing', function () { + it('roles that are not had can be renounced', async function () { + const receipt = await this.accessControl.renounceRole(ROLE, authorized, { from: authorized }); + expectEvent.notEmitted(receipt, 'RoleRevoked'); + }); + + context('with granted role', function () { + beforeEach(async function () { + await this.accessControl.grantRole(ROLE, authorized, { from: admin }); + }); + + it('bearer can renounce role', async function () { + const receipt = await this.accessControl.renounceRole(ROLE, authorized, { from: authorized }); + expectEvent(receipt, 'RoleRevoked', { account: authorized, role: ROLE, sender: authorized }); + + expect(await this.accessControl.hasRole(ROLE, authorized)).to.equal(false); + }); + + it('only the sender can renounce their roles', async function () { + await expectRevert( + this.accessControl.renounceRole(ROLE, authorized, { from: admin }), + `${errorPrefix}: can only renounce roles for self`, + ); + }); + + it('a role can be renounced multiple times', async function () { + await this.accessControl.renounceRole(ROLE, authorized, { from: authorized }); + + const receipt = await this.accessControl.renounceRole(ROLE, authorized, { from: authorized }); + expectEvent.notEmitted(receipt, 'RoleRevoked'); + }); + }); + }); + + describe('setting role admin', function () { + beforeEach(async function () { + const receipt = await this.accessControl.$_setRoleAdmin(ROLE, OTHER_ROLE); + expectEvent(receipt, 'RoleAdminChanged', { + role: ROLE, + previousAdminRole: DEFAULT_ADMIN_ROLE, + newAdminRole: OTHER_ROLE, + }); + + await this.accessControl.grantRole(OTHER_ROLE, otherAdmin, { from: admin }); + }); + + it("a role's admin role can be changed", async function () { + expect(await this.accessControl.getRoleAdmin(ROLE)).to.equal(OTHER_ROLE); + }); + + it('the new admin can grant roles', async function () { + const receipt = await this.accessControl.grantRole(ROLE, authorized, { from: otherAdmin }); + expectEvent(receipt, 'RoleGranted', { account: authorized, role: ROLE, sender: otherAdmin }); + }); + + it('the new admin can revoke roles', async function () { + await this.accessControl.grantRole(ROLE, authorized, { from: otherAdmin }); + const receipt = await this.accessControl.revokeRole(ROLE, authorized, { from: otherAdmin }); + expectEvent(receipt, 'RoleRevoked', { account: authorized, role: ROLE, sender: otherAdmin }); + }); + + it("a role's previous admins no longer grant roles", async function () { + await expectRevert( + this.accessControl.grantRole(ROLE, authorized, { from: admin }), + `${errorPrefix}: account ${admin.toLowerCase()} is missing role ${OTHER_ROLE}`, + ); + }); + + it("a role's previous admins no longer revoke roles", async function () { + await expectRevert( + this.accessControl.revokeRole(ROLE, authorized, { from: admin }), + `${errorPrefix}: account ${admin.toLowerCase()} is missing role ${OTHER_ROLE}`, + ); + }); + }); + + describe('onlyRole modifier', function () { + beforeEach(async function () { + await this.accessControl.grantRole(ROLE, authorized, { from: admin }); + }); + + it('do not revert if sender has role', async function () { + await this.accessControl.methods['$_checkRole(bytes32)'](ROLE, { from: authorized }); + }); + + it("revert if sender doesn't have role #1", async function () { + await expectRevert( + this.accessControl.methods['$_checkRole(bytes32)'](ROLE, { from: other }), + `${errorPrefix}: account ${other.toLowerCase()} is missing role ${ROLE}`, + ); + }); + + it("revert if sender doesn't have role #2", async function () { + await expectRevert( + this.accessControl.methods['$_checkRole(bytes32)'](OTHER_ROLE, { from: authorized }), + `${errorPrefix}: account ${authorized.toLowerCase()} is missing role ${OTHER_ROLE}`, + ); + }); + }); +} + +function shouldBehaveLikeAccessControlEnumerable(errorPrefix, admin, authorized, other, otherAdmin, otherAuthorized) { + shouldSupportInterfaces(['AccessControlEnumerable']); + + describe('enumerating', function () { + it('role bearers can be enumerated', async function () { + await this.accessControl.grantRole(ROLE, authorized, { from: admin }); + await this.accessControl.grantRole(ROLE, other, { from: admin }); + await this.accessControl.grantRole(ROLE, otherAuthorized, { from: admin }); + await this.accessControl.revokeRole(ROLE, other, { from: admin }); + + const memberCount = await this.accessControl.getRoleMemberCount(ROLE); + expect(memberCount).to.bignumber.equal('2'); + + const bearers = []; + for (let i = 0; i < memberCount; ++i) { + bearers.push(await this.accessControl.getRoleMember(ROLE, i)); + } + + expect(bearers).to.have.members([authorized, otherAuthorized]); + }); + it('role enumeration should be in sync after renounceRole call', async function () { + expect(await this.accessControl.getRoleMemberCount(ROLE)).to.bignumber.equal('0'); + await this.accessControl.grantRole(ROLE, admin, { from: admin }); + expect(await this.accessControl.getRoleMemberCount(ROLE)).to.bignumber.equal('1'); + await this.accessControl.renounceRole(ROLE, admin, { from: admin }); + expect(await this.accessControl.getRoleMemberCount(ROLE)).to.bignumber.equal('0'); + }); + }); +} + +module.exports = { + DEFAULT_ADMIN_ROLE, + shouldBehaveLikeAccessControl, + shouldBehaveLikeAccessControlEnumerable, +}; diff --git a/lib/openzeppelin-contracts/test/access/AccessControl.test.js b/lib/openzeppelin-contracts/test/access/AccessControl.test.js new file mode 100644 index 0000000..90efad3 --- /dev/null +++ b/lib/openzeppelin-contracts/test/access/AccessControl.test.js @@ -0,0 +1,12 @@ +const { DEFAULT_ADMIN_ROLE, shouldBehaveLikeAccessControl } = require('./AccessControl.behavior.js'); + +const AccessControl = artifacts.require('$AccessControl'); + +contract('AccessControl', function (accounts) { + beforeEach(async function () { + this.accessControl = await AccessControl.new({ from: accounts[0] }); + await this.accessControl.$_grantRole(DEFAULT_ADMIN_ROLE, accounts[0]); + }); + + shouldBehaveLikeAccessControl('AccessControl', ...accounts); +}); diff --git a/lib/openzeppelin-contracts/test/access/AccessControlCrossChain.test.js b/lib/openzeppelin-contracts/test/access/AccessControlCrossChain.test.js new file mode 100644 index 0000000..d5a4107 --- /dev/null +++ b/lib/openzeppelin-contracts/test/access/AccessControlCrossChain.test.js @@ -0,0 +1,49 @@ +const { expectRevert } = require('@openzeppelin/test-helpers'); +const { BridgeHelper } = require('../helpers/crosschain'); + +const { DEFAULT_ADMIN_ROLE, shouldBehaveLikeAccessControl } = require('./AccessControl.behavior.js'); + +const crossChainRoleAlias = role => + web3.utils.leftPad( + web3.utils.toHex(web3.utils.toBN(role).xor(web3.utils.toBN(web3.utils.soliditySha3('CROSSCHAIN_ALIAS')))), + 64, + ); + +const AccessControlCrossChainMock = artifacts.require('$AccessControlCrossChainMock'); + +const ROLE = web3.utils.soliditySha3('ROLE'); + +contract('AccessControl', function (accounts) { + before(async function () { + this.bridge = await BridgeHelper.deploy(); + }); + + beforeEach(async function () { + this.accessControl = await AccessControlCrossChainMock.new({ from: accounts[0] }); + await this.accessControl.$_grantRole(DEFAULT_ADMIN_ROLE, accounts[0]); + }); + + shouldBehaveLikeAccessControl('AccessControl', ...accounts); + + describe('CrossChain enabled', function () { + beforeEach(async function () { + await this.accessControl.grantRole(ROLE, accounts[0], { from: accounts[0] }); + await this.accessControl.grantRole(crossChainRoleAlias(ROLE), accounts[1], { from: accounts[0] }); + }); + + it('check alliassing', async function () { + expect(await this.accessControl.$_crossChainRoleAlias(ROLE)).to.be.bignumber.equal(crossChainRoleAlias(ROLE)); + }); + + it('Crosschain calls not authorized to non-aliased addresses', async function () { + await expectRevert( + this.bridge.call(accounts[0], this.accessControl, '$_checkRole(bytes32)', [ROLE]), + `AccessControl: account ${accounts[0].toLowerCase()} is missing role ${crossChainRoleAlias(ROLE)}`, + ); + }); + + it('Crosschain calls not authorized to non-aliased addresses', async function () { + await this.bridge.call(accounts[1], this.accessControl, '$_checkRole(bytes32)', [ROLE]); + }); + }); +}); diff --git a/lib/openzeppelin-contracts/test/access/AccessControlEnumerable.test.js b/lib/openzeppelin-contracts/test/access/AccessControlEnumerable.test.js new file mode 100644 index 0000000..2aa59f4 --- /dev/null +++ b/lib/openzeppelin-contracts/test/access/AccessControlEnumerable.test.js @@ -0,0 +1,17 @@ +const { + DEFAULT_ADMIN_ROLE, + shouldBehaveLikeAccessControl, + shouldBehaveLikeAccessControlEnumerable, +} = require('./AccessControl.behavior.js'); + +const AccessControlEnumerable = artifacts.require('$AccessControlEnumerable'); + +contract('AccessControl', function (accounts) { + beforeEach(async function () { + this.accessControl = await AccessControlEnumerable.new({ from: accounts[0] }); + await this.accessControl.$_grantRole(DEFAULT_ADMIN_ROLE, accounts[0]); + }); + + shouldBehaveLikeAccessControl('AccessControl', ...accounts); + shouldBehaveLikeAccessControlEnumerable('AccessControl', ...accounts); +}); diff --git a/lib/openzeppelin-contracts/test/access/Ownable.test.js b/lib/openzeppelin-contracts/test/access/Ownable.test.js new file mode 100644 index 0000000..dc308f9 --- /dev/null +++ b/lib/openzeppelin-contracts/test/access/Ownable.test.js @@ -0,0 +1,51 @@ +const { constants, expectEvent, expectRevert } = require('@openzeppelin/test-helpers'); +const { ZERO_ADDRESS } = constants; + +const { expect } = require('chai'); + +const Ownable = artifacts.require('$Ownable'); + +contract('Ownable', function (accounts) { + const [owner, other] = accounts; + + beforeEach(async function () { + this.ownable = await Ownable.new({ from: owner }); + }); + + it('has an owner', async function () { + expect(await this.ownable.owner()).to.equal(owner); + }); + + describe('transfer ownership', function () { + it('changes owner after transfer', async function () { + const receipt = await this.ownable.transferOwnership(other, { from: owner }); + expectEvent(receipt, 'OwnershipTransferred'); + + expect(await this.ownable.owner()).to.equal(other); + }); + + it('prevents non-owners from transferring', async function () { + await expectRevert(this.ownable.transferOwnership(other, { from: other }), 'Ownable: caller is not the owner'); + }); + + it('guards ownership against stuck state', async function () { + await expectRevert( + this.ownable.transferOwnership(ZERO_ADDRESS, { from: owner }), + 'Ownable: new owner is the zero address', + ); + }); + }); + + describe('renounce ownership', function () { + it('loses owner after renouncement', async function () { + const receipt = await this.ownable.renounceOwnership({ from: owner }); + expectEvent(receipt, 'OwnershipTransferred'); + + expect(await this.ownable.owner()).to.equal(ZERO_ADDRESS); + }); + + it('prevents non-owners from renouncement', async function () { + await expectRevert(this.ownable.renounceOwnership({ from: other }), 'Ownable: caller is not the owner'); + }); + }); +}); diff --git a/lib/openzeppelin-contracts/test/access/Ownable2Step.test.js b/lib/openzeppelin-contracts/test/access/Ownable2Step.test.js new file mode 100644 index 0000000..64d4327 --- /dev/null +++ b/lib/openzeppelin-contracts/test/access/Ownable2Step.test.js @@ -0,0 +1,57 @@ +const { constants, expectEvent, expectRevert } = require('@openzeppelin/test-helpers'); +const { ZERO_ADDRESS } = constants; +const { expect } = require('chai'); + +const Ownable2Step = artifacts.require('$Ownable2Step'); + +contract('Ownable2Step', function (accounts) { + const [owner, accountA, accountB] = accounts; + + beforeEach(async function () { + this.ownable2Step = await Ownable2Step.new({ from: owner }); + }); + + describe('transfer ownership', function () { + it('starting a transfer does not change owner', async function () { + const receipt = await this.ownable2Step.transferOwnership(accountA, { from: owner }); + expectEvent(receipt, 'OwnershipTransferStarted', { previousOwner: owner, newOwner: accountA }); + expect(await this.ownable2Step.owner()).to.equal(owner); + expect(await this.ownable2Step.pendingOwner()).to.equal(accountA); + }); + + it('changes owner after transfer', async function () { + await this.ownable2Step.transferOwnership(accountA, { from: owner }); + const receipt = await this.ownable2Step.acceptOwnership({ from: accountA }); + expectEvent(receipt, 'OwnershipTransferred', { previousOwner: owner, newOwner: accountA }); + expect(await this.ownable2Step.owner()).to.equal(accountA); + expect(await this.ownable2Step.pendingOwner()).to.not.equal(accountA); + }); + + it('changes owner after renouncing ownership', async function () { + await this.ownable2Step.renounceOwnership({ from: owner }); + // If renounceOwnership is removed from parent an alternative is needed ... + // without it is difficult to cleanly renounce with the two step process + // see: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/3620#discussion_r957930388 + expect(await this.ownable2Step.owner()).to.equal(ZERO_ADDRESS); + }); + + it('pending owner resets after renouncing ownership', async function () { + await this.ownable2Step.transferOwnership(accountA, { from: owner }); + expect(await this.ownable2Step.pendingOwner()).to.equal(accountA); + await this.ownable2Step.renounceOwnership({ from: owner }); + expect(await this.ownable2Step.pendingOwner()).to.equal(ZERO_ADDRESS); + await expectRevert( + this.ownable2Step.acceptOwnership({ from: accountA }), + 'Ownable2Step: caller is not the new owner', + ); + }); + + it('guards transfer against invalid user', async function () { + await this.ownable2Step.transferOwnership(accountA, { from: owner }); + await expectRevert( + this.ownable2Step.acceptOwnership({ from: accountB }), + 'Ownable2Step: caller is not the new owner', + ); + }); + }); +}); diff --git a/lib/openzeppelin-contracts/test/crosschain/CrossChainEnabled.test.js b/lib/openzeppelin-contracts/test/crosschain/CrossChainEnabled.test.js new file mode 100644 index 0000000..9e7d263 --- /dev/null +++ b/lib/openzeppelin-contracts/test/crosschain/CrossChainEnabled.test.js @@ -0,0 +1,78 @@ +const { BridgeHelper } = require('../helpers/crosschain'); +const { expectRevertCustomError } = require('../helpers/customError'); + +function randomAddress() { + return web3.utils.toChecksumAddress(web3.utils.randomHex(20)); +} + +const CrossChainEnabledAMBMock = artifacts.require('CrossChainEnabledAMBMock'); +const CrossChainEnabledArbitrumL1Mock = artifacts.require('CrossChainEnabledArbitrumL1Mock'); +const CrossChainEnabledArbitrumL2Mock = artifacts.require('CrossChainEnabledArbitrumL2Mock'); +const CrossChainEnabledOptimismMock = artifacts.require('CrossChainEnabledOptimismMock'); +const CrossChainEnabledPolygonChildMock = artifacts.require('CrossChainEnabledPolygonChildMock'); + +function shouldBehaveLikeReceiver(sender = randomAddress()) { + it('should reject same-chain calls', async function () { + await expectRevertCustomError(this.receiver.crossChainRestricted(), 'NotCrossChainCall()'); + + await expectRevertCustomError(this.receiver.crossChainOwnerRestricted(), 'NotCrossChainCall()'); + }); + + it('should restrict to cross-chain call from a invalid sender', async function () { + await expectRevertCustomError( + this.bridge.call(sender, this.receiver, 'crossChainOwnerRestricted()'), + `InvalidCrossChainSender("${sender}", "${await this.receiver.owner()}")`, + ); + }); + + it('should grant access to cross-chain call from the owner', async function () { + await this.bridge.call(await this.receiver.owner(), this.receiver, 'crossChainOwnerRestricted()'); + }); +} + +contract('CrossChainEnabled', function () { + describe('AMB', function () { + beforeEach(async function () { + this.bridge = await BridgeHelper.deploy('AMB'); + this.receiver = await CrossChainEnabledAMBMock.new(this.bridge.address); + }); + + shouldBehaveLikeReceiver(); + }); + + describe('Arbitrum-L1', function () { + beforeEach(async function () { + this.bridge = await BridgeHelper.deploy('Arbitrum-L1'); + this.receiver = await CrossChainEnabledArbitrumL1Mock.new(this.bridge.address); + }); + + shouldBehaveLikeReceiver(); + }); + + describe('Arbitrum-L2', function () { + beforeEach(async function () { + this.bridge = await BridgeHelper.deploy('Arbitrum-L2'); + this.receiver = await CrossChainEnabledArbitrumL2Mock.new(); + }); + + shouldBehaveLikeReceiver(); + }); + + describe('Optimism', function () { + beforeEach(async function () { + this.bridge = await BridgeHelper.deploy('Optimism'); + this.receiver = await CrossChainEnabledOptimismMock.new(this.bridge.address); + }); + + shouldBehaveLikeReceiver(); + }); + + describe('Polygon-Child', function () { + beforeEach(async function () { + this.bridge = await BridgeHelper.deploy('Polygon-Child'); + this.receiver = await CrossChainEnabledPolygonChildMock.new(this.bridge.address); + }); + + shouldBehaveLikeReceiver(); + }); +}); diff --git a/lib/openzeppelin-contracts/test/finance/PaymentSplitter.test.js b/lib/openzeppelin-contracts/test/finance/PaymentSplitter.test.js new file mode 100644 index 0000000..1408c9f --- /dev/null +++ b/lib/openzeppelin-contracts/test/finance/PaymentSplitter.test.js @@ -0,0 +1,217 @@ +const { balance, constants, ether, expectEvent, send, expectRevert } = require('@openzeppelin/test-helpers'); +const { ZERO_ADDRESS } = constants; + +const { expect } = require('chai'); + +const PaymentSplitter = artifacts.require('PaymentSplitter'); +const ERC20 = artifacts.require('$ERC20'); + +contract('PaymentSplitter', function (accounts) { + const [owner, payee1, payee2, payee3, nonpayee1, payer1] = accounts; + + const amount = ether('1'); + + it('rejects an empty set of payees', async function () { + await expectRevert(PaymentSplitter.new([], []), 'PaymentSplitter: no payees'); + }); + + it('rejects more payees than shares', async function () { + await expectRevert( + PaymentSplitter.new([payee1, payee2, payee3], [20, 30]), + 'PaymentSplitter: payees and shares length mismatch', + ); + }); + + it('rejects more shares than payees', async function () { + await expectRevert( + PaymentSplitter.new([payee1, payee2], [20, 30, 40]), + 'PaymentSplitter: payees and shares length mismatch', + ); + }); + + it('rejects null payees', async function () { + await expectRevert( + PaymentSplitter.new([payee1, ZERO_ADDRESS], [20, 30]), + 'PaymentSplitter: account is the zero address', + ); + }); + + it('rejects zero-valued shares', async function () { + await expectRevert(PaymentSplitter.new([payee1, payee2], [20, 0]), 'PaymentSplitter: shares are 0'); + }); + + it('rejects repeated payees', async function () { + await expectRevert(PaymentSplitter.new([payee1, payee1], [20, 30]), 'PaymentSplitter: account already has shares'); + }); + + context('once deployed', function () { + beforeEach(async function () { + this.payees = [payee1, payee2, payee3]; + this.shares = [20, 10, 70]; + + this.contract = await PaymentSplitter.new(this.payees, this.shares); + this.token = await ERC20.new('MyToken', 'MT'); + await this.token.$_mint(owner, ether('1000')); + }); + + it('has total shares', async function () { + expect(await this.contract.totalShares()).to.be.bignumber.equal('100'); + }); + + it('has payees', async function () { + await Promise.all( + this.payees.map(async (payee, index) => { + expect(await this.contract.payee(index)).to.equal(payee); + expect(await this.contract.released(payee)).to.be.bignumber.equal('0'); + expect(await this.contract.releasable(payee)).to.be.bignumber.equal('0'); + }), + ); + }); + + describe('accepts payments', function () { + it('Ether', async function () { + await send.ether(owner, this.contract.address, amount); + + expect(await balance.current(this.contract.address)).to.be.bignumber.equal(amount); + }); + + it('Token', async function () { + await this.token.transfer(this.contract.address, amount, { from: owner }); + + expect(await this.token.balanceOf(this.contract.address)).to.be.bignumber.equal(amount); + }); + }); + + describe('shares', function () { + it('stores shares if address is payee', async function () { + expect(await this.contract.shares(payee1)).to.be.bignumber.not.equal('0'); + }); + + it('does not store shares if address is not payee', async function () { + expect(await this.contract.shares(nonpayee1)).to.be.bignumber.equal('0'); + }); + }); + + describe('release', function () { + describe('Ether', function () { + it('reverts if no funds to claim', async function () { + await expectRevert(this.contract.release(payee1), 'PaymentSplitter: account is not due payment'); + }); + it('reverts if non-payee want to claim', async function () { + await send.ether(payer1, this.contract.address, amount); + await expectRevert(this.contract.release(nonpayee1), 'PaymentSplitter: account has no shares'); + }); + }); + + describe('Token', function () { + it('reverts if no funds to claim', async function () { + await expectRevert( + this.contract.release(this.token.address, payee1), + 'PaymentSplitter: account is not due payment', + ); + }); + it('reverts if non-payee want to claim', async function () { + await this.token.transfer(this.contract.address, amount, { from: owner }); + await expectRevert( + this.contract.release(this.token.address, nonpayee1), + 'PaymentSplitter: account has no shares', + ); + }); + }); + }); + + describe('tracks releasable and released', function () { + it('Ether', async function () { + await send.ether(payer1, this.contract.address, amount); + const payment = amount.divn(10); + expect(await this.contract.releasable(payee2)).to.be.bignumber.equal(payment); + await this.contract.release(payee2); + expect(await this.contract.releasable(payee2)).to.be.bignumber.equal('0'); + expect(await this.contract.released(payee2)).to.be.bignumber.equal(payment); + }); + + it('Token', async function () { + await this.token.transfer(this.contract.address, amount, { from: owner }); + const payment = amount.divn(10); + expect(await this.contract.releasable(this.token.address, payee2, {})).to.be.bignumber.equal(payment); + await this.contract.release(this.token.address, payee2); + expect(await this.contract.releasable(this.token.address, payee2, {})).to.be.bignumber.equal('0'); + expect(await this.contract.released(this.token.address, payee2)).to.be.bignumber.equal(payment); + }); + }); + + describe('distributes funds to payees', function () { + it('Ether', async function () { + await send.ether(payer1, this.contract.address, amount); + + // receive funds + const initBalance = await balance.current(this.contract.address); + expect(initBalance).to.be.bignumber.equal(amount); + + // distribute to payees + + const tracker1 = await balance.tracker(payee1); + const receipt1 = await this.contract.release(payee1); + const profit1 = await tracker1.delta(); + expect(profit1).to.be.bignumber.equal(ether('0.20')); + expectEvent(receipt1, 'PaymentReleased', { to: payee1, amount: profit1 }); + + const tracker2 = await balance.tracker(payee2); + const receipt2 = await this.contract.release(payee2); + const profit2 = await tracker2.delta(); + expect(profit2).to.be.bignumber.equal(ether('0.10')); + expectEvent(receipt2, 'PaymentReleased', { to: payee2, amount: profit2 }); + + const tracker3 = await balance.tracker(payee3); + const receipt3 = await this.contract.release(payee3); + const profit3 = await tracker3.delta(); + expect(profit3).to.be.bignumber.equal(ether('0.70')); + expectEvent(receipt3, 'PaymentReleased', { to: payee3, amount: profit3 }); + + // end balance should be zero + expect(await balance.current(this.contract.address)).to.be.bignumber.equal('0'); + + // check correct funds released accounting + expect(await this.contract.totalReleased()).to.be.bignumber.equal(initBalance); + }); + + it('Token', async function () { + expect(await this.token.balanceOf(payee1)).to.be.bignumber.equal('0'); + expect(await this.token.balanceOf(payee2)).to.be.bignumber.equal('0'); + expect(await this.token.balanceOf(payee3)).to.be.bignumber.equal('0'); + + await this.token.transfer(this.contract.address, amount, { from: owner }); + + expectEvent(await this.contract.release(this.token.address, payee1), 'ERC20PaymentReleased', { + token: this.token.address, + to: payee1, + amount: ether('0.20'), + }); + + await this.token.transfer(this.contract.address, amount, { from: owner }); + + expectEvent(await this.contract.release(this.token.address, payee1), 'ERC20PaymentReleased', { + token: this.token.address, + to: payee1, + amount: ether('0.20'), + }); + + expectEvent(await this.contract.release(this.token.address, payee2), 'ERC20PaymentReleased', { + token: this.token.address, + to: payee2, + amount: ether('0.20'), + }); + + expectEvent(await this.contract.release(this.token.address, payee3), 'ERC20PaymentReleased', { + token: this.token.address, + to: payee3, + amount: ether('1.40'), + }); + + expect(await this.token.balanceOf(payee1)).to.be.bignumber.equal(ether('0.40')); + expect(await this.token.balanceOf(payee2)).to.be.bignumber.equal(ether('0.20')); + expect(await this.token.balanceOf(payee3)).to.be.bignumber.equal(ether('1.40')); + }); + }); + }); +}); diff --git a/lib/openzeppelin-contracts/test/finance/VestingWallet.behavior.js b/lib/openzeppelin-contracts/test/finance/VestingWallet.behavior.js new file mode 100644 index 0000000..afd4c04 --- /dev/null +++ b/lib/openzeppelin-contracts/test/finance/VestingWallet.behavior.js @@ -0,0 +1,59 @@ +const { time } = require('@nomicfoundation/hardhat-network-helpers'); +const { expectEvent } = require('@openzeppelin/test-helpers'); +const { expect } = require('chai'); + +function releasedEvent(token, amount) { + return token ? ['ERC20Released', { token: token.address, amount }] : ['EtherReleased', { amount }]; +} + +function shouldBehaveLikeVesting(beneficiary) { + it('check vesting schedule', async function () { + const [vestedAmount, releasable, ...args] = this.token + ? ['vestedAmount(address,uint64)', 'releasable(address)', this.token.address] + : ['vestedAmount(uint64)', 'releasable()']; + + for (const timestamp of this.schedule) { + await time.increaseTo(timestamp); + const vesting = this.vestingFn(timestamp); + + expect(await this.mock.methods[vestedAmount](...args, timestamp)).to.be.bignumber.equal(vesting); + + expect(await this.mock.methods[releasable](...args)).to.be.bignumber.equal(vesting); + } + }); + + it('execute vesting schedule', async function () { + const [release, ...args] = this.token ? ['release(address)', this.token.address] : ['release()']; + + let released = web3.utils.toBN(0); + const before = await this.getBalance(beneficiary); + + { + const receipt = await this.mock.methods[release](...args); + + await expectEvent.inTransaction(receipt.tx, this.mock, ...releasedEvent(this.token, '0')); + + await this.checkRelease(receipt, beneficiary, '0'); + + expect(await this.getBalance(beneficiary)).to.be.bignumber.equal(before); + } + + for (const timestamp of this.schedule) { + await time.setNextBlockTimestamp(timestamp); + const vested = this.vestingFn(timestamp); + + const receipt = await this.mock.methods[release](...args); + await expectEvent.inTransaction(receipt.tx, this.mock, ...releasedEvent(this.token, vested.sub(released))); + + await this.checkRelease(receipt, beneficiary, vested.sub(released)); + + expect(await this.getBalance(beneficiary)).to.be.bignumber.equal(before.add(vested)); + + released = vested; + } + }); +} + +module.exports = { + shouldBehaveLikeVesting, +}; diff --git a/lib/openzeppelin-contracts/test/finance/VestingWallet.test.js b/lib/openzeppelin-contracts/test/finance/VestingWallet.test.js new file mode 100644 index 0000000..5b90a69 --- /dev/null +++ b/lib/openzeppelin-contracts/test/finance/VestingWallet.test.js @@ -0,0 +1,67 @@ +const { constants, expectEvent, expectRevert, time } = require('@openzeppelin/test-helpers'); +const { web3 } = require('@openzeppelin/test-helpers/src/setup'); +const { expect } = require('chai'); + +const VestingWallet = artifacts.require('VestingWallet'); +const ERC20 = artifacts.require('$ERC20'); + +const { shouldBehaveLikeVesting } = require('./VestingWallet.behavior'); + +const min = (...args) => args.slice(1).reduce((x, y) => (x.lt(y) ? x : y), args[0]); + +contract('VestingWallet', function (accounts) { + const [sender, beneficiary] = accounts; + + const amount = web3.utils.toBN(web3.utils.toWei('100')); + const duration = web3.utils.toBN(4 * 365 * 86400); // 4 years + + beforeEach(async function () { + this.start = (await time.latest()).addn(3600); // in 1 hour + this.mock = await VestingWallet.new(beneficiary, this.start, duration); + }); + + it('rejects zero address for beneficiary', async function () { + await expectRevert( + VestingWallet.new(constants.ZERO_ADDRESS, this.start, duration), + 'VestingWallet: beneficiary is zero address', + ); + }); + + it('check vesting contract', async function () { + expect(await this.mock.beneficiary()).to.be.equal(beneficiary); + expect(await this.mock.start()).to.be.bignumber.equal(this.start); + expect(await this.mock.duration()).to.be.bignumber.equal(duration); + }); + + describe('vesting schedule', function () { + beforeEach(async function () { + this.schedule = Array(64) + .fill() + .map((_, i) => web3.utils.toBN(i).mul(duration).divn(60).add(this.start)); + this.vestingFn = timestamp => min(amount, amount.mul(timestamp.sub(this.start)).div(duration)); + }); + + describe('Eth vesting', function () { + beforeEach(async function () { + await web3.eth.sendTransaction({ from: sender, to: this.mock.address, value: amount }); + this.getBalance = account => web3.eth.getBalance(account).then(web3.utils.toBN); + this.checkRelease = () => {}; + }); + + shouldBehaveLikeVesting(beneficiary); + }); + + describe('ERC20 vesting', function () { + beforeEach(async function () { + this.token = await ERC20.new('Name', 'Symbol'); + this.getBalance = account => this.token.balanceOf(account); + this.checkRelease = (receipt, to, value) => + expectEvent.inTransaction(receipt.tx, this.token, 'Transfer', { from: this.mock.address, to, value }); + + await this.token.$_mint(this.mock.address, amount); + }); + + shouldBehaveLikeVesting(beneficiary); + }); + }); +}); diff --git a/lib/openzeppelin-contracts/test/governance/Governor.test.js b/lib/openzeppelin-contracts/test/governance/Governor.test.js new file mode 100644 index 0000000..cc3cc17 --- /dev/null +++ b/lib/openzeppelin-contracts/test/governance/Governor.test.js @@ -0,0 +1,630 @@ +const { BN, expectEvent, expectRevert } = require('@openzeppelin/test-helpers'); +const { expect } = require('chai'); +const ethSigUtil = require('eth-sig-util'); +const Wallet = require('ethereumjs-wallet').default; +const { fromRpcSig } = require('ethereumjs-util'); +const Enums = require('../helpers/enums'); +const { EIP712Domain } = require('../helpers/eip712'); +const { GovernorHelper } = require('../helpers/governance'); + +const { shouldSupportInterfaces } = require('../utils/introspection/SupportsInterface.behavior'); + +const Token = artifacts.require('$ERC20Votes'); +const Governor = artifacts.require('$GovernorMock'); +const CallReceiver = artifacts.require('CallReceiverMock'); +const ERC721 = artifacts.require('$ERC721'); +const ERC1155 = artifacts.require('$ERC1155'); + +contract('Governor', function (accounts) { + const [owner, proposer, voter1, voter2, voter3, voter4] = accounts; + const empty = web3.utils.toChecksumAddress(web3.utils.randomHex(20)); + + const name = 'OZ-Governor'; + const version = '1'; + const tokenName = 'MockToken'; + const tokenSymbol = 'MTKN'; + const tokenSupply = web3.utils.toWei('100'); + const votingDelay = new BN(4); + const votingPeriod = new BN(16); + const value = web3.utils.toWei('1'); + + beforeEach(async function () { + this.chainId = await web3.eth.getChainId(); + this.token = await Token.new(tokenName, tokenSymbol, tokenName); + this.mock = await Governor.new( + name, // name + votingDelay, // initialVotingDelay + votingPeriod, // initialVotingPeriod + 0, // initialProposalThreshold + this.token.address, // tokenAddress + 10, // quorumNumeratorValue + ); + this.receiver = await CallReceiver.new(); + + this.helper = new GovernorHelper(this.mock); + + await web3.eth.sendTransaction({ from: owner, to: this.mock.address, value }); + + await this.token.$_mint(owner, tokenSupply); + await this.helper.delegate({ token: this.token, to: voter1, value: web3.utils.toWei('10') }, { from: owner }); + await this.helper.delegate({ token: this.token, to: voter2, value: web3.utils.toWei('7') }, { from: owner }); + await this.helper.delegate({ token: this.token, to: voter3, value: web3.utils.toWei('5') }, { from: owner }); + await this.helper.delegate({ token: this.token, to: voter4, value: web3.utils.toWei('2') }, { from: owner }); + + this.proposal = this.helper.setProposal( + [ + { + target: this.receiver.address, + data: this.receiver.contract.methods.mockFunction().encodeABI(), + value, + }, + ], + '', + ); + }); + + shouldSupportInterfaces(['ERC165', 'ERC1155Receiver', 'Governor', 'GovernorWithParams']); + + it('deployment check', async function () { + expect(await this.mock.name()).to.be.equal(name); + expect(await this.mock.token()).to.be.equal(this.token.address); + expect(await this.mock.votingDelay()).to.be.bignumber.equal(votingDelay); + expect(await this.mock.votingPeriod()).to.be.bignumber.equal(votingPeriod); + expect(await this.mock.quorum(0)).to.be.bignumber.equal('0'); + expect(await this.mock.COUNTING_MODE()).to.be.equal('support=bravo&quorum=for,abstain'); + }); + + it('nominal workflow', async function () { + // Before + expect(await this.mock.hasVoted(this.proposal.id, owner)).to.be.equal(false); + expect(await this.mock.hasVoted(this.proposal.id, voter1)).to.be.equal(false); + expect(await this.mock.hasVoted(this.proposal.id, voter2)).to.be.equal(false); + expect(await web3.eth.getBalance(this.mock.address)).to.be.bignumber.equal(value); + expect(await web3.eth.getBalance(this.receiver.address)).to.be.bignumber.equal('0'); + + // Run proposal + const txPropose = await this.helper.propose({ from: proposer }); + + expectEvent(txPropose, 'ProposalCreated', { + proposalId: this.proposal.id, + proposer, + targets: this.proposal.targets, + // values: this.proposal.values, + signatures: this.proposal.signatures, + calldatas: this.proposal.data, + startBlock: new BN(txPropose.receipt.blockNumber).add(votingDelay), + endBlock: new BN(txPropose.receipt.blockNumber).add(votingDelay).add(votingPeriod), + description: this.proposal.description, + }); + + await this.helper.waitForSnapshot(); + + expectEvent( + await this.helper.vote({ support: Enums.VoteType.For, reason: 'This is nice' }, { from: voter1 }), + 'VoteCast', + { + voter: voter1, + support: Enums.VoteType.For, + reason: 'This is nice', + weight: web3.utils.toWei('10'), + }, + ); + + expectEvent(await this.helper.vote({ support: Enums.VoteType.For }, { from: voter2 }), 'VoteCast', { + voter: voter2, + support: Enums.VoteType.For, + weight: web3.utils.toWei('7'), + }); + + expectEvent(await this.helper.vote({ support: Enums.VoteType.Against }, { from: voter3 }), 'VoteCast', { + voter: voter3, + support: Enums.VoteType.Against, + weight: web3.utils.toWei('5'), + }); + + expectEvent(await this.helper.vote({ support: Enums.VoteType.Abstain }, { from: voter4 }), 'VoteCast', { + voter: voter4, + support: Enums.VoteType.Abstain, + weight: web3.utils.toWei('2'), + }); + + await this.helper.waitForDeadline(); + + const txExecute = await this.helper.execute(); + + expectEvent(txExecute, 'ProposalExecuted', { proposalId: this.proposal.id }); + + await expectEvent.inTransaction(txExecute.tx, this.receiver, 'MockFunctionCalled'); + + // After + expect(await this.mock.hasVoted(this.proposal.id, owner)).to.be.equal(false); + expect(await this.mock.hasVoted(this.proposal.id, voter1)).to.be.equal(true); + expect(await this.mock.hasVoted(this.proposal.id, voter2)).to.be.equal(true); + expect(await web3.eth.getBalance(this.mock.address)).to.be.bignumber.equal('0'); + expect(await web3.eth.getBalance(this.receiver.address)).to.be.bignumber.equal(value); + }); + + it('vote with signature', async function () { + const voterBySig = Wallet.generate(); + const voterBySigAddress = web3.utils.toChecksumAddress(voterBySig.getAddressString()); + + const signature = async message => { + return fromRpcSig( + ethSigUtil.signTypedMessage(voterBySig.getPrivateKey(), { + data: { + types: { + EIP712Domain, + Ballot: [ + { name: 'proposalId', type: 'uint256' }, + { name: 'support', type: 'uint8' }, + ], + }, + domain: { name, version, chainId: this.chainId, verifyingContract: this.mock.address }, + primaryType: 'Ballot', + message, + }, + }), + ); + }; + + await this.token.delegate(voterBySigAddress, { from: voter1 }); + + // Run proposal + await this.helper.propose(); + await this.helper.waitForSnapshot(); + expectEvent(await this.helper.vote({ support: Enums.VoteType.For, signature }), 'VoteCast', { + voter: voterBySigAddress, + support: Enums.VoteType.For, + }); + await this.helper.waitForDeadline(); + await this.helper.execute(); + + // After + expect(await this.mock.hasVoted(this.proposal.id, owner)).to.be.equal(false); + expect(await this.mock.hasVoted(this.proposal.id, voter1)).to.be.equal(false); + expect(await this.mock.hasVoted(this.proposal.id, voter2)).to.be.equal(false); + expect(await this.mock.hasVoted(this.proposal.id, voterBySigAddress)).to.be.equal(true); + }); + + it('send ethers', async function () { + this.proposal = this.helper.setProposal( + [ + { + target: empty, + value, + }, + ], + '', + ); + + // Before + expect(await web3.eth.getBalance(this.mock.address)).to.be.bignumber.equal(value); + expect(await web3.eth.getBalance(empty)).to.be.bignumber.equal('0'); + + // Run proposal + await this.helper.propose(); + await this.helper.waitForSnapshot(); + await this.helper.vote({ support: Enums.VoteType.For }, { from: voter1 }); + await this.helper.waitForDeadline(); + await this.helper.execute(); + + // After + expect(await web3.eth.getBalance(this.mock.address)).to.be.bignumber.equal('0'); + expect(await web3.eth.getBalance(empty)).to.be.bignumber.equal(value); + }); + + describe('should revert', function () { + describe('on propose', function () { + it('if proposal already exists', async function () { + await this.helper.propose(); + await expectRevert(this.helper.propose(), 'Governor: proposal already exists'); + }); + }); + + describe('on vote', function () { + it('if proposal does not exist', async function () { + await expectRevert( + this.helper.vote({ support: Enums.VoteType.For }, { from: voter1 }), + 'Governor: unknown proposal id', + ); + }); + + it('if voting has not started', async function () { + await this.helper.propose(); + await expectRevert( + this.helper.vote({ support: Enums.VoteType.For }, { from: voter1 }), + 'Governor: vote not currently active', + ); + }); + + it('if support value is invalid', async function () { + await this.helper.propose(); + await this.helper.waitForSnapshot(); + await expectRevert( + this.helper.vote({ support: new BN('255') }), + 'GovernorVotingSimple: invalid value for enum VoteType', + ); + }); + + it('if vote was already casted', async function () { + await this.helper.propose(); + await this.helper.waitForSnapshot(); + await this.helper.vote({ support: Enums.VoteType.For }, { from: voter1 }); + await expectRevert( + this.helper.vote({ support: Enums.VoteType.For }, { from: voter1 }), + 'GovernorVotingSimple: vote already cast', + ); + }); + + it('if voting is over', async function () { + await this.helper.propose(); + await this.helper.waitForDeadline(); + await expectRevert( + this.helper.vote({ support: Enums.VoteType.For }, { from: voter1 }), + 'Governor: vote not currently active', + ); + }); + }); + + describe('on execute', function () { + it('if proposal does not exist', async function () { + await expectRevert(this.helper.execute(), 'Governor: unknown proposal id'); + }); + + it('if quorum is not reached', async function () { + await this.helper.propose(); + await this.helper.waitForSnapshot(); + await this.helper.vote({ support: Enums.VoteType.For }, { from: voter3 }); + await expectRevert(this.helper.execute(), 'Governor: proposal not successful'); + }); + + it('if score not reached', async function () { + await this.helper.propose(); + await this.helper.waitForSnapshot(); + await this.helper.vote({ support: Enums.VoteType.Against }, { from: voter1 }); + await expectRevert(this.helper.execute(), 'Governor: proposal not successful'); + }); + + it('if voting is not over', async function () { + await this.helper.propose(); + await this.helper.waitForSnapshot(); + await this.helper.vote({ support: Enums.VoteType.For }, { from: voter1 }); + await expectRevert(this.helper.execute(), 'Governor: proposal not successful'); + }); + + it('if receiver revert without reason', async function () { + this.proposal = this.helper.setProposal( + [ + { + target: this.receiver.address, + data: this.receiver.contract.methods.mockFunctionRevertsNoReason().encodeABI(), + }, + ], + '', + ); + + await this.helper.propose(); + await this.helper.waitForSnapshot(); + await this.helper.vote({ support: Enums.VoteType.For }, { from: voter1 }); + await this.helper.waitForDeadline(); + await expectRevert(this.helper.execute(), 'Governor: call reverted without message'); + }); + + it('if receiver revert with reason', async function () { + this.proposal = this.helper.setProposal( + [ + { + target: this.receiver.address, + data: this.receiver.contract.methods.mockFunctionRevertsReason().encodeABI(), + }, + ], + '', + ); + + await this.helper.propose(); + await this.helper.waitForSnapshot(); + await this.helper.vote({ support: Enums.VoteType.For }, { from: voter1 }); + await this.helper.waitForDeadline(); + await expectRevert(this.helper.execute(), 'CallReceiverMock: reverting'); + }); + + it('if proposal was already executed', async function () { + await this.helper.propose(); + await this.helper.waitForSnapshot(); + await this.helper.vote({ support: Enums.VoteType.For }, { from: voter1 }); + await this.helper.waitForDeadline(); + await this.helper.execute(); + await expectRevert(this.helper.execute(), 'Governor: proposal not successful'); + }); + }); + }); + + describe('state', function () { + it('Unset', async function () { + await expectRevert(this.mock.state(this.proposal.id), 'Governor: unknown proposal id'); + }); + + it('Pending & Active', async function () { + await this.helper.propose(); + expect(await this.mock.state(this.proposal.id)).to.be.bignumber.equal(Enums.ProposalState.Pending); + await this.helper.waitForSnapshot(); + expect(await this.mock.state(this.proposal.id)).to.be.bignumber.equal(Enums.ProposalState.Pending); + await this.helper.waitForSnapshot(+1); + expect(await this.mock.state(this.proposal.id)).to.be.bignumber.equal(Enums.ProposalState.Active); + }); + + it('Defeated', async function () { + await this.helper.propose(); + await this.helper.waitForDeadline(); + expect(await this.mock.state(this.proposal.id)).to.be.bignumber.equal(Enums.ProposalState.Active); + await this.helper.waitForDeadline(+1); + expect(await this.mock.state(this.proposal.id)).to.be.bignumber.equal(Enums.ProposalState.Defeated); + }); + + it('Succeeded', async function () { + await this.helper.propose(); + await this.helper.waitForSnapshot(); + await this.helper.vote({ support: Enums.VoteType.For }, { from: voter1 }); + await this.helper.waitForDeadline(); + expect(await this.mock.state(this.proposal.id)).to.be.bignumber.equal(Enums.ProposalState.Active); + await this.helper.waitForDeadline(+1); + expect(await this.mock.state(this.proposal.id)).to.be.bignumber.equal(Enums.ProposalState.Succeeded); + }); + + it('Executed', async function () { + await this.helper.propose(); + await this.helper.waitForSnapshot(); + await this.helper.vote({ support: Enums.VoteType.For }, { from: voter1 }); + await this.helper.waitForDeadline(); + await this.helper.execute(); + expect(await this.mock.state(this.proposal.id)).to.be.bignumber.equal(Enums.ProposalState.Executed); + }); + }); + + describe('cancel', function () { + it('before proposal', async function () { + await expectRevert(this.helper.cancel(), 'Governor: unknown proposal id'); + }); + + it('after proposal', async function () { + await this.helper.propose(); + + await this.helper.cancel(); + expect(await this.mock.state(this.proposal.id)).to.be.bignumber.equal(Enums.ProposalState.Canceled); + + await this.helper.waitForSnapshot(); + await expectRevert( + this.helper.vote({ support: Enums.VoteType.For }, { from: voter1 }), + 'Governor: vote not currently active', + ); + }); + + it('after vote', async function () { + await this.helper.propose(); + await this.helper.waitForSnapshot(); + await this.helper.vote({ support: Enums.VoteType.For }, { from: voter1 }); + + await this.helper.cancel(); + expect(await this.mock.state(this.proposal.id)).to.be.bignumber.equal(Enums.ProposalState.Canceled); + + await this.helper.waitForDeadline(); + await expectRevert(this.helper.execute(), 'Governor: proposal not successful'); + }); + + it('after deadline', async function () { + await this.helper.propose(); + await this.helper.waitForSnapshot(); + await this.helper.vote({ support: Enums.VoteType.For }, { from: voter1 }); + await this.helper.waitForDeadline(); + + await this.helper.cancel(); + expect(await this.mock.state(this.proposal.id)).to.be.bignumber.equal(Enums.ProposalState.Canceled); + + await expectRevert(this.helper.execute(), 'Governor: proposal not successful'); + }); + + it('after execution', async function () { + await this.helper.propose(); + await this.helper.waitForSnapshot(); + await this.helper.vote({ support: Enums.VoteType.For }, { from: voter1 }); + await this.helper.waitForDeadline(); + await this.helper.execute(); + + await expectRevert(this.helper.cancel(), 'Governor: proposal not active'); + }); + }); + + describe('proposal length', function () { + it('empty', async function () { + this.helper.setProposal([], ''); + await expectRevert(this.helper.propose(), 'Governor: empty proposal'); + }); + + it('mismatch #1', async function () { + this.helper.setProposal( + { + targets: [], + values: [web3.utils.toWei('0')], + data: [this.receiver.contract.methods.mockFunction().encodeABI()], + }, + '', + ); + await expectRevert(this.helper.propose(), 'Governor: invalid proposal length'); + }); + + it('mismatch #2', async function () { + this.helper.setProposal( + { + targets: [this.receiver.address], + values: [], + data: [this.receiver.contract.methods.mockFunction().encodeABI()], + }, + '', + ); + await expectRevert(this.helper.propose(), 'Governor: invalid proposal length'); + }); + + it('mismatch #3', async function () { + this.helper.setProposal( + { + targets: [this.receiver.address], + values: [web3.utils.toWei('0')], + data: [], + }, + '', + ); + await expectRevert(this.helper.propose(), 'Governor: invalid proposal length'); + }); + }); + + describe('onlyGovernance updates', function () { + it('setVotingDelay is protected', async function () { + await expectRevert(this.mock.setVotingDelay('0'), 'Governor: onlyGovernance'); + }); + + it('setVotingPeriod is protected', async function () { + await expectRevert(this.mock.setVotingPeriod('32'), 'Governor: onlyGovernance'); + }); + + it('setProposalThreshold is protected', async function () { + await expectRevert(this.mock.setProposalThreshold('1000000000000000000'), 'Governor: onlyGovernance'); + }); + + it('can setVotingDelay through governance', async function () { + this.helper.setProposal( + [ + { + target: this.mock.address, + data: this.mock.contract.methods.setVotingDelay('0').encodeABI(), + }, + ], + '', + ); + + await this.helper.propose(); + await this.helper.waitForSnapshot(); + await this.helper.vote({ support: Enums.VoteType.For }, { from: voter1 }); + await this.helper.waitForDeadline(); + + expectEvent(await this.helper.execute(), 'VotingDelaySet', { oldVotingDelay: '4', newVotingDelay: '0' }); + + expect(await this.mock.votingDelay()).to.be.bignumber.equal('0'); + }); + + it('can setVotingPeriod through governance', async function () { + this.helper.setProposal( + [ + { + target: this.mock.address, + data: this.mock.contract.methods.setVotingPeriod('32').encodeABI(), + }, + ], + '', + ); + + await this.helper.propose(); + await this.helper.waitForSnapshot(); + await this.helper.vote({ support: Enums.VoteType.For }, { from: voter1 }); + await this.helper.waitForDeadline(); + + expectEvent(await this.helper.execute(), 'VotingPeriodSet', { oldVotingPeriod: '16', newVotingPeriod: '32' }); + + expect(await this.mock.votingPeriod()).to.be.bignumber.equal('32'); + }); + + it('cannot setVotingPeriod to 0 through governance', async function () { + this.helper.setProposal( + [ + { + target: this.mock.address, + data: this.mock.contract.methods.setVotingPeriod('0').encodeABI(), + }, + ], + '', + ); + + await this.helper.propose(); + await this.helper.waitForSnapshot(); + await this.helper.vote({ support: Enums.VoteType.For }, { from: voter1 }); + await this.helper.waitForDeadline(); + + await expectRevert(this.helper.execute(), 'GovernorSettings: voting period too low'); + }); + + it('can setProposalThreshold to 0 through governance', async function () { + this.helper.setProposal( + [ + { + target: this.mock.address, + data: this.mock.contract.methods.setProposalThreshold('1000000000000000000').encodeABI(), + }, + ], + '', + ); + + await this.helper.propose(); + await this.helper.waitForSnapshot(); + await this.helper.vote({ support: Enums.VoteType.For }, { from: voter1 }); + await this.helper.waitForDeadline(); + + expectEvent(await this.helper.execute(), 'ProposalThresholdSet', { + oldProposalThreshold: '0', + newProposalThreshold: '1000000000000000000', + }); + + expect(await this.mock.proposalThreshold()).to.be.bignumber.equal('1000000000000000000'); + }); + }); + + describe('safe receive', function () { + describe('ERC721', function () { + const name = 'Non Fungible Token'; + const symbol = 'NFT'; + const tokenId = new BN(1); + + beforeEach(async function () { + this.token = await ERC721.new(name, symbol); + await this.token.$_mint(owner, tokenId); + }); + + it('can receive an ERC721 safeTransfer', async function () { + await this.token.safeTransferFrom(owner, this.mock.address, tokenId, { from: owner }); + }); + }); + + describe('ERC1155', function () { + const uri = 'https://token-cdn-domain/{id}.json'; + const tokenIds = { + 1: new BN(1000), + 2: new BN(2000), + 3: new BN(3000), + }; + + beforeEach(async function () { + this.token = await ERC1155.new(uri); + await this.token.$_mintBatch(owner, Object.keys(tokenIds), Object.values(tokenIds), '0x'); + }); + + it('can receive ERC1155 safeTransfer', async function () { + await this.token.safeTransferFrom( + owner, + this.mock.address, + ...Object.entries(tokenIds)[0], // id + amount + '0x', + { from: owner }, + ); + }); + + it('can receive ERC1155 safeBatchTransfer', async function () { + await this.token.safeBatchTransferFrom( + owner, + this.mock.address, + Object.keys(tokenIds), + Object.values(tokenIds), + '0x', + { from: owner }, + ); + }); + }); + }); +}); diff --git a/lib/openzeppelin-contracts/test/governance/TimelockController.test.js b/lib/openzeppelin-contracts/test/governance/TimelockController.test.js new file mode 100644 index 0000000..83352ef --- /dev/null +++ b/lib/openzeppelin-contracts/test/governance/TimelockController.test.js @@ -0,0 +1,1076 @@ +const { BN, constants, expectEvent, expectRevert, time } = require('@openzeppelin/test-helpers'); +const { ZERO_ADDRESS, ZERO_BYTES32 } = constants; + +const { expect } = require('chai'); + +const { shouldSupportInterfaces } = require('../utils/introspection/SupportsInterface.behavior'); + +const TimelockController = artifacts.require('TimelockController'); +const CallReceiverMock = artifacts.require('CallReceiverMock'); +const Implementation2 = artifacts.require('Implementation2'); +const ERC721 = artifacts.require('$ERC721'); +const ERC1155 = artifacts.require('$ERC1155'); + +const MINDELAY = time.duration.days(1); + +const salt = '0x025e7b0be353a74631ad648c667493c0e1cd31caa4cc2d3520fdc171ea0cc726'; // a random value + +function genOperation(target, value, data, predecessor, salt) { + const id = web3.utils.keccak256( + web3.eth.abi.encodeParameters( + ['address', 'uint256', 'bytes', 'uint256', 'bytes32'], + [target, value, data, predecessor, salt], + ), + ); + return { id, target, value, data, predecessor, salt }; +} + +function genOperationBatch(targets, values, payloads, predecessor, salt) { + const id = web3.utils.keccak256( + web3.eth.abi.encodeParameters( + ['address[]', 'uint256[]', 'bytes[]', 'uint256', 'bytes32'], + [targets, values, payloads, predecessor, salt], + ), + ); + return { id, targets, values, payloads, predecessor, salt }; +} + +contract('TimelockController', function (accounts) { + const [, admin, proposer, canceller, executor, other] = accounts; + + const TIMELOCK_ADMIN_ROLE = web3.utils.soliditySha3('TIMELOCK_ADMIN_ROLE'); + const PROPOSER_ROLE = web3.utils.soliditySha3('PROPOSER_ROLE'); + const EXECUTOR_ROLE = web3.utils.soliditySha3('EXECUTOR_ROLE'); + const CANCELLER_ROLE = web3.utils.soliditySha3('CANCELLER_ROLE'); + + beforeEach(async function () { + // Deploy new timelock + this.mock = await TimelockController.new(MINDELAY, [proposer], [executor], admin); + + expect(await this.mock.hasRole(CANCELLER_ROLE, proposer)).to.be.equal(true); + await this.mock.revokeRole(CANCELLER_ROLE, proposer, { from: admin }); + await this.mock.grantRole(CANCELLER_ROLE, canceller, { from: admin }); + + // Mocks + this.callreceivermock = await CallReceiverMock.new({ from: admin }); + this.implementation2 = await Implementation2.new({ from: admin }); + }); + + shouldSupportInterfaces(['ERC1155Receiver']); + + it('initial state', async function () { + expect(await this.mock.getMinDelay()).to.be.bignumber.equal(MINDELAY); + + expect(await this.mock.TIMELOCK_ADMIN_ROLE()).to.be.equal(TIMELOCK_ADMIN_ROLE); + expect(await this.mock.PROPOSER_ROLE()).to.be.equal(PROPOSER_ROLE); + expect(await this.mock.EXECUTOR_ROLE()).to.be.equal(EXECUTOR_ROLE); + expect(await this.mock.CANCELLER_ROLE()).to.be.equal(CANCELLER_ROLE); + + expect( + await Promise.all([PROPOSER_ROLE, CANCELLER_ROLE, EXECUTOR_ROLE].map(role => this.mock.hasRole(role, proposer))), + ).to.be.deep.equal([true, false, false]); + + expect( + await Promise.all([PROPOSER_ROLE, CANCELLER_ROLE, EXECUTOR_ROLE].map(role => this.mock.hasRole(role, canceller))), + ).to.be.deep.equal([false, true, false]); + + expect( + await Promise.all([PROPOSER_ROLE, CANCELLER_ROLE, EXECUTOR_ROLE].map(role => this.mock.hasRole(role, executor))), + ).to.be.deep.equal([false, false, true]); + }); + + it('optional admin', async function () { + const mock = await TimelockController.new(MINDELAY, [proposer], [executor], ZERO_ADDRESS, { from: other }); + + expect(await mock.hasRole(TIMELOCK_ADMIN_ROLE, admin)).to.be.equal(false); + expect(await mock.hasRole(TIMELOCK_ADMIN_ROLE, other)).to.be.equal(false); + }); + + describe('methods', function () { + describe('operation hashing', function () { + it('hashOperation', async function () { + this.operation = genOperation( + '0x29cebefe301c6ce1bb36b58654fea275e1cacc83', + '0xf94fdd6e21da21d2', + '0xa3bc5104', + '0xba41db3be0a9929145cfe480bd0f1f003689104d275ae912099f925df424ef94', + '0x60d9109846ab510ed75c15f979ae366a8a2ace11d34ba9788c13ac296db50e6e', + ); + expect( + await this.mock.hashOperation( + this.operation.target, + this.operation.value, + this.operation.data, + this.operation.predecessor, + this.operation.salt, + ), + ).to.be.equal(this.operation.id); + }); + + it('hashOperationBatch', async function () { + this.operation = genOperationBatch( + Array(8).fill('0x2d5f21620e56531c1d59c2df9b8e95d129571f71'), + Array(8).fill('0x2b993cfce932ccee'), + Array(8).fill('0xcf51966b'), + '0xce8f45069cc71d25f71ba05062de1a3974f9849b004de64a70998bca9d29c2e7', + '0x8952d74c110f72bfe5accdf828c74d53a7dfb71235dfa8a1e8c75d8576b372ff', + ); + expect( + await this.mock.hashOperationBatch( + this.operation.targets, + this.operation.values, + this.operation.payloads, + this.operation.predecessor, + this.operation.salt, + ), + ).to.be.equal(this.operation.id); + }); + }); + describe('simple', function () { + describe('schedule', function () { + beforeEach(async function () { + this.operation = genOperation( + '0x31754f590B97fD975Eb86938f18Cc304E264D2F2', + 0, + '0x3bf92ccc', + ZERO_BYTES32, + salt, + ); + }); + + it('proposer can schedule', async function () { + const receipt = await this.mock.schedule( + this.operation.target, + this.operation.value, + this.operation.data, + this.operation.predecessor, + this.operation.salt, + MINDELAY, + { from: proposer }, + ); + expectEvent(receipt, 'CallScheduled', { + id: this.operation.id, + index: web3.utils.toBN(0), + target: this.operation.target, + value: web3.utils.toBN(this.operation.value), + data: this.operation.data, + predecessor: this.operation.predecessor, + delay: MINDELAY, + }); + + const block = await web3.eth.getBlock(receipt.receipt.blockHash); + + expect(await this.mock.getTimestamp(this.operation.id)).to.be.bignumber.equal( + web3.utils.toBN(block.timestamp).add(MINDELAY), + ); + }); + + it('prevent overwriting active operation', async function () { + await this.mock.schedule( + this.operation.target, + this.operation.value, + this.operation.data, + this.operation.predecessor, + this.operation.salt, + MINDELAY, + { from: proposer }, + ); + + await expectRevert( + this.mock.schedule( + this.operation.target, + this.operation.value, + this.operation.data, + this.operation.predecessor, + this.operation.salt, + MINDELAY, + { from: proposer }, + ), + 'TimelockController: operation already scheduled', + ); + }); + + it('prevent non-proposer from committing', async function () { + await expectRevert( + this.mock.schedule( + this.operation.target, + this.operation.value, + this.operation.data, + this.operation.predecessor, + this.operation.salt, + MINDELAY, + { from: other }, + ), + `AccessControl: account ${other.toLowerCase()} is missing role ${PROPOSER_ROLE}`, + ); + }); + + it('enforce minimum delay', async function () { + await expectRevert( + this.mock.schedule( + this.operation.target, + this.operation.value, + this.operation.data, + this.operation.predecessor, + this.operation.salt, + MINDELAY - 1, + { from: proposer }, + ), + 'TimelockController: insufficient delay', + ); + }); + }); + + describe('execute', function () { + beforeEach(async function () { + this.operation = genOperation( + '0xAe22104DCD970750610E6FE15E623468A98b15f7', + 0, + '0x13e414de', + ZERO_BYTES32, + '0xc1059ed2dc130227aa1d1d539ac94c641306905c020436c636e19e3fab56fc7f', + ); + }); + + it('revert if operation is not scheduled', async function () { + await expectRevert( + this.mock.execute( + this.operation.target, + this.operation.value, + this.operation.data, + this.operation.predecessor, + this.operation.salt, + { from: executor }, + ), + 'TimelockController: operation is not ready', + ); + }); + + describe('with scheduled operation', function () { + beforeEach(async function () { + ({ receipt: this.receipt, logs: this.logs } = await this.mock.schedule( + this.operation.target, + this.operation.value, + this.operation.data, + this.operation.predecessor, + this.operation.salt, + MINDELAY, + { from: proposer }, + )); + }); + + it('revert if execution comes too early 1/2', async function () { + await expectRevert( + this.mock.execute( + this.operation.target, + this.operation.value, + this.operation.data, + this.operation.predecessor, + this.operation.salt, + { from: executor }, + ), + 'TimelockController: operation is not ready', + ); + }); + + it('revert if execution comes too early 2/2', async function () { + const timestamp = await this.mock.getTimestamp(this.operation.id); + await time.increaseTo(timestamp - 5); // -1 is too tight, test sometime fails + + await expectRevert( + this.mock.execute( + this.operation.target, + this.operation.value, + this.operation.data, + this.operation.predecessor, + this.operation.salt, + { from: executor }, + ), + 'TimelockController: operation is not ready', + ); + }); + + describe('on time', function () { + beforeEach(async function () { + const timestamp = await this.mock.getTimestamp(this.operation.id); + await time.increaseTo(timestamp); + }); + + it('executor can reveal', async function () { + const receipt = await this.mock.execute( + this.operation.target, + this.operation.value, + this.operation.data, + this.operation.predecessor, + this.operation.salt, + { from: executor }, + ); + expectEvent(receipt, 'CallExecuted', { + id: this.operation.id, + index: web3.utils.toBN(0), + target: this.operation.target, + value: web3.utils.toBN(this.operation.value), + data: this.operation.data, + }); + }); + + it('prevent non-executor from revealing', async function () { + await expectRevert( + this.mock.execute( + this.operation.target, + this.operation.value, + this.operation.data, + this.operation.predecessor, + this.operation.salt, + { from: other }, + ), + `AccessControl: account ${other.toLowerCase()} is missing role ${EXECUTOR_ROLE}`, + ); + }); + }); + }); + }); + }); + + describe('batch', function () { + describe('schedule', function () { + beforeEach(async function () { + this.operation = genOperationBatch( + Array(8).fill('0xEd912250835c812D4516BBD80BdaEA1bB63a293C'), + Array(8).fill(0), + Array(8).fill('0x2fcb7a88'), + ZERO_BYTES32, + '0x6cf9d042ade5de78bed9ffd075eb4b2a4f6b1736932c2dc8af517d6e066f51f5', + ); + }); + + it('proposer can schedule', async function () { + const receipt = await this.mock.scheduleBatch( + this.operation.targets, + this.operation.values, + this.operation.payloads, + this.operation.predecessor, + this.operation.salt, + MINDELAY, + { from: proposer }, + ); + for (const i in this.operation.targets) { + expectEvent(receipt, 'CallScheduled', { + id: this.operation.id, + index: web3.utils.toBN(i), + target: this.operation.targets[i], + value: web3.utils.toBN(this.operation.values[i]), + data: this.operation.payloads[i], + predecessor: this.operation.predecessor, + delay: MINDELAY, + }); + } + + const block = await web3.eth.getBlock(receipt.receipt.blockHash); + + expect(await this.mock.getTimestamp(this.operation.id)).to.be.bignumber.equal( + web3.utils.toBN(block.timestamp).add(MINDELAY), + ); + }); + + it('prevent overwriting active operation', async function () { + await this.mock.scheduleBatch( + this.operation.targets, + this.operation.values, + this.operation.payloads, + this.operation.predecessor, + this.operation.salt, + MINDELAY, + { from: proposer }, + ); + + await expectRevert( + this.mock.scheduleBatch( + this.operation.targets, + this.operation.values, + this.operation.payloads, + this.operation.predecessor, + this.operation.salt, + MINDELAY, + { from: proposer }, + ), + 'TimelockController: operation already scheduled', + ); + }); + + it('length of batch parameter must match #1', async function () { + await expectRevert( + this.mock.scheduleBatch( + this.operation.targets, + [], + this.operation.payloads, + this.operation.predecessor, + this.operation.salt, + MINDELAY, + { from: proposer }, + ), + 'TimelockController: length mismatch', + ); + }); + + it('length of batch parameter must match #1', async function () { + await expectRevert( + this.mock.scheduleBatch( + this.operation.targets, + this.operation.values, + [], + this.operation.predecessor, + this.operation.salt, + MINDELAY, + { from: proposer }, + ), + 'TimelockController: length mismatch', + ); + }); + + it('prevent non-proposer from committing', async function () { + await expectRevert( + this.mock.scheduleBatch( + this.operation.targets, + this.operation.values, + this.operation.payloads, + this.operation.predecessor, + this.operation.salt, + MINDELAY, + { from: other }, + ), + `AccessControl: account ${other.toLowerCase()} is missing role ${PROPOSER_ROLE}`, + ); + }); + + it('enforce minimum delay', async function () { + await expectRevert( + this.mock.scheduleBatch( + this.operation.targets, + this.operation.values, + this.operation.payloads, + this.operation.predecessor, + this.operation.salt, + MINDELAY - 1, + { from: proposer }, + ), + 'TimelockController: insufficient delay', + ); + }); + }); + + describe('execute', function () { + beforeEach(async function () { + this.operation = genOperationBatch( + Array(8).fill('0x76E53CcEb05131Ef5248553bEBDb8F70536830b1'), + Array(8).fill(0), + Array(8).fill('0x58a60f63'), + ZERO_BYTES32, + '0x9545eeabc7a7586689191f78a5532443698538e54211b5bd4d7dc0fc0102b5c7', + ); + }); + + it('revert if operation is not scheduled', async function () { + await expectRevert( + this.mock.executeBatch( + this.operation.targets, + this.operation.values, + this.operation.payloads, + this.operation.predecessor, + this.operation.salt, + { from: executor }, + ), + 'TimelockController: operation is not ready', + ); + }); + + describe('with scheduled operation', function () { + beforeEach(async function () { + ({ receipt: this.receipt, logs: this.logs } = await this.mock.scheduleBatch( + this.operation.targets, + this.operation.values, + this.operation.payloads, + this.operation.predecessor, + this.operation.salt, + MINDELAY, + { from: proposer }, + )); + }); + + it('revert if execution comes too early 1/2', async function () { + await expectRevert( + this.mock.executeBatch( + this.operation.targets, + this.operation.values, + this.operation.payloads, + this.operation.predecessor, + this.operation.salt, + { from: executor }, + ), + 'TimelockController: operation is not ready', + ); + }); + + it('revert if execution comes too early 2/2', async function () { + const timestamp = await this.mock.getTimestamp(this.operation.id); + await time.increaseTo(timestamp - 5); // -1 is to tight, test sometime fails + + await expectRevert( + this.mock.executeBatch( + this.operation.targets, + this.operation.values, + this.operation.payloads, + this.operation.predecessor, + this.operation.salt, + { from: executor }, + ), + 'TimelockController: operation is not ready', + ); + }); + + describe('on time', function () { + beforeEach(async function () { + const timestamp = await this.mock.getTimestamp(this.operation.id); + await time.increaseTo(timestamp); + }); + + it('executor can reveal', async function () { + const receipt = await this.mock.executeBatch( + this.operation.targets, + this.operation.values, + this.operation.payloads, + this.operation.predecessor, + this.operation.salt, + { from: executor }, + ); + for (const i in this.operation.targets) { + expectEvent(receipt, 'CallExecuted', { + id: this.operation.id, + index: web3.utils.toBN(i), + target: this.operation.targets[i], + value: web3.utils.toBN(this.operation.values[i]), + data: this.operation.payloads[i], + }); + } + }); + + it('prevent non-executor from revealing', async function () { + await expectRevert( + this.mock.executeBatch( + this.operation.targets, + this.operation.values, + this.operation.payloads, + this.operation.predecessor, + this.operation.salt, + { from: other }, + ), + `AccessControl: account ${other.toLowerCase()} is missing role ${EXECUTOR_ROLE}`, + ); + }); + + it('length mismatch #1', async function () { + await expectRevert( + this.mock.executeBatch( + [], + this.operation.values, + this.operation.payloads, + this.operation.predecessor, + this.operation.salt, + { from: executor }, + ), + 'TimelockController: length mismatch', + ); + }); + + it('length mismatch #2', async function () { + await expectRevert( + this.mock.executeBatch( + this.operation.targets, + [], + this.operation.payloads, + this.operation.predecessor, + this.operation.salt, + { from: executor }, + ), + 'TimelockController: length mismatch', + ); + }); + + it('length mismatch #3', async function () { + await expectRevert( + this.mock.executeBatch( + this.operation.targets, + this.operation.values, + [], + this.operation.predecessor, + this.operation.salt, + { from: executor }, + ), + 'TimelockController: length mismatch', + ); + }); + }); + }); + + it('partial execution', async function () { + const operation = genOperationBatch( + [this.callreceivermock.address, this.callreceivermock.address, this.callreceivermock.address], + [0, 0, 0], + [ + this.callreceivermock.contract.methods.mockFunction().encodeABI(), + this.callreceivermock.contract.methods.mockFunctionThrows().encodeABI(), + this.callreceivermock.contract.methods.mockFunction().encodeABI(), + ], + ZERO_BYTES32, + '0x8ac04aa0d6d66b8812fb41d39638d37af0a9ab11da507afd65c509f8ed079d3e', + ); + + await this.mock.scheduleBatch( + operation.targets, + operation.values, + operation.payloads, + operation.predecessor, + operation.salt, + MINDELAY, + { from: proposer }, + ); + await time.increase(MINDELAY); + await expectRevert( + this.mock.executeBatch( + operation.targets, + operation.values, + operation.payloads, + operation.predecessor, + operation.salt, + { from: executor }, + ), + 'TimelockController: underlying transaction reverted', + ); + }); + }); + }); + + describe('cancel', function () { + beforeEach(async function () { + this.operation = genOperation( + '0xC6837c44AA376dbe1d2709F13879E040CAb653ca', + 0, + '0x296e58dd', + ZERO_BYTES32, + '0xa2485763600634800df9fc9646fb2c112cf98649c55f63dd1d9c7d13a64399d9', + ); + ({ receipt: this.receipt, logs: this.logs } = await this.mock.schedule( + this.operation.target, + this.operation.value, + this.operation.data, + this.operation.predecessor, + this.operation.salt, + MINDELAY, + { from: proposer }, + )); + }); + + it('canceller can cancel', async function () { + const receipt = await this.mock.cancel(this.operation.id, { from: canceller }); + expectEvent(receipt, 'Cancelled', { id: this.operation.id }); + }); + + it('cannot cancel invalid operation', async function () { + await expectRevert( + this.mock.cancel(constants.ZERO_BYTES32, { from: canceller }), + 'TimelockController: operation cannot be cancelled', + ); + }); + + it('prevent non-canceller from canceling', async function () { + await expectRevert( + this.mock.cancel(this.operation.id, { from: other }), + `AccessControl: account ${other.toLowerCase()} is missing role ${CANCELLER_ROLE}`, + ); + }); + }); + }); + + describe('maintenance', function () { + it('prevent unauthorized maintenance', async function () { + await expectRevert(this.mock.updateDelay(0, { from: other }), 'TimelockController: caller must be timelock'); + }); + + it('timelock scheduled maintenance', async function () { + const newDelay = time.duration.hours(6); + const operation = genOperation( + this.mock.address, + 0, + this.mock.contract.methods.updateDelay(newDelay.toString()).encodeABI(), + ZERO_BYTES32, + '0xf8e775b2c5f4d66fb5c7fa800f35ef518c262b6014b3c0aee6ea21bff157f108', + ); + + await this.mock.schedule( + operation.target, + operation.value, + operation.data, + operation.predecessor, + operation.salt, + MINDELAY, + { from: proposer }, + ); + await time.increase(MINDELAY); + const receipt = await this.mock.execute( + operation.target, + operation.value, + operation.data, + operation.predecessor, + operation.salt, + { from: executor }, + ); + expectEvent(receipt, 'MinDelayChange', { newDuration: newDelay.toString(), oldDuration: MINDELAY }); + + expect(await this.mock.getMinDelay()).to.be.bignumber.equal(newDelay); + }); + }); + + describe('dependency', function () { + beforeEach(async function () { + this.operation1 = genOperation( + '0xdE66bD4c97304200A95aE0AadA32d6d01A867E39', + 0, + '0x01dc731a', + ZERO_BYTES32, + '0x64e932133c7677402ead2926f86205e2ca4686aebecf5a8077627092b9bb2feb', + ); + this.operation2 = genOperation( + '0x3c7944a3F1ee7fc8c5A5134ba7c79D11c3A1FCa3', + 0, + '0x8f531849', + this.operation1.id, + '0x036e1311cac523f9548e6461e29fb1f8f9196b91910a41711ea22f5de48df07d', + ); + await this.mock.schedule( + this.operation1.target, + this.operation1.value, + this.operation1.data, + this.operation1.predecessor, + this.operation1.salt, + MINDELAY, + { from: proposer }, + ); + await this.mock.schedule( + this.operation2.target, + this.operation2.value, + this.operation2.data, + this.operation2.predecessor, + this.operation2.salt, + MINDELAY, + { from: proposer }, + ); + await time.increase(MINDELAY); + }); + + it('cannot execute before dependency', async function () { + await expectRevert( + this.mock.execute( + this.operation2.target, + this.operation2.value, + this.operation2.data, + this.operation2.predecessor, + this.operation2.salt, + { from: executor }, + ), + 'TimelockController: missing dependency', + ); + }); + + it('can execute after dependency', async function () { + await this.mock.execute( + this.operation1.target, + this.operation1.value, + this.operation1.data, + this.operation1.predecessor, + this.operation1.salt, + { from: executor }, + ); + await this.mock.execute( + this.operation2.target, + this.operation2.value, + this.operation2.data, + this.operation2.predecessor, + this.operation2.salt, + { from: executor }, + ); + }); + }); + + describe('usage scenario', function () { + this.timeout(10000); + + it('call', async function () { + const operation = genOperation( + this.implementation2.address, + 0, + this.implementation2.contract.methods.setValue(42).encodeABI(), + ZERO_BYTES32, + '0x8043596363daefc89977b25f9d9b4d06c3910959ef0c4d213557a903e1b555e2', + ); + + await this.mock.schedule( + operation.target, + operation.value, + operation.data, + operation.predecessor, + operation.salt, + MINDELAY, + { from: proposer }, + ); + await time.increase(MINDELAY); + await this.mock.execute( + operation.target, + operation.value, + operation.data, + operation.predecessor, + operation.salt, + { from: executor }, + ); + + expect(await this.implementation2.getValue()).to.be.bignumber.equal(web3.utils.toBN(42)); + }); + + it('call reverting', async function () { + const operation = genOperation( + this.callreceivermock.address, + 0, + this.callreceivermock.contract.methods.mockFunctionRevertsNoReason().encodeABI(), + ZERO_BYTES32, + '0xb1b1b276fdf1a28d1e00537ea73b04d56639128b08063c1a2f70a52e38cba693', + ); + + await this.mock.schedule( + operation.target, + operation.value, + operation.data, + operation.predecessor, + operation.salt, + MINDELAY, + { from: proposer }, + ); + await time.increase(MINDELAY); + await expectRevert( + this.mock.execute(operation.target, operation.value, operation.data, operation.predecessor, operation.salt, { + from: executor, + }), + 'TimelockController: underlying transaction reverted', + ); + }); + + it('call throw', async function () { + const operation = genOperation( + this.callreceivermock.address, + 0, + this.callreceivermock.contract.methods.mockFunctionThrows().encodeABI(), + ZERO_BYTES32, + '0xe5ca79f295fc8327ee8a765fe19afb58f4a0cbc5053642bfdd7e73bc68e0fc67', + ); + + await this.mock.schedule( + operation.target, + operation.value, + operation.data, + operation.predecessor, + operation.salt, + MINDELAY, + { from: proposer }, + ); + await time.increase(MINDELAY); + await expectRevert( + this.mock.execute(operation.target, operation.value, operation.data, operation.predecessor, operation.salt, { + from: executor, + }), + 'TimelockController: underlying transaction reverted', + ); + }); + + it('call out of gas', async function () { + const operation = genOperation( + this.callreceivermock.address, + 0, + this.callreceivermock.contract.methods.mockFunctionOutOfGas().encodeABI(), + ZERO_BYTES32, + '0xf3274ce7c394c5b629d5215723563a744b817e1730cca5587c567099a14578fd', + ); + + await this.mock.schedule( + operation.target, + operation.value, + operation.data, + operation.predecessor, + operation.salt, + MINDELAY, + { from: proposer }, + ); + await time.increase(MINDELAY); + await expectRevert( + this.mock.execute(operation.target, operation.value, operation.data, operation.predecessor, operation.salt, { + from: executor, + gas: '70000', + }), + 'TimelockController: underlying transaction reverted', + ); + }); + + it('call payable with eth', async function () { + const operation = genOperation( + this.callreceivermock.address, + 1, + this.callreceivermock.contract.methods.mockFunction().encodeABI(), + ZERO_BYTES32, + '0x5ab73cd33477dcd36c1e05e28362719d0ed59a7b9ff14939de63a43073dc1f44', + ); + + await this.mock.schedule( + operation.target, + operation.value, + operation.data, + operation.predecessor, + operation.salt, + MINDELAY, + { from: proposer }, + ); + await time.increase(MINDELAY); + + expect(await web3.eth.getBalance(this.mock.address)).to.be.bignumber.equal(web3.utils.toBN(0)); + expect(await web3.eth.getBalance(this.callreceivermock.address)).to.be.bignumber.equal(web3.utils.toBN(0)); + + await this.mock.execute( + operation.target, + operation.value, + operation.data, + operation.predecessor, + operation.salt, + { from: executor, value: 1 }, + ); + + expect(await web3.eth.getBalance(this.mock.address)).to.be.bignumber.equal(web3.utils.toBN(0)); + expect(await web3.eth.getBalance(this.callreceivermock.address)).to.be.bignumber.equal(web3.utils.toBN(1)); + }); + + it('call nonpayable with eth', async function () { + const operation = genOperation( + this.callreceivermock.address, + 1, + this.callreceivermock.contract.methods.mockFunctionNonPayable().encodeABI(), + ZERO_BYTES32, + '0xb78edbd920c7867f187e5aa6294ae5a656cfbf0dea1ccdca3751b740d0f2bdf8', + ); + + await this.mock.schedule( + operation.target, + operation.value, + operation.data, + operation.predecessor, + operation.salt, + MINDELAY, + { from: proposer }, + ); + await time.increase(MINDELAY); + + expect(await web3.eth.getBalance(this.mock.address)).to.be.bignumber.equal(web3.utils.toBN(0)); + expect(await web3.eth.getBalance(this.callreceivermock.address)).to.be.bignumber.equal(web3.utils.toBN(0)); + + await expectRevert( + this.mock.execute(operation.target, operation.value, operation.data, operation.predecessor, operation.salt, { + from: executor, + }), + 'TimelockController: underlying transaction reverted', + ); + + expect(await web3.eth.getBalance(this.mock.address)).to.be.bignumber.equal(web3.utils.toBN(0)); + expect(await web3.eth.getBalance(this.callreceivermock.address)).to.be.bignumber.equal(web3.utils.toBN(0)); + }); + + it('call reverting with eth', async function () { + const operation = genOperation( + this.callreceivermock.address, + 1, + this.callreceivermock.contract.methods.mockFunctionRevertsNoReason().encodeABI(), + ZERO_BYTES32, + '0xdedb4563ef0095db01d81d3f2decf57cf83e4a72aa792af14c43a792b56f4de6', + ); + + await this.mock.schedule( + operation.target, + operation.value, + operation.data, + operation.predecessor, + operation.salt, + MINDELAY, + { from: proposer }, + ); + await time.increase(MINDELAY); + + expect(await web3.eth.getBalance(this.mock.address)).to.be.bignumber.equal(web3.utils.toBN(0)); + expect(await web3.eth.getBalance(this.callreceivermock.address)).to.be.bignumber.equal(web3.utils.toBN(0)); + + await expectRevert( + this.mock.execute(operation.target, operation.value, operation.data, operation.predecessor, operation.salt, { + from: executor, + }), + 'TimelockController: underlying transaction reverted', + ); + + expect(await web3.eth.getBalance(this.mock.address)).to.be.bignumber.equal(web3.utils.toBN(0)); + expect(await web3.eth.getBalance(this.callreceivermock.address)).to.be.bignumber.equal(web3.utils.toBN(0)); + }); + }); + + describe('safe receive', function () { + describe('ERC721', function () { + const name = 'Non Fungible Token'; + const symbol = 'NFT'; + const tokenId = new BN(1); + + beforeEach(async function () { + this.token = await ERC721.new(name, symbol); + await this.token.$_mint(other, tokenId); + }); + + it('can receive an ERC721 safeTransfer', async function () { + await this.token.safeTransferFrom(other, this.mock.address, tokenId, { from: other }); + }); + }); + + describe('ERC1155', function () { + const uri = 'https://token-cdn-domain/{id}.json'; + const tokenIds = { + 1: new BN(1000), + 2: new BN(2000), + 3: new BN(3000), + }; + + beforeEach(async function () { + this.token = await ERC1155.new(uri); + await this.token.$_mintBatch(other, Object.keys(tokenIds), Object.values(tokenIds), '0x'); + }); + + it('can receive ERC1155 safeTransfer', async function () { + await this.token.safeTransferFrom( + other, + this.mock.address, + ...Object.entries(tokenIds)[0], // id + amount + '0x', + { from: other }, + ); + }); + + it('can receive ERC1155 safeBatchTransfer', async function () { + await this.token.safeBatchTransferFrom( + other, + this.mock.address, + Object.keys(tokenIds), + Object.values(tokenIds), + '0x', + { from: other }, + ); + }); + }); + }); +}); diff --git a/lib/openzeppelin-contracts/test/governance/compatibility/GovernorCompatibilityBravo.test.js b/lib/openzeppelin-contracts/test/governance/compatibility/GovernorCompatibilityBravo.test.js new file mode 100644 index 0000000..231d57b --- /dev/null +++ b/lib/openzeppelin-contracts/test/governance/compatibility/GovernorCompatibilityBravo.test.js @@ -0,0 +1,243 @@ +const { BN, expectEvent, expectRevert } = require('@openzeppelin/test-helpers'); +const { expect } = require('chai'); +const RLP = require('rlp'); +const Enums = require('../../helpers/enums'); +const { GovernorHelper } = require('../../helpers/governance'); + +const Token = artifacts.require('$ERC20VotesComp'); +const Timelock = artifacts.require('CompTimelock'); +const Governor = artifacts.require('$GovernorCompatibilityBravoMock'); +const CallReceiver = artifacts.require('CallReceiverMock'); + +function makeContractAddress(creator, nonce) { + return web3.utils.toChecksumAddress( + web3.utils + .sha3(RLP.encode([creator, nonce])) + .slice(12) + .substring(14), + ); +} + +contract('GovernorCompatibilityBravo', function (accounts) { + const [owner, proposer, voter1, voter2, voter3, voter4, other] = accounts; + + const name = 'OZ-Governor'; + // const version = '1'; + const tokenName = 'MockToken'; + const tokenSymbol = 'MTKN'; + const tokenSupply = web3.utils.toWei('100'); + const votingDelay = new BN(4); + const votingPeriod = new BN(16); + const proposalThreshold = web3.utils.toWei('10'); + const value = web3.utils.toWei('1'); + + beforeEach(async function () { + const [deployer] = await web3.eth.getAccounts(); + + this.token = await Token.new(tokenName, tokenSymbol, tokenName); + + // Need to predict governance address to set it as timelock admin with a delayed transfer + const nonce = await web3.eth.getTransactionCount(deployer); + const predictGovernor = makeContractAddress(deployer, nonce + 1); + + this.timelock = await Timelock.new(predictGovernor, 2 * 86400); + this.mock = await Governor.new( + name, + votingDelay, + votingPeriod, + proposalThreshold, + this.timelock.address, + this.token.address, + ); + this.receiver = await CallReceiver.new(); + + this.helper = new GovernorHelper(this.mock); + + await web3.eth.sendTransaction({ from: owner, to: this.timelock.address, value }); + + await this.token.$_mint(owner, tokenSupply); + await this.helper.delegate({ token: this.token, to: proposer, value: proposalThreshold }, { from: owner }); + await this.helper.delegate({ token: this.token, to: voter1, value: web3.utils.toWei('10') }, { from: owner }); + await this.helper.delegate({ token: this.token, to: voter2, value: web3.utils.toWei('7') }, { from: owner }); + await this.helper.delegate({ token: this.token, to: voter3, value: web3.utils.toWei('5') }, { from: owner }); + await this.helper.delegate({ token: this.token, to: voter4, value: web3.utils.toWei('2') }, { from: owner }); + + // default proposal + this.proposal = this.helper.setProposal( + [ + { + target: this.receiver.address, + value, + signature: 'mockFunction()', + }, + ], + '', + ); + }); + + it('deployment check', async function () { + expect(await this.mock.name()).to.be.equal(name); + expect(await this.mock.token()).to.be.equal(this.token.address); + expect(await this.mock.votingDelay()).to.be.bignumber.equal(votingDelay); + expect(await this.mock.votingPeriod()).to.be.bignumber.equal(votingPeriod); + expect(await this.mock.quorum(0)).to.be.bignumber.equal('0'); + expect(await this.mock.quorumVotes()).to.be.bignumber.equal('0'); + expect(await this.mock.COUNTING_MODE()).to.be.equal('support=bravo&quorum=bravo'); + }); + + it('nominal workflow', async function () { + // Before + expect(await this.mock.hasVoted(this.proposal.id, owner)).to.be.equal(false); + expect(await this.mock.hasVoted(this.proposal.id, voter1)).to.be.equal(false); + expect(await this.mock.hasVoted(this.proposal.id, voter2)).to.be.equal(false); + expect(await web3.eth.getBalance(this.mock.address)).to.be.bignumber.equal('0'); + expect(await web3.eth.getBalance(this.timelock.address)).to.be.bignumber.equal(value); + expect(await web3.eth.getBalance(this.receiver.address)).to.be.bignumber.equal('0'); + + // Run proposal + const txPropose = await this.helper.propose({ from: proposer }); + await this.helper.waitForSnapshot(); + await this.helper.vote({ support: Enums.VoteType.For, reason: 'This is nice' }, { from: voter1 }); + await this.helper.vote({ support: Enums.VoteType.For }, { from: voter2 }); + await this.helper.vote({ support: Enums.VoteType.Against }, { from: voter3 }); + await this.helper.vote({ support: Enums.VoteType.Abstain }, { from: voter4 }); + await this.helper.waitForDeadline(); + await this.helper.queue(); + await this.helper.waitForEta(); + const txExecute = await this.helper.execute(); + + // After + expect(await this.mock.hasVoted(this.proposal.id, owner)).to.be.equal(false); + expect(await this.mock.hasVoted(this.proposal.id, voter1)).to.be.equal(true); + expect(await this.mock.hasVoted(this.proposal.id, voter2)).to.be.equal(true); + expect(await web3.eth.getBalance(this.mock.address)).to.be.bignumber.equal('0'); + expect(await web3.eth.getBalance(this.timelock.address)).to.be.bignumber.equal('0'); + expect(await web3.eth.getBalance(this.receiver.address)).to.be.bignumber.equal(value); + + const proposal = await this.mock.proposals(this.proposal.id); + expect(proposal.id).to.be.bignumber.equal(this.proposal.id); + expect(proposal.proposer).to.be.equal(proposer); + expect(proposal.eta).to.be.bignumber.equal(await this.mock.proposalEta(this.proposal.id)); + expect(proposal.startBlock).to.be.bignumber.equal(await this.mock.proposalSnapshot(this.proposal.id)); + expect(proposal.endBlock).to.be.bignumber.equal(await this.mock.proposalDeadline(this.proposal.id)); + expect(proposal.canceled).to.be.equal(false); + expect(proposal.executed).to.be.equal(true); + + const action = await this.mock.getActions(this.proposal.id); + expect(action.targets).to.be.deep.equal(this.proposal.targets); + // expect(action.values).to.be.deep.equal(this.proposal.values); + expect(action.signatures).to.be.deep.equal(this.proposal.signatures); + expect(action.calldatas).to.be.deep.equal(this.proposal.data); + + const voteReceipt1 = await this.mock.getReceipt(this.proposal.id, voter1); + expect(voteReceipt1.hasVoted).to.be.equal(true); + expect(voteReceipt1.support).to.be.bignumber.equal(Enums.VoteType.For); + expect(voteReceipt1.votes).to.be.bignumber.equal(web3.utils.toWei('10')); + + const voteReceipt2 = await this.mock.getReceipt(this.proposal.id, voter2); + expect(voteReceipt2.hasVoted).to.be.equal(true); + expect(voteReceipt2.support).to.be.bignumber.equal(Enums.VoteType.For); + expect(voteReceipt2.votes).to.be.bignumber.equal(web3.utils.toWei('7')); + + const voteReceipt3 = await this.mock.getReceipt(this.proposal.id, voter3); + expect(voteReceipt3.hasVoted).to.be.equal(true); + expect(voteReceipt3.support).to.be.bignumber.equal(Enums.VoteType.Against); + expect(voteReceipt3.votes).to.be.bignumber.equal(web3.utils.toWei('5')); + + const voteReceipt4 = await this.mock.getReceipt(this.proposal.id, voter4); + expect(voteReceipt4.hasVoted).to.be.equal(true); + expect(voteReceipt4.support).to.be.bignumber.equal(Enums.VoteType.Abstain); + expect(voteReceipt4.votes).to.be.bignumber.equal(web3.utils.toWei('2')); + + expectEvent(txPropose, 'ProposalCreated', { + proposalId: this.proposal.id, + proposer, + targets: this.proposal.targets, + // values: this.proposal.values, + signatures: this.proposal.signatures.map(() => ''), // this event doesn't contain the proposal detail + calldatas: this.proposal.fulldata, + startBlock: new BN(txPropose.receipt.blockNumber).add(votingDelay), + endBlock: new BN(txPropose.receipt.blockNumber).add(votingDelay).add(votingPeriod), + description: this.proposal.description, + }); + expectEvent(txExecute, 'ProposalExecuted', { proposalId: this.proposal.id }); + await expectEvent.inTransaction(txExecute.tx, this.receiver, 'MockFunctionCalled'); + }); + + it('double voting is forbidden', async function () { + await this.helper.propose({ from: proposer }); + await this.helper.waitForSnapshot(); + await this.helper.vote({ support: Enums.VoteType.For }, { from: voter1 }); + await expectRevert( + this.helper.vote({ support: Enums.VoteType.For }, { from: voter1 }), + 'GovernorCompatibilityBravo: vote already cast', + ); + }); + + it('with function selector and arguments', async function () { + const target = this.receiver.address; + this.helper.setProposal( + [ + { target, data: this.receiver.contract.methods.mockFunction().encodeABI() }, + { target, data: this.receiver.contract.methods.mockFunctionWithArgs(17, 42).encodeABI() }, + { target, signature: 'mockFunctionNonPayable()' }, + { + target, + signature: 'mockFunctionWithArgs(uint256,uint256)', + data: web3.eth.abi.encodeParameters(['uint256', 'uint256'], [18, 43]), + }, + ], + '', + ); + + await this.helper.propose({ from: proposer }); + await this.helper.waitForSnapshot(); + await this.helper.vote({ support: Enums.VoteType.For, reason: 'This is nice' }, { from: voter1 }); + await this.helper.waitForDeadline(); + await this.helper.queue(); + await this.helper.waitForEta(); + const txExecute = await this.helper.execute(); + + await expectEvent.inTransaction(txExecute.tx, this.receiver, 'MockFunctionCalled'); + await expectEvent.inTransaction(txExecute.tx, this.receiver, 'MockFunctionCalled'); + await expectEvent.inTransaction(txExecute.tx, this.receiver, 'MockFunctionCalledWithArgs', { a: '17', b: '42' }); + await expectEvent.inTransaction(txExecute.tx, this.receiver, 'MockFunctionCalledWithArgs', { a: '18', b: '43' }); + }); + + describe('should revert', function () { + describe('on propose', function () { + it('if proposal does not meet proposalThreshold', async function () { + await expectRevert(this.helper.propose({ from: other }), 'Governor: proposer votes below proposal threshold'); + }); + }); + + describe('on vote', function () { + it('if vote type is invalide', async function () { + await this.helper.propose({ from: proposer }); + await this.helper.waitForSnapshot(); + await expectRevert( + this.helper.vote({ support: 5 }, { from: voter1 }), + 'GovernorCompatibilityBravo: invalid vote type', + ); + }); + }); + }); + + describe('cancel', function () { + it('proposer can cancel', async function () { + await this.helper.propose({ from: proposer }); + await this.helper.cancel({ from: proposer }); + }); + + it('anyone can cancel if proposer drop below threshold', async function () { + await this.helper.propose({ from: proposer }); + await this.token.transfer(voter1, web3.utils.toWei('1'), { from: proposer }); + await this.helper.cancel(); + }); + + it('cannot cancel is proposer is still above threshold', async function () { + await this.helper.propose({ from: proposer }); + await expectRevert(this.helper.cancel(), 'GovernorBravo: proposer above threshold'); + }); + }); +}); diff --git a/lib/openzeppelin-contracts/test/governance/extensions/GovernorComp.test.js b/lib/openzeppelin-contracts/test/governance/extensions/GovernorComp.test.js new file mode 100644 index 0000000..8d48b4d --- /dev/null +++ b/lib/openzeppelin-contracts/test/governance/extensions/GovernorComp.test.js @@ -0,0 +1,81 @@ +const { BN } = require('@openzeppelin/test-helpers'); +const { expect } = require('chai'); +const Enums = require('../../helpers/enums'); +const { GovernorHelper } = require('../../helpers/governance'); + +const Token = artifacts.require('$ERC20VotesComp'); +const Governor = artifacts.require('$GovernorCompMock'); +const CallReceiver = artifacts.require('CallReceiverMock'); + +contract('GovernorComp', function (accounts) { + const [owner, voter1, voter2, voter3, voter4] = accounts; + + const name = 'OZ-Governor'; + // const version = '1'; + const tokenName = 'MockToken'; + const tokenSymbol = 'MTKN'; + const tokenSupply = web3.utils.toWei('100'); + const votingDelay = new BN(4); + const votingPeriod = new BN(16); + const value = web3.utils.toWei('1'); + + beforeEach(async function () { + this.owner = owner; + this.token = await Token.new(tokenName, tokenSymbol, tokenName); + this.mock = await Governor.new(name, this.token.address); + this.receiver = await CallReceiver.new(); + + this.helper = new GovernorHelper(this.mock); + + await web3.eth.sendTransaction({ from: owner, to: this.mock.address, value }); + + await this.token.$_mint(owner, tokenSupply); + await this.helper.delegate({ token: this.token, to: voter1, value: web3.utils.toWei('10') }, { from: owner }); + await this.helper.delegate({ token: this.token, to: voter2, value: web3.utils.toWei('7') }, { from: owner }); + await this.helper.delegate({ token: this.token, to: voter3, value: web3.utils.toWei('5') }, { from: owner }); + await this.helper.delegate({ token: this.token, to: voter4, value: web3.utils.toWei('2') }, { from: owner }); + + // default proposal + this.proposal = this.helper.setProposal( + [ + { + target: this.receiver.address, + value, + data: this.receiver.contract.methods.mockFunction().encodeABI(), + }, + ], + '', + ); + }); + + it('deployment check', async function () { + expect(await this.mock.name()).to.be.equal(name); + expect(await this.mock.token()).to.be.equal(this.token.address); + expect(await this.mock.votingDelay()).to.be.bignumber.equal(votingDelay); + expect(await this.mock.votingPeriod()).to.be.bignumber.equal(votingPeriod); + expect(await this.mock.quorum(0)).to.be.bignumber.equal('0'); + }); + + it('voting with comp token', async function () { + await this.helper.propose(); + await this.helper.waitForSnapshot(); + await this.helper.vote({ support: Enums.VoteType.For }, { from: voter1 }); + await this.helper.vote({ support: Enums.VoteType.For }, { from: voter2 }); + await this.helper.vote({ support: Enums.VoteType.Against }, { from: voter3 }); + await this.helper.vote({ support: Enums.VoteType.Abstain }, { from: voter4 }); + await this.helper.waitForDeadline(); + await this.helper.execute(); + + expect(await this.mock.hasVoted(this.proposal.id, owner)).to.be.equal(false); + expect(await this.mock.hasVoted(this.proposal.id, voter1)).to.be.equal(true); + expect(await this.mock.hasVoted(this.proposal.id, voter2)).to.be.equal(true); + expect(await this.mock.hasVoted(this.proposal.id, voter3)).to.be.equal(true); + expect(await this.mock.hasVoted(this.proposal.id, voter4)).to.be.equal(true); + + await this.mock.proposalVotes(this.proposal.id).then(results => { + expect(results.forVotes).to.be.bignumber.equal(web3.utils.toWei('17')); + expect(results.againstVotes).to.be.bignumber.equal(web3.utils.toWei('5')); + expect(results.abstainVotes).to.be.bignumber.equal(web3.utils.toWei('2')); + }); + }); +}); diff --git a/lib/openzeppelin-contracts/test/governance/extensions/GovernorERC721.test.js b/lib/openzeppelin-contracts/test/governance/extensions/GovernorERC721.test.js new file mode 100644 index 0000000..b0babbd --- /dev/null +++ b/lib/openzeppelin-contracts/test/governance/extensions/GovernorERC721.test.js @@ -0,0 +1,107 @@ +const { BN, expectEvent } = require('@openzeppelin/test-helpers'); +const { expect } = require('chai'); +const Enums = require('../../helpers/enums'); +const { GovernorHelper } = require('../../helpers/governance'); + +const Token = artifacts.require('$ERC721Votes'); +const Governor = artifacts.require('$GovernorVoteMocks'); +const CallReceiver = artifacts.require('CallReceiverMock'); + +contract('GovernorERC721', function (accounts) { + const [owner, voter1, voter2, voter3, voter4] = accounts; + + const name = 'OZ-Governor'; + // const version = '1'; + const tokenName = 'MockNFToken'; + const tokenSymbol = 'MTKN'; + const NFT0 = new BN(0); + const NFT1 = new BN(1); + const NFT2 = new BN(2); + const NFT3 = new BN(3); + const NFT4 = new BN(4); + const votingDelay = new BN(4); + const votingPeriod = new BN(16); + const value = web3.utils.toWei('1'); + + beforeEach(async function () { + this.owner = owner; + this.token = await Token.new(tokenName, tokenSymbol, tokenName, '1'); + this.mock = await Governor.new(name, this.token.address); + this.receiver = await CallReceiver.new(); + + this.helper = new GovernorHelper(this.mock); + + await web3.eth.sendTransaction({ from: owner, to: this.mock.address, value }); + + await Promise.all([NFT0, NFT1, NFT2, NFT3, NFT4].map(tokenId => this.token.$_mint(owner, tokenId))); + await this.helper.delegate({ token: this.token, to: voter1, tokenId: NFT0 }, { from: owner }); + await this.helper.delegate({ token: this.token, to: voter2, tokenId: NFT1 }, { from: owner }); + await this.helper.delegate({ token: this.token, to: voter2, tokenId: NFT2 }, { from: owner }); + await this.helper.delegate({ token: this.token, to: voter3, tokenId: NFT3 }, { from: owner }); + await this.helper.delegate({ token: this.token, to: voter4, tokenId: NFT4 }, { from: owner }); + + // default proposal + this.proposal = this.helper.setProposal( + [ + { + target: this.receiver.address, + value, + data: this.receiver.contract.methods.mockFunction().encodeABI(), + }, + ], + '', + ); + }); + + it('deployment check', async function () { + expect(await this.mock.name()).to.be.equal(name); + expect(await this.mock.token()).to.be.equal(this.token.address); + expect(await this.mock.votingDelay()).to.be.bignumber.equal(votingDelay); + expect(await this.mock.votingPeriod()).to.be.bignumber.equal(votingPeriod); + expect(await this.mock.quorum(0)).to.be.bignumber.equal('0'); + }); + + it('voting with ERC721 token', async function () { + await this.helper.propose(); + await this.helper.waitForSnapshot(); + + expectEvent(await this.helper.vote({ support: Enums.VoteType.For }, { from: voter1 }), 'VoteCast', { + voter: voter1, + support: Enums.VoteType.For, + weight: '1', + }); + + expectEvent(await this.helper.vote({ support: Enums.VoteType.For }, { from: voter2 }), 'VoteCast', { + voter: voter2, + support: Enums.VoteType.For, + weight: '2', + }); + + expectEvent(await this.helper.vote({ support: Enums.VoteType.Against }, { from: voter3 }), 'VoteCast', { + voter: voter3, + support: Enums.VoteType.Against, + weight: '1', + }); + + expectEvent(await this.helper.vote({ support: Enums.VoteType.Abstain }, { from: voter4 }), 'VoteCast', { + voter: voter4, + support: Enums.VoteType.Abstain, + weight: '1', + }); + + await this.helper.waitForDeadline(); + await this.helper.execute(); + + expect(await this.mock.hasVoted(this.proposal.id, owner)).to.be.equal(false); + expect(await this.mock.hasVoted(this.proposal.id, voter1)).to.be.equal(true); + expect(await this.mock.hasVoted(this.proposal.id, voter2)).to.be.equal(true); + expect(await this.mock.hasVoted(this.proposal.id, voter3)).to.be.equal(true); + expect(await this.mock.hasVoted(this.proposal.id, voter4)).to.be.equal(true); + + await this.mock.proposalVotes(this.proposal.id).then(results => { + expect(results.forVotes).to.be.bignumber.equal('3'); + expect(results.againstVotes).to.be.bignumber.equal('1'); + expect(results.abstainVotes).to.be.bignumber.equal('1'); + }); + }); +}); diff --git a/lib/openzeppelin-contracts/test/governance/extensions/GovernorPreventLateQuorum.test.js b/lib/openzeppelin-contracts/test/governance/extensions/GovernorPreventLateQuorum.test.js new file mode 100644 index 0000000..ffec8ac --- /dev/null +++ b/lib/openzeppelin-contracts/test/governance/extensions/GovernorPreventLateQuorum.test.js @@ -0,0 +1,172 @@ +const { BN, expectEvent, expectRevert } = require('@openzeppelin/test-helpers'); +const { expect } = require('chai'); +const Enums = require('../../helpers/enums'); +const { GovernorHelper } = require('../../helpers/governance'); + +const Token = artifacts.require('$ERC20VotesComp'); +const Governor = artifacts.require('$GovernorPreventLateQuorumMock'); +const CallReceiver = artifacts.require('CallReceiverMock'); + +contract('GovernorPreventLateQuorum', function (accounts) { + const [owner, proposer, voter1, voter2, voter3, voter4] = accounts; + + const name = 'OZ-Governor'; + // const version = '1'; + const tokenName = 'MockToken'; + const tokenSymbol = 'MTKN'; + const tokenSupply = web3.utils.toWei('100'); + const votingDelay = new BN(4); + const votingPeriod = new BN(16); + const lateQuorumVoteExtension = new BN(8); + const quorum = web3.utils.toWei('1'); + const value = web3.utils.toWei('1'); + + beforeEach(async function () { + this.owner = owner; + this.token = await Token.new(tokenName, tokenSymbol, tokenName); + this.mock = await Governor.new( + name, + votingDelay, + votingPeriod, + 0, + this.token.address, + lateQuorumVoteExtension, + quorum, + ); + this.receiver = await CallReceiver.new(); + + this.helper = new GovernorHelper(this.mock); + + await web3.eth.sendTransaction({ from: owner, to: this.mock.address, value }); + + await this.token.$_mint(owner, tokenSupply); + await this.helper.delegate({ token: this.token, to: voter1, value: web3.utils.toWei('10') }, { from: owner }); + await this.helper.delegate({ token: this.token, to: voter2, value: web3.utils.toWei('7') }, { from: owner }); + await this.helper.delegate({ token: this.token, to: voter3, value: web3.utils.toWei('5') }, { from: owner }); + await this.helper.delegate({ token: this.token, to: voter4, value: web3.utils.toWei('2') }, { from: owner }); + + // default proposal + this.proposal = this.helper.setProposal( + [ + { + target: this.receiver.address, + value, + data: this.receiver.contract.methods.mockFunction().encodeABI(), + }, + ], + '', + ); + }); + + it('deployment check', async function () { + expect(await this.mock.name()).to.be.equal(name); + expect(await this.mock.token()).to.be.equal(this.token.address); + expect(await this.mock.votingDelay()).to.be.bignumber.equal(votingDelay); + expect(await this.mock.votingPeriod()).to.be.bignumber.equal(votingPeriod); + expect(await this.mock.quorum(0)).to.be.bignumber.equal(quorum); + expect(await this.mock.lateQuorumVoteExtension()).to.be.bignumber.equal(lateQuorumVoteExtension); + }); + + it('nominal workflow unaffected', async function () { + const txPropose = await this.helper.propose({ from: proposer }); + await this.helper.waitForSnapshot(); + await this.helper.vote({ support: Enums.VoteType.For }, { from: voter1 }); + await this.helper.vote({ support: Enums.VoteType.For }, { from: voter2 }); + await this.helper.vote({ support: Enums.VoteType.Against }, { from: voter3 }); + await this.helper.vote({ support: Enums.VoteType.Abstain }, { from: voter4 }); + await this.helper.waitForDeadline(); + await this.helper.execute(); + + expect(await this.mock.hasVoted(this.proposal.id, owner)).to.be.equal(false); + expect(await this.mock.hasVoted(this.proposal.id, voter1)).to.be.equal(true); + expect(await this.mock.hasVoted(this.proposal.id, voter2)).to.be.equal(true); + expect(await this.mock.hasVoted(this.proposal.id, voter3)).to.be.equal(true); + expect(await this.mock.hasVoted(this.proposal.id, voter4)).to.be.equal(true); + + await this.mock.proposalVotes(this.proposal.id).then(results => { + expect(results.forVotes).to.be.bignumber.equal(web3.utils.toWei('17')); + expect(results.againstVotes).to.be.bignumber.equal(web3.utils.toWei('5')); + expect(results.abstainVotes).to.be.bignumber.equal(web3.utils.toWei('2')); + }); + + const startBlock = new BN(txPropose.receipt.blockNumber).add(votingDelay); + const endBlock = new BN(txPropose.receipt.blockNumber).add(votingDelay).add(votingPeriod); + expect(await this.mock.proposalSnapshot(this.proposal.id)).to.be.bignumber.equal(startBlock); + expect(await this.mock.proposalDeadline(this.proposal.id)).to.be.bignumber.equal(endBlock); + + expectEvent(txPropose, 'ProposalCreated', { + proposalId: this.proposal.id, + proposer, + targets: this.proposal.targets, + // values: this.proposal.values.map(value => new BN(value)), + signatures: this.proposal.signatures, + calldatas: this.proposal.data, + startBlock, + endBlock, + description: this.proposal.description, + }); + }); + + it('Delay is extended to prevent last minute take-over', async function () { + const txPropose = await this.helper.propose({ from: proposer }); + + // compute original schedule + const startBlock = new BN(txPropose.receipt.blockNumber).add(votingDelay); + const endBlock = new BN(txPropose.receipt.blockNumber).add(votingDelay).add(votingPeriod); + expect(await this.mock.proposalSnapshot(this.proposal.id)).to.be.bignumber.equal(startBlock); + expect(await this.mock.proposalDeadline(this.proposal.id)).to.be.bignumber.equal(endBlock); + + // wait for the last minute to vote + await this.helper.waitForDeadline(-1); + const txVote = await this.helper.vote({ support: Enums.VoteType.For }, { from: voter2 }); + + // cannot execute yet + expect(await this.mock.state(this.proposal.id)).to.be.bignumber.equal(Enums.ProposalState.Active); + + // compute new extended schedule + const extendedDeadline = new BN(txVote.receipt.blockNumber).add(lateQuorumVoteExtension); + expect(await this.mock.proposalSnapshot(this.proposal.id)).to.be.bignumber.equal(startBlock); + expect(await this.mock.proposalDeadline(this.proposal.id)).to.be.bignumber.equal(extendedDeadline); + + // still possible to vote + await this.helper.vote({ support: Enums.VoteType.Against }, { from: voter1 }); + + await this.helper.waitForDeadline(); + expect(await this.mock.state(this.proposal.id)).to.be.bignumber.equal(Enums.ProposalState.Active); + await this.helper.waitForDeadline(+1); + expect(await this.mock.state(this.proposal.id)).to.be.bignumber.equal(Enums.ProposalState.Defeated); + + // check extension event + expectEvent(txVote, 'ProposalExtended', { proposalId: this.proposal.id, extendedDeadline }); + }); + + describe('onlyGovernance updates', function () { + it('setLateQuorumVoteExtension is protected', async function () { + await expectRevert(this.mock.setLateQuorumVoteExtension(0), 'Governor: onlyGovernance'); + }); + + it('can setLateQuorumVoteExtension through governance', async function () { + this.helper.setProposal( + [ + { + target: this.mock.address, + data: this.mock.contract.methods.setLateQuorumVoteExtension('0').encodeABI(), + }, + ], + '', + ); + + await this.helper.propose(); + await this.helper.waitForSnapshot(); + await this.helper.vote({ support: Enums.VoteType.For }, { from: voter1 }); + await this.helper.waitForDeadline(); + + expectEvent(await this.helper.execute(), 'LateQuorumVoteExtensionSet', { + oldVoteExtension: lateQuorumVoteExtension, + newVoteExtension: '0', + }); + + expect(await this.mock.lateQuorumVoteExtension()).to.be.bignumber.equal('0'); + }); + }); +}); diff --git a/lib/openzeppelin-contracts/test/governance/extensions/GovernorTimelockCompound.test.js b/lib/openzeppelin-contracts/test/governance/extensions/GovernorTimelockCompound.test.js new file mode 100644 index 0000000..334659e --- /dev/null +++ b/lib/openzeppelin-contracts/test/governance/extensions/GovernorTimelockCompound.test.js @@ -0,0 +1,333 @@ +const { BN, constants, expectEvent, expectRevert } = require('@openzeppelin/test-helpers'); +const { expect } = require('chai'); +const RLP = require('rlp'); +const Enums = require('../../helpers/enums'); +const { GovernorHelper } = require('../../helpers/governance'); + +const { shouldSupportInterfaces } = require('../../utils/introspection/SupportsInterface.behavior'); + +const Token = artifacts.require('$ERC20Votes'); +const Timelock = artifacts.require('CompTimelock'); +const Governor = artifacts.require('$GovernorTimelockCompoundMock'); +const CallReceiver = artifacts.require('CallReceiverMock'); + +function makeContractAddress(creator, nonce) { + return web3.utils.toChecksumAddress( + web3.utils + .sha3(RLP.encode([creator, nonce])) + .slice(12) + .substring(14), + ); +} + +contract('GovernorTimelockCompound', function (accounts) { + const [owner, voter1, voter2, voter3, voter4, other] = accounts; + + const name = 'OZ-Governor'; + // const version = '1'; + const tokenName = 'MockToken'; + const tokenSymbol = 'MTKN'; + const tokenSupply = web3.utils.toWei('100'); + const votingDelay = new BN(4); + const votingPeriod = new BN(16); + const value = web3.utils.toWei('1'); + + beforeEach(async function () { + const [deployer] = await web3.eth.getAccounts(); + + this.token = await Token.new(tokenName, tokenSymbol, tokenName); + + // Need to predict governance address to set it as timelock admin with a delayed transfer + const nonce = await web3.eth.getTransactionCount(deployer); + const predictGovernor = makeContractAddress(deployer, nonce + 1); + + this.timelock = await Timelock.new(predictGovernor, 2 * 86400); + this.mock = await Governor.new(name, votingDelay, votingPeriod, 0, this.timelock.address, this.token.address, 0); + this.receiver = await CallReceiver.new(); + + this.helper = new GovernorHelper(this.mock); + + await web3.eth.sendTransaction({ from: owner, to: this.timelock.address, value }); + + await this.token.$_mint(owner, tokenSupply); + await this.helper.delegate({ token: this.token, to: voter1, value: web3.utils.toWei('10') }, { from: owner }); + await this.helper.delegate({ token: this.token, to: voter2, value: web3.utils.toWei('7') }, { from: owner }); + await this.helper.delegate({ token: this.token, to: voter3, value: web3.utils.toWei('5') }, { from: owner }); + await this.helper.delegate({ token: this.token, to: voter4, value: web3.utils.toWei('2') }, { from: owner }); + + // default proposal + this.proposal = this.helper.setProposal( + [ + { + target: this.receiver.address, + value, + data: this.receiver.contract.methods.mockFunction().encodeABI(), + }, + ], + '', + ); + }); + + shouldSupportInterfaces(['ERC165', 'Governor', 'GovernorWithParams', 'GovernorTimelock']); + + it("doesn't accept ether transfers", async function () { + await expectRevert.unspecified(web3.eth.sendTransaction({ from: owner, to: this.mock.address, value: 1 })); + }); + + it('post deployment check', async function () { + expect(await this.mock.name()).to.be.equal(name); + expect(await this.mock.token()).to.be.equal(this.token.address); + expect(await this.mock.votingDelay()).to.be.bignumber.equal(votingDelay); + expect(await this.mock.votingPeriod()).to.be.bignumber.equal(votingPeriod); + expect(await this.mock.quorum(0)).to.be.bignumber.equal('0'); + + expect(await this.mock.timelock()).to.be.equal(this.timelock.address); + expect(await this.timelock.admin()).to.be.equal(this.mock.address); + }); + + it('nominal', async function () { + await this.helper.propose(); + await this.helper.waitForSnapshot(); + await this.helper.vote({ support: Enums.VoteType.For }, { from: voter1 }); + await this.helper.vote({ support: Enums.VoteType.For }, { from: voter2 }); + await this.helper.vote({ support: Enums.VoteType.Against }, { from: voter3 }); + await this.helper.vote({ support: Enums.VoteType.Abstain }, { from: voter4 }); + await this.helper.waitForDeadline(); + const txQueue = await this.helper.queue(); + const eta = await this.mock.proposalEta(this.proposal.id); + await this.helper.waitForEta(); + const txExecute = await this.helper.execute(); + + expectEvent(txQueue, 'ProposalQueued', { proposalId: this.proposal.id }); + await expectEvent.inTransaction(txQueue.tx, this.timelock, 'QueueTransaction', { eta }); + + expectEvent(txExecute, 'ProposalExecuted', { proposalId: this.proposal.id }); + await expectEvent.inTransaction(txExecute.tx, this.timelock, 'ExecuteTransaction', { eta }); + await expectEvent.inTransaction(txExecute.tx, this.receiver, 'MockFunctionCalled'); + }); + + describe('should revert', function () { + describe('on queue', function () { + it('if already queued', async function () { + await this.helper.propose(); + await this.helper.waitForSnapshot(); + await this.helper.vote({ support: Enums.VoteType.For }, { from: voter1 }); + await this.helper.waitForDeadline(); + await this.helper.queue(); + await expectRevert(this.helper.queue(), 'Governor: proposal not successful'); + }); + + it('if proposal contains duplicate calls', async function () { + const action = { + target: this.token.address, + data: this.token.contract.methods.approve(this.receiver.address, constants.MAX_UINT256).encodeABI(), + }; + this.helper.setProposal([action, action], ''); + + await this.helper.propose(); + await this.helper.waitForSnapshot(); + await this.helper.vote({ support: Enums.VoteType.For }, { from: voter1 }); + await this.helper.waitForDeadline(); + await expectRevert(this.helper.queue(), 'GovernorTimelockCompound: identical proposal action already queued'); + await expectRevert(this.helper.execute(), 'GovernorTimelockCompound: proposal not yet queued'); + }); + }); + + describe('on execute', function () { + it('if not queued', async function () { + await this.helper.propose(); + await this.helper.waitForSnapshot(); + await this.helper.vote({ support: Enums.VoteType.For }, { from: voter1 }); + await this.helper.waitForDeadline(+1); + + expect(await this.mock.state(this.proposal.id)).to.be.bignumber.equal(Enums.ProposalState.Succeeded); + + await expectRevert(this.helper.execute(), 'GovernorTimelockCompound: proposal not yet queued'); + }); + + it('if too early', async function () { + await this.helper.propose(); + await this.helper.waitForSnapshot(); + await this.helper.vote({ support: Enums.VoteType.For }, { from: voter1 }); + await this.helper.waitForDeadline(); + await this.helper.queue(); + + expect(await this.mock.state(this.proposal.id)).to.be.bignumber.equal(Enums.ProposalState.Queued); + + await expectRevert( + this.helper.execute(), + "Timelock::executeTransaction: Transaction hasn't surpassed time lock", + ); + }); + + it('if too late', async function () { + await this.helper.propose(); + await this.helper.waitForSnapshot(); + await this.helper.vote({ support: Enums.VoteType.For }, { from: voter1 }); + await this.helper.waitForDeadline(); + await this.helper.queue(); + await this.helper.waitForEta(+30 * 86400); + + expect(await this.mock.state(this.proposal.id)).to.be.bignumber.equal(Enums.ProposalState.Expired); + + await expectRevert(this.helper.execute(), 'Governor: proposal not successful'); + }); + + it('if already executed', async function () { + await this.helper.propose(); + await this.helper.waitForSnapshot(); + await this.helper.vote({ support: Enums.VoteType.For }, { from: voter1 }); + await this.helper.waitForDeadline(); + await this.helper.queue(); + await this.helper.waitForEta(); + await this.helper.execute(); + await expectRevert(this.helper.execute(), 'Governor: proposal not successful'); + }); + }); + }); + + describe('cancel', function () { + it('cancel before queue prevents scheduling', async function () { + await this.helper.propose(); + await this.helper.waitForSnapshot(); + await this.helper.vote({ support: Enums.VoteType.For }, { from: voter1 }); + await this.helper.waitForDeadline(); + + expectEvent(await this.helper.cancel(), 'ProposalCanceled', { proposalId: this.proposal.id }); + + expect(await this.mock.state(this.proposal.id)).to.be.bignumber.equal(Enums.ProposalState.Canceled); + await expectRevert(this.helper.queue(), 'Governor: proposal not successful'); + }); + + it('cancel after queue prevents executing', async function () { + await this.helper.propose(); + await this.helper.waitForSnapshot(); + await this.helper.vote({ support: Enums.VoteType.For }, { from: voter1 }); + await this.helper.waitForDeadline(); + await this.helper.queue(); + + expectEvent(await this.helper.cancel(), 'ProposalCanceled', { proposalId: this.proposal.id }); + + expect(await this.mock.state(this.proposal.id)).to.be.bignumber.equal(Enums.ProposalState.Canceled); + await expectRevert(this.helper.execute(), 'Governor: proposal not successful'); + }); + }); + + describe('onlyGovernance', function () { + describe('relay', function () { + beforeEach(async function () { + await this.token.$_mint(this.mock.address, 1); + }); + + it('is protected', async function () { + await expectRevert( + this.mock.relay(this.token.address, 0, this.token.contract.methods.transfer(other, 1).encodeABI()), + 'Governor: onlyGovernance', + ); + }); + + it('can be executed through governance', async function () { + this.helper.setProposal( + [ + { + target: this.mock.address, + data: this.mock.contract.methods + .relay(this.token.address, 0, this.token.contract.methods.transfer(other, 1).encodeABI()) + .encodeABI(), + }, + ], + '', + ); + + expect(await this.token.balanceOf(this.mock.address), 1); + expect(await this.token.balanceOf(other), 0); + + await this.helper.propose(); + await this.helper.waitForSnapshot(); + await this.helper.vote({ support: Enums.VoteType.For }, { from: voter1 }); + await this.helper.waitForDeadline(); + await this.helper.queue(); + await this.helper.waitForEta(); + const txExecute = await this.helper.execute(); + + expect(await this.token.balanceOf(this.mock.address), 0); + expect(await this.token.balanceOf(other), 1); + + expectEvent.inTransaction(txExecute.tx, this.token, 'Transfer', { + from: this.mock.address, + to: other, + value: '1', + }); + }); + }); + + describe('updateTimelock', function () { + beforeEach(async function () { + this.newTimelock = await Timelock.new(this.mock.address, 7 * 86400); + }); + + it('is protected', async function () { + await expectRevert(this.mock.updateTimelock(this.newTimelock.address), 'Governor: onlyGovernance'); + }); + + it('can be executed through governance to', async function () { + this.helper.setProposal( + [ + { + target: this.timelock.address, + data: this.timelock.contract.methods.setPendingAdmin(owner).encodeABI(), + }, + { + target: this.mock.address, + data: this.mock.contract.methods.updateTimelock(this.newTimelock.address).encodeABI(), + }, + ], + '', + ); + + await this.helper.propose(); + await this.helper.waitForSnapshot(); + await this.helper.vote({ support: Enums.VoteType.For }, { from: voter1 }); + await this.helper.waitForDeadline(); + await this.helper.queue(); + await this.helper.waitForEta(); + const txExecute = await this.helper.execute(); + + expectEvent(txExecute, 'TimelockChange', { + oldTimelock: this.timelock.address, + newTimelock: this.newTimelock.address, + }); + + expect(await this.mock.timelock()).to.be.bignumber.equal(this.newTimelock.address); + }); + }); + + it('can transfer timelock to new governor', async function () { + const newGovernor = await Governor.new(name, 8, 32, 0, this.timelock.address, this.token.address, 0); + this.helper.setProposal( + [ + { + target: this.timelock.address, + data: this.timelock.contract.methods.setPendingAdmin(newGovernor.address).encodeABI(), + }, + ], + '', + ); + + await this.helper.propose(); + await this.helper.waitForSnapshot(); + await this.helper.vote({ support: Enums.VoteType.For }, { from: voter1 }); + await this.helper.waitForDeadline(); + await this.helper.queue(); + await this.helper.waitForEta(); + const txExecute = await this.helper.execute(); + + await expectEvent.inTransaction(txExecute.tx, this.timelock, 'NewPendingAdmin', { + newPendingAdmin: newGovernor.address, + }); + + await newGovernor.__acceptAdmin(); + expect(await this.timelock.admin()).to.be.bignumber.equal(newGovernor.address); + }); + }); +}); diff --git a/lib/openzeppelin-contracts/test/governance/extensions/GovernorTimelockControl.test.js b/lib/openzeppelin-contracts/test/governance/extensions/GovernorTimelockControl.test.js new file mode 100644 index 0000000..2e8c758 --- /dev/null +++ b/lib/openzeppelin-contracts/test/governance/extensions/GovernorTimelockControl.test.js @@ -0,0 +1,391 @@ +const { BN, constants, expectEvent, expectRevert, time } = require('@openzeppelin/test-helpers'); +const { expect } = require('chai'); +const Enums = require('../../helpers/enums'); +const { GovernorHelper } = require('../../helpers/governance'); + +const { shouldSupportInterfaces } = require('../../utils/introspection/SupportsInterface.behavior'); + +const Token = artifacts.require('$ERC20Votes'); +const Timelock = artifacts.require('TimelockController'); +const Governor = artifacts.require('$GovernorTimelockControlMock'); +const CallReceiver = artifacts.require('CallReceiverMock'); + +contract('GovernorTimelockControl', function (accounts) { + const [owner, voter1, voter2, voter3, voter4, other] = accounts; + + const TIMELOCK_ADMIN_ROLE = web3.utils.soliditySha3('TIMELOCK_ADMIN_ROLE'); + const PROPOSER_ROLE = web3.utils.soliditySha3('PROPOSER_ROLE'); + const EXECUTOR_ROLE = web3.utils.soliditySha3('EXECUTOR_ROLE'); + const CANCELLER_ROLE = web3.utils.soliditySha3('CANCELLER_ROLE'); + + const name = 'OZ-Governor'; + // const version = '1'; + const tokenName = 'MockToken'; + const tokenSymbol = 'MTKN'; + const tokenSupply = web3.utils.toWei('100'); + const votingDelay = new BN(4); + const votingPeriod = new BN(16); + const value = web3.utils.toWei('1'); + + beforeEach(async function () { + const [deployer] = await web3.eth.getAccounts(); + + this.token = await Token.new(tokenName, tokenSymbol, tokenName); + this.timelock = await Timelock.new(3600, [], [], deployer); + this.mock = await Governor.new(name, votingDelay, votingPeriod, 0, this.timelock.address, this.token.address, 0); + this.receiver = await CallReceiver.new(); + + this.helper = new GovernorHelper(this.mock); + + this.TIMELOCK_ADMIN_ROLE = await this.timelock.TIMELOCK_ADMIN_ROLE(); + this.PROPOSER_ROLE = await this.timelock.PROPOSER_ROLE(); + this.EXECUTOR_ROLE = await this.timelock.EXECUTOR_ROLE(); + this.CANCELLER_ROLE = await this.timelock.CANCELLER_ROLE(); + + await web3.eth.sendTransaction({ from: owner, to: this.timelock.address, value }); + + // normal setup: governor is proposer, everyone is executor, timelock is its own admin + await this.timelock.grantRole(PROPOSER_ROLE, this.mock.address); + await this.timelock.grantRole(PROPOSER_ROLE, owner); + await this.timelock.grantRole(CANCELLER_ROLE, this.mock.address); + await this.timelock.grantRole(CANCELLER_ROLE, owner); + await this.timelock.grantRole(EXECUTOR_ROLE, constants.ZERO_ADDRESS); + await this.timelock.revokeRole(TIMELOCK_ADMIN_ROLE, deployer); + + await this.token.$_mint(owner, tokenSupply); + await this.helper.delegate({ token: this.token, to: voter1, value: web3.utils.toWei('10') }, { from: owner }); + await this.helper.delegate({ token: this.token, to: voter2, value: web3.utils.toWei('7') }, { from: owner }); + await this.helper.delegate({ token: this.token, to: voter3, value: web3.utils.toWei('5') }, { from: owner }); + await this.helper.delegate({ token: this.token, to: voter4, value: web3.utils.toWei('2') }, { from: owner }); + + // default proposal + this.proposal = this.helper.setProposal( + [ + { + target: this.receiver.address, + value, + data: this.receiver.contract.methods.mockFunction().encodeABI(), + }, + ], + '', + ); + this.proposal.timelockid = await this.timelock.hashOperationBatch( + ...this.proposal.shortProposal.slice(0, 3), + '0x0', + this.proposal.shortProposal[3], + ); + }); + + shouldSupportInterfaces(['ERC165', 'Governor', 'GovernorWithParams', 'GovernorTimelock']); + + it("doesn't accept ether transfers", async function () { + await expectRevert.unspecified(web3.eth.sendTransaction({ from: owner, to: this.mock.address, value: 1 })); + }); + + it('post deployment check', async function () { + expect(await this.mock.name()).to.be.equal(name); + expect(await this.mock.token()).to.be.equal(this.token.address); + expect(await this.mock.votingDelay()).to.be.bignumber.equal(votingDelay); + expect(await this.mock.votingPeriod()).to.be.bignumber.equal(votingPeriod); + expect(await this.mock.quorum(0)).to.be.bignumber.equal('0'); + + expect(await this.mock.timelock()).to.be.equal(this.timelock.address); + }); + + it('nominal', async function () { + await this.helper.propose(); + await this.helper.waitForSnapshot(); + await this.helper.vote({ support: Enums.VoteType.For }, { from: voter1 }); + await this.helper.vote({ support: Enums.VoteType.For }, { from: voter2 }); + await this.helper.vote({ support: Enums.VoteType.Against }, { from: voter3 }); + await this.helper.vote({ support: Enums.VoteType.Abstain }, { from: voter4 }); + await this.helper.waitForDeadline(); + const txQueue = await this.helper.queue(); + await this.helper.waitForEta(); + const txExecute = await this.helper.execute(); + + expectEvent(txQueue, 'ProposalQueued', { proposalId: this.proposal.id }); + await expectEvent.inTransaction(txQueue.tx, this.timelock, 'CallScheduled', { id: this.proposal.timelockid }); + + expectEvent(txExecute, 'ProposalExecuted', { proposalId: this.proposal.id }); + await expectEvent.inTransaction(txExecute.tx, this.timelock, 'CallExecuted', { id: this.proposal.timelockid }); + await expectEvent.inTransaction(txExecute.tx, this.receiver, 'MockFunctionCalled'); + }); + + describe('should revert', function () { + describe('on queue', function () { + it('if already queued', async function () { + await this.helper.propose(); + await this.helper.waitForSnapshot(); + await this.helper.vote({ support: Enums.VoteType.For }, { from: voter1 }); + await this.helper.waitForDeadline(); + await this.helper.queue(); + await expectRevert(this.helper.queue(), 'Governor: proposal not successful'); + }); + }); + + describe('on execute', function () { + it('if not queued', async function () { + await this.helper.propose(); + await this.helper.waitForSnapshot(); + await this.helper.vote({ support: Enums.VoteType.For }, { from: voter1 }); + await this.helper.waitForDeadline(+1); + + expect(await this.mock.state(this.proposal.id)).to.be.bignumber.equal(Enums.ProposalState.Succeeded); + + await expectRevert(this.helper.execute(), 'TimelockController: operation is not ready'); + }); + + it('if too early', async function () { + await this.helper.propose(); + await this.helper.waitForSnapshot(); + await this.helper.vote({ support: Enums.VoteType.For }, { from: voter1 }); + await this.helper.waitForDeadline(); + await this.helper.queue(); + + expect(await this.mock.state(this.proposal.id)).to.be.bignumber.equal(Enums.ProposalState.Queued); + + await expectRevert(this.helper.execute(), 'TimelockController: operation is not ready'); + }); + + it('if already executed', async function () { + await this.helper.propose(); + await this.helper.waitForSnapshot(); + await this.helper.vote({ support: Enums.VoteType.For }, { from: voter1 }); + await this.helper.waitForDeadline(); + await this.helper.queue(); + await this.helper.waitForEta(); + await this.helper.execute(); + await expectRevert(this.helper.execute(), 'Governor: proposal not successful'); + }); + + it('if already executed by another proposer', async function () { + await this.helper.propose(); + await this.helper.waitForSnapshot(); + await this.helper.vote({ support: Enums.VoteType.For }, { from: voter1 }); + await this.helper.waitForDeadline(); + await this.helper.queue(); + await this.helper.waitForEta(); + + await this.timelock.executeBatch( + ...this.proposal.shortProposal.slice(0, 3), + '0x0', + this.proposal.shortProposal[3], + ); + + await expectRevert(this.helper.execute(), 'Governor: proposal not successful'); + }); + }); + }); + + describe('cancel', function () { + it('cancel before queue prevents scheduling', async function () { + await this.helper.propose(); + await this.helper.waitForSnapshot(); + await this.helper.vote({ support: Enums.VoteType.For }, { from: voter1 }); + await this.helper.waitForDeadline(); + + expectEvent(await this.helper.cancel(), 'ProposalCanceled', { proposalId: this.proposal.id }); + + expect(await this.mock.state(this.proposal.id)).to.be.bignumber.equal(Enums.ProposalState.Canceled); + await expectRevert(this.helper.queue(), 'Governor: proposal not successful'); + }); + + it('cancel after queue prevents executing', async function () { + await this.helper.propose(); + await this.helper.waitForSnapshot(); + await this.helper.vote({ support: Enums.VoteType.For }, { from: voter1 }); + await this.helper.waitForDeadline(); + await this.helper.queue(); + + expectEvent(await this.helper.cancel(), 'ProposalCanceled', { proposalId: this.proposal.id }); + + expect(await this.mock.state(this.proposal.id)).to.be.bignumber.equal(Enums.ProposalState.Canceled); + await expectRevert(this.helper.execute(), 'Governor: proposal not successful'); + }); + + it('cancel on timelock is reflected on governor', async function () { + await this.helper.propose(); + await this.helper.waitForSnapshot(); + await this.helper.vote({ support: Enums.VoteType.For }, { from: voter1 }); + await this.helper.waitForDeadline(); + await this.helper.queue(); + + expect(await this.mock.state(this.proposal.id)).to.be.bignumber.equal(Enums.ProposalState.Queued); + + expectEvent(await this.timelock.cancel(this.proposal.timelockid, { from: owner }), 'Cancelled', { + id: this.proposal.timelockid, + }); + + expect(await this.mock.state(this.proposal.id)).to.be.bignumber.equal(Enums.ProposalState.Canceled); + }); + }); + + describe('onlyGovernance', function () { + describe('relay', function () { + beforeEach(async function () { + await this.token.$_mint(this.mock.address, 1); + }); + + it('is protected', async function () { + await expectRevert( + this.mock.relay(this.token.address, 0, this.token.contract.methods.transfer(other, 1).encodeABI()), + 'Governor: onlyGovernance', + ); + }); + + it('can be executed through governance', async function () { + this.helper.setProposal( + [ + { + target: this.mock.address, + data: this.mock.contract.methods + .relay(this.token.address, 0, this.token.contract.methods.transfer(other, 1).encodeABI()) + .encodeABI(), + }, + ], + '', + ); + + expect(await this.token.balanceOf(this.mock.address), 1); + expect(await this.token.balanceOf(other), 0); + + await this.helper.propose(); + await this.helper.waitForSnapshot(); + await this.helper.vote({ support: Enums.VoteType.For }, { from: voter1 }); + await this.helper.waitForDeadline(); + await this.helper.queue(); + await this.helper.waitForEta(); + const txExecute = await this.helper.execute(); + + expect(await this.token.balanceOf(this.mock.address), 0); + expect(await this.token.balanceOf(other), 1); + + expectEvent.inTransaction(txExecute.tx, this.token, 'Transfer', { + from: this.mock.address, + to: other, + value: '1', + }); + }); + + it('is payable and can transfer eth to EOA', async function () { + const t2g = web3.utils.toBN(128); // timelock to governor + const g2o = web3.utils.toBN(100); // governor to eoa (other) + + this.helper.setProposal( + [ + { + target: this.mock.address, + value: t2g, + data: this.mock.contract.methods.relay(other, g2o, '0x').encodeABI(), + }, + ], + '', + ); + + expect(await web3.eth.getBalance(this.mock.address)).to.be.bignumber.equal(web3.utils.toBN(0)); + const timelockBalance = await web3.eth.getBalance(this.timelock.address).then(web3.utils.toBN); + const otherBalance = await web3.eth.getBalance(other).then(web3.utils.toBN); + + await this.helper.propose(); + await this.helper.waitForSnapshot(); + await this.helper.vote({ support: Enums.VoteType.For }, { from: voter1 }); + await this.helper.waitForDeadline(); + await this.helper.queue(); + await this.helper.waitForEta(); + await this.helper.execute(); + + expect(await web3.eth.getBalance(this.timelock.address)).to.be.bignumber.equal(timelockBalance.sub(t2g)); + expect(await web3.eth.getBalance(this.mock.address)).to.be.bignumber.equal(t2g.sub(g2o)); + expect(await web3.eth.getBalance(other)).to.be.bignumber.equal(otherBalance.add(g2o)); + }); + + it('protected against other proposers', async function () { + await this.timelock.schedule( + this.mock.address, + web3.utils.toWei('0'), + this.mock.contract.methods.relay(constants.ZERO_ADDRESS, 0, '0x').encodeABI(), + constants.ZERO_BYTES32, + constants.ZERO_BYTES32, + 3600, + { from: owner }, + ); + + await time.increase(3600); + + await expectRevert( + this.timelock.execute( + this.mock.address, + web3.utils.toWei('0'), + this.mock.contract.methods.relay(constants.ZERO_ADDRESS, 0, '0x').encodeABI(), + constants.ZERO_BYTES32, + constants.ZERO_BYTES32, + { from: owner }, + ), + 'TimelockController: underlying transaction reverted', + ); + }); + }); + + describe('updateTimelock', function () { + beforeEach(async function () { + this.newTimelock = await Timelock.new(3600, [this.mock.address], [this.mock.address], constants.ZERO_ADDRESS); + }); + + it('is protected', async function () { + await expectRevert(this.mock.updateTimelock(this.newTimelock.address), 'Governor: onlyGovernance'); + }); + + it('can be executed through governance to', async function () { + this.helper.setProposal( + [ + { + target: this.mock.address, + data: this.mock.contract.methods.updateTimelock(this.newTimelock.address).encodeABI(), + }, + ], + '', + ); + + await this.helper.propose(); + await this.helper.waitForSnapshot(); + await this.helper.vote({ support: Enums.VoteType.For }, { from: voter1 }); + await this.helper.waitForDeadline(); + await this.helper.queue(); + await this.helper.waitForEta(); + const txExecute = await this.helper.execute(); + + expectEvent(txExecute, 'TimelockChange', { + oldTimelock: this.timelock.address, + newTimelock: this.newTimelock.address, + }); + + expect(await this.mock.timelock()).to.be.bignumber.equal(this.newTimelock.address); + }); + }); + }); + + it('clear queue of pending governor calls', async function () { + this.helper.setProposal( + [ + { + target: this.mock.address, + data: this.mock.contract.methods.nonGovernanceFunction().encodeABI(), + }, + ], + '', + ); + + await this.helper.propose(); + await this.helper.waitForSnapshot(); + await this.helper.vote({ support: Enums.VoteType.For }, { from: voter1 }); + await this.helper.waitForDeadline(); + await this.helper.queue(); + await this.helper.waitForEta(); + await this.helper.execute(); + + // This path clears _governanceCall as part of the afterExecute call, + // but we have not way to check that the cleanup actually happened other + // then coverage reports. + }); +}); diff --git a/lib/openzeppelin-contracts/test/governance/extensions/GovernorVotesQuorumFraction.test.js b/lib/openzeppelin-contracts/test/governance/extensions/GovernorVotesQuorumFraction.test.js new file mode 100644 index 0000000..84d36f9 --- /dev/null +++ b/lib/openzeppelin-contracts/test/governance/extensions/GovernorVotesQuorumFraction.test.js @@ -0,0 +1,142 @@ +const { BN, expectEvent, expectRevert, time } = require('@openzeppelin/test-helpers'); +const { expect } = require('chai'); +const Enums = require('../../helpers/enums'); +const { GovernorHelper } = require('../../helpers/governance'); + +const Token = artifacts.require('$ERC20Votes'); +const Governor = artifacts.require('$GovernorMock'); +const CallReceiver = artifacts.require('CallReceiverMock'); + +contract('GovernorVotesQuorumFraction', function (accounts) { + const [owner, voter1, voter2, voter3, voter4] = accounts; + + const name = 'OZ-Governor'; + // const version = '1'; + const tokenName = 'MockToken'; + const tokenSymbol = 'MTKN'; + const tokenSupply = new BN(web3.utils.toWei('100')); + const ratio = new BN(8); // percents + const newRatio = new BN(6); // percents + const votingDelay = new BN(4); + const votingPeriod = new BN(16); + const value = web3.utils.toWei('1'); + + beforeEach(async function () { + this.owner = owner; + this.token = await Token.new(tokenName, tokenSymbol, tokenName); + this.mock = await Governor.new(name, votingDelay, votingPeriod, 0, this.token.address, ratio); + this.receiver = await CallReceiver.new(); + + this.helper = new GovernorHelper(this.mock); + + await web3.eth.sendTransaction({ from: owner, to: this.mock.address, value }); + + await this.token.$_mint(owner, tokenSupply); + await this.helper.delegate({ token: this.token, to: voter1, value: web3.utils.toWei('10') }, { from: owner }); + await this.helper.delegate({ token: this.token, to: voter2, value: web3.utils.toWei('7') }, { from: owner }); + await this.helper.delegate({ token: this.token, to: voter3, value: web3.utils.toWei('5') }, { from: owner }); + await this.helper.delegate({ token: this.token, to: voter4, value: web3.utils.toWei('2') }, { from: owner }); + + // default proposal + this.proposal = this.helper.setProposal( + [ + { + target: this.receiver.address, + value, + data: this.receiver.contract.methods.mockFunction().encodeABI(), + }, + ], + '', + ); + }); + + it('deployment check', async function () { + expect(await this.mock.name()).to.be.equal(name); + expect(await this.mock.token()).to.be.equal(this.token.address); + expect(await this.mock.votingDelay()).to.be.bignumber.equal(votingDelay); + expect(await this.mock.votingPeriod()).to.be.bignumber.equal(votingPeriod); + expect(await this.mock.quorum(0)).to.be.bignumber.equal('0'); + expect(await this.mock.quorumNumerator()).to.be.bignumber.equal(ratio); + expect(await this.mock.quorumDenominator()).to.be.bignumber.equal('100'); + expect(await time.latestBlock().then(blockNumber => this.mock.quorum(blockNumber.subn(1)))).to.be.bignumber.equal( + tokenSupply.mul(ratio).divn(100), + ); + }); + + it('quroum reached', async function () { + await this.helper.propose(); + await this.helper.waitForSnapshot(); + await this.helper.vote({ support: Enums.VoteType.For }, { from: voter1 }); + await this.helper.waitForDeadline(); + await this.helper.execute(); + }); + + it('quroum not reached', async function () { + await this.helper.propose(); + await this.helper.waitForSnapshot(); + await this.helper.vote({ support: Enums.VoteType.For }, { from: voter2 }); + await this.helper.waitForDeadline(); + await expectRevert(this.helper.execute(), 'Governor: proposal not successful'); + }); + + describe('onlyGovernance updates', function () { + it('updateQuorumNumerator is protected', async function () { + await expectRevert(this.mock.updateQuorumNumerator(newRatio), 'Governor: onlyGovernance'); + }); + + it('can updateQuorumNumerator through governance', async function () { + this.helper.setProposal( + [ + { + target: this.mock.address, + data: this.mock.contract.methods.updateQuorumNumerator(newRatio).encodeABI(), + }, + ], + '', + ); + + await this.helper.propose(); + await this.helper.waitForSnapshot(); + await this.helper.vote({ support: Enums.VoteType.For }, { from: voter1 }); + await this.helper.waitForDeadline(); + + expectEvent(await this.helper.execute(), 'QuorumNumeratorUpdated', { + oldQuorumNumerator: ratio, + newQuorumNumerator: newRatio, + }); + + expect(await this.mock.quorumNumerator()).to.be.bignumber.equal(newRatio); + expect(await this.mock.quorumDenominator()).to.be.bignumber.equal('100'); + + // it takes one block for the new quorum to take effect + expect(await time.latestBlock().then(blockNumber => this.mock.quorum(blockNumber.subn(1)))).to.be.bignumber.equal( + tokenSupply.mul(ratio).divn(100), + ); + + await time.advanceBlock(); + + expect(await time.latestBlock().then(blockNumber => this.mock.quorum(blockNumber.subn(1)))).to.be.bignumber.equal( + tokenSupply.mul(newRatio).divn(100), + ); + }); + + it('cannot updateQuorumNumerator over the maximum', async function () { + this.helper.setProposal( + [ + { + target: this.mock.address, + data: this.mock.contract.methods.updateQuorumNumerator('101').encodeABI(), + }, + ], + '', + ); + + await this.helper.propose(); + await this.helper.waitForSnapshot(); + await this.helper.vote({ support: Enums.VoteType.For }, { from: voter1 }); + await this.helper.waitForDeadline(); + + await expectRevert(this.helper.execute(), 'GovernorVotesQuorumFraction: quorumNumerator over quorumDenominator'); + }); + }); +}); diff --git a/lib/openzeppelin-contracts/test/governance/extensions/GovernorWithParams.test.js b/lib/openzeppelin-contracts/test/governance/extensions/GovernorWithParams.test.js new file mode 100644 index 0000000..26e9485 --- /dev/null +++ b/lib/openzeppelin-contracts/test/governance/extensions/GovernorWithParams.test.js @@ -0,0 +1,168 @@ +const { BN, expectEvent } = require('@openzeppelin/test-helpers'); +const { expect } = require('chai'); +const ethSigUtil = require('eth-sig-util'); +const Wallet = require('ethereumjs-wallet').default; +const { fromRpcSig } = require('ethereumjs-util'); +const Enums = require('../../helpers/enums'); +const { EIP712Domain } = require('../../helpers/eip712'); +const { GovernorHelper } = require('../../helpers/governance'); + +const Token = artifacts.require('$ERC20VotesComp'); +const Governor = artifacts.require('$GovernorWithParamsMock'); +const CallReceiver = artifacts.require('CallReceiverMock'); + +const rawParams = { + uintParam: new BN('42'), + strParam: 'These are my params', +}; + +const encodedParams = web3.eth.abi.encodeParameters(['uint256', 'string'], Object.values(rawParams)); + +contract('GovernorWithParams', function (accounts) { + const [owner, proposer, voter1, voter2, voter3, voter4] = accounts; + + const name = 'OZ-Governor'; + const version = '1'; + const tokenName = 'MockToken'; + const tokenSymbol = 'MTKN'; + const tokenSupply = web3.utils.toWei('100'); + const votingDelay = new BN(4); + const votingPeriod = new BN(16); + const value = web3.utils.toWei('1'); + + beforeEach(async function () { + this.chainId = await web3.eth.getChainId(); + this.token = await Token.new(tokenName, tokenSymbol, tokenName); + this.mock = await Governor.new(name, this.token.address); + this.receiver = await CallReceiver.new(); + + this.helper = new GovernorHelper(this.mock); + + await web3.eth.sendTransaction({ from: owner, to: this.mock.address, value }); + + await this.token.$_mint(owner, tokenSupply); + await this.helper.delegate({ token: this.token, to: voter1, value: web3.utils.toWei('10') }, { from: owner }); + await this.helper.delegate({ token: this.token, to: voter2, value: web3.utils.toWei('7') }, { from: owner }); + await this.helper.delegate({ token: this.token, to: voter3, value: web3.utils.toWei('5') }, { from: owner }); + await this.helper.delegate({ token: this.token, to: voter4, value: web3.utils.toWei('2') }, { from: owner }); + + // default proposal + this.proposal = this.helper.setProposal( + [ + { + target: this.receiver.address, + value, + data: this.receiver.contract.methods.mockFunction().encodeABI(), + }, + ], + '', + ); + }); + + it('deployment check', async function () { + expect(await this.mock.name()).to.be.equal(name); + expect(await this.mock.token()).to.be.equal(this.token.address); + expect(await this.mock.votingDelay()).to.be.bignumber.equal(votingDelay); + expect(await this.mock.votingPeriod()).to.be.bignumber.equal(votingPeriod); + }); + + it('nominal is unaffected', async function () { + await this.helper.propose({ from: proposer }); + await this.helper.waitForSnapshot(); + await this.helper.vote({ support: Enums.VoteType.For, reason: 'This is nice' }, { from: voter1 }); + await this.helper.vote({ support: Enums.VoteType.For }, { from: voter2 }); + await this.helper.vote({ support: Enums.VoteType.Against }, { from: voter3 }); + await this.helper.vote({ support: Enums.VoteType.Abstain }, { from: voter4 }); + await this.helper.waitForDeadline(); + await this.helper.execute(); + + expect(await this.mock.hasVoted(this.proposal.id, owner)).to.be.equal(false); + expect(await this.mock.hasVoted(this.proposal.id, voter1)).to.be.equal(true); + expect(await this.mock.hasVoted(this.proposal.id, voter2)).to.be.equal(true); + expect(await web3.eth.getBalance(this.mock.address)).to.be.bignumber.equal('0'); + expect(await web3.eth.getBalance(this.receiver.address)).to.be.bignumber.equal(value); + }); + + it('Voting with params is properly supported', async function () { + await this.helper.propose({ from: proposer }); + await this.helper.waitForSnapshot(); + + const weight = new BN(web3.utils.toWei('7')).sub(rawParams.uintParam); + + const tx = await this.helper.vote( + { + support: Enums.VoteType.For, + reason: 'no particular reason', + params: encodedParams, + }, + { from: voter2 }, + ); + + expectEvent(tx, 'CountParams', { ...rawParams }); + expectEvent(tx, 'VoteCastWithParams', { + voter: voter2, + proposalId: this.proposal.id, + support: Enums.VoteType.For, + weight, + reason: 'no particular reason', + params: encodedParams, + }); + + const votes = await this.mock.proposalVotes(this.proposal.id); + expect(votes.forVotes).to.be.bignumber.equal(weight); + }); + + it('Voting with params by signature is properly supported', async function () { + const voterBySig = Wallet.generate(); + const voterBySigAddress = web3.utils.toChecksumAddress(voterBySig.getAddressString()); + + const signature = async message => { + return fromRpcSig( + ethSigUtil.signTypedMessage(voterBySig.getPrivateKey(), { + data: { + types: { + EIP712Domain, + ExtendedBallot: [ + { name: 'proposalId', type: 'uint256' }, + { name: 'support', type: 'uint8' }, + { name: 'reason', type: 'string' }, + { name: 'params', type: 'bytes' }, + ], + }, + domain: { name, version, chainId: this.chainId, verifyingContract: this.mock.address }, + primaryType: 'ExtendedBallot', + message, + }, + }), + ); + }; + + await this.token.delegate(voterBySigAddress, { from: voter2 }); + + // Run proposal + await this.helper.propose(); + await this.helper.waitForSnapshot(); + + const weight = new BN(web3.utils.toWei('7')).sub(rawParams.uintParam); + + const tx = await this.helper.vote({ + support: Enums.VoteType.For, + reason: 'no particular reason', + params: encodedParams, + signature, + }); + + expectEvent(tx, 'CountParams', { ...rawParams }); + expectEvent(tx, 'VoteCastWithParams', { + voter: voterBySigAddress, + proposalId: this.proposal.id, + support: Enums.VoteType.For, + weight, + reason: 'no particular reason', + params: encodedParams, + }); + + const votes = await this.mock.proposalVotes(this.proposal.id); + expect(votes.forVotes).to.be.bignumber.equal(weight); + }); +}); diff --git a/lib/openzeppelin-contracts/test/governance/utils/Votes.behavior.js b/lib/openzeppelin-contracts/test/governance/utils/Votes.behavior.js new file mode 100644 index 0000000..5062a9c --- /dev/null +++ b/lib/openzeppelin-contracts/test/governance/utils/Votes.behavior.js @@ -0,0 +1,351 @@ +const { constants, expectEvent, expectRevert, time } = require('@openzeppelin/test-helpers'); + +const { MAX_UINT256, ZERO_ADDRESS } = constants; + +const { fromRpcSig } = require('ethereumjs-util'); +const ethSigUtil = require('eth-sig-util'); +const Wallet = require('ethereumjs-wallet').default; + +const { EIP712Domain, domainSeparator } = require('../../helpers/eip712'); + +const Delegation = [ + { name: 'delegatee', type: 'address' }, + { name: 'nonce', type: 'uint256' }, + { name: 'expiry', type: 'uint256' }, +]; + +const version = '1'; + +function shouldBehaveLikeVotes() { + describe('run votes workflow', function () { + it('initial nonce is 0', async function () { + expect(await this.votes.nonces(this.account1)).to.be.bignumber.equal('0'); + }); + + it('domain separator', async function () { + expect(await this.votes.DOMAIN_SEPARATOR()).to.equal( + await domainSeparator({ + name: this.name, + version, + chainId: this.chainId, + verifyingContract: this.votes.address, + }), + ); + }); + + describe('delegation with signature', function () { + const delegator = Wallet.generate(); + const delegatorAddress = web3.utils.toChecksumAddress(delegator.getAddressString()); + const nonce = 0; + + const buildData = (chainId, verifyingContract, name, message) => ({ + data: { + primaryType: 'Delegation', + types: { EIP712Domain, Delegation }, + domain: { name, version, chainId, verifyingContract }, + message, + }, + }); + + beforeEach(async function () { + await this.votes.$_mint(delegatorAddress, this.NFT0); + }); + + it('accept signed delegation', async function () { + const { v, r, s } = fromRpcSig( + ethSigUtil.signTypedMessage( + delegator.getPrivateKey(), + buildData(this.chainId, this.votes.address, this.name, { + delegatee: delegatorAddress, + nonce, + expiry: MAX_UINT256, + }), + ), + ); + + expect(await this.votes.delegates(delegatorAddress)).to.be.equal(ZERO_ADDRESS); + + const { receipt } = await this.votes.delegateBySig(delegatorAddress, nonce, MAX_UINT256, v, r, s); + expectEvent(receipt, 'DelegateChanged', { + delegator: delegatorAddress, + fromDelegate: ZERO_ADDRESS, + toDelegate: delegatorAddress, + }); + expectEvent(receipt, 'DelegateVotesChanged', { + delegate: delegatorAddress, + previousBalance: '0', + newBalance: '1', + }); + + expect(await this.votes.delegates(delegatorAddress)).to.be.equal(delegatorAddress); + + expect(await this.votes.getVotes(delegatorAddress)).to.be.bignumber.equal('1'); + expect(await this.votes.getPastVotes(delegatorAddress, receipt.blockNumber - 1)).to.be.bignumber.equal('0'); + await time.advanceBlock(); + expect(await this.votes.getPastVotes(delegatorAddress, receipt.blockNumber)).to.be.bignumber.equal('1'); + }); + + it('rejects reused signature', async function () { + const { v, r, s } = fromRpcSig( + ethSigUtil.signTypedMessage( + delegator.getPrivateKey(), + buildData(this.chainId, this.votes.address, this.name, { + delegatee: delegatorAddress, + nonce, + expiry: MAX_UINT256, + }), + ), + ); + + await this.votes.delegateBySig(delegatorAddress, nonce, MAX_UINT256, v, r, s); + + await expectRevert( + this.votes.delegateBySig(delegatorAddress, nonce, MAX_UINT256, v, r, s), + 'Votes: invalid nonce', + ); + }); + + it('rejects bad delegatee', async function () { + const { v, r, s } = fromRpcSig( + ethSigUtil.signTypedMessage( + delegator.getPrivateKey(), + buildData(this.chainId, this.votes.address, this.name, { + delegatee: delegatorAddress, + nonce, + expiry: MAX_UINT256, + }), + ), + ); + + const receipt = await this.votes.delegateBySig(this.account1Delegatee, nonce, MAX_UINT256, v, r, s); + const { args } = receipt.logs.find(({ event }) => event === 'DelegateChanged'); + expect(args.delegator).to.not.be.equal(delegatorAddress); + expect(args.fromDelegate).to.be.equal(ZERO_ADDRESS); + expect(args.toDelegate).to.be.equal(this.account1Delegatee); + }); + + it('rejects bad nonce', async function () { + const { v, r, s } = fromRpcSig( + ethSigUtil.signTypedMessage( + delegator.getPrivateKey(), + buildData(this.chainId, this.votes.address, this.name, { + delegatee: delegatorAddress, + nonce, + expiry: MAX_UINT256, + }), + ), + ); + await expectRevert( + this.votes.delegateBySig(delegatorAddress, nonce + 1, MAX_UINT256, v, r, s), + 'Votes: invalid nonce', + ); + }); + + it('rejects expired permit', async function () { + const expiry = (await time.latest()) - time.duration.weeks(1); + const { v, r, s } = fromRpcSig( + ethSigUtil.signTypedMessage( + delegator.getPrivateKey(), + buildData(this.chainId, this.votes.address, this.name, { + delegatee: delegatorAddress, + nonce, + expiry, + }), + ), + ); + + await expectRevert( + this.votes.delegateBySig(delegatorAddress, nonce, expiry, v, r, s), + 'Votes: signature expired', + ); + }); + }); + + describe('set delegation', function () { + describe('call', function () { + it('delegation with tokens', async function () { + await this.votes.$_mint(this.account1, this.NFT0); + expect(await this.votes.delegates(this.account1)).to.be.equal(ZERO_ADDRESS); + + const { receipt } = await this.votes.delegate(this.account1, { from: this.account1 }); + expectEvent(receipt, 'DelegateChanged', { + delegator: this.account1, + fromDelegate: ZERO_ADDRESS, + toDelegate: this.account1, + }); + expectEvent(receipt, 'DelegateVotesChanged', { + delegate: this.account1, + previousBalance: '0', + newBalance: '1', + }); + + expect(await this.votes.delegates(this.account1)).to.be.equal(this.account1); + + expect(await this.votes.getVotes(this.account1)).to.be.bignumber.equal('1'); + expect(await this.votes.getPastVotes(this.account1, receipt.blockNumber - 1)).to.be.bignumber.equal('0'); + await time.advanceBlock(); + expect(await this.votes.getPastVotes(this.account1, receipt.blockNumber)).to.be.bignumber.equal('1'); + }); + + it('delegation without tokens', async function () { + expect(await this.votes.delegates(this.account1)).to.be.equal(ZERO_ADDRESS); + + const { receipt } = await this.votes.delegate(this.account1, { from: this.account1 }); + expectEvent(receipt, 'DelegateChanged', { + delegator: this.account1, + fromDelegate: ZERO_ADDRESS, + toDelegate: this.account1, + }); + expectEvent.notEmitted(receipt, 'DelegateVotesChanged'); + + expect(await this.votes.delegates(this.account1)).to.be.equal(this.account1); + }); + }); + }); + + describe('change delegation', function () { + beforeEach(async function () { + await this.votes.$_mint(this.account1, this.NFT0); + await this.votes.delegate(this.account1, { from: this.account1 }); + }); + + it('call', async function () { + expect(await this.votes.delegates(this.account1)).to.be.equal(this.account1); + + const { receipt } = await this.votes.delegate(this.account1Delegatee, { from: this.account1 }); + expectEvent(receipt, 'DelegateChanged', { + delegator: this.account1, + fromDelegate: this.account1, + toDelegate: this.account1Delegatee, + }); + expectEvent(receipt, 'DelegateVotesChanged', { + delegate: this.account1, + previousBalance: '1', + newBalance: '0', + }); + expectEvent(receipt, 'DelegateVotesChanged', { + delegate: this.account1Delegatee, + previousBalance: '0', + newBalance: '1', + }); + const prevBlock = receipt.blockNumber - 1; + expect(await this.votes.delegates(this.account1)).to.be.equal(this.account1Delegatee); + + expect(await this.votes.getVotes(this.account1)).to.be.bignumber.equal('0'); + expect(await this.votes.getVotes(this.account1Delegatee)).to.be.bignumber.equal('1'); + expect(await this.votes.getPastVotes(this.account1, receipt.blockNumber - 1)).to.be.bignumber.equal('1'); + expect(await this.votes.getPastVotes(this.account1Delegatee, prevBlock)).to.be.bignumber.equal('0'); + await time.advanceBlock(); + expect(await this.votes.getPastVotes(this.account1, receipt.blockNumber)).to.be.bignumber.equal('0'); + expect(await this.votes.getPastVotes(this.account1Delegatee, receipt.blockNumber)).to.be.bignumber.equal('1'); + }); + }); + + describe('getPastTotalSupply', function () { + beforeEach(async function () { + await this.votes.delegate(this.account1, { from: this.account1 }); + }); + + it('reverts if block number >= current block', async function () { + await expectRevert(this.votes.getPastTotalSupply(5e10), 'block not yet mined'); + }); + + it('returns 0 if there are no checkpoints', async function () { + expect(await this.votes.getPastTotalSupply(0)).to.be.bignumber.equal('0'); + }); + + it('returns the latest block if >= last checkpoint block', async function () { + const t1 = await this.votes.$_mint(this.account1, this.NFT0); + await time.advanceBlock(); + await time.advanceBlock(); + + expect(await this.votes.getPastTotalSupply(t1.receipt.blockNumber - 1)).to.be.bignumber.equal('0'); + expect(await this.votes.getPastTotalSupply(t1.receipt.blockNumber + 1)).to.be.bignumber.equal('1'); + }); + + it('returns zero if < first checkpoint block', async function () { + await time.advanceBlock(); + const t2 = await this.votes.$_mint(this.account1, this.NFT1); + await time.advanceBlock(); + await time.advanceBlock(); + + expect(await this.votes.getPastTotalSupply(t2.receipt.blockNumber - 1)).to.be.bignumber.equal('0'); + expect(await this.votes.getPastTotalSupply(t2.receipt.blockNumber + 1)).to.be.bignumber.equal('1'); + }); + + it('generally returns the voting balance at the appropriate checkpoint', async function () { + const t1 = await this.votes.$_mint(this.account1, this.NFT1); + await time.advanceBlock(); + await time.advanceBlock(); + const t2 = await this.votes.$_burn(this.NFT1); + await time.advanceBlock(); + await time.advanceBlock(); + const t3 = await this.votes.$_mint(this.account1, this.NFT2); + await time.advanceBlock(); + await time.advanceBlock(); + const t4 = await this.votes.$_burn(this.NFT2); + await time.advanceBlock(); + await time.advanceBlock(); + const t5 = await this.votes.$_mint(this.account1, this.NFT3); + await time.advanceBlock(); + await time.advanceBlock(); + + expect(await this.votes.getPastTotalSupply(t1.receipt.blockNumber - 1)).to.be.bignumber.equal('0'); + expect(await this.votes.getPastTotalSupply(t1.receipt.blockNumber)).to.be.bignumber.equal('1'); + expect(await this.votes.getPastTotalSupply(t1.receipt.blockNumber + 1)).to.be.bignumber.equal('1'); + expect(await this.votes.getPastTotalSupply(t2.receipt.blockNumber)).to.be.bignumber.equal('0'); + expect(await this.votes.getPastTotalSupply(t2.receipt.blockNumber + 1)).to.be.bignumber.equal('0'); + expect(await this.votes.getPastTotalSupply(t3.receipt.blockNumber)).to.be.bignumber.equal('1'); + expect(await this.votes.getPastTotalSupply(t3.receipt.blockNumber + 1)).to.be.bignumber.equal('1'); + expect(await this.votes.getPastTotalSupply(t4.receipt.blockNumber)).to.be.bignumber.equal('0'); + expect(await this.votes.getPastTotalSupply(t4.receipt.blockNumber + 1)).to.be.bignumber.equal('0'); + expect(await this.votes.getPastTotalSupply(t5.receipt.blockNumber)).to.be.bignumber.equal('1'); + expect(await this.votes.getPastTotalSupply(t5.receipt.blockNumber + 1)).to.be.bignumber.equal('1'); + }); + }); + + // The following tests are a adaptation of + // https://github.com/compound-finance/compound-protocol/blob/master/tests/Governance/CompTest.js. + describe('Compound test suite', function () { + beforeEach(async function () { + await this.votes.$_mint(this.account1, this.NFT0); + await this.votes.$_mint(this.account1, this.NFT1); + await this.votes.$_mint(this.account1, this.NFT2); + await this.votes.$_mint(this.account1, this.NFT3); + }); + + describe('getPastVotes', function () { + it('reverts if block number >= current block', async function () { + await expectRevert(this.votes.getPastVotes(this.account2, 5e10), 'block not yet mined'); + }); + + it('returns 0 if there are no checkpoints', async function () { + expect(await this.votes.getPastVotes(this.account2, 0)).to.be.bignumber.equal('0'); + }); + + it('returns the latest block if >= last checkpoint block', async function () { + const t1 = await this.votes.delegate(this.account2, { from: this.account1 }); + await time.advanceBlock(); + await time.advanceBlock(); + const latest = await this.votes.getVotes(this.account2); + const nextBlock = t1.receipt.blockNumber + 1; + expect(await this.votes.getPastVotes(this.account2, t1.receipt.blockNumber)).to.be.bignumber.equal(latest); + expect(await this.votes.getPastVotes(this.account2, nextBlock)).to.be.bignumber.equal(latest); + }); + + it('returns zero if < first checkpoint block', async function () { + await time.advanceBlock(); + const t1 = await this.votes.delegate(this.account2, { from: this.account1 }); + await time.advanceBlock(); + await time.advanceBlock(); + + expect(await this.votes.getPastVotes(this.account2, t1.receipt.blockNumber - 1)).to.be.bignumber.equal('0'); + }); + }); + }); + }); +} + +module.exports = { + shouldBehaveLikeVotes, +}; diff --git a/lib/openzeppelin-contracts/test/governance/utils/Votes.test.js b/lib/openzeppelin-contracts/test/governance/utils/Votes.test.js new file mode 100644 index 0000000..7cf998b --- /dev/null +++ b/lib/openzeppelin-contracts/test/governance/utils/Votes.test.js @@ -0,0 +1,58 @@ +const { expectRevert, BN } = require('@openzeppelin/test-helpers'); + +const { expect } = require('chai'); + +const { getChainId } = require('../../helpers/chainid'); + +const { shouldBehaveLikeVotes } = require('./Votes.behavior'); + +const Votes = artifacts.require('$VotesMock'); + +contract('Votes', function (accounts) { + const [account1, account2, account3] = accounts; + beforeEach(async function () { + this.name = 'My Vote'; + this.votes = await Votes.new(this.name, '1'); + }); + + it('starts with zero votes', async function () { + expect(await this.votes.getTotalSupply()).to.be.bignumber.equal('0'); + }); + + describe('performs voting operations', function () { + beforeEach(async function () { + this.tx1 = await this.votes.$_mint(account1, 1); + this.tx2 = await this.votes.$_mint(account2, 1); + this.tx3 = await this.votes.$_mint(account3, 1); + }); + + it('reverts if block number >= current block', async function () { + await expectRevert(this.votes.getPastTotalSupply(this.tx3.receipt.blockNumber + 1), 'Votes: block not yet mined'); + }); + + it('delegates', async function () { + await this.votes.delegate(account3, account2); + + expect(await this.votes.delegates(account3)).to.be.equal(account2); + }); + + it('returns total amount of votes', async function () { + expect(await this.votes.getTotalSupply()).to.be.bignumber.equal('3'); + }); + }); + + describe('performs voting workflow', function () { + beforeEach(async function () { + this.chainId = await getChainId(); + this.account1 = account1; + this.account2 = account2; + this.account1Delegatee = account2; + this.NFT0 = new BN('10000000000000000000000000'); + this.NFT1 = new BN('10'); + this.NFT2 = new BN('20'); + this.NFT3 = new BN('30'); + }); + + shouldBehaveLikeVotes(); + }); +}); diff --git a/lib/openzeppelin-contracts/test/helpers/chainid.js b/lib/openzeppelin-contracts/test/helpers/chainid.js new file mode 100644 index 0000000..58757eb --- /dev/null +++ b/lib/openzeppelin-contracts/test/helpers/chainid.js @@ -0,0 +1,10 @@ +const hre = require('hardhat'); + +async function getChainId() { + const chainIdHex = await hre.network.provider.send('eth_chainId', []); + return new hre.web3.utils.BN(chainIdHex, 'hex'); +} + +module.exports = { + getChainId, +}; diff --git a/lib/openzeppelin-contracts/test/helpers/create2.js b/lib/openzeppelin-contracts/test/helpers/create2.js new file mode 100644 index 0000000..afe07da --- /dev/null +++ b/lib/openzeppelin-contracts/test/helpers/create2.js @@ -0,0 +1,11 @@ +function computeCreate2Address(saltHex, bytecode, deployer) { + return web3.utils.toChecksumAddress( + `0x${web3.utils + .sha3(`0x${['ff', deployer, saltHex, web3.utils.soliditySha3(bytecode)].map(x => x.replace(/0x/, '')).join('')}`) + .slice(-40)}`, + ); +} + +module.exports = { + computeCreate2Address, +}; diff --git a/lib/openzeppelin-contracts/test/helpers/crosschain.js b/lib/openzeppelin-contracts/test/helpers/crosschain.js new file mode 100644 index 0000000..9e6ff96 --- /dev/null +++ b/lib/openzeppelin-contracts/test/helpers/crosschain.js @@ -0,0 +1,61 @@ +const { promisify } = require('util'); + +const BridgeAMBMock = artifacts.require('BridgeAMBMock'); +const BridgeArbitrumL1Mock = artifacts.require('BridgeArbitrumL1Mock'); +const BridgeArbitrumL2Mock = artifacts.require('BridgeArbitrumL2Mock'); +const BridgeOptimismMock = artifacts.require('BridgeOptimismMock'); +const BridgePolygonChildMock = artifacts.require('BridgePolygonChildMock'); + +class BridgeHelper { + static async deploy(type) { + return new BridgeHelper(await deployBridge(type)); + } + + constructor(bridge) { + this.bridge = bridge; + this.address = bridge.address; + } + + call(from, target, selector = undefined, args = []) { + return this.bridge.relayAs( + target.address || target, + selector ? target.contract.methods[selector](...args).encodeABI() : '0x', + from, + ); + } +} + +async function deployBridge(type = 'Arbitrum-L2') { + switch (type) { + case 'AMB': + return BridgeAMBMock.new(); + + case 'Arbitrum-L1': + return BridgeArbitrumL1Mock.new(); + + case 'Arbitrum-L2': { + const instance = await BridgeArbitrumL2Mock.new(); + const code = await web3.eth.getCode(instance.address); + await promisify(web3.currentProvider.send.bind(web3.currentProvider))({ + jsonrpc: '2.0', + method: 'hardhat_setCode', + params: ['0x0000000000000000000000000000000000000064', code], + id: new Date().getTime(), + }); + return BridgeArbitrumL2Mock.at('0x0000000000000000000000000000000000000064'); + } + + case 'Optimism': + return BridgeOptimismMock.new(); + + case 'Polygon-Child': + return BridgePolygonChildMock.new(); + + default: + throw new Error(`CrossChain: ${type} is not supported`); + } +} + +module.exports = { + BridgeHelper, +}; diff --git a/lib/openzeppelin-contracts/test/helpers/customError.js b/lib/openzeppelin-contracts/test/helpers/customError.js new file mode 100644 index 0000000..3cfcd72 --- /dev/null +++ b/lib/openzeppelin-contracts/test/helpers/customError.js @@ -0,0 +1,24 @@ +const { config } = require('hardhat'); + +const optimizationsEnabled = config.solidity.compilers.some(c => c.settings.optimizer.enabled); + +/** Revert handler that supports custom errors. */ +async function expectRevertCustomError(promise, reason) { + try { + await promise; + expect.fail("Expected promise to throw but it didn't"); + } catch (revert) { + if (reason) { + if (optimizationsEnabled) { + // Optimizations currently mess with Hardhat's decoding of custom errors + expect(revert.message).to.include.oneOf([reason, 'unrecognized return data or custom error']); + } else { + expect(revert.message).to.include(reason); + } + } + } +} + +module.exports = { + expectRevertCustomError, +}; diff --git a/lib/openzeppelin-contracts/test/helpers/eip712.js b/lib/openzeppelin-contracts/test/helpers/eip712.js new file mode 100644 index 0000000..9851df6 --- /dev/null +++ b/lib/openzeppelin-contracts/test/helpers/eip712.js @@ -0,0 +1,48 @@ +const ethSigUtil = require('eth-sig-util'); +const keccak256 = require('keccak256'); + +const EIP712Domain = [ + { name: 'name', type: 'string' }, + { name: 'version', type: 'string' }, + { name: 'chainId', type: 'uint256' }, + { name: 'verifyingContract', type: 'address' }, +]; + +const Permit = [ + { name: 'owner', type: 'address' }, + { name: 'spender', type: 'address' }, + { name: 'value', type: 'uint256' }, + { name: 'nonce', type: 'uint256' }, + { name: 'deadline', type: 'uint256' }, +]; + +function bufferToHexString(buffer) { + return '0x' + buffer.toString('hex'); +} + +function hexStringToBuffer(hexstr) { + return Buffer.from(hexstr.replace(/^0x/, ''), 'hex'); +} + +async function domainSeparator({ name, version, chainId, verifyingContract }) { + return bufferToHexString( + ethSigUtil.TypedDataUtils.hashStruct( + 'EIP712Domain', + { name, version, chainId, verifyingContract }, + { EIP712Domain }, + ), + ); +} + +async function hashTypedData(domain, structHash) { + return domainSeparator(domain).then(separator => + bufferToHexString(keccak256(Buffer.concat(['0x1901', separator, structHash].map(str => hexStringToBuffer(str))))), + ); +} + +module.exports = { + EIP712Domain, + Permit, + domainSeparator, + hashTypedData, +}; diff --git a/lib/openzeppelin-contracts/test/helpers/enums.js b/lib/openzeppelin-contracts/test/helpers/enums.js new file mode 100644 index 0000000..ced6c38 --- /dev/null +++ b/lib/openzeppelin-contracts/test/helpers/enums.js @@ -0,0 +1,12 @@ +const { BN } = require('@openzeppelin/test-helpers'); + +function Enum(...options) { + return Object.fromEntries(options.map((key, i) => [key, new BN(i)])); +} + +module.exports = { + Enum, + ProposalState: Enum('Pending', 'Active', 'Canceled', 'Defeated', 'Succeeded', 'Queued', 'Expired', 'Executed'), + VoteType: Enum('Against', 'For', 'Abstain'), + Rounding: Enum('Down', 'Up', 'Zero'), +}; diff --git a/lib/openzeppelin-contracts/test/helpers/erc1967.js b/lib/openzeppelin-contracts/test/helpers/erc1967.js new file mode 100644 index 0000000..9abbcc8 --- /dev/null +++ b/lib/openzeppelin-contracts/test/helpers/erc1967.js @@ -0,0 +1,24 @@ +const ImplementationLabel = 'eip1967.proxy.implementation'; +const AdminLabel = 'eip1967.proxy.admin'; +const BeaconLabel = 'eip1967.proxy.beacon'; + +function labelToSlot(label) { + return '0x' + web3.utils.toBN(web3.utils.keccak256(label)).subn(1).toString(16); +} + +function getSlot(address, slot) { + return web3.eth.getStorageAt( + web3.utils.isAddress(address) ? address : address.address, + web3.utils.isHex(slot) ? slot : labelToSlot(slot), + ); +} + +module.exports = { + ImplementationLabel, + AdminLabel, + BeaconLabel, + ImplementationSlot: labelToSlot(ImplementationLabel), + AdminSlot: labelToSlot(AdminLabel), + BeaconSlot: labelToSlot(BeaconLabel), + getSlot, +}; diff --git a/lib/openzeppelin-contracts/test/helpers/governance.js b/lib/openzeppelin-contracts/test/helpers/governance.js new file mode 100644 index 0000000..ff341aa --- /dev/null +++ b/lib/openzeppelin-contracts/test/helpers/governance.js @@ -0,0 +1,190 @@ +const { time } = require('@openzeppelin/test-helpers'); + +function zip(...args) { + return Array(Math.max(...args.map(array => array.length))) + .fill() + .map((_, i) => args.map(array => array[i])); +} + +function concatHex(...args) { + return web3.utils.bytesToHex([].concat(...args.map(h => web3.utils.hexToBytes(h || '0x')))); +} + +function concatOpts(args, opts = null) { + return opts ? args.concat(opts) : args; +} + +class GovernorHelper { + constructor(governor) { + this.governor = governor; + } + + delegate(delegation = {}, opts = null) { + return Promise.all([ + delegation.token.delegate(delegation.to, { from: delegation.to }), + delegation.value && delegation.token.transfer(...concatOpts([delegation.to, delegation.value]), opts), + delegation.tokenId && + delegation.token + .ownerOf(delegation.tokenId) + .then(owner => + delegation.token.transferFrom(...concatOpts([owner, delegation.to, delegation.tokenId], opts)), + ), + ]); + } + + propose(opts = null) { + const proposal = this.currentProposal; + + return this.governor.methods[ + proposal.useCompatibilityInterface + ? 'propose(address[],uint256[],string[],bytes[],string)' + : 'propose(address[],uint256[],bytes[],string)' + ](...concatOpts(proposal.fullProposal, opts)); + } + + queue(opts = null) { + const proposal = this.currentProposal; + + return proposal.useCompatibilityInterface + ? this.governor.methods['queue(uint256)'](...concatOpts([proposal.id], opts)) + : this.governor.methods['queue(address[],uint256[],bytes[],bytes32)']( + ...concatOpts(proposal.shortProposal, opts), + ); + } + + execute(opts = null) { + const proposal = this.currentProposal; + + return proposal.useCompatibilityInterface + ? this.governor.methods['execute(uint256)'](...concatOpts([proposal.id], opts)) + : this.governor.methods['execute(address[],uint256[],bytes[],bytes32)']( + ...concatOpts(proposal.shortProposal, opts), + ); + } + + cancel(opts = null) { + const proposal = this.currentProposal; + + return proposal.useCompatibilityInterface + ? this.governor.methods['cancel(uint256)'](...concatOpts([proposal.id], opts)) + : this.governor.methods['$_cancel(address[],uint256[],bytes[],bytes32)']( + ...concatOpts(proposal.shortProposal, opts), + ); + } + + vote(vote = {}, opts = null) { + const proposal = this.currentProposal; + + return vote.signature + ? // if signature, and either params or reason → + vote.params || vote.reason + ? vote + .signature({ + proposalId: proposal.id, + support: vote.support, + reason: vote.reason || '', + params: vote.params || '', + }) + .then(({ v, r, s }) => + this.governor.castVoteWithReasonAndParamsBySig( + ...concatOpts([proposal.id, vote.support, vote.reason || '', vote.params || '', v, r, s], opts), + ), + ) + : vote + .signature({ + proposalId: proposal.id, + support: vote.support, + }) + .then(({ v, r, s }) => + this.governor.castVoteBySig(...concatOpts([proposal.id, vote.support, v, r, s], opts)), + ) + : vote.params + ? // otherwise if params + this.governor.castVoteWithReasonAndParams( + ...concatOpts([proposal.id, vote.support, vote.reason || '', vote.params], opts), + ) + : vote.reason + ? // otherwise if reason + this.governor.castVoteWithReason(...concatOpts([proposal.id, vote.support, vote.reason], opts)) + : this.governor.castVote(...concatOpts([proposal.id, vote.support], opts)); + } + + waitForSnapshot(offset = 0) { + const proposal = this.currentProposal; + return this.governor + .proposalSnapshot(proposal.id) + .then(blockNumber => time.advanceBlockTo(blockNumber.addn(offset))); + } + + waitForDeadline(offset = 0) { + const proposal = this.currentProposal; + return this.governor + .proposalDeadline(proposal.id) + .then(blockNumber => time.advanceBlockTo(blockNumber.addn(offset))); + } + + waitForEta(offset = 0) { + const proposal = this.currentProposal; + return this.governor.proposalEta(proposal.id).then(timestamp => time.increaseTo(timestamp.addn(offset))); + } + + /** + * Specify a proposal either as + * 1) an array of objects [{ target, value, data, signature? }] + * 2) an object of arrays { targets: [], values: [], data: [], signatures?: [] } + */ + setProposal(actions, description) { + let targets, values, signatures, data, useCompatibilityInterface; + + if (Array.isArray(actions)) { + useCompatibilityInterface = actions.some(a => 'signature' in a); + targets = actions.map(a => a.target); + values = actions.map(a => a.value || '0'); + signatures = actions.map(a => a.signature || ''); + data = actions.map(a => a.data || '0x'); + } else { + useCompatibilityInterface = Array.isArray(actions.signatures); + ({ targets, values, signatures = [], data } = actions); + } + + const fulldata = zip( + signatures.map(s => s && web3.eth.abi.encodeFunctionSignature(s)), + data, + ).map(hexs => concatHex(...hexs)); + + const descriptionHash = web3.utils.keccak256(description); + + // condensed version for queueing end executing + const shortProposal = [targets, values, fulldata, descriptionHash]; + + // full version for proposing + const fullProposal = [targets, values, ...(useCompatibilityInterface ? [signatures] : []), data, description]; + + // proposal id + const id = web3.utils.toBN( + web3.utils.keccak256( + web3.eth.abi.encodeParameters(['address[]', 'uint256[]', 'bytes[]', 'bytes32'], shortProposal), + ), + ); + + this.currentProposal = { + id, + targets, + values, + signatures, + data, + fulldata, + description, + descriptionHash, + shortProposal, + fullProposal, + useCompatibilityInterface, + }; + + return this.currentProposal; + } +} + +module.exports = { + GovernorHelper, +}; diff --git a/lib/openzeppelin-contracts/test/helpers/map-values.js b/lib/openzeppelin-contracts/test/helpers/map-values.js new file mode 100644 index 0000000..d2f7b2a --- /dev/null +++ b/lib/openzeppelin-contracts/test/helpers/map-values.js @@ -0,0 +1,7 @@ +function mapValues(obj, fn) { + return Object.fromEntries([...Object.entries(obj)].map(([k, v]) => [k, fn(v)])); +} + +module.exports = { + mapValues, +}; diff --git a/lib/openzeppelin-contracts/test/helpers/sign.js b/lib/openzeppelin-contracts/test/helpers/sign.js new file mode 100644 index 0000000..417ef59 --- /dev/null +++ b/lib/openzeppelin-contracts/test/helpers/sign.js @@ -0,0 +1,47 @@ +function toEthSignedMessageHash(messageHex) { + const messageBuffer = Buffer.from(messageHex.substring(2), 'hex'); + const prefix = Buffer.from(`\u0019Ethereum Signed Message:\n${messageBuffer.length}`); + return web3.utils.sha3(Buffer.concat([prefix, messageBuffer])); +} + +/** + * Create a signer between a contract and a signer for a voucher of method, args, and redeemer + * Note that `method` is the web3 method, not the truffle-contract method + * @param contract TruffleContract + * @param signer address + * @param redeemer address + * @param methodName string + * @param methodArgs any[] + */ +const getSignFor = + (contract, signer) => + (redeemer, methodName, methodArgs = []) => { + const parts = [contract.address, redeemer]; + + const REAL_SIGNATURE_SIZE = 2 * 65; // 65 bytes in hexadecimal string length + const PADDED_SIGNATURE_SIZE = 2 * 96; // 96 bytes in hexadecimal string length + const DUMMY_SIGNATURE = `0x${web3.utils.padLeft('', REAL_SIGNATURE_SIZE)}`; + + // if we have a method, add it to the parts that we're signing + if (methodName) { + if (methodArgs.length > 0) { + parts.push( + contract.contract.methods[methodName](...methodArgs.concat([DUMMY_SIGNATURE])) + .encodeABI() + .slice(0, -1 * PADDED_SIGNATURE_SIZE), + ); + } else { + const abi = contract.abi.find(abi => abi.name === methodName); + parts.push(abi.signature); + } + } + + // return the signature of the "Ethereum Signed Message" hash of the hash of `parts` + const messageHex = web3.utils.soliditySha3(...parts); + return web3.eth.sign(messageHex, signer); + }; + +module.exports = { + toEthSignedMessageHash, + getSignFor, +}; diff --git a/lib/openzeppelin-contracts/test/helpers/txpool.js b/lib/openzeppelin-contracts/test/helpers/txpool.js new file mode 100644 index 0000000..ecdba54 --- /dev/null +++ b/lib/openzeppelin-contracts/test/helpers/txpool.js @@ -0,0 +1,38 @@ +const { network } = require('hardhat'); +const { promisify } = require('util'); + +const queue = promisify(setImmediate); + +async function countPendingTransactions() { + return parseInt(await network.provider.send('eth_getBlockTransactionCountByNumber', ['pending'])); +} + +async function batchInBlock(txs) { + try { + // disable auto-mining + await network.provider.send('evm_setAutomine', [false]); + // send all transactions + const promises = txs.map(fn => fn()); + // wait for node to have all pending transactions + while (txs.length > (await countPendingTransactions())) { + await queue(); + } + // mine one block + await network.provider.send('evm_mine'); + // fetch receipts + const receipts = await Promise.all(promises); + // Sanity check, all tx should be in the same block + const minedBlocks = new Set(receipts.map(({ receipt }) => receipt.blockNumber)); + expect(minedBlocks.size).to.equal(1); + + return receipts; + } finally { + // enable auto-mining + await network.provider.send('evm_setAutomine', [true]); + } +} + +module.exports = { + countPendingTransactions, + batchInBlock, +}; diff --git a/lib/openzeppelin-contracts/test/metatx/ERC2771Context.test.js b/lib/openzeppelin-contracts/test/metatx/ERC2771Context.test.js new file mode 100644 index 0000000..7887777 --- /dev/null +++ b/lib/openzeppelin-contracts/test/metatx/ERC2771Context.test.js @@ -0,0 +1,110 @@ +const ethSigUtil = require('eth-sig-util'); +const Wallet = require('ethereumjs-wallet').default; +const { EIP712Domain } = require('../helpers/eip712'); + +const { expectEvent } = require('@openzeppelin/test-helpers'); +const { expect } = require('chai'); + +const ERC2771ContextMock = artifacts.require('ERC2771ContextMock'); +const MinimalForwarder = artifacts.require('MinimalForwarder'); +const ContextMockCaller = artifacts.require('ContextMockCaller'); + +const { shouldBehaveLikeRegularContext } = require('../utils/Context.behavior'); +const { getChainId } = require('../helpers/chainid'); + +const name = 'MinimalForwarder'; +const version = '0.0.1'; + +contract('ERC2771Context', function (accounts) { + beforeEach(async function () { + this.forwarder = await MinimalForwarder.new(); + this.recipient = await ERC2771ContextMock.new(this.forwarder.address); + + this.domain = { + name, + version, + chainId: await getChainId(), + verifyingContract: this.forwarder.address, + }; + this.types = { + EIP712Domain, + ForwardRequest: [ + { name: 'from', type: 'address' }, + { name: 'to', type: 'address' }, + { name: 'value', type: 'uint256' }, + { name: 'gas', type: 'uint256' }, + { name: 'nonce', type: 'uint256' }, + { name: 'data', type: 'bytes' }, + ], + }; + }); + + it('recognize trusted forwarder', async function () { + expect(await this.recipient.isTrustedForwarder(this.forwarder.address)); + }); + + context('when called directly', function () { + beforeEach(async function () { + this.context = this.recipient; // The Context behavior expects the contract in this.context + this.caller = await ContextMockCaller.new(); + }); + + shouldBehaveLikeRegularContext(...accounts); + }); + + context('when receiving a relayed call', function () { + beforeEach(async function () { + this.wallet = Wallet.generate(); + this.sender = web3.utils.toChecksumAddress(this.wallet.getAddressString()); + this.data = { + types: this.types, + domain: this.domain, + primaryType: 'ForwardRequest', + }; + }); + + describe('msgSender', function () { + it('returns the relayed transaction original sender', async function () { + const data = this.recipient.contract.methods.msgSender().encodeABI(); + + const req = { + from: this.sender, + to: this.recipient.address, + value: '0', + gas: '100000', + nonce: (await this.forwarder.getNonce(this.sender)).toString(), + data, + }; + + const sign = ethSigUtil.signTypedMessage(this.wallet.getPrivateKey(), { data: { ...this.data, message: req } }); + expect(await this.forwarder.verify(req, sign)).to.equal(true); + + const { tx } = await this.forwarder.execute(req, sign); + await expectEvent.inTransaction(tx, ERC2771ContextMock, 'Sender', { sender: this.sender }); + }); + }); + + describe('msgData', function () { + it('returns the relayed transaction original data', async function () { + const integerValue = '42'; + const stringValue = 'OpenZeppelin'; + const data = this.recipient.contract.methods.msgData(integerValue, stringValue).encodeABI(); + + const req = { + from: this.sender, + to: this.recipient.address, + value: '0', + gas: '100000', + nonce: (await this.forwarder.getNonce(this.sender)).toString(), + data, + }; + + const sign = ethSigUtil.signTypedMessage(this.wallet.getPrivateKey(), { data: { ...this.data, message: req } }); + expect(await this.forwarder.verify(req, sign)).to.equal(true); + + const { tx } = await this.forwarder.execute(req, sign); + await expectEvent.inTransaction(tx, ERC2771ContextMock, 'Data', { data, integerValue, stringValue }); + }); + }); + }); +}); diff --git a/lib/openzeppelin-contracts/test/metatx/MinimalForwarder.test.js b/lib/openzeppelin-contracts/test/metatx/MinimalForwarder.test.js new file mode 100644 index 0000000..24de171 --- /dev/null +++ b/lib/openzeppelin-contracts/test/metatx/MinimalForwarder.test.js @@ -0,0 +1,178 @@ +const ethSigUtil = require('eth-sig-util'); +const Wallet = require('ethereumjs-wallet').default; +const { EIP712Domain } = require('../helpers/eip712'); + +const { expectRevert, constants } = require('@openzeppelin/test-helpers'); +const { expect } = require('chai'); + +const { getChainId } = require('../helpers/chainid'); + +const MinimalForwarder = artifacts.require('MinimalForwarder'); +const CallReceiverMock = artifacts.require('CallReceiverMock'); + +const name = 'MinimalForwarder'; +const version = '0.0.1'; + +contract('MinimalForwarder', function (accounts) { + beforeEach(async function () { + this.forwarder = await MinimalForwarder.new(); + this.domain = { + name, + version, + chainId: await getChainId(), + verifyingContract: this.forwarder.address, + }; + this.types = { + EIP712Domain, + ForwardRequest: [ + { name: 'from', type: 'address' }, + { name: 'to', type: 'address' }, + { name: 'value', type: 'uint256' }, + { name: 'gas', type: 'uint256' }, + { name: 'nonce', type: 'uint256' }, + { name: 'data', type: 'bytes' }, + ], + }; + }); + + context('with message', function () { + beforeEach(async function () { + this.wallet = Wallet.generate(); + this.sender = web3.utils.toChecksumAddress(this.wallet.getAddressString()); + this.req = { + from: this.sender, + to: constants.ZERO_ADDRESS, + value: '0', + gas: '100000', + nonce: Number(await this.forwarder.getNonce(this.sender)), + data: '0x', + }; + this.sign = () => + ethSigUtil.signTypedMessage(this.wallet.getPrivateKey(), { + data: { + types: this.types, + domain: this.domain, + primaryType: 'ForwardRequest', + message: this.req, + }, + }); + }); + + context('verify', function () { + context('valid signature', function () { + beforeEach(async function () { + expect(await this.forwarder.getNonce(this.req.from)).to.be.bignumber.equal(web3.utils.toBN(this.req.nonce)); + }); + + it('success', async function () { + expect(await this.forwarder.verify(this.req, this.sign())).to.be.equal(true); + }); + + afterEach(async function () { + expect(await this.forwarder.getNonce(this.req.from)).to.be.bignumber.equal(web3.utils.toBN(this.req.nonce)); + }); + }); + + context('invalid signature', function () { + it('tampered from', async function () { + expect(await this.forwarder.verify({ ...this.req, from: accounts[0] }, this.sign())).to.be.equal(false); + }); + it('tampered to', async function () { + expect(await this.forwarder.verify({ ...this.req, to: accounts[0] }, this.sign())).to.be.equal(false); + }); + it('tampered value', async function () { + expect(await this.forwarder.verify({ ...this.req, value: web3.utils.toWei('1') }, this.sign())).to.be.equal( + false, + ); + }); + it('tampered nonce', async function () { + expect(await this.forwarder.verify({ ...this.req, nonce: this.req.nonce + 1 }, this.sign())).to.be.equal( + false, + ); + }); + it('tampered data', async function () { + expect(await this.forwarder.verify({ ...this.req, data: '0x1742' }, this.sign())).to.be.equal(false); + }); + it('tampered signature', async function () { + const tamperedsign = web3.utils.hexToBytes(this.sign()); + tamperedsign[42] ^= 0xff; + expect(await this.forwarder.verify(this.req, web3.utils.bytesToHex(tamperedsign))).to.be.equal(false); + }); + }); + }); + + context('execute', function () { + context('valid signature', function () { + beforeEach(async function () { + expect(await this.forwarder.getNonce(this.req.from)).to.be.bignumber.equal(web3.utils.toBN(this.req.nonce)); + }); + + it('success', async function () { + await this.forwarder.execute(this.req, this.sign()); // expect to not revert + }); + + afterEach(async function () { + expect(await this.forwarder.getNonce(this.req.from)).to.be.bignumber.equal( + web3.utils.toBN(this.req.nonce + 1), + ); + }); + }); + + context('invalid signature', function () { + it('tampered from', async function () { + await expectRevert( + this.forwarder.execute({ ...this.req, from: accounts[0] }, this.sign()), + 'MinimalForwarder: signature does not match request', + ); + }); + it('tampered to', async function () { + await expectRevert( + this.forwarder.execute({ ...this.req, to: accounts[0] }, this.sign()), + 'MinimalForwarder: signature does not match request', + ); + }); + it('tampered value', async function () { + await expectRevert( + this.forwarder.execute({ ...this.req, value: web3.utils.toWei('1') }, this.sign()), + 'MinimalForwarder: signature does not match request', + ); + }); + it('tampered nonce', async function () { + await expectRevert( + this.forwarder.execute({ ...this.req, nonce: this.req.nonce + 1 }, this.sign()), + 'MinimalForwarder: signature does not match request', + ); + }); + it('tampered data', async function () { + await expectRevert( + this.forwarder.execute({ ...this.req, data: '0x1742' }, this.sign()), + 'MinimalForwarder: signature does not match request', + ); + }); + it('tampered signature', async function () { + const tamperedsign = web3.utils.hexToBytes(this.sign()); + tamperedsign[42] ^= 0xff; + await expectRevert( + this.forwarder.execute(this.req, web3.utils.bytesToHex(tamperedsign)), + 'MinimalForwarder: signature does not match request', + ); + }); + }); + + it('bubble out of gas', async function () { + const receiver = await CallReceiverMock.new(); + const gasAvailable = 100000; + this.req.to = receiver.address; + this.req.data = receiver.contract.methods.mockFunctionOutOfGas().encodeABI(); + this.req.gas = 1000000; + + await expectRevert.assertion(this.forwarder.execute(this.req, this.sign(), { gas: gasAvailable })); + + const { transactions } = await web3.eth.getBlock('latest'); + const { gasUsed } = await web3.eth.getTransactionReceipt(transactions[0]); + + expect(gasUsed).to.be.equal(gasAvailable); + }); + }); + }); +}); diff --git a/lib/openzeppelin-contracts/test/migrate-imports.test.js b/lib/openzeppelin-contracts/test/migrate-imports.test.js new file mode 100644 index 0000000..7ec9a97 --- /dev/null +++ b/lib/openzeppelin-contracts/test/migrate-imports.test.js @@ -0,0 +1,32 @@ +const path = require('path'); +const { + promises: fs, + constants: { F_OK }, +} = require('fs'); +const { expect } = require('chai'); + +const { pathUpdates, updateImportPaths, getUpgradeablePath } = require('../scripts/migrate-imports.js'); + +describe('migrate-imports.js', function () { + it('every new path exists', async function () { + for (const p of Object.values(pathUpdates)) { + try { + await fs.access(path.join('contracts', p), F_OK); + } catch (e) { + await fs.access(path.join('contracts', getUpgradeablePath(p)), F_OK); + } + } + }); + + it('replaces import paths in a file', async function () { + const source = ` +import '@openzeppelin/contracts/math/Math.sol'; +import '@openzeppelin/contracts-upgradeable/math/MathUpgradeable.sol'; + `; + const expected = ` +import '@openzeppelin/contracts/utils/math/Math.sol'; +import '@openzeppelin/contracts-upgradeable/utils/math/MathUpgradeable.sol'; + `; + expect(updateImportPaths(source)).to.equal(expected); + }); +}); diff --git a/lib/openzeppelin-contracts/test/proxy/Clones.behaviour.js b/lib/openzeppelin-contracts/test/proxy/Clones.behaviour.js new file mode 100644 index 0000000..b5fd3c5 --- /dev/null +++ b/lib/openzeppelin-contracts/test/proxy/Clones.behaviour.js @@ -0,0 +1,136 @@ +const { expectRevert } = require('@openzeppelin/test-helpers'); + +const { expect } = require('chai'); + +const DummyImplementation = artifacts.require('DummyImplementation'); + +module.exports = function shouldBehaveLikeClone(createClone) { + before('deploy implementation', async function () { + this.implementation = web3.utils.toChecksumAddress((await DummyImplementation.new()).address); + }); + + const assertProxyInitialization = function ({ value, balance }) { + it('initializes the proxy', async function () { + const dummy = new DummyImplementation(this.proxy); + expect(await dummy.value()).to.be.bignumber.equal(value.toString()); + }); + + it('has expected balance', async function () { + expect(await web3.eth.getBalance(this.proxy)).to.be.bignumber.equal(balance.toString()); + }); + }; + + describe('initialization without parameters', function () { + describe('non payable', function () { + const expectedInitializedValue = 10; + const initializeData = new DummyImplementation('').contract.methods['initializeNonPayable()']().encodeABI(); + + describe('when not sending balance', function () { + beforeEach('creating proxy', async function () { + this.proxy = (await createClone(this.implementation, initializeData)).address; + }); + + assertProxyInitialization({ + value: expectedInitializedValue, + balance: 0, + }); + }); + + describe('when sending some balance', function () { + const value = 10e5; + + it('reverts', async function () { + await expectRevert.unspecified(createClone(this.implementation, initializeData, { value })); + }); + }); + }); + + describe('payable', function () { + const expectedInitializedValue = 100; + const initializeData = new DummyImplementation('').contract.methods['initializePayable()']().encodeABI(); + + describe('when not sending balance', function () { + beforeEach('creating proxy', async function () { + this.proxy = (await createClone(this.implementation, initializeData)).address; + }); + + assertProxyInitialization({ + value: expectedInitializedValue, + balance: 0, + }); + }); + + describe('when sending some balance', function () { + const value = 10e5; + + beforeEach('creating proxy', async function () { + this.proxy = (await createClone(this.implementation, initializeData, { value })).address; + }); + + assertProxyInitialization({ + value: expectedInitializedValue, + balance: value, + }); + }); + }); + }); + + describe('initialization with parameters', function () { + describe('non payable', function () { + const expectedInitializedValue = 10; + const initializeData = new DummyImplementation('').contract.methods + .initializeNonPayableWithValue(expectedInitializedValue) + .encodeABI(); + + describe('when not sending balance', function () { + beforeEach('creating proxy', async function () { + this.proxy = (await createClone(this.implementation, initializeData)).address; + }); + + assertProxyInitialization({ + value: expectedInitializedValue, + balance: 0, + }); + }); + + describe('when sending some balance', function () { + const value = 10e5; + + it('reverts', async function () { + await expectRevert.unspecified(createClone(this.implementation, initializeData, { value })); + }); + }); + }); + + describe('payable', function () { + const expectedInitializedValue = 42; + const initializeData = new DummyImplementation('').contract.methods + .initializePayableWithValue(expectedInitializedValue) + .encodeABI(); + + describe('when not sending balance', function () { + beforeEach('creating proxy', async function () { + this.proxy = (await createClone(this.implementation, initializeData)).address; + }); + + assertProxyInitialization({ + value: expectedInitializedValue, + balance: 0, + }); + }); + + describe('when sending some balance', function () { + const value = 10e5; + + beforeEach('creating proxy', async function () { + this.proxy = (await createClone(this.implementation, initializeData, { value })).address; + }); + + assertProxyInitialization({ + value: expectedInitializedValue, + balance: value, + }); + }); + }); + }); +}; diff --git a/lib/openzeppelin-contracts/test/proxy/Clones.test.js b/lib/openzeppelin-contracts/test/proxy/Clones.test.js new file mode 100644 index 0000000..947b2ed --- /dev/null +++ b/lib/openzeppelin-contracts/test/proxy/Clones.test.js @@ -0,0 +1,61 @@ +const { expectEvent, expectRevert } = require('@openzeppelin/test-helpers'); +const { computeCreate2Address } = require('../helpers/create2'); +const { expect } = require('chai'); + +const shouldBehaveLikeClone = require('./Clones.behaviour'); + +const Clones = artifacts.require('$Clones'); + +contract('Clones', function (accounts) { + const [deployer] = accounts; + + describe('clone', function () { + shouldBehaveLikeClone(async (implementation, initData, opts = {}) => { + const factory = await Clones.new(); + const receipt = await factory.$clone(implementation); + const address = receipt.logs.find(({ event }) => event === 'return$clone').args.instance; + await web3.eth.sendTransaction({ from: deployer, to: address, value: opts.value, data: initData }); + return { address }; + }); + }); + + describe('cloneDeterministic', function () { + shouldBehaveLikeClone(async (implementation, initData, opts = {}) => { + const salt = web3.utils.randomHex(32); + const factory = await Clones.new(); + const receipt = await factory.$cloneDeterministic(implementation, salt); + const address = receipt.logs.find(({ event }) => event === 'return$cloneDeterministic').args.instance; + await web3.eth.sendTransaction({ from: deployer, to: address, value: opts.value, data: initData }); + return { address }; + }); + + it('address already used', async function () { + const implementation = web3.utils.randomHex(20); + const salt = web3.utils.randomHex(32); + const factory = await Clones.new(); + // deploy once + expectEvent(await factory.$cloneDeterministic(implementation, salt), 'return$cloneDeterministic'); + // deploy twice + await expectRevert(factory.$cloneDeterministic(implementation, salt), 'ERC1167: create2 failed'); + }); + + it('address prediction', async function () { + const implementation = web3.utils.randomHex(20); + const salt = web3.utils.randomHex(32); + const factory = await Clones.new(); + const predicted = await factory.$predictDeterministicAddress(implementation, salt); + + const creationCode = [ + '0x3d602d80600a3d3981f3363d3d373d3d3d363d73', + implementation.replace(/0x/, '').toLowerCase(), + '5af43d82803e903d91602b57fd5bf3', + ].join(''); + + expect(computeCreate2Address(salt, creationCode, factory.address)).to.be.equal(predicted); + + expectEvent(await factory.$cloneDeterministic(implementation, salt), 'return$cloneDeterministic', { + instance: predicted, + }); + }); + }); +}); diff --git a/lib/openzeppelin-contracts/test/proxy/ERC1967/ERC1967Proxy.test.js b/lib/openzeppelin-contracts/test/proxy/ERC1967/ERC1967Proxy.test.js new file mode 100644 index 0000000..22df960 --- /dev/null +++ b/lib/openzeppelin-contracts/test/proxy/ERC1967/ERC1967Proxy.test.js @@ -0,0 +1,13 @@ +const shouldBehaveLikeProxy = require('../Proxy.behaviour'); + +const ERC1967Proxy = artifacts.require('ERC1967Proxy'); + +contract('ERC1967Proxy', function (accounts) { + const [proxyAdminOwner] = accounts; + + const createProxy = async function (implementation, _admin, initData, opts) { + return ERC1967Proxy.new(implementation, initData, opts); + }; + + shouldBehaveLikeProxy(createProxy, undefined, proxyAdminOwner); +}); diff --git a/lib/openzeppelin-contracts/test/proxy/Proxy.behaviour.js b/lib/openzeppelin-contracts/test/proxy/Proxy.behaviour.js new file mode 100644 index 0000000..0867b93 --- /dev/null +++ b/lib/openzeppelin-contracts/test/proxy/Proxy.behaviour.js @@ -0,0 +1,225 @@ +const { expectRevert } = require('@openzeppelin/test-helpers'); +const { getSlot, ImplementationSlot } = require('../helpers/erc1967'); + +const { expect } = require('chai'); + +const DummyImplementation = artifacts.require('DummyImplementation'); + +module.exports = function shouldBehaveLikeProxy(createProxy, proxyAdminAddress, proxyCreator) { + it('cannot be initialized with a non-contract address', async function () { + const nonContractAddress = proxyCreator; + const initializeData = Buffer.from(''); + await expectRevert.unspecified( + createProxy(nonContractAddress, proxyAdminAddress, initializeData, { + from: proxyCreator, + }), + ); + }); + + before('deploy implementation', async function () { + this.implementation = web3.utils.toChecksumAddress((await DummyImplementation.new()).address); + }); + + const assertProxyInitialization = function ({ value, balance }) { + it('sets the implementation address', async function () { + const implementationSlot = await getSlot(this.proxy, ImplementationSlot); + const implementationAddress = web3.utils.toChecksumAddress(implementationSlot.substr(-40)); + expect(implementationAddress).to.be.equal(this.implementation); + }); + + it('initializes the proxy', async function () { + const dummy = new DummyImplementation(this.proxy); + expect(await dummy.value()).to.be.bignumber.equal(value.toString()); + }); + + it('has expected balance', async function () { + expect(await web3.eth.getBalance(this.proxy)).to.be.bignumber.equal(balance.toString()); + }); + }; + + describe('without initialization', function () { + const initializeData = Buffer.from(''); + + describe('when not sending balance', function () { + beforeEach('creating proxy', async function () { + this.proxy = ( + await createProxy(this.implementation, proxyAdminAddress, initializeData, { + from: proxyCreator, + }) + ).address; + }); + + assertProxyInitialization({ value: 0, balance: 0 }); + }); + + describe('when sending some balance', function () { + const value = 10e5; + + beforeEach('creating proxy', async function () { + this.proxy = ( + await createProxy(this.implementation, proxyAdminAddress, initializeData, { + from: proxyCreator, + value, + }) + ).address; + }); + + assertProxyInitialization({ value: 0, balance: value }); + }); + }); + + describe('initialization without parameters', function () { + describe('non payable', function () { + const expectedInitializedValue = 10; + const initializeData = new DummyImplementation('').contract.methods['initializeNonPayable()']().encodeABI(); + + describe('when not sending balance', function () { + beforeEach('creating proxy', async function () { + this.proxy = ( + await createProxy(this.implementation, proxyAdminAddress, initializeData, { + from: proxyCreator, + }) + ).address; + }); + + assertProxyInitialization({ + value: expectedInitializedValue, + balance: 0, + }); + }); + + describe('when sending some balance', function () { + const value = 10e5; + + it('reverts', async function () { + await expectRevert.unspecified( + createProxy(this.implementation, proxyAdminAddress, initializeData, { from: proxyCreator, value }), + ); + }); + }); + }); + + describe('payable', function () { + const expectedInitializedValue = 100; + const initializeData = new DummyImplementation('').contract.methods['initializePayable()']().encodeABI(); + + describe('when not sending balance', function () { + beforeEach('creating proxy', async function () { + this.proxy = ( + await createProxy(this.implementation, proxyAdminAddress, initializeData, { + from: proxyCreator, + }) + ).address; + }); + + assertProxyInitialization({ + value: expectedInitializedValue, + balance: 0, + }); + }); + + describe('when sending some balance', function () { + const value = 10e5; + + beforeEach('creating proxy', async function () { + this.proxy = ( + await createProxy(this.implementation, proxyAdminAddress, initializeData, { + from: proxyCreator, + value, + }) + ).address; + }); + + assertProxyInitialization({ + value: expectedInitializedValue, + balance: value, + }); + }); + }); + }); + + describe('initialization with parameters', function () { + describe('non payable', function () { + const expectedInitializedValue = 10; + const initializeData = new DummyImplementation('').contract.methods + .initializeNonPayableWithValue(expectedInitializedValue) + .encodeABI(); + + describe('when not sending balance', function () { + beforeEach('creating proxy', async function () { + this.proxy = ( + await createProxy(this.implementation, proxyAdminAddress, initializeData, { + from: proxyCreator, + }) + ).address; + }); + + assertProxyInitialization({ + value: expectedInitializedValue, + balance: 0, + }); + }); + + describe('when sending some balance', function () { + const value = 10e5; + + it('reverts', async function () { + await expectRevert.unspecified( + createProxy(this.implementation, proxyAdminAddress, initializeData, { from: proxyCreator, value }), + ); + }); + }); + }); + + describe('payable', function () { + const expectedInitializedValue = 42; + const initializeData = new DummyImplementation('').contract.methods + .initializePayableWithValue(expectedInitializedValue) + .encodeABI(); + + describe('when not sending balance', function () { + beforeEach('creating proxy', async function () { + this.proxy = ( + await createProxy(this.implementation, proxyAdminAddress, initializeData, { + from: proxyCreator, + }) + ).address; + }); + + assertProxyInitialization({ + value: expectedInitializedValue, + balance: 0, + }); + }); + + describe('when sending some balance', function () { + const value = 10e5; + + beforeEach('creating proxy', async function () { + this.proxy = ( + await createProxy(this.implementation, proxyAdminAddress, initializeData, { + from: proxyCreator, + value, + }) + ).address; + }); + + assertProxyInitialization({ + value: expectedInitializedValue, + balance: value, + }); + }); + }); + + describe('reverting initialization', function () { + const initializeData = new DummyImplementation('').contract.methods.reverts().encodeABI(); + + it('reverts', async function () { + await expectRevert( + createProxy(this.implementation, proxyAdminAddress, initializeData, { from: proxyCreator }), + 'DummyImplementation reverted', + ); + }); + }); + }); +}; diff --git a/lib/openzeppelin-contracts/test/proxy/beacon/BeaconProxy.test.js b/lib/openzeppelin-contracts/test/proxy/beacon/BeaconProxy.test.js new file mode 100644 index 0000000..968f00b --- /dev/null +++ b/lib/openzeppelin-contracts/test/proxy/beacon/BeaconProxy.test.js @@ -0,0 +1,139 @@ +const { expectRevert } = require('@openzeppelin/test-helpers'); +const { getSlot, BeaconSlot } = require('../../helpers/erc1967'); + +const { expect } = require('chai'); + +const UpgradeableBeacon = artifacts.require('UpgradeableBeacon'); +const BeaconProxy = artifacts.require('BeaconProxy'); +const DummyImplementation = artifacts.require('DummyImplementation'); +const DummyImplementationV2 = artifacts.require('DummyImplementationV2'); +const BadBeaconNoImpl = artifacts.require('BadBeaconNoImpl'); +const BadBeaconNotContract = artifacts.require('BadBeaconNotContract'); + +contract('BeaconProxy', function (accounts) { + const [anotherAccount] = accounts; + + describe('bad beacon is not accepted', async function () { + it('non-contract beacon', async function () { + await expectRevert(BeaconProxy.new(anotherAccount, '0x'), 'ERC1967: new beacon is not a contract'); + }); + + it('non-compliant beacon', async function () { + const beacon = await BadBeaconNoImpl.new(); + await expectRevert.unspecified(BeaconProxy.new(beacon.address, '0x')); + }); + + it('non-contract implementation', async function () { + const beacon = await BadBeaconNotContract.new(); + await expectRevert(BeaconProxy.new(beacon.address, '0x'), 'ERC1967: beacon implementation is not a contract'); + }); + }); + + before('deploy implementation', async function () { + this.implementationV0 = await DummyImplementation.new(); + this.implementationV1 = await DummyImplementationV2.new(); + }); + + describe('initialization', function () { + before(function () { + this.assertInitialized = async ({ value, balance }) => { + const beaconSlot = await getSlot(this.proxy, BeaconSlot); + const beaconAddress = web3.utils.toChecksumAddress(beaconSlot.substr(-40)); + expect(beaconAddress).to.equal(this.beacon.address); + + const dummy = new DummyImplementation(this.proxy.address); + expect(await dummy.value()).to.bignumber.eq(value); + + expect(await web3.eth.getBalance(this.proxy.address)).to.bignumber.eq(balance); + }; + }); + + beforeEach('deploy beacon', async function () { + this.beacon = await UpgradeableBeacon.new(this.implementationV0.address); + }); + + it('no initialization', async function () { + const data = Buffer.from(''); + const balance = '10'; + this.proxy = await BeaconProxy.new(this.beacon.address, data, { value: balance }); + await this.assertInitialized({ value: '0', balance }); + }); + + it('non-payable initialization', async function () { + const value = '55'; + const data = this.implementationV0.contract.methods.initializeNonPayableWithValue(value).encodeABI(); + this.proxy = await BeaconProxy.new(this.beacon.address, data); + await this.assertInitialized({ value, balance: '0' }); + }); + + it('payable initialization', async function () { + const value = '55'; + const data = this.implementationV0.contract.methods.initializePayableWithValue(value).encodeABI(); + const balance = '100'; + this.proxy = await BeaconProxy.new(this.beacon.address, data, { value: balance }); + await this.assertInitialized({ value, balance }); + }); + + it('reverting initialization', async function () { + const data = this.implementationV0.contract.methods.reverts().encodeABI(); + await expectRevert(BeaconProxy.new(this.beacon.address, data), 'DummyImplementation reverted'); + }); + }); + + it('upgrade a proxy by upgrading its beacon', async function () { + const beacon = await UpgradeableBeacon.new(this.implementationV0.address); + + const value = '10'; + const data = this.implementationV0.contract.methods.initializeNonPayableWithValue(value).encodeABI(); + const proxy = await BeaconProxy.new(beacon.address, data); + + const dummy = new DummyImplementation(proxy.address); + + // test initial values + expect(await dummy.value()).to.bignumber.eq(value); + + // test initial version + expect(await dummy.version()).to.eq('V1'); + + // upgrade beacon + await beacon.upgradeTo(this.implementationV1.address); + + // test upgraded version + expect(await dummy.version()).to.eq('V2'); + }); + + it('upgrade 2 proxies by upgrading shared beacon', async function () { + const value1 = '10'; + const value2 = '42'; + + const beacon = await UpgradeableBeacon.new(this.implementationV0.address); + + const proxy1InitializeData = this.implementationV0.contract.methods + .initializeNonPayableWithValue(value1) + .encodeABI(); + const proxy1 = await BeaconProxy.new(beacon.address, proxy1InitializeData); + + const proxy2InitializeData = this.implementationV0.contract.methods + .initializeNonPayableWithValue(value2) + .encodeABI(); + const proxy2 = await BeaconProxy.new(beacon.address, proxy2InitializeData); + + const dummy1 = new DummyImplementation(proxy1.address); + const dummy2 = new DummyImplementation(proxy2.address); + + // test initial values + expect(await dummy1.value()).to.bignumber.eq(value1); + expect(await dummy2.value()).to.bignumber.eq(value2); + + // test initial version + expect(await dummy1.version()).to.eq('V1'); + expect(await dummy2.version()).to.eq('V1'); + + // upgrade beacon + await beacon.upgradeTo(this.implementationV1.address); + + // test upgraded version + expect(await dummy1.version()).to.eq('V2'); + expect(await dummy2.version()).to.eq('V2'); + }); +}); diff --git a/lib/openzeppelin-contracts/test/proxy/beacon/UpgradeableBeacon.test.js b/lib/openzeppelin-contracts/test/proxy/beacon/UpgradeableBeacon.test.js new file mode 100644 index 0000000..d65f3e0 --- /dev/null +++ b/lib/openzeppelin-contracts/test/proxy/beacon/UpgradeableBeacon.test.js @@ -0,0 +1,44 @@ +const { expectRevert, expectEvent } = require('@openzeppelin/test-helpers'); +const { expect } = require('chai'); + +const UpgradeableBeacon = artifacts.require('UpgradeableBeacon'); +const Implementation1 = artifacts.require('Implementation1'); +const Implementation2 = artifacts.require('Implementation2'); + +contract('UpgradeableBeacon', function (accounts) { + const [owner, other] = accounts; + + it('cannot be created with non-contract implementation', async function () { + await expectRevert(UpgradeableBeacon.new(accounts[0]), 'UpgradeableBeacon: implementation is not a contract'); + }); + + context('once deployed', async function () { + beforeEach('deploying beacon', async function () { + this.v1 = await Implementation1.new(); + this.beacon = await UpgradeableBeacon.new(this.v1.address, { from: owner }); + }); + + it('returns implementation', async function () { + expect(await this.beacon.implementation()).to.equal(this.v1.address); + }); + + it('can be upgraded by the owner', async function () { + const v2 = await Implementation2.new(); + const receipt = await this.beacon.upgradeTo(v2.address, { from: owner }); + expectEvent(receipt, 'Upgraded', { implementation: v2.address }); + expect(await this.beacon.implementation()).to.equal(v2.address); + }); + + it('cannot be upgraded to a non-contract', async function () { + await expectRevert( + this.beacon.upgradeTo(other, { from: owner }), + 'UpgradeableBeacon: implementation is not a contract', + ); + }); + + it('cannot be upgraded by other account', async function () { + const v2 = await Implementation2.new(); + await expectRevert(this.beacon.upgradeTo(v2.address, { from: other }), 'Ownable: caller is not the owner'); + }); + }); +}); diff --git a/lib/openzeppelin-contracts/test/proxy/transparent/ProxyAdmin.test.js b/lib/openzeppelin-contracts/test/proxy/transparent/ProxyAdmin.test.js new file mode 100644 index 0000000..811dc56 --- /dev/null +++ b/lib/openzeppelin-contracts/test/proxy/transparent/ProxyAdmin.test.js @@ -0,0 +1,125 @@ +const { expectRevert } = require('@openzeppelin/test-helpers'); + +const { expect } = require('chai'); + +const ImplV1 = artifacts.require('DummyImplementation'); +const ImplV2 = artifacts.require('DummyImplementationV2'); +const ProxyAdmin = artifacts.require('ProxyAdmin'); +const TransparentUpgradeableProxy = artifacts.require('TransparentUpgradeableProxy'); + +contract('ProxyAdmin', function (accounts) { + const [proxyAdminOwner, newAdmin, anotherAccount] = accounts; + + before('set implementations', async function () { + this.implementationV1 = await ImplV1.new(); + this.implementationV2 = await ImplV2.new(); + }); + + beforeEach(async function () { + const initializeData = Buffer.from(''); + this.proxyAdmin = await ProxyAdmin.new({ from: proxyAdminOwner }); + this.proxy = await TransparentUpgradeableProxy.new( + this.implementationV1.address, + this.proxyAdmin.address, + initializeData, + { from: proxyAdminOwner }, + ); + }); + + it('has an owner', async function () { + expect(await this.proxyAdmin.owner()).to.equal(proxyAdminOwner); + }); + + describe('#getProxyAdmin', function () { + it('returns proxyAdmin as admin of the proxy', async function () { + const admin = await this.proxyAdmin.getProxyAdmin(this.proxy.address); + expect(admin).to.be.equal(this.proxyAdmin.address); + }); + + it('call to invalid proxy', async function () { + await expectRevert.unspecified(this.proxyAdmin.getProxyAdmin(this.implementationV1.address)); + }); + }); + + describe('#changeProxyAdmin', function () { + it('fails to change proxy admin if its not the proxy owner', async function () { + await expectRevert( + this.proxyAdmin.changeProxyAdmin(this.proxy.address, newAdmin, { from: anotherAccount }), + 'caller is not the owner', + ); + }); + + it('changes proxy admin', async function () { + await this.proxyAdmin.changeProxyAdmin(this.proxy.address, newAdmin, { from: proxyAdminOwner }); + expect(await this.proxy.admin.call({ from: newAdmin })).to.eq(newAdmin); + }); + }); + + describe('#getProxyImplementation', function () { + it('returns proxy implementation address', async function () { + const implementationAddress = await this.proxyAdmin.getProxyImplementation(this.proxy.address); + expect(implementationAddress).to.be.equal(this.implementationV1.address); + }); + + it('call to invalid proxy', async function () { + await expectRevert.unspecified(this.proxyAdmin.getProxyImplementation(this.implementationV1.address)); + }); + }); + + describe('#upgrade', function () { + context('with unauthorized account', function () { + it('fails to upgrade', async function () { + await expectRevert( + this.proxyAdmin.upgrade(this.proxy.address, this.implementationV2.address, { from: anotherAccount }), + 'caller is not the owner', + ); + }); + }); + + context('with authorized account', function () { + it('upgrades implementation', async function () { + await this.proxyAdmin.upgrade(this.proxy.address, this.implementationV2.address, { from: proxyAdminOwner }); + const implementationAddress = await this.proxyAdmin.getProxyImplementation(this.proxy.address); + expect(implementationAddress).to.be.equal(this.implementationV2.address); + }); + }); + }); + + describe('#upgradeAndCall', function () { + context('with unauthorized account', function () { + it('fails to upgrade', async function () { + const callData = new ImplV1('').contract.methods.initializeNonPayableWithValue(1337).encodeABI(); + await expectRevert( + this.proxyAdmin.upgradeAndCall(this.proxy.address, this.implementationV2.address, callData, { + from: anotherAccount, + }), + 'caller is not the owner', + ); + }); + }); + + context('with authorized account', function () { + context('with invalid callData', function () { + it('fails to upgrade', async function () { + const callData = '0x12345678'; + await expectRevert.unspecified( + this.proxyAdmin.upgradeAndCall(this.proxy.address, this.implementationV2.address, callData, { + from: proxyAdminOwner, + }), + ); + }); + }); + + context('with valid callData', function () { + it('upgrades implementation', async function () { + const callData = new ImplV1('').contract.methods.initializeNonPayableWithValue(1337).encodeABI(); + await this.proxyAdmin.upgradeAndCall(this.proxy.address, this.implementationV2.address, callData, { + from: proxyAdminOwner, + }); + const implementationAddress = await this.proxyAdmin.getProxyImplementation(this.proxy.address); + expect(implementationAddress).to.be.equal(this.implementationV2.address); + }); + }); + }); + }); +}); diff --git a/lib/openzeppelin-contracts/test/proxy/transparent/TransparentUpgradeableProxy.behaviour.js b/lib/openzeppelin-contracts/test/proxy/transparent/TransparentUpgradeableProxy.behaviour.js new file mode 100644 index 0000000..3a10357 --- /dev/null +++ b/lib/openzeppelin-contracts/test/proxy/transparent/TransparentUpgradeableProxy.behaviour.js @@ -0,0 +1,435 @@ +const { BN, expectRevert, expectEvent, constants } = require('@openzeppelin/test-helpers'); +const { ZERO_ADDRESS } = constants; +const { getSlot, ImplementationSlot, AdminSlot } = require('../../helpers/erc1967'); + +const { expect } = require('chai'); + +const Proxy = artifacts.require('Proxy'); +const Implementation1 = artifacts.require('Implementation1'); +const Implementation2 = artifacts.require('Implementation2'); +const Implementation3 = artifacts.require('Implementation3'); +const Implementation4 = artifacts.require('Implementation4'); +const MigratableMockV1 = artifacts.require('MigratableMockV1'); +const MigratableMockV2 = artifacts.require('MigratableMockV2'); +const MigratableMockV3 = artifacts.require('MigratableMockV3'); +const InitializableMock = artifacts.require('InitializableMock'); +const DummyImplementation = artifacts.require('DummyImplementation'); +const ClashingImplementation = artifacts.require('ClashingImplementation'); + +module.exports = function shouldBehaveLikeTransparentUpgradeableProxy(createProxy, accounts) { + const [proxyAdminAddress, proxyAdminOwner, anotherAccount] = accounts; + + before(async function () { + this.implementationV0 = (await DummyImplementation.new()).address; + this.implementationV1 = (await DummyImplementation.new()).address; + }); + + beforeEach(async function () { + const initializeData = Buffer.from(''); + this.proxy = await createProxy(this.implementationV0, proxyAdminAddress, initializeData, { + from: proxyAdminOwner, + }); + this.proxyAddress = this.proxy.address; + }); + + describe('implementation', function () { + it('returns the current implementation address', async function () { + const implementation = await this.proxy.implementation.call({ from: proxyAdminAddress }); + + expect(implementation).to.be.equal(this.implementationV0); + }); + + it('delegates to the implementation', async function () { + const dummy = new DummyImplementation(this.proxyAddress); + const value = await dummy.get(); + + expect(value).to.equal(true); + }); + }); + + describe('upgradeTo', function () { + describe('when the sender is the admin', function () { + const from = proxyAdminAddress; + + describe('when the given implementation is different from the current one', function () { + it('upgrades to the requested implementation', async function () { + await this.proxy.upgradeTo(this.implementationV1, { from }); + + const implementation = await this.proxy.implementation.call({ from: proxyAdminAddress }); + expect(implementation).to.be.equal(this.implementationV1); + }); + + it('emits an event', async function () { + expectEvent(await this.proxy.upgradeTo(this.implementationV1, { from }), 'Upgraded', { + implementation: this.implementationV1, + }); + }); + }); + + describe('when the given implementation is the zero address', function () { + it('reverts', async function () { + await expectRevert( + this.proxy.upgradeTo(ZERO_ADDRESS, { from }), + 'ERC1967: new implementation is not a contract', + ); + }); + }); + }); + + describe('when the sender is not the admin', function () { + const from = anotherAccount; + + it('reverts', async function () { + await expectRevert.unspecified(this.proxy.upgradeTo(this.implementationV1, { from })); + }); + }); + }); + + describe('upgradeToAndCall', function () { + describe('without migrations', function () { + beforeEach(async function () { + this.behavior = await InitializableMock.new(); + }); + + describe('when the call does not fail', function () { + const initializeData = new InitializableMock('').contract.methods['initializeWithX(uint256)'](42).encodeABI(); + + describe('when the sender is the admin', function () { + const from = proxyAdminAddress; + const value = 1e5; + + beforeEach(async function () { + this.receipt = await this.proxy.upgradeToAndCall(this.behavior.address, initializeData, { from, value }); + }); + + it('upgrades to the requested implementation', async function () { + const implementation = await this.proxy.implementation.call({ from: proxyAdminAddress }); + expect(implementation).to.be.equal(this.behavior.address); + }); + + it('emits an event', function () { + expectEvent(this.receipt, 'Upgraded', { implementation: this.behavior.address }); + }); + + it('calls the initializer function', async function () { + const migratable = new InitializableMock(this.proxyAddress); + const x = await migratable.x(); + expect(x).to.be.bignumber.equal('42'); + }); + + it('sends given value to the proxy', async function () { + const balance = await web3.eth.getBalance(this.proxyAddress); + expect(balance.toString()).to.be.bignumber.equal(value.toString()); + }); + + it.skip('uses the storage of the proxy', async function () { + // storage layout should look as follows: + // - 0: Initializable storage + // - 1-50: Initailizable reserved storage (50 slots) + // - 51: initializerRan + // - 52: x + const storedValue = await Proxy.at(this.proxyAddress).getStorageAt(52); + expect(parseInt(storedValue)).to.eq(42); + }); + }); + + describe('when the sender is not the admin', function () { + it('reverts', async function () { + await expectRevert.unspecified( + this.proxy.upgradeToAndCall(this.behavior.address, initializeData, { from: anotherAccount }), + ); + }); + }); + }); + + describe('when the call does fail', function () { + const initializeData = new InitializableMock('').contract.methods.fail().encodeABI(); + + it('reverts', async function () { + await expectRevert.unspecified( + this.proxy.upgradeToAndCall(this.behavior.address, initializeData, { from: proxyAdminAddress }), + ); + }); + }); + }); + + describe('with migrations', function () { + describe('when the sender is the admin', function () { + const from = proxyAdminAddress; + const value = 1e5; + + describe('when upgrading to V1', function () { + const v1MigrationData = new MigratableMockV1('').contract.methods.initialize(42).encodeABI(); + + beforeEach(async function () { + this.behaviorV1 = await MigratableMockV1.new(); + this.balancePreviousV1 = new BN(await web3.eth.getBalance(this.proxyAddress)); + this.receipt = await this.proxy.upgradeToAndCall(this.behaviorV1.address, v1MigrationData, { from, value }); + }); + + it('upgrades to the requested version and emits an event', async function () { + const implementation = await this.proxy.implementation.call({ from: proxyAdminAddress }); + expect(implementation).to.be.equal(this.behaviorV1.address); + expectEvent(this.receipt, 'Upgraded', { implementation: this.behaviorV1.address }); + }); + + it("calls the 'initialize' function and sends given value to the proxy", async function () { + const migratable = new MigratableMockV1(this.proxyAddress); + + const x = await migratable.x(); + expect(x).to.be.bignumber.equal('42'); + + const balance = await web3.eth.getBalance(this.proxyAddress); + expect(new BN(balance)).to.be.bignumber.equal(this.balancePreviousV1.addn(value)); + }); + + describe('when upgrading to V2', function () { + const v2MigrationData = new MigratableMockV2('').contract.methods.migrate(10, 42).encodeABI(); + + beforeEach(async function () { + this.behaviorV2 = await MigratableMockV2.new(); + this.balancePreviousV2 = new BN(await web3.eth.getBalance(this.proxyAddress)); + this.receipt = await this.proxy.upgradeToAndCall(this.behaviorV2.address, v2MigrationData, { + from, + value, + }); + }); + + it('upgrades to the requested version and emits an event', async function () { + const implementation = await this.proxy.implementation.call({ from: proxyAdminAddress }); + expect(implementation).to.be.equal(this.behaviorV2.address); + expectEvent(this.receipt, 'Upgraded', { implementation: this.behaviorV2.address }); + }); + + it("calls the 'migrate' function and sends given value to the proxy", async function () { + const migratable = new MigratableMockV2(this.proxyAddress); + + const x = await migratable.x(); + expect(x).to.be.bignumber.equal('10'); + + const y = await migratable.y(); + expect(y).to.be.bignumber.equal('42'); + + const balance = new BN(await web3.eth.getBalance(this.proxyAddress)); + expect(balance).to.be.bignumber.equal(this.balancePreviousV2.addn(value)); + }); + + describe('when upgrading to V3', function () { + const v3MigrationData = new MigratableMockV3('').contract.methods['migrate()']().encodeABI(); + + beforeEach(async function () { + this.behaviorV3 = await MigratableMockV3.new(); + this.balancePreviousV3 = new BN(await web3.eth.getBalance(this.proxyAddress)); + this.receipt = await this.proxy.upgradeToAndCall(this.behaviorV3.address, v3MigrationData, { + from, + value, + }); + }); + + it('upgrades to the requested version and emits an event', async function () { + const implementation = await this.proxy.implementation.call({ from: proxyAdminAddress }); + expect(implementation).to.be.equal(this.behaviorV3.address); + expectEvent(this.receipt, 'Upgraded', { implementation: this.behaviorV3.address }); + }); + + it("calls the 'migrate' function and sends given value to the proxy", async function () { + const migratable = new MigratableMockV3(this.proxyAddress); + + const x = await migratable.x(); + expect(x).to.be.bignumber.equal('42'); + + const y = await migratable.y(); + expect(y).to.be.bignumber.equal('10'); + + const balance = new BN(await web3.eth.getBalance(this.proxyAddress)); + expect(balance).to.be.bignumber.equal(this.balancePreviousV3.addn(value)); + }); + }); + }); + }); + }); + + describe('when the sender is not the admin', function () { + const from = anotherAccount; + + it('reverts', async function () { + const behaviorV1 = await MigratableMockV1.new(); + const v1MigrationData = new MigratableMockV1('').contract.methods.initialize(42).encodeABI(); + await expectRevert.unspecified(this.proxy.upgradeToAndCall(behaviorV1.address, v1MigrationData, { from })); + }); + }); + }); + }); + + describe('changeAdmin', function () { + describe('when the new proposed admin is not the zero address', function () { + const newAdmin = anotherAccount; + + describe('when the sender is the admin', function () { + beforeEach('transferring', async function () { + this.receipt = await this.proxy.changeAdmin(newAdmin, { from: proxyAdminAddress }); + }); + + it('assigns new proxy admin', async function () { + const newProxyAdmin = await this.proxy.admin.call({ from: newAdmin }); + expect(newProxyAdmin).to.be.equal(anotherAccount); + }); + + it('emits an event', function () { + expectEvent(this.receipt, 'AdminChanged', { + previousAdmin: proxyAdminAddress, + newAdmin: newAdmin, + }); + }); + }); + + describe('when the sender is not the admin', function () { + it('reverts', async function () { + await expectRevert.unspecified(this.proxy.changeAdmin(newAdmin, { from: anotherAccount })); + }); + }); + }); + + describe('when the new proposed admin is the zero address', function () { + it('reverts', async function () { + await expectRevert( + this.proxy.changeAdmin(ZERO_ADDRESS, { from: proxyAdminAddress }), + 'ERC1967: new admin is the zero address', + ); + }); + }); + }); + + describe('storage', function () { + it('should store the implementation address in specified location', async function () { + const implementationSlot = await getSlot(this.proxy, ImplementationSlot); + const implementationAddress = web3.utils.toChecksumAddress(implementationSlot.substr(-40)); + expect(implementationAddress).to.be.equal(this.implementationV0); + }); + + it('should store the admin proxy in specified location', async function () { + const proxyAdminSlot = await getSlot(this.proxy, AdminSlot); + const proxyAdminAddress = web3.utils.toChecksumAddress(proxyAdminSlot.substr(-40)); + expect(proxyAdminAddress).to.be.equal(proxyAdminAddress); + }); + }); + + describe('transparent proxy', function () { + beforeEach('creating proxy', async function () { + const initializeData = Buffer.from(''); + this.impl = await ClashingImplementation.new(); + this.proxy = await createProxy(this.impl.address, proxyAdminAddress, initializeData, { from: proxyAdminOwner }); + + this.clashing = new ClashingImplementation(this.proxy.address); + }); + + it('proxy admin cannot call delegated functions', async function () { + await expectRevert( + this.clashing.delegatedFunction({ from: proxyAdminAddress }), + 'TransparentUpgradeableProxy: admin cannot fallback to proxy target', + ); + }); + + describe('when function names clash', function () { + it('when sender is proxy admin should run the proxy function', async function () { + const value = await this.proxy.admin.call({ from: proxyAdminAddress, value: 0 }); + expect(value).to.be.equal(proxyAdminAddress); + }); + + it('when sender is other should delegate to implementation', async function () { + const value = await this.proxy.admin.call({ from: anotherAccount, value: 0 }); + expect(value).to.be.equal('0x0000000000000000000000000000000011111142'); + }); + + it('when sender is proxy admin value should not be accepted', async function () { + await expectRevert.unspecified(this.proxy.admin.call({ from: proxyAdminAddress, value: 1 })); + }); + + it('when sender is other value should be accepted', async function () { + const value = await this.proxy.admin.call({ from: anotherAccount, value: 1 }); + expect(value).to.be.equal('0x0000000000000000000000000000000011111142'); + }); + }); + }); + + describe('regression', () => { + const initializeData = Buffer.from(''); + + it('should add new function', async () => { + const instance1 = await Implementation1.new(); + const proxy = await createProxy(instance1.address, proxyAdminAddress, initializeData, { from: proxyAdminOwner }); + + const proxyInstance1 = new Implementation1(proxy.address); + await proxyInstance1.setValue(42); + + const instance2 = await Implementation2.new(); + await proxy.upgradeTo(instance2.address, { from: proxyAdminAddress }); + + const proxyInstance2 = new Implementation2(proxy.address); + const res = await proxyInstance2.getValue(); + expect(res.toString()).to.eq('42'); + }); + + it('should remove function', async () => { + const instance2 = await Implementation2.new(); + const proxy = await createProxy(instance2.address, proxyAdminAddress, initializeData, { from: proxyAdminOwner }); + + const proxyInstance2 = new Implementation2(proxy.address); + await proxyInstance2.setValue(42); + const res = await proxyInstance2.getValue(); + expect(res.toString()).to.eq('42'); + + const instance1 = await Implementation1.new(); + await proxy.upgradeTo(instance1.address, { from: proxyAdminAddress }); + + const proxyInstance1 = new Implementation2(proxy.address); + await expectRevert.unspecified(proxyInstance1.getValue()); + }); + + it('should change function signature', async () => { + const instance1 = await Implementation1.new(); + const proxy = await createProxy(instance1.address, proxyAdminAddress, initializeData, { from: proxyAdminOwner }); + + const proxyInstance1 = new Implementation1(proxy.address); + await proxyInstance1.setValue(42); + + const instance3 = await Implementation3.new(); + await proxy.upgradeTo(instance3.address, { from: proxyAdminAddress }); + const proxyInstance3 = new Implementation3(proxy.address); + + const res = await proxyInstance3.getValue(8); + expect(res.toString()).to.eq('50'); + }); + + it('should add fallback function', async () => { + const initializeData = Buffer.from(''); + const instance1 = await Implementation1.new(); + const proxy = await createProxy(instance1.address, proxyAdminAddress, initializeData, { from: proxyAdminOwner }); + + const instance4 = await Implementation4.new(); + await proxy.upgradeTo(instance4.address, { from: proxyAdminAddress }); + const proxyInstance4 = new Implementation4(proxy.address); + + const data = '0x'; + await web3.eth.sendTransaction({ to: proxy.address, from: anotherAccount, data }); + + const res = await proxyInstance4.getValue(); + expect(res.toString()).to.eq('1'); + }); + + it('should remove fallback function', async () => { + const instance4 = await Implementation4.new(); + const proxy = await createProxy(instance4.address, proxyAdminAddress, initializeData, { from: proxyAdminOwner }); + + const instance2 = await Implementation2.new(); + await proxy.upgradeTo(instance2.address, { from: proxyAdminAddress }); + + const data = '0x'; + await expectRevert.unspecified(web3.eth.sendTransaction({ to: proxy.address, from: anotherAccount, data })); + + const proxyInstance2 = new Implementation2(proxy.address); + const res = await proxyInstance2.getValue(); + expect(res.toString()).to.eq('0'); + }); + }); +}; diff --git a/lib/openzeppelin-contracts/test/proxy/transparent/TransparentUpgradeableProxy.test.js b/lib/openzeppelin-contracts/test/proxy/transparent/TransparentUpgradeableProxy.test.js new file mode 100644 index 0000000..86dd55d --- /dev/null +++ b/lib/openzeppelin-contracts/test/proxy/transparent/TransparentUpgradeableProxy.test.js @@ -0,0 +1,15 @@ +const shouldBehaveLikeProxy = require('../Proxy.behaviour'); +const shouldBehaveLikeTransparentUpgradeableProxy = require('./TransparentUpgradeableProxy.behaviour'); + +const TransparentUpgradeableProxy = artifacts.require('TransparentUpgradeableProxy'); + +contract('TransparentUpgradeableProxy', function (accounts) { + const [proxyAdminAddress, proxyAdminOwner] = accounts; + + const createProxy = async function (logic, admin, initData, opts) { + return TransparentUpgradeableProxy.new(logic, admin, initData, opts); + }; + + shouldBehaveLikeProxy(createProxy, proxyAdminAddress, proxyAdminOwner); + shouldBehaveLikeTransparentUpgradeableProxy(createProxy, accounts); +}); diff --git a/lib/openzeppelin-contracts/test/proxy/utils/Initializable.test.js b/lib/openzeppelin-contracts/test/proxy/utils/Initializable.test.js new file mode 100644 index 0000000..39c820b --- /dev/null +++ b/lib/openzeppelin-contracts/test/proxy/utils/Initializable.test.js @@ -0,0 +1,218 @@ +const { expectEvent, expectRevert } = require('@openzeppelin/test-helpers'); +const { expect } = require('chai'); + +const InitializableMock = artifacts.require('InitializableMock'); +const ConstructorInitializableMock = artifacts.require('ConstructorInitializableMock'); +const ChildConstructorInitializableMock = artifacts.require('ChildConstructorInitializableMock'); +const ReinitializerMock = artifacts.require('ReinitializerMock'); +const SampleChild = artifacts.require('SampleChild'); +const DisableBad1 = artifacts.require('DisableBad1'); +const DisableBad2 = artifacts.require('DisableBad2'); +const DisableOk = artifacts.require('DisableOk'); + +contract('Initializable', function () { + describe('basic testing without inheritance', function () { + beforeEach('deploying', async function () { + this.contract = await InitializableMock.new(); + }); + + describe('before initialize', function () { + it('initializer has not run', async function () { + expect(await this.contract.initializerRan()).to.equal(false); + }); + + it('_initializing returns false before initialization', async function () { + expect(await this.contract.isInitializing()).to.equal(false); + }); + }); + + describe('after initialize', function () { + beforeEach('initializing', async function () { + await this.contract.initialize(); + }); + + it('initializer has run', async function () { + expect(await this.contract.initializerRan()).to.equal(true); + }); + + it('_initializing returns false after initialization', async function () { + expect(await this.contract.isInitializing()).to.equal(false); + }); + + it('initializer does not run again', async function () { + await expectRevert(this.contract.initialize(), 'Initializable: contract is already initialized'); + }); + }); + + describe('nested under an initializer', function () { + it('initializer modifier reverts', async function () { + await expectRevert(this.contract.initializerNested(), 'Initializable: contract is already initialized'); + }); + + it('onlyInitializing modifier succeeds', async function () { + await this.contract.onlyInitializingNested(); + expect(await this.contract.onlyInitializingRan()).to.equal(true); + }); + }); + + it('cannot call onlyInitializable function outside the scope of an initializable function', async function () { + await expectRevert(this.contract.initializeOnlyInitializing(), 'Initializable: contract is not initializing'); + }); + }); + + it('nested initializer can run during construction', async function () { + const contract2 = await ConstructorInitializableMock.new(); + expect(await contract2.initializerRan()).to.equal(true); + expect(await contract2.onlyInitializingRan()).to.equal(true); + }); + + it('multiple constructor levels can be initializers', async function () { + const contract2 = await ChildConstructorInitializableMock.new(); + expect(await contract2.initializerRan()).to.equal(true); + expect(await contract2.childInitializerRan()).to.equal(true); + expect(await contract2.onlyInitializingRan()).to.equal(true); + }); + + describe('reinitialization', function () { + beforeEach('deploying', async function () { + this.contract = await ReinitializerMock.new(); + }); + + it('can reinitialize', async function () { + expect(await this.contract.counter()).to.be.bignumber.equal('0'); + await this.contract.initialize(); + expect(await this.contract.counter()).to.be.bignumber.equal('1'); + await this.contract.reinitialize(2); + expect(await this.contract.counter()).to.be.bignumber.equal('2'); + await this.contract.reinitialize(3); + expect(await this.contract.counter()).to.be.bignumber.equal('3'); + }); + + it('can jump multiple steps', async function () { + expect(await this.contract.counter()).to.be.bignumber.equal('0'); + await this.contract.initialize(); + expect(await this.contract.counter()).to.be.bignumber.equal('1'); + await this.contract.reinitialize(128); + expect(await this.contract.counter()).to.be.bignumber.equal('2'); + }); + + it('cannot nest reinitializers', async function () { + expect(await this.contract.counter()).to.be.bignumber.equal('0'); + await expectRevert(this.contract.nestedReinitialize(2, 2), 'Initializable: contract is already initialized'); + await expectRevert(this.contract.nestedReinitialize(2, 3), 'Initializable: contract is already initialized'); + await expectRevert(this.contract.nestedReinitialize(3, 2), 'Initializable: contract is already initialized'); + }); + + it('can chain reinitializers', async function () { + expect(await this.contract.counter()).to.be.bignumber.equal('0'); + await this.contract.chainReinitialize(2, 3); + expect(await this.contract.counter()).to.be.bignumber.equal('2'); + }); + + it('_getInitializedVersion returns right version', async function () { + await this.contract.initialize(); + expect(await this.contract.getInitializedVersion()).to.be.bignumber.equal('1'); + await this.contract.reinitialize(12); + expect(await this.contract.getInitializedVersion()).to.be.bignumber.equal('12'); + }); + + describe('contract locking', function () { + it('prevents initialization', async function () { + await this.contract.disableInitializers(); + await expectRevert(this.contract.initialize(), 'Initializable: contract is already initialized'); + }); + + it('prevents re-initialization', async function () { + await this.contract.disableInitializers(); + await expectRevert(this.contract.reinitialize(255), 'Initializable: contract is already initialized'); + }); + + it('can lock contract after initialization', async function () { + await this.contract.initialize(); + await this.contract.disableInitializers(); + await expectRevert(this.contract.reinitialize(255), 'Initializable: contract is already initialized'); + }); + }); + }); + + describe('events', function () { + it('constructor initialization emits event', async function () { + const contract = await ConstructorInitializableMock.new(); + + await expectEvent.inTransaction(contract.transactionHash, contract, 'Initialized', { version: '1' }); + }); + + it('initialization emits event', async function () { + const contract = await ReinitializerMock.new(); + + const { receipt } = await contract.initialize(); + expect(receipt.logs.filter(({ event }) => event === 'Initialized').length).to.be.equal(1); + expectEvent(receipt, 'Initialized', { version: '1' }); + }); + + it('reinitialization emits event', async function () { + const contract = await ReinitializerMock.new(); + + const { receipt } = await contract.reinitialize(128); + expect(receipt.logs.filter(({ event }) => event === 'Initialized').length).to.be.equal(1); + expectEvent(receipt, 'Initialized', { version: '128' }); + }); + + it('chained reinitialization emits multiple events', async function () { + const contract = await ReinitializerMock.new(); + + const { receipt } = await contract.chainReinitialize(2, 3); + expect(receipt.logs.filter(({ event }) => event === 'Initialized').length).to.be.equal(2); + expectEvent(receipt, 'Initialized', { version: '2' }); + expectEvent(receipt, 'Initialized', { version: '3' }); + }); + }); + + describe('complex testing with inheritance', function () { + const mother = '12'; + const gramps = '56'; + const father = '34'; + const child = '78'; + + beforeEach('deploying', async function () { + this.contract = await SampleChild.new(); + }); + + beforeEach('initializing', async function () { + await this.contract.initialize(mother, gramps, father, child); + }); + + it('initializes human', async function () { + expect(await this.contract.isHuman()).to.be.equal(true); + }); + + it('initializes mother', async function () { + expect(await this.contract.mother()).to.be.bignumber.equal(mother); + }); + + it('initializes gramps', async function () { + expect(await this.contract.gramps()).to.be.bignumber.equal(gramps); + }); + + it('initializes father', async function () { + expect(await this.contract.father()).to.be.bignumber.equal(father); + }); + + it('initializes child', async function () { + expect(await this.contract.child()).to.be.bignumber.equal(child); + }); + }); + + describe('disabling initialization', function () { + it('old and new patterns in bad sequence', async function () { + await expectRevert(DisableBad1.new(), 'Initializable: contract is already initialized'); + await expectRevert(DisableBad2.new(), 'Initializable: contract is initializing'); + }); + + it('old and new patterns in good sequence', async function () { + const ok = await DisableOk.new(); + await expectEvent.inConstruction(ok, 'Initialized', { version: '1' }); + await expectEvent.inConstruction(ok, 'Initialized', { version: '255' }); + }); + }); +}); diff --git a/lib/openzeppelin-contracts/test/proxy/utils/UUPSUpgradeable.test.js b/lib/openzeppelin-contracts/test/proxy/utils/UUPSUpgradeable.test.js new file mode 100644 index 0000000..b0c1b3f --- /dev/null +++ b/lib/openzeppelin-contracts/test/proxy/utils/UUPSUpgradeable.test.js @@ -0,0 +1,85 @@ +const { expectEvent, expectRevert } = require('@openzeppelin/test-helpers'); +const { web3 } = require('@openzeppelin/test-helpers/src/setup'); +const { getSlot, ImplementationSlot } = require('../../helpers/erc1967'); + +const ERC1967Proxy = artifacts.require('ERC1967Proxy'); +const UUPSUpgradeableMock = artifacts.require('UUPSUpgradeableMock'); +const UUPSUpgradeableUnsafeMock = artifacts.require('UUPSUpgradeableUnsafeMock'); +const UUPSUpgradeableLegacyMock = artifacts.require('UUPSUpgradeableLegacyMock'); +const NonUpgradeableMock = artifacts.require('NonUpgradeableMock'); + +contract('UUPSUpgradeable', function () { + before(async function () { + this.implInitial = await UUPSUpgradeableMock.new(); + this.implUpgradeOk = await UUPSUpgradeableMock.new(); + this.implUpgradeUnsafe = await UUPSUpgradeableUnsafeMock.new(); + this.implUpgradeNonUUPS = await NonUpgradeableMock.new(); + }); + + beforeEach(async function () { + const { address } = await ERC1967Proxy.new(this.implInitial.address, '0x'); + this.instance = await UUPSUpgradeableMock.at(address); + }); + + it('upgrade to upgradeable implementation', async function () { + const { receipt } = await this.instance.upgradeTo(this.implUpgradeOk.address); + expect(receipt.logs.filter(({ event }) => event === 'Upgraded').length).to.be.equal(1); + expectEvent(receipt, 'Upgraded', { implementation: this.implUpgradeOk.address }); + }); + + it('upgrade to upgradeable implementation with call', async function () { + expect(await this.instance.current()).to.be.bignumber.equal('0'); + + const { receipt } = await this.instance.upgradeToAndCall( + this.implUpgradeOk.address, + this.implUpgradeOk.contract.methods.increment().encodeABI(), + ); + expect(receipt.logs.filter(({ event }) => event === 'Upgraded').length).to.be.equal(1); + expectEvent(receipt, 'Upgraded', { implementation: this.implUpgradeOk.address }); + + expect(await this.instance.current()).to.be.bignumber.equal('1'); + }); + + it('upgrade to and unsafe upgradeable implementation', async function () { + const { receipt } = await this.instance.upgradeTo(this.implUpgradeUnsafe.address); + expectEvent(receipt, 'Upgraded', { implementation: this.implUpgradeUnsafe.address }); + }); + + // delegate to a non existing upgradeTo function causes a low level revert + it('reject upgrade to non uups implementation', async function () { + await expectRevert( + this.instance.upgradeTo(this.implUpgradeNonUUPS.address), + 'ERC1967Upgrade: new implementation is not UUPS', + ); + }); + + it('reject proxy address as implementation', async function () { + const { address } = await ERC1967Proxy.new(this.implInitial.address, '0x'); + const otherInstance = await UUPSUpgradeableMock.at(address); + + await expectRevert( + this.instance.upgradeTo(otherInstance.address), + 'ERC1967Upgrade: new implementation is not UUPS', + ); + }); + + it('can upgrade from legacy implementations', async function () { + const legacyImpl = await UUPSUpgradeableLegacyMock.new(); + const legacyInstance = await ERC1967Proxy.new(legacyImpl.address, '0x').then(({ address }) => + UUPSUpgradeableLegacyMock.at(address), + ); + + const receipt = await legacyInstance.upgradeTo(this.implInitial.address); + + const UpgradedEvents = receipt.logs.filter( + ({ address, event }) => address === legacyInstance.address && event === 'Upgraded', + ); + expect(UpgradedEvents.length).to.be.equal(1); + + expectEvent(receipt, 'Upgraded', { implementation: this.implInitial.address }); + + const implementationSlot = await getSlot(legacyInstance, ImplementationSlot); + const implementationAddress = web3.utils.toChecksumAddress(implementationSlot.substr(-40)); + expect(implementationAddress).to.be.equal(this.implInitial.address); + }); +}); diff --git a/lib/openzeppelin-contracts/test/security/Pausable.test.js b/lib/openzeppelin-contracts/test/security/Pausable.test.js new file mode 100644 index 0000000..5cca11e --- /dev/null +++ b/lib/openzeppelin-contracts/test/security/Pausable.test.js @@ -0,0 +1,85 @@ +const { expectEvent, expectRevert } = require('@openzeppelin/test-helpers'); + +const { expect } = require('chai'); + +const PausableMock = artifacts.require('PausableMock'); + +contract('Pausable', function (accounts) { + const [pauser] = accounts; + + beforeEach(async function () { + this.pausable = await PausableMock.new(); + }); + + context('when unpaused', function () { + beforeEach(async function () { + expect(await this.pausable.paused()).to.equal(false); + }); + + it('can perform normal process in non-pause', async function () { + expect(await this.pausable.count()).to.be.bignumber.equal('0'); + + await this.pausable.normalProcess(); + expect(await this.pausable.count()).to.be.bignumber.equal('1'); + }); + + it('cannot take drastic measure in non-pause', async function () { + await expectRevert(this.pausable.drasticMeasure(), 'Pausable: not paused'); + expect(await this.pausable.drasticMeasureTaken()).to.equal(false); + }); + + context('when paused', function () { + beforeEach(async function () { + this.receipt = await this.pausable.pause({ from: pauser }); + }); + + it('emits a Paused event', function () { + expectEvent(this.receipt, 'Paused', { account: pauser }); + }); + + it('cannot perform normal process in pause', async function () { + await expectRevert(this.pausable.normalProcess(), 'Pausable: paused'); + }); + + it('can take a drastic measure in a pause', async function () { + await this.pausable.drasticMeasure(); + expect(await this.pausable.drasticMeasureTaken()).to.equal(true); + }); + + it('reverts when re-pausing', async function () { + await expectRevert(this.pausable.pause(), 'Pausable: paused'); + }); + + describe('unpausing', function () { + it('is unpausable by the pauser', async function () { + await this.pausable.unpause(); + expect(await this.pausable.paused()).to.equal(false); + }); + + context('when unpaused', function () { + beforeEach(async function () { + this.receipt = await this.pausable.unpause({ from: pauser }); + }); + + it('emits an Unpaused event', function () { + expectEvent(this.receipt, 'Unpaused', { account: pauser }); + }); + + it('should resume allowing normal process', async function () { + expect(await this.pausable.count()).to.be.bignumber.equal('0'); + await this.pausable.normalProcess(); + expect(await this.pausable.count()).to.be.bignumber.equal('1'); + }); + + it('should prevent drastic measure', async function () { + await expectRevert(this.pausable.drasticMeasure(), 'Pausable: not paused'); + }); + + it('reverts when re-unpausing', async function () { + await expectRevert(this.pausable.unpause(), 'Pausable: not paused'); + }); + }); + }); + }); + }); +}); diff --git a/lib/openzeppelin-contracts/test/security/PullPayment.test.js b/lib/openzeppelin-contracts/test/security/PullPayment.test.js new file mode 100644 index 0000000..5bf72bb --- /dev/null +++ b/lib/openzeppelin-contracts/test/security/PullPayment.test.js @@ -0,0 +1,51 @@ +const { balance, ether } = require('@openzeppelin/test-helpers'); + +const { expect } = require('chai'); + +const PullPaymentMock = artifacts.require('PullPaymentMock'); + +contract('PullPayment', function (accounts) { + const [payer, payee1, payee2] = accounts; + + const amount = ether('17'); + + beforeEach(async function () { + this.contract = await PullPaymentMock.new({ value: amount }); + }); + + describe('payments', function () { + it('can record an async payment correctly', async function () { + await this.contract.callTransfer(payee1, 100, { from: payer }); + expect(await this.contract.payments(payee1)).to.be.bignumber.equal('100'); + }); + + it('can add multiple balances on one account', async function () { + await this.contract.callTransfer(payee1, 200, { from: payer }); + await this.contract.callTransfer(payee1, 300, { from: payer }); + expect(await this.contract.payments(payee1)).to.be.bignumber.equal('500'); + }); + + it('can add balances on multiple accounts', async function () { + await this.contract.callTransfer(payee1, 200, { from: payer }); + await this.contract.callTransfer(payee2, 300, { from: payer }); + + expect(await this.contract.payments(payee1)).to.be.bignumber.equal('200'); + + expect(await this.contract.payments(payee2)).to.be.bignumber.equal('300'); + }); + }); + + describe('withdrawPayments', function () { + it('can withdraw payment', async function () { + const balanceTracker = await balance.tracker(payee1); + + await this.contract.callTransfer(payee1, amount, { from: payer }); + expect(await this.contract.payments(payee1)).to.be.bignumber.equal(amount); + + await this.contract.withdrawPayments(payee1); + + expect(await balanceTracker.delta()).to.be.bignumber.equal(amount); + expect(await this.contract.payments(payee1)).to.be.bignumber.equal('0'); + }); + }); +}); diff --git a/lib/openzeppelin-contracts/test/security/ReentrancyGuard.test.js b/lib/openzeppelin-contracts/test/security/ReentrancyGuard.test.js new file mode 100644 index 0000000..1a80bc8 --- /dev/null +++ b/lib/openzeppelin-contracts/test/security/ReentrancyGuard.test.js @@ -0,0 +1,43 @@ +const { expectRevert } = require('@openzeppelin/test-helpers'); + +const { expect } = require('chai'); + +const ReentrancyMock = artifacts.require('ReentrancyMock'); +const ReentrancyAttack = artifacts.require('ReentrancyAttack'); + +contract('ReentrancyGuard', function () { + beforeEach(async function () { + this.reentrancyMock = await ReentrancyMock.new(); + expect(await this.reentrancyMock.counter()).to.be.bignumber.equal('0'); + }); + + it('nonReentrant function can be called', async function () { + expect(await this.reentrancyMock.counter()).to.be.bignumber.equal('0'); + await this.reentrancyMock.callback(); + expect(await this.reentrancyMock.counter()).to.be.bignumber.equal('1'); + }); + + it('does not allow remote callback', async function () { + const attacker = await ReentrancyAttack.new(); + await expectRevert(this.reentrancyMock.countAndCall(attacker.address), 'ReentrancyAttack: failed call'); + }); + + it('_reentrancyGuardEntered should be true when guarded', async function () { + await this.reentrancyMock.guardedCheckEntered(); + }); + + it('_reentrancyGuardEntered should be false when unguarded', async function () { + await this.reentrancyMock.unguardedCheckNotEntered(); + }); + + // The following are more side-effects than intended behavior: + // I put them here as documentation, and to monitor any changes + // in the side-effects. + it('does not allow local recursion', async function () { + await expectRevert(this.reentrancyMock.countLocalRecursive(10), 'ReentrancyGuard: reentrant call'); + }); + + it('does not allow indirect local recursion', async function () { + await expectRevert(this.reentrancyMock.countThisRecursive(10), 'ReentrancyMock: failed call'); + }); +}); diff --git a/lib/openzeppelin-contracts/test/token/ERC1155/ERC1155.behavior.js b/lib/openzeppelin-contracts/test/token/ERC1155/ERC1155.behavior.js new file mode 100644 index 0000000..96d448a --- /dev/null +++ b/lib/openzeppelin-contracts/test/token/ERC1155/ERC1155.behavior.js @@ -0,0 +1,767 @@ +const { BN, constants, expectEvent, expectRevert } = require('@openzeppelin/test-helpers'); +const { ZERO_ADDRESS } = constants; + +const { expect } = require('chai'); + +const { shouldSupportInterfaces } = require('../../utils/introspection/SupportsInterface.behavior'); + +const ERC1155ReceiverMock = artifacts.require('ERC1155ReceiverMock'); + +function shouldBehaveLikeERC1155([minter, firstTokenHolder, secondTokenHolder, multiTokenHolder, recipient, proxy]) { + const firstTokenId = new BN(1); + const secondTokenId = new BN(2); + const unknownTokenId = new BN(3); + + const firstAmount = new BN(1000); + const secondAmount = new BN(2000); + + const RECEIVER_SINGLE_MAGIC_VALUE = '0xf23a6e61'; + const RECEIVER_BATCH_MAGIC_VALUE = '0xbc197c81'; + + describe('like an ERC1155', function () { + describe('balanceOf', function () { + it('reverts when queried about the zero address', async function () { + await expectRevert( + this.token.balanceOf(ZERO_ADDRESS, firstTokenId), + 'ERC1155: address zero is not a valid owner', + ); + }); + + context("when accounts don't own tokens", function () { + it('returns zero for given addresses', async function () { + expect(await this.token.balanceOf(firstTokenHolder, firstTokenId)).to.be.bignumber.equal('0'); + + expect(await this.token.balanceOf(secondTokenHolder, secondTokenId)).to.be.bignumber.equal('0'); + + expect(await this.token.balanceOf(firstTokenHolder, unknownTokenId)).to.be.bignumber.equal('0'); + }); + }); + + context('when accounts own some tokens', function () { + beforeEach(async function () { + await this.token.$_mint(firstTokenHolder, firstTokenId, firstAmount, '0x', { + from: minter, + }); + await this.token.$_mint(secondTokenHolder, secondTokenId, secondAmount, '0x', { + from: minter, + }); + }); + + it('returns the amount of tokens owned by the given addresses', async function () { + expect(await this.token.balanceOf(firstTokenHolder, firstTokenId)).to.be.bignumber.equal(firstAmount); + + expect(await this.token.balanceOf(secondTokenHolder, secondTokenId)).to.be.bignumber.equal(secondAmount); + + expect(await this.token.balanceOf(firstTokenHolder, unknownTokenId)).to.be.bignumber.equal('0'); + }); + }); + }); + + describe('balanceOfBatch', function () { + it("reverts when input arrays don't match up", async function () { + await expectRevert( + this.token.balanceOfBatch( + [firstTokenHolder, secondTokenHolder, firstTokenHolder, secondTokenHolder], + [firstTokenId, secondTokenId, unknownTokenId], + ), + 'ERC1155: accounts and ids length mismatch', + ); + + await expectRevert( + this.token.balanceOfBatch( + [firstTokenHolder, secondTokenHolder], + [firstTokenId, secondTokenId, unknownTokenId], + ), + 'ERC1155: accounts and ids length mismatch', + ); + }); + + it('reverts when one of the addresses is the zero address', async function () { + await expectRevert( + this.token.balanceOfBatch( + [firstTokenHolder, secondTokenHolder, ZERO_ADDRESS], + [firstTokenId, secondTokenId, unknownTokenId], + ), + 'ERC1155: address zero is not a valid owner', + ); + }); + + context("when accounts don't own tokens", function () { + it('returns zeros for each account', async function () { + const result = await this.token.balanceOfBatch( + [firstTokenHolder, secondTokenHolder, firstTokenHolder], + [firstTokenId, secondTokenId, unknownTokenId], + ); + expect(result).to.be.an('array'); + expect(result[0]).to.be.a.bignumber.equal('0'); + expect(result[1]).to.be.a.bignumber.equal('0'); + expect(result[2]).to.be.a.bignumber.equal('0'); + }); + }); + + context('when accounts own some tokens', function () { + beforeEach(async function () { + await this.token.$_mint(firstTokenHolder, firstTokenId, firstAmount, '0x', { + from: minter, + }); + await this.token.$_mint(secondTokenHolder, secondTokenId, secondAmount, '0x', { + from: minter, + }); + }); + + it('returns amounts owned by each account in order passed', async function () { + const result = await this.token.balanceOfBatch( + [secondTokenHolder, firstTokenHolder, firstTokenHolder], + [secondTokenId, firstTokenId, unknownTokenId], + ); + expect(result).to.be.an('array'); + expect(result[0]).to.be.a.bignumber.equal(secondAmount); + expect(result[1]).to.be.a.bignumber.equal(firstAmount); + expect(result[2]).to.be.a.bignumber.equal('0'); + }); + + it('returns multiple times the balance of the same address when asked', async function () { + const result = await this.token.balanceOfBatch( + [firstTokenHolder, secondTokenHolder, firstTokenHolder], + [firstTokenId, secondTokenId, firstTokenId], + ); + expect(result).to.be.an('array'); + expect(result[0]).to.be.a.bignumber.equal(result[2]); + expect(result[0]).to.be.a.bignumber.equal(firstAmount); + expect(result[1]).to.be.a.bignumber.equal(secondAmount); + expect(result[2]).to.be.a.bignumber.equal(firstAmount); + }); + }); + }); + + describe('setApprovalForAll', function () { + let receipt; + beforeEach(async function () { + receipt = await this.token.setApprovalForAll(proxy, true, { from: multiTokenHolder }); + }); + + it('sets approval status which can be queried via isApprovedForAll', async function () { + expect(await this.token.isApprovedForAll(multiTokenHolder, proxy)).to.be.equal(true); + }); + + it('emits an ApprovalForAll log', function () { + expectEvent(receipt, 'ApprovalForAll', { account: multiTokenHolder, operator: proxy, approved: true }); + }); + + it('can unset approval for an operator', async function () { + await this.token.setApprovalForAll(proxy, false, { from: multiTokenHolder }); + expect(await this.token.isApprovedForAll(multiTokenHolder, proxy)).to.be.equal(false); + }); + + it('reverts if attempting to approve self as an operator', async function () { + await expectRevert( + this.token.setApprovalForAll(multiTokenHolder, true, { from: multiTokenHolder }), + 'ERC1155: setting approval status for self', + ); + }); + }); + + describe('safeTransferFrom', function () { + beforeEach(async function () { + await this.token.$_mint(multiTokenHolder, firstTokenId, firstAmount, '0x', { + from: minter, + }); + await this.token.$_mint(multiTokenHolder, secondTokenId, secondAmount, '0x', { + from: minter, + }); + }); + + it('reverts when transferring more than balance', async function () { + await expectRevert( + this.token.safeTransferFrom(multiTokenHolder, recipient, firstTokenId, firstAmount.addn(1), '0x', { + from: multiTokenHolder, + }), + 'ERC1155: insufficient balance for transfer', + ); + }); + + it('reverts when transferring to zero address', async function () { + await expectRevert( + this.token.safeTransferFrom(multiTokenHolder, ZERO_ADDRESS, firstTokenId, firstAmount, '0x', { + from: multiTokenHolder, + }), + 'ERC1155: transfer to the zero address', + ); + }); + + function transferWasSuccessful({ operator, from, id, value }) { + it('debits transferred balance from sender', async function () { + const newBalance = await this.token.balanceOf(from, id); + expect(newBalance).to.be.a.bignumber.equal('0'); + }); + + it('credits transferred balance to receiver', async function () { + const newBalance = await this.token.balanceOf(this.toWhom, id); + expect(newBalance).to.be.a.bignumber.equal(value); + }); + + it('emits a TransferSingle log', function () { + expectEvent(this.transferLogs, 'TransferSingle', { + operator, + from, + to: this.toWhom, + id, + value, + }); + }); + } + + context('when called by the multiTokenHolder', async function () { + beforeEach(async function () { + this.toWhom = recipient; + this.transferLogs = await this.token.safeTransferFrom( + multiTokenHolder, + recipient, + firstTokenId, + firstAmount, + '0x', + { + from: multiTokenHolder, + }, + ); + }); + + transferWasSuccessful.call(this, { + operator: multiTokenHolder, + from: multiTokenHolder, + id: firstTokenId, + value: firstAmount, + }); + + it('preserves existing balances which are not transferred by multiTokenHolder', async function () { + const balance1 = await this.token.balanceOf(multiTokenHolder, secondTokenId); + expect(balance1).to.be.a.bignumber.equal(secondAmount); + + const balance2 = await this.token.balanceOf(recipient, secondTokenId); + expect(balance2).to.be.a.bignumber.equal('0'); + }); + }); + + context('when called by an operator on behalf of the multiTokenHolder', function () { + context('when operator is not approved by multiTokenHolder', function () { + beforeEach(async function () { + await this.token.setApprovalForAll(proxy, false, { from: multiTokenHolder }); + }); + + it('reverts', async function () { + await expectRevert( + this.token.safeTransferFrom(multiTokenHolder, recipient, firstTokenId, firstAmount, '0x', { + from: proxy, + }), + 'ERC1155: caller is not token owner or approved', + ); + }); + }); + + context('when operator is approved by multiTokenHolder', function () { + beforeEach(async function () { + this.toWhom = recipient; + await this.token.setApprovalForAll(proxy, true, { from: multiTokenHolder }); + this.transferLogs = await this.token.safeTransferFrom( + multiTokenHolder, + recipient, + firstTokenId, + firstAmount, + '0x', + { + from: proxy, + }, + ); + }); + + transferWasSuccessful.call(this, { + operator: proxy, + from: multiTokenHolder, + id: firstTokenId, + value: firstAmount, + }); + + it("preserves operator's balances not involved in the transfer", async function () { + const balance1 = await this.token.balanceOf(proxy, firstTokenId); + expect(balance1).to.be.a.bignumber.equal('0'); + + const balance2 = await this.token.balanceOf(proxy, secondTokenId); + expect(balance2).to.be.a.bignumber.equal('0'); + }); + }); + }); + + context('when sending to a valid receiver', function () { + beforeEach(async function () { + this.receiver = await ERC1155ReceiverMock.new( + RECEIVER_SINGLE_MAGIC_VALUE, + false, + RECEIVER_BATCH_MAGIC_VALUE, + false, + ); + }); + + context('without data', function () { + beforeEach(async function () { + this.toWhom = this.receiver.address; + this.transferReceipt = await this.token.safeTransferFrom( + multiTokenHolder, + this.receiver.address, + firstTokenId, + firstAmount, + '0x', + { from: multiTokenHolder }, + ); + this.transferLogs = this.transferReceipt; + }); + + transferWasSuccessful.call(this, { + operator: multiTokenHolder, + from: multiTokenHolder, + id: firstTokenId, + value: firstAmount, + }); + + it('calls onERC1155Received', async function () { + await expectEvent.inTransaction(this.transferReceipt.tx, ERC1155ReceiverMock, 'Received', { + operator: multiTokenHolder, + from: multiTokenHolder, + id: firstTokenId, + value: firstAmount, + data: null, + }); + }); + }); + + context('with data', function () { + const data = '0xf00dd00d'; + beforeEach(async function () { + this.toWhom = this.receiver.address; + this.transferReceipt = await this.token.safeTransferFrom( + multiTokenHolder, + this.receiver.address, + firstTokenId, + firstAmount, + data, + { from: multiTokenHolder }, + ); + this.transferLogs = this.transferReceipt; + }); + + transferWasSuccessful.call(this, { + operator: multiTokenHolder, + from: multiTokenHolder, + id: firstTokenId, + value: firstAmount, + }); + + it('calls onERC1155Received', async function () { + await expectEvent.inTransaction(this.transferReceipt.tx, ERC1155ReceiverMock, 'Received', { + operator: multiTokenHolder, + from: multiTokenHolder, + id: firstTokenId, + value: firstAmount, + data, + }); + }); + }); + }); + + context('to a receiver contract returning unexpected value', function () { + beforeEach(async function () { + this.receiver = await ERC1155ReceiverMock.new('0x00c0ffee', false, RECEIVER_BATCH_MAGIC_VALUE, false); + }); + + it('reverts', async function () { + await expectRevert( + this.token.safeTransferFrom(multiTokenHolder, this.receiver.address, firstTokenId, firstAmount, '0x', { + from: multiTokenHolder, + }), + 'ERC1155: ERC1155Receiver rejected tokens', + ); + }); + }); + + context('to a receiver contract that reverts', function () { + beforeEach(async function () { + this.receiver = await ERC1155ReceiverMock.new( + RECEIVER_SINGLE_MAGIC_VALUE, + true, + RECEIVER_BATCH_MAGIC_VALUE, + false, + ); + }); + + it('reverts', async function () { + await expectRevert( + this.token.safeTransferFrom(multiTokenHolder, this.receiver.address, firstTokenId, firstAmount, '0x', { + from: multiTokenHolder, + }), + 'ERC1155ReceiverMock: reverting on receive', + ); + }); + }); + + context('to a contract that does not implement the required function', function () { + it('reverts', async function () { + const invalidReceiver = this.token; + await expectRevert.unspecified( + this.token.safeTransferFrom(multiTokenHolder, invalidReceiver.address, firstTokenId, firstAmount, '0x', { + from: multiTokenHolder, + }), + ); + }); + }); + }); + + describe('safeBatchTransferFrom', function () { + beforeEach(async function () { + await this.token.$_mint(multiTokenHolder, firstTokenId, firstAmount, '0x', { + from: minter, + }); + await this.token.$_mint(multiTokenHolder, secondTokenId, secondAmount, '0x', { + from: minter, + }); + }); + + it('reverts when transferring amount more than any of balances', async function () { + await expectRevert( + this.token.safeBatchTransferFrom( + multiTokenHolder, + recipient, + [firstTokenId, secondTokenId], + [firstAmount, secondAmount.addn(1)], + '0x', + { from: multiTokenHolder }, + ), + 'ERC1155: insufficient balance for transfer', + ); + }); + + it("reverts when ids array length doesn't match amounts array length", async function () { + await expectRevert( + this.token.safeBatchTransferFrom( + multiTokenHolder, + recipient, + [firstTokenId], + [firstAmount, secondAmount], + '0x', + { from: multiTokenHolder }, + ), + 'ERC1155: ids and amounts length mismatch', + ); + + await expectRevert( + this.token.safeBatchTransferFrom( + multiTokenHolder, + recipient, + [firstTokenId, secondTokenId], + [firstAmount], + '0x', + { from: multiTokenHolder }, + ), + 'ERC1155: ids and amounts length mismatch', + ); + }); + + it('reverts when transferring to zero address', async function () { + await expectRevert( + this.token.safeBatchTransferFrom( + multiTokenHolder, + ZERO_ADDRESS, + [firstTokenId, secondTokenId], + [firstAmount, secondAmount], + '0x', + { from: multiTokenHolder }, + ), + 'ERC1155: transfer to the zero address', + ); + }); + + function batchTransferWasSuccessful({ operator, from, ids, values }) { + it('debits transferred balances from sender', async function () { + const newBalances = await this.token.balanceOfBatch(new Array(ids.length).fill(from), ids); + for (const newBalance of newBalances) { + expect(newBalance).to.be.a.bignumber.equal('0'); + } + }); + + it('credits transferred balances to receiver', async function () { + const newBalances = await this.token.balanceOfBatch(new Array(ids.length).fill(this.toWhom), ids); + for (let i = 0; i < newBalances.length; i++) { + expect(newBalances[i]).to.be.a.bignumber.equal(values[i]); + } + }); + + it('emits a TransferBatch log', function () { + expectEvent(this.transferLogs, 'TransferBatch', { + operator, + from, + to: this.toWhom, + // ids, + // values, + }); + }); + } + + context('when called by the multiTokenHolder', async function () { + beforeEach(async function () { + this.toWhom = recipient; + this.transferLogs = await this.token.safeBatchTransferFrom( + multiTokenHolder, + recipient, + [firstTokenId, secondTokenId], + [firstAmount, secondAmount], + '0x', + { from: multiTokenHolder }, + ); + }); + + batchTransferWasSuccessful.call(this, { + operator: multiTokenHolder, + from: multiTokenHolder, + ids: [firstTokenId, secondTokenId], + values: [firstAmount, secondAmount], + }); + }); + + context('when called by an operator on behalf of the multiTokenHolder', function () { + context('when operator is not approved by multiTokenHolder', function () { + beforeEach(async function () { + await this.token.setApprovalForAll(proxy, false, { from: multiTokenHolder }); + }); + + it('reverts', async function () { + await expectRevert( + this.token.safeBatchTransferFrom( + multiTokenHolder, + recipient, + [firstTokenId, secondTokenId], + [firstAmount, secondAmount], + '0x', + { from: proxy }, + ), + 'ERC1155: caller is not token owner or approved', + ); + }); + }); + + context('when operator is approved by multiTokenHolder', function () { + beforeEach(async function () { + this.toWhom = recipient; + await this.token.setApprovalForAll(proxy, true, { from: multiTokenHolder }); + this.transferLogs = await this.token.safeBatchTransferFrom( + multiTokenHolder, + recipient, + [firstTokenId, secondTokenId], + [firstAmount, secondAmount], + '0x', + { from: proxy }, + ); + }); + + batchTransferWasSuccessful.call(this, { + operator: proxy, + from: multiTokenHolder, + ids: [firstTokenId, secondTokenId], + values: [firstAmount, secondAmount], + }); + + it("preserves operator's balances not involved in the transfer", async function () { + const balance1 = await this.token.balanceOf(proxy, firstTokenId); + expect(balance1).to.be.a.bignumber.equal('0'); + const balance2 = await this.token.balanceOf(proxy, secondTokenId); + expect(balance2).to.be.a.bignumber.equal('0'); + }); + }); + }); + + context('when sending to a valid receiver', function () { + beforeEach(async function () { + this.receiver = await ERC1155ReceiverMock.new( + RECEIVER_SINGLE_MAGIC_VALUE, + false, + RECEIVER_BATCH_MAGIC_VALUE, + false, + ); + }); + + context('without data', function () { + beforeEach(async function () { + this.toWhom = this.receiver.address; + this.transferReceipt = await this.token.safeBatchTransferFrom( + multiTokenHolder, + this.receiver.address, + [firstTokenId, secondTokenId], + [firstAmount, secondAmount], + '0x', + { from: multiTokenHolder }, + ); + this.transferLogs = this.transferReceipt; + }); + + batchTransferWasSuccessful.call(this, { + operator: multiTokenHolder, + from: multiTokenHolder, + ids: [firstTokenId, secondTokenId], + values: [firstAmount, secondAmount], + }); + + it('calls onERC1155BatchReceived', async function () { + await expectEvent.inTransaction(this.transferReceipt.tx, ERC1155ReceiverMock, 'BatchReceived', { + operator: multiTokenHolder, + from: multiTokenHolder, + // ids: [firstTokenId, secondTokenId], + // values: [firstAmount, secondAmount], + data: null, + }); + }); + }); + + context('with data', function () { + const data = '0xf00dd00d'; + beforeEach(async function () { + this.toWhom = this.receiver.address; + this.transferReceipt = await this.token.safeBatchTransferFrom( + multiTokenHolder, + this.receiver.address, + [firstTokenId, secondTokenId], + [firstAmount, secondAmount], + data, + { from: multiTokenHolder }, + ); + this.transferLogs = this.transferReceipt; + }); + + batchTransferWasSuccessful.call(this, { + operator: multiTokenHolder, + from: multiTokenHolder, + ids: [firstTokenId, secondTokenId], + values: [firstAmount, secondAmount], + }); + + it('calls onERC1155Received', async function () { + await expectEvent.inTransaction(this.transferReceipt.tx, ERC1155ReceiverMock, 'BatchReceived', { + operator: multiTokenHolder, + from: multiTokenHolder, + // ids: [firstTokenId, secondTokenId], + // values: [firstAmount, secondAmount], + data, + }); + }); + }); + }); + + context('to a receiver contract returning unexpected value', function () { + beforeEach(async function () { + this.receiver = await ERC1155ReceiverMock.new( + RECEIVER_SINGLE_MAGIC_VALUE, + false, + RECEIVER_SINGLE_MAGIC_VALUE, + false, + ); + }); + + it('reverts', async function () { + await expectRevert( + this.token.safeBatchTransferFrom( + multiTokenHolder, + this.receiver.address, + [firstTokenId, secondTokenId], + [firstAmount, secondAmount], + '0x', + { from: multiTokenHolder }, + ), + 'ERC1155: ERC1155Receiver rejected tokens', + ); + }); + }); + + context('to a receiver contract that reverts', function () { + beforeEach(async function () { + this.receiver = await ERC1155ReceiverMock.new( + RECEIVER_SINGLE_MAGIC_VALUE, + false, + RECEIVER_BATCH_MAGIC_VALUE, + true, + ); + }); + + it('reverts', async function () { + await expectRevert( + this.token.safeBatchTransferFrom( + multiTokenHolder, + this.receiver.address, + [firstTokenId, secondTokenId], + [firstAmount, secondAmount], + '0x', + { from: multiTokenHolder }, + ), + 'ERC1155ReceiverMock: reverting on batch receive', + ); + }); + }); + + context('to a receiver contract that reverts only on single transfers', function () { + beforeEach(async function () { + this.receiver = await ERC1155ReceiverMock.new( + RECEIVER_SINGLE_MAGIC_VALUE, + true, + RECEIVER_BATCH_MAGIC_VALUE, + false, + ); + + this.toWhom = this.receiver.address; + this.transferReceipt = await this.token.safeBatchTransferFrom( + multiTokenHolder, + this.receiver.address, + [firstTokenId, secondTokenId], + [firstAmount, secondAmount], + '0x', + { from: multiTokenHolder }, + ); + this.transferLogs = this.transferReceipt; + }); + + batchTransferWasSuccessful.call(this, { + operator: multiTokenHolder, + from: multiTokenHolder, + ids: [firstTokenId, secondTokenId], + values: [firstAmount, secondAmount], + }); + + it('calls onERC1155BatchReceived', async function () { + await expectEvent.inTransaction(this.transferReceipt.tx, ERC1155ReceiverMock, 'BatchReceived', { + operator: multiTokenHolder, + from: multiTokenHolder, + // ids: [firstTokenId, secondTokenId], + // values: [firstAmount, secondAmount], + data: null, + }); + }); + }); + + context('to a contract that does not implement the required function', function () { + it('reverts', async function () { + const invalidReceiver = this.token; + await expectRevert.unspecified( + this.token.safeBatchTransferFrom( + multiTokenHolder, + invalidReceiver.address, + [firstTokenId, secondTokenId], + [firstAmount, secondAmount], + '0x', + { from: multiTokenHolder }, + ), + ); + }); + }); + }); + + shouldSupportInterfaces(['ERC165', 'ERC1155']); + }); +} + +module.exports = { + shouldBehaveLikeERC1155, +}; diff --git a/lib/openzeppelin-contracts/test/token/ERC1155/ERC1155.test.js b/lib/openzeppelin-contracts/test/token/ERC1155/ERC1155.test.js new file mode 100644 index 0000000..ff432d3 --- /dev/null +++ b/lib/openzeppelin-contracts/test/token/ERC1155/ERC1155.test.js @@ -0,0 +1,235 @@ +const { BN, constants, expectEvent, expectRevert } = require('@openzeppelin/test-helpers'); +const { ZERO_ADDRESS } = constants; + +const { expect } = require('chai'); + +const { shouldBehaveLikeERC1155 } = require('./ERC1155.behavior'); +const ERC1155Mock = artifacts.require('$ERC1155'); + +contract('ERC1155', function (accounts) { + const [operator, tokenHolder, tokenBatchHolder, ...otherAccounts] = accounts; + + const initialURI = 'https://token-cdn-domain/{id}.json'; + + beforeEach(async function () { + this.token = await ERC1155Mock.new(initialURI); + }); + + shouldBehaveLikeERC1155(otherAccounts); + + describe('internal functions', function () { + const tokenId = new BN(1990); + const mintAmount = new BN(9001); + const burnAmount = new BN(3000); + + const tokenBatchIds = [new BN(2000), new BN(2010), new BN(2020)]; + const mintAmounts = [new BN(5000), new BN(10000), new BN(42195)]; + const burnAmounts = [new BN(5000), new BN(9001), new BN(195)]; + + const data = '0x12345678'; + + describe('_mint', function () { + it('reverts with a zero destination address', async function () { + await expectRevert( + this.token.$_mint(ZERO_ADDRESS, tokenId, mintAmount, data), + 'ERC1155: mint to the zero address', + ); + }); + + context('with minted tokens', function () { + beforeEach(async function () { + this.receipt = await this.token.$_mint(tokenHolder, tokenId, mintAmount, data, { from: operator }); + }); + + it('emits a TransferSingle event', function () { + expectEvent(this.receipt, 'TransferSingle', { + operator, + from: ZERO_ADDRESS, + to: tokenHolder, + id: tokenId, + value: mintAmount, + }); + }); + + it('credits the minted amount of tokens', async function () { + expect(await this.token.balanceOf(tokenHolder, tokenId)).to.be.bignumber.equal(mintAmount); + }); + }); + }); + + describe('_mintBatch', function () { + it('reverts with a zero destination address', async function () { + await expectRevert( + this.token.$_mintBatch(ZERO_ADDRESS, tokenBatchIds, mintAmounts, data), + 'ERC1155: mint to the zero address', + ); + }); + + it('reverts if length of inputs do not match', async function () { + await expectRevert( + this.token.$_mintBatch(tokenBatchHolder, tokenBatchIds, mintAmounts.slice(1), data), + 'ERC1155: ids and amounts length mismatch', + ); + + await expectRevert( + this.token.$_mintBatch(tokenBatchHolder, tokenBatchIds.slice(1), mintAmounts, data), + 'ERC1155: ids and amounts length mismatch', + ); + }); + + context('with minted batch of tokens', function () { + beforeEach(async function () { + this.receipt = await this.token.$_mintBatch(tokenBatchHolder, tokenBatchIds, mintAmounts, data, { + from: operator, + }); + }); + + it('emits a TransferBatch event', function () { + expectEvent(this.receipt, 'TransferBatch', { + operator, + from: ZERO_ADDRESS, + to: tokenBatchHolder, + }); + }); + + it('credits the minted batch of tokens', async function () { + const holderBatchBalances = await this.token.balanceOfBatch( + new Array(tokenBatchIds.length).fill(tokenBatchHolder), + tokenBatchIds, + ); + + for (let i = 0; i < holderBatchBalances.length; i++) { + expect(holderBatchBalances[i]).to.be.bignumber.equal(mintAmounts[i]); + } + }); + }); + }); + + describe('_burn', function () { + it("reverts when burning the zero account's tokens", async function () { + await expectRevert(this.token.$_burn(ZERO_ADDRESS, tokenId, mintAmount), 'ERC1155: burn from the zero address'); + }); + + it('reverts when burning a non-existent token id', async function () { + await expectRevert(this.token.$_burn(tokenHolder, tokenId, mintAmount), 'ERC1155: burn amount exceeds balance'); + }); + + it('reverts when burning more than available tokens', async function () { + await this.token.$_mint(tokenHolder, tokenId, mintAmount, data, { from: operator }); + + await expectRevert( + this.token.$_burn(tokenHolder, tokenId, mintAmount.addn(1)), + 'ERC1155: burn amount exceeds balance', + ); + }); + + context('with minted-then-burnt tokens', function () { + beforeEach(async function () { + await this.token.$_mint(tokenHolder, tokenId, mintAmount, data); + this.receipt = await this.token.$_burn(tokenHolder, tokenId, burnAmount, { from: operator }); + }); + + it('emits a TransferSingle event', function () { + expectEvent(this.receipt, 'TransferSingle', { + operator, + from: tokenHolder, + to: ZERO_ADDRESS, + id: tokenId, + value: burnAmount, + }); + }); + + it('accounts for both minting and burning', async function () { + expect(await this.token.balanceOf(tokenHolder, tokenId)).to.be.bignumber.equal(mintAmount.sub(burnAmount)); + }); + }); + }); + + describe('_burnBatch', function () { + it("reverts when burning the zero account's tokens", async function () { + await expectRevert( + this.token.$_burnBatch(ZERO_ADDRESS, tokenBatchIds, burnAmounts), + 'ERC1155: burn from the zero address', + ); + }); + + it('reverts if length of inputs do not match', async function () { + await expectRevert( + this.token.$_burnBatch(tokenBatchHolder, tokenBatchIds, burnAmounts.slice(1)), + 'ERC1155: ids and amounts length mismatch', + ); + + await expectRevert( + this.token.$_burnBatch(tokenBatchHolder, tokenBatchIds.slice(1), burnAmounts), + 'ERC1155: ids and amounts length mismatch', + ); + }); + + it('reverts when burning a non-existent token id', async function () { + await expectRevert( + this.token.$_burnBatch(tokenBatchHolder, tokenBatchIds, burnAmounts), + 'ERC1155: burn amount exceeds balance', + ); + }); + + context('with minted-then-burnt tokens', function () { + beforeEach(async function () { + await this.token.$_mintBatch(tokenBatchHolder, tokenBatchIds, mintAmounts, data); + this.receipt = await this.token.$_burnBatch(tokenBatchHolder, tokenBatchIds, burnAmounts, { from: operator }); + }); + + it('emits a TransferBatch event', function () { + expectEvent(this.receipt, 'TransferBatch', { + operator, + from: tokenBatchHolder, + to: ZERO_ADDRESS, + // ids: tokenBatchIds, + // values: burnAmounts, + }); + }); + + it('accounts for both minting and burning', async function () { + const holderBatchBalances = await this.token.balanceOfBatch( + new Array(tokenBatchIds.length).fill(tokenBatchHolder), + tokenBatchIds, + ); + + for (let i = 0; i < holderBatchBalances.length; i++) { + expect(holderBatchBalances[i]).to.be.bignumber.equal(mintAmounts[i].sub(burnAmounts[i])); + } + }); + }); + }); + }); + + describe('ERC1155MetadataURI', function () { + const firstTokenID = new BN('42'); + const secondTokenID = new BN('1337'); + + it('emits no URI event in constructor', async function () { + await expectEvent.notEmitted.inConstruction(this.token, 'URI'); + }); + + it('sets the initial URI for all token types', async function () { + expect(await this.token.uri(firstTokenID)).to.be.equal(initialURI); + expect(await this.token.uri(secondTokenID)).to.be.equal(initialURI); + }); + + describe('_setURI', function () { + const newURI = 'https://token-cdn-domain/{locale}/{id}.json'; + + it('emits no URI event', async function () { + const receipt = await this.token.$_setURI(newURI); + + expectEvent.notEmitted(receipt, 'URI'); + }); + + it('sets the new URI for all token types', async function () { + await this.token.$_setURI(newURI); + + expect(await this.token.uri(firstTokenID)).to.be.equal(newURI); + expect(await this.token.uri(secondTokenID)).to.be.equal(newURI); + }); + }); + }); +}); diff --git a/lib/openzeppelin-contracts/test/token/ERC1155/extensions/ERC1155Burnable.test.js b/lib/openzeppelin-contracts/test/token/ERC1155/extensions/ERC1155Burnable.test.js new file mode 100644 index 0000000..f80d993 --- /dev/null +++ b/lib/openzeppelin-contracts/test/token/ERC1155/extensions/ERC1155Burnable.test.js @@ -0,0 +1,67 @@ +const { BN, expectRevert } = require('@openzeppelin/test-helpers'); + +const { expect } = require('chai'); + +const ERC1155Burnable = artifacts.require('$ERC1155Burnable'); + +contract('ERC1155Burnable', function (accounts) { + const [holder, operator, other] = accounts; + + const uri = 'https://token.com'; + + const tokenIds = [new BN('42'), new BN('1137')]; + const amounts = [new BN('3000'), new BN('9902')]; + + beforeEach(async function () { + this.token = await ERC1155Burnable.new(uri); + + await this.token.$_mint(holder, tokenIds[0], amounts[0], '0x'); + await this.token.$_mint(holder, tokenIds[1], amounts[1], '0x'); + }); + + describe('burn', function () { + it('holder can burn their tokens', async function () { + await this.token.burn(holder, tokenIds[0], amounts[0].subn(1), { from: holder }); + + expect(await this.token.balanceOf(holder, tokenIds[0])).to.be.bignumber.equal('1'); + }); + + it("approved operators can burn the holder's tokens", async function () { + await this.token.setApprovalForAll(operator, true, { from: holder }); + await this.token.burn(holder, tokenIds[0], amounts[0].subn(1), { from: operator }); + + expect(await this.token.balanceOf(holder, tokenIds[0])).to.be.bignumber.equal('1'); + }); + + it("unapproved accounts cannot burn the holder's tokens", async function () { + await expectRevert( + this.token.burn(holder, tokenIds[0], amounts[0].subn(1), { from: other }), + 'ERC1155: caller is not token owner or approved', + ); + }); + }); + + describe('burnBatch', function () { + it('holder can burn their tokens', async function () { + await this.token.burnBatch(holder, tokenIds, [amounts[0].subn(1), amounts[1].subn(2)], { from: holder }); + + expect(await this.token.balanceOf(holder, tokenIds[0])).to.be.bignumber.equal('1'); + expect(await this.token.balanceOf(holder, tokenIds[1])).to.be.bignumber.equal('2'); + }); + + it("approved operators can burn the holder's tokens", async function () { + await this.token.setApprovalForAll(operator, true, { from: holder }); + await this.token.burnBatch(holder, tokenIds, [amounts[0].subn(1), amounts[1].subn(2)], { from: operator }); + + expect(await this.token.balanceOf(holder, tokenIds[0])).to.be.bignumber.equal('1'); + expect(await this.token.balanceOf(holder, tokenIds[1])).to.be.bignumber.equal('2'); + }); + + it("unapproved accounts cannot burn the holder's tokens", async function () { + await expectRevert( + this.token.burnBatch(holder, tokenIds, [amounts[0].subn(1), amounts[1].subn(2)], { from: other }), + 'ERC1155: caller is not token owner or approved', + ); + }); + }); +}); diff --git a/lib/openzeppelin-contracts/test/token/ERC1155/extensions/ERC1155Pausable.test.js b/lib/openzeppelin-contracts/test/token/ERC1155/extensions/ERC1155Pausable.test.js new file mode 100644 index 0000000..f4d5ced --- /dev/null +++ b/lib/openzeppelin-contracts/test/token/ERC1155/extensions/ERC1155Pausable.test.js @@ -0,0 +1,108 @@ +const { BN, expectRevert } = require('@openzeppelin/test-helpers'); + +const { expect } = require('chai'); + +const ERC1155Pausable = artifacts.require('$ERC1155Pausable'); + +contract('ERC1155Pausable', function (accounts) { + const [holder, operator, receiver, other] = accounts; + + const uri = 'https://token.com'; + + beforeEach(async function () { + this.token = await ERC1155Pausable.new(uri); + }); + + context('when token is paused', function () { + const firstTokenId = new BN('37'); + const firstTokenAmount = new BN('42'); + + const secondTokenId = new BN('19842'); + const secondTokenAmount = new BN('23'); + + beforeEach(async function () { + await this.token.setApprovalForAll(operator, true, { from: holder }); + await this.token.$_mint(holder, firstTokenId, firstTokenAmount, '0x'); + + await this.token.$_pause(); + }); + + it('reverts when trying to safeTransferFrom from holder', async function () { + await expectRevert( + this.token.safeTransferFrom(holder, receiver, firstTokenId, firstTokenAmount, '0x', { from: holder }), + 'ERC1155Pausable: token transfer while paused', + ); + }); + + it('reverts when trying to safeTransferFrom from operator', async function () { + await expectRevert( + this.token.safeTransferFrom(holder, receiver, firstTokenId, firstTokenAmount, '0x', { from: operator }), + 'ERC1155Pausable: token transfer while paused', + ); + }); + + it('reverts when trying to safeBatchTransferFrom from holder', async function () { + await expectRevert( + this.token.safeBatchTransferFrom(holder, receiver, [firstTokenId], [firstTokenAmount], '0x', { from: holder }), + 'ERC1155Pausable: token transfer while paused', + ); + }); + + it('reverts when trying to safeBatchTransferFrom from operator', async function () { + await expectRevert( + this.token.safeBatchTransferFrom(holder, receiver, [firstTokenId], [firstTokenAmount], '0x', { + from: operator, + }), + 'ERC1155Pausable: token transfer while paused', + ); + }); + + it('reverts when trying to mint', async function () { + await expectRevert( + this.token.$_mint(holder, secondTokenId, secondTokenAmount, '0x'), + 'ERC1155Pausable: token transfer while paused', + ); + }); + + it('reverts when trying to mintBatch', async function () { + await expectRevert( + this.token.$_mintBatch(holder, [secondTokenId], [secondTokenAmount], '0x'), + 'ERC1155Pausable: token transfer while paused', + ); + }); + + it('reverts when trying to burn', async function () { + await expectRevert( + this.token.$_burn(holder, firstTokenId, firstTokenAmount), + 'ERC1155Pausable: token transfer while paused', + ); + }); + + it('reverts when trying to burnBatch', async function () { + await expectRevert( + this.token.$_burnBatch(holder, [firstTokenId], [firstTokenAmount]), + 'ERC1155Pausable: token transfer while paused', + ); + }); + + describe('setApprovalForAll', function () { + it('approves an operator', async function () { + await this.token.setApprovalForAll(other, true, { from: holder }); + expect(await this.token.isApprovedForAll(holder, other)).to.equal(true); + }); + }); + + describe('balanceOf', function () { + it('returns the amount of tokens owned by the given address', async function () { + const balance = await this.token.balanceOf(holder, firstTokenId); + expect(balance).to.be.bignumber.equal(firstTokenAmount); + }); + }); + + describe('isApprovedForAll', function () { + it('returns the approval of the operator', async function () { + expect(await this.token.isApprovedForAll(holder, operator)).to.equal(true); + }); + }); + }); +}); diff --git a/lib/openzeppelin-contracts/test/token/ERC1155/extensions/ERC1155Supply.test.js b/lib/openzeppelin-contracts/test/token/ERC1155/extensions/ERC1155Supply.test.js new file mode 100644 index 0000000..721d5a7 --- /dev/null +++ b/lib/openzeppelin-contracts/test/token/ERC1155/extensions/ERC1155Supply.test.js @@ -0,0 +1,107 @@ +const { BN } = require('@openzeppelin/test-helpers'); + +const { expect } = require('chai'); + +const ERC1155Supply = artifacts.require('$ERC1155Supply'); + +contract('ERC1155Supply', function (accounts) { + const [holder] = accounts; + + const uri = 'https://token.com'; + + const firstTokenId = new BN('37'); + const firstTokenAmount = new BN('42'); + + const secondTokenId = new BN('19842'); + const secondTokenAmount = new BN('23'); + + beforeEach(async function () { + this.token = await ERC1155Supply.new(uri); + }); + + context('before mint', function () { + it('exist', async function () { + expect(await this.token.exists(firstTokenId)).to.be.equal(false); + }); + + it('totalSupply', async function () { + expect(await this.token.totalSupply(firstTokenId)).to.be.bignumber.equal('0'); + }); + }); + + context('after mint', function () { + context('single', function () { + beforeEach(async function () { + await this.token.$_mint(holder, firstTokenId, firstTokenAmount, '0x'); + }); + + it('exist', async function () { + expect(await this.token.exists(firstTokenId)).to.be.equal(true); + }); + + it('totalSupply', async function () { + expect(await this.token.totalSupply(firstTokenId)).to.be.bignumber.equal(firstTokenAmount); + }); + }); + + context('batch', function () { + beforeEach(async function () { + await this.token.$_mintBatch( + holder, + [firstTokenId, secondTokenId], + [firstTokenAmount, secondTokenAmount], + '0x', + ); + }); + + it('exist', async function () { + expect(await this.token.exists(firstTokenId)).to.be.equal(true); + expect(await this.token.exists(secondTokenId)).to.be.equal(true); + }); + + it('totalSupply', async function () { + expect(await this.token.totalSupply(firstTokenId)).to.be.bignumber.equal(firstTokenAmount); + expect(await this.token.totalSupply(secondTokenId)).to.be.bignumber.equal(secondTokenAmount); + }); + }); + }); + + context('after burn', function () { + context('single', function () { + beforeEach(async function () { + await this.token.$_mint(holder, firstTokenId, firstTokenAmount, '0x'); + await this.token.$_burn(holder, firstTokenId, firstTokenAmount); + }); + + it('exist', async function () { + expect(await this.token.exists(firstTokenId)).to.be.equal(false); + }); + + it('totalSupply', async function () { + expect(await this.token.totalSupply(firstTokenId)).to.be.bignumber.equal('0'); + }); + }); + + context('batch', function () { + beforeEach(async function () { + await this.token.$_mintBatch( + holder, + [firstTokenId, secondTokenId], + [firstTokenAmount, secondTokenAmount], + '0x', + ); + await this.token.$_burnBatch(holder, [firstTokenId, secondTokenId], [firstTokenAmount, secondTokenAmount]); + }); + + it('exist', async function () { + expect(await this.token.exists(firstTokenId)).to.be.equal(false); + expect(await this.token.exists(secondTokenId)).to.be.equal(false); + }); + + it('totalSupply', async function () { + expect(await this.token.totalSupply(firstTokenId)).to.be.bignumber.equal('0'); + expect(await this.token.totalSupply(secondTokenId)).to.be.bignumber.equal('0'); + }); + }); + }); +}); diff --git a/lib/openzeppelin-contracts/test/token/ERC1155/extensions/ERC1155URIStorage.test.js b/lib/openzeppelin-contracts/test/token/ERC1155/extensions/ERC1155URIStorage.test.js new file mode 100644 index 0000000..95d9c18 --- /dev/null +++ b/lib/openzeppelin-contracts/test/token/ERC1155/extensions/ERC1155URIStorage.test.js @@ -0,0 +1,66 @@ +const { BN, expectEvent } = require('@openzeppelin/test-helpers'); + +const { expect } = require('chai'); +const { artifacts } = require('hardhat'); + +const ERC1155URIStorage = artifacts.require('$ERC1155URIStorage'); + +contract(['ERC1155URIStorage'], function (accounts) { + const [holder] = accounts; + + const erc1155Uri = 'https://token.com/nfts/'; + const baseUri = 'https://token.com/'; + + const tokenId = new BN('1'); + const amount = new BN('3000'); + + describe('with base uri set', function () { + beforeEach(async function () { + this.token = await ERC1155URIStorage.new(erc1155Uri); + await this.token.$_setBaseURI(baseUri); + + await this.token.$_mint(holder, tokenId, amount, '0x'); + }); + + it('can request the token uri, returning the erc1155 uri if no token uri was set', async function () { + const receivedTokenUri = await this.token.uri(tokenId); + + expect(receivedTokenUri).to.be.equal(erc1155Uri); + }); + + it('can request the token uri, returning the concatenated uri if a token uri was set', async function () { + const tokenUri = '1234/'; + const receipt = await this.token.$_setURI(tokenId, tokenUri); + + const receivedTokenUri = await this.token.uri(tokenId); + + const expectedUri = `${baseUri}${tokenUri}`; + expect(receivedTokenUri).to.be.equal(expectedUri); + expectEvent(receipt, 'URI', { value: expectedUri, id: tokenId }); + }); + }); + + describe('with base uri set to the empty string', function () { + beforeEach(async function () { + this.token = await ERC1155URIStorage.new(''); + + await this.token.$_mint(holder, tokenId, amount, '0x'); + }); + + it('can request the token uri, returning an empty string if no token uri was set', async function () { + const receivedTokenUri = await this.token.uri(tokenId); + + expect(receivedTokenUri).to.be.equal(''); + }); + + it('can request the token uri, returning the token uri if a token uri was set', async function () { + const tokenUri = 'ipfs://1234/'; + const receipt = await this.token.$_setURI(tokenId, tokenUri); + + const receivedTokenUri = await this.token.uri(tokenId); + + expect(receivedTokenUri).to.be.equal(tokenUri); + expectEvent(receipt, 'URI', { value: tokenUri, id: tokenId }); + }); + }); +}); diff --git a/lib/openzeppelin-contracts/test/token/ERC1155/presets/ERC1155PresetMinterPauser.test.js b/lib/openzeppelin-contracts/test/token/ERC1155/presets/ERC1155PresetMinterPauser.test.js new file mode 100644 index 0000000..12d2594 --- /dev/null +++ b/lib/openzeppelin-contracts/test/token/ERC1155/presets/ERC1155PresetMinterPauser.test.js @@ -0,0 +1,156 @@ +const { BN, constants, expectEvent, expectRevert } = require('@openzeppelin/test-helpers'); +const { ZERO_ADDRESS } = constants; +const { shouldSupportInterfaces } = require('../../../utils/introspection/SupportsInterface.behavior'); + +const { expect } = require('chai'); + +const ERC1155PresetMinterPauser = artifacts.require('ERC1155PresetMinterPauser'); + +contract('ERC1155PresetMinterPauser', function (accounts) { + const [deployer, other] = accounts; + + const firstTokenId = new BN('845'); + const firstTokenIdAmount = new BN('5000'); + + const secondTokenId = new BN('48324'); + const secondTokenIdAmount = new BN('77875'); + + const DEFAULT_ADMIN_ROLE = '0x0000000000000000000000000000000000000000000000000000000000000000'; + const MINTER_ROLE = web3.utils.soliditySha3('MINTER_ROLE'); + const PAUSER_ROLE = web3.utils.soliditySha3('PAUSER_ROLE'); + + const uri = 'https://token.com'; + + beforeEach(async function () { + this.token = await ERC1155PresetMinterPauser.new(uri, { from: deployer }); + }); + + shouldSupportInterfaces(['ERC1155', 'AccessControl', 'AccessControlEnumerable']); + + it('deployer has the default admin role', async function () { + expect(await this.token.getRoleMemberCount(DEFAULT_ADMIN_ROLE)).to.be.bignumber.equal('1'); + expect(await this.token.getRoleMember(DEFAULT_ADMIN_ROLE, 0)).to.equal(deployer); + }); + + it('deployer has the minter role', async function () { + expect(await this.token.getRoleMemberCount(MINTER_ROLE)).to.be.bignumber.equal('1'); + expect(await this.token.getRoleMember(MINTER_ROLE, 0)).to.equal(deployer); + }); + + it('deployer has the pauser role', async function () { + expect(await this.token.getRoleMemberCount(PAUSER_ROLE)).to.be.bignumber.equal('1'); + expect(await this.token.getRoleMember(PAUSER_ROLE, 0)).to.equal(deployer); + }); + + it('minter and pauser role admin is the default admin', async function () { + expect(await this.token.getRoleAdmin(MINTER_ROLE)).to.equal(DEFAULT_ADMIN_ROLE); + expect(await this.token.getRoleAdmin(PAUSER_ROLE)).to.equal(DEFAULT_ADMIN_ROLE); + }); + + describe('minting', function () { + it('deployer can mint tokens', async function () { + const receipt = await this.token.mint(other, firstTokenId, firstTokenIdAmount, '0x', { from: deployer }); + expectEvent(receipt, 'TransferSingle', { + operator: deployer, + from: ZERO_ADDRESS, + to: other, + value: firstTokenIdAmount, + id: firstTokenId, + }); + + expect(await this.token.balanceOf(other, firstTokenId)).to.be.bignumber.equal(firstTokenIdAmount); + }); + + it('other accounts cannot mint tokens', async function () { + await expectRevert( + this.token.mint(other, firstTokenId, firstTokenIdAmount, '0x', { from: other }), + 'ERC1155PresetMinterPauser: must have minter role to mint', + ); + }); + }); + + describe('batched minting', function () { + it('deployer can batch mint tokens', async function () { + const receipt = await this.token.mintBatch( + other, + [firstTokenId, secondTokenId], + [firstTokenIdAmount, secondTokenIdAmount], + '0x', + { from: deployer }, + ); + + expectEvent(receipt, 'TransferBatch', { operator: deployer, from: ZERO_ADDRESS, to: other }); + + expect(await this.token.balanceOf(other, firstTokenId)).to.be.bignumber.equal(firstTokenIdAmount); + }); + + it('other accounts cannot batch mint tokens', async function () { + await expectRevert( + this.token.mintBatch(other, [firstTokenId, secondTokenId], [firstTokenIdAmount, secondTokenIdAmount], '0x', { + from: other, + }), + 'ERC1155PresetMinterPauser: must have minter role to mint', + ); + }); + }); + + describe('pausing', function () { + it('deployer can pause', async function () { + const receipt = await this.token.pause({ from: deployer }); + expectEvent(receipt, 'Paused', { account: deployer }); + + expect(await this.token.paused()).to.equal(true); + }); + + it('deployer can unpause', async function () { + await this.token.pause({ from: deployer }); + + const receipt = await this.token.unpause({ from: deployer }); + expectEvent(receipt, 'Unpaused', { account: deployer }); + + expect(await this.token.paused()).to.equal(false); + }); + + it('cannot mint while paused', async function () { + await this.token.pause({ from: deployer }); + + await expectRevert( + this.token.mint(other, firstTokenId, firstTokenIdAmount, '0x', { from: deployer }), + 'ERC1155Pausable: token transfer while paused', + ); + }); + + it('other accounts cannot pause', async function () { + await expectRevert( + this.token.pause({ from: other }), + 'ERC1155PresetMinterPauser: must have pauser role to pause', + ); + }); + + it('other accounts cannot unpause', async function () { + await this.token.pause({ from: deployer }); + + await expectRevert( + this.token.unpause({ from: other }), + 'ERC1155PresetMinterPauser: must have pauser role to unpause', + ); + }); + }); + + describe('burning', function () { + it('holders can burn their tokens', async function () { + await this.token.mint(other, firstTokenId, firstTokenIdAmount, '0x', { from: deployer }); + + const receipt = await this.token.burn(other, firstTokenId, firstTokenIdAmount.subn(1), { from: other }); + expectEvent(receipt, 'TransferSingle', { + operator: other, + from: other, + to: ZERO_ADDRESS, + value: firstTokenIdAmount.subn(1), + id: firstTokenId, + }); + + expect(await this.token.balanceOf(other, firstTokenId)).to.be.bignumber.equal('1'); + }); + }); +}); diff --git a/lib/openzeppelin-contracts/test/token/ERC1155/utils/ERC1155Holder.test.js b/lib/openzeppelin-contracts/test/token/ERC1155/utils/ERC1155Holder.test.js new file mode 100644 index 0000000..864e89b --- /dev/null +++ b/lib/openzeppelin-contracts/test/token/ERC1155/utils/ERC1155Holder.test.js @@ -0,0 +1,64 @@ +const { BN } = require('@openzeppelin/test-helpers'); + +const ERC1155Holder = artifacts.require('ERC1155Holder'); +const ERC1155 = artifacts.require('$ERC1155'); + +const { expect } = require('chai'); + +const { shouldSupportInterfaces } = require('../../../utils/introspection/SupportsInterface.behavior'); + +contract('ERC1155Holder', function (accounts) { + const [creator] = accounts; + const uri = 'https://token-cdn-domain/{id}.json'; + const multiTokenIds = [new BN(1), new BN(2), new BN(3)]; + const multiTokenAmounts = [new BN(1000), new BN(2000), new BN(3000)]; + const transferData = '0x12345678'; + + beforeEach(async function () { + this.multiToken = await ERC1155.new(uri); + this.holder = await ERC1155Holder.new(); + await this.multiToken.$_mintBatch(creator, multiTokenIds, multiTokenAmounts, '0x'); + }); + + shouldSupportInterfaces(['ERC165', 'ERC1155Receiver']); + + it('receives ERC1155 tokens from a single ID', async function () { + await this.multiToken.safeTransferFrom( + creator, + this.holder.address, + multiTokenIds[0], + multiTokenAmounts[0], + transferData, + { from: creator }, + ); + + expect(await this.multiToken.balanceOf(this.holder.address, multiTokenIds[0])).to.be.bignumber.equal( + multiTokenAmounts[0], + ); + + for (let i = 1; i < multiTokenIds.length; i++) { + expect(await this.multiToken.balanceOf(this.holder.address, multiTokenIds[i])).to.be.bignumber.equal(new BN(0)); + } + }); + + it('receives ERC1155 tokens from a multiple IDs', async function () { + for (let i = 0; i < multiTokenIds.length; i++) { + expect(await this.multiToken.balanceOf(this.holder.address, multiTokenIds[i])).to.be.bignumber.equal(new BN(0)); + } + + await this.multiToken.safeBatchTransferFrom( + creator, + this.holder.address, + multiTokenIds, + multiTokenAmounts, + transferData, + { from: creator }, + ); + + for (let i = 0; i < multiTokenIds.length; i++) { + expect(await this.multiToken.balanceOf(this.holder.address, multiTokenIds[i])).to.be.bignumber.equal( + multiTokenAmounts[i], + ); + } + }); +}); diff --git a/lib/openzeppelin-contracts/test/token/ERC20/ERC20.behavior.js b/lib/openzeppelin-contracts/test/token/ERC20/ERC20.behavior.js new file mode 100644 index 0000000..41e47f0 --- /dev/null +++ b/lib/openzeppelin-contracts/test/token/ERC20/ERC20.behavior.js @@ -0,0 +1,322 @@ +const { BN, constants, expectEvent, expectRevert } = require('@openzeppelin/test-helpers'); +const { expect } = require('chai'); +const { ZERO_ADDRESS, MAX_UINT256 } = constants; + +function shouldBehaveLikeERC20(errorPrefix, initialSupply, initialHolder, recipient, anotherAccount) { + describe('total supply', function () { + it('returns the total amount of tokens', async function () { + expect(await this.token.totalSupply()).to.be.bignumber.equal(initialSupply); + }); + }); + + describe('balanceOf', function () { + describe('when the requested account has no tokens', function () { + it('returns zero', async function () { + expect(await this.token.balanceOf(anotherAccount)).to.be.bignumber.equal('0'); + }); + }); + + describe('when the requested account has some tokens', function () { + it('returns the total amount of tokens', async function () { + expect(await this.token.balanceOf(initialHolder)).to.be.bignumber.equal(initialSupply); + }); + }); + }); + + describe('transfer', function () { + shouldBehaveLikeERC20Transfer(errorPrefix, initialHolder, recipient, initialSupply, function (from, to, value) { + return this.token.transfer(to, value, { from }); + }); + }); + + describe('transfer from', function () { + const spender = recipient; + + describe('when the token owner is not the zero address', function () { + const tokenOwner = initialHolder; + + describe('when the recipient is not the zero address', function () { + const to = anotherAccount; + + describe('when the spender has enough allowance', function () { + beforeEach(async function () { + await this.token.approve(spender, initialSupply, { from: initialHolder }); + }); + + describe('when the token owner has enough balance', function () { + const amount = initialSupply; + + it('transfers the requested amount', async function () { + await this.token.transferFrom(tokenOwner, to, amount, { from: spender }); + + expect(await this.token.balanceOf(tokenOwner)).to.be.bignumber.equal('0'); + + expect(await this.token.balanceOf(to)).to.be.bignumber.equal(amount); + }); + + it('decreases the spender allowance', async function () { + await this.token.transferFrom(tokenOwner, to, amount, { from: spender }); + + expect(await this.token.allowance(tokenOwner, spender)).to.be.bignumber.equal('0'); + }); + + it('emits a transfer event', async function () { + expectEvent(await this.token.transferFrom(tokenOwner, to, amount, { from: spender }), 'Transfer', { + from: tokenOwner, + to: to, + value: amount, + }); + }); + + it('emits an approval event', async function () { + expectEvent(await this.token.transferFrom(tokenOwner, to, amount, { from: spender }), 'Approval', { + owner: tokenOwner, + spender: spender, + value: await this.token.allowance(tokenOwner, spender), + }); + }); + }); + + describe('when the token owner does not have enough balance', function () { + const amount = initialSupply; + + beforeEach('reducing balance', async function () { + await this.token.transfer(to, 1, { from: tokenOwner }); + }); + + it('reverts', async function () { + await expectRevert( + this.token.transferFrom(tokenOwner, to, amount, { from: spender }), + `${errorPrefix}: transfer amount exceeds balance`, + ); + }); + }); + }); + + describe('when the spender does not have enough allowance', function () { + const allowance = initialSupply.subn(1); + + beforeEach(async function () { + await this.token.approve(spender, allowance, { from: tokenOwner }); + }); + + describe('when the token owner has enough balance', function () { + const amount = initialSupply; + + it('reverts', async function () { + await expectRevert( + this.token.transferFrom(tokenOwner, to, amount, { from: spender }), + `${errorPrefix}: insufficient allowance`, + ); + }); + }); + + describe('when the token owner does not have enough balance', function () { + const amount = allowance; + + beforeEach('reducing balance', async function () { + await this.token.transfer(to, 2, { from: tokenOwner }); + }); + + it('reverts', async function () { + await expectRevert( + this.token.transferFrom(tokenOwner, to, amount, { from: spender }), + `${errorPrefix}: transfer amount exceeds balance`, + ); + }); + }); + }); + + describe('when the spender has unlimited allowance', function () { + beforeEach(async function () { + await this.token.approve(spender, MAX_UINT256, { from: initialHolder }); + }); + + it('does not decrease the spender allowance', async function () { + await this.token.transferFrom(tokenOwner, to, 1, { from: spender }); + + expect(await this.token.allowance(tokenOwner, spender)).to.be.bignumber.equal(MAX_UINT256); + }); + + it('does not emit an approval event', async function () { + expectEvent.notEmitted(await this.token.transferFrom(tokenOwner, to, 1, { from: spender }), 'Approval'); + }); + }); + }); + + describe('when the recipient is the zero address', function () { + const amount = initialSupply; + const to = ZERO_ADDRESS; + + beforeEach(async function () { + await this.token.approve(spender, amount, { from: tokenOwner }); + }); + + it('reverts', async function () { + await expectRevert( + this.token.transferFrom(tokenOwner, to, amount, { from: spender }), + `${errorPrefix}: transfer to the zero address`, + ); + }); + }); + }); + + describe('when the token owner is the zero address', function () { + const amount = 0; + const tokenOwner = ZERO_ADDRESS; + const to = recipient; + + it('reverts', async function () { + await expectRevert(this.token.transferFrom(tokenOwner, to, amount, { from: spender }), 'from the zero address'); + }); + }); + }); + + describe('approve', function () { + shouldBehaveLikeERC20Approve( + errorPrefix, + initialHolder, + recipient, + initialSupply, + function (owner, spender, amount) { + return this.token.approve(spender, amount, { from: owner }); + }, + ); + }); +} + +function shouldBehaveLikeERC20Transfer(errorPrefix, from, to, balance, transfer) { + describe('when the recipient is not the zero address', function () { + describe('when the sender does not have enough balance', function () { + const amount = balance.addn(1); + + it('reverts', async function () { + await expectRevert(transfer.call(this, from, to, amount), `${errorPrefix}: transfer amount exceeds balance`); + }); + }); + + describe('when the sender transfers all balance', function () { + const amount = balance; + + it('transfers the requested amount', async function () { + await transfer.call(this, from, to, amount); + + expect(await this.token.balanceOf(from)).to.be.bignumber.equal('0'); + + expect(await this.token.balanceOf(to)).to.be.bignumber.equal(amount); + }); + + it('emits a transfer event', async function () { + expectEvent(await transfer.call(this, from, to, amount), 'Transfer', { from, to, value: amount }); + }); + }); + + describe('when the sender transfers zero tokens', function () { + const amount = new BN('0'); + + it('transfers the requested amount', async function () { + await transfer.call(this, from, to, amount); + + expect(await this.token.balanceOf(from)).to.be.bignumber.equal(balance); + + expect(await this.token.balanceOf(to)).to.be.bignumber.equal('0'); + }); + + it('emits a transfer event', async function () { + expectEvent(await transfer.call(this, from, to, amount), 'Transfer', { from, to, value: amount }); + }); + }); + }); + + describe('when the recipient is the zero address', function () { + it('reverts', async function () { + await expectRevert( + transfer.call(this, from, ZERO_ADDRESS, balance), + `${errorPrefix}: transfer to the zero address`, + ); + }); + }); +} + +function shouldBehaveLikeERC20Approve(errorPrefix, owner, spender, supply, approve) { + describe('when the spender is not the zero address', function () { + describe('when the sender has enough balance', function () { + const amount = supply; + + it('emits an approval event', async function () { + expectEvent(await approve.call(this, owner, spender, amount), 'Approval', { + owner: owner, + spender: spender, + value: amount, + }); + }); + + describe('when there was no approved amount before', function () { + it('approves the requested amount', async function () { + await approve.call(this, owner, spender, amount); + + expect(await this.token.allowance(owner, spender)).to.be.bignumber.equal(amount); + }); + }); + + describe('when the spender had an approved amount', function () { + beforeEach(async function () { + await approve.call(this, owner, spender, new BN(1)); + }); + + it('approves the requested amount and replaces the previous one', async function () { + await approve.call(this, owner, spender, amount); + + expect(await this.token.allowance(owner, spender)).to.be.bignumber.equal(amount); + }); + }); + }); + + describe('when the sender does not have enough balance', function () { + const amount = supply.addn(1); + + it('emits an approval event', async function () { + expectEvent(await approve.call(this, owner, spender, amount), 'Approval', { + owner: owner, + spender: spender, + value: amount, + }); + }); + + describe('when there was no approved amount before', function () { + it('approves the requested amount', async function () { + await approve.call(this, owner, spender, amount); + + expect(await this.token.allowance(owner, spender)).to.be.bignumber.equal(amount); + }); + }); + + describe('when the spender had an approved amount', function () { + beforeEach(async function () { + await approve.call(this, owner, spender, new BN(1)); + }); + + it('approves the requested amount and replaces the previous one', async function () { + await approve.call(this, owner, spender, amount); + + expect(await this.token.allowance(owner, spender)).to.be.bignumber.equal(amount); + }); + }); + }); + }); + + describe('when the spender is the zero address', function () { + it('reverts', async function () { + await expectRevert( + approve.call(this, owner, ZERO_ADDRESS, supply), + `${errorPrefix}: approve to the zero address`, + ); + }); + }); +} + +module.exports = { + shouldBehaveLikeERC20, + shouldBehaveLikeERC20Transfer, + shouldBehaveLikeERC20Approve, +}; diff --git a/lib/openzeppelin-contracts/test/token/ERC20/ERC20.test.js b/lib/openzeppelin-contracts/test/token/ERC20/ERC20.test.js new file mode 100644 index 0000000..6971eed --- /dev/null +++ b/lib/openzeppelin-contracts/test/token/ERC20/ERC20.test.js @@ -0,0 +1,305 @@ +const { BN, constants, expectEvent, expectRevert } = require('@openzeppelin/test-helpers'); +const { expect } = require('chai'); +const { ZERO_ADDRESS } = constants; + +const { + shouldBehaveLikeERC20, + shouldBehaveLikeERC20Transfer, + shouldBehaveLikeERC20Approve, +} = require('./ERC20.behavior'); + +const ERC20 = artifacts.require('$ERC20'); +const ERC20Decimals = artifacts.require('$ERC20DecimalsMock'); + +contract('ERC20', function (accounts) { + const [initialHolder, recipient, anotherAccount] = accounts; + + const name = 'My Token'; + const symbol = 'MTKN'; + + const initialSupply = new BN(100); + + beforeEach(async function () { + this.token = await ERC20.new(name, symbol); + await this.token.$_mint(initialHolder, initialSupply); + }); + + it('has a name', async function () { + expect(await this.token.name()).to.equal(name); + }); + + it('has a symbol', async function () { + expect(await this.token.symbol()).to.equal(symbol); + }); + + it('has 18 decimals', async function () { + expect(await this.token.decimals()).to.be.bignumber.equal('18'); + }); + + describe('set decimals', function () { + const decimals = new BN(6); + + it('can set decimals during construction', async function () { + const token = await ERC20Decimals.new(name, symbol, decimals); + expect(await token.decimals()).to.be.bignumber.equal(decimals); + }); + }); + + shouldBehaveLikeERC20('ERC20', initialSupply, initialHolder, recipient, anotherAccount); + + describe('decrease allowance', function () { + describe('when the spender is not the zero address', function () { + const spender = recipient; + + function shouldDecreaseApproval(amount) { + describe('when there was no approved amount before', function () { + it('reverts', async function () { + await expectRevert( + this.token.decreaseAllowance(spender, amount, { from: initialHolder }), + 'ERC20: decreased allowance below zero', + ); + }); + }); + + describe('when the spender had an approved amount', function () { + const approvedAmount = amount; + + beforeEach(async function () { + await this.token.approve(spender, approvedAmount, { from: initialHolder }); + }); + + it('emits an approval event', async function () { + expectEvent( + await this.token.decreaseAllowance(spender, approvedAmount, { from: initialHolder }), + 'Approval', + { owner: initialHolder, spender: spender, value: new BN(0) }, + ); + }); + + it('decreases the spender allowance subtracting the requested amount', async function () { + await this.token.decreaseAllowance(spender, approvedAmount.subn(1), { from: initialHolder }); + + expect(await this.token.allowance(initialHolder, spender)).to.be.bignumber.equal('1'); + }); + + it('sets the allowance to zero when all allowance is removed', async function () { + await this.token.decreaseAllowance(spender, approvedAmount, { from: initialHolder }); + expect(await this.token.allowance(initialHolder, spender)).to.be.bignumber.equal('0'); + }); + + it('reverts when more than the full allowance is removed', async function () { + await expectRevert( + this.token.decreaseAllowance(spender, approvedAmount.addn(1), { from: initialHolder }), + 'ERC20: decreased allowance below zero', + ); + }); + }); + } + + describe('when the sender has enough balance', function () { + const amount = initialSupply; + + shouldDecreaseApproval(amount); + }); + + describe('when the sender does not have enough balance', function () { + const amount = initialSupply.addn(1); + + shouldDecreaseApproval(amount); + }); + }); + + describe('when the spender is the zero address', function () { + const amount = initialSupply; + const spender = ZERO_ADDRESS; + + it('reverts', async function () { + await expectRevert( + this.token.decreaseAllowance(spender, amount, { from: initialHolder }), + 'ERC20: decreased allowance below zero', + ); + }); + }); + }); + + describe('increase allowance', function () { + const amount = initialSupply; + + describe('when the spender is not the zero address', function () { + const spender = recipient; + + describe('when the sender has enough balance', function () { + it('emits an approval event', async function () { + expectEvent(await this.token.increaseAllowance(spender, amount, { from: initialHolder }), 'Approval', { + owner: initialHolder, + spender: spender, + value: amount, + }); + }); + + describe('when there was no approved amount before', function () { + it('approves the requested amount', async function () { + await this.token.increaseAllowance(spender, amount, { from: initialHolder }); + + expect(await this.token.allowance(initialHolder, spender)).to.be.bignumber.equal(amount); + }); + }); + + describe('when the spender had an approved amount', function () { + beforeEach(async function () { + await this.token.approve(spender, new BN(1), { from: initialHolder }); + }); + + it('increases the spender allowance adding the requested amount', async function () { + await this.token.increaseAllowance(spender, amount, { from: initialHolder }); + + expect(await this.token.allowance(initialHolder, spender)).to.be.bignumber.equal(amount.addn(1)); + }); + }); + }); + + describe('when the sender does not have enough balance', function () { + const amount = initialSupply.addn(1); + + it('emits an approval event', async function () { + expectEvent(await this.token.increaseAllowance(spender, amount, { from: initialHolder }), 'Approval', { + owner: initialHolder, + spender: spender, + value: amount, + }); + }); + + describe('when there was no approved amount before', function () { + it('approves the requested amount', async function () { + await this.token.increaseAllowance(spender, amount, { from: initialHolder }); + + expect(await this.token.allowance(initialHolder, spender)).to.be.bignumber.equal(amount); + }); + }); + + describe('when the spender had an approved amount', function () { + beforeEach(async function () { + await this.token.approve(spender, new BN(1), { from: initialHolder }); + }); + + it('increases the spender allowance adding the requested amount', async function () { + await this.token.increaseAllowance(spender, amount, { from: initialHolder }); + + expect(await this.token.allowance(initialHolder, spender)).to.be.bignumber.equal(amount.addn(1)); + }); + }); + }); + }); + + describe('when the spender is the zero address', function () { + const spender = ZERO_ADDRESS; + + it('reverts', async function () { + await expectRevert( + this.token.increaseAllowance(spender, amount, { from: initialHolder }), + 'ERC20: approve to the zero address', + ); + }); + }); + }); + + describe('_mint', function () { + const amount = new BN(50); + it('rejects a null account', async function () { + await expectRevert(this.token.$_mint(ZERO_ADDRESS, amount), 'ERC20: mint to the zero address'); + }); + + describe('for a non zero account', function () { + beforeEach('minting', async function () { + this.receipt = await this.token.$_mint(recipient, amount); + }); + + it('increments totalSupply', async function () { + const expectedSupply = initialSupply.add(amount); + expect(await this.token.totalSupply()).to.be.bignumber.equal(expectedSupply); + }); + + it('increments recipient balance', async function () { + expect(await this.token.balanceOf(recipient)).to.be.bignumber.equal(amount); + }); + + it('emits Transfer event', async function () { + const event = expectEvent(this.receipt, 'Transfer', { from: ZERO_ADDRESS, to: recipient }); + + expect(event.args.value).to.be.bignumber.equal(amount); + }); + }); + }); + + describe('_burn', function () { + it('rejects a null account', async function () { + await expectRevert(this.token.$_burn(ZERO_ADDRESS, new BN(1)), 'ERC20: burn from the zero address'); + }); + + describe('for a non zero account', function () { + it('rejects burning more than balance', async function () { + await expectRevert( + this.token.$_burn(initialHolder, initialSupply.addn(1)), + 'ERC20: burn amount exceeds balance', + ); + }); + + const describeBurn = function (description, amount) { + describe(description, function () { + beforeEach('burning', async function () { + this.receipt = await this.token.$_burn(initialHolder, amount); + }); + + it('decrements totalSupply', async function () { + const expectedSupply = initialSupply.sub(amount); + expect(await this.token.totalSupply()).to.be.bignumber.equal(expectedSupply); + }); + + it('decrements initialHolder balance', async function () { + const expectedBalance = initialSupply.sub(amount); + expect(await this.token.balanceOf(initialHolder)).to.be.bignumber.equal(expectedBalance); + }); + + it('emits Transfer event', async function () { + const event = expectEvent(this.receipt, 'Transfer', { from: initialHolder, to: ZERO_ADDRESS }); + + expect(event.args.value).to.be.bignumber.equal(amount); + }); + }); + }; + + describeBurn('for entire balance', initialSupply); + describeBurn('for less amount than balance', initialSupply.subn(1)); + }); + }); + + describe('_transfer', function () { + shouldBehaveLikeERC20Transfer('ERC20', initialHolder, recipient, initialSupply, function (from, to, amount) { + return this.token.$_transfer(from, to, amount); + }); + + describe('when the sender is the zero address', function () { + it('reverts', async function () { + await expectRevert( + this.token.$_transfer(ZERO_ADDRESS, recipient, initialSupply), + 'ERC20: transfer from the zero address', + ); + }); + }); + }); + + describe('_approve', function () { + shouldBehaveLikeERC20Approve('ERC20', initialHolder, recipient, initialSupply, function (owner, spender, amount) { + return this.token.$_approve(owner, spender, amount); + }); + + describe('when the owner is the zero address', function () { + it('reverts', async function () { + await expectRevert( + this.token.$_approve(ZERO_ADDRESS, recipient, initialSupply), + 'ERC20: approve from the zero address', + ); + }); + }); + }); +}); diff --git a/lib/openzeppelin-contracts/test/token/ERC20/extensions/ERC20Burnable.behavior.js b/lib/openzeppelin-contracts/test/token/ERC20/extensions/ERC20Burnable.behavior.js new file mode 100644 index 0000000..2edabc4 --- /dev/null +++ b/lib/openzeppelin-contracts/test/token/ERC20/extensions/ERC20Burnable.behavior.js @@ -0,0 +1,106 @@ +const { BN, constants, expectEvent, expectRevert } = require('@openzeppelin/test-helpers'); +const { ZERO_ADDRESS } = constants; + +const { expect } = require('chai'); + +function shouldBehaveLikeERC20Burnable(owner, initialBalance, [burner]) { + describe('burn', function () { + describe('when the given amount is not greater than balance of the sender', function () { + context('for a zero amount', function () { + shouldBurn(new BN(0)); + }); + + context('for a non-zero amount', function () { + shouldBurn(new BN(100)); + }); + + function shouldBurn(amount) { + beforeEach(async function () { + this.receipt = await this.token.burn(amount, { from: owner }); + }); + + it('burns the requested amount', async function () { + expect(await this.token.balanceOf(owner)).to.be.bignumber.equal(initialBalance.sub(amount)); + }); + + it('emits a transfer event', async function () { + expectEvent(this.receipt, 'Transfer', { + from: owner, + to: ZERO_ADDRESS, + value: amount, + }); + }); + } + }); + + describe('when the given amount is greater than the balance of the sender', function () { + const amount = initialBalance.addn(1); + + it('reverts', async function () { + await expectRevert(this.token.burn(amount, { from: owner }), 'ERC20: burn amount exceeds balance'); + }); + }); + }); + + describe('burnFrom', function () { + describe('on success', function () { + context('for a zero amount', function () { + shouldBurnFrom(new BN(0)); + }); + + context('for a non-zero amount', function () { + shouldBurnFrom(new BN(100)); + }); + + function shouldBurnFrom(amount) { + const originalAllowance = amount.muln(3); + + beforeEach(async function () { + await this.token.approve(burner, originalAllowance, { from: owner }); + this.receipt = await this.token.burnFrom(owner, amount, { from: burner }); + }); + + it('burns the requested amount', async function () { + expect(await this.token.balanceOf(owner)).to.be.bignumber.equal(initialBalance.sub(amount)); + }); + + it('decrements allowance', async function () { + expect(await this.token.allowance(owner, burner)).to.be.bignumber.equal(originalAllowance.sub(amount)); + }); + + it('emits a transfer event', async function () { + expectEvent(this.receipt, 'Transfer', { + from: owner, + to: ZERO_ADDRESS, + value: amount, + }); + }); + } + }); + + describe('when the given amount is greater than the balance of the sender', function () { + const amount = initialBalance.addn(1); + + it('reverts', async function () { + await this.token.approve(burner, amount, { from: owner }); + await expectRevert(this.token.burnFrom(owner, amount, { from: burner }), 'ERC20: burn amount exceeds balance'); + }); + }); + + describe('when the given amount is greater than the allowance', function () { + const allowance = new BN(100); + + it('reverts', async function () { + await this.token.approve(burner, allowance, { from: owner }); + await expectRevert( + this.token.burnFrom(owner, allowance.addn(1), { from: burner }), + 'ERC20: insufficient allowance', + ); + }); + }); + }); +} + +module.exports = { + shouldBehaveLikeERC20Burnable, +}; diff --git a/lib/openzeppelin-contracts/test/token/ERC20/extensions/ERC20Burnable.test.js b/lib/openzeppelin-contracts/test/token/ERC20/extensions/ERC20Burnable.test.js new file mode 100644 index 0000000..00acc81 --- /dev/null +++ b/lib/openzeppelin-contracts/test/token/ERC20/extensions/ERC20Burnable.test.js @@ -0,0 +1,20 @@ +const { BN } = require('@openzeppelin/test-helpers'); + +const { shouldBehaveLikeERC20Burnable } = require('./ERC20Burnable.behavior'); +const ERC20Burnable = artifacts.require('$ERC20Burnable'); + +contract('ERC20Burnable', function (accounts) { + const [owner, ...otherAccounts] = accounts; + + const initialBalance = new BN(1000); + + const name = 'My Token'; + const symbol = 'MTKN'; + + beforeEach(async function () { + this.token = await ERC20Burnable.new(name, symbol, { from: owner }); + await this.token.$_mint(owner, initialBalance); + }); + + shouldBehaveLikeERC20Burnable(owner, initialBalance, otherAccounts); +}); diff --git a/lib/openzeppelin-contracts/test/token/ERC20/extensions/ERC20Capped.behavior.js b/lib/openzeppelin-contracts/test/token/ERC20/extensions/ERC20Capped.behavior.js new file mode 100644 index 0000000..97bad1d --- /dev/null +++ b/lib/openzeppelin-contracts/test/token/ERC20/extensions/ERC20Capped.behavior.js @@ -0,0 +1,32 @@ +const { expectRevert } = require('@openzeppelin/test-helpers'); + +const { expect } = require('chai'); + +function shouldBehaveLikeERC20Capped(accounts, cap) { + describe('capped token', function () { + const user = accounts[0]; + + it('starts with the correct cap', async function () { + expect(await this.token.cap()).to.be.bignumber.equal(cap); + }); + + it('mints when amount is less than cap', async function () { + await this.token.$_mint(user, cap.subn(1)); + expect(await this.token.totalSupply()).to.be.bignumber.equal(cap.subn(1)); + }); + + it('fails to mint if the amount exceeds the cap', async function () { + await this.token.$_mint(user, cap.subn(1)); + await expectRevert(this.token.$_mint(user, 2), 'ERC20Capped: cap exceeded'); + }); + + it('fails to mint after cap is reached', async function () { + await this.token.$_mint(user, cap); + await expectRevert(this.token.$_mint(user, 1), 'ERC20Capped: cap exceeded'); + }); + }); +} + +module.exports = { + shouldBehaveLikeERC20Capped, +}; diff --git a/lib/openzeppelin-contracts/test/token/ERC20/extensions/ERC20Capped.test.js b/lib/openzeppelin-contracts/test/token/ERC20/extensions/ERC20Capped.test.js new file mode 100644 index 0000000..a86d38c --- /dev/null +++ b/lib/openzeppelin-contracts/test/token/ERC20/extensions/ERC20Capped.test.js @@ -0,0 +1,23 @@ +const { ether, expectRevert } = require('@openzeppelin/test-helpers'); +const { shouldBehaveLikeERC20Capped } = require('./ERC20Capped.behavior'); + +const ERC20Capped = artifacts.require('$ERC20Capped'); + +contract('ERC20Capped', function (accounts) { + const cap = ether('1000'); + + const name = 'My Token'; + const symbol = 'MTKN'; + + it('requires a non-zero cap', async function () { + await expectRevert(ERC20Capped.new(name, symbol, 0), 'ERC20Capped: cap is 0'); + }); + + context('once deployed', async function () { + beforeEach(async function () { + this.token = await ERC20Capped.new(name, symbol, cap); + }); + + shouldBehaveLikeERC20Capped(accounts, cap); + }); +}); diff --git a/lib/openzeppelin-contracts/test/token/ERC20/extensions/ERC20FlashMint.test.js b/lib/openzeppelin-contracts/test/token/ERC20/extensions/ERC20FlashMint.test.js new file mode 100644 index 0000000..76d66ff --- /dev/null +++ b/lib/openzeppelin-contracts/test/token/ERC20/extensions/ERC20FlashMint.test.js @@ -0,0 +1,204 @@ +/* eslint-disable */ + +const { BN, constants, expectEvent, expectRevert } = require('@openzeppelin/test-helpers'); +const { expect } = require('chai'); +const { MAX_UINT256, ZERO_ADDRESS } = constants; + +const ERC20FlashMintMock = artifacts.require('$ERC20FlashMintMock'); +const ERC3156FlashBorrowerMock = artifacts.require('ERC3156FlashBorrowerMock'); + +contract('ERC20FlashMint', function (accounts) { + const [initialHolder, other, anotherAccount] = accounts; + + const name = 'My Token'; + const symbol = 'MTKN'; + + const initialSupply = new BN(100); + const loanAmount = new BN(10000000000000); + + beforeEach(async function () { + this.token = await ERC20FlashMintMock.new(name, symbol); + await this.token.$_mint(initialHolder, initialSupply); + }); + + describe('maxFlashLoan', function () { + it('token match', async function () { + expect(await this.token.maxFlashLoan(this.token.address)).to.be.bignumber.equal(MAX_UINT256.sub(initialSupply)); + }); + + it('token mismatch', async function () { + expect(await this.token.maxFlashLoan(ZERO_ADDRESS)).to.be.bignumber.equal('0'); + }); + }); + + describe('flashFee', function () { + it('token match', async function () { + expect(await this.token.flashFee(this.token.address, loanAmount)).to.be.bignumber.equal('0'); + }); + + it('token mismatch', async function () { + await expectRevert(this.token.flashFee(ZERO_ADDRESS, loanAmount), 'ERC20FlashMint: wrong token'); + }); + }); + + describe('flashFeeReceiver', function () { + it('default receiver', async function () { + expect(await this.token.$_flashFeeReceiver()).to.be.eq(ZERO_ADDRESS); + }); + }); + + describe('flashLoan', function () { + it('success', async function () { + const receiver = await ERC3156FlashBorrowerMock.new(true, true); + const { tx } = await this.token.flashLoan(receiver.address, this.token.address, loanAmount, '0x'); + + await expectEvent.inTransaction(tx, this.token, 'Transfer', { + from: ZERO_ADDRESS, + to: receiver.address, + value: loanAmount, + }); + await expectEvent.inTransaction(tx, this.token, 'Transfer', { + from: receiver.address, + to: ZERO_ADDRESS, + value: loanAmount, + }); + await expectEvent.inTransaction(tx, receiver, 'BalanceOf', { + token: this.token.address, + account: receiver.address, + value: loanAmount, + }); + await expectEvent.inTransaction(tx, receiver, 'TotalSupply', { + token: this.token.address, + value: initialSupply.add(loanAmount), + }); + + expect(await this.token.totalSupply()).to.be.bignumber.equal(initialSupply); + expect(await this.token.balanceOf(receiver.address)).to.be.bignumber.equal('0'); + expect(await this.token.allowance(receiver.address, this.token.address)).to.be.bignumber.equal('0'); + }); + + it('missing return value', async function () { + const receiver = await ERC3156FlashBorrowerMock.new(false, true); + await expectRevert( + this.token.flashLoan(receiver.address, this.token.address, loanAmount, '0x'), + 'ERC20FlashMint: invalid return value', + ); + }); + + it('missing approval', async function () { + const receiver = await ERC3156FlashBorrowerMock.new(true, false); + await expectRevert( + this.token.flashLoan(receiver.address, this.token.address, loanAmount, '0x'), + 'ERC20: insufficient allowance', + ); + }); + + it('unavailable funds', async function () { + const receiver = await ERC3156FlashBorrowerMock.new(true, true); + const data = this.token.contract.methods.transfer(other, 10).encodeABI(); + await expectRevert( + this.token.flashLoan(receiver.address, this.token.address, loanAmount, data), + 'ERC20: burn amount exceeds balance', + ); + }); + + it('more than maxFlashLoan', async function () { + const receiver = await ERC3156FlashBorrowerMock.new(true, true); + const data = this.token.contract.methods.transfer(other, 10).encodeABI(); + // _mint overflow reverts using a panic code. No reason string. + await expectRevert.unspecified(this.token.flashLoan(receiver.address, this.token.address, MAX_UINT256, data)); + }); + + describe('custom flash fee & custom fee receiver', function () { + const receiverInitialBalance = new BN(200000); + const flashFee = new BN(5000); + + beforeEach('init receiver balance & set flash fee', async function () { + this.receiver = await ERC3156FlashBorrowerMock.new(true, true); + const receipt = await this.token.$_mint(this.receiver.address, receiverInitialBalance); + await expectEvent(receipt, 'Transfer', { + from: ZERO_ADDRESS, + to: this.receiver.address, + value: receiverInitialBalance, + }); + expect(await this.token.balanceOf(this.receiver.address)).to.be.bignumber.equal(receiverInitialBalance); + + await this.token.setFlashFee(flashFee); + expect(await this.token.flashFee(this.token.address, loanAmount)).to.be.bignumber.equal(flashFee); + }); + + it('default flash fee receiver', async function () { + const { tx } = await this.token.flashLoan(this.receiver.address, this.token.address, loanAmount, '0x'); + await expectEvent.inTransaction(tx, this.token, 'Transfer', { + from: ZERO_ADDRESS, + to: this.receiver.address, + value: loanAmount, + }); + await expectEvent.inTransaction(tx, this.token, 'Transfer', { + from: this.receiver.address, + to: ZERO_ADDRESS, + value: loanAmount.add(flashFee), + }); + await expectEvent.inTransaction(tx, this.receiver, 'BalanceOf', { + token: this.token.address, + account: this.receiver.address, + value: receiverInitialBalance.add(loanAmount), + }); + await expectEvent.inTransaction(tx, this.receiver, 'TotalSupply', { + token: this.token.address, + value: initialSupply.add(receiverInitialBalance).add(loanAmount), + }); + + expect(await this.token.totalSupply()).to.be.bignumber.equal( + initialSupply.add(receiverInitialBalance).sub(flashFee), + ); + expect(await this.token.balanceOf(this.receiver.address)).to.be.bignumber.equal( + receiverInitialBalance.sub(flashFee), + ); + expect(await this.token.balanceOf(await this.token.$_flashFeeReceiver())).to.be.bignumber.equal('0'); + expect(await this.token.allowance(this.receiver.address, this.token.address)).to.be.bignumber.equal('0'); + }); + + it('custom flash fee receiver', async function () { + const flashFeeReceiverAddress = anotherAccount; + await this.token.setFlashFeeReceiver(flashFeeReceiverAddress); + expect(await this.token.$_flashFeeReceiver()).to.be.eq(flashFeeReceiverAddress); + + expect(await this.token.balanceOf(flashFeeReceiverAddress)).to.be.bignumber.equal('0'); + + const { tx } = await this.token.flashLoan(this.receiver.address, this.token.address, loanAmount, '0x'); + await expectEvent.inTransaction(tx, this.token, 'Transfer', { + from: ZERO_ADDRESS, + to: this.receiver.address, + value: loanAmount, + }); + await expectEvent.inTransaction(tx, this.token, 'Transfer', { + from: this.receiver.address, + to: ZERO_ADDRESS, + value: loanAmount, + }); + await expectEvent.inTransaction(tx, this.token, 'Transfer', { + from: this.receiver.address, + to: flashFeeReceiverAddress, + value: flashFee, + }); + await expectEvent.inTransaction(tx, this.receiver, 'BalanceOf', { + token: this.token.address, + account: this.receiver.address, + value: receiverInitialBalance.add(loanAmount), + }); + await expectEvent.inTransaction(tx, this.receiver, 'TotalSupply', { + token: this.token.address, + value: initialSupply.add(receiverInitialBalance).add(loanAmount), + }); + + expect(await this.token.totalSupply()).to.be.bignumber.equal(initialSupply.add(receiverInitialBalance)); + expect(await this.token.balanceOf(this.receiver.address)).to.be.bignumber.equal( + receiverInitialBalance.sub(flashFee), + ); + expect(await this.token.balanceOf(flashFeeReceiverAddress)).to.be.bignumber.equal(flashFee); + expect(await this.token.allowance(this.receiver.address, flashFeeReceiverAddress)).to.be.bignumber.equal('0'); + }); + }); + }); +}); diff --git a/lib/openzeppelin-contracts/test/token/ERC20/extensions/ERC20Pausable.test.js b/lib/openzeppelin-contracts/test/token/ERC20/extensions/ERC20Pausable.test.js new file mode 100644 index 0000000..ead442b --- /dev/null +++ b/lib/openzeppelin-contracts/test/token/ERC20/extensions/ERC20Pausable.test.js @@ -0,0 +1,133 @@ +const { BN, expectRevert } = require('@openzeppelin/test-helpers'); + +const { expect } = require('chai'); + +const ERC20Pausable = artifacts.require('$ERC20Pausable'); + +contract('ERC20Pausable', function (accounts) { + const [holder, recipient, anotherAccount] = accounts; + + const initialSupply = new BN(100); + + const name = 'My Token'; + const symbol = 'MTKN'; + + beforeEach(async function () { + this.token = await ERC20Pausable.new(name, symbol); + await this.token.$_mint(holder, initialSupply); + }); + + describe('pausable token', function () { + describe('transfer', function () { + it('allows to transfer when unpaused', async function () { + await this.token.transfer(recipient, initialSupply, { from: holder }); + + expect(await this.token.balanceOf(holder)).to.be.bignumber.equal('0'); + expect(await this.token.balanceOf(recipient)).to.be.bignumber.equal(initialSupply); + }); + + it('allows to transfer when paused and then unpaused', async function () { + await this.token.$_pause(); + await this.token.$_unpause(); + + await this.token.transfer(recipient, initialSupply, { from: holder }); + + expect(await this.token.balanceOf(holder)).to.be.bignumber.equal('0'); + expect(await this.token.balanceOf(recipient)).to.be.bignumber.equal(initialSupply); + }); + + it('reverts when trying to transfer when paused', async function () { + await this.token.$_pause(); + + await expectRevert( + this.token.transfer(recipient, initialSupply, { from: holder }), + 'ERC20Pausable: token transfer while paused', + ); + }); + }); + + describe('transfer from', function () { + const allowance = new BN(40); + + beforeEach(async function () { + await this.token.approve(anotherAccount, allowance, { from: holder }); + }); + + it('allows to transfer from when unpaused', async function () { + await this.token.transferFrom(holder, recipient, allowance, { from: anotherAccount }); + + expect(await this.token.balanceOf(recipient)).to.be.bignumber.equal(allowance); + expect(await this.token.balanceOf(holder)).to.be.bignumber.equal(initialSupply.sub(allowance)); + }); + + it('allows to transfer when paused and then unpaused', async function () { + await this.token.$_pause(); + await this.token.$_unpause(); + + await this.token.transferFrom(holder, recipient, allowance, { from: anotherAccount }); + + expect(await this.token.balanceOf(recipient)).to.be.bignumber.equal(allowance); + expect(await this.token.balanceOf(holder)).to.be.bignumber.equal(initialSupply.sub(allowance)); + }); + + it('reverts when trying to transfer from when paused', async function () { + await this.token.$_pause(); + + await expectRevert( + this.token.transferFrom(holder, recipient, allowance, { from: anotherAccount }), + 'ERC20Pausable: token transfer while paused', + ); + }); + }); + + describe('mint', function () { + const amount = new BN('42'); + + it('allows to mint when unpaused', async function () { + await this.token.$_mint(recipient, amount); + + expect(await this.token.balanceOf(recipient)).to.be.bignumber.equal(amount); + }); + + it('allows to mint when paused and then unpaused', async function () { + await this.token.$_pause(); + await this.token.$_unpause(); + + await this.token.$_mint(recipient, amount); + + expect(await this.token.balanceOf(recipient)).to.be.bignumber.equal(amount); + }); + + it('reverts when trying to mint when paused', async function () { + await this.token.$_pause(); + + await expectRevert(this.token.$_mint(recipient, amount), 'ERC20Pausable: token transfer while paused'); + }); + }); + + describe('burn', function () { + const amount = new BN('42'); + + it('allows to burn when unpaused', async function () { + await this.token.$_burn(holder, amount); + + expect(await this.token.balanceOf(holder)).to.be.bignumber.equal(initialSupply.sub(amount)); + }); + + it('allows to burn when paused and then unpaused', async function () { + await this.token.$_pause(); + await this.token.$_unpause(); + + await this.token.$_burn(holder, amount); + + expect(await this.token.balanceOf(holder)).to.be.bignumber.equal(initialSupply.sub(amount)); + }); + + it('reverts when trying to burn when paused', async function () { + await this.token.$_pause(); + + await expectRevert(this.token.$_burn(holder, amount), 'ERC20Pausable: token transfer while paused'); + }); + }); + }); +}); diff --git a/lib/openzeppelin-contracts/test/token/ERC20/extensions/ERC20Snapshot.test.js b/lib/openzeppelin-contracts/test/token/ERC20/extensions/ERC20Snapshot.test.js new file mode 100644 index 0000000..fb0bb31 --- /dev/null +++ b/lib/openzeppelin-contracts/test/token/ERC20/extensions/ERC20Snapshot.test.js @@ -0,0 +1,207 @@ +const { BN, expectEvent, expectRevert } = require('@openzeppelin/test-helpers'); +const ERC20Snapshot = artifacts.require('$ERC20Snapshot'); + +const { expect } = require('chai'); + +contract('ERC20Snapshot', function (accounts) { + const [initialHolder, recipient, other] = accounts; + + const initialSupply = new BN(100); + + const name = 'My Token'; + const symbol = 'MTKN'; + + beforeEach(async function () { + this.token = await ERC20Snapshot.new(name, symbol); + await this.token.$_mint(initialHolder, initialSupply); + }); + + describe('snapshot', function () { + it('emits a snapshot event', async function () { + const receipt = await this.token.$_snapshot(); + expectEvent(receipt, 'Snapshot'); + }); + + it('creates increasing snapshots ids, starting from 1', async function () { + for (const id of ['1', '2', '3', '4', '5']) { + const receipt = await this.token.$_snapshot(); + expectEvent(receipt, 'Snapshot', { id }); + } + }); + }); + + describe('totalSupplyAt', function () { + it('reverts with a snapshot id of 0', async function () { + await expectRevert(this.token.totalSupplyAt(0), 'ERC20Snapshot: id is 0'); + }); + + it('reverts with a not-yet-created snapshot id', async function () { + await expectRevert(this.token.totalSupplyAt(1), 'ERC20Snapshot: nonexistent id'); + }); + + context('with initial snapshot', function () { + beforeEach(async function () { + this.initialSnapshotId = new BN('1'); + + const receipt = await this.token.$_snapshot(); + expectEvent(receipt, 'Snapshot', { id: this.initialSnapshotId }); + }); + + context('with no supply changes after the snapshot', function () { + it('returns the current total supply', async function () { + expect(await this.token.totalSupplyAt(this.initialSnapshotId)).to.be.bignumber.equal(initialSupply); + }); + }); + + context('with supply changes after the snapshot', function () { + beforeEach(async function () { + await this.token.$_mint(other, new BN('50')); + await this.token.$_burn(initialHolder, new BN('20')); + }); + + it('returns the total supply before the changes', async function () { + expect(await this.token.totalSupplyAt(this.initialSnapshotId)).to.be.bignumber.equal(initialSupply); + }); + + context('with a second snapshot after supply changes', function () { + beforeEach(async function () { + this.secondSnapshotId = new BN('2'); + + const receipt = await this.token.$_snapshot(); + expectEvent(receipt, 'Snapshot', { id: this.secondSnapshotId }); + }); + + it('snapshots return the supply before and after the changes', async function () { + expect(await this.token.totalSupplyAt(this.initialSnapshotId)).to.be.bignumber.equal(initialSupply); + + expect(await this.token.totalSupplyAt(this.secondSnapshotId)).to.be.bignumber.equal( + await this.token.totalSupply(), + ); + }); + }); + + context('with multiple snapshots after supply changes', function () { + beforeEach(async function () { + this.secondSnapshotIds = ['2', '3', '4']; + + for (const id of this.secondSnapshotIds) { + const receipt = await this.token.$_snapshot(); + expectEvent(receipt, 'Snapshot', { id }); + } + }); + + it('all posterior snapshots return the supply after the changes', async function () { + expect(await this.token.totalSupplyAt(this.initialSnapshotId)).to.be.bignumber.equal(initialSupply); + + const currentSupply = await this.token.totalSupply(); + + for (const id of this.secondSnapshotIds) { + expect(await this.token.totalSupplyAt(id)).to.be.bignumber.equal(currentSupply); + } + }); + }); + }); + }); + }); + + describe('balanceOfAt', function () { + it('reverts with a snapshot id of 0', async function () { + await expectRevert(this.token.balanceOfAt(other, 0), 'ERC20Snapshot: id is 0'); + }); + + it('reverts with a not-yet-created snapshot id', async function () { + await expectRevert(this.token.balanceOfAt(other, 1), 'ERC20Snapshot: nonexistent id'); + }); + + context('with initial snapshot', function () { + beforeEach(async function () { + this.initialSnapshotId = new BN('1'); + + const receipt = await this.token.$_snapshot(); + expectEvent(receipt, 'Snapshot', { id: this.initialSnapshotId }); + }); + + context('with no balance changes after the snapshot', function () { + it('returns the current balance for all accounts', async function () { + expect(await this.token.balanceOfAt(initialHolder, this.initialSnapshotId)).to.be.bignumber.equal( + initialSupply, + ); + expect(await this.token.balanceOfAt(recipient, this.initialSnapshotId)).to.be.bignumber.equal('0'); + expect(await this.token.balanceOfAt(other, this.initialSnapshotId)).to.be.bignumber.equal('0'); + }); + }); + + context('with balance changes after the snapshot', function () { + beforeEach(async function () { + await this.token.transfer(recipient, new BN('10'), { from: initialHolder }); + await this.token.$_mint(other, new BN('50')); + await this.token.$_burn(initialHolder, new BN('20')); + }); + + it('returns the balances before the changes', async function () { + expect(await this.token.balanceOfAt(initialHolder, this.initialSnapshotId)).to.be.bignumber.equal( + initialSupply, + ); + expect(await this.token.balanceOfAt(recipient, this.initialSnapshotId)).to.be.bignumber.equal('0'); + expect(await this.token.balanceOfAt(other, this.initialSnapshotId)).to.be.bignumber.equal('0'); + }); + + context('with a second snapshot after supply changes', function () { + beforeEach(async function () { + this.secondSnapshotId = new BN('2'); + + const receipt = await this.token.$_snapshot(); + expectEvent(receipt, 'Snapshot', { id: this.secondSnapshotId }); + }); + + it('snapshots return the balances before and after the changes', async function () { + expect(await this.token.balanceOfAt(initialHolder, this.initialSnapshotId)).to.be.bignumber.equal( + initialSupply, + ); + expect(await this.token.balanceOfAt(recipient, this.initialSnapshotId)).to.be.bignumber.equal('0'); + expect(await this.token.balanceOfAt(other, this.initialSnapshotId)).to.be.bignumber.equal('0'); + + expect(await this.token.balanceOfAt(initialHolder, this.secondSnapshotId)).to.be.bignumber.equal( + await this.token.balanceOf(initialHolder), + ); + expect(await this.token.balanceOfAt(recipient, this.secondSnapshotId)).to.be.bignumber.equal( + await this.token.balanceOf(recipient), + ); + expect(await this.token.balanceOfAt(other, this.secondSnapshotId)).to.be.bignumber.equal( + await this.token.balanceOf(other), + ); + }); + }); + + context('with multiple snapshots after supply changes', function () { + beforeEach(async function () { + this.secondSnapshotIds = ['2', '3', '4']; + + for (const id of this.secondSnapshotIds) { + const receipt = await this.token.$_snapshot(); + expectEvent(receipt, 'Snapshot', { id }); + } + }); + + it('all posterior snapshots return the supply after the changes', async function () { + expect(await this.token.balanceOfAt(initialHolder, this.initialSnapshotId)).to.be.bignumber.equal( + initialSupply, + ); + expect(await this.token.balanceOfAt(recipient, this.initialSnapshotId)).to.be.bignumber.equal('0'); + expect(await this.token.balanceOfAt(other, this.initialSnapshotId)).to.be.bignumber.equal('0'); + + for (const id of this.secondSnapshotIds) { + expect(await this.token.balanceOfAt(initialHolder, id)).to.be.bignumber.equal( + await this.token.balanceOf(initialHolder), + ); + expect(await this.token.balanceOfAt(recipient, id)).to.be.bignumber.equal( + await this.token.balanceOf(recipient), + ); + expect(await this.token.balanceOfAt(other, id)).to.be.bignumber.equal(await this.token.balanceOf(other)); + } + }); + }); + }); + }); + }); +}); diff --git a/lib/openzeppelin-contracts/test/token/ERC20/extensions/ERC20Votes.test.js b/lib/openzeppelin-contracts/test/token/ERC20/extensions/ERC20Votes.test.js new file mode 100644 index 0000000..a340e71 --- /dev/null +++ b/lib/openzeppelin-contracts/test/token/ERC20/extensions/ERC20Votes.test.js @@ -0,0 +1,576 @@ +/* eslint-disable */ + +const { BN, constants, expectEvent, expectRevert, time } = require('@openzeppelin/test-helpers'); +const { expect } = require('chai'); +const { MAX_UINT256, ZERO_ADDRESS } = constants; + +const { fromRpcSig } = require('ethereumjs-util'); +const ethSigUtil = require('eth-sig-util'); +const Wallet = require('ethereumjs-wallet').default; + +const ERC20Votes = artifacts.require('$ERC20Votes'); + +const { batchInBlock } = require('../../../helpers/txpool'); +const { EIP712Domain, domainSeparator } = require('../../../helpers/eip712'); +const { getChainId } = require('../../../helpers/chainid'); + +const Delegation = [ + { name: 'delegatee', type: 'address' }, + { name: 'nonce', type: 'uint256' }, + { name: 'expiry', type: 'uint256' }, +]; + +contract('ERC20Votes', function (accounts) { + const [holder, recipient, holderDelegatee, other1, other2] = accounts; + + const name = 'My Token'; + const symbol = 'MTKN'; + const version = '1'; + const supply = new BN('10000000000000000000000000'); + + beforeEach(async function () { + this.chainId = await getChainId(); + this.token = await ERC20Votes.new(name, symbol, name); + }); + + it('initial nonce is 0', async function () { + expect(await this.token.nonces(holder)).to.be.bignumber.equal('0'); + }); + + it('domain separator', async function () { + expect(await this.token.DOMAIN_SEPARATOR()).to.equal( + await domainSeparator({ name, version, chainId: this.chainId, verifyingContract: this.token.address }), + ); + }); + + it('minting restriction', async function () { + const amount = new BN('2').pow(new BN('224')); + await expectRevert(this.token.$_mint(holder, amount), 'ERC20Votes: total supply risks overflowing votes'); + }); + + it('recent checkpoints', async function () { + await this.token.delegate(holder, { from: holder }); + for (let i = 0; i < 6; i++) { + await this.token.$_mint(holder, 1); + } + const block = await web3.eth.getBlockNumber(); + expect(await this.token.numCheckpoints(holder)).to.be.bignumber.equal('6'); + // recent + expect(await this.token.getPastVotes(holder, block - 1)).to.be.bignumber.equal('5'); + // non-recent + expect(await this.token.getPastVotes(holder, block - 6)).to.be.bignumber.equal('0'); + }); + + describe('set delegation', function () { + describe('call', function () { + it('delegation with balance', async function () { + await this.token.$_mint(holder, supply); + expect(await this.token.delegates(holder)).to.be.equal(ZERO_ADDRESS); + + const { receipt } = await this.token.delegate(holder, { from: holder }); + expectEvent(receipt, 'DelegateChanged', { + delegator: holder, + fromDelegate: ZERO_ADDRESS, + toDelegate: holder, + }); + expectEvent(receipt, 'DelegateVotesChanged', { + delegate: holder, + previousBalance: '0', + newBalance: supply, + }); + + expect(await this.token.delegates(holder)).to.be.equal(holder); + + expect(await this.token.getVotes(holder)).to.be.bignumber.equal(supply); + expect(await this.token.getPastVotes(holder, receipt.blockNumber - 1)).to.be.bignumber.equal('0'); + await time.advanceBlock(); + expect(await this.token.getPastVotes(holder, receipt.blockNumber)).to.be.bignumber.equal(supply); + }); + + it('delegation without balance', async function () { + expect(await this.token.delegates(holder)).to.be.equal(ZERO_ADDRESS); + + const { receipt } = await this.token.delegate(holder, { from: holder }); + expectEvent(receipt, 'DelegateChanged', { + delegator: holder, + fromDelegate: ZERO_ADDRESS, + toDelegate: holder, + }); + expectEvent.notEmitted(receipt, 'DelegateVotesChanged'); + + expect(await this.token.delegates(holder)).to.be.equal(holder); + }); + }); + + describe('with signature', function () { + const delegator = Wallet.generate(); + const delegatorAddress = web3.utils.toChecksumAddress(delegator.getAddressString()); + const nonce = 0; + + const buildData = (chainId, verifyingContract, message) => ({ + data: { + primaryType: 'Delegation', + types: { EIP712Domain, Delegation }, + domain: { name, version, chainId, verifyingContract }, + message, + }, + }); + + beforeEach(async function () { + await this.token.$_mint(delegatorAddress, supply); + }); + + it('accept signed delegation', async function () { + const { v, r, s } = fromRpcSig( + ethSigUtil.signTypedMessage( + delegator.getPrivateKey(), + buildData(this.chainId, this.token.address, { + delegatee: delegatorAddress, + nonce, + expiry: MAX_UINT256, + }), + ), + ); + + expect(await this.token.delegates(delegatorAddress)).to.be.equal(ZERO_ADDRESS); + + const { receipt } = await this.token.delegateBySig(delegatorAddress, nonce, MAX_UINT256, v, r, s); + expectEvent(receipt, 'DelegateChanged', { + delegator: delegatorAddress, + fromDelegate: ZERO_ADDRESS, + toDelegate: delegatorAddress, + }); + expectEvent(receipt, 'DelegateVotesChanged', { + delegate: delegatorAddress, + previousBalance: '0', + newBalance: supply, + }); + + expect(await this.token.delegates(delegatorAddress)).to.be.equal(delegatorAddress); + + expect(await this.token.getVotes(delegatorAddress)).to.be.bignumber.equal(supply); + expect(await this.token.getPastVotes(delegatorAddress, receipt.blockNumber - 1)).to.be.bignumber.equal('0'); + await time.advanceBlock(); + expect(await this.token.getPastVotes(delegatorAddress, receipt.blockNumber)).to.be.bignumber.equal(supply); + }); + + it('rejects reused signature', async function () { + const { v, r, s } = fromRpcSig( + ethSigUtil.signTypedMessage( + delegator.getPrivateKey(), + buildData(this.chainId, this.token.address, { + delegatee: delegatorAddress, + nonce, + expiry: MAX_UINT256, + }), + ), + ); + + await this.token.delegateBySig(delegatorAddress, nonce, MAX_UINT256, v, r, s); + + await expectRevert( + this.token.delegateBySig(delegatorAddress, nonce, MAX_UINT256, v, r, s), + 'ERC20Votes: invalid nonce', + ); + }); + + it('rejects bad delegatee', async function () { + const { v, r, s } = fromRpcSig( + ethSigUtil.signTypedMessage( + delegator.getPrivateKey(), + buildData(this.chainId, this.token.address, { + delegatee: delegatorAddress, + nonce, + expiry: MAX_UINT256, + }), + ), + ); + + const receipt = await this.token.delegateBySig(holderDelegatee, nonce, MAX_UINT256, v, r, s); + const { args } = receipt.logs.find(({ event }) => event == 'DelegateChanged'); + expect(args.delegator).to.not.be.equal(delegatorAddress); + expect(args.fromDelegate).to.be.equal(ZERO_ADDRESS); + expect(args.toDelegate).to.be.equal(holderDelegatee); + }); + + it('rejects bad nonce', async function () { + const { v, r, s } = fromRpcSig( + ethSigUtil.signTypedMessage( + delegator.getPrivateKey(), + buildData(this.chainId, this.token.address, { + delegatee: delegatorAddress, + nonce, + expiry: MAX_UINT256, + }), + ), + ); + await expectRevert( + this.token.delegateBySig(delegatorAddress, nonce + 1, MAX_UINT256, v, r, s), + 'ERC20Votes: invalid nonce', + ); + }); + + it('rejects expired permit', async function () { + const expiry = (await time.latest()) - time.duration.weeks(1); + const { v, r, s } = fromRpcSig( + ethSigUtil.signTypedMessage( + delegator.getPrivateKey(), + buildData(this.chainId, this.token.address, { + delegatee: delegatorAddress, + nonce, + expiry, + }), + ), + ); + + await expectRevert( + this.token.delegateBySig(delegatorAddress, nonce, expiry, v, r, s), + 'ERC20Votes: signature expired', + ); + }); + }); + }); + + describe('change delegation', function () { + beforeEach(async function () { + await this.token.$_mint(holder, supply); + await this.token.delegate(holder, { from: holder }); + }); + + it('call', async function () { + expect(await this.token.delegates(holder)).to.be.equal(holder); + + const { receipt } = await this.token.delegate(holderDelegatee, { from: holder }); + expectEvent(receipt, 'DelegateChanged', { + delegator: holder, + fromDelegate: holder, + toDelegate: holderDelegatee, + }); + expectEvent(receipt, 'DelegateVotesChanged', { + delegate: holder, + previousBalance: supply, + newBalance: '0', + }); + expectEvent(receipt, 'DelegateVotesChanged', { + delegate: holderDelegatee, + previousBalance: '0', + newBalance: supply, + }); + + expect(await this.token.delegates(holder)).to.be.equal(holderDelegatee); + + expect(await this.token.getVotes(holder)).to.be.bignumber.equal('0'); + expect(await this.token.getVotes(holderDelegatee)).to.be.bignumber.equal(supply); + expect(await this.token.getPastVotes(holder, receipt.blockNumber - 1)).to.be.bignumber.equal(supply); + expect(await this.token.getPastVotes(holderDelegatee, receipt.blockNumber - 1)).to.be.bignumber.equal('0'); + await time.advanceBlock(); + expect(await this.token.getPastVotes(holder, receipt.blockNumber)).to.be.bignumber.equal('0'); + expect(await this.token.getPastVotes(holderDelegatee, receipt.blockNumber)).to.be.bignumber.equal(supply); + }); + }); + + describe('transfers', function () { + beforeEach(async function () { + await this.token.$_mint(holder, supply); + }); + + it('no delegation', async function () { + const { receipt } = await this.token.transfer(recipient, 1, { from: holder }); + expectEvent(receipt, 'Transfer', { from: holder, to: recipient, value: '1' }); + expectEvent.notEmitted(receipt, 'DelegateVotesChanged'); + + this.holderVotes = '0'; + this.recipientVotes = '0'; + }); + + it('sender delegation', async function () { + await this.token.delegate(holder, { from: holder }); + + const { receipt } = await this.token.transfer(recipient, 1, { from: holder }); + expectEvent(receipt, 'Transfer', { from: holder, to: recipient, value: '1' }); + expectEvent(receipt, 'DelegateVotesChanged', { + delegate: holder, + previousBalance: supply, + newBalance: supply.subn(1), + }); + + const { logIndex: transferLogIndex } = receipt.logs.find(({ event }) => event == 'Transfer'); + expect( + receipt.logs + .filter(({ event }) => event == 'DelegateVotesChanged') + .every(({ logIndex }) => transferLogIndex < logIndex), + ).to.be.equal(true); + + this.holderVotes = supply.subn(1); + this.recipientVotes = '0'; + }); + + it('receiver delegation', async function () { + await this.token.delegate(recipient, { from: recipient }); + + const { receipt } = await this.token.transfer(recipient, 1, { from: holder }); + expectEvent(receipt, 'Transfer', { from: holder, to: recipient, value: '1' }); + expectEvent(receipt, 'DelegateVotesChanged', { delegate: recipient, previousBalance: '0', newBalance: '1' }); + + const { logIndex: transferLogIndex } = receipt.logs.find(({ event }) => event == 'Transfer'); + expect( + receipt.logs + .filter(({ event }) => event == 'DelegateVotesChanged') + .every(({ logIndex }) => transferLogIndex < logIndex), + ).to.be.equal(true); + + this.holderVotes = '0'; + this.recipientVotes = '1'; + }); + + it('full delegation', async function () { + await this.token.delegate(holder, { from: holder }); + await this.token.delegate(recipient, { from: recipient }); + + const { receipt } = await this.token.transfer(recipient, 1, { from: holder }); + expectEvent(receipt, 'Transfer', { from: holder, to: recipient, value: '1' }); + expectEvent(receipt, 'DelegateVotesChanged', { + delegate: holder, + previousBalance: supply, + newBalance: supply.subn(1), + }); + expectEvent(receipt, 'DelegateVotesChanged', { delegate: recipient, previousBalance: '0', newBalance: '1' }); + + const { logIndex: transferLogIndex } = receipt.logs.find(({ event }) => event == 'Transfer'); + expect( + receipt.logs + .filter(({ event }) => event == 'DelegateVotesChanged') + .every(({ logIndex }) => transferLogIndex < logIndex), + ).to.be.equal(true); + + this.holderVotes = supply.subn(1); + this.recipientVotes = '1'; + }); + + afterEach(async function () { + expect(await this.token.getVotes(holder)).to.be.bignumber.equal(this.holderVotes); + expect(await this.token.getVotes(recipient)).to.be.bignumber.equal(this.recipientVotes); + + // need to advance 2 blocks to see the effect of a transfer on "getPastVotes" + const blockNumber = await time.latestBlock(); + await time.advanceBlock(); + expect(await this.token.getPastVotes(holder, blockNumber)).to.be.bignumber.equal(this.holderVotes); + expect(await this.token.getPastVotes(recipient, blockNumber)).to.be.bignumber.equal(this.recipientVotes); + }); + }); + + // The following tests are a adaptation of https://github.com/compound-finance/compound-protocol/blob/master/tests/Governance/CompTest.js. + describe('Compound test suite', function () { + beforeEach(async function () { + await this.token.$_mint(holder, supply); + }); + + describe('balanceOf', function () { + it('grants to initial account', async function () { + expect(await this.token.balanceOf(holder)).to.be.bignumber.equal('10000000000000000000000000'); + }); + }); + + describe('numCheckpoints', function () { + it('returns the number of checkpoints for a delegate', async function () { + await this.token.transfer(recipient, '100', { from: holder }); //give an account a few tokens for readability + expect(await this.token.numCheckpoints(other1)).to.be.bignumber.equal('0'); + + const t1 = await this.token.delegate(other1, { from: recipient }); + expect(await this.token.numCheckpoints(other1)).to.be.bignumber.equal('1'); + + const t2 = await this.token.transfer(other2, 10, { from: recipient }); + expect(await this.token.numCheckpoints(other1)).to.be.bignumber.equal('2'); + + const t3 = await this.token.transfer(other2, 10, { from: recipient }); + expect(await this.token.numCheckpoints(other1)).to.be.bignumber.equal('3'); + + const t4 = await this.token.transfer(recipient, 20, { from: holder }); + expect(await this.token.numCheckpoints(other1)).to.be.bignumber.equal('4'); + + expect(await this.token.checkpoints(other1, 0)).to.be.deep.equal([t1.receipt.blockNumber.toString(), '100']); + expect(await this.token.checkpoints(other1, 1)).to.be.deep.equal([t2.receipt.blockNumber.toString(), '90']); + expect(await this.token.checkpoints(other1, 2)).to.be.deep.equal([t3.receipt.blockNumber.toString(), '80']); + expect(await this.token.checkpoints(other1, 3)).to.be.deep.equal([t4.receipt.blockNumber.toString(), '100']); + + await time.advanceBlock(); + expect(await this.token.getPastVotes(other1, t1.receipt.blockNumber)).to.be.bignumber.equal('100'); + expect(await this.token.getPastVotes(other1, t2.receipt.blockNumber)).to.be.bignumber.equal('90'); + expect(await this.token.getPastVotes(other1, t3.receipt.blockNumber)).to.be.bignumber.equal('80'); + expect(await this.token.getPastVotes(other1, t4.receipt.blockNumber)).to.be.bignumber.equal('100'); + }); + + it('does not add more than one checkpoint in a block', async function () { + await this.token.transfer(recipient, '100', { from: holder }); + expect(await this.token.numCheckpoints(other1)).to.be.bignumber.equal('0'); + + const [t1, t2, t3] = await batchInBlock([ + () => this.token.delegate(other1, { from: recipient, gas: 100000 }), + () => this.token.transfer(other2, 10, { from: recipient, gas: 100000 }), + () => this.token.transfer(other2, 10, { from: recipient, gas: 100000 }), + ]); + expect(await this.token.numCheckpoints(other1)).to.be.bignumber.equal('1'); + expect(await this.token.checkpoints(other1, 0)).to.be.deep.equal([t1.receipt.blockNumber.toString(), '80']); + // expectReve(await this.token.checkpoints(other1, 1)).to.be.deep.equal([ '0', '0' ]); // Reverts due to array overflow check + // expect(await this.token.checkpoints(other1, 2)).to.be.deep.equal([ '0', '0' ]); // Reverts due to array overflow check + + const t4 = await this.token.transfer(recipient, 20, { from: holder }); + expect(await this.token.numCheckpoints(other1)).to.be.bignumber.equal('2'); + expect(await this.token.checkpoints(other1, 1)).to.be.deep.equal([t4.receipt.blockNumber.toString(), '100']); + }); + }); + + describe('getPastVotes', function () { + it('reverts if block number >= current block', async function () { + await expectRevert(this.token.getPastVotes(other1, 5e10), 'ERC20Votes: block not yet mined'); + }); + + it('returns 0 if there are no checkpoints', async function () { + expect(await this.token.getPastVotes(other1, 0)).to.be.bignumber.equal('0'); + }); + + it('returns the latest block if >= last checkpoint block', async function () { + const t1 = await this.token.delegate(other1, { from: holder }); + await time.advanceBlock(); + await time.advanceBlock(); + + expect(await this.token.getPastVotes(other1, t1.receipt.blockNumber)).to.be.bignumber.equal( + '10000000000000000000000000', + ); + expect(await this.token.getPastVotes(other1, t1.receipt.blockNumber + 1)).to.be.bignumber.equal( + '10000000000000000000000000', + ); + }); + + it('returns zero if < first checkpoint block', async function () { + await time.advanceBlock(); + const t1 = await this.token.delegate(other1, { from: holder }); + await time.advanceBlock(); + await time.advanceBlock(); + + expect(await this.token.getPastVotes(other1, t1.receipt.blockNumber - 1)).to.be.bignumber.equal('0'); + expect(await this.token.getPastVotes(other1, t1.receipt.blockNumber + 1)).to.be.bignumber.equal( + '10000000000000000000000000', + ); + }); + + it('generally returns the voting balance at the appropriate checkpoint', async function () { + const t1 = await this.token.delegate(other1, { from: holder }); + await time.advanceBlock(); + await time.advanceBlock(); + const t2 = await this.token.transfer(other2, 10, { from: holder }); + await time.advanceBlock(); + await time.advanceBlock(); + const t3 = await this.token.transfer(other2, 10, { from: holder }); + await time.advanceBlock(); + await time.advanceBlock(); + const t4 = await this.token.transfer(holder, 20, { from: other2 }); + await time.advanceBlock(); + await time.advanceBlock(); + + expect(await this.token.getPastVotes(other1, t1.receipt.blockNumber - 1)).to.be.bignumber.equal('0'); + expect(await this.token.getPastVotes(other1, t1.receipt.blockNumber)).to.be.bignumber.equal( + '10000000000000000000000000', + ); + expect(await this.token.getPastVotes(other1, t1.receipt.blockNumber + 1)).to.be.bignumber.equal( + '10000000000000000000000000', + ); + expect(await this.token.getPastVotes(other1, t2.receipt.blockNumber)).to.be.bignumber.equal( + '9999999999999999999999990', + ); + expect(await this.token.getPastVotes(other1, t2.receipt.blockNumber + 1)).to.be.bignumber.equal( + '9999999999999999999999990', + ); + expect(await this.token.getPastVotes(other1, t3.receipt.blockNumber)).to.be.bignumber.equal( + '9999999999999999999999980', + ); + expect(await this.token.getPastVotes(other1, t3.receipt.blockNumber + 1)).to.be.bignumber.equal( + '9999999999999999999999980', + ); + expect(await this.token.getPastVotes(other1, t4.receipt.blockNumber)).to.be.bignumber.equal( + '10000000000000000000000000', + ); + expect(await this.token.getPastVotes(other1, t4.receipt.blockNumber + 1)).to.be.bignumber.equal( + '10000000000000000000000000', + ); + }); + }); + }); + + describe('getPastTotalSupply', function () { + beforeEach(async function () { + await this.token.delegate(holder, { from: holder }); + }); + + it('reverts if block number >= current block', async function () { + await expectRevert(this.token.getPastTotalSupply(5e10), 'ERC20Votes: block not yet mined'); + }); + + it('returns 0 if there are no checkpoints', async function () { + expect(await this.token.getPastTotalSupply(0)).to.be.bignumber.equal('0'); + }); + + it('returns the latest block if >= last checkpoint block', async function () { + t1 = await this.token.$_mint(holder, supply); + + await time.advanceBlock(); + await time.advanceBlock(); + + expect(await this.token.getPastTotalSupply(t1.receipt.blockNumber)).to.be.bignumber.equal(supply); + expect(await this.token.getPastTotalSupply(t1.receipt.blockNumber + 1)).to.be.bignumber.equal(supply); + }); + + it('returns zero if < first checkpoint block', async function () { + await time.advanceBlock(); + const t1 = await this.token.$_mint(holder, supply); + await time.advanceBlock(); + await time.advanceBlock(); + + expect(await this.token.getPastTotalSupply(t1.receipt.blockNumber - 1)).to.be.bignumber.equal('0'); + expect(await this.token.getPastTotalSupply(t1.receipt.blockNumber + 1)).to.be.bignumber.equal( + '10000000000000000000000000', + ); + }); + + it('generally returns the voting balance at the appropriate checkpoint', async function () { + const t1 = await this.token.$_mint(holder, supply); + await time.advanceBlock(); + await time.advanceBlock(); + const t2 = await this.token.$_burn(holder, 10); + await time.advanceBlock(); + await time.advanceBlock(); + const t3 = await this.token.$_burn(holder, 10); + await time.advanceBlock(); + await time.advanceBlock(); + const t4 = await this.token.$_mint(holder, 20); + await time.advanceBlock(); + await time.advanceBlock(); + + expect(await this.token.getPastTotalSupply(t1.receipt.blockNumber - 1)).to.be.bignumber.equal('0'); + expect(await this.token.getPastTotalSupply(t1.receipt.blockNumber)).to.be.bignumber.equal( + '10000000000000000000000000', + ); + expect(await this.token.getPastTotalSupply(t1.receipt.blockNumber + 1)).to.be.bignumber.equal( + '10000000000000000000000000', + ); + expect(await this.token.getPastTotalSupply(t2.receipt.blockNumber)).to.be.bignumber.equal( + '9999999999999999999999990', + ); + expect(await this.token.getPastTotalSupply(t2.receipt.blockNumber + 1)).to.be.bignumber.equal( + '9999999999999999999999990', + ); + expect(await this.token.getPastTotalSupply(t3.receipt.blockNumber)).to.be.bignumber.equal( + '9999999999999999999999980', + ); + expect(await this.token.getPastTotalSupply(t3.receipt.blockNumber + 1)).to.be.bignumber.equal( + '9999999999999999999999980', + ); + expect(await this.token.getPastTotalSupply(t4.receipt.blockNumber)).to.be.bignumber.equal( + '10000000000000000000000000', + ); + expect(await this.token.getPastTotalSupply(t4.receipt.blockNumber + 1)).to.be.bignumber.equal( + '10000000000000000000000000', + ); + }); + }); +}); diff --git a/lib/openzeppelin-contracts/test/token/ERC20/extensions/ERC20VotesComp.test.js b/lib/openzeppelin-contracts/test/token/ERC20/extensions/ERC20VotesComp.test.js new file mode 100644 index 0000000..6a7c000 --- /dev/null +++ b/lib/openzeppelin-contracts/test/token/ERC20/extensions/ERC20VotesComp.test.js @@ -0,0 +1,542 @@ +/* eslint-disable */ + +const { BN, constants, expectEvent, expectRevert, time } = require('@openzeppelin/test-helpers'); +const { expect } = require('chai'); +const { MAX_UINT256, ZERO_ADDRESS } = constants; + +const { fromRpcSig } = require('ethereumjs-util'); +const ethSigUtil = require('eth-sig-util'); +const Wallet = require('ethereumjs-wallet').default; + +const ERC20VotesComp = artifacts.require('$ERC20VotesComp'); + +const { batchInBlock } = require('../../../helpers/txpool'); +const { EIP712Domain, domainSeparator } = require('../../../helpers/eip712'); +const { getChainId } = require('../../../helpers/chainid'); + +const Delegation = [ + { name: 'delegatee', type: 'address' }, + { name: 'nonce', type: 'uint256' }, + { name: 'expiry', type: 'uint256' }, +]; + +contract('ERC20VotesComp', function (accounts) { + const [holder, recipient, holderDelegatee, other1, other2] = accounts; + + const name = 'My Token'; + const symbol = 'MTKN'; + const version = '1'; + const supply = new BN('10000000000000000000000000'); + + beforeEach(async function () { + this.chainId = await getChainId(); + this.token = await ERC20VotesComp.new(name, symbol, name); + }); + + it('initial nonce is 0', async function () { + expect(await this.token.nonces(holder)).to.be.bignumber.equal('0'); + }); + + it('domain separator', async function () { + expect(await this.token.DOMAIN_SEPARATOR()).to.equal( + await domainSeparator({ name, version, chainId: this.chainId, verifyingContract: this.token.address }), + ); + }); + + it('minting restriction', async function () { + const amount = new BN('2').pow(new BN('96')); + await expectRevert(this.token.$_mint(holder, amount), 'ERC20Votes: total supply risks overflowing votes'); + }); + + describe('set delegation', function () { + describe('call', function () { + it('delegation with balance', async function () { + await this.token.$_mint(holder, supply); + expect(await this.token.delegates(holder)).to.be.equal(ZERO_ADDRESS); + + const { receipt } = await this.token.delegate(holder, { from: holder }); + expectEvent(receipt, 'DelegateChanged', { + delegator: holder, + fromDelegate: ZERO_ADDRESS, + toDelegate: holder, + }); + expectEvent(receipt, 'DelegateVotesChanged', { + delegate: holder, + previousBalance: '0', + newBalance: supply, + }); + + expect(await this.token.delegates(holder)).to.be.equal(holder); + + expect(await this.token.getCurrentVotes(holder)).to.be.bignumber.equal(supply); + expect(await this.token.getPriorVotes(holder, receipt.blockNumber - 1)).to.be.bignumber.equal('0'); + await time.advanceBlock(); + expect(await this.token.getPriorVotes(holder, receipt.blockNumber)).to.be.bignumber.equal(supply); + }); + + it('delegation without balance', async function () { + expect(await this.token.delegates(holder)).to.be.equal(ZERO_ADDRESS); + + const { receipt } = await this.token.delegate(holder, { from: holder }); + expectEvent(receipt, 'DelegateChanged', { + delegator: holder, + fromDelegate: ZERO_ADDRESS, + toDelegate: holder, + }); + expectEvent.notEmitted(receipt, 'DelegateVotesChanged'); + + expect(await this.token.delegates(holder)).to.be.equal(holder); + }); + }); + + describe('with signature', function () { + const delegator = Wallet.generate(); + const delegatorAddress = web3.utils.toChecksumAddress(delegator.getAddressString()); + const nonce = 0; + + const buildData = (chainId, verifyingContract, message) => ({ + data: { + primaryType: 'Delegation', + types: { EIP712Domain, Delegation }, + domain: { name, version, chainId, verifyingContract }, + message, + }, + }); + + beforeEach(async function () { + await this.token.$_mint(delegatorAddress, supply); + }); + + it('accept signed delegation', async function () { + const { v, r, s } = fromRpcSig( + ethSigUtil.signTypedMessage( + delegator.getPrivateKey(), + buildData(this.chainId, this.token.address, { + delegatee: delegatorAddress, + nonce, + expiry: MAX_UINT256, + }), + ), + ); + + expect(await this.token.delegates(delegatorAddress)).to.be.equal(ZERO_ADDRESS); + + const { receipt } = await this.token.delegateBySig(delegatorAddress, nonce, MAX_UINT256, v, r, s); + expectEvent(receipt, 'DelegateChanged', { + delegator: delegatorAddress, + fromDelegate: ZERO_ADDRESS, + toDelegate: delegatorAddress, + }); + expectEvent(receipt, 'DelegateVotesChanged', { + delegate: delegatorAddress, + previousBalance: '0', + newBalance: supply, + }); + + expect(await this.token.delegates(delegatorAddress)).to.be.equal(delegatorAddress); + + expect(await this.token.getCurrentVotes(delegatorAddress)).to.be.bignumber.equal(supply); + expect(await this.token.getPriorVotes(delegatorAddress, receipt.blockNumber - 1)).to.be.bignumber.equal('0'); + await time.advanceBlock(); + expect(await this.token.getPriorVotes(delegatorAddress, receipt.blockNumber)).to.be.bignumber.equal(supply); + }); + + it('rejects reused signature', async function () { + const { v, r, s } = fromRpcSig( + ethSigUtil.signTypedMessage( + delegator.getPrivateKey(), + buildData(this.chainId, this.token.address, { + delegatee: delegatorAddress, + nonce, + expiry: MAX_UINT256, + }), + ), + ); + + await this.token.delegateBySig(delegatorAddress, nonce, MAX_UINT256, v, r, s); + + await expectRevert( + this.token.delegateBySig(delegatorAddress, nonce, MAX_UINT256, v, r, s), + 'ERC20Votes: invalid nonce', + ); + }); + + it('rejects bad delegatee', async function () { + const { v, r, s } = fromRpcSig( + ethSigUtil.signTypedMessage( + delegator.getPrivateKey(), + buildData(this.chainId, this.token.address, { + delegatee: delegatorAddress, + nonce, + expiry: MAX_UINT256, + }), + ), + ); + + const receipt = await this.token.delegateBySig(holderDelegatee, nonce, MAX_UINT256, v, r, s); + const { args } = receipt.logs.find(({ event }) => event == 'DelegateChanged'); + expect(args.delegator).to.not.be.equal(delegatorAddress); + expect(args.fromDelegate).to.be.equal(ZERO_ADDRESS); + expect(args.toDelegate).to.be.equal(holderDelegatee); + }); + + it('rejects bad nonce', async function () { + const { v, r, s } = fromRpcSig( + ethSigUtil.signTypedMessage( + delegator.getPrivateKey(), + buildData(this.chainId, this.token.address, { + delegatee: delegatorAddress, + nonce, + expiry: MAX_UINT256, + }), + ), + ); + await expectRevert( + this.token.delegateBySig(delegatorAddress, nonce + 1, MAX_UINT256, v, r, s), + 'ERC20Votes: invalid nonce', + ); + }); + + it('rejects expired permit', async function () { + const expiry = (await time.latest()) - time.duration.weeks(1); + const { v, r, s } = fromRpcSig( + ethSigUtil.signTypedMessage( + delegator.getPrivateKey(), + buildData(this.chainId, this.token.address, { + delegatee: delegatorAddress, + nonce, + expiry, + }), + ), + ); + + await expectRevert( + this.token.delegateBySig(delegatorAddress, nonce, expiry, v, r, s), + 'ERC20Votes: signature expired', + ); + }); + }); + }); + + describe('change delegation', function () { + beforeEach(async function () { + await this.token.$_mint(holder, supply); + await this.token.delegate(holder, { from: holder }); + }); + + it('call', async function () { + expect(await this.token.delegates(holder)).to.be.equal(holder); + + const { receipt } = await this.token.delegate(holderDelegatee, { from: holder }); + expectEvent(receipt, 'DelegateChanged', { + delegator: holder, + fromDelegate: holder, + toDelegate: holderDelegatee, + }); + expectEvent(receipt, 'DelegateVotesChanged', { + delegate: holder, + previousBalance: supply, + newBalance: '0', + }); + expectEvent(receipt, 'DelegateVotesChanged', { + delegate: holderDelegatee, + previousBalance: '0', + newBalance: supply, + }); + + expect(await this.token.delegates(holder)).to.be.equal(holderDelegatee); + + expect(await this.token.getCurrentVotes(holder)).to.be.bignumber.equal('0'); + expect(await this.token.getCurrentVotes(holderDelegatee)).to.be.bignumber.equal(supply); + expect(await this.token.getPriorVotes(holder, receipt.blockNumber - 1)).to.be.bignumber.equal(supply); + expect(await this.token.getPriorVotes(holderDelegatee, receipt.blockNumber - 1)).to.be.bignumber.equal('0'); + await time.advanceBlock(); + expect(await this.token.getPriorVotes(holder, receipt.blockNumber)).to.be.bignumber.equal('0'); + expect(await this.token.getPriorVotes(holderDelegatee, receipt.blockNumber)).to.be.bignumber.equal(supply); + }); + }); + + describe('transfers', function () { + beforeEach(async function () { + await this.token.$_mint(holder, supply); + }); + + it('no delegation', async function () { + const { receipt } = await this.token.transfer(recipient, 1, { from: holder }); + expectEvent(receipt, 'Transfer', { from: holder, to: recipient, value: '1' }); + expectEvent.notEmitted(receipt, 'DelegateVotesChanged'); + + this.holderVotes = '0'; + this.recipientVotes = '0'; + }); + + it('sender delegation', async function () { + await this.token.delegate(holder, { from: holder }); + + const { receipt } = await this.token.transfer(recipient, 1, { from: holder }); + expectEvent(receipt, 'Transfer', { from: holder, to: recipient, value: '1' }); + expectEvent(receipt, 'DelegateVotesChanged', { + delegate: holder, + previousBalance: supply, + newBalance: supply.subn(1), + }); + + this.holderVotes = supply.subn(1); + this.recipientVotes = '0'; + }); + + it('receiver delegation', async function () { + await this.token.delegate(recipient, { from: recipient }); + + const { receipt } = await this.token.transfer(recipient, 1, { from: holder }); + expectEvent(receipt, 'Transfer', { from: holder, to: recipient, value: '1' }); + expectEvent(receipt, 'DelegateVotesChanged', { delegate: recipient, previousBalance: '0', newBalance: '1' }); + + this.holderVotes = '0'; + this.recipientVotes = '1'; + }); + + it('full delegation', async function () { + await this.token.delegate(holder, { from: holder }); + await this.token.delegate(recipient, { from: recipient }); + + const { receipt } = await this.token.transfer(recipient, 1, { from: holder }); + expectEvent(receipt, 'Transfer', { from: holder, to: recipient, value: '1' }); + expectEvent(receipt, 'DelegateVotesChanged', { + delegate: holder, + previousBalance: supply, + newBalance: supply.subn(1), + }); + expectEvent(receipt, 'DelegateVotesChanged', { delegate: recipient, previousBalance: '0', newBalance: '1' }); + + this.holderVotes = supply.subn(1); + this.recipientVotes = '1'; + }); + + afterEach(async function () { + expect(await this.token.getCurrentVotes(holder)).to.be.bignumber.equal(this.holderVotes); + expect(await this.token.getCurrentVotes(recipient)).to.be.bignumber.equal(this.recipientVotes); + + // need to advance 2 blocks to see the effect of a transfer on "getPriorVotes" + const blockNumber = await time.latestBlock(); + await time.advanceBlock(); + expect(await this.token.getPriorVotes(holder, blockNumber)).to.be.bignumber.equal(this.holderVotes); + expect(await this.token.getPriorVotes(recipient, blockNumber)).to.be.bignumber.equal(this.recipientVotes); + }); + }); + + // The following tests are a adaptation of https://github.com/compound-finance/compound-protocol/blob/master/tests/Governance/CompTest.js. + describe('Compound test suite', function () { + beforeEach(async function () { + await this.token.$_mint(holder, supply); + }); + + describe('balanceOf', function () { + it('grants to initial account', async function () { + expect(await this.token.balanceOf(holder)).to.be.bignumber.equal('10000000000000000000000000'); + }); + }); + + describe('numCheckpoints', function () { + it('returns the number of checkpoints for a delegate', async function () { + await this.token.transfer(recipient, '100', { from: holder }); //give an account a few tokens for readability + expect(await this.token.numCheckpoints(other1)).to.be.bignumber.equal('0'); + + const t1 = await this.token.delegate(other1, { from: recipient }); + expect(await this.token.numCheckpoints(other1)).to.be.bignumber.equal('1'); + + const t2 = await this.token.transfer(other2, 10, { from: recipient }); + expect(await this.token.numCheckpoints(other1)).to.be.bignumber.equal('2'); + + const t3 = await this.token.transfer(other2, 10, { from: recipient }); + expect(await this.token.numCheckpoints(other1)).to.be.bignumber.equal('3'); + + const t4 = await this.token.transfer(recipient, 20, { from: holder }); + expect(await this.token.numCheckpoints(other1)).to.be.bignumber.equal('4'); + + expect(await this.token.checkpoints(other1, 0)).to.be.deep.equal([t1.receipt.blockNumber.toString(), '100']); + expect(await this.token.checkpoints(other1, 1)).to.be.deep.equal([t2.receipt.blockNumber.toString(), '90']); + expect(await this.token.checkpoints(other1, 2)).to.be.deep.equal([t3.receipt.blockNumber.toString(), '80']); + expect(await this.token.checkpoints(other1, 3)).to.be.deep.equal([t4.receipt.blockNumber.toString(), '100']); + + await time.advanceBlock(); + expect(await this.token.getPriorVotes(other1, t1.receipt.blockNumber)).to.be.bignumber.equal('100'); + expect(await this.token.getPriorVotes(other1, t2.receipt.blockNumber)).to.be.bignumber.equal('90'); + expect(await this.token.getPriorVotes(other1, t3.receipt.blockNumber)).to.be.bignumber.equal('80'); + expect(await this.token.getPriorVotes(other1, t4.receipt.blockNumber)).to.be.bignumber.equal('100'); + }); + + it('does not add more than one checkpoint in a block', async function () { + await this.token.transfer(recipient, '100', { from: holder }); + expect(await this.token.numCheckpoints(other1)).to.be.bignumber.equal('0'); + + const [t1, t2, t3] = await batchInBlock([ + () => this.token.delegate(other1, { from: recipient, gas: 100000 }), + () => this.token.transfer(other2, 10, { from: recipient, gas: 100000 }), + () => this.token.transfer(other2, 10, { from: recipient, gas: 100000 }), + ]); + expect(await this.token.numCheckpoints(other1)).to.be.bignumber.equal('1'); + expect(await this.token.checkpoints(other1, 0)).to.be.deep.equal([t1.receipt.blockNumber.toString(), '80']); + // expectReve(await this.token.checkpoints(other1, 1)).to.be.deep.equal([ '0', '0' ]); // Reverts due to array overflow check + // expect(await this.token.checkpoints(other1, 2)).to.be.deep.equal([ '0', '0' ]); // Reverts due to array overflow check + + const t4 = await this.token.transfer(recipient, 20, { from: holder }); + expect(await this.token.numCheckpoints(other1)).to.be.bignumber.equal('2'); + expect(await this.token.checkpoints(other1, 1)).to.be.deep.equal([t4.receipt.blockNumber.toString(), '100']); + }); + }); + + describe('getPriorVotes', function () { + it('reverts if block number >= current block', async function () { + await expectRevert(this.token.getPriorVotes(other1, 5e10), 'ERC20Votes: block not yet mined'); + }); + + it('returns 0 if there are no checkpoints', async function () { + expect(await this.token.getPriorVotes(other1, 0)).to.be.bignumber.equal('0'); + }); + + it('returns the latest block if >= last checkpoint block', async function () { + const t1 = await this.token.delegate(other1, { from: holder }); + await time.advanceBlock(); + await time.advanceBlock(); + + expect(await this.token.getPriorVotes(other1, t1.receipt.blockNumber)).to.be.bignumber.equal( + '10000000000000000000000000', + ); + expect(await this.token.getPriorVotes(other1, t1.receipt.blockNumber + 1)).to.be.bignumber.equal( + '10000000000000000000000000', + ); + }); + + it('returns zero if < first checkpoint block', async function () { + await time.advanceBlock(); + const t1 = await this.token.delegate(other1, { from: holder }); + await time.advanceBlock(); + await time.advanceBlock(); + + expect(await this.token.getPriorVotes(other1, t1.receipt.blockNumber - 1)).to.be.bignumber.equal('0'); + expect(await this.token.getPriorVotes(other1, t1.receipt.blockNumber + 1)).to.be.bignumber.equal( + '10000000000000000000000000', + ); + }); + + it('generally returns the voting balance at the appropriate checkpoint', async function () { + const t1 = await this.token.delegate(other1, { from: holder }); + await time.advanceBlock(); + await time.advanceBlock(); + const t2 = await this.token.transfer(other2, 10, { from: holder }); + await time.advanceBlock(); + await time.advanceBlock(); + const t3 = await this.token.transfer(other2, 10, { from: holder }); + await time.advanceBlock(); + await time.advanceBlock(); + const t4 = await this.token.transfer(holder, 20, { from: other2 }); + await time.advanceBlock(); + await time.advanceBlock(); + + expect(await this.token.getPriorVotes(other1, t1.receipt.blockNumber - 1)).to.be.bignumber.equal('0'); + expect(await this.token.getPriorVotes(other1, t1.receipt.blockNumber)).to.be.bignumber.equal( + '10000000000000000000000000', + ); + expect(await this.token.getPriorVotes(other1, t1.receipt.blockNumber + 1)).to.be.bignumber.equal( + '10000000000000000000000000', + ); + expect(await this.token.getPriorVotes(other1, t2.receipt.blockNumber)).to.be.bignumber.equal( + '9999999999999999999999990', + ); + expect(await this.token.getPriorVotes(other1, t2.receipt.blockNumber + 1)).to.be.bignumber.equal( + '9999999999999999999999990', + ); + expect(await this.token.getPriorVotes(other1, t3.receipt.blockNumber)).to.be.bignumber.equal( + '9999999999999999999999980', + ); + expect(await this.token.getPriorVotes(other1, t3.receipt.blockNumber + 1)).to.be.bignumber.equal( + '9999999999999999999999980', + ); + expect(await this.token.getPriorVotes(other1, t4.receipt.blockNumber)).to.be.bignumber.equal( + '10000000000000000000000000', + ); + expect(await this.token.getPriorVotes(other1, t4.receipt.blockNumber + 1)).to.be.bignumber.equal( + '10000000000000000000000000', + ); + }); + }); + }); + + describe('getPastTotalSupply', function () { + beforeEach(async function () { + await this.token.delegate(holder, { from: holder }); + }); + + it('reverts if block number >= current block', async function () { + await expectRevert(this.token.getPastTotalSupply(5e10), 'ERC20Votes: block not yet mined'); + }); + + it('returns 0 if there are no checkpoints', async function () { + expect(await this.token.getPastTotalSupply(0)).to.be.bignumber.equal('0'); + }); + + it('returns the latest block if >= last checkpoint block', async function () { + t1 = await this.token.$_mint(holder, supply); + + await time.advanceBlock(); + await time.advanceBlock(); + + expect(await this.token.getPastTotalSupply(t1.receipt.blockNumber)).to.be.bignumber.equal(supply); + expect(await this.token.getPastTotalSupply(t1.receipt.blockNumber + 1)).to.be.bignumber.equal(supply); + }); + + it('returns zero if < first checkpoint block', async function () { + await time.advanceBlock(); + const t1 = await this.token.$_mint(holder, supply); + await time.advanceBlock(); + await time.advanceBlock(); + + expect(await this.token.getPastTotalSupply(t1.receipt.blockNumber - 1)).to.be.bignumber.equal('0'); + expect(await this.token.getPastTotalSupply(t1.receipt.blockNumber + 1)).to.be.bignumber.equal( + '10000000000000000000000000', + ); + }); + + it('generally returns the voting balance at the appropriate checkpoint', async function () { + const t1 = await this.token.$_mint(holder, supply); + await time.advanceBlock(); + await time.advanceBlock(); + const t2 = await this.token.$_burn(holder, 10); + await time.advanceBlock(); + await time.advanceBlock(); + const t3 = await this.token.$_burn(holder, 10); + await time.advanceBlock(); + await time.advanceBlock(); + const t4 = await this.token.$_mint(holder, 20); + await time.advanceBlock(); + await time.advanceBlock(); + + expect(await this.token.getPastTotalSupply(t1.receipt.blockNumber - 1)).to.be.bignumber.equal('0'); + expect(await this.token.getPastTotalSupply(t1.receipt.blockNumber)).to.be.bignumber.equal( + '10000000000000000000000000', + ); + expect(await this.token.getPastTotalSupply(t1.receipt.blockNumber + 1)).to.be.bignumber.equal( + '10000000000000000000000000', + ); + expect(await this.token.getPastTotalSupply(t2.receipt.blockNumber)).to.be.bignumber.equal( + '9999999999999999999999990', + ); + expect(await this.token.getPastTotalSupply(t2.receipt.blockNumber + 1)).to.be.bignumber.equal( + '9999999999999999999999990', + ); + expect(await this.token.getPastTotalSupply(t3.receipt.blockNumber)).to.be.bignumber.equal( + '9999999999999999999999980', + ); + expect(await this.token.getPastTotalSupply(t3.receipt.blockNumber + 1)).to.be.bignumber.equal( + '9999999999999999999999980', + ); + expect(await this.token.getPastTotalSupply(t4.receipt.blockNumber)).to.be.bignumber.equal( + '10000000000000000000000000', + ); + expect(await this.token.getPastTotalSupply(t4.receipt.blockNumber + 1)).to.be.bignumber.equal( + '10000000000000000000000000', + ); + }); + }); +}); diff --git a/lib/openzeppelin-contracts/test/token/ERC20/extensions/ERC20Wrapper.test.js b/lib/openzeppelin-contracts/test/token/ERC20/extensions/ERC20Wrapper.test.js new file mode 100644 index 0000000..cfb47bf --- /dev/null +++ b/lib/openzeppelin-contracts/test/token/ERC20/extensions/ERC20Wrapper.test.js @@ -0,0 +1,190 @@ +const { BN, constants, expectEvent, expectRevert } = require('@openzeppelin/test-helpers'); +const { expect } = require('chai'); +const { ZERO_ADDRESS, MAX_UINT256 } = constants; + +const { shouldBehaveLikeERC20 } = require('../ERC20.behavior'); + +const NotAnERC20 = artifacts.require('CallReceiverMock'); +const ERC20Decimals = artifacts.require('$ERC20DecimalsMock'); +const ERC20Wrapper = artifacts.require('$ERC20Wrapper'); + +contract('ERC20', function (accounts) { + const [initialHolder, recipient, anotherAccount] = accounts; + + const name = 'My Token'; + const symbol = 'MTKN'; + + const initialSupply = new BN(100); + + beforeEach(async function () { + this.underlying = await ERC20Decimals.new(name, symbol, 9); + await this.underlying.$_mint(initialHolder, initialSupply); + + this.token = await ERC20Wrapper.new(`Wrapped ${name}`, `W${symbol}`, this.underlying.address); + }); + + afterEach(async function () { + expect(await this.underlying.balanceOf(this.token.address)).to.be.bignumber.equal(await this.token.totalSupply()); + }); + + it('has a name', async function () { + expect(await this.token.name()).to.equal(`Wrapped ${name}`); + }); + + it('has a symbol', async function () { + expect(await this.token.symbol()).to.equal(`W${symbol}`); + }); + + it('has the same decimals as the underlying token', async function () { + expect(await this.token.decimals()).to.be.bignumber.equal('9'); + }); + + it('decimals default back to 18 if token has no metadata', async function () { + const noDecimals = await NotAnERC20.new(); + const otherToken = await ERC20Wrapper.new(`Wrapped ${name}`, `W${symbol}`, noDecimals.address); + expect(await otherToken.decimals()).to.be.bignumber.equal('18'); + }); + + it('has underlying', async function () { + expect(await this.token.underlying()).to.be.bignumber.equal(this.underlying.address); + }); + + describe('deposit', function () { + it('valid', async function () { + await this.underlying.approve(this.token.address, initialSupply, { from: initialHolder }); + const { tx } = await this.token.depositFor(initialHolder, initialSupply, { from: initialHolder }); + await expectEvent.inTransaction(tx, this.underlying, 'Transfer', { + from: initialHolder, + to: this.token.address, + value: initialSupply, + }); + await expectEvent.inTransaction(tx, this.token, 'Transfer', { + from: ZERO_ADDRESS, + to: initialHolder, + value: initialSupply, + }); + }); + + it('missing approval', async function () { + await expectRevert( + this.token.depositFor(initialHolder, initialSupply, { from: initialHolder }), + 'ERC20: insufficient allowance', + ); + }); + + it('missing balance', async function () { + await this.underlying.approve(this.token.address, MAX_UINT256, { from: initialHolder }); + await expectRevert( + this.token.depositFor(initialHolder, MAX_UINT256, { from: initialHolder }), + 'ERC20: transfer amount exceeds balance', + ); + }); + + it('to other account', async function () { + await this.underlying.approve(this.token.address, initialSupply, { from: initialHolder }); + const { tx } = await this.token.depositFor(anotherAccount, initialSupply, { from: initialHolder }); + await expectEvent.inTransaction(tx, this.underlying, 'Transfer', { + from: initialHolder, + to: this.token.address, + value: initialSupply, + }); + await expectEvent.inTransaction(tx, this.token, 'Transfer', { + from: ZERO_ADDRESS, + to: anotherAccount, + value: initialSupply, + }); + }); + }); + + describe('withdraw', function () { + beforeEach(async function () { + await this.underlying.approve(this.token.address, initialSupply, { from: initialHolder }); + await this.token.depositFor(initialHolder, initialSupply, { from: initialHolder }); + }); + + it('missing balance', async function () { + await expectRevert( + this.token.withdrawTo(initialHolder, MAX_UINT256, { from: initialHolder }), + 'ERC20: burn amount exceeds balance', + ); + }); + + it('valid', async function () { + const value = new BN(42); + + const { tx } = await this.token.withdrawTo(initialHolder, value, { from: initialHolder }); + await expectEvent.inTransaction(tx, this.underlying, 'Transfer', { + from: this.token.address, + to: initialHolder, + value: value, + }); + await expectEvent.inTransaction(tx, this.token, 'Transfer', { + from: initialHolder, + to: ZERO_ADDRESS, + value: value, + }); + }); + + it('entire balance', async function () { + const { tx } = await this.token.withdrawTo(initialHolder, initialSupply, { from: initialHolder }); + await expectEvent.inTransaction(tx, this.underlying, 'Transfer', { + from: this.token.address, + to: initialHolder, + value: initialSupply, + }); + await expectEvent.inTransaction(tx, this.token, 'Transfer', { + from: initialHolder, + to: ZERO_ADDRESS, + value: initialSupply, + }); + }); + + it('to other account', async function () { + const { tx } = await this.token.withdrawTo(anotherAccount, initialSupply, { from: initialHolder }); + await expectEvent.inTransaction(tx, this.underlying, 'Transfer', { + from: this.token.address, + to: anotherAccount, + value: initialSupply, + }); + await expectEvent.inTransaction(tx, this.token, 'Transfer', { + from: initialHolder, + to: ZERO_ADDRESS, + value: initialSupply, + }); + }); + }); + + describe('recover', function () { + it('nothing to recover', async function () { + await this.underlying.approve(this.token.address, initialSupply, { from: initialHolder }); + await this.token.depositFor(initialHolder, initialSupply, { from: initialHolder }); + + const { tx } = await this.token.$_recover(anotherAccount); + await expectEvent.inTransaction(tx, this.token, 'Transfer', { + from: ZERO_ADDRESS, + to: anotherAccount, + value: '0', + }); + }); + + it('something to recover', async function () { + await this.underlying.transfer(this.token.address, initialSupply, { from: initialHolder }); + + const { tx } = await this.token.$_recover(anotherAccount); + await expectEvent.inTransaction(tx, this.token, 'Transfer', { + from: ZERO_ADDRESS, + to: anotherAccount, + value: initialSupply, + }); + }); + }); + + describe('erc20 behaviour', function () { + beforeEach(async function () { + await this.underlying.approve(this.token.address, initialSupply, { from: initialHolder }); + await this.token.depositFor(initialHolder, initialSupply, { from: initialHolder }); + }); + + shouldBehaveLikeERC20('ERC20', initialSupply, initialHolder, recipient, anotherAccount); + }); +}); diff --git a/lib/openzeppelin-contracts/test/token/ERC20/extensions/ERC4626.t.sol b/lib/openzeppelin-contracts/test/token/ERC20/extensions/ERC4626.t.sol new file mode 100644 index 0000000..3d7dd4a --- /dev/null +++ b/lib/openzeppelin-contracts/test/token/ERC20/extensions/ERC4626.t.sol @@ -0,0 +1,36 @@ +// SPDX-License-Identifier: MIT +pragma solidity ^0.8.0; + +import "erc4626-tests/ERC4626.test.sol"; + +import {SafeCast} from "../../../../contracts/utils/math/SafeCast.sol"; +import {ERC20Mock} from "../../../../contracts/mocks/ERC20Mock.sol"; +import {ERC4626Mock} from "../../../../contracts/mocks/ERC4626Mock.sol"; + +contract ERC4626StdTest is ERC4626Test { + function setUp() public override { + _underlying_ = address(new ERC20Mock()); + _vault_ = address(new ERC4626Mock(_underlying_)); + _delta_ = 0; + _vaultMayBeEmpty = false; + _unlimitedAmount = true; + } + + // solhint-disable-next-line func-name-mixedcase + function test_RT_mint_withdraw(ERC4626Test.Init memory init, uint256 shares) public override { + // There is an edge case where we currently behave different than the property tests, + // when all assets are lost to negative yield. + + // Sum all initially deposited assets. + int256 initAssets = 0; + for (uint256 i = 0; i < init.share.length; i++) { + vm.assume(init.share[i] <= uint256(type(int256).max - initAssets)); + initAssets += SafeCast.toInt256(init.share[i]); + } + + // Reject tests where the yield loses all assets from the vault. + vm.assume(init.yield > -initAssets); + + super.test_RT_mint_withdraw(init, shares); + } +} diff --git a/lib/openzeppelin-contracts/test/token/ERC20/extensions/ERC4626.test.js b/lib/openzeppelin-contracts/test/token/ERC20/extensions/ERC4626.test.js new file mode 100644 index 0000000..f85ffd5 --- /dev/null +++ b/lib/openzeppelin-contracts/test/token/ERC20/extensions/ERC4626.test.js @@ -0,0 +1,622 @@ +const { BN, constants, expectEvent, expectRevert } = require('@openzeppelin/test-helpers'); +const { expect } = require('chai'); + +const ERC20Decimals = artifacts.require('$ERC20DecimalsMock'); +const ERC4626 = artifacts.require('$ERC4626'); +const ERC4626Decimals = artifacts.require('$ERC4626DecimalsMock'); + +const parseToken = token => new BN(token).mul(new BN('1000000000000')); +const parseShare = share => new BN(share).mul(new BN('1000000000000000000')); + +contract('ERC4626', function (accounts) { + const [holder, recipient, spender, other, user1, user2] = accounts; + + const name = 'My Token'; + const symbol = 'MTKN'; + + beforeEach(async function () { + this.token = await ERC20Decimals.new(name, symbol, 12); + this.vault = await ERC4626Decimals.new(name + ' Vault', symbol + 'V', this.token.address, 18); + + await this.token.$_mint(holder, web3.utils.toWei('100')); + await this.token.approve(this.vault.address, constants.MAX_UINT256, { from: holder }); + await this.vault.approve(spender, constants.MAX_UINT256, { from: holder }); + }); + + it('metadata', async function () { + expect(await this.vault.name()).to.be.equal(name + ' Vault'); + expect(await this.vault.symbol()).to.be.equal(symbol + 'V'); + expect(await this.vault.decimals()).to.be.bignumber.equal('18'); + expect(await this.vault.asset()).to.be.equal(this.token.address); + }); + + it('inherit decimals if from asset', async function () { + for (const decimals of [0, 9, 12, 18, 36].map(web3.utils.toBN)) { + const token = await ERC20Decimals.new('', '', decimals); + const vault = await ERC4626.new('', '', token.address); + expect(await vault.decimals()).to.be.bignumber.equal(decimals); + } + }); + + describe('empty vault: no assets & no shares', function () { + it('status', async function () { + expect(await this.vault.totalAssets()).to.be.bignumber.equal('0'); + }); + + it('deposit', async function () { + expect(await this.vault.maxDeposit(holder)).to.be.bignumber.equal(constants.MAX_UINT256); + expect(await this.vault.previewDeposit(parseToken(1))).to.be.bignumber.equal(parseShare(1)); + + const { tx } = await this.vault.deposit(parseToken(1), recipient, { from: holder }); + + expectEvent.inTransaction(tx, this.token, 'Transfer', { + from: holder, + to: this.vault.address, + value: parseToken(1), + }); + + expectEvent.inTransaction(tx, this.vault, 'Transfer', { + from: constants.ZERO_ADDRESS, + to: recipient, + value: parseShare(1), + }); + }); + + it('mint', async function () { + expect(await this.vault.maxMint(holder)).to.be.bignumber.equal(constants.MAX_UINT256); + expect(await this.vault.previewMint(parseShare(1))).to.be.bignumber.equal(parseToken(1)); + + const { tx } = await this.vault.mint(parseShare(1), recipient, { from: holder }); + + expectEvent.inTransaction(tx, this.token, 'Transfer', { + from: holder, + to: this.vault.address, + value: parseToken(1), + }); + + expectEvent.inTransaction(tx, this.vault, 'Transfer', { + from: constants.ZERO_ADDRESS, + to: recipient, + value: parseShare(1), + }); + }); + + it('withdraw', async function () { + expect(await this.vault.maxWithdraw(holder)).to.be.bignumber.equal('0'); + expect(await this.vault.previewWithdraw('0')).to.be.bignumber.equal('0'); + + const { tx } = await this.vault.withdraw('0', recipient, holder, { from: holder }); + + expectEvent.inTransaction(tx, this.token, 'Transfer', { + from: this.vault.address, + to: recipient, + value: '0', + }); + + expectEvent.inTransaction(tx, this.vault, 'Transfer', { + from: holder, + to: constants.ZERO_ADDRESS, + value: '0', + }); + }); + + it('redeem', async function () { + expect(await this.vault.maxRedeem(holder)).to.be.bignumber.equal('0'); + expect(await this.vault.previewRedeem('0')).to.be.bignumber.equal('0'); + + const { tx } = await this.vault.redeem('0', recipient, holder, { from: holder }); + + expectEvent.inTransaction(tx, this.token, 'Transfer', { + from: this.vault.address, + to: recipient, + value: '0', + }); + + expectEvent.inTransaction(tx, this.vault, 'Transfer', { + from: holder, + to: constants.ZERO_ADDRESS, + value: '0', + }); + }); + }); + + describe('partially empty vault: assets & no shares', function () { + beforeEach(async function () { + await this.token.$_mint(this.vault.address, parseToken(1)); // 1 token + }); + + it('status', async function () { + expect(await this.vault.totalAssets()).to.be.bignumber.equal(parseToken(1)); + }); + + it('deposit', async function () { + expect(await this.vault.maxDeposit(holder)).to.be.bignumber.equal(constants.MAX_UINT256); + expect(await this.vault.previewDeposit(parseToken(1))).to.be.bignumber.equal(parseShare(1)); + + const { tx } = await this.vault.deposit(parseToken(1), recipient, { from: holder }); + + expectEvent.inTransaction(tx, this.token, 'Transfer', { + from: holder, + to: this.vault.address, + value: parseToken(1), + }); + + expectEvent.inTransaction(tx, this.vault, 'Transfer', { + from: constants.ZERO_ADDRESS, + to: recipient, + value: parseShare(1), + }); + }); + + it('mint', async function () { + expect(await this.vault.maxMint(holder)).to.be.bignumber.equal(constants.MAX_UINT256); + expect(await this.vault.previewMint(parseShare(1))).to.be.bignumber.equal(parseToken(1)); + + const { tx } = await this.vault.mint(parseShare(1), recipient, { from: holder }); + + expectEvent.inTransaction(tx, this.token, 'Transfer', { + from: holder, + to: this.vault.address, + value: parseToken(1), + }); + + expectEvent.inTransaction(tx, this.vault, 'Transfer', { + from: constants.ZERO_ADDRESS, + to: recipient, + value: parseShare(1), + }); + }); + + it('withdraw', async function () { + expect(await this.vault.maxWithdraw(holder)).to.be.bignumber.equal('0'); + expect(await this.vault.previewWithdraw('0')).to.be.bignumber.equal('0'); + + const { tx } = await this.vault.withdraw('0', recipient, holder, { from: holder }); + + expectEvent.inTransaction(tx, this.token, 'Transfer', { + from: this.vault.address, + to: recipient, + value: '0', + }); + + expectEvent.inTransaction(tx, this.vault, 'Transfer', { + from: holder, + to: constants.ZERO_ADDRESS, + value: '0', + }); + }); + + it('redeem', async function () { + expect(await this.vault.maxRedeem(holder)).to.be.bignumber.equal('0'); + expect(await this.vault.previewRedeem('0')).to.be.bignumber.equal('0'); + + const { tx } = await this.vault.redeem('0', recipient, holder, { from: holder }); + + expectEvent.inTransaction(tx, this.token, 'Transfer', { + from: this.vault.address, + to: recipient, + value: '0', + }); + + expectEvent.inTransaction(tx, this.vault, 'Transfer', { + from: holder, + to: constants.ZERO_ADDRESS, + value: '0', + }); + }); + }); + + describe('partially empty vault: shares & no assets', function () { + beforeEach(async function () { + await this.vault.$_mint(holder, parseShare(1)); // 1 share + }); + + it('status', async function () { + expect(await this.vault.totalAssets()).to.be.bignumber.equal('0'); + }); + + it('deposit', async function () { + expect(await this.vault.maxDeposit(holder)).to.be.bignumber.equal('0'); + + // Can deposit 0 (max deposit) + const { tx } = await this.vault.deposit(0, recipient, { from: holder }); + + expectEvent.inTransaction(tx, this.token, 'Transfer', { + from: holder, + to: this.vault.address, + value: 0, + }); + + expectEvent.inTransaction(tx, this.vault, 'Transfer', { + from: constants.ZERO_ADDRESS, + to: recipient, + value: 0, + }); + + // Cannot deposit more than 0 + await expectRevert.unspecified(this.vault.previewDeposit(parseToken(1))); + await expectRevert( + this.vault.deposit(parseToken(1), recipient, { from: holder }), + 'ERC4626: deposit more than max', + ); + }); + + it('mint', async function () { + expect(await this.vault.maxMint(holder)).to.be.bignumber.equal(constants.MAX_UINT256); + expect(await this.vault.previewMint(parseShare(1))).to.be.bignumber.equal('0'); + + const { tx } = await this.vault.mint(parseShare(1), recipient, { from: holder }); + + expectEvent.inTransaction(tx, this.token, 'Transfer', { + from: holder, + to: this.vault.address, + value: '0', + }); + + expectEvent.inTransaction(tx, this.vault, 'Transfer', { + from: constants.ZERO_ADDRESS, + to: recipient, + value: parseShare(1), + }); + }); + + it('withdraw', async function () { + expect(await this.vault.maxWithdraw(holder)).to.be.bignumber.equal('0'); + expect(await this.vault.previewWithdraw('0')).to.be.bignumber.equal('0'); + await expectRevert.unspecified(this.vault.previewWithdraw('1')); + + const { tx } = await this.vault.withdraw('0', recipient, holder, { from: holder }); + + expectEvent.inTransaction(tx, this.token, 'Transfer', { + from: this.vault.address, + to: recipient, + value: '0', + }); + + expectEvent.inTransaction(tx, this.vault, 'Transfer', { + from: holder, + to: constants.ZERO_ADDRESS, + value: '0', + }); + }); + + it('redeem', async function () { + expect(await this.vault.maxRedeem(holder)).to.be.bignumber.equal(parseShare(1)); + expect(await this.vault.previewRedeem(parseShare(1))).to.be.bignumber.equal('0'); + + const { tx } = await this.vault.redeem(parseShare(1), recipient, holder, { from: holder }); + + expectEvent.inTransaction(tx, this.token, 'Transfer', { + from: this.vault.address, + to: recipient, + value: '0', + }); + + expectEvent.inTransaction(tx, this.vault, 'Transfer', { + from: holder, + to: constants.ZERO_ADDRESS, + value: parseShare(1), + }); + }); + }); + + describe('full vault: assets & shares', function () { + beforeEach(async function () { + await this.token.$_mint(this.vault.address, parseToken(1)); // 1 tokens + await this.vault.$_mint(holder, parseShare(100)); // 100 share + }); + + it('status', async function () { + expect(await this.vault.totalAssets()).to.be.bignumber.equal(parseToken(1)); + }); + + it('deposit', async function () { + expect(await this.vault.maxDeposit(holder)).to.be.bignumber.equal(constants.MAX_UINT256); + expect(await this.vault.previewDeposit(parseToken(1))).to.be.bignumber.equal(parseShare(100)); + + const { tx } = await this.vault.deposit(parseToken(1), recipient, { from: holder }); + + expectEvent.inTransaction(tx, this.token, 'Transfer', { + from: holder, + to: this.vault.address, + value: parseToken(1), + }); + + expectEvent.inTransaction(tx, this.vault, 'Transfer', { + from: constants.ZERO_ADDRESS, + to: recipient, + value: parseShare(100), + }); + }); + + it('mint', async function () { + expect(await this.vault.maxMint(holder)).to.be.bignumber.equal(constants.MAX_UINT256); + expect(await this.vault.previewMint(parseShare(1))).to.be.bignumber.equal(parseToken(1).divn(100)); + + const { tx } = await this.vault.mint(parseShare(1), recipient, { from: holder }); + + expectEvent.inTransaction(tx, this.token, 'Transfer', { + from: holder, + to: this.vault.address, + value: parseToken(1).divn(100), + }); + + expectEvent.inTransaction(tx, this.vault, 'Transfer', { + from: constants.ZERO_ADDRESS, + to: recipient, + value: parseShare(1), + }); + }); + + it('withdraw', async function () { + expect(await this.vault.maxWithdraw(holder)).to.be.bignumber.equal(parseToken(1)); + expect(await this.vault.previewWithdraw(parseToken(1))).to.be.bignumber.equal(parseShare(100)); + + const { tx } = await this.vault.withdraw(parseToken(1), recipient, holder, { from: holder }); + + expectEvent.inTransaction(tx, this.token, 'Transfer', { + from: this.vault.address, + to: recipient, + value: parseToken(1), + }); + + expectEvent.inTransaction(tx, this.vault, 'Transfer', { + from: holder, + to: constants.ZERO_ADDRESS, + value: parseShare(100), + }); + }); + + it('withdraw with approval', async function () { + await expectRevert( + this.vault.withdraw(parseToken(1), recipient, holder, { from: other }), + 'ERC20: insufficient allowance', + ); + + await this.vault.withdraw(parseToken(1), recipient, holder, { from: spender }); + }); + + it('redeem', async function () { + expect(await this.vault.maxRedeem(holder)).to.be.bignumber.equal(parseShare(100)); + expect(await this.vault.previewRedeem(parseShare(100))).to.be.bignumber.equal(parseToken(1)); + + const { tx } = await this.vault.redeem(parseShare(100), recipient, holder, { from: holder }); + + expectEvent.inTransaction(tx, this.token, 'Transfer', { + from: this.vault.address, + to: recipient, + value: parseToken(1), + }); + + expectEvent.inTransaction(tx, this.vault, 'Transfer', { + from: holder, + to: constants.ZERO_ADDRESS, + value: parseShare(100), + }); + }); + + it('redeem with approval', async function () { + await expectRevert( + this.vault.redeem(parseShare(100), recipient, holder, { from: other }), + 'ERC20: insufficient allowance', + ); + + await this.vault.redeem(parseShare(100), recipient, holder, { from: spender }); + }); + }); + + /// Scenario inspired by solmate ERC4626 tests: + /// https://github.com/transmissions11/solmate/blob/main/src/test/ERC4626.t.sol + it('multiple mint, deposit, redeem & withdrawal', async function () { + // test designed with both asset using similar decimals + this.token = await ERC20Decimals.new(name, symbol, 18); + this.vault = await ERC4626.new(name + ' Vault', symbol + 'V', this.token.address); + + await this.token.$_mint(user1, 4000); + await this.token.$_mint(user2, 7001); + await this.token.approve(this.vault.address, 4000, { from: user1 }); + await this.token.approve(this.vault.address, 7001, { from: user2 }); + + // 1. Alice mints 2000 shares (costs 2000 tokens) + { + const { tx } = await this.vault.mint(2000, user1, { from: user1 }); + expectEvent.inTransaction(tx, this.token, 'Transfer', { + from: user1, + to: this.vault.address, + value: '2000', + }); + expectEvent.inTransaction(tx, this.vault, 'Transfer', { + from: constants.ZERO_ADDRESS, + to: user1, + value: '2000', + }); + + expect(await this.vault.previewDeposit(2000)).to.be.bignumber.equal('2000'); + expect(await this.vault.balanceOf(user1)).to.be.bignumber.equal('2000'); + expect(await this.vault.balanceOf(user2)).to.be.bignumber.equal('0'); + expect(await this.vault.convertToAssets(await this.vault.balanceOf(user1))).to.be.bignumber.equal('2000'); + expect(await this.vault.convertToAssets(await this.vault.balanceOf(user2))).to.be.bignumber.equal('0'); + expect(await this.vault.totalSupply()).to.be.bignumber.equal('2000'); + expect(await this.vault.totalAssets()).to.be.bignumber.equal('2000'); + } + + // 2. Bob deposits 4000 tokens (mints 4000 shares) + { + const { tx } = await this.vault.mint(4000, user2, { from: user2 }); + expectEvent.inTransaction(tx, this.token, 'Transfer', { + from: user2, + to: this.vault.address, + value: '4000', + }); + expectEvent.inTransaction(tx, this.vault, 'Transfer', { + from: constants.ZERO_ADDRESS, + to: user2, + value: '4000', + }); + + expect(await this.vault.previewDeposit(4000)).to.be.bignumber.equal('4000'); + expect(await this.vault.balanceOf(user1)).to.be.bignumber.equal('2000'); + expect(await this.vault.balanceOf(user2)).to.be.bignumber.equal('4000'); + expect(await this.vault.convertToAssets(await this.vault.balanceOf(user1))).to.be.bignumber.equal('2000'); + expect(await this.vault.convertToAssets(await this.vault.balanceOf(user2))).to.be.bignumber.equal('4000'); + expect(await this.vault.totalSupply()).to.be.bignumber.equal('6000'); + expect(await this.vault.totalAssets()).to.be.bignumber.equal('6000'); + } + + // 3. Vault mutates by +3000 tokens (simulated yield returned from strategy) + await this.token.$_mint(this.vault.address, 3000); + + expect(await this.vault.balanceOf(user1)).to.be.bignumber.equal('2000'); + expect(await this.vault.balanceOf(user2)).to.be.bignumber.equal('4000'); + expect(await this.vault.convertToAssets(await this.vault.balanceOf(user1))).to.be.bignumber.equal('3000'); + expect(await this.vault.convertToAssets(await this.vault.balanceOf(user2))).to.be.bignumber.equal('6000'); + expect(await this.vault.totalSupply()).to.be.bignumber.equal('6000'); + expect(await this.vault.totalAssets()).to.be.bignumber.equal('9000'); + + // 4. Alice deposits 2000 tokens (mints 1333 shares) + { + const { tx } = await this.vault.deposit(2000, user1, { from: user1 }); + expectEvent.inTransaction(tx, this.token, 'Transfer', { + from: user1, + to: this.vault.address, + value: '2000', + }); + expectEvent.inTransaction(tx, this.vault, 'Transfer', { + from: constants.ZERO_ADDRESS, + to: user1, + value: '1333', + }); + + expect(await this.vault.balanceOf(user1)).to.be.bignumber.equal('3333'); + expect(await this.vault.balanceOf(user2)).to.be.bignumber.equal('4000'); + expect(await this.vault.convertToAssets(await this.vault.balanceOf(user1))).to.be.bignumber.equal('4999'); + expect(await this.vault.convertToAssets(await this.vault.balanceOf(user2))).to.be.bignumber.equal('6000'); + expect(await this.vault.totalSupply()).to.be.bignumber.equal('7333'); + expect(await this.vault.totalAssets()).to.be.bignumber.equal('11000'); + } + + // 5. Bob mints 2000 shares (costs 3001 assets) + // NOTE: Bob's assets spent got rounded up + // NOTE: Alices's vault assets got rounded up + { + const { tx } = await this.vault.mint(2000, user2, { from: user2 }); + expectEvent.inTransaction(tx, this.token, 'Transfer', { + from: user2, + to: this.vault.address, + value: '3001', + }); + expectEvent.inTransaction(tx, this.vault, 'Transfer', { + from: constants.ZERO_ADDRESS, + to: user2, + value: '2000', + }); + + expect(await this.vault.balanceOf(user1)).to.be.bignumber.equal('3333'); + expect(await this.vault.balanceOf(user2)).to.be.bignumber.equal('6000'); + expect(await this.vault.convertToAssets(await this.vault.balanceOf(user1))).to.be.bignumber.equal('5000'); + expect(await this.vault.convertToAssets(await this.vault.balanceOf(user2))).to.be.bignumber.equal('9000'); + expect(await this.vault.totalSupply()).to.be.bignumber.equal('9333'); + expect(await this.vault.totalAssets()).to.be.bignumber.equal('14001'); + } + + // 6. Vault mutates by +3000 tokens + // NOTE: Vault holds 17001 tokens, but sum of assetsOf() is 17000. + await this.token.$_mint(this.vault.address, 3000); + + expect(await this.vault.balanceOf(user1)).to.be.bignumber.equal('3333'); + expect(await this.vault.balanceOf(user2)).to.be.bignumber.equal('6000'); + expect(await this.vault.convertToAssets(await this.vault.balanceOf(user1))).to.be.bignumber.equal('6071'); + expect(await this.vault.convertToAssets(await this.vault.balanceOf(user2))).to.be.bignumber.equal('10929'); + expect(await this.vault.totalSupply()).to.be.bignumber.equal('9333'); + expect(await this.vault.totalAssets()).to.be.bignumber.equal('17001'); + + // 7. Alice redeem 1333 shares (2428 assets) + { + const { tx } = await this.vault.redeem(1333, user1, user1, { from: user1 }); + expectEvent.inTransaction(tx, this.vault, 'Transfer', { + from: user1, + to: constants.ZERO_ADDRESS, + value: '1333', + }); + expectEvent.inTransaction(tx, this.token, 'Transfer', { + from: this.vault.address, + to: user1, + value: '2428', + }); + + expect(await this.vault.balanceOf(user1)).to.be.bignumber.equal('2000'); + expect(await this.vault.balanceOf(user2)).to.be.bignumber.equal('6000'); + expect(await this.vault.convertToAssets(await this.vault.balanceOf(user1))).to.be.bignumber.equal('3643'); + expect(await this.vault.convertToAssets(await this.vault.balanceOf(user2))).to.be.bignumber.equal('10929'); + expect(await this.vault.totalSupply()).to.be.bignumber.equal('8000'); + expect(await this.vault.totalAssets()).to.be.bignumber.equal('14573'); + } + + // 8. Bob withdraws 2929 assets (1608 shares) + { + const { tx } = await this.vault.withdraw(2929, user2, user2, { from: user2 }); + expectEvent.inTransaction(tx, this.vault, 'Transfer', { + from: user2, + to: constants.ZERO_ADDRESS, + value: '1608', + }); + expectEvent.inTransaction(tx, this.token, 'Transfer', { + from: this.vault.address, + to: user2, + value: '2929', + }); + + expect(await this.vault.balanceOf(user1)).to.be.bignumber.equal('2000'); + expect(await this.vault.balanceOf(user2)).to.be.bignumber.equal('4392'); + expect(await this.vault.convertToAssets(await this.vault.balanceOf(user1))).to.be.bignumber.equal('3643'); + expect(await this.vault.convertToAssets(await this.vault.balanceOf(user2))).to.be.bignumber.equal('8000'); + expect(await this.vault.totalSupply()).to.be.bignumber.equal('6392'); + expect(await this.vault.totalAssets()).to.be.bignumber.equal('11644'); + } + + // 9. Alice withdraws 3643 assets (2000 shares) + // NOTE: Bob's assets have been rounded back up + { + const { tx } = await this.vault.withdraw(3643, user1, user1, { from: user1 }); + expectEvent.inTransaction(tx, this.vault, 'Transfer', { + from: user1, + to: constants.ZERO_ADDRESS, + value: '2000', + }); + expectEvent.inTransaction(tx, this.token, 'Transfer', { + from: this.vault.address, + to: user1, + value: '3643', + }); + + expect(await this.vault.balanceOf(user1)).to.be.bignumber.equal('0'); + expect(await this.vault.balanceOf(user2)).to.be.bignumber.equal('4392'); + expect(await this.vault.convertToAssets(await this.vault.balanceOf(user1))).to.be.bignumber.equal('0'); + expect(await this.vault.convertToAssets(await this.vault.balanceOf(user2))).to.be.bignumber.equal('8001'); + expect(await this.vault.totalSupply()).to.be.bignumber.equal('4392'); + expect(await this.vault.totalAssets()).to.be.bignumber.equal('8001'); + } + + // 10. Bob redeem 4392 shares (8001 tokens) + { + const { tx } = await this.vault.redeem(4392, user2, user2, { from: user2 }); + expectEvent.inTransaction(tx, this.vault, 'Transfer', { + from: user2, + to: constants.ZERO_ADDRESS, + value: '4392', + }); + expectEvent.inTransaction(tx, this.token, 'Transfer', { + from: this.vault.address, + to: user2, + value: '8001', + }); + + expect(await this.vault.balanceOf(user1)).to.be.bignumber.equal('0'); + expect(await this.vault.balanceOf(user2)).to.be.bignumber.equal('0'); + expect(await this.vault.convertToAssets(await this.vault.balanceOf(user1))).to.be.bignumber.equal('0'); + expect(await this.vault.convertToAssets(await this.vault.balanceOf(user2))).to.be.bignumber.equal('0'); + expect(await this.vault.totalSupply()).to.be.bignumber.equal('0'); + expect(await this.vault.totalAssets()).to.be.bignumber.equal('0'); + } + }); +}); diff --git a/lib/openzeppelin-contracts/test/token/ERC20/extensions/draft-ERC20Permit.test.js b/lib/openzeppelin-contracts/test/token/ERC20/extensions/draft-ERC20Permit.test.js new file mode 100644 index 0000000..eb67378 --- /dev/null +++ b/lib/openzeppelin-contracts/test/token/ERC20/extensions/draft-ERC20Permit.test.js @@ -0,0 +1,103 @@ +/* eslint-disable */ + +const { BN, constants, expectRevert, time } = require('@openzeppelin/test-helpers'); +const { expect } = require('chai'); +const { MAX_UINT256 } = constants; + +const { fromRpcSig } = require('ethereumjs-util'); +const ethSigUtil = require('eth-sig-util'); +const Wallet = require('ethereumjs-wallet').default; + +const ERC20Permit = artifacts.require('$ERC20Permit'); + +const { EIP712Domain, Permit, domainSeparator } = require('../../../helpers/eip712'); +const { getChainId } = require('../../../helpers/chainid'); + +contract('ERC20Permit', function (accounts) { + const [initialHolder, spender] = accounts; + + const name = 'My Token'; + const symbol = 'MTKN'; + const version = '1'; + + const initialSupply = new BN(100); + + beforeEach(async function () { + this.chainId = await getChainId(); + + this.token = await ERC20Permit.new(name, symbol, name); + await this.token.$_mint(initialHolder, initialSupply); + }); + + it('initial nonce is 0', async function () { + expect(await this.token.nonces(initialHolder)).to.be.bignumber.equal('0'); + }); + + it('domain separator', async function () { + expect(await this.token.DOMAIN_SEPARATOR()).to.equal( + await domainSeparator({ name, version, chainId: this.chainId, verifyingContract: this.token.address }), + ); + }); + + describe('permit', function () { + const wallet = Wallet.generate(); + + const owner = wallet.getAddressString(); + const value = new BN(42); + const nonce = 0; + const maxDeadline = MAX_UINT256; + + const buildData = (chainId, verifyingContract, deadline = maxDeadline) => ({ + primaryType: 'Permit', + types: { EIP712Domain, Permit }, + domain: { name, version, chainId, verifyingContract }, + message: { owner, spender, value, nonce, deadline }, + }); + + it('accepts owner signature', async function () { + const data = buildData(this.chainId, this.token.address); + const signature = ethSigUtil.signTypedMessage(wallet.getPrivateKey(), { data }); + const { v, r, s } = fromRpcSig(signature); + + await this.token.permit(owner, spender, value, maxDeadline, v, r, s); + + expect(await this.token.nonces(owner)).to.be.bignumber.equal('1'); + expect(await this.token.allowance(owner, spender)).to.be.bignumber.equal(value); + }); + + it('rejects reused signature', async function () { + const data = buildData(this.chainId, this.token.address); + const signature = ethSigUtil.signTypedMessage(wallet.getPrivateKey(), { data }); + const { v, r, s } = fromRpcSig(signature); + + await this.token.permit(owner, spender, value, maxDeadline, v, r, s); + + await expectRevert( + this.token.permit(owner, spender, value, maxDeadline, v, r, s), + 'ERC20Permit: invalid signature', + ); + }); + + it('rejects other signature', async function () { + const otherWallet = Wallet.generate(); + const data = buildData(this.chainId, this.token.address); + const signature = ethSigUtil.signTypedMessage(otherWallet.getPrivateKey(), { data }); + const { v, r, s } = fromRpcSig(signature); + + await expectRevert( + this.token.permit(owner, spender, value, maxDeadline, v, r, s), + 'ERC20Permit: invalid signature', + ); + }); + + it('rejects expired permit', async function () { + const deadline = (await time.latest()) - time.duration.weeks(1); + + const data = buildData(this.chainId, this.token.address, deadline); + const signature = ethSigUtil.signTypedMessage(wallet.getPrivateKey(), { data }); + const { v, r, s } = fromRpcSig(signature); + + await expectRevert(this.token.permit(owner, spender, value, deadline, v, r, s), 'ERC20Permit: expired deadline'); + }); + }); +}); diff --git a/lib/openzeppelin-contracts/test/token/ERC20/presets/ERC20PresetFixedSupply.test.js b/lib/openzeppelin-contracts/test/token/ERC20/presets/ERC20PresetFixedSupply.test.js new file mode 100644 index 0000000..f1d0b53 --- /dev/null +++ b/lib/openzeppelin-contracts/test/token/ERC20/presets/ERC20PresetFixedSupply.test.js @@ -0,0 +1,42 @@ +const { BN, constants, expectEvent } = require('@openzeppelin/test-helpers'); +const { ZERO_ADDRESS } = constants; + +const { expect } = require('chai'); + +const ERC20PresetFixedSupply = artifacts.require('ERC20PresetFixedSupply'); + +contract('ERC20PresetFixedSupply', function (accounts) { + const [deployer, owner] = accounts; + + const name = 'PresetFixedSupply'; + const symbol = 'PFS'; + + const initialSupply = new BN('50000'); + const amount = new BN('10000'); + + before(async function () { + this.token = await ERC20PresetFixedSupply.new(name, symbol, initialSupply, owner, { from: deployer }); + }); + + it('deployer has the balance equal to initial supply', async function () { + expect(await this.token.balanceOf(owner)).to.be.bignumber.equal(initialSupply); + }); + + it('total supply is equal to initial supply', async function () { + expect(await this.token.totalSupply()).to.be.bignumber.equal(initialSupply); + }); + + describe('burning', function () { + it('holders can burn their tokens', async function () { + const remainingBalance = initialSupply.sub(amount); + const receipt = await this.token.burn(amount, { from: owner }); + expectEvent(receipt, 'Transfer', { from: owner, to: ZERO_ADDRESS, value: amount }); + expect(await this.token.balanceOf(owner)).to.be.bignumber.equal(remainingBalance); + }); + + it('decrements totalSupply', async function () { + const expectedSupply = initialSupply.sub(amount); + expect(await this.token.totalSupply()).to.be.bignumber.equal(expectedSupply); + }); + }); +}); diff --git a/lib/openzeppelin-contracts/test/token/ERC20/presets/ERC20PresetMinterPauser.test.js b/lib/openzeppelin-contracts/test/token/ERC20/presets/ERC20PresetMinterPauser.test.js new file mode 100644 index 0000000..ad9ff29 --- /dev/null +++ b/lib/openzeppelin-contracts/test/token/ERC20/presets/ERC20PresetMinterPauser.test.js @@ -0,0 +1,110 @@ +const { BN, constants, expectEvent, expectRevert } = require('@openzeppelin/test-helpers'); +const { ZERO_ADDRESS } = constants; + +const { expect } = require('chai'); + +const ERC20PresetMinterPauser = artifacts.require('ERC20PresetMinterPauser'); + +contract('ERC20PresetMinterPauser', function (accounts) { + const [deployer, other] = accounts; + + const name = 'MinterPauserToken'; + const symbol = 'DRT'; + + const amount = new BN('5000'); + + const DEFAULT_ADMIN_ROLE = '0x0000000000000000000000000000000000000000000000000000000000000000'; + const MINTER_ROLE = web3.utils.soliditySha3('MINTER_ROLE'); + const PAUSER_ROLE = web3.utils.soliditySha3('PAUSER_ROLE'); + + beforeEach(async function () { + this.token = await ERC20PresetMinterPauser.new(name, symbol, { from: deployer }); + }); + + it('deployer has the default admin role', async function () { + expect(await this.token.getRoleMemberCount(DEFAULT_ADMIN_ROLE)).to.be.bignumber.equal('1'); + expect(await this.token.getRoleMember(DEFAULT_ADMIN_ROLE, 0)).to.equal(deployer); + }); + + it('deployer has the minter role', async function () { + expect(await this.token.getRoleMemberCount(MINTER_ROLE)).to.be.bignumber.equal('1'); + expect(await this.token.getRoleMember(MINTER_ROLE, 0)).to.equal(deployer); + }); + + it('deployer has the pauser role', async function () { + expect(await this.token.getRoleMemberCount(PAUSER_ROLE)).to.be.bignumber.equal('1'); + expect(await this.token.getRoleMember(PAUSER_ROLE, 0)).to.equal(deployer); + }); + + it('minter and pauser role admin is the default admin', async function () { + expect(await this.token.getRoleAdmin(MINTER_ROLE)).to.equal(DEFAULT_ADMIN_ROLE); + expect(await this.token.getRoleAdmin(PAUSER_ROLE)).to.equal(DEFAULT_ADMIN_ROLE); + }); + + describe('minting', function () { + it('deployer can mint tokens', async function () { + const receipt = await this.token.mint(other, amount, { from: deployer }); + expectEvent(receipt, 'Transfer', { from: ZERO_ADDRESS, to: other, value: amount }); + + expect(await this.token.balanceOf(other)).to.be.bignumber.equal(amount); + }); + + it('other accounts cannot mint tokens', async function () { + await expectRevert( + this.token.mint(other, amount, { from: other }), + 'ERC20PresetMinterPauser: must have minter role to mint', + ); + }); + }); + + describe('pausing', function () { + it('deployer can pause', async function () { + const receipt = await this.token.pause({ from: deployer }); + expectEvent(receipt, 'Paused', { account: deployer }); + + expect(await this.token.paused()).to.equal(true); + }); + + it('deployer can unpause', async function () { + await this.token.pause({ from: deployer }); + + const receipt = await this.token.unpause({ from: deployer }); + expectEvent(receipt, 'Unpaused', { account: deployer }); + + expect(await this.token.paused()).to.equal(false); + }); + + it('cannot mint while paused', async function () { + await this.token.pause({ from: deployer }); + + await expectRevert( + this.token.mint(other, amount, { from: deployer }), + 'ERC20Pausable: token transfer while paused', + ); + }); + + it('other accounts cannot pause', async function () { + await expectRevert(this.token.pause({ from: other }), 'ERC20PresetMinterPauser: must have pauser role to pause'); + }); + + it('other accounts cannot unpause', async function () { + await this.token.pause({ from: deployer }); + + await expectRevert( + this.token.unpause({ from: other }), + 'ERC20PresetMinterPauser: must have pauser role to unpause', + ); + }); + }); + + describe('burning', function () { + it('holders can burn their tokens', async function () { + await this.token.mint(other, amount, { from: deployer }); + + const receipt = await this.token.burn(amount.subn(1), { from: other }); + expectEvent(receipt, 'Transfer', { from: other, to: ZERO_ADDRESS, value: amount.subn(1) }); + + expect(await this.token.balanceOf(other)).to.be.bignumber.equal('1'); + }); + }); +}); diff --git a/lib/openzeppelin-contracts/test/token/ERC20/utils/SafeERC20.test.js b/lib/openzeppelin-contracts/test/token/ERC20/utils/SafeERC20.test.js new file mode 100644 index 0000000..878989c --- /dev/null +++ b/lib/openzeppelin-contracts/test/token/ERC20/utils/SafeERC20.test.js @@ -0,0 +1,266 @@ +const { constants, expectRevert } = require('@openzeppelin/test-helpers'); + +const SafeERC20 = artifacts.require('$SafeERC20'); +const ERC20ReturnFalseMock = artifacts.require('ERC20ReturnFalseMock'); +const ERC20ReturnTrueMock = artifacts.require('ERC20ReturnTrueMock'); +const ERC20NoReturnMock = artifacts.require('ERC20NoReturnMock'); +const ERC20PermitNoRevertMock = artifacts.require('ERC20PermitNoRevertMock'); + +const { EIP712Domain, Permit } = require('../../../helpers/eip712'); +const { getChainId } = require('../../../helpers/chainid'); + +const { fromRpcSig } = require('ethereumjs-util'); +const ethSigUtil = require('eth-sig-util'); +const Wallet = require('ethereumjs-wallet').default; + +contract('SafeERC20', function (accounts) { + const [hasNoCode] = accounts; + + before(async function () { + this.mock = await SafeERC20.new(); + }); + + describe('with address that has no contract code', function () { + beforeEach(async function () { + this.token = { address: hasNoCode }; + }); + + shouldRevertOnAllCalls('Address: call to non-contract'); + }); + + describe('with token that returns false on all calls', function () { + beforeEach(async function () { + this.token = await ERC20ReturnFalseMock.new(); + }); + + shouldRevertOnAllCalls('SafeERC20: ERC20 operation did not succeed'); + }); + + describe('with token that returns true on all calls', function () { + beforeEach(async function () { + this.token = await ERC20ReturnTrueMock.new(); + }); + + shouldOnlyRevertOnErrors(); + }); + + describe('with token that returns no boolean values', function () { + beforeEach(async function () { + this.token = await ERC20NoReturnMock.new(); + }); + + shouldOnlyRevertOnErrors(); + }); + + describe("with token that doesn't revert on invalid permit", function () { + const wallet = Wallet.generate(); + const owner = wallet.getAddressString(); + const spender = hasNoCode; + + beforeEach(async function () { + const chainId = await getChainId(); + + this.token = await ERC20PermitNoRevertMock.new(); + + this.data = { + primaryType: 'Permit', + types: { EIP712Domain, Permit }, + domain: { name: 'ERC20PermitNoRevertMock', version: '1', chainId, verifyingContract: this.token.address }, + message: { owner, spender, value: '42', nonce: '0', deadline: constants.MAX_UINT256 }, + }; + this.signature = fromRpcSig(ethSigUtil.signTypedMessage(wallet.getPrivateKey(), { data: this.data })); + }); + + it('accepts owner signature', async function () { + expect(await this.token.nonces(owner)).to.be.bignumber.equal('0'); + expect(await this.token.allowance(owner, spender)).to.be.bignumber.equal('0'); + + await this.mock.$safePermit( + this.token.address, + this.data.message.owner, + this.data.message.spender, + this.data.message.value, + this.data.message.deadline, + this.signature.v, + this.signature.r, + this.signature.s, + ); + + expect(await this.token.nonces(owner)).to.be.bignumber.equal('1'); + expect(await this.token.allowance(owner, spender)).to.be.bignumber.equal(this.data.message.value); + }); + + it('revert on reused signature', async function () { + expect(await this.token.nonces(owner)).to.be.bignumber.equal('0'); + // use valid signature and consume nounce + await this.mock.$safePermit( + this.token.address, + this.data.message.owner, + this.data.message.spender, + this.data.message.value, + this.data.message.deadline, + this.signature.v, + this.signature.r, + this.signature.s, + ); + expect(await this.token.nonces(owner)).to.be.bignumber.equal('1'); + // invalid call does not revert for this token implementation + await this.token.permit( + this.data.message.owner, + this.data.message.spender, + this.data.message.value, + this.data.message.deadline, + this.signature.v, + this.signature.r, + this.signature.s, + ); + expect(await this.token.nonces(owner)).to.be.bignumber.equal('1'); + // invalid call revert when called through the SafeERC20 library + await expectRevert( + this.mock.$safePermit( + this.token.address, + this.data.message.owner, + this.data.message.spender, + this.data.message.value, + this.data.message.deadline, + this.signature.v, + this.signature.r, + this.signature.s, + ), + 'SafeERC20: permit did not succeed', + ); + expect(await this.token.nonces(owner)).to.be.bignumber.equal('1'); + }); + + it('revert on invalid signature', async function () { + // signature that is not valid for owner + const invalidSignature = { + v: 27, + r: '0x71753dc5ecb5b4bfc0e3bc530d79ce5988760ed3f3a234c86a5546491f540775', + s: '0x0049cedee5aed990aabed5ad6a9f6e3c565b63379894b5fa8b512eb2b79e485d', + }; + + // invalid call does not revert for this token implementation + await this.token.permit( + this.data.message.owner, + this.data.message.spender, + this.data.message.value, + this.data.message.deadline, + invalidSignature.v, + invalidSignature.r, + invalidSignature.s, + ); + + // invalid call revert when called through the SafeERC20 library + await expectRevert( + this.mock.$safePermit( + this.token.address, + this.data.message.owner, + this.data.message.spender, + this.data.message.value, + this.data.message.deadline, + invalidSignature.v, + invalidSignature.r, + invalidSignature.s, + ), + 'SafeERC20: permit did not succeed', + ); + }); + }); +}); + +function shouldRevertOnAllCalls(reason) { + it('reverts on transfer', async function () { + await expectRevert(this.mock.$safeTransfer(this.token.address, constants.ZERO_ADDRESS, 0), reason); + }); + + it('reverts on transferFrom', async function () { + await expectRevert( + this.mock.$safeTransferFrom(this.token.address, this.mock.address, constants.ZERO_ADDRESS, 0), + reason, + ); + }); + + it('reverts on approve', async function () { + await expectRevert(this.mock.$safeApprove(this.token.address, constants.ZERO_ADDRESS, 0), reason); + }); + + it('reverts on increaseAllowance', async function () { + // [TODO] make sure it's reverting for the right reason + await expectRevert.unspecified(this.mock.$safeIncreaseAllowance(this.token.address, constants.ZERO_ADDRESS, 0)); + }); + + it('reverts on decreaseAllowance', async function () { + // [TODO] make sure it's reverting for the right reason + await expectRevert.unspecified(this.mock.$safeDecreaseAllowance(this.token.address, constants.ZERO_ADDRESS, 0)); + }); +} + +function shouldOnlyRevertOnErrors() { + it("doesn't revert on transfer", async function () { + await this.mock.$safeTransfer(this.token.address, constants.ZERO_ADDRESS, 0); + }); + + it("doesn't revert on transferFrom", async function () { + await this.mock.$safeTransferFrom(this.token.address, this.mock.address, constants.ZERO_ADDRESS, 0); + }); + + describe('approvals', function () { + context('with zero allowance', function () { + beforeEach(async function () { + await this.token.setAllowance(this.mock.address, 0); + }); + + it("doesn't revert when approving a non-zero allowance", async function () { + await this.mock.$safeApprove(this.token.address, constants.ZERO_ADDRESS, 100); + }); + + it("doesn't revert when approving a zero allowance", async function () { + await this.mock.$safeApprove(this.token.address, constants.ZERO_ADDRESS, 0); + }); + + it("doesn't revert when increasing the allowance", async function () { + await this.mock.$safeIncreaseAllowance(this.token.address, constants.ZERO_ADDRESS, 10); + }); + + it('reverts when decreasing the allowance', async function () { + await expectRevert( + this.mock.$safeDecreaseAllowance(this.token.address, constants.ZERO_ADDRESS, 10), + 'SafeERC20: decreased allowance below zero', + ); + }); + }); + + context('with non-zero allowance', function () { + beforeEach(async function () { + await this.token.setAllowance(this.mock.address, 100); + }); + + it('reverts when approving a non-zero allowance', async function () { + await expectRevert( + this.mock.$safeApprove(this.token.address, constants.ZERO_ADDRESS, 20), + 'SafeERC20: approve from non-zero to non-zero allowance', + ); + }); + + it("doesn't revert when approving a zero allowance", async function () { + await this.mock.$safeApprove(this.token.address, constants.ZERO_ADDRESS, 0); + }); + + it("doesn't revert when increasing the allowance", async function () { + await this.mock.$safeIncreaseAllowance(this.token.address, constants.ZERO_ADDRESS, 10); + }); + + it("doesn't revert when decreasing the allowance to a positive value", async function () { + await this.mock.$safeDecreaseAllowance(this.token.address, constants.ZERO_ADDRESS, 50); + }); + + it('reverts when decreasing the allowance to a negative value', async function () { + await expectRevert( + this.mock.$safeDecreaseAllowance(this.token.address, constants.ZERO_ADDRESS, 200), + 'SafeERC20: decreased allowance below zero', + ); + }); + }); + }); +} diff --git a/lib/openzeppelin-contracts/test/token/ERC20/utils/TokenTimelock.test.js b/lib/openzeppelin-contracts/test/token/ERC20/utils/TokenTimelock.test.js new file mode 100644 index 0000000..22e8071 --- /dev/null +++ b/lib/openzeppelin-contracts/test/token/ERC20/utils/TokenTimelock.test.js @@ -0,0 +1,71 @@ +const { BN, expectRevert, time } = require('@openzeppelin/test-helpers'); + +const { expect } = require('chai'); + +const ERC20 = artifacts.require('$ERC20'); +const TokenTimelock = artifacts.require('TokenTimelock'); + +contract('TokenTimelock', function (accounts) { + const [beneficiary] = accounts; + + const name = 'My Token'; + const symbol = 'MTKN'; + + const amount = new BN(100); + + context('with token', function () { + beforeEach(async function () { + this.token = await ERC20.new(name, symbol); + }); + + it('rejects a release time in the past', async function () { + const pastReleaseTime = (await time.latest()).sub(time.duration.years(1)); + await expectRevert( + TokenTimelock.new(this.token.address, beneficiary, pastReleaseTime), + 'TokenTimelock: release time is before current time', + ); + }); + + context('once deployed', function () { + beforeEach(async function () { + this.releaseTime = (await time.latest()).add(time.duration.years(1)); + this.timelock = await TokenTimelock.new(this.token.address, beneficiary, this.releaseTime); + await this.token.$_mint(this.timelock.address, amount); + }); + + it('can get state', async function () { + expect(await this.timelock.token()).to.equal(this.token.address); + expect(await this.timelock.beneficiary()).to.equal(beneficiary); + expect(await this.timelock.releaseTime()).to.be.bignumber.equal(this.releaseTime); + }); + + it('cannot be released before time limit', async function () { + await expectRevert(this.timelock.release(), 'TokenTimelock: current time is before release time'); + }); + + it('cannot be released just before time limit', async function () { + await time.increaseTo(this.releaseTime.sub(time.duration.seconds(3))); + await expectRevert(this.timelock.release(), 'TokenTimelock: current time is before release time'); + }); + + it('can be released just after limit', async function () { + await time.increaseTo(this.releaseTime.add(time.duration.seconds(1))); + await this.timelock.release(); + expect(await this.token.balanceOf(beneficiary)).to.be.bignumber.equal(amount); + }); + + it('can be released after time limit', async function () { + await time.increaseTo(this.releaseTime.add(time.duration.years(1))); + await this.timelock.release(); + expect(await this.token.balanceOf(beneficiary)).to.be.bignumber.equal(amount); + }); + + it('cannot be released twice', async function () { + await time.increaseTo(this.releaseTime.add(time.duration.years(1))); + await this.timelock.release(); + await expectRevert(this.timelock.release(), 'TokenTimelock: no tokens to release'); + expect(await this.token.balanceOf(beneficiary)).to.be.bignumber.equal(amount); + }); + }); + }); +}); diff --git a/lib/openzeppelin-contracts/test/token/ERC721/ERC721.behavior.js b/lib/openzeppelin-contracts/test/token/ERC721/ERC721.behavior.js new file mode 100644 index 0000000..c094795 --- /dev/null +++ b/lib/openzeppelin-contracts/test/token/ERC721/ERC721.behavior.js @@ -0,0 +1,892 @@ +const { BN, constants, expectEvent, expectRevert } = require('@openzeppelin/test-helpers'); +const { expect } = require('chai'); +const { ZERO_ADDRESS } = constants; + +const { shouldSupportInterfaces } = require('../../utils/introspection/SupportsInterface.behavior'); + +const ERC721ReceiverMock = artifacts.require('ERC721ReceiverMock'); + +const Error = ['None', 'RevertWithMessage', 'RevertWithoutMessage', 'Panic'].reduce( + (acc, entry, idx) => Object.assign({ [entry]: idx }, acc), + {}, +); + +const firstTokenId = new BN('5042'); +const secondTokenId = new BN('79217'); +const nonExistentTokenId = new BN('13'); +const fourthTokenId = new BN(4); +const baseURI = 'https://api.example.com/v1/'; + +const RECEIVER_MAGIC_VALUE = '0x150b7a02'; + +function shouldBehaveLikeERC721(errorPrefix, owner, newOwner, approved, anotherApproved, operator, other) { + shouldSupportInterfaces(['ERC165', 'ERC721']); + + context('with minted tokens', function () { + beforeEach(async function () { + await this.token.$_mint(owner, firstTokenId); + await this.token.$_mint(owner, secondTokenId); + this.toWhom = other; // default to other for toWhom in context-dependent tests + }); + + describe('balanceOf', function () { + context('when the given address owns some tokens', function () { + it('returns the amount of tokens owned by the given address', async function () { + expect(await this.token.balanceOf(owner)).to.be.bignumber.equal('2'); + }); + }); + + context('when the given address does not own any tokens', function () { + it('returns 0', async function () { + expect(await this.token.balanceOf(other)).to.be.bignumber.equal('0'); + }); + }); + + context('when querying the zero address', function () { + it('throws', async function () { + await expectRevert(this.token.balanceOf(ZERO_ADDRESS), 'ERC721: address zero is not a valid owner'); + }); + }); + }); + + describe('ownerOf', function () { + context('when the given token ID was tracked by this token', function () { + const tokenId = firstTokenId; + + it('returns the owner of the given token ID', async function () { + expect(await this.token.ownerOf(tokenId)).to.be.equal(owner); + }); + }); + + context('when the given token ID was not tracked by this token', function () { + const tokenId = nonExistentTokenId; + + it('reverts', async function () { + await expectRevert(this.token.ownerOf(tokenId), 'ERC721: invalid token ID'); + }); + }); + }); + + describe('transfers', function () { + const tokenId = firstTokenId; + const data = '0x42'; + + let receipt = null; + + beforeEach(async function () { + await this.token.approve(approved, tokenId, { from: owner }); + await this.token.setApprovalForAll(operator, true, { from: owner }); + }); + + const transferWasSuccessful = function ({ owner, tokenId }) { + it('transfers the ownership of the given token ID to the given address', async function () { + expect(await this.token.ownerOf(tokenId)).to.be.equal(this.toWhom); + }); + + it('emits a Transfer event', async function () { + expectEvent(receipt, 'Transfer', { from: owner, to: this.toWhom, tokenId: tokenId }); + }); + + it('clears the approval for the token ID', async function () { + expect(await this.token.getApproved(tokenId)).to.be.equal(ZERO_ADDRESS); + }); + + it('adjusts owners balances', async function () { + expect(await this.token.balanceOf(owner)).to.be.bignumber.equal('1'); + }); + + it('adjusts owners tokens by index', async function () { + if (!this.token.tokenOfOwnerByIndex) return; + + expect(await this.token.tokenOfOwnerByIndex(this.toWhom, 0)).to.be.bignumber.equal(tokenId); + + expect(await this.token.tokenOfOwnerByIndex(owner, 0)).to.be.bignumber.not.equal(tokenId); + }); + }; + + const shouldTransferTokensByUsers = function (transferFunction) { + context('when called by the owner', function () { + beforeEach(async function () { + receipt = await transferFunction.call(this, owner, this.toWhom, tokenId, { from: owner }); + }); + transferWasSuccessful({ owner, tokenId, approved }); + }); + + context('when called by the approved individual', function () { + beforeEach(async function () { + receipt = await transferFunction.call(this, owner, this.toWhom, tokenId, { from: approved }); + }); + transferWasSuccessful({ owner, tokenId, approved }); + }); + + context('when called by the operator', function () { + beforeEach(async function () { + receipt = await transferFunction.call(this, owner, this.toWhom, tokenId, { from: operator }); + }); + transferWasSuccessful({ owner, tokenId, approved }); + }); + + context('when called by the owner without an approved user', function () { + beforeEach(async function () { + await this.token.approve(ZERO_ADDRESS, tokenId, { from: owner }); + receipt = await transferFunction.call(this, owner, this.toWhom, tokenId, { from: operator }); + }); + transferWasSuccessful({ owner, tokenId, approved: null }); + }); + + context('when sent to the owner', function () { + beforeEach(async function () { + receipt = await transferFunction.call(this, owner, owner, tokenId, { from: owner }); + }); + + it('keeps ownership of the token', async function () { + expect(await this.token.ownerOf(tokenId)).to.be.equal(owner); + }); + + it('clears the approval for the token ID', async function () { + expect(await this.token.getApproved(tokenId)).to.be.equal(ZERO_ADDRESS); + }); + + it('emits only a transfer event', async function () { + expectEvent(receipt, 'Transfer', { + from: owner, + to: owner, + tokenId: tokenId, + }); + }); + + it('keeps the owner balance', async function () { + expect(await this.token.balanceOf(owner)).to.be.bignumber.equal('2'); + }); + + it('keeps same tokens by index', async function () { + if (!this.token.tokenOfOwnerByIndex) return; + const tokensListed = await Promise.all([0, 1].map(i => this.token.tokenOfOwnerByIndex(owner, i))); + expect(tokensListed.map(t => t.toNumber())).to.have.members([ + firstTokenId.toNumber(), + secondTokenId.toNumber(), + ]); + }); + }); + + context('when the address of the previous owner is incorrect', function () { + it('reverts', async function () { + await expectRevert( + transferFunction.call(this, other, other, tokenId, { from: owner }), + 'ERC721: transfer from incorrect owner', + ); + }); + }); + + context('when the sender is not authorized for the token id', function () { + it('reverts', async function () { + await expectRevert( + transferFunction.call(this, owner, other, tokenId, { from: other }), + 'ERC721: caller is not token owner or approved', + ); + }); + }); + + context('when the given token ID does not exist', function () { + it('reverts', async function () { + await expectRevert( + transferFunction.call(this, owner, other, nonExistentTokenId, { from: owner }), + 'ERC721: invalid token ID', + ); + }); + }); + + context('when the address to transfer the token to is the zero address', function () { + it('reverts', async function () { + await expectRevert( + transferFunction.call(this, owner, ZERO_ADDRESS, tokenId, { from: owner }), + 'ERC721: transfer to the zero address', + ); + }); + }); + }; + + describe('via transferFrom', function () { + shouldTransferTokensByUsers(function (from, to, tokenId, opts) { + return this.token.transferFrom(from, to, tokenId, opts); + }); + }); + + describe('via safeTransferFrom', function () { + const safeTransferFromWithData = function (from, to, tokenId, opts) { + return this.token.methods['safeTransferFrom(address,address,uint256,bytes)'](from, to, tokenId, data, opts); + }; + + const safeTransferFromWithoutData = function (from, to, tokenId, opts) { + return this.token.methods['safeTransferFrom(address,address,uint256)'](from, to, tokenId, opts); + }; + + const shouldTransferSafely = function (transferFun, data) { + describe('to a user account', function () { + shouldTransferTokensByUsers(transferFun); + }); + + describe('to a valid receiver contract', function () { + beforeEach(async function () { + this.receiver = await ERC721ReceiverMock.new(RECEIVER_MAGIC_VALUE, Error.None); + this.toWhom = this.receiver.address; + }); + + shouldTransferTokensByUsers(transferFun); + + it('calls onERC721Received', async function () { + const receipt = await transferFun.call(this, owner, this.receiver.address, tokenId, { from: owner }); + + await expectEvent.inTransaction(receipt.tx, ERC721ReceiverMock, 'Received', { + operator: owner, + from: owner, + tokenId: tokenId, + data: data, + }); + }); + + it('calls onERC721Received from approved', async function () { + const receipt = await transferFun.call(this, owner, this.receiver.address, tokenId, { from: approved }); + + await expectEvent.inTransaction(receipt.tx, ERC721ReceiverMock, 'Received', { + operator: approved, + from: owner, + tokenId: tokenId, + data: data, + }); + }); + + describe('with an invalid token id', function () { + it('reverts', async function () { + await expectRevert( + transferFun.call(this, owner, this.receiver.address, nonExistentTokenId, { from: owner }), + 'ERC721: invalid token ID', + ); + }); + }); + }); + }; + + describe('with data', function () { + shouldTransferSafely(safeTransferFromWithData, data); + }); + + describe('without data', function () { + shouldTransferSafely(safeTransferFromWithoutData, null); + }); + + describe('to a receiver contract returning unexpected value', function () { + it('reverts', async function () { + const invalidReceiver = await ERC721ReceiverMock.new('0x42', Error.None); + await expectRevert( + this.token.safeTransferFrom(owner, invalidReceiver.address, tokenId, { from: owner }), + 'ERC721: transfer to non ERC721Receiver implementer', + ); + }); + }); + + describe('to a receiver contract that reverts with message', function () { + it('reverts', async function () { + const revertingReceiver = await ERC721ReceiverMock.new(RECEIVER_MAGIC_VALUE, Error.RevertWithMessage); + await expectRevert( + this.token.safeTransferFrom(owner, revertingReceiver.address, tokenId, { from: owner }), + 'ERC721ReceiverMock: reverting', + ); + }); + }); + + describe('to a receiver contract that reverts without message', function () { + it('reverts', async function () { + const revertingReceiver = await ERC721ReceiverMock.new(RECEIVER_MAGIC_VALUE, Error.RevertWithoutMessage); + await expectRevert( + this.token.safeTransferFrom(owner, revertingReceiver.address, tokenId, { from: owner }), + 'ERC721: transfer to non ERC721Receiver implementer', + ); + }); + }); + + describe('to a receiver contract that panics', function () { + it('reverts', async function () { + const revertingReceiver = await ERC721ReceiverMock.new(RECEIVER_MAGIC_VALUE, Error.Panic); + await expectRevert.unspecified( + this.token.safeTransferFrom(owner, revertingReceiver.address, tokenId, { from: owner }), + ); + }); + }); + + describe('to a contract that does not implement the required function', function () { + it('reverts', async function () { + const nonReceiver = this.token; + await expectRevert( + this.token.safeTransferFrom(owner, nonReceiver.address, tokenId, { from: owner }), + 'ERC721: transfer to non ERC721Receiver implementer', + ); + }); + }); + }); + }); + + describe('safe mint', function () { + const tokenId = fourthTokenId; + const data = '0x42'; + + describe('via safeMint', function () { + // regular minting is tested in ERC721Mintable.test.js and others + it('calls onERC721Received — with data', async function () { + this.receiver = await ERC721ReceiverMock.new(RECEIVER_MAGIC_VALUE, Error.None); + const receipt = await this.token.$_safeMint(this.receiver.address, tokenId, data); + + await expectEvent.inTransaction(receipt.tx, ERC721ReceiverMock, 'Received', { + from: ZERO_ADDRESS, + tokenId: tokenId, + data: data, + }); + }); + + it('calls onERC721Received — without data', async function () { + this.receiver = await ERC721ReceiverMock.new(RECEIVER_MAGIC_VALUE, Error.None); + const receipt = await this.token.$_safeMint(this.receiver.address, tokenId); + + await expectEvent.inTransaction(receipt.tx, ERC721ReceiverMock, 'Received', { + from: ZERO_ADDRESS, + tokenId: tokenId, + }); + }); + + context('to a receiver contract returning unexpected value', function () { + it('reverts', async function () { + const invalidReceiver = await ERC721ReceiverMock.new('0x42', Error.None); + await expectRevert( + this.token.$_safeMint(invalidReceiver.address, tokenId), + 'ERC721: transfer to non ERC721Receiver implementer', + ); + }); + }); + + context('to a receiver contract that reverts with message', function () { + it('reverts', async function () { + const revertingReceiver = await ERC721ReceiverMock.new(RECEIVER_MAGIC_VALUE, Error.RevertWithMessage); + await expectRevert( + this.token.$_safeMint(revertingReceiver.address, tokenId), + 'ERC721ReceiverMock: reverting', + ); + }); + }); + + context('to a receiver contract that reverts without message', function () { + it('reverts', async function () { + const revertingReceiver = await ERC721ReceiverMock.new(RECEIVER_MAGIC_VALUE, Error.RevertWithoutMessage); + await expectRevert( + this.token.$_safeMint(revertingReceiver.address, tokenId), + 'ERC721: transfer to non ERC721Receiver implementer', + ); + }); + }); + + context('to a receiver contract that panics', function () { + it('reverts', async function () { + const revertingReceiver = await ERC721ReceiverMock.new(RECEIVER_MAGIC_VALUE, Error.Panic); + await expectRevert.unspecified(this.token.$_safeMint(revertingReceiver.address, tokenId)); + }); + }); + + context('to a contract that does not implement the required function', function () { + it('reverts', async function () { + const nonReceiver = this.token; + await expectRevert( + this.token.$_safeMint(nonReceiver.address, tokenId), + 'ERC721: transfer to non ERC721Receiver implementer', + ); + }); + }); + }); + }); + + describe('approve', function () { + const tokenId = firstTokenId; + + let receipt = null; + + const itClearsApproval = function () { + it('clears approval for the token', async function () { + expect(await this.token.getApproved(tokenId)).to.be.equal(ZERO_ADDRESS); + }); + }; + + const itApproves = function (address) { + it('sets the approval for the target address', async function () { + expect(await this.token.getApproved(tokenId)).to.be.equal(address); + }); + }; + + const itEmitsApprovalEvent = function (address) { + it('emits an approval event', async function () { + expectEvent(receipt, 'Approval', { + owner: owner, + approved: address, + tokenId: tokenId, + }); + }); + }; + + context('when clearing approval', function () { + context('when there was no prior approval', function () { + beforeEach(async function () { + receipt = await this.token.approve(ZERO_ADDRESS, tokenId, { from: owner }); + }); + + itClearsApproval(); + itEmitsApprovalEvent(ZERO_ADDRESS); + }); + + context('when there was a prior approval', function () { + beforeEach(async function () { + await this.token.approve(approved, tokenId, { from: owner }); + receipt = await this.token.approve(ZERO_ADDRESS, tokenId, { from: owner }); + }); + + itClearsApproval(); + itEmitsApprovalEvent(ZERO_ADDRESS); + }); + }); + + context('when approving a non-zero address', function () { + context('when there was no prior approval', function () { + beforeEach(async function () { + receipt = await this.token.approve(approved, tokenId, { from: owner }); + }); + + itApproves(approved); + itEmitsApprovalEvent(approved); + }); + + context('when there was a prior approval to the same address', function () { + beforeEach(async function () { + await this.token.approve(approved, tokenId, { from: owner }); + receipt = await this.token.approve(approved, tokenId, { from: owner }); + }); + + itApproves(approved); + itEmitsApprovalEvent(approved); + }); + + context('when there was a prior approval to a different address', function () { + beforeEach(async function () { + await this.token.approve(anotherApproved, tokenId, { from: owner }); + receipt = await this.token.approve(anotherApproved, tokenId, { from: owner }); + }); + + itApproves(anotherApproved); + itEmitsApprovalEvent(anotherApproved); + }); + }); + + context('when the address that receives the approval is the owner', function () { + it('reverts', async function () { + await expectRevert(this.token.approve(owner, tokenId, { from: owner }), 'ERC721: approval to current owner'); + }); + }); + + context('when the sender does not own the given token ID', function () { + it('reverts', async function () { + await expectRevert( + this.token.approve(approved, tokenId, { from: other }), + 'ERC721: approve caller is not token owner or approved', + ); + }); + }); + + context('when the sender is approved for the given token ID', function () { + it('reverts', async function () { + await this.token.approve(approved, tokenId, { from: owner }); + await expectRevert( + this.token.approve(anotherApproved, tokenId, { from: approved }), + 'ERC721: approve caller is not token owner or approved for all', + ); + }); + }); + + context('when the sender is an operator', function () { + beforeEach(async function () { + await this.token.setApprovalForAll(operator, true, { from: owner }); + receipt = await this.token.approve(approved, tokenId, { from: operator }); + }); + + itApproves(approved); + itEmitsApprovalEvent(approved); + }); + + context('when the given token ID does not exist', function () { + it('reverts', async function () { + await expectRevert( + this.token.approve(approved, nonExistentTokenId, { from: operator }), + 'ERC721: invalid token ID', + ); + }); + }); + }); + + describe('setApprovalForAll', function () { + context('when the operator willing to approve is not the owner', function () { + context('when there is no operator approval set by the sender', function () { + it('approves the operator', async function () { + await this.token.setApprovalForAll(operator, true, { from: owner }); + + expect(await this.token.isApprovedForAll(owner, operator)).to.equal(true); + }); + + it('emits an approval event', async function () { + const receipt = await this.token.setApprovalForAll(operator, true, { from: owner }); + + expectEvent(receipt, 'ApprovalForAll', { + owner: owner, + operator: operator, + approved: true, + }); + }); + }); + + context('when the operator was set as not approved', function () { + beforeEach(async function () { + await this.token.setApprovalForAll(operator, false, { from: owner }); + }); + + it('approves the operator', async function () { + await this.token.setApprovalForAll(operator, true, { from: owner }); + + expect(await this.token.isApprovedForAll(owner, operator)).to.equal(true); + }); + + it('emits an approval event', async function () { + const receipt = await this.token.setApprovalForAll(operator, true, { from: owner }); + + expectEvent(receipt, 'ApprovalForAll', { + owner: owner, + operator: operator, + approved: true, + }); + }); + + it('can unset the operator approval', async function () { + await this.token.setApprovalForAll(operator, false, { from: owner }); + + expect(await this.token.isApprovedForAll(owner, operator)).to.equal(false); + }); + }); + + context('when the operator was already approved', function () { + beforeEach(async function () { + await this.token.setApprovalForAll(operator, true, { from: owner }); + }); + + it('keeps the approval to the given address', async function () { + await this.token.setApprovalForAll(operator, true, { from: owner }); + + expect(await this.token.isApprovedForAll(owner, operator)).to.equal(true); + }); + + it('emits an approval event', async function () { + const receipt = await this.token.setApprovalForAll(operator, true, { from: owner }); + + expectEvent(receipt, 'ApprovalForAll', { + owner: owner, + operator: operator, + approved: true, + }); + }); + }); + }); + + context('when the operator is the owner', function () { + it('reverts', async function () { + await expectRevert(this.token.setApprovalForAll(owner, true, { from: owner }), 'ERC721: approve to caller'); + }); + }); + }); + + describe('getApproved', async function () { + context('when token is not minted', async function () { + it('reverts', async function () { + await expectRevert(this.token.getApproved(nonExistentTokenId), 'ERC721: invalid token ID'); + }); + }); + + context('when token has been minted ', async function () { + it('should return the zero address', async function () { + expect(await this.token.getApproved(firstTokenId)).to.be.equal(ZERO_ADDRESS); + }); + + context('when account has been approved', async function () { + beforeEach(async function () { + await this.token.approve(approved, firstTokenId, { from: owner }); + }); + + it('returns approved account', async function () { + expect(await this.token.getApproved(firstTokenId)).to.be.equal(approved); + }); + }); + }); + }); + }); + + describe('_mint(address, uint256)', function () { + it('reverts with a null destination address', async function () { + await expectRevert(this.token.$_mint(ZERO_ADDRESS, firstTokenId), 'ERC721: mint to the zero address'); + }); + + context('with minted token', async function () { + beforeEach(async function () { + this.receipt = await this.token.$_mint(owner, firstTokenId); + }); + + it('emits a Transfer event', function () { + expectEvent(this.receipt, 'Transfer', { from: ZERO_ADDRESS, to: owner, tokenId: firstTokenId }); + }); + + it('creates the token', async function () { + expect(await this.token.balanceOf(owner)).to.be.bignumber.equal('1'); + expect(await this.token.ownerOf(firstTokenId)).to.equal(owner); + }); + + it('reverts when adding a token id that already exists', async function () { + await expectRevert(this.token.$_mint(owner, firstTokenId), 'ERC721: token already minted'); + }); + }); + }); + + describe('_burn', function () { + it('reverts when burning a non-existent token id', async function () { + await expectRevert(this.token.$_burn(nonExistentTokenId), 'ERC721: invalid token ID'); + }); + + context('with minted tokens', function () { + beforeEach(async function () { + await this.token.$_mint(owner, firstTokenId); + await this.token.$_mint(owner, secondTokenId); + }); + + context('with burnt token', function () { + beforeEach(async function () { + this.receipt = await this.token.$_burn(firstTokenId); + }); + + it('emits a Transfer event', function () { + expectEvent(this.receipt, 'Transfer', { from: owner, to: ZERO_ADDRESS, tokenId: firstTokenId }); + }); + + it('deletes the token', async function () { + expect(await this.token.balanceOf(owner)).to.be.bignumber.equal('1'); + await expectRevert(this.token.ownerOf(firstTokenId), 'ERC721: invalid token ID'); + }); + + it('reverts when burning a token id that has been deleted', async function () { + await expectRevert(this.token.$_burn(firstTokenId), 'ERC721: invalid token ID'); + }); + }); + }); + }); +} + +function shouldBehaveLikeERC721Enumerable(errorPrefix, owner, newOwner, approved, anotherApproved, operator, other) { + shouldSupportInterfaces(['ERC721Enumerable']); + + context('with minted tokens', function () { + beforeEach(async function () { + await this.token.$_mint(owner, firstTokenId); + await this.token.$_mint(owner, secondTokenId); + this.toWhom = other; // default to other for toWhom in context-dependent tests + }); + + describe('totalSupply', function () { + it('returns total token supply', async function () { + expect(await this.token.totalSupply()).to.be.bignumber.equal('2'); + }); + }); + + describe('tokenOfOwnerByIndex', function () { + describe('when the given index is lower than the amount of tokens owned by the given address', function () { + it('returns the token ID placed at the given index', async function () { + expect(await this.token.tokenOfOwnerByIndex(owner, 0)).to.be.bignumber.equal(firstTokenId); + }); + }); + + describe('when the index is greater than or equal to the total tokens owned by the given address', function () { + it('reverts', async function () { + await expectRevert(this.token.tokenOfOwnerByIndex(owner, 2), 'ERC721Enumerable: owner index out of bounds'); + }); + }); + + describe('when the given address does not own any token', function () { + it('reverts', async function () { + await expectRevert(this.token.tokenOfOwnerByIndex(other, 0), 'ERC721Enumerable: owner index out of bounds'); + }); + }); + + describe('after transferring all tokens to another user', function () { + beforeEach(async function () { + await this.token.transferFrom(owner, other, firstTokenId, { from: owner }); + await this.token.transferFrom(owner, other, secondTokenId, { from: owner }); + }); + + it('returns correct token IDs for target', async function () { + expect(await this.token.balanceOf(other)).to.be.bignumber.equal('2'); + const tokensListed = await Promise.all([0, 1].map(i => this.token.tokenOfOwnerByIndex(other, i))); + expect(tokensListed.map(t => t.toNumber())).to.have.members([ + firstTokenId.toNumber(), + secondTokenId.toNumber(), + ]); + }); + + it('returns empty collection for original owner', async function () { + expect(await this.token.balanceOf(owner)).to.be.bignumber.equal('0'); + await expectRevert(this.token.tokenOfOwnerByIndex(owner, 0), 'ERC721Enumerable: owner index out of bounds'); + }); + }); + }); + + describe('tokenByIndex', function () { + it('returns all tokens', async function () { + const tokensListed = await Promise.all([0, 1].map(i => this.token.tokenByIndex(i))); + expect(tokensListed.map(t => t.toNumber())).to.have.members([ + firstTokenId.toNumber(), + secondTokenId.toNumber(), + ]); + }); + + it('reverts if index is greater than supply', async function () { + await expectRevert(this.token.tokenByIndex(2), 'ERC721Enumerable: global index out of bounds'); + }); + + [firstTokenId, secondTokenId].forEach(function (tokenId) { + it(`returns all tokens after burning token ${tokenId} and minting new tokens`, async function () { + const newTokenId = new BN(300); + const anotherNewTokenId = new BN(400); + + await this.token.$_burn(tokenId); + await this.token.$_mint(newOwner, newTokenId); + await this.token.$_mint(newOwner, anotherNewTokenId); + + expect(await this.token.totalSupply()).to.be.bignumber.equal('3'); + + const tokensListed = await Promise.all([0, 1, 2].map(i => this.token.tokenByIndex(i))); + const expectedTokens = [firstTokenId, secondTokenId, newTokenId, anotherNewTokenId].filter( + x => x !== tokenId, + ); + expect(tokensListed.map(t => t.toNumber())).to.have.members(expectedTokens.map(t => t.toNumber())); + }); + }); + }); + }); + + describe('_mint(address, uint256)', function () { + it('reverts with a null destination address', async function () { + await expectRevert(this.token.$_mint(ZERO_ADDRESS, firstTokenId), 'ERC721: mint to the zero address'); + }); + + context('with minted token', async function () { + beforeEach(async function () { + this.receipt = await this.token.$_mint(owner, firstTokenId); + }); + + it('adjusts owner tokens by index', async function () { + expect(await this.token.tokenOfOwnerByIndex(owner, 0)).to.be.bignumber.equal(firstTokenId); + }); + + it('adjusts all tokens list', async function () { + expect(await this.token.tokenByIndex(0)).to.be.bignumber.equal(firstTokenId); + }); + }); + }); + + describe('_burn', function () { + it('reverts when burning a non-existent token id', async function () { + await expectRevert(this.token.$_burn(firstTokenId), 'ERC721: invalid token ID'); + }); + + context('with minted tokens', function () { + beforeEach(async function () { + await this.token.$_mint(owner, firstTokenId); + await this.token.$_mint(owner, secondTokenId); + }); + + context('with burnt token', function () { + beforeEach(async function () { + this.receipt = await this.token.$_burn(firstTokenId); + }); + + it('removes that token from the token list of the owner', async function () { + expect(await this.token.tokenOfOwnerByIndex(owner, 0)).to.be.bignumber.equal(secondTokenId); + }); + + it('adjusts all tokens list', async function () { + expect(await this.token.tokenByIndex(0)).to.be.bignumber.equal(secondTokenId); + }); + + it('burns all tokens', async function () { + await this.token.$_burn(secondTokenId, { from: owner }); + expect(await this.token.totalSupply()).to.be.bignumber.equal('0'); + await expectRevert(this.token.tokenByIndex(0), 'ERC721Enumerable: global index out of bounds'); + }); + }); + }); + }); +} + +function shouldBehaveLikeERC721Metadata(errorPrefix, name, symbol, owner) { + shouldSupportInterfaces(['ERC721Metadata']); + + describe('metadata', function () { + it('has a name', async function () { + expect(await this.token.name()).to.be.equal(name); + }); + + it('has a symbol', async function () { + expect(await this.token.symbol()).to.be.equal(symbol); + }); + + describe('token URI', function () { + beforeEach(async function () { + await this.token.$_mint(owner, firstTokenId); + }); + + it('return empty string by default', async function () { + expect(await this.token.tokenURI(firstTokenId)).to.be.equal(''); + }); + + it('reverts when queried for non existent token id', async function () { + await expectRevert(this.token.tokenURI(nonExistentTokenId), 'ERC721: invalid token ID'); + }); + + describe('base URI', function () { + beforeEach(function () { + if (this.token.setBaseURI === undefined) { + this.skip(); + } + }); + + it('base URI can be set', async function () { + await this.token.setBaseURI(baseURI); + expect(await this.token.baseURI()).to.equal(baseURI); + }); + + it('base URI is added as a prefix to the token URI', async function () { + await this.token.setBaseURI(baseURI); + expect(await this.token.tokenURI(firstTokenId)).to.be.equal(baseURI + firstTokenId.toString()); + }); + + it('token URI can be changed by changing the base URI', async function () { + await this.token.setBaseURI(baseURI); + const newBaseURI = 'https://api.example.com/v2/'; + await this.token.setBaseURI(newBaseURI); + expect(await this.token.tokenURI(firstTokenId)).to.be.equal(newBaseURI + firstTokenId.toString()); + }); + }); + }); + }); +} + +module.exports = { + shouldBehaveLikeERC721, + shouldBehaveLikeERC721Enumerable, + shouldBehaveLikeERC721Metadata, +}; diff --git a/lib/openzeppelin-contracts/test/token/ERC721/ERC721.test.js b/lib/openzeppelin-contracts/test/token/ERC721/ERC721.test.js new file mode 100644 index 0000000..312430c --- /dev/null +++ b/lib/openzeppelin-contracts/test/token/ERC721/ERC721.test.js @@ -0,0 +1,15 @@ +const { shouldBehaveLikeERC721, shouldBehaveLikeERC721Metadata } = require('./ERC721.behavior'); + +const ERC721 = artifacts.require('$ERC721'); + +contract('ERC721', function (accounts) { + const name = 'Non Fungible Token'; + const symbol = 'NFT'; + + beforeEach(async function () { + this.token = await ERC721.new(name, symbol); + }); + + shouldBehaveLikeERC721('ERC721', ...accounts); + shouldBehaveLikeERC721Metadata('ERC721', name, symbol, ...accounts); +}); diff --git a/lib/openzeppelin-contracts/test/token/ERC721/ERC721Enumerable.test.js b/lib/openzeppelin-contracts/test/token/ERC721/ERC721Enumerable.test.js new file mode 100644 index 0000000..b32f22d --- /dev/null +++ b/lib/openzeppelin-contracts/test/token/ERC721/ERC721Enumerable.test.js @@ -0,0 +1,20 @@ +const { + shouldBehaveLikeERC721, + shouldBehaveLikeERC721Metadata, + shouldBehaveLikeERC721Enumerable, +} = require('./ERC721.behavior'); + +const ERC721Enumerable = artifacts.require('$ERC721Enumerable'); + +contract('ERC721Enumerable', function (accounts) { + const name = 'Non Fungible Token'; + const symbol = 'NFT'; + + beforeEach(async function () { + this.token = await ERC721Enumerable.new(name, symbol); + }); + + shouldBehaveLikeERC721('ERC721', ...accounts); + shouldBehaveLikeERC721Metadata('ERC721', name, symbol, ...accounts); + shouldBehaveLikeERC721Enumerable('ERC721', ...accounts); +}); diff --git a/lib/openzeppelin-contracts/test/token/ERC721/extensions/ERC721Burnable.test.js b/lib/openzeppelin-contracts/test/token/ERC721/extensions/ERC721Burnable.test.js new file mode 100644 index 0000000..6a4bc6d --- /dev/null +++ b/lib/openzeppelin-contracts/test/token/ERC721/extensions/ERC721Burnable.test.js @@ -0,0 +1,70 @@ +const { BN, constants, expectEvent, expectRevert } = require('@openzeppelin/test-helpers'); + +const { expect } = require('chai'); + +const ERC721Burnable = artifacts.require('$ERC721Burnable'); + +contract('ERC721Burnable', function (accounts) { + const [owner, approved] = accounts; + + const firstTokenId = new BN(1); + const secondTokenId = new BN(2); + const unknownTokenId = new BN(3); + + const name = 'Non Fungible Token'; + const symbol = 'NFT'; + + beforeEach(async function () { + this.token = await ERC721Burnable.new(name, symbol); + }); + + describe('like a burnable ERC721', function () { + beforeEach(async function () { + await this.token.$_mint(owner, firstTokenId); + await this.token.$_mint(owner, secondTokenId); + }); + + describe('burn', function () { + const tokenId = firstTokenId; + let receipt = null; + + describe('when successful', function () { + beforeEach(async function () { + receipt = await this.token.burn(tokenId, { from: owner }); + }); + + it('burns the given token ID and adjusts the balance of the owner', async function () { + await expectRevert(this.token.ownerOf(tokenId), 'ERC721: invalid token ID'); + expect(await this.token.balanceOf(owner)).to.be.bignumber.equal('1'); + }); + + it('emits a burn event', async function () { + expectEvent(receipt, 'Transfer', { + from: owner, + to: constants.ZERO_ADDRESS, + tokenId: tokenId, + }); + }); + }); + + describe('when there is a previous approval burned', function () { + beforeEach(async function () { + await this.token.approve(approved, tokenId, { from: owner }); + receipt = await this.token.burn(tokenId, { from: owner }); + }); + + context('getApproved', function () { + it('reverts', async function () { + await expectRevert(this.token.getApproved(tokenId), 'ERC721: invalid token ID'); + }); + }); + }); + + describe('when the given token ID was not tracked by this contract', function () { + it('reverts', async function () { + await expectRevert(this.token.burn(unknownTokenId, { from: owner }), 'ERC721: invalid token ID'); + }); + }); + }); + }); +}); diff --git a/lib/openzeppelin-contracts/test/token/ERC721/extensions/ERC721Consecutive.test.js b/lib/openzeppelin-contracts/test/token/ERC721/extensions/ERC721Consecutive.test.js new file mode 100644 index 0000000..3d49228 --- /dev/null +++ b/lib/openzeppelin-contracts/test/token/ERC721/extensions/ERC721Consecutive.test.js @@ -0,0 +1,205 @@ +const { constants, expectEvent, expectRevert } = require('@openzeppelin/test-helpers'); +const { expect } = require('chai'); + +const ERC721ConsecutiveMock = artifacts.require('$ERC721ConsecutiveMock'); +const ERC721ConsecutiveEnumerableMock = artifacts.require('$ERC721ConsecutiveEnumerableMock'); +const ERC721ConsecutiveNoConstructorMintMock = artifacts.require('$ERC721ConsecutiveNoConstructorMintMock'); + +contract('ERC721Consecutive', function (accounts) { + const [user1, user2, user3, receiver] = accounts; + + const name = 'Non Fungible Token'; + const symbol = 'NFT'; + const batches = [ + { receiver: user1, amount: 0 }, + { receiver: user1, amount: 3 }, + { receiver: user2, amount: 5 }, + { receiver: user3, amount: 0 }, + { receiver: user1, amount: 7 }, + ]; + const delegates = [user1, user3]; + + describe('with valid batches', function () { + beforeEach(async function () { + this.token = await ERC721ConsecutiveMock.new( + name, + symbol, + delegates, + batches.map(({ receiver }) => receiver), + batches.map(({ amount }) => amount), + ); + }); + + describe('minting during construction', function () { + it('events are emitted at construction', async function () { + let first = 0; + + for (const batch of batches) { + if (batch.amount > 0) { + await expectEvent.inConstruction(this.token, 'ConsecutiveTransfer', { + fromTokenId: web3.utils.toBN(first), + toTokenId: web3.utils.toBN(first + batch.amount - 1), + fromAddress: constants.ZERO_ADDRESS, + toAddress: batch.receiver, + }); + } else { + // expectEvent.notEmitted.inConstruction only looks at event name, and doesn't check the parameters + } + first += batch.amount; + } + }); + + it('ownership is set', async function () { + const owners = batches.flatMap(({ receiver, amount }) => Array(amount).fill(receiver)); + + for (const tokenId in owners) { + expect(await this.token.ownerOf(tokenId)).to.be.equal(owners[tokenId]); + } + }); + + it('balance & voting power are set', async function () { + for (const account of accounts) { + const balance = batches + .filter(({ receiver }) => receiver === account) + .map(({ amount }) => amount) + .reduce((a, b) => a + b, 0); + + expect(await this.token.balanceOf(account)).to.be.bignumber.equal(web3.utils.toBN(balance)); + + // If not delegated at construction, check before + do delegation + if (!delegates.includes(account)) { + expect(await this.token.getVotes(account)).to.be.bignumber.equal(web3.utils.toBN(0)); + + await this.token.delegate(account, { from: account }); + } + + // At this point all accounts should have delegated + expect(await this.token.getVotes(account)).to.be.bignumber.equal(web3.utils.toBN(balance)); + } + }); + }); + + describe('minting after construction', function () { + it('consecutive minting is not possible after construction', async function () { + await expectRevert( + this.token.$_mintConsecutive(user1, 10), + 'ERC721Consecutive: batch minting restricted to constructor', + ); + }); + + it('simple minting is possible after construction', async function () { + const tokenId = batches.reduce((acc, { amount }) => acc + amount, 0); + + expect(await this.token.$_exists(tokenId)).to.be.equal(false); + + expectEvent(await this.token.$_mint(user1, tokenId), 'Transfer', { + from: constants.ZERO_ADDRESS, + to: user1, + tokenId: tokenId.toString(), + }); + }); + + it('cannot mint a token that has been batched minted', async function () { + const tokenId = batches.reduce((acc, { amount }) => acc + amount, 0) - 1; + + expect(await this.token.$_exists(tokenId)).to.be.equal(true); + + await expectRevert(this.token.$_mint(user1, tokenId), 'ERC721: token already minted'); + }); + }); + + describe('ERC721 behavior', function () { + it('core takes over ownership on transfer', async function () { + await this.token.transferFrom(user1, receiver, 1, { from: user1 }); + + expect(await this.token.ownerOf(1)).to.be.equal(receiver); + }); + + it('tokens can be burned and re-minted #1', async function () { + expectEvent(await this.token.$_burn(1, { from: user1 }), 'Transfer', { + from: user1, + to: constants.ZERO_ADDRESS, + tokenId: '1', + }); + + await expectRevert(this.token.ownerOf(1), 'ERC721: invalid token ID'); + + expectEvent(await this.token.$_mint(user2, 1), 'Transfer', { + from: constants.ZERO_ADDRESS, + to: user2, + tokenId: '1', + }); + + expect(await this.token.ownerOf(1)).to.be.equal(user2); + }); + + it('tokens can be burned and re-minted #2', async function () { + const tokenId = batches.reduce((acc, { amount }) => acc.addn(amount), web3.utils.toBN(0)); + + expect(await this.token.$_exists(tokenId)).to.be.equal(false); + await expectRevert(this.token.ownerOf(tokenId), 'ERC721: invalid token ID'); + + // mint + await this.token.$_mint(user1, tokenId); + + expect(await this.token.$_exists(tokenId)).to.be.equal(true); + expect(await this.token.ownerOf(tokenId), user1); + + // burn + expectEvent(await this.token.$_burn(tokenId, { from: user1 }), 'Transfer', { + from: user1, + to: constants.ZERO_ADDRESS, + tokenId, + }); + + expect(await this.token.$_exists(tokenId)).to.be.equal(false); + await expectRevert(this.token.ownerOf(tokenId), 'ERC721: invalid token ID'); + + // re-mint + expectEvent(await this.token.$_mint(user2, tokenId), 'Transfer', { + from: constants.ZERO_ADDRESS, + to: user2, + tokenId, + }); + + expect(await this.token.$_exists(tokenId)).to.be.equal(true); + expect(await this.token.ownerOf(tokenId), user2); + }); + }); + }); + + describe('invalid use', function () { + it('cannot mint a batch larger than 5000', async function () { + await expectRevert( + ERC721ConsecutiveMock.new(name, symbol, [], [user1], ['5001']), + 'ERC721Consecutive: batch too large', + ); + }); + + it('cannot use single minting during construction', async function () { + await expectRevert( + ERC721ConsecutiveNoConstructorMintMock.new(name, symbol), + "ERC721Consecutive: can't mint during construction", + ); + }); + + it('cannot use single minting during construction', async function () { + await expectRevert( + ERC721ConsecutiveNoConstructorMintMock.new(name, symbol), + "ERC721Consecutive: can't mint during construction", + ); + }); + + it('consecutive mint not compatible with enumerability', async function () { + await expectRevert( + ERC721ConsecutiveEnumerableMock.new( + name, + symbol, + batches.map(({ receiver }) => receiver), + batches.map(({ amount }) => amount), + ), + 'ERC721Enumerable: consecutive transfers not supported', + ); + }); + }); +}); diff --git a/lib/openzeppelin-contracts/test/token/ERC721/extensions/ERC721Pausable.test.js b/lib/openzeppelin-contracts/test/token/ERC721/extensions/ERC721Pausable.test.js new file mode 100644 index 0000000..c7fc823 --- /dev/null +++ b/lib/openzeppelin-contracts/test/token/ERC721/extensions/ERC721Pausable.test.js @@ -0,0 +1,92 @@ +const { BN, constants, expectRevert } = require('@openzeppelin/test-helpers'); + +const { expect } = require('chai'); + +const ERC721Pausable = artifacts.require('$ERC721Pausable'); + +contract('ERC721Pausable', function (accounts) { + const [owner, receiver, operator] = accounts; + + const name = 'Non Fungible Token'; + const symbol = 'NFT'; + + beforeEach(async function () { + this.token = await ERC721Pausable.new(name, symbol); + }); + + context('when token is paused', function () { + const firstTokenId = new BN(1); + const secondTokenId = new BN(1337); + + const mockData = '0x42'; + + beforeEach(async function () { + await this.token.$_mint(owner, firstTokenId, { from: owner }); + await this.token.$_pause(); + }); + + it('reverts when trying to transferFrom', async function () { + await expectRevert( + this.token.transferFrom(owner, receiver, firstTokenId, { from: owner }), + 'ERC721Pausable: token transfer while paused', + ); + }); + + it('reverts when trying to safeTransferFrom', async function () { + await expectRevert( + this.token.safeTransferFrom(owner, receiver, firstTokenId, { from: owner }), + 'ERC721Pausable: token transfer while paused', + ); + }); + + it('reverts when trying to safeTransferFrom with data', async function () { + await expectRevert( + this.token.methods['safeTransferFrom(address,address,uint256,bytes)'](owner, receiver, firstTokenId, mockData, { + from: owner, + }), + 'ERC721Pausable: token transfer while paused', + ); + }); + + it('reverts when trying to mint', async function () { + await expectRevert(this.token.$_mint(receiver, secondTokenId), 'ERC721Pausable: token transfer while paused'); + }); + + it('reverts when trying to burn', async function () { + await expectRevert(this.token.$_burn(firstTokenId), 'ERC721Pausable: token transfer while paused'); + }); + + describe('getApproved', function () { + it('returns approved address', async function () { + const approvedAccount = await this.token.getApproved(firstTokenId); + expect(approvedAccount).to.equal(constants.ZERO_ADDRESS); + }); + }); + + describe('balanceOf', function () { + it('returns the amount of tokens owned by the given address', async function () { + const balance = await this.token.balanceOf(owner); + expect(balance).to.be.bignumber.equal('1'); + }); + }); + + describe('ownerOf', function () { + it('returns the amount of tokens owned by the given address', async function () { + const ownerOfToken = await this.token.ownerOf(firstTokenId); + expect(ownerOfToken).to.equal(owner); + }); + }); + + describe('exists', function () { + it('returns token existence', async function () { + expect(await this.token.$_exists(firstTokenId)).to.equal(true); + }); + }); + + describe('isApprovedForAll', function () { + it('returns the approval of the operator', async function () { + expect(await this.token.isApprovedForAll(owner, operator)).to.equal(false); + }); + }); + }); +}); diff --git a/lib/openzeppelin-contracts/test/token/ERC721/extensions/ERC721Royalty.test.js b/lib/openzeppelin-contracts/test/token/ERC721/extensions/ERC721Royalty.test.js new file mode 100644 index 0000000..1c0536b --- /dev/null +++ b/lib/openzeppelin-contracts/test/token/ERC721/extensions/ERC721Royalty.test.js @@ -0,0 +1,41 @@ +const { BN, constants } = require('@openzeppelin/test-helpers'); + +const { shouldBehaveLikeERC2981 } = require('../../common/ERC2981.behavior'); + +const ERC721Royalty = artifacts.require('$ERC721Royalty'); + +contract('ERC721Royalty', function (accounts) { + const [account1, account2] = accounts; + const tokenId1 = new BN('1'); + const tokenId2 = new BN('2'); + const royalty = new BN('200'); + const salePrice = new BN('1000'); + + beforeEach(async function () { + this.token = await ERC721Royalty.new('My Token', 'TKN'); + + await this.token.$_mint(account1, tokenId1); + await this.token.$_mint(account1, tokenId2); + this.account1 = account1; + this.account2 = account2; + this.tokenId1 = tokenId1; + this.tokenId2 = tokenId2; + this.salePrice = salePrice; + }); + + describe('token specific functions', function () { + beforeEach(async function () { + await this.token.$_setTokenRoyalty(tokenId1, account1, royalty); + }); + + it('removes royalty information after burn', async function () { + await this.token.$_burn(tokenId1); + const tokenInfo = await this.token.royaltyInfo(tokenId1, salePrice); + + expect(tokenInfo[0]).to.be.equal(constants.ZERO_ADDRESS); + expect(tokenInfo[1]).to.be.bignumber.equal(new BN('0')); + }); + }); + + shouldBehaveLikeERC2981(); +}); diff --git a/lib/openzeppelin-contracts/test/token/ERC721/extensions/ERC721URIStorage.test.js b/lib/openzeppelin-contracts/test/token/ERC721/extensions/ERC721URIStorage.test.js new file mode 100644 index 0000000..c0274c6 --- /dev/null +++ b/lib/openzeppelin-contracts/test/token/ERC721/extensions/ERC721URIStorage.test.js @@ -0,0 +1,91 @@ +const { BN, expectRevert } = require('@openzeppelin/test-helpers'); + +const { expect } = require('chai'); + +const ERC721URIStorageMock = artifacts.require('$ERC721URIStorageMock'); + +contract('ERC721URIStorage', function (accounts) { + const [owner] = accounts; + + const name = 'Non Fungible Token'; + const symbol = 'NFT'; + + const firstTokenId = new BN('5042'); + const nonExistentTokenId = new BN('13'); + + beforeEach(async function () { + this.token = await ERC721URIStorageMock.new(name, symbol); + }); + + describe('token URI', function () { + beforeEach(async function () { + await this.token.$_mint(owner, firstTokenId); + }); + + const baseURI = 'https://api.example.com/v1/'; + const sampleUri = 'mock://mytoken'; + + it('it is empty by default', async function () { + expect(await this.token.tokenURI(firstTokenId)).to.be.equal(''); + }); + + it('reverts when queried for non existent token id', async function () { + await expectRevert(this.token.tokenURI(nonExistentTokenId), 'ERC721: invalid token ID'); + }); + + it('can be set for a token id', async function () { + await this.token.$_setTokenURI(firstTokenId, sampleUri); + expect(await this.token.tokenURI(firstTokenId)).to.be.equal(sampleUri); + }); + + it('reverts when setting for non existent token id', async function () { + await expectRevert( + this.token.$_setTokenURI(nonExistentTokenId, sampleUri), + 'ERC721URIStorage: URI set of nonexistent token', + ); + }); + + it('base URI can be set', async function () { + await this.token.setBaseURI(baseURI); + expect(await this.token.$_baseURI()).to.equal(baseURI); + }); + + it('base URI is added as a prefix to the token URI', async function () { + await this.token.setBaseURI(baseURI); + await this.token.$_setTokenURI(firstTokenId, sampleUri); + + expect(await this.token.tokenURI(firstTokenId)).to.be.equal(baseURI + sampleUri); + }); + + it('token URI can be changed by changing the base URI', async function () { + await this.token.setBaseURI(baseURI); + await this.token.$_setTokenURI(firstTokenId, sampleUri); + + const newBaseURI = 'https://api.example.com/v2/'; + await this.token.setBaseURI(newBaseURI); + expect(await this.token.tokenURI(firstTokenId)).to.be.equal(newBaseURI + sampleUri); + }); + + it('tokenId is appended to base URI for tokens with no URI', async function () { + await this.token.setBaseURI(baseURI); + + expect(await this.token.tokenURI(firstTokenId)).to.be.equal(baseURI + firstTokenId); + }); + + it('tokens without URI can be burnt ', async function () { + await this.token.$_burn(firstTokenId, { from: owner }); + + expect(await this.token.$_exists(firstTokenId)).to.equal(false); + await expectRevert(this.token.tokenURI(firstTokenId), 'ERC721: invalid token ID'); + }); + + it('tokens with URI can be burnt ', async function () { + await this.token.$_setTokenURI(firstTokenId, sampleUri); + + await this.token.$_burn(firstTokenId, { from: owner }); + + expect(await this.token.$_exists(firstTokenId)).to.equal(false); + await expectRevert(this.token.tokenURI(firstTokenId), 'ERC721: invalid token ID'); + }); + }); +}); diff --git a/lib/openzeppelin-contracts/test/token/ERC721/extensions/ERC721Votes.test.js b/lib/openzeppelin-contracts/test/token/ERC721/extensions/ERC721Votes.test.js new file mode 100644 index 0000000..f7baef4 --- /dev/null +++ b/lib/openzeppelin-contracts/test/token/ERC721/extensions/ERC721Votes.test.js @@ -0,0 +1,183 @@ +/* eslint-disable */ + +const { BN, expectEvent, time } = require('@openzeppelin/test-helpers'); +const { expect } = require('chai'); + +const { getChainId } = require('../../../helpers/chainid'); + +const { shouldBehaveLikeVotes } = require('../../../governance/utils/Votes.behavior'); + +const ERC721Votes = artifacts.require('$ERC721Votes'); + +contract('ERC721Votes', function (accounts) { + const [account1, account2, account1Delegatee, other1, other2] = accounts; + + const name = 'My Vote'; + const symbol = 'MTKN'; + + beforeEach(async function () { + this.chainId = await getChainId(); + + this.votes = await ERC721Votes.new(name, symbol, name, '1'); + + this.NFT0 = new BN('10000000000000000000000000'); + this.NFT1 = new BN('10'); + this.NFT2 = new BN('20'); + this.NFT3 = new BN('30'); + }); + + describe('balanceOf', function () { + beforeEach(async function () { + await this.votes.$_mint(account1, this.NFT0); + await this.votes.$_mint(account1, this.NFT1); + await this.votes.$_mint(account1, this.NFT2); + await this.votes.$_mint(account1, this.NFT3); + }); + + it('grants to initial account', async function () { + expect(await this.votes.balanceOf(account1)).to.be.bignumber.equal('4'); + }); + }); + + describe('transfers', function () { + beforeEach(async function () { + await this.votes.$_mint(account1, this.NFT0); + }); + + it('no delegation', async function () { + const { receipt } = await this.votes.transferFrom(account1, account2, this.NFT0, { from: account1 }); + expectEvent(receipt, 'Transfer', { from: account1, to: account2, tokenId: this.NFT0 }); + expectEvent.notEmitted(receipt, 'DelegateVotesChanged'); + + this.account1Votes = '0'; + this.account2Votes = '0'; + }); + + it('sender delegation', async function () { + await this.votes.delegate(account1, { from: account1 }); + + const { receipt } = await this.votes.transferFrom(account1, account2, this.NFT0, { from: account1 }); + expectEvent(receipt, 'Transfer', { from: account1, to: account2, tokenId: this.NFT0 }); + expectEvent(receipt, 'DelegateVotesChanged', { delegate: account1, previousBalance: '1', newBalance: '0' }); + + const { logIndex: transferLogIndex } = receipt.logs.find(({ event }) => event == 'Transfer'); + expect( + receipt.logs + .filter(({ event }) => event == 'DelegateVotesChanged') + .every(({ logIndex }) => transferLogIndex < logIndex), + ).to.be.equal(true); + + this.account1Votes = '0'; + this.account2Votes = '0'; + }); + + it('receiver delegation', async function () { + await this.votes.delegate(account2, { from: account2 }); + + const { receipt } = await this.votes.transferFrom(account1, account2, this.NFT0, { from: account1 }); + expectEvent(receipt, 'Transfer', { from: account1, to: account2, tokenId: this.NFT0 }); + expectEvent(receipt, 'DelegateVotesChanged', { delegate: account2, previousBalance: '0', newBalance: '1' }); + + const { logIndex: transferLogIndex } = receipt.logs.find(({ event }) => event == 'Transfer'); + expect( + receipt.logs + .filter(({ event }) => event == 'DelegateVotesChanged') + .every(({ logIndex }) => transferLogIndex < logIndex), + ).to.be.equal(true); + + this.account1Votes = '0'; + this.account2Votes = '1'; + }); + + it('full delegation', async function () { + await this.votes.delegate(account1, { from: account1 }); + await this.votes.delegate(account2, { from: account2 }); + + const { receipt } = await this.votes.transferFrom(account1, account2, this.NFT0, { from: account1 }); + expectEvent(receipt, 'Transfer', { from: account1, to: account2, tokenId: this.NFT0 }); + expectEvent(receipt, 'DelegateVotesChanged', { delegate: account1, previousBalance: '1', newBalance: '0' }); + expectEvent(receipt, 'DelegateVotesChanged', { delegate: account2, previousBalance: '0', newBalance: '1' }); + + const { logIndex: transferLogIndex } = receipt.logs.find(({ event }) => event == 'Transfer'); + expect( + receipt.logs + .filter(({ event }) => event == 'DelegateVotesChanged') + .every(({ logIndex }) => transferLogIndex < logIndex), + ).to.be.equal(true); + + this.account1Votes = '0'; + this.account2Votes = '1'; + }); + + it('returns the same total supply on transfers', async function () { + await this.votes.delegate(account1, { from: account1 }); + + const { receipt } = await this.votes.transferFrom(account1, account2, this.NFT0, { from: account1 }); + + await time.advanceBlock(); + await time.advanceBlock(); + + expect(await this.votes.getPastTotalSupply(receipt.blockNumber - 1)).to.be.bignumber.equal('1'); + expect(await this.votes.getPastTotalSupply(receipt.blockNumber + 1)).to.be.bignumber.equal('1'); + + this.account1Votes = '0'; + this.account2Votes = '0'; + }); + + it('generally returns the voting balance at the appropriate checkpoint', async function () { + await this.votes.$_mint(account1, this.NFT1); + await this.votes.$_mint(account1, this.NFT2); + await this.votes.$_mint(account1, this.NFT3); + + const total = await this.votes.balanceOf(account1); + + const t1 = await this.votes.delegate(other1, { from: account1 }); + await time.advanceBlock(); + await time.advanceBlock(); + const t2 = await this.votes.transferFrom(account1, other2, this.NFT0, { from: account1 }); + await time.advanceBlock(); + await time.advanceBlock(); + const t3 = await this.votes.transferFrom(account1, other2, this.NFT2, { from: account1 }); + await time.advanceBlock(); + await time.advanceBlock(); + const t4 = await this.votes.transferFrom(other2, account1, this.NFT2, { from: other2 }); + await time.advanceBlock(); + await time.advanceBlock(); + + expect(await this.votes.getPastVotes(other1, t1.receipt.blockNumber - 1)).to.be.bignumber.equal('0'); + expect(await this.votes.getPastVotes(other1, t1.receipt.blockNumber)).to.be.bignumber.equal(total); + expect(await this.votes.getPastVotes(other1, t1.receipt.blockNumber + 1)).to.be.bignumber.equal(total); + expect(await this.votes.getPastVotes(other1, t2.receipt.blockNumber)).to.be.bignumber.equal('3'); + expect(await this.votes.getPastVotes(other1, t2.receipt.blockNumber + 1)).to.be.bignumber.equal('3'); + expect(await this.votes.getPastVotes(other1, t3.receipt.blockNumber)).to.be.bignumber.equal('2'); + expect(await this.votes.getPastVotes(other1, t3.receipt.blockNumber + 1)).to.be.bignumber.equal('2'); + expect(await this.votes.getPastVotes(other1, t4.receipt.blockNumber)).to.be.bignumber.equal('3'); + expect(await this.votes.getPastVotes(other1, t4.receipt.blockNumber + 1)).to.be.bignumber.equal('3'); + + this.account1Votes = '0'; + this.account2Votes = '0'; + }); + + afterEach(async function () { + expect(await this.votes.getVotes(account1)).to.be.bignumber.equal(this.account1Votes); + expect(await this.votes.getVotes(account2)).to.be.bignumber.equal(this.account2Votes); + + // need to advance 2 blocks to see the effect of a transfer on "getPastVotes" + const blockNumber = await time.latestBlock(); + await time.advanceBlock(); + expect(await this.votes.getPastVotes(account1, blockNumber)).to.be.bignumber.equal(this.account1Votes); + expect(await this.votes.getPastVotes(account2, blockNumber)).to.be.bignumber.equal(this.account2Votes); + }); + }); + + describe('Voting workflow', function () { + beforeEach(async function () { + this.account1 = account1; + this.account1Delegatee = account1Delegatee; + this.account2 = account2; + this.name = 'My Vote'; + }); + + shouldBehaveLikeVotes(); + }); +}); diff --git a/lib/openzeppelin-contracts/test/token/ERC721/presets/ERC721PresetMinterPauserAutoId.test.js b/lib/openzeppelin-contracts/test/token/ERC721/presets/ERC721PresetMinterPauserAutoId.test.js new file mode 100644 index 0000000..0af614b --- /dev/null +++ b/lib/openzeppelin-contracts/test/token/ERC721/presets/ERC721PresetMinterPauserAutoId.test.js @@ -0,0 +1,122 @@ +const { BN, constants, expectEvent, expectRevert } = require('@openzeppelin/test-helpers'); +const { ZERO_ADDRESS } = constants; +const { shouldSupportInterfaces } = require('../../../utils/introspection/SupportsInterface.behavior'); + +const { expect } = require('chai'); + +const ERC721PresetMinterPauserAutoId = artifacts.require('ERC721PresetMinterPauserAutoId'); + +contract('ERC721PresetMinterPauserAutoId', function (accounts) { + const [deployer, other] = accounts; + + const name = 'MinterAutoIDToken'; + const symbol = 'MAIT'; + const baseURI = 'my.app/'; + + const DEFAULT_ADMIN_ROLE = '0x0000000000000000000000000000000000000000000000000000000000000000'; + const MINTER_ROLE = web3.utils.soliditySha3('MINTER_ROLE'); + + beforeEach(async function () { + this.token = await ERC721PresetMinterPauserAutoId.new(name, symbol, baseURI, { from: deployer }); + }); + + shouldSupportInterfaces(['ERC721', 'ERC721Enumerable', 'AccessControl', 'AccessControlEnumerable']); + + it('token has correct name', async function () { + expect(await this.token.name()).to.equal(name); + }); + + it('token has correct symbol', async function () { + expect(await this.token.symbol()).to.equal(symbol); + }); + + it('deployer has the default admin role', async function () { + expect(await this.token.getRoleMemberCount(DEFAULT_ADMIN_ROLE)).to.be.bignumber.equal('1'); + expect(await this.token.getRoleMember(DEFAULT_ADMIN_ROLE, 0)).to.equal(deployer); + }); + + it('deployer has the minter role', async function () { + expect(await this.token.getRoleMemberCount(MINTER_ROLE)).to.be.bignumber.equal('1'); + expect(await this.token.getRoleMember(MINTER_ROLE, 0)).to.equal(deployer); + }); + + it('minter role admin is the default admin', async function () { + expect(await this.token.getRoleAdmin(MINTER_ROLE)).to.equal(DEFAULT_ADMIN_ROLE); + }); + + describe('minting', function () { + it('deployer can mint tokens', async function () { + const tokenId = new BN('0'); + + const receipt = await this.token.mint(other, { from: deployer }); + expectEvent(receipt, 'Transfer', { from: ZERO_ADDRESS, to: other, tokenId }); + + expect(await this.token.balanceOf(other)).to.be.bignumber.equal('1'); + expect(await this.token.ownerOf(tokenId)).to.equal(other); + + expect(await this.token.tokenURI(tokenId)).to.equal(baseURI + tokenId); + }); + + it('other accounts cannot mint tokens', async function () { + await expectRevert( + this.token.mint(other, { from: other }), + 'ERC721PresetMinterPauserAutoId: must have minter role to mint', + ); + }); + }); + + describe('pausing', function () { + it('deployer can pause', async function () { + const receipt = await this.token.pause({ from: deployer }); + expectEvent(receipt, 'Paused', { account: deployer }); + + expect(await this.token.paused()).to.equal(true); + }); + + it('deployer can unpause', async function () { + await this.token.pause({ from: deployer }); + + const receipt = await this.token.unpause({ from: deployer }); + expectEvent(receipt, 'Unpaused', { account: deployer }); + + expect(await this.token.paused()).to.equal(false); + }); + + it('cannot mint while paused', async function () { + await this.token.pause({ from: deployer }); + + await expectRevert(this.token.mint(other, { from: deployer }), 'ERC721Pausable: token transfer while paused'); + }); + + it('other accounts cannot pause', async function () { + await expectRevert( + this.token.pause({ from: other }), + 'ERC721PresetMinterPauserAutoId: must have pauser role to pause', + ); + }); + + it('other accounts cannot unpause', async function () { + await this.token.pause({ from: deployer }); + + await expectRevert( + this.token.unpause({ from: other }), + 'ERC721PresetMinterPauserAutoId: must have pauser role to unpause', + ); + }); + }); + + describe('burning', function () { + it('holders can burn their tokens', async function () { + const tokenId = new BN('0'); + + await this.token.mint(other, { from: deployer }); + + const receipt = await this.token.burn(tokenId, { from: other }); + + expectEvent(receipt, 'Transfer', { from: other, to: ZERO_ADDRESS, tokenId }); + + expect(await this.token.balanceOf(other)).to.be.bignumber.equal('0'); + expect(await this.token.totalSupply()).to.be.bignumber.equal('0'); + }); + }); +}); diff --git a/lib/openzeppelin-contracts/test/token/ERC721/utils/ERC721Holder.test.js b/lib/openzeppelin-contracts/test/token/ERC721/utils/ERC721Holder.test.js new file mode 100644 index 0000000..0fd8222 --- /dev/null +++ b/lib/openzeppelin-contracts/test/token/ERC721/utils/ERC721Holder.test.js @@ -0,0 +1,22 @@ +const { expect } = require('chai'); + +const ERC721Holder = artifacts.require('ERC721Holder'); +const ERC721 = artifacts.require('$ERC721'); + +contract('ERC721Holder', function (accounts) { + const [owner] = accounts; + + const name = 'Non Fungible Token'; + const symbol = 'NFT'; + const tokenId = web3.utils.toBN(1); + + it('receives an ERC721 token', async function () { + const token = await ERC721.new(name, symbol); + await token.$_mint(owner, tokenId); + + const receiver = await ERC721Holder.new(); + await token.safeTransferFrom(owner, receiver.address, tokenId, { from: owner }); + + expect(await token.ownerOf(tokenId)).to.be.equal(receiver.address); + }); +}); diff --git a/lib/openzeppelin-contracts/test/token/ERC777/ERC777.behavior.js b/lib/openzeppelin-contracts/test/token/ERC777/ERC777.behavior.js new file mode 100644 index 0000000..b1585bc --- /dev/null +++ b/lib/openzeppelin-contracts/test/token/ERC777/ERC777.behavior.js @@ -0,0 +1,597 @@ +const { BN, constants, expectEvent, expectRevert } = require('@openzeppelin/test-helpers'); +const { ZERO_ADDRESS } = constants; + +const { expect } = require('chai'); + +const ERC777SenderRecipientMock = artifacts.require('ERC777SenderRecipientMock'); + +function shouldBehaveLikeERC777DirectSendBurn(holder, recipient, data) { + shouldBehaveLikeERC777DirectSend(holder, recipient, data); + shouldBehaveLikeERC777DirectBurn(holder, data); +} + +function shouldBehaveLikeERC777OperatorSendBurn(holder, recipient, operator, data, operatorData) { + shouldBehaveLikeERC777OperatorSend(holder, recipient, operator, data, operatorData); + shouldBehaveLikeERC777OperatorBurn(holder, operator, data, operatorData); +} + +function shouldBehaveLikeERC777UnauthorizedOperatorSendBurn(holder, recipient, operator, data, operatorData) { + shouldBehaveLikeERC777UnauthorizedOperatorSend(holder, recipient, operator, data, operatorData); + shouldBehaveLikeERC777UnauthorizedOperatorBurn(holder, operator, data, operatorData); +} + +function shouldBehaveLikeERC777DirectSend(holder, recipient, data) { + describe('direct send', function () { + context('when the sender has tokens', function () { + shouldDirectSendTokens(holder, recipient, new BN('0'), data); + shouldDirectSendTokens(holder, recipient, new BN('1'), data); + + it('reverts when sending more than the balance', async function () { + const balance = await this.token.balanceOf(holder); + await expectRevert.unspecified(this.token.send(recipient, balance.addn(1), data, { from: holder })); + }); + + it('reverts when sending to the zero address', async function () { + await expectRevert.unspecified(this.token.send(ZERO_ADDRESS, new BN('1'), data, { from: holder })); + }); + }); + + context('when the sender has no tokens', function () { + removeBalance(holder); + + shouldDirectSendTokens(holder, recipient, new BN('0'), data); + + it('reverts when sending a non-zero amount', async function () { + await expectRevert.unspecified(this.token.send(recipient, new BN('1'), data, { from: holder })); + }); + }); + }); +} + +function shouldBehaveLikeERC777OperatorSend(holder, recipient, operator, data, operatorData) { + describe('operator send', function () { + context('when the sender has tokens', async function () { + shouldOperatorSendTokens(holder, operator, recipient, new BN('0'), data, operatorData); + shouldOperatorSendTokens(holder, operator, recipient, new BN('1'), data, operatorData); + + it('reverts when sending more than the balance', async function () { + const balance = await this.token.balanceOf(holder); + await expectRevert.unspecified( + this.token.operatorSend(holder, recipient, balance.addn(1), data, operatorData, { from: operator }), + ); + }); + + it('reverts when sending to the zero address', async function () { + await expectRevert.unspecified( + this.token.operatorSend(holder, ZERO_ADDRESS, new BN('1'), data, operatorData, { from: operator }), + ); + }); + }); + + context('when the sender has no tokens', function () { + removeBalance(holder); + + shouldOperatorSendTokens(holder, operator, recipient, new BN('0'), data, operatorData); + + it('reverts when sending a non-zero amount', async function () { + await expectRevert.unspecified( + this.token.operatorSend(holder, recipient, new BN('1'), data, operatorData, { from: operator }), + ); + }); + + it('reverts when sending from the zero address', async function () { + // This is not yet reflected in the spec + await expectRevert.unspecified( + this.token.operatorSend(ZERO_ADDRESS, recipient, new BN('0'), data, operatorData, { from: operator }), + ); + }); + }); + }); +} + +function shouldBehaveLikeERC777UnauthorizedOperatorSend(holder, recipient, operator, data, operatorData) { + describe('operator send', function () { + it('reverts', async function () { + await expectRevert.unspecified(this.token.operatorSend(holder, recipient, new BN('0'), data, operatorData)); + }); + }); +} + +function shouldBehaveLikeERC777DirectBurn(holder, data) { + describe('direct burn', function () { + context('when the sender has tokens', function () { + shouldDirectBurnTokens(holder, new BN('0'), data); + shouldDirectBurnTokens(holder, new BN('1'), data); + + it('reverts when burning more than the balance', async function () { + const balance = await this.token.balanceOf(holder); + await expectRevert.unspecified(this.token.burn(balance.addn(1), data, { from: holder })); + }); + }); + + context('when the sender has no tokens', function () { + removeBalance(holder); + + shouldDirectBurnTokens(holder, new BN('0'), data); + + it('reverts when burning a non-zero amount', async function () { + await expectRevert.unspecified(this.token.burn(new BN('1'), data, { from: holder })); + }); + }); + }); +} + +function shouldBehaveLikeERC777OperatorBurn(holder, operator, data, operatorData) { + describe('operator burn', function () { + context('when the sender has tokens', async function () { + shouldOperatorBurnTokens(holder, operator, new BN('0'), data, operatorData); + shouldOperatorBurnTokens(holder, operator, new BN('1'), data, operatorData); + + it('reverts when burning more than the balance', async function () { + const balance = await this.token.balanceOf(holder); + await expectRevert.unspecified( + this.token.operatorBurn(holder, balance.addn(1), data, operatorData, { from: operator }), + ); + }); + }); + + context('when the sender has no tokens', function () { + removeBalance(holder); + + shouldOperatorBurnTokens(holder, operator, new BN('0'), data, operatorData); + + it('reverts when burning a non-zero amount', async function () { + await expectRevert.unspecified( + this.token.operatorBurn(holder, new BN('1'), data, operatorData, { from: operator }), + ); + }); + + it('reverts when burning from the zero address', async function () { + // This is not yet reflected in the spec + await expectRevert.unspecified( + this.token.operatorBurn(ZERO_ADDRESS, new BN('0'), data, operatorData, { from: operator }), + ); + }); + }); + }); +} + +function shouldBehaveLikeERC777UnauthorizedOperatorBurn(holder, operator, data, operatorData) { + describe('operator burn', function () { + it('reverts', async function () { + await expectRevert.unspecified(this.token.operatorBurn(holder, new BN('0'), data, operatorData)); + }); + }); +} + +function shouldDirectSendTokens(from, to, amount, data) { + shouldSendTokens(from, null, to, amount, data, null); +} + +function shouldOperatorSendTokens(from, operator, to, amount, data, operatorData) { + shouldSendTokens(from, operator, to, amount, data, operatorData); +} + +function shouldSendTokens(from, operator, to, amount, data, operatorData) { + const operatorCall = operator !== null; + + it(`${operatorCall ? 'operator ' : ''}can send an amount of ${amount}`, async function () { + const initialTotalSupply = await this.token.totalSupply(); + const initialFromBalance = await this.token.balanceOf(from); + const initialToBalance = await this.token.balanceOf(to); + + let receipt; + if (!operatorCall) { + receipt = await this.token.send(to, amount, data, { from }); + expectEvent(receipt, 'Sent', { + operator: from, + from, + to, + amount, + data, + operatorData: null, + }); + } else { + receipt = await this.token.operatorSend(from, to, amount, data, operatorData, { from: operator }); + expectEvent(receipt, 'Sent', { + operator, + from, + to, + amount, + data, + operatorData, + }); + } + + expectEvent(receipt, 'Transfer', { + from, + to, + value: amount, + }); + + const finalTotalSupply = await this.token.totalSupply(); + const finalFromBalance = await this.token.balanceOf(from); + const finalToBalance = await this.token.balanceOf(to); + + expect(finalTotalSupply).to.be.bignumber.equal(initialTotalSupply); + expect(finalToBalance.sub(initialToBalance)).to.be.bignumber.equal(amount); + expect(finalFromBalance.sub(initialFromBalance)).to.be.bignumber.equal(amount.neg()); + }); +} + +function shouldDirectBurnTokens(from, amount, data) { + shouldBurnTokens(from, null, amount, data, null); +} + +function shouldOperatorBurnTokens(from, operator, amount, data, operatorData) { + shouldBurnTokens(from, operator, amount, data, operatorData); +} + +function shouldBurnTokens(from, operator, amount, data, operatorData) { + const operatorCall = operator !== null; + + it(`${operatorCall ? 'operator ' : ''}can burn an amount of ${amount}`, async function () { + const initialTotalSupply = await this.token.totalSupply(); + const initialFromBalance = await this.token.balanceOf(from); + + let receipt; + if (!operatorCall) { + receipt = await this.token.burn(amount, data, { from }); + expectEvent(receipt, 'Burned', { + operator: from, + from, + amount, + data, + operatorData: null, + }); + } else { + receipt = await this.token.operatorBurn(from, amount, data, operatorData, { from: operator }); + expectEvent(receipt, 'Burned', { + operator, + from, + amount, + data, + operatorData, + }); + } + + expectEvent(receipt, 'Transfer', { + from, + to: ZERO_ADDRESS, + value: amount, + }); + + const finalTotalSupply = await this.token.totalSupply(); + const finalFromBalance = await this.token.balanceOf(from); + + expect(finalTotalSupply.sub(initialTotalSupply)).to.be.bignumber.equal(amount.neg()); + expect(finalFromBalance.sub(initialFromBalance)).to.be.bignumber.equal(amount.neg()); + }); +} + +function shouldBehaveLikeERC777InternalMint(recipient, operator, amount, data, operatorData) { + shouldInternalMintTokens(operator, recipient, new BN('0'), data, operatorData); + shouldInternalMintTokens(operator, recipient, amount, data, operatorData); + + it('reverts when minting tokens for the zero address', async function () { + await expectRevert.unspecified( + this.token.$_mint(ZERO_ADDRESS, amount, data, operatorData, true, { from: operator }), + ); + }); +} + +function shouldInternalMintTokens(operator, to, amount, data, operatorData) { + it(`can (internal) mint an amount of ${amount}`, async function () { + const initialTotalSupply = await this.token.totalSupply(); + const initialToBalance = await this.token.balanceOf(to); + + const receipt = await this.token.$_mint(to, amount, data, operatorData, true, { from: operator }); + + expectEvent(receipt, 'Minted', { + operator, + to, + amount, + data, + operatorData, + }); + + expectEvent(receipt, 'Transfer', { + from: ZERO_ADDRESS, + to, + value: amount, + }); + + const finalTotalSupply = await this.token.totalSupply(); + const finalToBalance = await this.token.balanceOf(to); + + expect(finalTotalSupply.sub(initialTotalSupply)).to.be.bignumber.equal(amount); + expect(finalToBalance.sub(initialToBalance)).to.be.bignumber.equal(amount); + }); +} + +function shouldBehaveLikeERC777SendBurnMintInternalWithReceiveHook(operator, amount, data, operatorData) { + context('when TokensRecipient reverts', function () { + beforeEach(async function () { + await this.tokensRecipientImplementer.setShouldRevertReceive(true); + }); + + it('send reverts', async function () { + await expectRevert.unspecified(sendFromHolder(this.token, this.sender, this.recipient, amount, data)); + }); + + it('operatorSend reverts', async function () { + await expectRevert.unspecified( + this.token.operatorSend(this.sender, this.recipient, amount, data, operatorData, { from: operator }), + ); + }); + + it('mint (internal) reverts', async function () { + await expectRevert.unspecified( + this.token.$_mint(this.recipient, amount, data, operatorData, true, { from: operator }), + ); + }); + }); + + context('when TokensRecipient does not revert', function () { + beforeEach(async function () { + await this.tokensRecipientImplementer.setShouldRevertSend(false); + }); + + it('TokensRecipient receives send data and is called after state mutation', async function () { + const { tx } = await sendFromHolder(this.token, this.sender, this.recipient, amount, data); + + const postSenderBalance = await this.token.balanceOf(this.sender); + const postRecipientBalance = await this.token.balanceOf(this.recipient); + + await assertTokensReceivedCalled( + this.token, + tx, + this.sender, + this.sender, + this.recipient, + amount, + data, + null, + postSenderBalance, + postRecipientBalance, + ); + }); + + it('TokensRecipient receives operatorSend data and is called after state mutation', async function () { + const { tx } = await this.token.operatorSend(this.sender, this.recipient, amount, data, operatorData, { + from: operator, + }); + + const postSenderBalance = await this.token.balanceOf(this.sender); + const postRecipientBalance = await this.token.balanceOf(this.recipient); + + await assertTokensReceivedCalled( + this.token, + tx, + operator, + this.sender, + this.recipient, + amount, + data, + operatorData, + postSenderBalance, + postRecipientBalance, + ); + }); + + it('TokensRecipient receives mint (internal) data and is called after state mutation', async function () { + const { tx } = await this.token.$_mint(this.recipient, amount, data, operatorData, true, { from: operator }); + + const postRecipientBalance = await this.token.balanceOf(this.recipient); + + await assertTokensReceivedCalled( + this.token, + tx, + operator, + ZERO_ADDRESS, + this.recipient, + amount, + data, + operatorData, + new BN('0'), + postRecipientBalance, + ); + }); + }); +} + +function shouldBehaveLikeERC777SendBurnWithSendHook(operator, amount, data, operatorData) { + context('when TokensSender reverts', function () { + beforeEach(async function () { + await this.tokensSenderImplementer.setShouldRevertSend(true); + }); + + it('send reverts', async function () { + await expectRevert.unspecified(sendFromHolder(this.token, this.sender, this.recipient, amount, data)); + }); + + it('operatorSend reverts', async function () { + await expectRevert.unspecified( + this.token.operatorSend(this.sender, this.recipient, amount, data, operatorData, { from: operator }), + ); + }); + + it('burn reverts', async function () { + await expectRevert.unspecified(burnFromHolder(this.token, this.sender, amount, data)); + }); + + it('operatorBurn reverts', async function () { + await expectRevert.unspecified( + this.token.operatorBurn(this.sender, amount, data, operatorData, { from: operator }), + ); + }); + }); + + context('when TokensSender does not revert', function () { + beforeEach(async function () { + await this.tokensSenderImplementer.setShouldRevertSend(false); + }); + + it('TokensSender receives send data and is called before state mutation', async function () { + const preSenderBalance = await this.token.balanceOf(this.sender); + const preRecipientBalance = await this.token.balanceOf(this.recipient); + + const { tx } = await sendFromHolder(this.token, this.sender, this.recipient, amount, data); + + await assertTokensToSendCalled( + this.token, + tx, + this.sender, + this.sender, + this.recipient, + amount, + data, + null, + preSenderBalance, + preRecipientBalance, + ); + }); + + it('TokensSender receives operatorSend data and is called before state mutation', async function () { + const preSenderBalance = await this.token.balanceOf(this.sender); + const preRecipientBalance = await this.token.balanceOf(this.recipient); + + const { tx } = await this.token.operatorSend(this.sender, this.recipient, amount, data, operatorData, { + from: operator, + }); + + await assertTokensToSendCalled( + this.token, + tx, + operator, + this.sender, + this.recipient, + amount, + data, + operatorData, + preSenderBalance, + preRecipientBalance, + ); + }); + + it('TokensSender receives burn data and is called before state mutation', async function () { + const preSenderBalance = await this.token.balanceOf(this.sender); + + const { tx } = await burnFromHolder(this.token, this.sender, amount, data, { from: this.sender }); + + await assertTokensToSendCalled( + this.token, + tx, + this.sender, + this.sender, + ZERO_ADDRESS, + amount, + data, + null, + preSenderBalance, + ); + }); + + it('TokensSender receives operatorBurn data and is called before state mutation', async function () { + const preSenderBalance = await this.token.balanceOf(this.sender); + + const { tx } = await this.token.operatorBurn(this.sender, amount, data, operatorData, { from: operator }); + + await assertTokensToSendCalled( + this.token, + tx, + operator, + this.sender, + ZERO_ADDRESS, + amount, + data, + operatorData, + preSenderBalance, + ); + }); + }); +} + +function removeBalance(holder) { + beforeEach(async function () { + await this.token.burn(await this.token.balanceOf(holder), '0x', { from: holder }); + expect(await this.token.balanceOf(holder)).to.be.bignumber.equal('0'); + }); +} + +async function assertTokensReceivedCalled( + token, + txHash, + operator, + from, + to, + amount, + data, + operatorData, + fromBalance, + toBalance = '0', +) { + await expectEvent.inTransaction(txHash, ERC777SenderRecipientMock, 'TokensReceivedCalled', { + operator, + from, + to, + amount, + data, + operatorData, + token: token.address, + fromBalance, + toBalance, + }); +} + +async function assertTokensToSendCalled( + token, + txHash, + operator, + from, + to, + amount, + data, + operatorData, + fromBalance, + toBalance = '0', +) { + await expectEvent.inTransaction(txHash, ERC777SenderRecipientMock, 'TokensToSendCalled', { + operator, + from, + to, + amount, + data, + operatorData, + token: token.address, + fromBalance, + toBalance, + }); +} + +async function sendFromHolder(token, holder, to, amount, data) { + if ((await web3.eth.getCode(holder)).length <= '0x'.length) { + return token.send(to, amount, data, { from: holder }); + } else { + // assume holder is ERC777SenderRecipientMock contract + return (await ERC777SenderRecipientMock.at(holder)).send(token.address, to, amount, data); + } +} + +async function burnFromHolder(token, holder, amount, data) { + if ((await web3.eth.getCode(holder)).length <= '0x'.length) { + return token.burn(amount, data, { from: holder }); + } else { + // assume holder is ERC777SenderRecipientMock contract + return (await ERC777SenderRecipientMock.at(holder)).burn(token.address, amount, data); + } +} + +module.exports = { + shouldBehaveLikeERC777DirectSendBurn, + shouldBehaveLikeERC777OperatorSendBurn, + shouldBehaveLikeERC777UnauthorizedOperatorSendBurn, + shouldBehaveLikeERC777InternalMint, + shouldBehaveLikeERC777SendBurnMintInternalWithReceiveHook, + shouldBehaveLikeERC777SendBurnWithSendHook, +}; diff --git a/lib/openzeppelin-contracts/test/token/ERC777/ERC777.test.js b/lib/openzeppelin-contracts/test/token/ERC777/ERC777.test.js new file mode 100644 index 0000000..44bc253 --- /dev/null +++ b/lib/openzeppelin-contracts/test/token/ERC777/ERC777.test.js @@ -0,0 +1,556 @@ +const { BN, constants, expectEvent, expectRevert, singletons } = require('@openzeppelin/test-helpers'); +const { ZERO_ADDRESS } = constants; + +const { expect } = require('chai'); + +const { + shouldBehaveLikeERC777DirectSendBurn, + shouldBehaveLikeERC777OperatorSendBurn, + shouldBehaveLikeERC777UnauthorizedOperatorSendBurn, + shouldBehaveLikeERC777InternalMint, + shouldBehaveLikeERC777SendBurnMintInternalWithReceiveHook, + shouldBehaveLikeERC777SendBurnWithSendHook, +} = require('./ERC777.behavior'); + +const { shouldBehaveLikeERC20, shouldBehaveLikeERC20Approve } = require('../ERC20/ERC20.behavior'); + +const ERC777 = artifacts.require('$ERC777Mock'); +const ERC777SenderRecipientMock = artifacts.require('$ERC777SenderRecipientMock'); + +contract('ERC777', function (accounts) { + const [registryFunder, holder, defaultOperatorA, defaultOperatorB, newOperator, anyone] = accounts; + + const initialSupply = new BN('10000'); + const name = 'ERC777Test'; + const symbol = '777T'; + const data = web3.utils.sha3('OZ777TestData'); + const operatorData = web3.utils.sha3('OZ777TestOperatorData'); + + const defaultOperators = [defaultOperatorA, defaultOperatorB]; + + beforeEach(async function () { + this.erc1820 = await singletons.ERC1820Registry(registryFunder); + }); + + context('with default operators', function () { + beforeEach(async function () { + this.token = await ERC777.new(name, symbol, defaultOperators); + await this.token.$_mint(holder, initialSupply, '0x', '0x'); + }); + + describe('as an ERC20 token', function () { + shouldBehaveLikeERC20('ERC777', initialSupply, holder, anyone, defaultOperatorA); + + describe('_approve', function () { + shouldBehaveLikeERC20Approve('ERC777', holder, anyone, initialSupply, function (owner, spender, amount) { + return this.token.$_approve(owner, spender, amount); + }); + + describe('when the owner is the zero address', function () { + it('reverts', async function () { + await expectRevert( + this.token.$_approve(ZERO_ADDRESS, anyone, initialSupply), + 'ERC777: approve from the zero address', + ); + }); + }); + }); + }); + + it('does not emit AuthorizedOperator events for default operators', async function () { + await expectEvent.notEmitted.inConstruction(this.token, 'AuthorizedOperator'); + }); + + describe('basic information', function () { + it('returns the name', async function () { + expect(await this.token.name()).to.equal(name); + }); + + it('returns the symbol', async function () { + expect(await this.token.symbol()).to.equal(symbol); + }); + + it('returns a granularity of 1', async function () { + expect(await this.token.granularity()).to.be.bignumber.equal('1'); + }); + + it('returns the default operators', async function () { + expect(await this.token.defaultOperators()).to.deep.equal(defaultOperators); + }); + + it('default operators are operators for all accounts', async function () { + for (const operator of defaultOperators) { + expect(await this.token.isOperatorFor(operator, anyone)).to.equal(true); + } + }); + + it('returns the total supply', async function () { + expect(await this.token.totalSupply()).to.be.bignumber.equal(initialSupply); + }); + + it('returns 18 when decimals is called', async function () { + expect(await this.token.decimals()).to.be.bignumber.equal('18'); + }); + + it('the ERC777Token interface is registered in the registry', async function () { + expect( + await this.erc1820.getInterfaceImplementer(this.token.address, web3.utils.soliditySha3('ERC777Token')), + ).to.equal(this.token.address); + }); + + it('the ERC20Token interface is registered in the registry', async function () { + expect( + await this.erc1820.getInterfaceImplementer(this.token.address, web3.utils.soliditySha3('ERC20Token')), + ).to.equal(this.token.address); + }); + }); + + describe('balanceOf', function () { + context('for an account with no tokens', function () { + it('returns zero', async function () { + expect(await this.token.balanceOf(anyone)).to.be.bignumber.equal('0'); + }); + }); + + context('for an account with tokens', function () { + it('returns their balance', async function () { + expect(await this.token.balanceOf(holder)).to.be.bignumber.equal(initialSupply); + }); + }); + }); + + context('with no ERC777TokensSender and no ERC777TokensRecipient implementers', function () { + describe('send/burn', function () { + shouldBehaveLikeERC777DirectSendBurn(holder, anyone, data); + + context('with self operator', function () { + shouldBehaveLikeERC777OperatorSendBurn(holder, anyone, holder, data, operatorData); + }); + + context('with first default operator', function () { + shouldBehaveLikeERC777OperatorSendBurn(holder, anyone, defaultOperatorA, data, operatorData); + }); + + context('with second default operator', function () { + shouldBehaveLikeERC777OperatorSendBurn(holder, anyone, defaultOperatorB, data, operatorData); + }); + + context('before authorizing a new operator', function () { + shouldBehaveLikeERC777UnauthorizedOperatorSendBurn(holder, anyone, newOperator, data, operatorData); + }); + + context('with new authorized operator', function () { + beforeEach(async function () { + await this.token.authorizeOperator(newOperator, { from: holder }); + }); + + shouldBehaveLikeERC777OperatorSendBurn(holder, anyone, newOperator, data, operatorData); + + context('with revoked operator', function () { + beforeEach(async function () { + await this.token.revokeOperator(newOperator, { from: holder }); + }); + + shouldBehaveLikeERC777UnauthorizedOperatorSendBurn(holder, anyone, newOperator, data, operatorData); + }); + }); + }); + + describe('mint (internal)', function () { + const to = anyone; + const amount = new BN('5'); + + context('with default operator', function () { + const operator = defaultOperatorA; + + shouldBehaveLikeERC777InternalMint(to, operator, amount, data, operatorData); + }); + + context('with non operator', function () { + const operator = newOperator; + + shouldBehaveLikeERC777InternalMint(to, operator, amount, data, operatorData); + }); + }); + + describe('mint (internal extended)', function () { + const amount = new BN('5'); + + context('to anyone', function () { + beforeEach(async function () { + this.recipient = anyone; + }); + + context('with default operator', function () { + const operator = defaultOperatorA; + + it('without requireReceptionAck', async function () { + await this.token.$_mint(this.recipient, amount, data, operatorData, false, { from: operator }); + }); + + it('with requireReceptionAck', async function () { + await this.token.$_mint(this.recipient, amount, data, operatorData, true, { from: operator }); + }); + }); + + context('with non operator', function () { + const operator = newOperator; + + it('without requireReceptionAck', async function () { + await this.token.$_mint(this.recipient, amount, data, operatorData, false, { from: operator }); + }); + + it('with requireReceptionAck', async function () { + await this.token.$_mint(this.recipient, amount, data, operatorData, true, { from: operator }); + }); + }); + }); + + context('to non ERC777TokensRecipient implementer', function () { + beforeEach(async function () { + this.tokensRecipientImplementer = await ERC777SenderRecipientMock.new(); + this.recipient = this.tokensRecipientImplementer.address; + }); + + context('with default operator', function () { + const operator = defaultOperatorA; + + it('without requireReceptionAck', async function () { + await this.token.$_mint(this.recipient, amount, data, operatorData, false, { from: operator }); + }); + + it('with requireReceptionAck', async function () { + await expectRevert( + this.token.$_mint(this.recipient, amount, data, operatorData, true, { from: operator }), + 'ERC777: token recipient contract has no implementer for ERC777TokensRecipient', + ); + }); + }); + + context('with non operator', function () { + const operator = newOperator; + + it('without requireReceptionAck', async function () { + await this.token.$_mint(this.recipient, amount, data, operatorData, false, { from: operator }); + }); + + it('with requireReceptionAck', async function () { + await expectRevert( + this.token.$_mint(this.recipient, amount, data, operatorData, true, { from: operator }), + 'ERC777: token recipient contract has no implementer for ERC777TokensRecipient', + ); + }); + }); + }); + }); + }); + + describe('operator management', function () { + it('accounts are their own operator', async function () { + expect(await this.token.isOperatorFor(holder, holder)).to.equal(true); + }); + + it('reverts when self-authorizing', async function () { + await expectRevert( + this.token.authorizeOperator(holder, { from: holder }), + 'ERC777: authorizing self as operator', + ); + }); + + it('reverts when self-revoking', async function () { + await expectRevert(this.token.revokeOperator(holder, { from: holder }), 'ERC777: revoking self as operator'); + }); + + it('non-operators can be revoked', async function () { + expect(await this.token.isOperatorFor(newOperator, holder)).to.equal(false); + + const receipt = await this.token.revokeOperator(newOperator, { from: holder }); + expectEvent(receipt, 'RevokedOperator', { operator: newOperator, tokenHolder: holder }); + + expect(await this.token.isOperatorFor(newOperator, holder)).to.equal(false); + }); + + it('non-operators can be authorized', async function () { + expect(await this.token.isOperatorFor(newOperator, holder)).to.equal(false); + + const receipt = await this.token.authorizeOperator(newOperator, { from: holder }); + expectEvent(receipt, 'AuthorizedOperator', { operator: newOperator, tokenHolder: holder }); + + expect(await this.token.isOperatorFor(newOperator, holder)).to.equal(true); + }); + + describe('new operators', function () { + beforeEach(async function () { + await this.token.authorizeOperator(newOperator, { from: holder }); + }); + + it('are not added to the default operators list', async function () { + expect(await this.token.defaultOperators()).to.deep.equal(defaultOperators); + }); + + it('can be re-authorized', async function () { + const receipt = await this.token.authorizeOperator(newOperator, { from: holder }); + expectEvent(receipt, 'AuthorizedOperator', { operator: newOperator, tokenHolder: holder }); + + expect(await this.token.isOperatorFor(newOperator, holder)).to.equal(true); + }); + + it('can be revoked', async function () { + const receipt = await this.token.revokeOperator(newOperator, { from: holder }); + expectEvent(receipt, 'RevokedOperator', { operator: newOperator, tokenHolder: holder }); + + expect(await this.token.isOperatorFor(newOperator, holder)).to.equal(false); + }); + }); + + describe('default operators', function () { + it('can be re-authorized', async function () { + const receipt = await this.token.authorizeOperator(defaultOperatorA, { from: holder }); + expectEvent(receipt, 'AuthorizedOperator', { operator: defaultOperatorA, tokenHolder: holder }); + + expect(await this.token.isOperatorFor(defaultOperatorA, holder)).to.equal(true); + }); + + it('can be revoked', async function () { + const receipt = await this.token.revokeOperator(defaultOperatorA, { from: holder }); + expectEvent(receipt, 'RevokedOperator', { operator: defaultOperatorA, tokenHolder: holder }); + + expect(await this.token.isOperatorFor(defaultOperatorA, holder)).to.equal(false); + }); + + it('cannot be revoked for themselves', async function () { + await expectRevert( + this.token.revokeOperator(defaultOperatorA, { from: defaultOperatorA }), + 'ERC777: revoking self as operator', + ); + }); + + context('with revoked default operator', function () { + beforeEach(async function () { + await this.token.revokeOperator(defaultOperatorA, { from: holder }); + }); + + it('default operator is not revoked for other holders', async function () { + expect(await this.token.isOperatorFor(defaultOperatorA, anyone)).to.equal(true); + }); + + it('other default operators are not revoked', async function () { + expect(await this.token.isOperatorFor(defaultOperatorB, holder)).to.equal(true); + }); + + it('default operators list is not modified', async function () { + expect(await this.token.defaultOperators()).to.deep.equal(defaultOperators); + }); + + it('revoked default operator can be re-authorized', async function () { + const receipt = await this.token.authorizeOperator(defaultOperatorA, { from: holder }); + expectEvent(receipt, 'AuthorizedOperator', { operator: defaultOperatorA, tokenHolder: holder }); + + expect(await this.token.isOperatorFor(defaultOperatorA, holder)).to.equal(true); + }); + }); + }); + }); + + describe('send and receive hooks', function () { + const amount = new BN('1'); + const operator = defaultOperatorA; + // sender and recipient are stored inside 'this', since in some tests their addresses are determined dynamically + + describe('tokensReceived', function () { + beforeEach(function () { + this.sender = holder; + }); + + context('with no ERC777TokensRecipient implementer', function () { + context('with contract recipient', function () { + beforeEach(async function () { + this.tokensRecipientImplementer = await ERC777SenderRecipientMock.new(); + this.recipient = this.tokensRecipientImplementer.address; + + // Note that tokensRecipientImplementer doesn't implement the recipient interface for the recipient + }); + + it('send reverts', async function () { + await expectRevert( + this.token.send(this.recipient, amount, data, { from: holder }), + 'ERC777: token recipient contract has no implementer for ERC777TokensRecipient', + ); + }); + + it('operatorSend reverts', async function () { + await expectRevert( + this.token.operatorSend(this.sender, this.recipient, amount, data, operatorData, { from: operator }), + 'ERC777: token recipient contract has no implementer for ERC777TokensRecipient', + ); + }); + + it('mint (internal) reverts', async function () { + await expectRevert( + this.token.$_mint(this.recipient, amount, data, operatorData, true, { from: operator }), + 'ERC777: token recipient contract has no implementer for ERC777TokensRecipient', + ); + }); + + it('(ERC20) transfer succeeds', async function () { + await this.token.transfer(this.recipient, amount, { from: holder }); + }); + + it('(ERC20) transferFrom succeeds', async function () { + const approved = anyone; + await this.token.approve(approved, amount, { from: this.sender }); + await this.token.transferFrom(this.sender, this.recipient, amount, { from: approved }); + }); + }); + }); + + context('with ERC777TokensRecipient implementer', function () { + context('with contract as implementer for an externally owned account', function () { + beforeEach(async function () { + this.tokensRecipientImplementer = await ERC777SenderRecipientMock.new(); + this.recipient = anyone; + + await this.tokensRecipientImplementer.recipientFor(this.recipient); + + await this.erc1820.setInterfaceImplementer( + this.recipient, + web3.utils.soliditySha3('ERC777TokensRecipient'), + this.tokensRecipientImplementer.address, + { from: this.recipient }, + ); + }); + + shouldBehaveLikeERC777SendBurnMintInternalWithReceiveHook(operator, amount, data, operatorData); + }); + + context('with contract as implementer for another contract', function () { + beforeEach(async function () { + this.recipientContract = await ERC777SenderRecipientMock.new(); + this.recipient = this.recipientContract.address; + + this.tokensRecipientImplementer = await ERC777SenderRecipientMock.new(); + await this.tokensRecipientImplementer.recipientFor(this.recipient); + await this.recipientContract.registerRecipient(this.tokensRecipientImplementer.address); + }); + + shouldBehaveLikeERC777SendBurnMintInternalWithReceiveHook(operator, amount, data, operatorData); + }); + + context('with contract as implementer for itself', function () { + beforeEach(async function () { + this.tokensRecipientImplementer = await ERC777SenderRecipientMock.new(); + this.recipient = this.tokensRecipientImplementer.address; + + await this.tokensRecipientImplementer.recipientFor(this.recipient); + }); + + shouldBehaveLikeERC777SendBurnMintInternalWithReceiveHook(operator, amount, data, operatorData); + }); + }); + }); + + describe('tokensToSend', function () { + beforeEach(function () { + this.recipient = anyone; + }); + + context('with a contract as implementer for an externally owned account', function () { + beforeEach(async function () { + this.tokensSenderImplementer = await ERC777SenderRecipientMock.new(); + this.sender = holder; + + await this.tokensSenderImplementer.senderFor(this.sender); + + await this.erc1820.setInterfaceImplementer( + this.sender, + web3.utils.soliditySha3('ERC777TokensSender'), + this.tokensSenderImplementer.address, + { from: this.sender }, + ); + }); + + shouldBehaveLikeERC777SendBurnWithSendHook(operator, amount, data, operatorData); + }); + + context('with contract as implementer for another contract', function () { + beforeEach(async function () { + this.senderContract = await ERC777SenderRecipientMock.new(); + this.sender = this.senderContract.address; + + this.tokensSenderImplementer = await ERC777SenderRecipientMock.new(); + await this.tokensSenderImplementer.senderFor(this.sender); + await this.senderContract.registerSender(this.tokensSenderImplementer.address); + + // For the contract to be able to receive tokens (that it can later send), it must also implement the + // recipient interface. + + await this.senderContract.recipientFor(this.sender); + await this.token.send(this.sender, amount, data, { from: holder }); + }); + + shouldBehaveLikeERC777SendBurnWithSendHook(operator, amount, data, operatorData); + }); + + context('with a contract as implementer for itself', function () { + beforeEach(async function () { + this.tokensSenderImplementer = await ERC777SenderRecipientMock.new(); + this.sender = this.tokensSenderImplementer.address; + + await this.tokensSenderImplementer.senderFor(this.sender); + + // For the contract to be able to receive tokens (that it can later send), it must also implement the + // recipient interface. + + await this.tokensSenderImplementer.recipientFor(this.sender); + await this.token.send(this.sender, amount, data, { from: holder }); + }); + + shouldBehaveLikeERC777SendBurnWithSendHook(operator, amount, data, operatorData); + }); + }); + }); + }); + + context('with no default operators', function () { + beforeEach(async function () { + this.token = await ERC777.new(name, symbol, []); + }); + + it('default operators list is empty', async function () { + expect(await this.token.defaultOperators()).to.deep.equal([]); + }); + }); + + describe('relative order of hooks', function () { + beforeEach(async function () { + await singletons.ERC1820Registry(registryFunder); + this.sender = await ERC777SenderRecipientMock.new(); + await this.sender.registerRecipient(this.sender.address); + await this.sender.registerSender(this.sender.address); + this.token = await ERC777.new(name, symbol, []); + await this.token.$_mint(this.sender.address, 1, '0x', '0x'); + }); + + it('send', async function () { + const { receipt } = await this.sender.send(this.token.address, anyone, 1, '0x'); + + const internalBeforeHook = receipt.logs.findIndex(l => l.event === 'BeforeTokenTransfer'); + expect(internalBeforeHook).to.be.gte(0); + const externalSendHook = receipt.logs.findIndex(l => l.event === 'TokensToSendCalled'); + expect(externalSendHook).to.be.gte(0); + + expect(externalSendHook).to.be.lt(internalBeforeHook); + }); + + it('burn', async function () { + const { receipt } = await this.sender.burn(this.token.address, 1, '0x'); + + const internalBeforeHook = receipt.logs.findIndex(l => l.event === 'BeforeTokenTransfer'); + expect(internalBeforeHook).to.be.gte(0); + const externalSendHook = receipt.logs.findIndex(l => l.event === 'TokensToSendCalled'); + expect(externalSendHook).to.be.gte(0); + + expect(externalSendHook).to.be.lt(internalBeforeHook); + }); + }); +}); diff --git a/lib/openzeppelin-contracts/test/token/ERC777/presets/ERC777PresetFixedSupply.test.js b/lib/openzeppelin-contracts/test/token/ERC777/presets/ERC777PresetFixedSupply.test.js new file mode 100644 index 0000000..e6a842b --- /dev/null +++ b/lib/openzeppelin-contracts/test/token/ERC777/presets/ERC777PresetFixedSupply.test.js @@ -0,0 +1,49 @@ +const { BN, singletons } = require('@openzeppelin/test-helpers'); + +const { expect } = require('chai'); + +const ERC777PresetFixedSupply = artifacts.require('ERC777PresetFixedSupply'); + +contract('ERC777PresetFixedSupply', function (accounts) { + const [registryFunder, owner, defaultOperatorA, defaultOperatorB, anyone] = accounts; + + const initialSupply = new BN('10000'); + const name = 'ERC777Preset'; + const symbol = '777P'; + + const defaultOperators = [defaultOperatorA, defaultOperatorB]; + + before(async function () { + await singletons.ERC1820Registry(registryFunder); + }); + + beforeEach(async function () { + this.token = await ERC777PresetFixedSupply.new(name, symbol, defaultOperators, initialSupply, owner); + }); + + it('returns the name', async function () { + expect(await this.token.name()).to.equal(name); + }); + + it('returns the symbol', async function () { + expect(await this.token.symbol()).to.equal(symbol); + }); + + it('returns the default operators', async function () { + expect(await this.token.defaultOperators()).to.deep.equal(defaultOperators); + }); + + it('default operators are operators for all accounts', async function () { + for (const operator of defaultOperators) { + expect(await this.token.isOperatorFor(operator, anyone)).to.equal(true); + } + }); + + it('returns the total supply equal to initial supply', async function () { + expect(await this.token.totalSupply()).to.be.bignumber.equal(initialSupply); + }); + + it('returns the balance of owner equal to initial supply', async function () { + expect(await this.token.balanceOf(owner)).to.be.bignumber.equal(initialSupply); + }); +}); diff --git a/lib/openzeppelin-contracts/test/token/common/ERC2981.behavior.js b/lib/openzeppelin-contracts/test/token/common/ERC2981.behavior.js new file mode 100644 index 0000000..5d0f677 --- /dev/null +++ b/lib/openzeppelin-contracts/test/token/common/ERC2981.behavior.js @@ -0,0 +1,157 @@ +const { BN, constants, expectRevert } = require('@openzeppelin/test-helpers'); +const { expect } = require('chai'); +const { ZERO_ADDRESS } = constants; + +const { shouldSupportInterfaces } = require('../../utils/introspection/SupportsInterface.behavior'); + +function shouldBehaveLikeERC2981() { + const royaltyFraction = new BN('10'); + + shouldSupportInterfaces(['ERC2981']); + + describe('default royalty', function () { + beforeEach(async function () { + await this.token.$_setDefaultRoyalty(this.account1, royaltyFraction); + }); + + it('checks royalty is set', async function () { + const royalty = new BN((this.salePrice * royaltyFraction) / 10000); + + const initInfo = await this.token.royaltyInfo(this.tokenId1, this.salePrice); + + expect(initInfo[0]).to.be.equal(this.account1); + expect(initInfo[1]).to.be.bignumber.equal(royalty); + }); + + it('updates royalty amount', async function () { + const newPercentage = new BN('25'); + + // Updated royalty check + await this.token.$_setDefaultRoyalty(this.account1, newPercentage); + const royalty = new BN((this.salePrice * newPercentage) / 10000); + const newInfo = await this.token.royaltyInfo(this.tokenId1, this.salePrice); + + expect(newInfo[0]).to.be.equal(this.account1); + expect(newInfo[1]).to.be.bignumber.equal(royalty); + }); + + it('holds same royalty value for different tokens', async function () { + const newPercentage = new BN('20'); + await this.token.$_setDefaultRoyalty(this.account1, newPercentage); + + const token1Info = await this.token.royaltyInfo(this.tokenId1, this.salePrice); + const token2Info = await this.token.royaltyInfo(this.tokenId2, this.salePrice); + + expect(token1Info[1]).to.be.bignumber.equal(token2Info[1]); + }); + + it('Remove royalty information', async function () { + const newValue = new BN('0'); + await this.token.$_deleteDefaultRoyalty(); + + const token1Info = await this.token.royaltyInfo(this.tokenId1, this.salePrice); + const token2Info = await this.token.royaltyInfo(this.tokenId2, this.salePrice); + // Test royalty info is still persistent across all tokens + expect(token1Info[0]).to.be.bignumber.equal(token2Info[0]); + expect(token1Info[1]).to.be.bignumber.equal(token2Info[1]); + // Test information was deleted + expect(token1Info[0]).to.be.equal(ZERO_ADDRESS); + expect(token1Info[1]).to.be.bignumber.equal(newValue); + }); + + it('reverts if invalid parameters', async function () { + await expectRevert(this.token.$_setDefaultRoyalty(ZERO_ADDRESS, royaltyFraction), 'ERC2981: invalid receiver'); + + await expectRevert( + this.token.$_setDefaultRoyalty(this.account1, new BN('11000')), + 'ERC2981: royalty fee will exceed salePrice', + ); + }); + }); + + describe('token based royalty', function () { + beforeEach(async function () { + await this.token.$_setTokenRoyalty(this.tokenId1, this.account1, royaltyFraction); + }); + + it('updates royalty amount', async function () { + const newPercentage = new BN('25'); + let royalty = new BN((this.salePrice * royaltyFraction) / 10000); + // Initial royalty check + const initInfo = await this.token.royaltyInfo(this.tokenId1, this.salePrice); + + expect(initInfo[0]).to.be.equal(this.account1); + expect(initInfo[1]).to.be.bignumber.equal(royalty); + + // Updated royalty check + await this.token.$_setTokenRoyalty(this.tokenId1, this.account1, newPercentage); + royalty = new BN((this.salePrice * newPercentage) / 10000); + const newInfo = await this.token.royaltyInfo(this.tokenId1, this.salePrice); + + expect(newInfo[0]).to.be.equal(this.account1); + expect(newInfo[1]).to.be.bignumber.equal(royalty); + }); + + it('holds different values for different tokens', async function () { + const newPercentage = new BN('20'); + await this.token.$_setTokenRoyalty(this.tokenId2, this.account1, newPercentage); + + const token1Info = await this.token.royaltyInfo(this.tokenId1, this.salePrice); + const token2Info = await this.token.royaltyInfo(this.tokenId2, this.salePrice); + + // must be different even at the same this.salePrice + expect(token1Info[1]).to.not.be.equal(token2Info.royaltyFraction); + }); + + it('reverts if invalid parameters', async function () { + await expectRevert( + this.token.$_setTokenRoyalty(this.tokenId1, ZERO_ADDRESS, royaltyFraction), + 'ERC2981: Invalid parameters', + ); + + await expectRevert( + this.token.$_setTokenRoyalty(this.tokenId1, this.account1, new BN('11000')), + 'ERC2981: royalty fee will exceed salePrice', + ); + }); + + it('can reset token after setting royalty', async function () { + const newPercentage = new BN('30'); + const royalty = new BN((this.salePrice * newPercentage) / 10000); + await this.token.$_setTokenRoyalty(this.tokenId1, this.account2, newPercentage); + + const tokenInfo = await this.token.royaltyInfo(this.tokenId1, this.salePrice); + + // Tokens must have own information + expect(tokenInfo[1]).to.be.bignumber.equal(royalty); + expect(tokenInfo[0]).to.be.equal(this.account2); + + await this.token.$_setTokenRoyalty(this.tokenId2, this.account1, new BN('0')); + const result = await this.token.royaltyInfo(this.tokenId2, this.salePrice); + // Token must not share default information + expect(result[0]).to.be.equal(this.account1); + expect(result[1]).to.be.bignumber.equal(new BN('0')); + }); + + it('can hold default and token royalty information', async function () { + const newPercentage = new BN('30'); + const royalty = new BN((this.salePrice * newPercentage) / 10000); + + await this.token.$_setTokenRoyalty(this.tokenId2, this.account2, newPercentage); + + const token1Info = await this.token.royaltyInfo(this.tokenId1, this.salePrice); + const token2Info = await this.token.royaltyInfo(this.tokenId2, this.salePrice); + // Tokens must not have same values + expect(token1Info[1]).to.not.be.bignumber.equal(token2Info[1]); + expect(token1Info[0]).to.not.be.equal(token2Info[0]); + + // Updated token must have new values + expect(token2Info[0]).to.be.equal(this.account2); + expect(token2Info[1]).to.be.bignumber.equal(royalty); + }); + }); +} + +module.exports = { + shouldBehaveLikeERC2981, +}; diff --git a/lib/openzeppelin-contracts/test/utils/Address.test.js b/lib/openzeppelin-contracts/test/utils/Address.test.js new file mode 100644 index 0000000..a78ae14 --- /dev/null +++ b/lib/openzeppelin-contracts/test/utils/Address.test.js @@ -0,0 +1,321 @@ +const { balance, constants, ether, expectRevert, send, expectEvent } = require('@openzeppelin/test-helpers'); +const { expect } = require('chai'); + +const Address = artifacts.require('$Address'); +const EtherReceiver = artifacts.require('EtherReceiverMock'); +const CallReceiverMock = artifacts.require('CallReceiverMock'); + +contract('Address', function (accounts) { + const [recipient, other] = accounts; + + beforeEach(async function () { + this.mock = await Address.new(); + }); + + describe('isContract', function () { + it('returns false for account address', async function () { + expect(await this.mock.$isContract(other)).to.equal(false); + }); + + it('returns true for contract address', async function () { + expect(await this.mock.$isContract(this.mock.address)).to.equal(true); + }); + }); + + describe('sendValue', function () { + beforeEach(async function () { + this.recipientTracker = await balance.tracker(recipient); + }); + + context('when sender contract has no funds', function () { + it('sends 0 wei', async function () { + await this.mock.$sendValue(other, 0); + + expect(await this.recipientTracker.delta()).to.be.bignumber.equal('0'); + }); + + it('reverts when sending non-zero amounts', async function () { + await expectRevert(this.mock.$sendValue(other, 1), 'Address: insufficient balance'); + }); + }); + + context('when sender contract has funds', function () { + const funds = ether('1'); + beforeEach(async function () { + await send.ether(other, this.mock.address, funds); + }); + + it('sends 0 wei', async function () { + await this.mock.$sendValue(recipient, 0); + expect(await this.recipientTracker.delta()).to.be.bignumber.equal('0'); + }); + + it('sends non-zero amounts', async function () { + await this.mock.$sendValue(recipient, funds.subn(1)); + expect(await this.recipientTracker.delta()).to.be.bignumber.equal(funds.subn(1)); + }); + + it('sends the whole balance', async function () { + await this.mock.$sendValue(recipient, funds); + expect(await this.recipientTracker.delta()).to.be.bignumber.equal(funds); + expect(await balance.current(this.mock.address)).to.be.bignumber.equal('0'); + }); + + it('reverts when sending more than the balance', async function () { + await expectRevert(this.mock.$sendValue(recipient, funds.addn(1)), 'Address: insufficient balance'); + }); + + context('with contract recipient', function () { + beforeEach(async function () { + this.target = await EtherReceiver.new(); + }); + + it('sends funds', async function () { + const tracker = await balance.tracker(this.target.address); + + await this.target.setAcceptEther(true); + await this.mock.$sendValue(this.target.address, funds); + + expect(await tracker.delta()).to.be.bignumber.equal(funds); + }); + + it('reverts on recipient revert', async function () { + await this.target.setAcceptEther(false); + await expectRevert( + this.mock.$sendValue(this.target.address, funds), + 'Address: unable to send value, recipient may have reverted', + ); + }); + }); + }); + }); + + describe('functionCall', function () { + beforeEach(async function () { + this.target = await CallReceiverMock.new(); + }); + + context('with valid contract receiver', function () { + it('calls the requested function', async function () { + const abiEncodedCall = this.target.contract.methods.mockFunction().encodeABI(); + + const receipt = await this.mock.$functionCall(this.target.address, abiEncodedCall); + + expectEvent(receipt, 'return$functionCall_address_bytes', { + ret0: web3.eth.abi.encodeParameters(['string'], ['0x1234']), + }); + await expectEvent.inTransaction(receipt.tx, CallReceiverMock, 'MockFunctionCalled'); + }); + + it('reverts when the called function reverts with no reason', async function () { + const abiEncodedCall = this.target.contract.methods.mockFunctionRevertsNoReason().encodeABI(); + + await expectRevert( + this.mock.$functionCall(this.target.address, abiEncodedCall), + 'Address: low-level call failed', + ); + }); + + it('reverts when the called function reverts, bubbling up the revert reason', async function () { + const abiEncodedCall = this.target.contract.methods.mockFunctionRevertsReason().encodeABI(); + + await expectRevert(this.mock.$functionCall(this.target.address, abiEncodedCall), 'CallReceiverMock: reverting'); + }); + + it('reverts when the called function runs out of gas', async function () { + const abiEncodedCall = this.target.contract.methods.mockFunctionOutOfGas().encodeABI(); + + await expectRevert( + this.mock.$functionCall(this.target.address, abiEncodedCall, { gas: '120000' }), + 'Address: low-level call failed', + ); + }); + + it('reverts when the called function throws', async function () { + const abiEncodedCall = this.target.contract.methods.mockFunctionThrows().encodeABI(); + + await expectRevert.unspecified(this.mock.$functionCall(this.target.address, abiEncodedCall)); + }); + + it('reverts when function does not exist', async function () { + const abiEncodedCall = web3.eth.abi.encodeFunctionCall( + { + name: 'mockFunctionDoesNotExist', + type: 'function', + inputs: [], + }, + [], + ); + + await expectRevert( + this.mock.$functionCall(this.target.address, abiEncodedCall), + 'Address: low-level call failed', + ); + }); + }); + + context('with non-contract receiver', function () { + it('reverts when address is not a contract', async function () { + const [recipient] = accounts; + const abiEncodedCall = this.target.contract.methods.mockFunction().encodeABI(); + + await expectRevert(this.mock.$functionCall(recipient, abiEncodedCall), 'Address: call to non-contract'); + }); + }); + }); + + describe('functionCallWithValue', function () { + beforeEach(async function () { + this.target = await CallReceiverMock.new(); + }); + + context('with zero value', function () { + it('calls the requested function', async function () { + const abiEncodedCall = this.target.contract.methods.mockFunction().encodeABI(); + + const receipt = await this.mock.$functionCallWithValue(this.target.address, abiEncodedCall, 0); + expectEvent(receipt, 'return$functionCallWithValue_address_bytes_uint256', { + ret0: web3.eth.abi.encodeParameters(['string'], ['0x1234']), + }); + await expectEvent.inTransaction(receipt.tx, CallReceiverMock, 'MockFunctionCalled'); + }); + }); + + context('with non-zero value', function () { + const amount = ether('1.2'); + + it('reverts if insufficient sender balance', async function () { + const abiEncodedCall = this.target.contract.methods.mockFunction().encodeABI(); + + await expectRevert( + this.mock.$functionCallWithValue(this.target.address, abiEncodedCall, amount), + 'Address: insufficient balance for call', + ); + }); + + it('calls the requested function with existing value', async function () { + const abiEncodedCall = this.target.contract.methods.mockFunction().encodeABI(); + + const tracker = await balance.tracker(this.target.address); + + await send.ether(other, this.mock.address, amount); + + const receipt = await this.mock.$functionCallWithValue(this.target.address, abiEncodedCall, amount); + expectEvent(receipt, 'return$functionCallWithValue_address_bytes_uint256', { + ret0: web3.eth.abi.encodeParameters(['string'], ['0x1234']), + }); + await expectEvent.inTransaction(receipt.tx, CallReceiverMock, 'MockFunctionCalled'); + + expect(await tracker.delta()).to.be.bignumber.equal(amount); + }); + + it('calls the requested function with transaction funds', async function () { + const abiEncodedCall = this.target.contract.methods.mockFunction().encodeABI(); + + const tracker = await balance.tracker(this.target.address); + + expect(await balance.current(this.mock.address)).to.be.bignumber.equal('0'); + + const receipt = await this.mock.$functionCallWithValue(this.target.address, abiEncodedCall, amount, { + from: other, + value: amount, + }); + expectEvent(receipt, 'return$functionCallWithValue_address_bytes_uint256', { + ret0: web3.eth.abi.encodeParameters(['string'], ['0x1234']), + }); + await expectEvent.inTransaction(receipt.tx, CallReceiverMock, 'MockFunctionCalled'); + + expect(await tracker.delta()).to.be.bignumber.equal(amount); + }); + + it('reverts when calling non-payable functions', async function () { + const abiEncodedCall = this.target.contract.methods.mockFunctionNonPayable().encodeABI(); + + await send.ether(other, this.mock.address, amount); + await expectRevert( + this.mock.$functionCallWithValue(this.target.address, abiEncodedCall, amount), + 'Address: low-level call with value failed', + ); + }); + }); + }); + + describe('functionStaticCall', function () { + beforeEach(async function () { + this.target = await CallReceiverMock.new(); + }); + + it('calls the requested function', async function () { + const abiEncodedCall = this.target.contract.methods.mockStaticFunction().encodeABI(); + + expect(await this.mock.$functionStaticCall(this.target.address, abiEncodedCall)).to.be.equal( + web3.eth.abi.encodeParameters(['string'], ['0x1234']), + ); + }); + + it('reverts on a non-static function', async function () { + const abiEncodedCall = this.target.contract.methods.mockFunction().encodeABI(); + + await expectRevert( + this.mock.$functionStaticCall(this.target.address, abiEncodedCall), + 'Address: low-level static call failed', + ); + }); + + it('bubbles up revert reason', async function () { + const abiEncodedCall = this.target.contract.methods.mockFunctionRevertsReason().encodeABI(); + + await expectRevert( + this.mock.$functionStaticCall(this.target.address, abiEncodedCall), + 'CallReceiverMock: reverting', + ); + }); + + it('reverts when address is not a contract', async function () { + const [recipient] = accounts; + const abiEncodedCall = this.target.contract.methods.mockFunction().encodeABI(); + + await expectRevert(this.mock.$functionStaticCall(recipient, abiEncodedCall), 'Address: call to non-contract'); + }); + }); + + describe('functionDelegateCall', function () { + beforeEach(async function () { + this.target = await CallReceiverMock.new(); + }); + + it('delegate calls the requested function', async function () { + // pseudorandom values + const slot = '0x93e4c53af435ddf777c3de84bb9a953a777788500e229a468ea1036496ab66a0'; + const value = '0x6a465d1c49869f71fb65562bcbd7e08c8044074927f0297127203f2a9924ff5b'; + + const abiEncodedCall = this.target.contract.methods.mockFunctionWritesStorage(slot, value).encodeABI(); + + expect(await web3.eth.getStorageAt(this.mock.address, slot)).to.be.equal(constants.ZERO_BYTES32); + + expectEvent( + await this.mock.$functionDelegateCall(this.target.address, abiEncodedCall), + 'return$functionDelegateCall_address_bytes', + { ret0: web3.eth.abi.encodeParameters(['string'], ['0x1234']) }, + ); + + expect(await web3.eth.getStorageAt(this.mock.address, slot)).to.be.equal(value); + }); + + it('bubbles up revert reason', async function () { + const abiEncodedCall = this.target.contract.methods.mockFunctionRevertsReason().encodeABI(); + + await expectRevert( + this.mock.$functionDelegateCall(this.target.address, abiEncodedCall), + 'CallReceiverMock: reverting', + ); + }); + + it('reverts when address is not a contract', async function () { + const [recipient] = accounts; + const abiEncodedCall = this.target.contract.methods.mockFunction().encodeABI(); + + await expectRevert(this.mock.$functionDelegateCall(recipient, abiEncodedCall), 'Address: call to non-contract'); + }); + }); +}); diff --git a/lib/openzeppelin-contracts/test/utils/Arrays.test.js b/lib/openzeppelin-contracts/test/utils/Arrays.test.js new file mode 100644 index 0000000..d939d59 --- /dev/null +++ b/lib/openzeppelin-contracts/test/utils/Arrays.test.js @@ -0,0 +1,123 @@ +require('@openzeppelin/test-helpers'); + +const { expect } = require('chai'); + +const AddressArraysMock = artifacts.require('AddressArraysMock'); +const Bytes32ArraysMock = artifacts.require('Bytes32ArraysMock'); +const Uint256ArraysMock = artifacts.require('Uint256ArraysMock'); + +contract('Arrays', function () { + describe('findUpperBound', function () { + context('Even number of elements', function () { + const EVEN_ELEMENTS_ARRAY = [11, 12, 13, 14, 15, 16, 17, 18, 19, 20]; + + beforeEach(async function () { + this.arrays = await Uint256ArraysMock.new(EVEN_ELEMENTS_ARRAY); + }); + + it('returns correct index for the basic case', async function () { + expect(await this.arrays.findUpperBound(16)).to.be.bignumber.equal('5'); + }); + + it('returns 0 for the first element', async function () { + expect(await this.arrays.findUpperBound(11)).to.be.bignumber.equal('0'); + }); + + it('returns index of the last element', async function () { + expect(await this.arrays.findUpperBound(20)).to.be.bignumber.equal('9'); + }); + + it('returns first index after last element if searched value is over the upper boundary', async function () { + expect(await this.arrays.findUpperBound(32)).to.be.bignumber.equal('10'); + }); + + it('returns 0 for the element under the lower boundary', async function () { + expect(await this.arrays.findUpperBound(2)).to.be.bignumber.equal('0'); + }); + }); + + context('Odd number of elements', function () { + const ODD_ELEMENTS_ARRAY = [11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21]; + + beforeEach(async function () { + this.arrays = await Uint256ArraysMock.new(ODD_ELEMENTS_ARRAY); + }); + + it('returns correct index for the basic case', async function () { + expect(await this.arrays.findUpperBound(16)).to.be.bignumber.equal('5'); + }); + + it('returns 0 for the first element', async function () { + expect(await this.arrays.findUpperBound(11)).to.be.bignumber.equal('0'); + }); + + it('returns index of the last element', async function () { + expect(await this.arrays.findUpperBound(21)).to.be.bignumber.equal('10'); + }); + + it('returns first index after last element if searched value is over the upper boundary', async function () { + expect(await this.arrays.findUpperBound(32)).to.be.bignumber.equal('11'); + }); + + it('returns 0 for the element under the lower boundary', async function () { + expect(await this.arrays.findUpperBound(2)).to.be.bignumber.equal('0'); + }); + }); + + context('Array with gap', function () { + const WITH_GAP_ARRAY = [11, 12, 13, 14, 15, 20, 21, 22, 23, 24]; + + beforeEach(async function () { + this.arrays = await Uint256ArraysMock.new(WITH_GAP_ARRAY); + }); + + it('returns index of first element in next filled range', async function () { + expect(await this.arrays.findUpperBound(17)).to.be.bignumber.equal('5'); + }); + }); + + context('Empty array', function () { + beforeEach(async function () { + this.arrays = await Uint256ArraysMock.new([]); + }); + + it('always returns 0 for empty array', async function () { + expect(await this.arrays.findUpperBound(10)).to.be.bignumber.equal('0'); + }); + }); + }); + + describe('unsafeAccess', function () { + for (const { type, artifact, elements } of [ + { + type: 'address', + artifact: AddressArraysMock, + elements: Array(10) + .fill() + .map(() => web3.utils.randomHex(20)), + }, + { + type: 'bytes32', + artifact: Bytes32ArraysMock, + elements: Array(10) + .fill() + .map(() => web3.utils.randomHex(32)), + }, + { + type: 'uint256', + artifact: Uint256ArraysMock, + elements: Array(10) + .fill() + .map(() => web3.utils.randomHex(32)), + }, + ]) { + it(type, async function () { + const contract = await artifact.new(elements); + + for (const i in elements) { + expect(await contract.unsafeAccess(i)).to.be.bignumber.equal(elements[i]); + } + }); + } + }); +}); diff --git a/lib/openzeppelin-contracts/test/utils/Base64.test.js b/lib/openzeppelin-contracts/test/utils/Base64.test.js new file mode 100644 index 0000000..dfff0b0 --- /dev/null +++ b/lib/openzeppelin-contracts/test/utils/Base64.test.js @@ -0,0 +1,33 @@ +const { expect } = require('chai'); + +const Base64 = artifacts.require('$Base64'); + +contract('Strings', function () { + beforeEach(async function () { + this.base64 = await Base64.new(); + }); + + describe('from bytes - base64', function () { + it('converts to base64 encoded string with double padding', async function () { + const TEST_MESSAGE = 'test'; + const input = web3.utils.asciiToHex(TEST_MESSAGE); + expect(await this.base64.$encode(input)).to.equal('dGVzdA=='); + }); + + it('converts to base64 encoded string with single padding', async function () { + const TEST_MESSAGE = 'test1'; + const input = web3.utils.asciiToHex(TEST_MESSAGE); + expect(await this.base64.$encode(input)).to.equal('dGVzdDE='); + }); + + it('converts to base64 encoded string without padding', async function () { + const TEST_MESSAGE = 'test12'; + const input = web3.utils.asciiToHex(TEST_MESSAGE); + expect(await this.base64.$encode(input)).to.equal('dGVzdDEy'); + }); + + it('empty bytes', async function () { + expect(await this.base64.$encode([])).to.equal(''); + }); + }); +}); diff --git a/lib/openzeppelin-contracts/test/utils/Checkpoints.test.js b/lib/openzeppelin-contracts/test/utils/Checkpoints.test.js new file mode 100644 index 0000000..d43d469 --- /dev/null +++ b/lib/openzeppelin-contracts/test/utils/Checkpoints.test.js @@ -0,0 +1,203 @@ +const { expectRevert, time } = require('@openzeppelin/test-helpers'); + +const { expect } = require('chai'); + +const { batchInBlock } = require('../helpers/txpool'); + +const $Checkpoints = artifacts.require('$Checkpoints'); + +const first = array => (array.length ? array[0] : undefined); +const last = array => (array.length ? array[array.length - 1] : undefined); + +contract('Checkpoints', function () { + beforeEach(async function () { + this.mock = await $Checkpoints.new(); + }); + + describe('History checkpoints', function () { + const latest = (self, ...args) => self.methods['$latest_Checkpoints_History(uint256)'](0, ...args); + const latestCheckpoint = (self, ...args) => + self.methods['$latestCheckpoint_Checkpoints_History(uint256)'](0, ...args); + const push = (self, ...args) => self.methods['$push(uint256,uint256)'](0, ...args); + const getAtBlock = (self, ...args) => self.methods['$getAtBlock(uint256,uint256)'](0, ...args); + const getAtRecentBlock = (self, ...args) => self.methods['$getAtProbablyRecentBlock(uint256,uint256)'](0, ...args); + const getLength = (self, ...args) => self.methods['$length_Checkpoints_History(uint256)'](0, ...args); + + describe('without checkpoints', function () { + it('returns zero as latest value', async function () { + expect(await latest(this.mock)).to.be.bignumber.equal('0'); + + const ckpt = await latestCheckpoint(this.mock); + expect(ckpt[0]).to.be.equal(false); + expect(ckpt[1]).to.be.bignumber.equal('0'); + expect(ckpt[2]).to.be.bignumber.equal('0'); + }); + + it('returns zero as past value', async function () { + await time.advanceBlock(); + expect(await getAtBlock(this.mock, (await web3.eth.getBlockNumber()) - 1)).to.be.bignumber.equal('0'); + expect(await getAtRecentBlock(this.mock, (await web3.eth.getBlockNumber()) - 1)).to.be.bignumber.equal('0'); + }); + }); + + describe('with checkpoints', function () { + beforeEach('pushing checkpoints', async function () { + this.tx1 = await push(this.mock, 1); + this.tx2 = await push(this.mock, 2); + await time.advanceBlock(); + this.tx3 = await push(this.mock, 3); + await time.advanceBlock(); + await time.advanceBlock(); + }); + + it('returns latest value', async function () { + expect(await latest(this.mock)).to.be.bignumber.equal('3'); + + const ckpt = await latestCheckpoint(this.mock); + expect(ckpt[0]).to.be.equal(true); + expect(ckpt[1]).to.be.bignumber.equal(web3.utils.toBN(this.tx3.receipt.blockNumber)); + expect(ckpt[2]).to.be.bignumber.equal(web3.utils.toBN('3')); + }); + + for (const getAtBlockVariant of [getAtBlock, getAtRecentBlock]) { + describe(`lookup: ${getAtBlockVariant}`, function () { + it('returns past values', async function () { + expect(await getAtBlockVariant(this.mock, this.tx1.receipt.blockNumber - 1)).to.be.bignumber.equal('0'); + expect(await getAtBlockVariant(this.mock, this.tx1.receipt.blockNumber)).to.be.bignumber.equal('1'); + expect(await getAtBlockVariant(this.mock, this.tx2.receipt.blockNumber)).to.be.bignumber.equal('2'); + // Block with no new checkpoints + expect(await getAtBlockVariant(this.mock, this.tx2.receipt.blockNumber + 1)).to.be.bignumber.equal('2'); + expect(await getAtBlockVariant(this.mock, this.tx3.receipt.blockNumber)).to.be.bignumber.equal('3'); + expect(await getAtBlockVariant(this.mock, this.tx3.receipt.blockNumber + 1)).to.be.bignumber.equal('3'); + }); + it('reverts if block number >= current block', async function () { + await expectRevert( + getAtBlockVariant(this.mock, await web3.eth.getBlockNumber()), + 'Checkpoints: block not yet mined', + ); + + await expectRevert( + getAtBlockVariant(this.mock, (await web3.eth.getBlockNumber()) + 1), + 'Checkpoints: block not yet mined', + ); + }); + }); + } + + it('multiple checkpoints in the same block', async function () { + const lengthBefore = await getLength(this.mock); + + await batchInBlock([ + () => push(this.mock, 8, { gas: 100000 }), + () => push(this.mock, 9, { gas: 100000 }), + () => push(this.mock, 10, { gas: 100000 }), + ]); + + expect(await getLength(this.mock)).to.be.bignumber.equal(lengthBefore.addn(1)); + expect(await latest(this.mock)).to.be.bignumber.equal('10'); + }); + + it('more than 5 checkpoints', async function () { + for (let i = 4; i <= 6; i++) { + await push(this.mock, i); + } + expect(await getLength(this.mock)).to.be.bignumber.equal('6'); + const block = await web3.eth.getBlockNumber(); + // recent + expect(await getAtRecentBlock(this.mock, block - 1)).to.be.bignumber.equal('5'); + // non-recent + expect(await getAtRecentBlock(this.mock, block - 9)).to.be.bignumber.equal('0'); + }); + }); + }); + + for (const length of [160, 224]) { + describe(`Trace${length}`, function () { + const latest = (self, ...args) => self.methods[`$latest_Checkpoints_Trace${length}(uint256)`](0, ...args); + const latestCheckpoint = (self, ...args) => + self.methods[`$latestCheckpoint_Checkpoints_Trace${length}(uint256)`](0, ...args); + const push = (self, ...args) => self.methods[`$push(uint256,uint${256 - length},uint${length})`](0, ...args); + const upperLookup = (self, ...args) => self.methods[`$upperLookup(uint256,uint${256 - length})`](0, ...args); + const lowerLookup = (self, ...args) => self.methods[`$lowerLookup(uint256,uint${256 - length})`](0, ...args); + const getLength = (self, ...args) => self.methods[`$length_Checkpoints_Trace${length}(uint256)`](0, ...args); + + describe('without checkpoints', function () { + it('returns zero as latest value', async function () { + expect(await latest(this.mock)).to.be.bignumber.equal('0'); + + const ckpt = await latestCheckpoint(this.mock); + expect(ckpt[0]).to.be.equal(false); + expect(ckpt[1]).to.be.bignumber.equal('0'); + expect(ckpt[2]).to.be.bignumber.equal('0'); + }); + + it('lookup returns 0', async function () { + expect(await lowerLookup(this.mock, 0)).to.be.bignumber.equal('0'); + expect(await upperLookup(this.mock, 0)).to.be.bignumber.equal('0'); + }); + }); + + describe('with checkpoints', function () { + beforeEach('pushing checkpoints', async function () { + this.checkpoints = [ + { key: '2', value: '17' }, + { key: '3', value: '42' }, + { key: '5', value: '101' }, + { key: '7', value: '23' }, + { key: '11', value: '99' }, + ]; + for (const { key, value } of this.checkpoints) { + await push(this.mock, key, value); + } + }); + + it('length', async function () { + expect(await getLength(this.mock)).to.be.bignumber.equal(this.checkpoints.length.toString()); + }); + + it('returns latest value', async function () { + expect(await latest(this.mock)).to.be.bignumber.equal(last(this.checkpoints).value); + + const ckpt = await latestCheckpoint(this.mock); + expect(ckpt[0]).to.be.equal(true); + expect(ckpt[1]).to.be.bignumber.equal(last(this.checkpoints).key); + expect(ckpt[2]).to.be.bignumber.equal(last(this.checkpoints).value); + }); + + it('cannot push values in the past', async function () { + await expectRevert(push(this.mock, last(this.checkpoints).key - 1, '0'), 'Checkpoint: decreasing keys'); + }); + + it('can update last value', async function () { + const newValue = '42'; + + // check length before the update + expect(await getLength(this.mock)).to.be.bignumber.equal(this.checkpoints.length.toString()); + + // update last key + await push(this.mock, last(this.checkpoints).key, newValue); + expect(await latest(this.mock)).to.be.bignumber.equal(newValue); + + // check that length did not change + expect(await getLength(this.mock)).to.be.bignumber.equal(this.checkpoints.length.toString()); + }); + + it('lower lookup', async function () { + for (let i = 0; i < 14; ++i) { + const value = first(this.checkpoints.filter(x => i <= x.key))?.value || '0'; + + expect(await lowerLookup(this.mock, i)).to.be.bignumber.equal(value); + } + }); + + it('upper lookup', async function () { + for (let i = 0; i < 14; ++i) { + const value = last(this.checkpoints.filter(x => i >= x.key))?.value || '0'; + + expect(await upperLookup(this.mock, i)).to.be.bignumber.equal(value); + } + }); + }); + }); + } +}); diff --git a/lib/openzeppelin-contracts/test/utils/Context.behavior.js b/lib/openzeppelin-contracts/test/utils/Context.behavior.js new file mode 100644 index 0000000..08f7558 --- /dev/null +++ b/lib/openzeppelin-contracts/test/utils/Context.behavior.js @@ -0,0 +1,42 @@ +const { BN, expectEvent } = require('@openzeppelin/test-helpers'); + +const ContextMock = artifacts.require('ContextMock'); + +function shouldBehaveLikeRegularContext(sender) { + describe('msgSender', function () { + it('returns the transaction sender when called from an EOA', async function () { + const receipt = await this.context.msgSender({ from: sender }); + expectEvent(receipt, 'Sender', { sender }); + }); + + it('returns the transaction sender when from another contract', async function () { + const { tx } = await this.caller.callSender(this.context.address, { from: sender }); + await expectEvent.inTransaction(tx, ContextMock, 'Sender', { sender: this.caller.address }); + }); + }); + + describe('msgData', function () { + const integerValue = new BN('42'); + const stringValue = 'OpenZeppelin'; + + let callData; + + beforeEach(async function () { + callData = this.context.contract.methods.msgData(integerValue.toString(), stringValue).encodeABI(); + }); + + it('returns the transaction data when called from an EOA', async function () { + const receipt = await this.context.msgData(integerValue, stringValue); + expectEvent(receipt, 'Data', { data: callData, integerValue, stringValue }); + }); + + it('returns the transaction sender when from another contract', async function () { + const { tx } = await this.caller.callData(this.context.address, integerValue, stringValue); + await expectEvent.inTransaction(tx, ContextMock, 'Data', { data: callData, integerValue, stringValue }); + }); + }); +} + +module.exports = { + shouldBehaveLikeRegularContext, +}; diff --git a/lib/openzeppelin-contracts/test/utils/Context.test.js b/lib/openzeppelin-contracts/test/utils/Context.test.js new file mode 100644 index 0000000..f372f74 --- /dev/null +++ b/lib/openzeppelin-contracts/test/utils/Context.test.js @@ -0,0 +1,17 @@ +require('@openzeppelin/test-helpers'); + +const ContextMock = artifacts.require('ContextMock'); +const ContextMockCaller = artifacts.require('ContextMockCaller'); + +const { shouldBehaveLikeRegularContext } = require('./Context.behavior'); + +contract('Context', function (accounts) { + const [sender] = accounts; + + beforeEach(async function () { + this.context = await ContextMock.new(); + this.caller = await ContextMockCaller.new(); + }); + + shouldBehaveLikeRegularContext(sender); +}); diff --git a/lib/openzeppelin-contracts/test/utils/Counters.test.js b/lib/openzeppelin-contracts/test/utils/Counters.test.js new file mode 100644 index 0000000..6fb8992 --- /dev/null +++ b/lib/openzeppelin-contracts/test/utils/Counters.test.js @@ -0,0 +1,84 @@ +const { expectRevert } = require('@openzeppelin/test-helpers'); + +const { expect } = require('chai'); + +const Counters = artifacts.require('$Counters'); + +contract('Counters', function () { + beforeEach(async function () { + this.counter = await Counters.new(); + }); + + it('starts at zero', async function () { + expect(await this.counter.$current(0)).to.be.bignumber.equal('0'); + }); + + describe('increment', function () { + context('starting from 0', function () { + it('increments the current value by one', async function () { + await this.counter.$increment(0); + expect(await this.counter.$current(0)).to.be.bignumber.equal('1'); + }); + + it('can be called multiple times', async function () { + await this.counter.$increment(0); + await this.counter.$increment(0); + await this.counter.$increment(0); + + expect(await this.counter.$current(0)).to.be.bignumber.equal('3'); + }); + }); + }); + + describe('decrement', function () { + beforeEach(async function () { + await this.counter.$increment(0); + expect(await this.counter.$current(0)).to.be.bignumber.equal('1'); + }); + context('starting from 1', function () { + it('decrements the current value by one', async function () { + await this.counter.$decrement(0); + expect(await this.counter.$current(0)).to.be.bignumber.equal('0'); + }); + + it('reverts if the current value is 0', async function () { + await this.counter.$decrement(0); + await expectRevert(this.counter.$decrement(0), 'Counter: decrement overflow'); + }); + }); + context('after incremented to 3', function () { + it('can be called multiple times', async function () { + await this.counter.$increment(0); + await this.counter.$increment(0); + + expect(await this.counter.$current(0)).to.be.bignumber.equal('3'); + + await this.counter.$decrement(0); + await this.counter.$decrement(0); + await this.counter.$decrement(0); + + expect(await this.counter.$current(0)).to.be.bignumber.equal('0'); + }); + }); + }); + + describe('reset', function () { + context('null counter', function () { + it('does not throw', async function () { + await this.counter.$reset(0); + expect(await this.counter.$current(0)).to.be.bignumber.equal('0'); + }); + }); + + context('non null counter', function () { + beforeEach(async function () { + await this.counter.$increment(0); + expect(await this.counter.$current(0)).to.be.bignumber.equal('1'); + }); + it('reset to 0', async function () { + await this.counter.$reset(0); + expect(await this.counter.$current(0)).to.be.bignumber.equal('0'); + }); + }); + }); +}); diff --git a/lib/openzeppelin-contracts/test/utils/Create2.test.js b/lib/openzeppelin-contracts/test/utils/Create2.test.js new file mode 100644 index 0000000..2fc27dc --- /dev/null +++ b/lib/openzeppelin-contracts/test/utils/Create2.test.js @@ -0,0 +1,89 @@ +const { balance, ether, expectEvent, expectRevert, send } = require('@openzeppelin/test-helpers'); +const { computeCreate2Address } = require('../helpers/create2'); +const { expect } = require('chai'); + +const Create2 = artifacts.require('$Create2'); +const VestingWallet = artifacts.require('VestingWallet'); +const ERC1820Implementer = artifacts.require('$ERC1820Implementer'); + +contract('Create2', function (accounts) { + const [deployerAccount, other] = accounts; + + const salt = 'salt message'; + const saltHex = web3.utils.soliditySha3(salt); + + const encodedParams = web3.eth.abi.encodeParameters(['address', 'uint64', 'uint64'], [other, 0, 0]).slice(2); + + const constructorByteCode = `${VestingWallet.bytecode}${encodedParams}`; + + beforeEach(async function () { + this.factory = await Create2.new(); + }); + describe('computeAddress', function () { + it('computes the correct contract address', async function () { + const onChainComputed = await this.factory.$computeAddress(saltHex, web3.utils.keccak256(constructorByteCode)); + const offChainComputed = computeCreate2Address(saltHex, constructorByteCode, this.factory.address); + expect(onChainComputed).to.equal(offChainComputed); + }); + + it('computes the correct contract address with deployer', async function () { + const onChainComputed = await this.factory.$computeAddress( + saltHex, + web3.utils.keccak256(constructorByteCode), + deployerAccount, + ); + const offChainComputed = computeCreate2Address(saltHex, constructorByteCode, deployerAccount); + expect(onChainComputed).to.equal(offChainComputed); + }); + }); + + describe('deploy', function () { + it('deploys a ERC1820Implementer from inline assembly code', async function () { + const offChainComputed = computeCreate2Address(saltHex, ERC1820Implementer.bytecode, this.factory.address); + + expectEvent(await this.factory.$deploy(0, saltHex, ERC1820Implementer.bytecode), 'return$deploy', { + addr: offChainComputed, + }); + + expect(ERC1820Implementer.bytecode).to.include((await web3.eth.getCode(offChainComputed)).slice(2)); + }); + + it('deploys a contract with constructor arguments', async function () { + const offChainComputed = computeCreate2Address(saltHex, constructorByteCode, this.factory.address); + + expectEvent(await this.factory.$deploy(0, saltHex, constructorByteCode), 'return$deploy', { + addr: offChainComputed, + }); + + expect(await VestingWallet.at(offChainComputed).then(instance => instance.beneficiary())).to.be.equal(other); + }); + + it('deploys a contract with funds deposited in the factory', async function () { + const deposit = ether('2'); + await send.ether(deployerAccount, this.factory.address, deposit); + expect(await balance.current(this.factory.address)).to.be.bignumber.equal(deposit); + + const offChainComputed = computeCreate2Address(saltHex, constructorByteCode, this.factory.address); + + expectEvent(await this.factory.$deploy(deposit, saltHex, constructorByteCode), 'return$deploy', { + addr: offChainComputed, + }); + + expect(await balance.current(offChainComputed)).to.be.bignumber.equal(deposit); + }); + + it('fails deploying a contract in an existent address', async function () { + expectEvent(await this.factory.$deploy(0, saltHex, constructorByteCode), 'return$deploy'); + + await expectRevert(this.factory.$deploy(0, saltHex, constructorByteCode), 'Create2: Failed on deploy'); + }); + + it('fails deploying a contract if the bytecode length is zero', async function () { + await expectRevert(this.factory.$deploy(0, saltHex, '0x'), 'Create2: bytecode length is zero'); + }); + + it('fails deploying a contract if factory contract does not have sufficient balance', async function () { + await expectRevert(this.factory.$deploy(1, saltHex, constructorByteCode), 'Create2: insufficient balance'); + }); + }); +}); diff --git a/lib/openzeppelin-contracts/test/utils/Multicall.test.js b/lib/openzeppelin-contracts/test/utils/Multicall.test.js new file mode 100644 index 0000000..cfb8007 --- /dev/null +++ b/lib/openzeppelin-contracts/test/utils/Multicall.test.js @@ -0,0 +1,68 @@ +const { BN, expectRevert } = require('@openzeppelin/test-helpers'); + +const ERC20MulticallMock = artifacts.require('$ERC20MulticallMock'); + +contract('Multicall', function (accounts) { + const [deployer, alice, bob] = accounts; + const amount = 12000; + + beforeEach(async function () { + this.multicallToken = await ERC20MulticallMock.new('name', 'symbol'); + await this.multicallToken.$_mint(deployer, amount); + }); + + it('batches function calls', async function () { + expect(await this.multicallToken.balanceOf(alice)).to.be.bignumber.equal(new BN('0')); + expect(await this.multicallToken.balanceOf(bob)).to.be.bignumber.equal(new BN('0')); + + await this.multicallToken.multicall( + [ + this.multicallToken.contract.methods.transfer(alice, amount / 2).encodeABI(), + this.multicallToken.contract.methods.transfer(bob, amount / 3).encodeABI(), + ], + { from: deployer }, + ); + + expect(await this.multicallToken.balanceOf(alice)).to.be.bignumber.equal(new BN(amount / 2)); + expect(await this.multicallToken.balanceOf(bob)).to.be.bignumber.equal(new BN(amount / 3)); + }); + + it('returns an array with the result of each call', async function () { + const MulticallTest = artifacts.require('MulticallTest'); + const multicallTest = await MulticallTest.new({ from: deployer }); + await this.multicallToken.transfer(multicallTest.address, amount, { from: deployer }); + expect(await this.multicallToken.balanceOf(multicallTest.address)).to.be.bignumber.equal(new BN(amount)); + + const recipients = [alice, bob]; + const amounts = [amount / 2, amount / 3].map(n => new BN(n)); + + await multicallTest.checkReturnValues(this.multicallToken.address, recipients, amounts); + }); + + it('reverts previous calls', async function () { + expect(await this.multicallToken.balanceOf(alice)).to.be.bignumber.equal(new BN('0')); + + const call = this.multicallToken.multicall( + [ + this.multicallToken.contract.methods.transfer(alice, amount).encodeABI(), + this.multicallToken.contract.methods.transfer(bob, amount).encodeABI(), + ], + { from: deployer }, + ); + + await expectRevert(call, 'ERC20: transfer amount exceeds balance'); + expect(await this.multicallToken.balanceOf(alice)).to.be.bignumber.equal(new BN('0')); + }); + + it('bubbles up revert reasons', async function () { + const call = this.multicallToken.multicall( + [ + this.multicallToken.contract.methods.transfer(alice, amount).encodeABI(), + this.multicallToken.contract.methods.transfer(bob, amount).encodeABI(), + ], + { from: deployer }, + ); + + await expectRevert(call, 'ERC20: transfer amount exceeds balance'); + }); +}); diff --git a/lib/openzeppelin-contracts/test/utils/StorageSlot.test.js b/lib/openzeppelin-contracts/test/utils/StorageSlot.test.js new file mode 100644 index 0000000..9d42887 --- /dev/null +++ b/lib/openzeppelin-contracts/test/utils/StorageSlot.test.js @@ -0,0 +1,110 @@ +const { constants, BN } = require('@openzeppelin/test-helpers'); + +const { expect } = require('chai'); + +const StorageSlotMock = artifacts.require('StorageSlotMock'); + +const slot = web3.utils.keccak256('some.storage.slot'); +const otherSlot = web3.utils.keccak256('some.other.storage.slot'); + +contract('StorageSlot', function (accounts) { + beforeEach(async function () { + this.store = await StorageSlotMock.new(); + }); + + describe('boolean storage slot', function () { + beforeEach(async function () { + this.value = true; + }); + + it('set', async function () { + await this.store.setBoolean(slot, this.value); + }); + + describe('get', function () { + beforeEach(async function () { + await this.store.setBoolean(slot, this.value); + }); + + it('from right slot', async function () { + expect(await this.store.getBoolean(slot)).to.be.equal(this.value); + }); + + it('from other slot', async function () { + expect(await this.store.getBoolean(otherSlot)).to.be.equal(false); + }); + }); + }); + + describe('address storage slot', function () { + beforeEach(async function () { + this.value = accounts[1]; + }); + + it('set', async function () { + await this.store.setAddress(slot, this.value); + }); + + describe('get', function () { + beforeEach(async function () { + await this.store.setAddress(slot, this.value); + }); + + it('from right slot', async function () { + expect(await this.store.getAddress(slot)).to.be.equal(this.value); + }); + + it('from other slot', async function () { + expect(await this.store.getAddress(otherSlot)).to.be.equal(constants.ZERO_ADDRESS); + }); + }); + }); + + describe('bytes32 storage slot', function () { + beforeEach(async function () { + this.value = web3.utils.keccak256('some byte32 value'); + }); + + it('set', async function () { + await this.store.setBytes32(slot, this.value); + }); + + describe('get', function () { + beforeEach(async function () { + await this.store.setBytes32(slot, this.value); + }); + + it('from right slot', async function () { + expect(await this.store.getBytes32(slot)).to.be.equal(this.value); + }); + + it('from other slot', async function () { + expect(await this.store.getBytes32(otherSlot)).to.be.equal(constants.ZERO_BYTES32); + }); + }); + }); + + describe('uint256 storage slot', function () { + beforeEach(async function () { + this.value = new BN(1742); + }); + + it('set', async function () { + await this.store.setUint256(slot, this.value); + }); + + describe('get', function () { + beforeEach(async function () { + await this.store.setUint256(slot, this.value); + }); + + it('from right slot', async function () { + expect(await this.store.getUint256(slot)).to.be.bignumber.equal(this.value); + }); + + it('from other slot', async function () { + expect(await this.store.getUint256(otherSlot)).to.be.bignumber.equal('0'); + }); + }); + }); +}); diff --git a/lib/openzeppelin-contracts/test/utils/Strings.test.js b/lib/openzeppelin-contracts/test/utils/Strings.test.js new file mode 100644 index 0000000..6658871 --- /dev/null +++ b/lib/openzeppelin-contracts/test/utils/Strings.test.js @@ -0,0 +1,150 @@ +const { BN, constants, expectRevert } = require('@openzeppelin/test-helpers'); + +const { expect } = require('chai'); + +const Strings = artifacts.require('$Strings'); + +contract('Strings', function () { + before(async function () { + this.strings = await Strings.new(); + }); + + describe('toString', function () { + const values = [ + '0', + '7', + '10', + '99', + '100', + '101', + '123', + '4132', + '12345', + '1234567', + '1234567890', + '123456789012345', + '12345678901234567890', + '123456789012345678901234567890', + '1234567890123456789012345678901234567890', + '12345678901234567890123456789012345678901234567890', + '123456789012345678901234567890123456789012345678901234567890', + '1234567890123456789012345678901234567890123456789012345678901234567890', + ]; + + describe('uint256', function () { + it('converts MAX_UINT256', async function () { + const value = constants.MAX_UINT256; + expect(await this.strings.methods['$toString(uint256)'](value)).to.equal(value.toString(10)); + }); + + for (const value of values) { + it(`converts ${value}`, async function () { + expect(await this.strings.methods['$toString(uint256)'](value)).to.equal(value); + }); + } + }); + + describe('int256', function () { + it('converts MAX_INT256', async function () { + const value = constants.MAX_INT256; + expect(await this.strings.methods['$toString(int256)'](value)).to.equal(value.toString(10)); + }); + + it('converts MIN_INT256', async function () { + const value = constants.MIN_INT256; + expect(await this.strings.methods['$toString(int256)'](value)).to.equal(value.toString(10)); + }); + + for (const value of values) { + it(`convert ${value}`, async function () { + expect(await this.strings.methods['$toString(int256)'](value)).to.equal(value); + }); + + it(`convert negative ${value}`, async function () { + const negated = new BN(value).neg(); + expect(await this.strings.methods['$toString(int256)'](negated)).to.equal(negated.toString(10)); + }); + } + }); + }); + + describe('toHexString', function () { + it('converts 0', async function () { + expect(await this.strings.methods['$toHexString(uint256)'](0)).to.equal('0x00'); + }); + + it('converts a positive number', async function () { + expect(await this.strings.methods['$toHexString(uint256)'](0x4132)).to.equal('0x4132'); + }); + + it('converts MAX_UINT256', async function () { + expect(await this.strings.methods['$toHexString(uint256)'](constants.MAX_UINT256)).to.equal( + web3.utils.toHex(constants.MAX_UINT256), + ); + }); + }); + + describe('toHexString fixed', function () { + it('converts a positive number (long)', async function () { + expect(await this.strings.methods['$toHexString(uint256,uint256)'](0x4132, 32)).to.equal( + '0x0000000000000000000000000000000000000000000000000000000000004132', + ); + }); + + it('converts a positive number (short)', async function () { + await expectRevert( + this.strings.methods['$toHexString(uint256,uint256)'](0x4132, 1), + 'Strings: hex length insufficient', + ); + }); + + it('converts MAX_UINT256', async function () { + expect(await this.strings.methods['$toHexString(uint256,uint256)'](constants.MAX_UINT256, 32)).to.equal( + web3.utils.toHex(constants.MAX_UINT256), + ); + }); + }); + + describe('toHexString address', function () { + it('converts a random address', async function () { + const addr = '0xa9036907dccae6a1e0033479b12e837e5cf5a02f'; + expect(await this.strings.methods['$toHexString(address)'](addr)).to.equal(addr); + }); + + it('converts an address with leading zeros', async function () { + const addr = '0x0000e0ca771e21bd00057f54a68c30d400000000'; + expect(await this.strings.methods['$toHexString(address)'](addr)).to.equal(addr); + }); + }); + + describe('equal', function () { + it('compares two empty strings', async function () { + expect(await this.strings.methods['$equal(string,string)']('', '')).to.equal(true); + }); + + it('compares two equal strings', async function () { + expect(await this.strings.methods['$equal(string,string)']('a', 'a')).to.equal(true); + }); + + it('compares two different strings', async function () { + expect(await this.strings.methods['$equal(string,string)']('a', 'b')).to.equal(false); + }); + + it('compares two different strings of different lengths', async function () { + expect(await this.strings.methods['$equal(string,string)']('a', 'aa')).to.equal(false); + expect(await this.strings.methods['$equal(string,string)']('aa', 'a')).to.equal(false); + }); + + it('compares two different large strings', async function () { + const str1 = 'a'.repeat(201); + const str2 = 'a'.repeat(200) + 'b'; + expect(await this.strings.methods['$equal(string,string)'](str1, str2)).to.equal(false); + }); + + it('compares two equal large strings', async function () { + const str1 = 'a'.repeat(201); + const str2 = 'a'.repeat(201); + expect(await this.strings.methods['$equal(string,string)'](str1, str2)).to.equal(true); + }); + }); +}); diff --git a/lib/openzeppelin-contracts/test/utils/TimersBlockNumberImpl.test.js b/lib/openzeppelin-contracts/test/utils/TimersBlockNumberImpl.test.js new file mode 100644 index 0000000..ee0d54b --- /dev/null +++ b/lib/openzeppelin-contracts/test/utils/TimersBlockNumberImpl.test.js @@ -0,0 +1,55 @@ +const { BN, time } = require('@openzeppelin/test-helpers'); +const { expect } = require('chai'); + +const TimersBlockNumberImpl = artifacts.require('TimersBlockNumberImpl'); + +contract('TimersBlockNumber', function () { + beforeEach(async function () { + this.instance = await TimersBlockNumberImpl.new(); + this.now = await web3.eth.getBlock('latest').then(({ number }) => number); + }); + + it('unset', async function () { + expect(await this.instance.getDeadline()).to.be.bignumber.equal('0'); + expect(await this.instance.isUnset()).to.be.equal(true); + expect(await this.instance.isStarted()).to.be.equal(false); + expect(await this.instance.isPending()).to.be.equal(false); + expect(await this.instance.isExpired()).to.be.equal(false); + }); + + it('pending', async function () { + await this.instance.setDeadline(this.now + 3); + expect(await this.instance.getDeadline()).to.be.bignumber.equal(new BN(this.now + 3)); + expect(await this.instance.isUnset()).to.be.equal(false); + expect(await this.instance.isStarted()).to.be.equal(true); + expect(await this.instance.isPending()).to.be.equal(true); + expect(await this.instance.isExpired()).to.be.equal(false); + }); + + it('expired', async function () { + await this.instance.setDeadline(this.now - 3); + expect(await this.instance.getDeadline()).to.be.bignumber.equal(new BN(this.now - 3)); + expect(await this.instance.isUnset()).to.be.equal(false); + expect(await this.instance.isStarted()).to.be.equal(true); + expect(await this.instance.isPending()).to.be.equal(false); + expect(await this.instance.isExpired()).to.be.equal(true); + }); + + it('reset', async function () { + await this.instance.reset(); + expect(await this.instance.getDeadline()).to.be.bignumber.equal(new BN(0)); + expect(await this.instance.isUnset()).to.be.equal(true); + expect(await this.instance.isStarted()).to.be.equal(false); + expect(await this.instance.isPending()).to.be.equal(false); + expect(await this.instance.isExpired()).to.be.equal(false); + }); + + it('fast forward', async function () { + await this.instance.setDeadline(this.now + 3); + expect(await this.instance.isPending()).to.be.equal(true); + expect(await this.instance.isExpired()).to.be.equal(false); + await time.advanceBlockTo(this.now + 3); + expect(await this.instance.isPending()).to.be.equal(false); + expect(await this.instance.isExpired()).to.be.equal(true); + }); +}); diff --git a/lib/openzeppelin-contracts/test/utils/TimersTimestamp.test.js b/lib/openzeppelin-contracts/test/utils/TimersTimestamp.test.js new file mode 100644 index 0000000..fc32de7 --- /dev/null +++ b/lib/openzeppelin-contracts/test/utils/TimersTimestamp.test.js @@ -0,0 +1,55 @@ +const { BN, time } = require('@openzeppelin/test-helpers'); +const { expect } = require('chai'); + +const TimersTimestampImpl = artifacts.require('TimersTimestampImpl'); + +contract('TimersTimestamp', function () { + beforeEach(async function () { + this.instance = await TimersTimestampImpl.new(); + this.now = await web3.eth.getBlock('latest').then(({ timestamp }) => timestamp); + }); + + it('unset', async function () { + expect(await this.instance.getDeadline()).to.be.bignumber.equal('0'); + expect(await this.instance.isUnset()).to.be.equal(true); + expect(await this.instance.isStarted()).to.be.equal(false); + expect(await this.instance.isPending()).to.be.equal(false); + expect(await this.instance.isExpired()).to.be.equal(false); + }); + + it('pending', async function () { + await this.instance.setDeadline(this.now + 100); + expect(await this.instance.getDeadline()).to.be.bignumber.equal(new BN(this.now + 100)); + expect(await this.instance.isUnset()).to.be.equal(false); + expect(await this.instance.isStarted()).to.be.equal(true); + expect(await this.instance.isPending()).to.be.equal(true); + expect(await this.instance.isExpired()).to.be.equal(false); + }); + + it('expired', async function () { + await this.instance.setDeadline(this.now - 100); + expect(await this.instance.getDeadline()).to.be.bignumber.equal(new BN(this.now - 100)); + expect(await this.instance.isUnset()).to.be.equal(false); + expect(await this.instance.isStarted()).to.be.equal(true); + expect(await this.instance.isPending()).to.be.equal(false); + expect(await this.instance.isExpired()).to.be.equal(true); + }); + + it('reset', async function () { + await this.instance.reset(); + expect(await this.instance.getDeadline()).to.be.bignumber.equal(new BN(0)); + expect(await this.instance.isUnset()).to.be.equal(true); + expect(await this.instance.isStarted()).to.be.equal(false); + expect(await this.instance.isPending()).to.be.equal(false); + expect(await this.instance.isExpired()).to.be.equal(false); + }); + + it('fast forward', async function () { + await this.instance.setDeadline(this.now + 100); + expect(await this.instance.isPending()).to.be.equal(true); + expect(await this.instance.isExpired()).to.be.equal(false); + await time.increaseTo(this.now + 100); + expect(await this.instance.isPending()).to.be.equal(false); + expect(await this.instance.isExpired()).to.be.equal(true); + }); +}); diff --git a/lib/openzeppelin-contracts/test/utils/cryptography/ECDSA.test.js b/lib/openzeppelin-contracts/test/utils/cryptography/ECDSA.test.js new file mode 100644 index 0000000..3b19cde --- /dev/null +++ b/lib/openzeppelin-contracts/test/utils/cryptography/ECDSA.test.js @@ -0,0 +1,251 @@ +const { expectRevert } = require('@openzeppelin/test-helpers'); +const { toEthSignedMessageHash } = require('../../helpers/sign'); + +const { expect } = require('chai'); + +const ECDSA = artifacts.require('$ECDSA'); + +const TEST_MESSAGE = web3.utils.sha3('OpenZeppelin'); +const WRONG_MESSAGE = web3.utils.sha3('Nope'); +const NON_HASH_MESSAGE = '0x' + Buffer.from('abcd').toString('hex'); + +function to2098Format(signature) { + const long = web3.utils.hexToBytes(signature); + if (long.length !== 65) { + throw new Error('invalid signature length (expected long format)'); + } + if (long[32] >> 7 === 1) { + throw new Error("invalid signature 's' value"); + } + const short = long.slice(0, 64); + short[32] |= long[64] % 27 << 7; // set the first bit of the 32nd byte to the v parity bit + return web3.utils.bytesToHex(short); +} + +function split(signature) { + const raw = web3.utils.hexToBytes(signature); + switch (raw.length) { + case 64: + return [ + web3.utils.bytesToHex(raw.slice(0, 32)), // r + web3.utils.bytesToHex(raw.slice(32, 64)), // vs + ]; + case 65: + return [ + raw[64], // v + web3.utils.bytesToHex(raw.slice(0, 32)), // r + web3.utils.bytesToHex(raw.slice(32, 64)), // s + ]; + default: + expect.fail('Invalid signature length, cannot split'); + } +} + +contract('ECDSA', function (accounts) { + const [other] = accounts; + + beforeEach(async function () { + this.ecdsa = await ECDSA.new(); + }); + + context('recover with invalid signature', function () { + it('with short signature', async function () { + await expectRevert(this.ecdsa.$recover(TEST_MESSAGE, '0x1234'), 'ECDSA: invalid signature length'); + }); + + it('with long signature', async function () { + await expectRevert( + // eslint-disable-next-line max-len + this.ecdsa.$recover( + TEST_MESSAGE, + '0x01234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789', + ), + 'ECDSA: invalid signature length', + ); + }); + }); + + context('recover with valid signature', function () { + context('using web3.eth.sign', function () { + it('returns signer address with correct signature', async function () { + // Create the signature + const signature = await web3.eth.sign(TEST_MESSAGE, other); + + // Recover the signer address from the generated message and signature. + expect(await this.ecdsa.$recover(toEthSignedMessageHash(TEST_MESSAGE), signature)).to.equal(other); + }); + + it('returns signer address with correct signature for arbitrary length message', async function () { + // Create the signature + const signature = await web3.eth.sign(NON_HASH_MESSAGE, other); + + // Recover the signer address from the generated message and signature. + expect(await this.ecdsa.$recover(toEthSignedMessageHash(NON_HASH_MESSAGE), signature)).to.equal(other); + }); + + it('returns a different address', async function () { + const signature = await web3.eth.sign(TEST_MESSAGE, other); + expect(await this.ecdsa.$recover(WRONG_MESSAGE, signature)).to.not.equal(other); + }); + + it('reverts with invalid signature', async function () { + // eslint-disable-next-line max-len + const signature = + '0x332ce75a821c982f9127538858900d87d3ec1f9f737338ad67cad133fa48feff48e6fa0c18abc62e42820f05943e47af3e9fbe306ce74d64094bdf1691ee53e01c'; + await expectRevert(this.ecdsa.$recover(TEST_MESSAGE, signature), 'ECDSA: invalid signature'); + }); + }); + + context('with v=27 signature', function () { + // Signature generated outside ganache with method web3.eth.sign(signer, message) + const signer = '0x2cc1166f6212628A0deEf2B33BEFB2187D35b86c'; + // eslint-disable-next-line max-len + const signatureWithoutV = + '0x5d99b6f7f6d1f73d1a26497f2b1c89b24c0993913f86e9a2d02cd69887d9c94f3c880358579d811b21dd1b7fd9bb01c1d81d10e69f0384e675c32b39643be892'; + + it('works with correct v value', async function () { + const v = '1b'; // 27 = 1b. + const signature = signatureWithoutV + v; + expect(await this.ecdsa.$recover(TEST_MESSAGE, signature)).to.equal(signer); + + expect( + await this.ecdsa.methods['$recover(bytes32,uint8,bytes32,bytes32)'](TEST_MESSAGE, ...split(signature)), + ).to.equal(signer); + + expect( + await this.ecdsa.methods['$recover(bytes32,bytes32,bytes32)']( + TEST_MESSAGE, + ...split(to2098Format(signature)), + ), + ).to.equal(signer); + }); + + it('rejects incorrect v value', async function () { + const v = '1c'; // 28 = 1c. + const signature = signatureWithoutV + v; + expect(await this.ecdsa.$recover(TEST_MESSAGE, signature)).to.not.equal(signer); + + expect( + await this.ecdsa.methods['$recover(bytes32,uint8,bytes32,bytes32)'](TEST_MESSAGE, ...split(signature)), + ).to.not.equal(signer); + + expect( + await this.ecdsa.methods['$recover(bytes32,bytes32,bytes32)']( + TEST_MESSAGE, + ...split(to2098Format(signature)), + ), + ).to.not.equal(signer); + }); + + it('reverts wrong v values', async function () { + for (const v of ['00', '01']) { + const signature = signatureWithoutV + v; + await expectRevert(this.ecdsa.$recover(TEST_MESSAGE, signature), 'ECDSA: invalid signature'); + + await expectRevert( + this.ecdsa.methods['$recover(bytes32,uint8,bytes32,bytes32)'](TEST_MESSAGE, ...split(signature)), + 'ECDSA: invalid signature', + ); + } + }); + + it('rejects short EIP2098 format', async function () { + const v = '1b'; // 27 = 1b. + const signature = signatureWithoutV + v; + await expectRevert( + this.ecdsa.$recover(TEST_MESSAGE, to2098Format(signature)), + 'ECDSA: invalid signature length', + ); + }); + }); + + context('with v=28 signature', function () { + const signer = '0x1E318623aB09Fe6de3C9b8672098464Aeda9100E'; + // eslint-disable-next-line max-len + const signatureWithoutV = + '0x331fe75a821c982f9127538858900d87d3ec1f9f737338ad67cad133fa48feff48e6fa0c18abc62e42820f05943e47af3e9fbe306ce74d64094bdf1691ee53e0'; + + it('works with correct v value', async function () { + const v = '1c'; // 28 = 1c. + const signature = signatureWithoutV + v; + expect(await this.ecdsa.$recover(TEST_MESSAGE, signature)).to.equal(signer); + + expect( + await this.ecdsa.methods['$recover(bytes32,uint8,bytes32,bytes32)'](TEST_MESSAGE, ...split(signature)), + ).to.equal(signer); + + expect( + await this.ecdsa.methods['$recover(bytes32,bytes32,bytes32)']( + TEST_MESSAGE, + ...split(to2098Format(signature)), + ), + ).to.equal(signer); + }); + + it('rejects incorrect v value', async function () { + const v = '1b'; // 27 = 1b. + const signature = signatureWithoutV + v; + expect(await this.ecdsa.$recover(TEST_MESSAGE, signature)).to.not.equal(signer); + + expect( + await this.ecdsa.methods['$recover(bytes32,uint8,bytes32,bytes32)'](TEST_MESSAGE, ...split(signature)), + ).to.not.equal(signer); + + expect( + await this.ecdsa.methods['$recover(bytes32,bytes32,bytes32)']( + TEST_MESSAGE, + ...split(to2098Format(signature)), + ), + ).to.not.equal(signer); + }); + + it('reverts invalid v values', async function () { + for (const v of ['00', '01']) { + const signature = signatureWithoutV + v; + await expectRevert(this.ecdsa.$recover(TEST_MESSAGE, signature), 'ECDSA: invalid signature'); + + await expectRevert( + this.ecdsa.methods['$recover(bytes32,uint8,bytes32,bytes32)'](TEST_MESSAGE, ...split(signature)), + 'ECDSA: invalid signature', + ); + } + }); + + it('rejects short EIP2098 format', async function () { + const v = '1c'; // 27 = 1b. + const signature = signatureWithoutV + v; + await expectRevert( + this.ecdsa.$recover(TEST_MESSAGE, to2098Format(signature)), + 'ECDSA: invalid signature length', + ); + }); + }); + + it('reverts with high-s value signature', async function () { + const message = '0xb94d27b9934d3e08a52e52d7da7dabfac484efe37a5380ee9088f7ace2efcde9'; + // eslint-disable-next-line max-len + const highSSignature = + '0xe742ff452d41413616a5bf43fe15dd88294e983d3d36206c2712f39083d638bde0a0fc89be718fbc1033e1d30d78be1c68081562ed2e97af876f286f3453231d1b'; + await expectRevert(this.ecdsa.$recover(message, highSSignature), "ECDSA: invalid signature 's' value"); + await expectRevert( + this.ecdsa.methods['$recover(bytes32,uint8,bytes32,bytes32)'](TEST_MESSAGE, ...split(highSSignature)), + "ECDSA: invalid signature 's' value", + ); + expect(() => to2098Format(highSSignature)).to.throw("invalid signature 's' value"); + }); + }); + + context('toEthSignedMessageHash', function () { + it('prefixes bytes32 data correctly', async function () { + expect(await this.ecdsa.methods['$toEthSignedMessageHash(bytes32)'](TEST_MESSAGE)).to.equal( + toEthSignedMessageHash(TEST_MESSAGE), + ); + }); + + it('prefixes dynamic length data correctly', async function () { + expect(await this.ecdsa.methods['$toEthSignedMessageHash(bytes)'](NON_HASH_MESSAGE)).to.equal( + toEthSignedMessageHash(NON_HASH_MESSAGE), + ); + }); + }); +}); diff --git a/lib/openzeppelin-contracts/test/utils/cryptography/EIP712.test.js b/lib/openzeppelin-contracts/test/utils/cryptography/EIP712.test.js new file mode 100644 index 0000000..8c20b91 --- /dev/null +++ b/lib/openzeppelin-contracts/test/utils/cryptography/EIP712.test.js @@ -0,0 +1,63 @@ +const ethSigUtil = require('eth-sig-util'); +const Wallet = require('ethereumjs-wallet').default; + +const { EIP712Domain, domainSeparator, hashTypedData } = require('../../helpers/eip712'); +const { getChainId } = require('../../helpers/chainid'); + +const EIP712Verifier = artifacts.require('$EIP712Verifier'); + +contract('EIP712', function (accounts) { + const [mailTo] = accounts; + + const name = 'A Name'; + const version = '1'; + + beforeEach('deploying', async function () { + this.eip712 = await EIP712Verifier.new(name, version); + + this.domain = { + name, + version, + chainId: await getChainId(), + verifyingContract: this.eip712.address, + }; + }); + + it('domain separator', async function () { + const expected = await domainSeparator(this.domain); + + expect(await this.eip712.$_domainSeparatorV4()).to.equal(expected); + }); + + it('hash digest', async function () { + const structhash = web3.utils.randomHex(32); + const expected = await hashTypedData(this.domain, structhash); + + expect(await this.eip712.$_hashTypedDataV4(structhash)).to.be.equal(expected); + }); + + it('digest', async function () { + const message = { + to: mailTo, + contents: 'very interesting', + }; + + const data = { + types: { + EIP712Domain, + Mail: [ + { name: 'to', type: 'address' }, + { name: 'contents', type: 'string' }, + ], + }, + domain: this.domain, + primaryType: 'Mail', + message, + }; + + const wallet = Wallet.generate(); + const signature = ethSigUtil.signTypedMessage(wallet.getPrivateKey(), { data }); + + await this.eip712.verify(signature, wallet.getAddressString(), message.to, message.contents); + }); +}); diff --git a/lib/openzeppelin-contracts/test/utils/cryptography/MerkleProof.test.js b/lib/openzeppelin-contracts/test/utils/cryptography/MerkleProof.test.js new file mode 100644 index 0000000..62157b5 --- /dev/null +++ b/lib/openzeppelin-contracts/test/utils/cryptography/MerkleProof.test.js @@ -0,0 +1,180 @@ +require('@openzeppelin/test-helpers'); + +const { expectRevert } = require('@openzeppelin/test-helpers'); +const { MerkleTree } = require('merkletreejs'); +const keccak256 = require('keccak256'); + +const { expect } = require('chai'); + +const MerkleProof = artifacts.require('$MerkleProof'); + +contract('MerkleProof', function () { + beforeEach(async function () { + this.merkleProof = await MerkleProof.new(); + }); + + describe('verify', function () { + it('returns true for a valid Merkle proof', async function () { + const elements = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/='.split(''); + const merkleTree = new MerkleTree(elements, keccak256, { hashLeaves: true, sortPairs: true }); + + const root = merkleTree.getHexRoot(); + + const leaf = keccak256(elements[0]); + + const proof = merkleTree.getHexProof(leaf); + + expect(await this.merkleProof.$verify(proof, root, leaf)).to.equal(true); + expect(await this.merkleProof.$verifyCalldata(proof, root, leaf)).to.equal(true); + + // For demonstration, it is also possible to create valid proofs for certain 64-byte values *not* in elements: + const noSuchLeaf = keccak256( + Buffer.concat([keccak256(elements[0]), keccak256(elements[1])].sort(Buffer.compare)), + ); + expect(await this.merkleProof.$verify(proof.slice(1), root, noSuchLeaf)).to.equal(true); + expect(await this.merkleProof.$verifyCalldata(proof.slice(1), root, noSuchLeaf)).to.equal(true); + }); + + it('returns false for an invalid Merkle proof', async function () { + const correctElements = ['a', 'b', 'c']; + const correctMerkleTree = new MerkleTree(correctElements, keccak256, { hashLeaves: true, sortPairs: true }); + + const correctRoot = correctMerkleTree.getHexRoot(); + + const correctLeaf = keccak256(correctElements[0]); + + const badElements = ['d', 'e', 'f']; + const badMerkleTree = new MerkleTree(badElements); + + const badProof = badMerkleTree.getHexProof(badElements[0]); + + expect(await this.merkleProof.$verify(badProof, correctRoot, correctLeaf)).to.equal(false); + expect(await this.merkleProof.$verifyCalldata(badProof, correctRoot, correctLeaf)).to.equal(false); + }); + + it('returns false for a Merkle proof of invalid length', async function () { + const elements = ['a', 'b', 'c']; + const merkleTree = new MerkleTree(elements, keccak256, { hashLeaves: true, sortPairs: true }); + + const root = merkleTree.getHexRoot(); + + const leaf = keccak256(elements[0]); + + const proof = merkleTree.getHexProof(leaf); + const badProof = proof.slice(0, proof.length - 5); + + expect(await this.merkleProof.$verify(badProof, root, leaf)).to.equal(false); + expect(await this.merkleProof.$verifyCalldata(badProof, root, leaf)).to.equal(false); + }); + }); + + describe('multiProofVerify', function () { + it('returns true for a valid Merkle multi proof', async function () { + const leaves = ['a', 'b', 'c', 'd', 'e', 'f'].map(keccak256).sort(Buffer.compare); + const merkleTree = new MerkleTree(leaves, keccak256, { sort: true }); + + const root = merkleTree.getRoot(); + const proofLeaves = ['b', 'f', 'd'].map(keccak256).sort(Buffer.compare); + const proof = merkleTree.getMultiProof(proofLeaves); + const proofFlags = merkleTree.getProofFlags(proofLeaves, proof); + + expect(await this.merkleProof.$multiProofVerify(proof, proofFlags, root, proofLeaves)).to.equal(true); + expect(await this.merkleProof.$multiProofVerifyCalldata(proof, proofFlags, root, proofLeaves)).to.equal(true); + }); + + it('returns false for an invalid Merkle multi proof', async function () { + const leaves = ['a', 'b', 'c', 'd', 'e', 'f'].map(keccak256).sort(Buffer.compare); + const merkleTree = new MerkleTree(leaves, keccak256, { sort: true }); + + const root = merkleTree.getRoot(); + const badProofLeaves = ['g', 'h', 'i'].map(keccak256).sort(Buffer.compare); + const badMerkleTree = new MerkleTree(badProofLeaves); + const badProof = badMerkleTree.getMultiProof(badProofLeaves); + const badProofFlags = badMerkleTree.getProofFlags(badProofLeaves, badProof); + + expect(await this.merkleProof.$multiProofVerify(badProof, badProofFlags, root, badProofLeaves)).to.equal(false); + expect(await this.merkleProof.$multiProofVerifyCalldata(badProof, badProofFlags, root, badProofLeaves)).to.equal( + false, + ); + }); + + it('revert with invalid multi proof #1', async function () { + const fill = Buffer.alloc(32); // This could be anything, we are reconstructing a fake branch + const leaves = ['a', 'b', 'c', 'd'].map(keccak256).sort(Buffer.compare); + const badLeaf = keccak256('e'); + const merkleTree = new MerkleTree(leaves, keccak256, { sort: true }); + + const root = merkleTree.getRoot(); + + await expectRevert( + this.merkleProof.$multiProofVerify( + [leaves[1], fill, merkleTree.layers[1][1]], + [false, false, false], + root, + [leaves[0], badLeaf], // A, E + ), + 'MerkleProof: invalid multiproof', + ); + await expectRevert( + this.merkleProof.$multiProofVerifyCalldata( + [leaves[1], fill, merkleTree.layers[1][1]], + [false, false, false], + root, + [leaves[0], badLeaf], // A, E + ), + 'MerkleProof: invalid multiproof', + ); + }); + + it('revert with invalid multi proof #2', async function () { + const fill = Buffer.alloc(32); // This could be anything, we are reconstructing a fake branch + const leaves = ['a', 'b', 'c', 'd'].map(keccak256).sort(Buffer.compare); + const badLeaf = keccak256('e'); + const merkleTree = new MerkleTree(leaves, keccak256, { sort: true }); + + const root = merkleTree.getRoot(); + + await expectRevert( + this.merkleProof.$multiProofVerify( + [leaves[1], fill, merkleTree.layers[1][1]], + [false, false, false, false], + root, + [badLeaf, leaves[0]], // A, E + ), + 'reverted with panic code 0x32', + ); + + await expectRevert( + this.merkleProof.$multiProofVerifyCalldata( + [leaves[1], fill, merkleTree.layers[1][1]], + [false, false, false, false], + root, + [badLeaf, leaves[0]], // A, E + ), + 'reverted with panic code 0x32', + ); + }); + + it('limit case: works for tree containing a single leaf', async function () { + const leaves = ['a'].map(keccak256).sort(Buffer.compare); + const merkleTree = new MerkleTree(leaves, keccak256, { sort: true }); + + const root = merkleTree.getRoot(); + const proofLeaves = ['a'].map(keccak256).sort(Buffer.compare); + const proof = merkleTree.getMultiProof(proofLeaves); + const proofFlags = merkleTree.getProofFlags(proofLeaves, proof); + + expect(await this.merkleProof.$multiProofVerify(proof, proofFlags, root, proofLeaves)).to.equal(true); + expect(await this.merkleProof.$multiProofVerifyCalldata(proof, proofFlags, root, proofLeaves)).to.equal(true); + }); + + it('limit case: can prove empty leaves', async function () { + const leaves = ['a', 'b', 'c', 'd'].map(keccak256).sort(Buffer.compare); + const merkleTree = new MerkleTree(leaves, keccak256, { sort: true }); + + const root = merkleTree.getRoot(); + expect(await this.merkleProof.$multiProofVerify([root], [], root, [])).to.equal(true); + expect(await this.merkleProof.$multiProofVerifyCalldata([root], [], root, [])).to.equal(true); + }); + }); +}); diff --git a/lib/openzeppelin-contracts/test/utils/cryptography/SignatureChecker.test.js b/lib/openzeppelin-contracts/test/utils/cryptography/SignatureChecker.test.js new file mode 100644 index 0000000..11054c3 --- /dev/null +++ b/lib/openzeppelin-contracts/test/utils/cryptography/SignatureChecker.test.js @@ -0,0 +1,83 @@ +const { toEthSignedMessageHash } = require('../../helpers/sign'); + +const { expect } = require('chai'); + +const SignatureChecker = artifacts.require('$SignatureChecker'); +const ERC1271WalletMock = artifacts.require('ERC1271WalletMock'); +const ERC1271MaliciousMock = artifacts.require('ERC1271MaliciousMock'); + +const TEST_MESSAGE = web3.utils.sha3('OpenZeppelin'); +const WRONG_MESSAGE = web3.utils.sha3('Nope'); + +contract('SignatureChecker (ERC1271)', function (accounts) { + const [signer, other] = accounts; + + before('deploying', async function () { + this.signaturechecker = await SignatureChecker.new(); + this.wallet = await ERC1271WalletMock.new(signer); + this.malicious = await ERC1271MaliciousMock.new(); + this.signature = await web3.eth.sign(TEST_MESSAGE, signer); + }); + + context('EOA account', function () { + it('with matching signer and signature', async function () { + expect( + await this.signaturechecker.$isValidSignatureNow(signer, toEthSignedMessageHash(TEST_MESSAGE), this.signature), + ).to.equal(true); + }); + + it('with invalid signer', async function () { + expect( + await this.signaturechecker.$isValidSignatureNow(other, toEthSignedMessageHash(TEST_MESSAGE), this.signature), + ).to.equal(false); + }); + + it('with invalid signature', async function () { + expect( + await this.signaturechecker.$isValidSignatureNow(signer, toEthSignedMessageHash(WRONG_MESSAGE), this.signature), + ).to.equal(false); + }); + }); + + context('ERC1271 wallet', function () { + it('with matching signer and signature', async function () { + expect( + await this.signaturechecker.$isValidSignatureNow( + this.wallet.address, + toEthSignedMessageHash(TEST_MESSAGE), + this.signature, + ), + ).to.equal(true); + }); + + it('with invalid signer', async function () { + expect( + await this.signaturechecker.$isValidSignatureNow( + this.signaturechecker.address, + toEthSignedMessageHash(TEST_MESSAGE), + this.signature, + ), + ).to.equal(false); + }); + + it('with invalid signature', async function () { + expect( + await this.signaturechecker.$isValidSignatureNow( + this.wallet.address, + toEthSignedMessageHash(WRONG_MESSAGE), + this.signature, + ), + ).to.equal(false); + }); + + it('with malicious wallet', async function () { + expect( + await this.signaturechecker.$isValidSignatureNow( + this.malicious.address, + toEthSignedMessageHash(TEST_MESSAGE), + this.signature, + ), + ).to.equal(false); + }); + }); +}); diff --git a/lib/openzeppelin-contracts/test/utils/escrow/ConditionalEscrow.test.js b/lib/openzeppelin-contracts/test/utils/escrow/ConditionalEscrow.test.js new file mode 100644 index 0000000..9e17a8b --- /dev/null +++ b/lib/openzeppelin-contracts/test/utils/escrow/ConditionalEscrow.test.js @@ -0,0 +1,37 @@ +const { ether, expectRevert } = require('@openzeppelin/test-helpers'); +const { shouldBehaveLikeEscrow } = require('./Escrow.behavior'); + +const ConditionalEscrowMock = artifacts.require('ConditionalEscrowMock'); + +contract('ConditionalEscrow', function (accounts) { + const [owner, payee, ...otherAccounts] = accounts; + + beforeEach(async function () { + this.escrow = await ConditionalEscrowMock.new({ from: owner }); + }); + + context('when withdrawal is allowed', function () { + beforeEach(async function () { + await Promise.all(otherAccounts.map(payee => this.escrow.setAllowed(payee, true))); + }); + + shouldBehaveLikeEscrow(owner, otherAccounts); + }); + + context('when withdrawal is disallowed', function () { + const amount = ether('23'); + + beforeEach(async function () { + await this.escrow.setAllowed(payee, false); + }); + + it('reverts on withdrawals', async function () { + await this.escrow.deposit(payee, { from: owner, value: amount }); + + await expectRevert( + this.escrow.withdraw(payee, { from: owner }), + 'ConditionalEscrow: payee is not allowed to withdraw', + ); + }); + }); +}); diff --git a/lib/openzeppelin-contracts/test/utils/escrow/Escrow.behavior.js b/lib/openzeppelin-contracts/test/utils/escrow/Escrow.behavior.js new file mode 100644 index 0000000..f2059ed --- /dev/null +++ b/lib/openzeppelin-contracts/test/utils/escrow/Escrow.behavior.js @@ -0,0 +1,90 @@ +const { balance, ether, expectEvent, expectRevert } = require('@openzeppelin/test-helpers'); + +const { expect } = require('chai'); + +function shouldBehaveLikeEscrow(owner, [payee1, payee2]) { + const amount = ether('42'); + + describe('as an escrow', function () { + describe('deposits', function () { + it('can accept a single deposit', async function () { + await this.escrow.deposit(payee1, { from: owner, value: amount }); + + expect(await balance.current(this.escrow.address)).to.be.bignumber.equal(amount); + + expect(await this.escrow.depositsOf(payee1)).to.be.bignumber.equal(amount); + }); + + it('can accept an empty deposit', async function () { + await this.escrow.deposit(payee1, { from: owner, value: 0 }); + }); + + it('only the owner can deposit', async function () { + await expectRevert(this.escrow.deposit(payee1, { from: payee2 }), 'Ownable: caller is not the owner'); + }); + + it('emits a deposited event', async function () { + const receipt = await this.escrow.deposit(payee1, { from: owner, value: amount }); + expectEvent(receipt, 'Deposited', { + payee: payee1, + weiAmount: amount, + }); + }); + + it('can add multiple deposits on a single account', async function () { + await this.escrow.deposit(payee1, { from: owner, value: amount }); + await this.escrow.deposit(payee1, { from: owner, value: amount.muln(2) }); + + expect(await balance.current(this.escrow.address)).to.be.bignumber.equal(amount.muln(3)); + + expect(await this.escrow.depositsOf(payee1)).to.be.bignumber.equal(amount.muln(3)); + }); + + it('can track deposits to multiple accounts', async function () { + await this.escrow.deposit(payee1, { from: owner, value: amount }); + await this.escrow.deposit(payee2, { from: owner, value: amount.muln(2) }); + + expect(await balance.current(this.escrow.address)).to.be.bignumber.equal(amount.muln(3)); + + expect(await this.escrow.depositsOf(payee1)).to.be.bignumber.equal(amount); + + expect(await this.escrow.depositsOf(payee2)).to.be.bignumber.equal(amount.muln(2)); + }); + }); + + describe('withdrawals', async function () { + it('can withdraw payments', async function () { + const balanceTracker = await balance.tracker(payee1); + + await this.escrow.deposit(payee1, { from: owner, value: amount }); + await this.escrow.withdraw(payee1, { from: owner }); + + expect(await balanceTracker.delta()).to.be.bignumber.equal(amount); + + expect(await balance.current(this.escrow.address)).to.be.bignumber.equal('0'); + expect(await this.escrow.depositsOf(payee1)).to.be.bignumber.equal('0'); + }); + + it('can do an empty withdrawal', async function () { + await this.escrow.withdraw(payee1, { from: owner }); + }); + + it('only the owner can withdraw', async function () { + await expectRevert(this.escrow.withdraw(payee1, { from: payee1 }), 'Ownable: caller is not the owner'); + }); + + it('emits a withdrawn event', async function () { + await this.escrow.deposit(payee1, { from: owner, value: amount }); + const receipt = await this.escrow.withdraw(payee1, { from: owner }); + expectEvent(receipt, 'Withdrawn', { + payee: payee1, + weiAmount: amount, + }); + }); + }); + }); +} + +module.exports = { + shouldBehaveLikeEscrow, +}; diff --git a/lib/openzeppelin-contracts/test/utils/escrow/Escrow.test.js b/lib/openzeppelin-contracts/test/utils/escrow/Escrow.test.js new file mode 100644 index 0000000..4762790 --- /dev/null +++ b/lib/openzeppelin-contracts/test/utils/escrow/Escrow.test.js @@ -0,0 +1,14 @@ +require('@openzeppelin/test-helpers'); +const { shouldBehaveLikeEscrow } = require('./Escrow.behavior'); + +const Escrow = artifacts.require('Escrow'); + +contract('Escrow', function (accounts) { + const [owner, ...otherAccounts] = accounts; + + beforeEach(async function () { + this.escrow = await Escrow.new({ from: owner }); + }); + + shouldBehaveLikeEscrow(owner, otherAccounts); +}); diff --git a/lib/openzeppelin-contracts/test/utils/escrow/RefundEscrow.test.js b/lib/openzeppelin-contracts/test/utils/escrow/RefundEscrow.test.js new file mode 100644 index 0000000..c5344db --- /dev/null +++ b/lib/openzeppelin-contracts/test/utils/escrow/RefundEscrow.test.js @@ -0,0 +1,143 @@ +const { balance, constants, ether, expectEvent, expectRevert } = require('@openzeppelin/test-helpers'); +const { ZERO_ADDRESS } = constants; + +const { expect } = require('chai'); + +const RefundEscrow = artifacts.require('RefundEscrow'); + +contract('RefundEscrow', function (accounts) { + const [owner, beneficiary, refundee1, refundee2] = accounts; + + const amount = ether('54'); + const refundees = [refundee1, refundee2]; + + it('requires a non-null beneficiary', async function () { + await expectRevert( + RefundEscrow.new(ZERO_ADDRESS, { from: owner }), + 'RefundEscrow: beneficiary is the zero address', + ); + }); + + context('once deployed', function () { + beforeEach(async function () { + this.escrow = await RefundEscrow.new(beneficiary, { from: owner }); + }); + + context('active state', function () { + it('has beneficiary and state', async function () { + expect(await this.escrow.beneficiary()).to.equal(beneficiary); + expect(await this.escrow.state()).to.be.bignumber.equal('0'); + }); + + it('accepts deposits', async function () { + await this.escrow.deposit(refundee1, { from: owner, value: amount }); + + expect(await this.escrow.depositsOf(refundee1)).to.be.bignumber.equal(amount); + }); + + it('does not refund refundees', async function () { + await this.escrow.deposit(refundee1, { from: owner, value: amount }); + await expectRevert(this.escrow.withdraw(refundee1), 'ConditionalEscrow: payee is not allowed to withdraw'); + }); + + it('does not allow beneficiary withdrawal', async function () { + await this.escrow.deposit(refundee1, { from: owner, value: amount }); + await expectRevert( + this.escrow.beneficiaryWithdraw(), + 'RefundEscrow: beneficiary can only withdraw while closed', + ); + }); + }); + + it('only the owner can enter closed state', async function () { + await expectRevert(this.escrow.close({ from: beneficiary }), 'Ownable: caller is not the owner'); + + const receipt = await this.escrow.close({ from: owner }); + expectEvent(receipt, 'RefundsClosed'); + }); + + context('closed state', function () { + beforeEach(async function () { + await Promise.all(refundees.map(refundee => this.escrow.deposit(refundee, { from: owner, value: amount }))); + + await this.escrow.close({ from: owner }); + }); + + it('rejects deposits', async function () { + await expectRevert( + this.escrow.deposit(refundee1, { from: owner, value: amount }), + 'RefundEscrow: can only deposit while active', + ); + }); + + it('does not refund refundees', async function () { + await expectRevert(this.escrow.withdraw(refundee1), 'ConditionalEscrow: payee is not allowed to withdraw'); + }); + + it('allows beneficiary withdrawal', async function () { + const balanceTracker = await balance.tracker(beneficiary); + await this.escrow.beneficiaryWithdraw(); + expect(await balanceTracker.delta()).to.be.bignumber.equal(amount.muln(refundees.length)); + }); + + it('prevents entering the refund state', async function () { + await expectRevert( + this.escrow.enableRefunds({ from: owner }), + 'RefundEscrow: can only enable refunds while active', + ); + }); + + it('prevents re-entering the closed state', async function () { + await expectRevert(this.escrow.close({ from: owner }), 'RefundEscrow: can only close while active'); + }); + }); + + it('only the owner can enter refund state', async function () { + await expectRevert(this.escrow.enableRefunds({ from: beneficiary }), 'Ownable: caller is not the owner'); + + const receipt = await this.escrow.enableRefunds({ from: owner }); + expectEvent(receipt, 'RefundsEnabled'); + }); + + context('refund state', function () { + beforeEach(async function () { + await Promise.all(refundees.map(refundee => this.escrow.deposit(refundee, { from: owner, value: amount }))); + + await this.escrow.enableRefunds({ from: owner }); + }); + + it('rejects deposits', async function () { + await expectRevert( + this.escrow.deposit(refundee1, { from: owner, value: amount }), + 'RefundEscrow: can only deposit while active', + ); + }); + + it('refunds refundees', async function () { + for (const refundee of [refundee1, refundee2]) { + const balanceTracker = await balance.tracker(refundee); + await this.escrow.withdraw(refundee, { from: owner }); + expect(await balanceTracker.delta()).to.be.bignumber.equal(amount); + } + }); + + it('does not allow beneficiary withdrawal', async function () { + await expectRevert( + this.escrow.beneficiaryWithdraw(), + 'RefundEscrow: beneficiary can only withdraw while closed', + ); + }); + + it('prevents entering the closed state', async function () { + await expectRevert(this.escrow.close({ from: owner }), 'RefundEscrow: can only close while active'); + }); + + it('prevents re-entering the refund state', async function () { + await expectRevert( + this.escrow.enableRefunds({ from: owner }), + 'RefundEscrow: can only enable refunds while active', + ); + }); + }); + }); +}); diff --git a/lib/openzeppelin-contracts/test/utils/introspection/ERC165.test.js b/lib/openzeppelin-contracts/test/utils/introspection/ERC165.test.js new file mode 100644 index 0000000..6d531c1 --- /dev/null +++ b/lib/openzeppelin-contracts/test/utils/introspection/ERC165.test.js @@ -0,0 +1,11 @@ +const { shouldSupportInterfaces } = require('./SupportsInterface.behavior'); + +const ERC165 = artifacts.require('$ERC165'); + +contract('ERC165', function () { + beforeEach(async function () { + this.mock = await ERC165.new(); + }); + + shouldSupportInterfaces(['ERC165']); +}); diff --git a/lib/openzeppelin-contracts/test/utils/introspection/ERC165Checker.test.js b/lib/openzeppelin-contracts/test/utils/introspection/ERC165Checker.test.js new file mode 100644 index 0000000..bb68428 --- /dev/null +++ b/lib/openzeppelin-contracts/test/utils/introspection/ERC165Checker.test.js @@ -0,0 +1,302 @@ +require('@openzeppelin/test-helpers'); + +const { expect } = require('chai'); + +const ERC165Checker = artifacts.require('$ERC165Checker'); +const ERC165Storage = artifacts.require('$ERC165Storage'); +const ERC165MissingData = artifacts.require('ERC165MissingData'); +const ERC165MaliciousData = artifacts.require('ERC165MaliciousData'); +const ERC165NotSupported = artifacts.require('ERC165NotSupported'); +const ERC165ReturnBombMock = artifacts.require('ERC165ReturnBombMock'); + +const DUMMY_ID = '0xdeadbeef'; +const DUMMY_ID_2 = '0xcafebabe'; +const DUMMY_ID_3 = '0xdecafbad'; +const DUMMY_UNSUPPORTED_ID = '0xbaddcafe'; +const DUMMY_UNSUPPORTED_ID_2 = '0xbaadcafe'; +const DUMMY_ACCOUNT = '0x1111111111111111111111111111111111111111'; + +contract('ERC165Checker', function () { + beforeEach(async function () { + this.mock = await ERC165Checker.new(); + }); + + context('ERC165 missing return data', function () { + beforeEach(async function () { + this.target = await ERC165MissingData.new(); + }); + + it('does not support ERC165', async function () { + const supported = await this.mock.$supportsERC165(this.target.address); + expect(supported).to.equal(false); + }); + + it('does not support mock interface via supportsInterface', async function () { + const supported = await this.mock.$supportsInterface(this.target.address, DUMMY_ID); + expect(supported).to.equal(false); + }); + + it('does not support mock interface via supportsAllInterfaces', async function () { + const supported = await this.mock.$supportsAllInterfaces(this.target.address, [DUMMY_ID]); + expect(supported).to.equal(false); + }); + + it('does not support mock interface via getSupportedInterfaces', async function () { + const supported = await this.mock.$getSupportedInterfaces(this.target.address, [DUMMY_ID]); + expect(supported.length).to.equal(1); + expect(supported[0]).to.equal(false); + }); + + it('does not support mock interface via supportsERC165InterfaceUnchecked', async function () { + const supported = await this.mock.$supportsERC165InterfaceUnchecked(this.target.address, DUMMY_ID); + expect(supported).to.equal(false); + }); + }); + + context('ERC165 malicious return data', function () { + beforeEach(async function () { + this.target = await ERC165MaliciousData.new(); + }); + + it('does not support ERC165', async function () { + const supported = await this.mock.$supportsERC165(this.target.address); + expect(supported).to.equal(false); + }); + + it('does not support mock interface via supportsInterface', async function () { + const supported = await this.mock.$supportsInterface(this.target.address, DUMMY_ID); + expect(supported).to.equal(false); + }); + + it('does not support mock interface via supportsAllInterfaces', async function () { + const supported = await this.mock.$supportsAllInterfaces(this.target.address, [DUMMY_ID]); + expect(supported).to.equal(false); + }); + + it('does not support mock interface via getSupportedInterfaces', async function () { + const supported = await this.mock.$getSupportedInterfaces(this.target.address, [DUMMY_ID]); + expect(supported.length).to.equal(1); + expect(supported[0]).to.equal(false); + }); + + it('does not support mock interface via supportsERC165InterfaceUnchecked', async function () { + const supported = await this.mock.$supportsERC165InterfaceUnchecked(this.target.address, DUMMY_ID); + expect(supported).to.equal(true); + }); + }); + + context('ERC165 not supported', function () { + beforeEach(async function () { + this.target = await ERC165NotSupported.new(); + }); + + it('does not support ERC165', async function () { + const supported = await this.mock.$supportsERC165(this.target.address); + expect(supported).to.equal(false); + }); + + it('does not support mock interface via supportsInterface', async function () { + const supported = await this.mock.$supportsInterface(this.target.address, DUMMY_ID); + expect(supported).to.equal(false); + }); + + it('does not support mock interface via supportsAllInterfaces', async function () { + const supported = await this.mock.$supportsAllInterfaces(this.target.address, [DUMMY_ID]); + expect(supported).to.equal(false); + }); + + it('does not support mock interface via getSupportedInterfaces', async function () { + const supported = await this.mock.$getSupportedInterfaces(this.target.address, [DUMMY_ID]); + expect(supported.length).to.equal(1); + expect(supported[0]).to.equal(false); + }); + + it('does not support mock interface via supportsERC165InterfaceUnchecked', async function () { + const supported = await this.mock.$supportsERC165InterfaceUnchecked(this.target.address, DUMMY_ID); + expect(supported).to.equal(false); + }); + }); + + context('ERC165 supported', function () { + beforeEach(async function () { + this.target = await ERC165Storage.new(); + }); + + it('supports ERC165', async function () { + const supported = await this.mock.$supportsERC165(this.target.address); + expect(supported).to.equal(true); + }); + + it('does not support mock interface via supportsInterface', async function () { + const supported = await this.mock.$supportsInterface(this.target.address, DUMMY_ID); + expect(supported).to.equal(false); + }); + + it('does not support mock interface via supportsAllInterfaces', async function () { + const supported = await this.mock.$supportsAllInterfaces(this.target.address, [DUMMY_ID]); + expect(supported).to.equal(false); + }); + + it('does not support mock interface via getSupportedInterfaces', async function () { + const supported = await this.mock.$getSupportedInterfaces(this.target.address, [DUMMY_ID]); + expect(supported.length).to.equal(1); + expect(supported[0]).to.equal(false); + }); + + it('does not support mock interface via supportsERC165InterfaceUnchecked', async function () { + const supported = await this.mock.$supportsERC165InterfaceUnchecked(this.target.address, DUMMY_ID); + expect(supported).to.equal(false); + }); + }); + + context('ERC165 and single interface supported', function () { + beforeEach(async function () { + this.target = await ERC165Storage.new(); + await this.target.$_registerInterface(DUMMY_ID); + }); + + it('supports ERC165', async function () { + const supported = await this.mock.$supportsERC165(this.target.address); + expect(supported).to.equal(true); + }); + + it('supports mock interface via supportsInterface', async function () { + const supported = await this.mock.$supportsInterface(this.target.address, DUMMY_ID); + expect(supported).to.equal(true); + }); + + it('supports mock interface via supportsAllInterfaces', async function () { + const supported = await this.mock.$supportsAllInterfaces(this.target.address, [DUMMY_ID]); + expect(supported).to.equal(true); + }); + + it('supports mock interface via getSupportedInterfaces', async function () { + const supported = await this.mock.$getSupportedInterfaces(this.target.address, [DUMMY_ID]); + expect(supported.length).to.equal(1); + expect(supported[0]).to.equal(true); + }); + + it('supports mock interface via supportsERC165InterfaceUnchecked', async function () { + const supported = await this.mock.$supportsERC165InterfaceUnchecked(this.target.address, DUMMY_ID); + expect(supported).to.equal(true); + }); + }); + + context('ERC165 and many interfaces supported', function () { + beforeEach(async function () { + this.supportedInterfaces = [DUMMY_ID, DUMMY_ID_2, DUMMY_ID_3]; + this.target = await ERC165Storage.new(); + await Promise.all(this.supportedInterfaces.map(interfaceId => this.target.$_registerInterface(interfaceId))); + }); + + it('supports ERC165', async function () { + const supported = await this.mock.$supportsERC165(this.target.address); + expect(supported).to.equal(true); + }); + + it('supports each interfaceId via supportsInterface', async function () { + for (const interfaceId of this.supportedInterfaces) { + const supported = await this.mock.$supportsInterface(this.target.address, interfaceId); + expect(supported).to.equal(true); + } + }); + + it('supports all interfaceIds via supportsAllInterfaces', async function () { + const supported = await this.mock.$supportsAllInterfaces(this.target.address, this.supportedInterfaces); + expect(supported).to.equal(true); + }); + + it('supports none of the interfaces queried via supportsAllInterfaces', async function () { + const interfaceIdsToTest = [DUMMY_UNSUPPORTED_ID, DUMMY_UNSUPPORTED_ID_2]; + + const supported = await this.mock.$supportsAllInterfaces(this.target.address, interfaceIdsToTest); + expect(supported).to.equal(false); + }); + + it('supports not all of the interfaces queried via supportsAllInterfaces', async function () { + const interfaceIdsToTest = [...this.supportedInterfaces, DUMMY_UNSUPPORTED_ID]; + + const supported = await this.mock.$supportsAllInterfaces(this.target.address, interfaceIdsToTest); + expect(supported).to.equal(false); + }); + + it('supports all interfaceIds via getSupportedInterfaces', async function () { + const supported = await this.mock.$getSupportedInterfaces(this.target.address, this.supportedInterfaces); + expect(supported.length).to.equal(3); + expect(supported[0]).to.equal(true); + expect(supported[1]).to.equal(true); + expect(supported[2]).to.equal(true); + }); + + it('supports none of the interfaces queried via getSupportedInterfaces', async function () { + const interfaceIdsToTest = [DUMMY_UNSUPPORTED_ID, DUMMY_UNSUPPORTED_ID_2]; + + const supported = await this.mock.$getSupportedInterfaces(this.target.address, interfaceIdsToTest); + expect(supported.length).to.equal(2); + expect(supported[0]).to.equal(false); + expect(supported[1]).to.equal(false); + }); + + it('supports not all of the interfaces queried via getSupportedInterfaces', async function () { + const interfaceIdsToTest = [...this.supportedInterfaces, DUMMY_UNSUPPORTED_ID]; + + const supported = await this.mock.$getSupportedInterfaces(this.target.address, interfaceIdsToTest); + expect(supported.length).to.equal(4); + expect(supported[0]).to.equal(true); + expect(supported[1]).to.equal(true); + expect(supported[2]).to.equal(true); + expect(supported[3]).to.equal(false); + }); + + it('supports each interfaceId via supportsERC165InterfaceUnchecked', async function () { + for (const interfaceId of this.supportedInterfaces) { + const supported = await this.mock.$supportsERC165InterfaceUnchecked(this.target.address, interfaceId); + expect(supported).to.equal(true); + } + }); + }); + + context('account address does not support ERC165', function () { + it('does not support ERC165', async function () { + const supported = await this.mock.$supportsERC165(DUMMY_ACCOUNT); + expect(supported).to.equal(false); + }); + + it('does not support mock interface via supportsInterface', async function () { + const supported = await this.mock.$supportsInterface(DUMMY_ACCOUNT, DUMMY_ID); + expect(supported).to.equal(false); + }); + + it('does not support mock interface via supportsAllInterfaces', async function () { + const supported = await this.mock.$supportsAllInterfaces(DUMMY_ACCOUNT, [DUMMY_ID]); + expect(supported).to.equal(false); + }); + + it('does not support mock interface via getSupportedInterfaces', async function () { + const supported = await this.mock.$getSupportedInterfaces(DUMMY_ACCOUNT, [DUMMY_ID]); + expect(supported.length).to.equal(1); + expect(supported[0]).to.equal(false); + }); + + it('does not support mock interface via supportsERC165InterfaceUnchecked', async function () { + const supported = await this.mock.$supportsERC165InterfaceUnchecked(DUMMY_ACCOUNT, DUMMY_ID); + expect(supported).to.equal(false); + }); + }); + + it('Return bomb resistance', async function () { + this.target = await ERC165ReturnBombMock.new(); + + const tx1 = await this.mock.$supportsInterface.sendTransaction(this.target.address, DUMMY_ID); + expect(tx1.receipt.gasUsed).to.be.lessThan(120000); // 3*30k + 21k + some margin + + const tx2 = await this.mock.$getSupportedInterfaces.sendTransaction(this.target.address, [ + DUMMY_ID, + DUMMY_ID_2, + DUMMY_ID_3, + DUMMY_UNSUPPORTED_ID, + DUMMY_UNSUPPORTED_ID_2, + ]); + expect(tx2.receipt.gasUsed).to.be.lessThan(250000); // (2+5)*30k + 21k + some margin + }); +}); diff --git a/lib/openzeppelin-contracts/test/utils/introspection/ERC165Storage.test.js b/lib/openzeppelin-contracts/test/utils/introspection/ERC165Storage.test.js new file mode 100644 index 0000000..c78caf8 --- /dev/null +++ b/lib/openzeppelin-contracts/test/utils/introspection/ERC165Storage.test.js @@ -0,0 +1,23 @@ +const { expectRevert } = require('@openzeppelin/test-helpers'); + +const { shouldSupportInterfaces } = require('./SupportsInterface.behavior'); + +const ERC165Storage = artifacts.require('$ERC165Storage'); + +contract('ERC165Storage', function () { + beforeEach(async function () { + this.mock = await ERC165Storage.new(); + }); + + it('register interface', async function () { + expect(await this.mock.supportsInterface('0x00000001')).to.be.equal(false); + await this.mock.$_registerInterface('0x00000001'); + expect(await this.mock.supportsInterface('0x00000001')).to.be.equal(true); + }); + + it('does not allow 0xffffffff', async function () { + await expectRevert(this.mock.$_registerInterface('0xffffffff'), 'ERC165: invalid interface id'); + }); + + shouldSupportInterfaces(['ERC165']); +}); diff --git a/lib/openzeppelin-contracts/test/utils/introspection/ERC1820Implementer.test.js b/lib/openzeppelin-contracts/test/utils/introspection/ERC1820Implementer.test.js new file mode 100644 index 0000000..83d0a65 --- /dev/null +++ b/lib/openzeppelin-contracts/test/utils/introspection/ERC1820Implementer.test.js @@ -0,0 +1,71 @@ +const { expectRevert, singletons } = require('@openzeppelin/test-helpers'); +const { bufferToHex, keccakFromString } = require('ethereumjs-util'); + +const { expect } = require('chai'); + +const ERC1820Implementer = artifacts.require('$ERC1820Implementer'); + +contract('ERC1820Implementer', function (accounts) { + const [registryFunder, implementee, other] = accounts; + + const ERC1820_ACCEPT_MAGIC = bufferToHex(keccakFromString('ERC1820_ACCEPT_MAGIC')); + + beforeEach(async function () { + this.implementer = await ERC1820Implementer.new(); + this.registry = await singletons.ERC1820Registry(registryFunder); + + this.interfaceA = bufferToHex(keccakFromString('interfaceA')); + this.interfaceB = bufferToHex(keccakFromString('interfaceB')); + }); + + context('with no registered interfaces', function () { + it('returns false when interface implementation is queried', async function () { + expect(await this.implementer.canImplementInterfaceForAddress(this.interfaceA, implementee)).to.not.equal( + ERC1820_ACCEPT_MAGIC, + ); + }); + + it('reverts when attempting to set as implementer in the registry', async function () { + await expectRevert( + this.registry.setInterfaceImplementer(implementee, this.interfaceA, this.implementer.address, { + from: implementee, + }), + 'Does not implement the interface', + ); + }); + }); + + context('with registered interfaces', function () { + beforeEach(async function () { + await this.implementer.$_registerInterfaceForAddress(this.interfaceA, implementee); + }); + + it('returns true when interface implementation is queried', async function () { + expect(await this.implementer.canImplementInterfaceForAddress(this.interfaceA, implementee)).to.equal( + ERC1820_ACCEPT_MAGIC, + ); + }); + + it('returns false when interface implementation for non-supported interfaces is queried', async function () { + expect(await this.implementer.canImplementInterfaceForAddress(this.interfaceB, implementee)).to.not.equal( + ERC1820_ACCEPT_MAGIC, + ); + }); + + it('returns false when interface implementation for non-supported addresses is queried', async function () { + expect(await this.implementer.canImplementInterfaceForAddress(this.interfaceA, other)).to.not.equal( + ERC1820_ACCEPT_MAGIC, + ); + }); + + it('can be set as an implementer for supported interfaces in the registry', async function () { + await this.registry.setInterfaceImplementer(implementee, this.interfaceA, this.implementer.address, { + from: implementee, + }); + + expect(await this.registry.getInterfaceImplementer(implementee, this.interfaceA)).to.equal( + this.implementer.address, + ); + }); + }); +}); diff --git a/lib/openzeppelin-contracts/test/utils/introspection/SupportsInterface.behavior.js b/lib/openzeppelin-contracts/test/utils/introspection/SupportsInterface.behavior.js new file mode 100644 index 0000000..ba5aca2 --- /dev/null +++ b/lib/openzeppelin-contracts/test/utils/introspection/SupportsInterface.behavior.js @@ -0,0 +1,128 @@ +const { makeInterfaceId } = require('@openzeppelin/test-helpers'); + +const { expect } = require('chai'); + +const INTERFACES = { + ERC165: ['supportsInterface(bytes4)'], + ERC721: [ + 'balanceOf(address)', + 'ownerOf(uint256)', + 'approve(address,uint256)', + 'getApproved(uint256)', + 'setApprovalForAll(address,bool)', + 'isApprovedForAll(address,address)', + 'transferFrom(address,address,uint256)', + 'safeTransferFrom(address,address,uint256)', + 'safeTransferFrom(address,address,uint256,bytes)', + ], + ERC721Enumerable: ['totalSupply()', 'tokenOfOwnerByIndex(address,uint256)', 'tokenByIndex(uint256)'], + ERC721Metadata: ['name()', 'symbol()', 'tokenURI(uint256)'], + ERC1155: [ + 'balanceOf(address,uint256)', + 'balanceOfBatch(address[],uint256[])', + 'setApprovalForAll(address,bool)', + 'isApprovedForAll(address,address)', + 'safeTransferFrom(address,address,uint256,uint256,bytes)', + 'safeBatchTransferFrom(address,address,uint256[],uint256[],bytes)', + ], + ERC1155Receiver: [ + 'onERC1155Received(address,address,uint256,uint256,bytes)', + 'onERC1155BatchReceived(address,address,uint256[],uint256[],bytes)', + ], + AccessControl: [ + 'hasRole(bytes32,address)', + 'getRoleAdmin(bytes32)', + 'grantRole(bytes32,address)', + 'revokeRole(bytes32,address)', + 'renounceRole(bytes32,address)', + ], + AccessControlEnumerable: ['getRoleMember(bytes32,uint256)', 'getRoleMemberCount(bytes32)'], + Governor: [ + 'name()', + 'version()', + 'COUNTING_MODE()', + 'hashProposal(address[],uint256[],bytes[],bytes32)', + 'state(uint256)', + 'proposalSnapshot(uint256)', + 'proposalDeadline(uint256)', + 'votingDelay()', + 'votingPeriod()', + 'quorum(uint256)', + 'getVotes(address,uint256)', + 'hasVoted(uint256,address)', + 'propose(address[],uint256[],bytes[],string)', + 'execute(address[],uint256[],bytes[],bytes32)', + 'castVote(uint256,uint8)', + 'castVoteWithReason(uint256,uint8,string)', + 'castVoteBySig(uint256,uint8,uint8,bytes32,bytes32)', + ], + GovernorWithParams: [ + 'name()', + 'version()', + 'COUNTING_MODE()', + 'hashProposal(address[],uint256[],bytes[],bytes32)', + 'state(uint256)', + 'proposalSnapshot(uint256)', + 'proposalDeadline(uint256)', + 'votingDelay()', + 'votingPeriod()', + 'quorum(uint256)', + 'getVotes(address,uint256)', + 'getVotesWithParams(address,uint256,bytes)', + 'hasVoted(uint256,address)', + 'propose(address[],uint256[],bytes[],string)', + 'execute(address[],uint256[],bytes[],bytes32)', + 'castVote(uint256,uint8)', + 'castVoteWithReason(uint256,uint8,string)', + 'castVoteWithReasonAndParams(uint256,uint8,string,bytes)', + 'castVoteBySig(uint256,uint8,uint8,bytes32,bytes32)', + 'castVoteWithReasonAndParamsBySig(uint256,uint8,string,bytes,uint8,bytes32,bytes32)', + ], + GovernorTimelock: ['timelock()', 'proposalEta(uint256)', 'queue(address[],uint256[],bytes[],bytes32)'], + ERC2981: ['royaltyInfo(uint256,uint256)'], +}; + +const INTERFACE_IDS = {}; +const FN_SIGNATURES = {}; +for (const k of Object.getOwnPropertyNames(INTERFACES)) { + INTERFACE_IDS[k] = makeInterfaceId.ERC165(INTERFACES[k]); + for (const fnName of INTERFACES[k]) { + // the interface id of a single function is equivalent to its function signature + FN_SIGNATURES[fnName] = makeInterfaceId.ERC165([fnName]); + } +} + +function shouldSupportInterfaces(interfaces = []) { + describe('ERC165', function () { + beforeEach(function () { + this.contractUnderTest = this.mock || this.token || this.holder || this.accessControl; + }); + + it('supportsInterface uses less than 30k gas', async function () { + for (const k of interfaces) { + const interfaceId = INTERFACE_IDS[k]; + expect(await this.contractUnderTest.supportsInterface.estimateGas(interfaceId)).to.be.lte(30000); + } + }); + + it('all interfaces are reported as supported', async function () { + for (const k of interfaces) { + const interfaceId = INTERFACE_IDS[k]; + expect(await this.contractUnderTest.supportsInterface(interfaceId)).to.equal(true); + } + }); + + it('all interface functions are in ABI', async function () { + for (const k of interfaces) { + for (const fnName of INTERFACES[k]) { + const fnSig = FN_SIGNATURES[fnName]; + expect(this.contractUnderTest.abi.filter(fn => fn.signature === fnSig).length).to.equal(1); + } + } + }); + }); +} + +module.exports = { + shouldSupportInterfaces, +}; diff --git a/lib/openzeppelin-contracts/test/utils/math/Math.t.sol b/lib/openzeppelin-contracts/test/utils/math/Math.t.sol new file mode 100644 index 0000000..5542baf --- /dev/null +++ b/lib/openzeppelin-contracts/test/utils/math/Math.t.sol @@ -0,0 +1,217 @@ +// SPDX-License-Identifier: MIT + +pragma solidity ^0.8.0; + +import "forge-std/Test.sol"; + +import "../../../contracts/utils/math/Math.sol"; +import "../../../contracts/utils/math/SafeMath.sol"; + +contract MathTest is Test { + // CEILDIV + function testCeilDiv(uint256 a, uint256 b) public { + vm.assume(b > 0); + + uint256 result = Math.ceilDiv(a, b); + + if (result == 0) { + assertEq(a, 0); + } else { + uint256 maxdiv = UINT256_MAX / b; + bool overflow = maxdiv * b < a; + assertTrue(a > b * (result - 1)); + assertTrue(overflow ? result == maxdiv + 1 : a <= b * result); + } + } + + // SQRT + function testSqrt(uint256 input, uint8 r) public { + Math.Rounding rounding = _asRounding(r); + + uint256 result = Math.sqrt(input, rounding); + + // square of result is bigger than input + if (_squareBigger(result, input)) { + assertTrue(rounding == Math.Rounding.Up); + assertTrue(_squareSmaller(result - 1, input)); + } + // square of result is smaller than input + else if (_squareSmaller(result, input)) { + assertFalse(rounding == Math.Rounding.Up); + assertTrue(_squareBigger(result + 1, input)); + } + // input is perfect square + else { + assertEq(result * result, input); + } + } + + function _squareBigger(uint256 value, uint256 ref) private pure returns (bool) { + (bool noOverflow, uint256 square) = SafeMath.tryMul(value, value); + return !noOverflow || square > ref; + } + + function _squareSmaller(uint256 value, uint256 ref) private pure returns (bool) { + return value * value < ref; + } + + // LOG2 + function testLog2(uint256 input, uint8 r) public { + Math.Rounding rounding = _asRounding(r); + + uint256 result = Math.log2(input, rounding); + + if (input == 0) { + assertEq(result, 0); + } else if (_powerOf2Bigger(result, input)) { + assertTrue(rounding == Math.Rounding.Up); + assertTrue(_powerOf2Smaller(result - 1, input)); + } else if (_powerOf2Smaller(result, input)) { + assertFalse(rounding == Math.Rounding.Up); + assertTrue(_powerOf2Bigger(result + 1, input)); + } else { + assertEq(2 ** result, input); + } + } + + function _powerOf2Bigger(uint256 value, uint256 ref) private pure returns (bool) { + return value >= 256 || 2 ** value > ref; // 2**256 overflows uint256 + } + + function _powerOf2Smaller(uint256 value, uint256 ref) private pure returns (bool) { + return 2 ** value < ref; + } + + // LOG10 + function testLog10(uint256 input, uint8 r) public { + Math.Rounding rounding = _asRounding(r); + + uint256 result = Math.log10(input, rounding); + + if (input == 0) { + assertEq(result, 0); + } else if (_powerOf10Bigger(result, input)) { + assertTrue(rounding == Math.Rounding.Up); + assertTrue(_powerOf10Smaller(result - 1, input)); + } else if (_powerOf10Smaller(result, input)) { + assertFalse(rounding == Math.Rounding.Up); + assertTrue(_powerOf10Bigger(result + 1, input)); + } else { + assertEq(10 ** result, input); + } + } + + function _powerOf10Bigger(uint256 value, uint256 ref) private pure returns (bool) { + return value >= 78 || 10 ** value > ref; // 10**78 overflows uint256 + } + + function _powerOf10Smaller(uint256 value, uint256 ref) private pure returns (bool) { + return 10 ** value < ref; + } + + // LOG256 + function testLog256(uint256 input, uint8 r) public { + Math.Rounding rounding = _asRounding(r); + + uint256 result = Math.log256(input, rounding); + + if (input == 0) { + assertEq(result, 0); + } else if (_powerOf256Bigger(result, input)) { + assertTrue(rounding == Math.Rounding.Up); + assertTrue(_powerOf256Smaller(result - 1, input)); + } else if (_powerOf256Smaller(result, input)) { + assertFalse(rounding == Math.Rounding.Up); + assertTrue(_powerOf256Bigger(result + 1, input)); + } else { + assertEq(256 ** result, input); + } + } + + function _powerOf256Bigger(uint256 value, uint256 ref) private pure returns (bool) { + return value >= 32 || 256 ** value > ref; // 256**32 overflows uint256 + } + + function _powerOf256Smaller(uint256 value, uint256 ref) private pure returns (bool) { + return 256 ** value < ref; + } + + // MULDIV + function testMulDiv(uint256 x, uint256 y, uint256 d) public { + // Full precision for x * y + (uint256 xyHi, uint256 xyLo) = _mulHighLow(x, y); + + // Assume result won't overflow (see {testMulDivDomain}) + // This also checks that `d` is positive + vm.assume(xyHi < d); + + // Perform muldiv + uint256 q = Math.mulDiv(x, y, d); + + // Full precision for q * d + (uint256 qdHi, uint256 qdLo) = _mulHighLow(q, d); + // Add remainder of x * y / d (computed as rem = (x * y % d)) + (uint256 qdRemLo, uint256 c) = _addCarry(qdLo, _mulmod(x, y, d)); + uint256 qdRemHi = qdHi + c; + + // Full precision check that x * y = q * d + rem + assertEq(xyHi, qdRemHi); + assertEq(xyLo, qdRemLo); + } + + function testMulDivDomain(uint256 x, uint256 y, uint256 d) public { + (uint256 xyHi, ) = _mulHighLow(x, y); + + // Violate {testMulDiv} assumption (covers d is 0 and result overflow) + vm.assume(xyHi >= d); + + // we are outside the scope of {testMulDiv}, we expect muldiv to revert + try this.muldiv(x, y, d) returns (uint256) { + fail(); + } catch {} + } + + // External call + function muldiv(uint256 x, uint256 y, uint256 d) external pure returns (uint256) { + return Math.mulDiv(x, y, d); + } + + // Helpers + function _asRounding(uint8 r) private returns (Math.Rounding) { + vm.assume(r < uint8(type(Math.Rounding).max)); + return Math.Rounding(r); + } + + function _mulmod(uint256 x, uint256 y, uint256 z) private pure returns (uint256 r) { + assembly { + r := mulmod(x, y, z) + } + } + + function _mulHighLow(uint256 x, uint256 y) private pure returns (uint256 high, uint256 low) { + (uint256 x0, uint256 x1) = (x & type(uint128).max, x >> 128); + (uint256 y0, uint256 y1) = (y & type(uint128).max, y >> 128); + + // Karatsuba algorithm + // https://en.wikipedia.org/wiki/Karatsuba_algorithm + uint256 z2 = x1 * y1; + uint256 z1a = x1 * y0; + uint256 z1b = x0 * y1; + uint256 z0 = x0 * y0; + + uint256 carry = ((z1a & type(uint128).max) + (z1b & type(uint128).max) + (z0 >> 128)) >> 128; + + high = z2 + (z1a >> 128) + (z1b >> 128) + carry; + + unchecked { + low = x * y; + } + } + + function _addCarry(uint256 x, uint256 y) private pure returns (uint256 res, uint256 carry) { + unchecked { + res = x + y; + } + carry = res < x ? 1 : 0; + } +} diff --git a/lib/openzeppelin-contracts/test/utils/math/Math.test.js b/lib/openzeppelin-contracts/test/utils/math/Math.test.js new file mode 100644 index 0000000..6b97a64 --- /dev/null +++ b/lib/openzeppelin-contracts/test/utils/math/Math.test.js @@ -0,0 +1,289 @@ +const { BN, constants, expectRevert } = require('@openzeppelin/test-helpers'); +const { expect } = require('chai'); +const { MAX_UINT256 } = constants; +const { Rounding } = require('../../helpers/enums.js'); + +const Math = artifacts.require('$Math'); + +contract('Math', function () { + const min = new BN('1234'); + const max = new BN('5678'); + const MAX_UINT256_SUB1 = MAX_UINT256.sub(new BN('1')); + const MAX_UINT256_SUB2 = MAX_UINT256.sub(new BN('2')); + + beforeEach(async function () { + this.math = await Math.new(); + }); + + describe('max', function () { + it('is correctly detected in first argument position', async function () { + expect(await this.math.$max(max, min)).to.be.bignumber.equal(max); + }); + + it('is correctly detected in second argument position', async function () { + expect(await this.math.$max(min, max)).to.be.bignumber.equal(max); + }); + }); + + describe('min', function () { + it('is correctly detected in first argument position', async function () { + expect(await this.math.$min(min, max)).to.be.bignumber.equal(min); + }); + + it('is correctly detected in second argument position', async function () { + expect(await this.math.$min(max, min)).to.be.bignumber.equal(min); + }); + }); + + describe('average', function () { + function bnAverage(a, b) { + return a.add(b).divn(2); + } + + it('is correctly calculated with two odd numbers', async function () { + const a = new BN('57417'); + const b = new BN('95431'); + expect(await this.math.$average(a, b)).to.be.bignumber.equal(bnAverage(a, b)); + }); + + it('is correctly calculated with two even numbers', async function () { + const a = new BN('42304'); + const b = new BN('84346'); + expect(await this.math.$average(a, b)).to.be.bignumber.equal(bnAverage(a, b)); + }); + + it('is correctly calculated with one even and one odd number', async function () { + const a = new BN('57417'); + const b = new BN('84346'); + expect(await this.math.$average(a, b)).to.be.bignumber.equal(bnAverage(a, b)); + }); + + it('is correctly calculated with two max uint256 numbers', async function () { + const a = MAX_UINT256; + expect(await this.math.$average(a, a)).to.be.bignumber.equal(bnAverage(a, a)); + }); + }); + + describe('ceilDiv', function () { + it('does not round up on exact division', async function () { + const a = new BN('10'); + const b = new BN('5'); + expect(await this.math.$ceilDiv(a, b)).to.be.bignumber.equal('2'); + }); + + it('rounds up on division with remainders', async function () { + const a = new BN('42'); + const b = new BN('13'); + expect(await this.math.$ceilDiv(a, b)).to.be.bignumber.equal('4'); + }); + + it('does not overflow', async function () { + const b = new BN('2'); + const result = new BN('1').shln(255); + expect(await this.math.$ceilDiv(MAX_UINT256, b)).to.be.bignumber.equal(result); + }); + + it('correctly computes max uint256 divided by 1', async function () { + const b = new BN('1'); + expect(await this.math.$ceilDiv(MAX_UINT256, b)).to.be.bignumber.equal(MAX_UINT256); + }); + }); + + describe('muldiv', function () { + it('divide by 0', async function () { + await expectRevert.unspecified(this.math.$mulDiv(1, 1, 0, Rounding.Down)); + }); + + describe('does round down', async function () { + it('small values', async function () { + expect(await this.math.$mulDiv('3', '4', '5', Rounding.Down)).to.be.bignumber.equal('2'); + expect(await this.math.$mulDiv('3', '5', '5', Rounding.Down)).to.be.bignumber.equal('3'); + }); + + it('large values', async function () { + expect( + await this.math.$mulDiv(new BN('42'), MAX_UINT256_SUB1, MAX_UINT256, Rounding.Down), + ).to.be.bignumber.equal(new BN('41')); + + expect(await this.math.$mulDiv(new BN('17'), MAX_UINT256, MAX_UINT256, Rounding.Down)).to.be.bignumber.equal( + new BN('17'), + ); + + expect( + await this.math.$mulDiv(MAX_UINT256_SUB1, MAX_UINT256_SUB1, MAX_UINT256, Rounding.Down), + ).to.be.bignumber.equal(MAX_UINT256_SUB2); + + expect( + await this.math.$mulDiv(MAX_UINT256, MAX_UINT256_SUB1, MAX_UINT256, Rounding.Down), + ).to.be.bignumber.equal(MAX_UINT256_SUB1); + + expect(await this.math.$mulDiv(MAX_UINT256, MAX_UINT256, MAX_UINT256, Rounding.Down)).to.be.bignumber.equal( + MAX_UINT256, + ); + }); + }); + + describe('does round up', async function () { + it('small values', async function () { + expect(await this.math.$mulDiv('3', '4', '5', Rounding.Up)).to.be.bignumber.equal('3'); + expect(await this.math.$mulDiv('3', '5', '5', Rounding.Up)).to.be.bignumber.equal('3'); + }); + + it('large values', async function () { + expect(await this.math.$mulDiv(new BN('42'), MAX_UINT256_SUB1, MAX_UINT256, Rounding.Up)).to.be.bignumber.equal( + new BN('42'), + ); + + expect(await this.math.$mulDiv(new BN('17'), MAX_UINT256, MAX_UINT256, Rounding.Up)).to.be.bignumber.equal( + new BN('17'), + ); + + expect( + await this.math.$mulDiv(MAX_UINT256_SUB1, MAX_UINT256_SUB1, MAX_UINT256, Rounding.Up), + ).to.be.bignumber.equal(MAX_UINT256_SUB1); + + expect(await this.math.$mulDiv(MAX_UINT256, MAX_UINT256_SUB1, MAX_UINT256, Rounding.Up)).to.be.bignumber.equal( + MAX_UINT256_SUB1, + ); + + expect(await this.math.$mulDiv(MAX_UINT256, MAX_UINT256, MAX_UINT256, Rounding.Up)).to.be.bignumber.equal( + MAX_UINT256, + ); + }); + }); + }); + + describe('sqrt', function () { + it('rounds down', async function () { + expect(await this.math.$sqrt('0', Rounding.Down)).to.be.bignumber.equal('0'); + expect(await this.math.$sqrt('1', Rounding.Down)).to.be.bignumber.equal('1'); + expect(await this.math.$sqrt('2', Rounding.Down)).to.be.bignumber.equal('1'); + expect(await this.math.$sqrt('3', Rounding.Down)).to.be.bignumber.equal('1'); + expect(await this.math.$sqrt('4', Rounding.Down)).to.be.bignumber.equal('2'); + expect(await this.math.$sqrt('144', Rounding.Down)).to.be.bignumber.equal('12'); + expect(await this.math.$sqrt('999999', Rounding.Down)).to.be.bignumber.equal('999'); + expect(await this.math.$sqrt('1000000', Rounding.Down)).to.be.bignumber.equal('1000'); + expect(await this.math.$sqrt('1000001', Rounding.Down)).to.be.bignumber.equal('1000'); + expect(await this.math.$sqrt('1002000', Rounding.Down)).to.be.bignumber.equal('1000'); + expect(await this.math.$sqrt('1002001', Rounding.Down)).to.be.bignumber.equal('1001'); + expect(await this.math.$sqrt(MAX_UINT256, Rounding.Down)).to.be.bignumber.equal( + '340282366920938463463374607431768211455', + ); + }); + + it('rounds up', async function () { + expect(await this.math.$sqrt('0', Rounding.Up)).to.be.bignumber.equal('0'); + expect(await this.math.$sqrt('1', Rounding.Up)).to.be.bignumber.equal('1'); + expect(await this.math.$sqrt('2', Rounding.Up)).to.be.bignumber.equal('2'); + expect(await this.math.$sqrt('3', Rounding.Up)).to.be.bignumber.equal('2'); + expect(await this.math.$sqrt('4', Rounding.Up)).to.be.bignumber.equal('2'); + expect(await this.math.$sqrt('144', Rounding.Up)).to.be.bignumber.equal('12'); + expect(await this.math.$sqrt('999999', Rounding.Up)).to.be.bignumber.equal('1000'); + expect(await this.math.$sqrt('1000000', Rounding.Up)).to.be.bignumber.equal('1000'); + expect(await this.math.$sqrt('1000001', Rounding.Up)).to.be.bignumber.equal('1001'); + expect(await this.math.$sqrt('1002000', Rounding.Up)).to.be.bignumber.equal('1001'); + expect(await this.math.$sqrt('1002001', Rounding.Up)).to.be.bignumber.equal('1001'); + expect(await this.math.$sqrt(MAX_UINT256, Rounding.Up)).to.be.bignumber.equal( + '340282366920938463463374607431768211456', + ); + }); + }); + + describe('log', function () { + describe('log2', function () { + it('rounds down', async function () { + // For some reason calling .$log2() directly fails + expect(await this.math.methods['$log2(uint256,uint8)']('0', Rounding.Down)).to.be.bignumber.equal('0'); + expect(await this.math.methods['$log2(uint256,uint8)']('1', Rounding.Down)).to.be.bignumber.equal('0'); + expect(await this.math.methods['$log2(uint256,uint8)']('2', Rounding.Down)).to.be.bignumber.equal('1'); + expect(await this.math.methods['$log2(uint256,uint8)']('3', Rounding.Down)).to.be.bignumber.equal('1'); + expect(await this.math.methods['$log2(uint256,uint8)']('4', Rounding.Down)).to.be.bignumber.equal('2'); + expect(await this.math.methods['$log2(uint256,uint8)']('5', Rounding.Down)).to.be.bignumber.equal('2'); + expect(await this.math.methods['$log2(uint256,uint8)']('6', Rounding.Down)).to.be.bignumber.equal('2'); + expect(await this.math.methods['$log2(uint256,uint8)']('7', Rounding.Down)).to.be.bignumber.equal('2'); + expect(await this.math.methods['$log2(uint256,uint8)']('8', Rounding.Down)).to.be.bignumber.equal('3'); + expect(await this.math.methods['$log2(uint256,uint8)']('9', Rounding.Down)).to.be.bignumber.equal('3'); + expect(await this.math.methods['$log2(uint256,uint8)'](MAX_UINT256, Rounding.Down)).to.be.bignumber.equal( + '255', + ); + }); + + it('rounds up', async function () { + // For some reason calling .$log2() directly fails + expect(await this.math.methods['$log2(uint256,uint8)']('0', Rounding.Up)).to.be.bignumber.equal('0'); + expect(await this.math.methods['$log2(uint256,uint8)']('1', Rounding.Up)).to.be.bignumber.equal('0'); + expect(await this.math.methods['$log2(uint256,uint8)']('2', Rounding.Up)).to.be.bignumber.equal('1'); + expect(await this.math.methods['$log2(uint256,uint8)']('3', Rounding.Up)).to.be.bignumber.equal('2'); + expect(await this.math.methods['$log2(uint256,uint8)']('4', Rounding.Up)).to.be.bignumber.equal('2'); + expect(await this.math.methods['$log2(uint256,uint8)']('5', Rounding.Up)).to.be.bignumber.equal('3'); + expect(await this.math.methods['$log2(uint256,uint8)']('6', Rounding.Up)).to.be.bignumber.equal('3'); + expect(await this.math.methods['$log2(uint256,uint8)']('7', Rounding.Up)).to.be.bignumber.equal('3'); + expect(await this.math.methods['$log2(uint256,uint8)']('8', Rounding.Up)).to.be.bignumber.equal('3'); + expect(await this.math.methods['$log2(uint256,uint8)']('9', Rounding.Up)).to.be.bignumber.equal('4'); + expect(await this.math.methods['$log2(uint256,uint8)'](MAX_UINT256, Rounding.Up)).to.be.bignumber.equal('256'); + }); + }); + + describe('log10', function () { + it('rounds down', async function () { + expect(await this.math.$log10('0', Rounding.Down)).to.be.bignumber.equal('0'); + expect(await this.math.$log10('1', Rounding.Down)).to.be.bignumber.equal('0'); + expect(await this.math.$log10('2', Rounding.Down)).to.be.bignumber.equal('0'); + expect(await this.math.$log10('9', Rounding.Down)).to.be.bignumber.equal('0'); + expect(await this.math.$log10('10', Rounding.Down)).to.be.bignumber.equal('1'); + expect(await this.math.$log10('11', Rounding.Down)).to.be.bignumber.equal('1'); + expect(await this.math.$log10('99', Rounding.Down)).to.be.bignumber.equal('1'); + expect(await this.math.$log10('100', Rounding.Down)).to.be.bignumber.equal('2'); + expect(await this.math.$log10('101', Rounding.Down)).to.be.bignumber.equal('2'); + expect(await this.math.$log10('999', Rounding.Down)).to.be.bignumber.equal('2'); + expect(await this.math.$log10('1000', Rounding.Down)).to.be.bignumber.equal('3'); + expect(await this.math.$log10('1001', Rounding.Down)).to.be.bignumber.equal('3'); + expect(await this.math.$log10(MAX_UINT256, Rounding.Down)).to.be.bignumber.equal('77'); + }); + + it('rounds up', async function () { + expect(await this.math.$log10('0', Rounding.Up)).to.be.bignumber.equal('0'); + expect(await this.math.$log10('1', Rounding.Up)).to.be.bignumber.equal('0'); + expect(await this.math.$log10('2', Rounding.Up)).to.be.bignumber.equal('1'); + expect(await this.math.$log10('9', Rounding.Up)).to.be.bignumber.equal('1'); + expect(await this.math.$log10('10', Rounding.Up)).to.be.bignumber.equal('1'); + expect(await this.math.$log10('11', Rounding.Up)).to.be.bignumber.equal('2'); + expect(await this.math.$log10('99', Rounding.Up)).to.be.bignumber.equal('2'); + expect(await this.math.$log10('100', Rounding.Up)).to.be.bignumber.equal('2'); + expect(await this.math.$log10('101', Rounding.Up)).to.be.bignumber.equal('3'); + expect(await this.math.$log10('999', Rounding.Up)).to.be.bignumber.equal('3'); + expect(await this.math.$log10('1000', Rounding.Up)).to.be.bignumber.equal('3'); + expect(await this.math.$log10('1001', Rounding.Up)).to.be.bignumber.equal('4'); + expect(await this.math.$log10(MAX_UINT256, Rounding.Up)).to.be.bignumber.equal('78'); + }); + }); + + describe('log256', function () { + it('rounds down', async function () { + expect(await this.math.$log256('0', Rounding.Down)).to.be.bignumber.equal('0'); + expect(await this.math.$log256('1', Rounding.Down)).to.be.bignumber.equal('0'); + expect(await this.math.$log256('2', Rounding.Down)).to.be.bignumber.equal('0'); + expect(await this.math.$log256('255', Rounding.Down)).to.be.bignumber.equal('0'); + expect(await this.math.$log256('256', Rounding.Down)).to.be.bignumber.equal('1'); + expect(await this.math.$log256('257', Rounding.Down)).to.be.bignumber.equal('1'); + expect(await this.math.$log256('65535', Rounding.Down)).to.be.bignumber.equal('1'); + expect(await this.math.$log256('65536', Rounding.Down)).to.be.bignumber.equal('2'); + expect(await this.math.$log256('65537', Rounding.Down)).to.be.bignumber.equal('2'); + expect(await this.math.$log256(MAX_UINT256, Rounding.Down)).to.be.bignumber.equal('31'); + }); + + it('rounds up', async function () { + expect(await this.math.$log256('0', Rounding.Up)).to.be.bignumber.equal('0'); + expect(await this.math.$log256('1', Rounding.Up)).to.be.bignumber.equal('0'); + expect(await this.math.$log256('2', Rounding.Up)).to.be.bignumber.equal('1'); + expect(await this.math.$log256('255', Rounding.Up)).to.be.bignumber.equal('1'); + expect(await this.math.$log256('256', Rounding.Up)).to.be.bignumber.equal('1'); + expect(await this.math.$log256('257', Rounding.Up)).to.be.bignumber.equal('2'); + expect(await this.math.$log256('65535', Rounding.Up)).to.be.bignumber.equal('2'); + expect(await this.math.$log256('65536', Rounding.Up)).to.be.bignumber.equal('2'); + expect(await this.math.$log256('65537', Rounding.Up)).to.be.bignumber.equal('3'); + expect(await this.math.$log256(MAX_UINT256, Rounding.Up)).to.be.bignumber.equal('32'); + }); + }); + }); +}); diff --git a/lib/openzeppelin-contracts/test/utils/math/SafeCast.test.js b/lib/openzeppelin-contracts/test/utils/math/SafeCast.test.js new file mode 100644 index 0000000..63223f5 --- /dev/null +++ b/lib/openzeppelin-contracts/test/utils/math/SafeCast.test.js @@ -0,0 +1,152 @@ +const { BN, expectRevert } = require('@openzeppelin/test-helpers'); +const { expect } = require('chai'); +const { range } = require('../../../scripts/helpers'); + +const SafeCast = artifacts.require('$SafeCast'); + +contract('SafeCast', async function () { + beforeEach(async function () { + this.safeCast = await SafeCast.new(); + }); + + function testToUint(bits) { + describe(`toUint${bits}`, () => { + const maxValue = new BN('2').pow(new BN(bits)).subn(1); + + it('downcasts 0', async function () { + expect(await this.safeCast[`$toUint${bits}`](0)).to.be.bignumber.equal('0'); + }); + + it('downcasts 1', async function () { + expect(await this.safeCast[`$toUint${bits}`](1)).to.be.bignumber.equal('1'); + }); + + it(`downcasts 2^${bits} - 1 (${maxValue})`, async function () { + expect(await this.safeCast[`$toUint${bits}`](maxValue)).to.be.bignumber.equal(maxValue); + }); + + it(`reverts when downcasting 2^${bits} (${maxValue.addn(1)})`, async function () { + await expectRevert( + this.safeCast[`$toUint${bits}`](maxValue.addn(1)), + `SafeCast: value doesn't fit in ${bits} bits`, + ); + }); + + it(`reverts when downcasting 2^${bits} + 1 (${maxValue.addn(2)})`, async function () { + await expectRevert( + this.safeCast[`$toUint${bits}`](maxValue.addn(2)), + `SafeCast: value doesn't fit in ${bits} bits`, + ); + }); + }); + } + + range(8, 256, 8).forEach(bits => testToUint(bits)); + + describe('toUint256', () => { + const maxInt256 = new BN('2').pow(new BN(255)).subn(1); + const minInt256 = new BN('2').pow(new BN(255)).neg(); + + it('casts 0', async function () { + expect(await this.safeCast.$toUint256(0)).to.be.bignumber.equal('0'); + }); + + it('casts 1', async function () { + expect(await this.safeCast.$toUint256(1)).to.be.bignumber.equal('1'); + }); + + it(`casts INT256_MAX (${maxInt256})`, async function () { + expect(await this.safeCast.$toUint256(maxInt256)).to.be.bignumber.equal(maxInt256); + }); + + it('reverts when casting -1', async function () { + await expectRevert(this.safeCast.$toUint256(-1), 'SafeCast: value must be positive'); + }); + + it(`reverts when casting INT256_MIN (${minInt256})`, async function () { + await expectRevert(this.safeCast.$toUint256(minInt256), 'SafeCast: value must be positive'); + }); + }); + + function testToInt(bits) { + describe(`toInt${bits}`, () => { + const minValue = new BN('-2').pow(new BN(bits - 1)); + const maxValue = new BN('2').pow(new BN(bits - 1)).subn(1); + + it('downcasts 0', async function () { + expect(await this.safeCast[`$toInt${bits}`](0)).to.be.bignumber.equal('0'); + }); + + it('downcasts 1', async function () { + expect(await this.safeCast[`$toInt${bits}`](1)).to.be.bignumber.equal('1'); + }); + + it('downcasts -1', async function () { + expect(await this.safeCast[`$toInt${bits}`](-1)).to.be.bignumber.equal('-1'); + }); + + it(`downcasts -2^${bits - 1} (${minValue})`, async function () { + expect(await this.safeCast[`$toInt${bits}`](minValue)).to.be.bignumber.equal(minValue); + }); + + it(`downcasts 2^${bits - 1} - 1 (${maxValue})`, async function () { + expect(await this.safeCast[`$toInt${bits}`](maxValue)).to.be.bignumber.equal(maxValue); + }); + + it(`reverts when downcasting -2^${bits - 1} - 1 (${minValue.subn(1)})`, async function () { + await expectRevert( + this.safeCast[`$toInt${bits}`](minValue.subn(1)), + `SafeCast: value doesn't fit in ${bits} bits`, + ); + }); + + it(`reverts when downcasting -2^${bits - 1} - 2 (${minValue.subn(2)})`, async function () { + await expectRevert( + this.safeCast[`$toInt${bits}`](minValue.subn(2)), + `SafeCast: value doesn't fit in ${bits} bits`, + ); + }); + + it(`reverts when downcasting 2^${bits - 1} (${maxValue.addn(1)})`, async function () { + await expectRevert( + this.safeCast[`$toInt${bits}`](maxValue.addn(1)), + `SafeCast: value doesn't fit in ${bits} bits`, + ); + }); + + it(`reverts when downcasting 2^${bits - 1} + 1 (${maxValue.addn(2)})`, async function () { + await expectRevert( + this.safeCast[`$toInt${bits}`](maxValue.addn(2)), + `SafeCast: value doesn't fit in ${bits} bits`, + ); + }); + }); + } + + range(8, 256, 8).forEach(bits => testToInt(bits)); + + describe('toInt256', () => { + const maxUint256 = new BN('2').pow(new BN(256)).subn(1); + const maxInt256 = new BN('2').pow(new BN(255)).subn(1); + + it('casts 0', async function () { + expect(await this.safeCast.$toInt256(0)).to.be.bignumber.equal('0'); + }); + + it('casts 1', async function () { + expect(await this.safeCast.$toInt256(1)).to.be.bignumber.equal('1'); + }); + + it(`casts INT256_MAX (${maxInt256})`, async function () { + expect(await this.safeCast.$toInt256(maxInt256)).to.be.bignumber.equal(maxInt256); + }); + + it(`reverts when casting INT256_MAX + 1 (${maxInt256.addn(1)})`, async function () { + await expectRevert(this.safeCast.$toInt256(maxInt256.addn(1)), "SafeCast: value doesn't fit in an int256"); + }); + + it(`reverts when casting UINT256_MAX (${maxUint256})`, async function () { + await expectRevert(this.safeCast.$toInt256(maxUint256), "SafeCast: value doesn't fit in an int256"); + }); + }); +}); diff --git a/lib/openzeppelin-contracts/test/utils/math/SafeMath.test.js b/lib/openzeppelin-contracts/test/utils/math/SafeMath.test.js new file mode 100644 index 0000000..9598ac5 --- /dev/null +++ b/lib/openzeppelin-contracts/test/utils/math/SafeMath.test.js @@ -0,0 +1,433 @@ +const { BN, constants, expectRevert } = require('@openzeppelin/test-helpers'); +const { MAX_UINT256 } = constants; + +const { expect } = require('chai'); + +const SafeMath = artifacts.require('$SafeMath'); +const SafeMathMemoryCheck = artifacts.require('$SafeMathMemoryCheck'); + +function expectStruct(value, expected) { + for (const key in expected) { + if (BN.isBN(value[key])) { + expect(value[key]).to.be.bignumber.equal(expected[key]); + } else { + expect(value[key]).to.be.equal(expected[key]); + } + } +} + +contract('SafeMath', function () { + beforeEach(async function () { + this.safeMath = await SafeMath.new(); + }); + + async function testCommutative(fn, lhs, rhs, expected, ...extra) { + expect(await fn(lhs, rhs, ...extra)).to.be.bignumber.equal(expected); + expect(await fn(rhs, lhs, ...extra)).to.be.bignumber.equal(expected); + } + + async function testFailsCommutative(fn, lhs, rhs, reason, ...extra) { + if (reason === undefined) { + await expectRevert.unspecified(fn(lhs, rhs, ...extra)); + await expectRevert.unspecified(fn(rhs, lhs, ...extra)); + } else { + await expectRevert(fn(lhs, rhs, ...extra), reason); + await expectRevert(fn(rhs, lhs, ...extra), reason); + } + } + + async function testCommutativeIterable(fn, lhs, rhs, expected, ...extra) { + expectStruct(await fn(lhs, rhs, ...extra), expected); + expectStruct(await fn(rhs, lhs, ...extra), expected); + } + + describe('with flag', function () { + describe('add', function () { + it('adds correctly', async function () { + const a = new BN('5678'); + const b = new BN('1234'); + + testCommutativeIterable(this.safeMath.$tryAdd, a, b, [true, a.add(b)]); + }); + + it('reverts on addition overflow', async function () { + const a = MAX_UINT256; + const b = new BN('1'); + + testCommutativeIterable(this.safeMath.$tryAdd, a, b, [false, '0']); + }); + }); + + describe('sub', function () { + it('subtracts correctly', async function () { + const a = new BN('5678'); + const b = new BN('1234'); + + expectStruct(await this.safeMath.$trySub(a, b), [true, a.sub(b)]); + }); + + it('reverts if subtraction result would be negative', async function () { + const a = new BN('1234'); + const b = new BN('5678'); + + expectStruct(await this.safeMath.$trySub(a, b), [false, '0']); + }); + }); + + describe('mul', function () { + it('multiplies correctly', async function () { + const a = new BN('1234'); + const b = new BN('5678'); + + testCommutativeIterable(this.safeMath.$tryMul, a, b, [true, a.mul(b)]); + }); + + it('multiplies by zero correctly', async function () { + const a = new BN('0'); + const b = new BN('5678'); + + testCommutativeIterable(this.safeMath.$tryMul, a, b, [true, a.mul(b)]); + }); + + it('reverts on multiplication overflow', async function () { + const a = MAX_UINT256; + const b = new BN('2'); + + testCommutativeIterable(this.safeMath.$tryMul, a, b, [false, '0']); + }); + }); + + describe('div', function () { + it('divides correctly', async function () { + const a = new BN('5678'); + const b = new BN('5678'); + + expectStruct(await this.safeMath.$tryDiv(a, b), [true, a.div(b)]); + }); + + it('divides zero correctly', async function () { + const a = new BN('0'); + const b = new BN('5678'); + + expectStruct(await this.safeMath.$tryDiv(a, b), [true, a.div(b)]); + }); + + it('returns complete number result on non-even division', async function () { + const a = new BN('7000'); + const b = new BN('5678'); + + expectStruct(await this.safeMath.$tryDiv(a, b), [true, a.div(b)]); + }); + + it('reverts on division by zero', async function () { + const a = new BN('5678'); + const b = new BN('0'); + + expectStruct(await this.safeMath.$tryDiv(a, b), [false, '0']); + }); + }); + + describe('mod', function () { + describe('modulos correctly', async function () { + it('when the dividend is smaller than the divisor', async function () { + const a = new BN('284'); + const b = new BN('5678'); + + expectStruct(await this.safeMath.$tryMod(a, b), [true, a.mod(b)]); + }); + + it('when the dividend is equal to the divisor', async function () { + const a = new BN('5678'); + const b = new BN('5678'); + + expectStruct(await this.safeMath.$tryMod(a, b), [true, a.mod(b)]); + }); + + it('when the dividend is larger than the divisor', async function () { + const a = new BN('7000'); + const b = new BN('5678'); + + expectStruct(await this.safeMath.$tryMod(a, b), [true, a.mod(b)]); + }); + + it('when the dividend is a multiple of the divisor', async function () { + const a = new BN('17034'); // 17034 == 5678 * 3 + const b = new BN('5678'); + + expectStruct(await this.safeMath.$tryMod(a, b), [true, a.mod(b)]); + }); + }); + + it('reverts with a 0 divisor', async function () { + const a = new BN('5678'); + const b = new BN('0'); + + expectStruct(await this.safeMath.$tryMod(a, b), [false, '0']); + }); + }); + }); + + describe('with default revert message', function () { + describe('add', function () { + it('adds correctly', async function () { + const a = new BN('5678'); + const b = new BN('1234'); + + await testCommutative(this.safeMath.$add, a, b, a.add(b)); + }); + + it('reverts on addition overflow', async function () { + const a = MAX_UINT256; + const b = new BN('1'); + + await testFailsCommutative(this.safeMath.$add, a, b, undefined); + }); + }); + + describe('sub', function () { + it('subtracts correctly', async function () { + const a = new BN('5678'); + const b = new BN('1234'); + + expect(await this.safeMath.$sub(a, b)).to.be.bignumber.equal(a.sub(b)); + }); + + it('reverts if subtraction result would be negative', async function () { + const a = new BN('1234'); + const b = new BN('5678'); + + await expectRevert.unspecified(this.safeMath.$sub(a, b)); + }); + }); + + describe('mul', function () { + it('multiplies correctly', async function () { + const a = new BN('1234'); + const b = new BN('5678'); + + await testCommutative(this.safeMath.$mul, a, b, a.mul(b)); + }); + + it('multiplies by zero correctly', async function () { + const a = new BN('0'); + const b = new BN('5678'); + + await testCommutative(this.safeMath.$mul, a, b, '0'); + }); + + it('reverts on multiplication overflow', async function () { + const a = MAX_UINT256; + const b = new BN('2'); + + await testFailsCommutative(this.safeMath.$mul, a, b, undefined); + }); + }); + + describe('div', function () { + it('divides correctly', async function () { + const a = new BN('5678'); + const b = new BN('5678'); + + expect(await this.safeMath.$div(a, b)).to.be.bignumber.equal(a.div(b)); + }); + + it('divides zero correctly', async function () { + const a = new BN('0'); + const b = new BN('5678'); + + expect(await this.safeMath.$div(a, b)).to.be.bignumber.equal('0'); + }); + + it('returns complete number result on non-even division', async function () { + const a = new BN('7000'); + const b = new BN('5678'); + + expect(await this.safeMath.$div(a, b)).to.be.bignumber.equal('1'); + }); + + it('reverts on division by zero', async function () { + const a = new BN('5678'); + const b = new BN('0'); + + await expectRevert.unspecified(this.safeMath.$div(a, b)); + }); + }); + + describe('mod', function () { + describe('modulos correctly', async function () { + it('when the dividend is smaller than the divisor', async function () { + const a = new BN('284'); + const b = new BN('5678'); + + expect(await this.safeMath.$mod(a, b)).to.be.bignumber.equal(a.mod(b)); + }); + + it('when the dividend is equal to the divisor', async function () { + const a = new BN('5678'); + const b = new BN('5678'); + + expect(await this.safeMath.$mod(a, b)).to.be.bignumber.equal(a.mod(b)); + }); + + it('when the dividend is larger than the divisor', async function () { + const a = new BN('7000'); + const b = new BN('5678'); + + expect(await this.safeMath.$mod(a, b)).to.be.bignumber.equal(a.mod(b)); + }); + + it('when the dividend is a multiple of the divisor', async function () { + const a = new BN('17034'); // 17034 == 5678 * 3 + const b = new BN('5678'); + + expect(await this.safeMath.$mod(a, b)).to.be.bignumber.equal(a.mod(b)); + }); + }); + + it('reverts with a 0 divisor', async function () { + const a = new BN('5678'); + const b = new BN('0'); + + await expectRevert.unspecified(this.safeMath.$mod(a, b)); + }); + }); + }); + + describe('with custom revert message', function () { + describe('sub', function () { + it('subtracts correctly', async function () { + const a = new BN('5678'); + const b = new BN('1234'); + + expect( + await this.safeMath.methods['$sub(uint256,uint256,string)'](a, b, 'MyErrorMessage'), + ).to.be.bignumber.equal(a.sub(b)); + }); + + it('reverts if subtraction result would be negative', async function () { + const a = new BN('1234'); + const b = new BN('5678'); + + await expectRevert( + this.safeMath.methods['$sub(uint256,uint256,string)'](a, b, 'MyErrorMessage'), + 'MyErrorMessage', + ); + }); + }); + + describe('div', function () { + it('divides correctly', async function () { + const a = new BN('5678'); + const b = new BN('5678'); + + expect( + await this.safeMath.methods['$div(uint256,uint256,string)'](a, b, 'MyErrorMessage'), + ).to.be.bignumber.equal(a.div(b)); + }); + + it('divides zero correctly', async function () { + const a = new BN('0'); + const b = new BN('5678'); + + expect( + await this.safeMath.methods['$div(uint256,uint256,string)'](a, b, 'MyErrorMessage'), + ).to.be.bignumber.equal('0'); + }); + + it('returns complete number result on non-even division', async function () { + const a = new BN('7000'); + const b = new BN('5678'); + + expect( + await this.safeMath.methods['$div(uint256,uint256,string)'](a, b, 'MyErrorMessage'), + ).to.be.bignumber.equal('1'); + }); + + it('reverts on division by zero', async function () { + const a = new BN('5678'); + const b = new BN('0'); + + await expectRevert( + this.safeMath.methods['$div(uint256,uint256,string)'](a, b, 'MyErrorMessage'), + 'MyErrorMessage', + ); + }); + }); + + describe('mod', function () { + describe('modulos correctly', async function () { + it('when the dividend is smaller than the divisor', async function () { + const a = new BN('284'); + const b = new BN('5678'); + + expect( + await this.safeMath.methods['$mod(uint256,uint256,string)'](a, b, 'MyErrorMessage'), + ).to.be.bignumber.equal(a.mod(b)); + }); + + it('when the dividend is equal to the divisor', async function () { + const a = new BN('5678'); + const b = new BN('5678'); + + expect( + await this.safeMath.methods['$mod(uint256,uint256,string)'](a, b, 'MyErrorMessage'), + ).to.be.bignumber.equal(a.mod(b)); + }); + + it('when the dividend is larger than the divisor', async function () { + const a = new BN('7000'); + const b = new BN('5678'); + + expect( + await this.safeMath.methods['$mod(uint256,uint256,string)'](a, b, 'MyErrorMessage'), + ).to.be.bignumber.equal(a.mod(b)); + }); + + it('when the dividend is a multiple of the divisor', async function () { + const a = new BN('17034'); // 17034 == 5678 * 3 + const b = new BN('5678'); + + expect( + await this.safeMath.methods['$mod(uint256,uint256,string)'](a, b, 'MyErrorMessage'), + ).to.be.bignumber.equal(a.mod(b)); + }); + }); + + it('reverts with a 0 divisor', async function () { + const a = new BN('5678'); + const b = new BN('0'); + + await expectRevert( + this.safeMath.methods['$mod(uint256,uint256,string)'](a, b, 'MyErrorMessage'), + 'MyErrorMessage', + ); + }); + }); + }); + + describe('memory leakage', function () { + beforeEach(async function () { + this.safeMathMemoryCheck = await SafeMathMemoryCheck.new(); + }); + + it('add', async function () { + expect(await this.safeMathMemoryCheck.$addMemoryCheck()).to.be.bignumber.equal('0'); + }); + + it('sub', async function () { + expect(await this.safeMathMemoryCheck.$subMemoryCheck()).to.be.bignumber.equal('0'); + }); + + it('mul', async function () { + expect(await this.safeMathMemoryCheck.$mulMemoryCheck()).to.be.bignumber.equal('0'); + }); + + it('div', async function () { + expect(await this.safeMathMemoryCheck.$divMemoryCheck()).to.be.bignumber.equal('0'); + }); + + it('mod', async function () { + expect(await this.safeMathMemoryCheck.$modMemoryCheck()).to.be.bignumber.equal('0'); + }); + }); +}); diff --git a/lib/openzeppelin-contracts/test/utils/math/SignedMath.test.js b/lib/openzeppelin-contracts/test/utils/math/SignedMath.test.js new file mode 100644 index 0000000..c014e22 --- /dev/null +++ b/lib/openzeppelin-contracts/test/utils/math/SignedMath.test.js @@ -0,0 +1,95 @@ +const { BN, constants } = require('@openzeppelin/test-helpers'); +const { expect } = require('chai'); +const { MIN_INT256, MAX_INT256 } = constants; + +const SignedMath = artifacts.require('$SignedMath'); + +contract('SignedMath', function () { + const min = new BN('-1234'); + const max = new BN('5678'); + + beforeEach(async function () { + this.math = await SignedMath.new(); + }); + + describe('max', function () { + it('is correctly detected in first argument position', async function () { + expect(await this.math.$max(max, min)).to.be.bignumber.equal(max); + }); + + it('is correctly detected in second argument position', async function () { + expect(await this.math.$max(min, max)).to.be.bignumber.equal(max); + }); + }); + + describe('min', function () { + it('is correctly detected in first argument position', async function () { + expect(await this.math.$min(min, max)).to.be.bignumber.equal(min); + }); + + it('is correctly detected in second argument position', async function () { + expect(await this.math.$min(max, min)).to.be.bignumber.equal(min); + }); + }); + + describe('average', function () { + function bnAverage(a, b) { + return a.add(b).divn(2); + } + + it('is correctly calculated with various input', async function () { + const valuesX = [ + new BN('0'), + new BN('3'), + new BN('-3'), + new BN('4'), + new BN('-4'), + new BN('57417'), + new BN('-57417'), + new BN('42304'), + new BN('-42304'), + MIN_INT256, + MAX_INT256, + ]; + + const valuesY = [ + new BN('0'), + new BN('5'), + new BN('-5'), + new BN('2'), + new BN('-2'), + new BN('57417'), + new BN('-57417'), + new BN('42304'), + new BN('-42304'), + MIN_INT256, + MAX_INT256, + ]; + + for (const x of valuesX) { + for (const y of valuesY) { + expect(await this.math.$average(x, y)).to.be.bignumber.equal( + bnAverage(x, y), + `Bad result for average(${x}, ${y})`, + ); + } + } + }); + }); + + describe('abs', function () { + for (const n of [ + MIN_INT256, + MIN_INT256.addn(1), + new BN('-1'), + new BN('0'), + new BN('1'), + MAX_INT256.subn(1), + MAX_INT256, + ]) { + it(`correctly computes the absolute value of ${n}`, async function () { + expect(await this.math.$abs(n)).to.be.bignumber.equal(n.abs()); + }); + } + }); +}); diff --git a/lib/openzeppelin-contracts/test/utils/math/SignedSafeMath.test.js b/lib/openzeppelin-contracts/test/utils/math/SignedSafeMath.test.js new file mode 100644 index 0000000..3b6530c --- /dev/null +++ b/lib/openzeppelin-contracts/test/utils/math/SignedSafeMath.test.js @@ -0,0 +1,152 @@ +const { BN, constants, expectRevert } = require('@openzeppelin/test-helpers'); +const { MAX_INT256, MIN_INT256 } = constants; + +const { expect } = require('chai'); + +const SignedSafeMath = artifacts.require('$SignedSafeMath'); + +contract('SignedSafeMath', function () { + beforeEach(async function () { + this.safeMath = await SignedSafeMath.new(); + }); + + async function testCommutative(fn, lhs, rhs, expected) { + expect(await fn(lhs, rhs)).to.be.bignumber.equal(expected); + expect(await fn(rhs, lhs)).to.be.bignumber.equal(expected); + } + + async function testFailsCommutative(fn, lhs, rhs) { + await expectRevert.unspecified(fn(lhs, rhs)); + await expectRevert.unspecified(fn(rhs, lhs)); + } + + describe('add', function () { + it('adds correctly if it does not overflow and the result is positive', async function () { + const a = new BN('1234'); + const b = new BN('5678'); + + await testCommutative(this.safeMath.$add, a, b, a.add(b)); + }); + + it('adds correctly if it does not overflow and the result is negative', async function () { + const a = MAX_INT256; + const b = MIN_INT256; + + await testCommutative(this.safeMath.$add, a, b, a.add(b)); + }); + + it('reverts on positive addition overflow', async function () { + const a = MAX_INT256; + const b = new BN('1'); + + await testFailsCommutative(this.safeMath.$add, a, b); + }); + + it('reverts on negative addition overflow', async function () { + const a = MIN_INT256; + const b = new BN('-1'); + + await testFailsCommutative(this.safeMath.$add, a, b); + }); + }); + + describe('sub', function () { + it('subtracts correctly if it does not overflow and the result is positive', async function () { + const a = new BN('5678'); + const b = new BN('1234'); + + const result = await this.safeMath.$sub(a, b); + expect(result).to.be.bignumber.equal(a.sub(b)); + }); + + it('subtracts correctly if it does not overflow and the result is negative', async function () { + const a = new BN('1234'); + const b = new BN('5678'); + + const result = await this.safeMath.$sub(a, b); + expect(result).to.be.bignumber.equal(a.sub(b)); + }); + + it('reverts on positive subtraction overflow', async function () { + const a = MAX_INT256; + const b = new BN('-1'); + + await expectRevert.unspecified(this.safeMath.$sub(a, b)); + }); + + it('reverts on negative subtraction overflow', async function () { + const a = MIN_INT256; + const b = new BN('1'); + + await expectRevert.unspecified(this.safeMath.$sub(a, b)); + }); + }); + + describe('mul', function () { + it('multiplies correctly', async function () { + const a = new BN('5678'); + const b = new BN('-1234'); + + await testCommutative(this.safeMath.$mul, a, b, a.mul(b)); + }); + + it('multiplies by zero correctly', async function () { + const a = new BN('0'); + const b = new BN('5678'); + + await testCommutative(this.safeMath.$mul, a, b, '0'); + }); + + it('reverts on multiplication overflow, positive operands', async function () { + const a = MAX_INT256; + const b = new BN('2'); + + await testFailsCommutative(this.safeMath.$mul, a, b); + }); + + it('reverts when minimum integer is multiplied by -1', async function () { + const a = MIN_INT256; + const b = new BN('-1'); + + await testFailsCommutative(this.safeMath.$mul, a, b); + }); + }); + + describe('div', function () { + it('divides correctly', async function () { + const a = new BN('-5678'); + const b = new BN('5678'); + + const result = await this.safeMath.$div(a, b); + expect(result).to.be.bignumber.equal(a.div(b)); + }); + + it('divides zero correctly', async function () { + const a = new BN('0'); + const b = new BN('5678'); + + expect(await this.safeMath.$div(a, b)).to.be.bignumber.equal('0'); + }); + + it('returns complete number result on non-even division', async function () { + const a = new BN('7000'); + const b = new BN('5678'); + + expect(await this.safeMath.$div(a, b)).to.be.bignumber.equal('1'); + }); + + it('reverts on division by zero', async function () { + const a = new BN('-5678'); + const b = new BN('0'); + + await expectRevert.unspecified(this.safeMath.$div(a, b)); + }); + + it('reverts on overflow, negative second', async function () { + const a = new BN(MIN_INT256); + const b = new BN('-1'); + + await expectRevert.unspecified(this.safeMath.$div(a, b)); + }); + }); +}); diff --git a/lib/openzeppelin-contracts/test/utils/structs/BitMap.test.js b/lib/openzeppelin-contracts/test/utils/structs/BitMap.test.js new file mode 100644 index 0000000..8a1470c --- /dev/null +++ b/lib/openzeppelin-contracts/test/utils/structs/BitMap.test.js @@ -0,0 +1,145 @@ +const { BN } = require('@openzeppelin/test-helpers'); +const { expect } = require('chai'); + +const BitMap = artifacts.require('$BitMaps'); + +contract('BitMap', function () { + const keyA = new BN('7891'); + const keyB = new BN('451'); + const keyC = new BN('9592328'); + + beforeEach(async function () { + this.bitmap = await BitMap.new(); + }); + + it('starts empty', async function () { + expect(await this.bitmap.$get(0, keyA)).to.equal(false); + expect(await this.bitmap.$get(0, keyB)).to.equal(false); + expect(await this.bitmap.$get(0, keyC)).to.equal(false); + }); + + describe('setTo', function () { + it('set a key to true', async function () { + await this.bitmap.$setTo(0, keyA, true); + expect(await this.bitmap.$get(0, keyA)).to.equal(true); + expect(await this.bitmap.$get(0, keyB)).to.equal(false); + expect(await this.bitmap.$get(0, keyC)).to.equal(false); + }); + + it('set a key to false', async function () { + await this.bitmap.$setTo(0, keyA, true); + await this.bitmap.$setTo(0, keyA, false); + expect(await this.bitmap.$get(0, keyA)).to.equal(false); + expect(await this.bitmap.$get(0, keyB)).to.equal(false); + expect(await this.bitmap.$get(0, keyC)).to.equal(false); + }); + + it('set several consecutive keys', async function () { + await this.bitmap.$setTo(0, keyA.addn(0), true); + await this.bitmap.$setTo(0, keyA.addn(1), true); + await this.bitmap.$setTo(0, keyA.addn(2), true); + await this.bitmap.$setTo(0, keyA.addn(3), true); + await this.bitmap.$setTo(0, keyA.addn(4), true); + await this.bitmap.$setTo(0, keyA.addn(2), false); + await this.bitmap.$setTo(0, keyA.addn(4), false); + expect(await this.bitmap.$get(0, keyA.addn(0))).to.equal(true); + expect(await this.bitmap.$get(0, keyA.addn(1))).to.equal(true); + expect(await this.bitmap.$get(0, keyA.addn(2))).to.equal(false); + expect(await this.bitmap.$get(0, keyA.addn(3))).to.equal(true); + expect(await this.bitmap.$get(0, keyA.addn(4))).to.equal(false); + }); + }); + + describe('set', function () { + it('adds a key', async function () { + await this.bitmap.$set(0, keyA); + expect(await this.bitmap.$get(0, keyA)).to.equal(true); + expect(await this.bitmap.$get(0, keyB)).to.equal(false); + expect(await this.bitmap.$get(0, keyC)).to.equal(false); + }); + + it('adds several keys', async function () { + await this.bitmap.$set(0, keyA); + await this.bitmap.$set(0, keyB); + expect(await this.bitmap.$get(0, keyA)).to.equal(true); + expect(await this.bitmap.$get(0, keyB)).to.equal(true); + expect(await this.bitmap.$get(0, keyC)).to.equal(false); + }); + + it('adds several consecutive keys', async function () { + await this.bitmap.$set(0, keyA.addn(0)); + await this.bitmap.$set(0, keyA.addn(1)); + await this.bitmap.$set(0, keyA.addn(3)); + expect(await this.bitmap.$get(0, keyA.addn(0))).to.equal(true); + expect(await this.bitmap.$get(0, keyA.addn(1))).to.equal(true); + expect(await this.bitmap.$get(0, keyA.addn(2))).to.equal(false); + expect(await this.bitmap.$get(0, keyA.addn(3))).to.equal(true); + expect(await this.bitmap.$get(0, keyA.addn(4))).to.equal(false); + }); + }); + + describe('unset', function () { + it('removes added keys', async function () { + await this.bitmap.$set(0, keyA); + await this.bitmap.$set(0, keyB); + await this.bitmap.$unset(0, keyA); + expect(await this.bitmap.$get(0, keyA)).to.equal(false); + expect(await this.bitmap.$get(0, keyB)).to.equal(true); + expect(await this.bitmap.$get(0, keyC)).to.equal(false); + }); + + it('removes consecutive added keys', async function () { + await this.bitmap.$set(0, keyA.addn(0)); + await this.bitmap.$set(0, keyA.addn(1)); + await this.bitmap.$set(0, keyA.addn(3)); + await this.bitmap.$unset(0, keyA.addn(1)); + expect(await this.bitmap.$get(0, keyA.addn(0))).to.equal(true); + expect(await this.bitmap.$get(0, keyA.addn(1))).to.equal(false); + expect(await this.bitmap.$get(0, keyA.addn(2))).to.equal(false); + expect(await this.bitmap.$get(0, keyA.addn(3))).to.equal(true); + expect(await this.bitmap.$get(0, keyA.addn(4))).to.equal(false); + }); + + it('adds and removes multiple keys', async function () { + // [] + + await this.bitmap.$set(0, keyA); + await this.bitmap.$set(0, keyC); + + // [A, C] + + await this.bitmap.$unset(0, keyA); + await this.bitmap.$unset(0, keyB); + + // [C] + + await this.bitmap.$set(0, keyB); + + // [C, B] + + await this.bitmap.$set(0, keyA); + await this.bitmap.$unset(0, keyC); + + // [A, B] + + await this.bitmap.$set(0, keyA); + await this.bitmap.$set(0, keyB); + + // [A, B] + + await this.bitmap.$set(0, keyC); + await this.bitmap.$unset(0, keyA); + + // [B, C] + + await this.bitmap.$set(0, keyA); + await this.bitmap.$unset(0, keyB); + + // [A, C] + + expect(await this.bitmap.$get(0, keyA)).to.equal(true); + expect(await this.bitmap.$get(0, keyB)).to.equal(false); + expect(await this.bitmap.$get(0, keyC)).to.equal(true); + }); + }); +}); diff --git a/lib/openzeppelin-contracts/test/utils/structs/DoubleEndedQueue.test.js b/lib/openzeppelin-contracts/test/utils/structs/DoubleEndedQueue.test.js new file mode 100644 index 0000000..2fbb8dc --- /dev/null +++ b/lib/openzeppelin-contracts/test/utils/structs/DoubleEndedQueue.test.js @@ -0,0 +1,99 @@ +const { expectEvent } = require('@openzeppelin/test-helpers'); +const { expectRevertCustomError } = require('../../helpers/customError'); + +const DoubleEndedQueue = artifacts.require('$DoubleEndedQueue'); + +/** Rebuild the content of the deque as a JS array. */ +const getContent = deque => + deque.$length(0).then(bn => + Promise.all( + Array(bn.toNumber()) + .fill() + .map((_, i) => deque.$at(0, i)), + ), + ); + +contract('DoubleEndedQueue', function () { + const bytesA = '0xdeadbeef'.padEnd(66, '0'); + const bytesB = '0x0123456789'.padEnd(66, '0'); + const bytesC = '0x42424242'.padEnd(66, '0'); + const bytesD = '0x171717'.padEnd(66, '0'); + + beforeEach(async function () { + this.deque = await DoubleEndedQueue.new(); + }); + + describe('when empty', function () { + it('getters', async function () { + expect(await this.deque.$empty(0)).to.be.equal(true); + expect(await getContent(this.deque)).to.have.ordered.members([]); + }); + + it('reverts on accesses', async function () { + await expectRevertCustomError(this.deque.$popBack(0), 'Empty()'); + await expectRevertCustomError(this.deque.$popFront(0), 'Empty()'); + await expectRevertCustomError(this.deque.$back(0), 'Empty()'); + await expectRevertCustomError(this.deque.$front(0), 'Empty()'); + }); + }); + + describe('when not empty', function () { + beforeEach(async function () { + await this.deque.$pushBack(0, bytesB); + await this.deque.$pushFront(0, bytesA); + await this.deque.$pushBack(0, bytesC); + this.content = [bytesA, bytesB, bytesC]; + }); + + it('getters', async function () { + expect(await this.deque.$empty(0)).to.be.equal(false); + expect(await this.deque.$length(0)).to.be.bignumber.equal(this.content.length.toString()); + expect(await this.deque.$front(0)).to.be.equal(this.content[0]); + expect(await this.deque.$back(0)).to.be.equal(this.content[this.content.length - 1]); + expect(await getContent(this.deque)).to.have.ordered.members(this.content); + }); + + it('out of bounds access', async function () { + await expectRevertCustomError(this.deque.$at(0, this.content.length), 'OutOfBounds()'); + }); + + describe('push', function () { + it('front', async function () { + await this.deque.$pushFront(0, bytesD); + this.content.unshift(bytesD); // add element at the beginning + + expect(await getContent(this.deque)).to.have.ordered.members(this.content); + }); + + it('back', async function () { + await this.deque.$pushBack(0, bytesD); + this.content.push(bytesD); // add element at the end + + expect(await getContent(this.deque)).to.have.ordered.members(this.content); + }); + }); + + describe('pop', function () { + it('front', async function () { + const value = this.content.shift(); // remove first element + expectEvent(await this.deque.$popFront(0), 'return$popFront', { value }); + + expect(await getContent(this.deque)).to.have.ordered.members(this.content); + }); + + it('back', async function () { + const value = this.content.pop(); // remove last element + expectEvent(await this.deque.$popBack(0), 'return$popBack', { value }); + + expect(await getContent(this.deque)).to.have.ordered.members(this.content); + }); + }); + + it('clear', async function () { + await this.deque.$clear(0); + + expect(await this.deque.$empty(0)).to.be.equal(true); + expect(await getContent(this.deque)).to.have.ordered.members([]); + }); + }); +}); diff --git a/lib/openzeppelin-contracts/test/utils/structs/EnumerableMap.behavior.js b/lib/openzeppelin-contracts/test/utils/structs/EnumerableMap.behavior.js new file mode 100644 index 0000000..b4b5ee3 --- /dev/null +++ b/lib/openzeppelin-contracts/test/utils/structs/EnumerableMap.behavior.js @@ -0,0 +1,185 @@ +const { expectEvent, expectRevert } = require('@openzeppelin/test-helpers'); +const { expect } = require('chai'); + +const zip = require('lodash.zip'); + +function shouldBehaveLikeMap(keys, values, zeroValue, methods, events) { + const [keyA, keyB, keyC] = keys; + const [valueA, valueB, valueC] = values; + + async function expectMembersMatch(map, keys, values) { + expect(keys.length).to.equal(values.length); + + await Promise.all(keys.map(async key => expect(await methods.contains(map, key)).to.equal(true))); + + expect(await methods.length(map)).to.bignumber.equal(keys.length.toString()); + + expect((await Promise.all(keys.map(key => methods.get(map, key)))).map(k => k.toString())).to.have.same.members( + values.map(value => value.toString()), + ); + + // To compare key-value pairs, we zip keys and values, and convert BNs to + // strings to workaround Chai limitations when dealing with nested arrays + expect( + await Promise.all( + [...Array(keys.length).keys()].map(async index => { + const entry = await methods.at(map, index); + return [entry[0].toString(), entry[1].toString()]; + }), + ), + ).to.have.same.deep.members( + zip( + keys.map(k => k.toString()), + values.map(v => v.toString()), + ), + ); + + // This also checks that both arrays have the same length + expect((await methods.keys(map)).map(k => k.toString())).to.have.same.members(keys.map(key => key.toString())); + } + + it('starts empty', async function () { + expect(await methods.contains(this.map, keyA)).to.equal(false); + + await expectMembersMatch(this.map, [], []); + }); + + describe('set', function () { + it('adds a key', async function () { + const receipt = await methods.set(this.map, keyA, valueA); + expectEvent(receipt, events.setReturn, { ret0: true }); + + await expectMembersMatch(this.map, [keyA], [valueA]); + }); + + it('adds several keys', async function () { + await methods.set(this.map, keyA, valueA); + await methods.set(this.map, keyB, valueB); + + await expectMembersMatch(this.map, [keyA, keyB], [valueA, valueB]); + expect(await methods.contains(this.map, keyC)).to.equal(false); + }); + + it('returns false when adding keys already in the set', async function () { + await methods.set(this.map, keyA, valueA); + + const receipt = await methods.set(this.map, keyA, valueA); + expectEvent(receipt, events.setReturn, { ret0: false }); + + await expectMembersMatch(this.map, [keyA], [valueA]); + }); + + it('updates values for keys already in the set', async function () { + await methods.set(this.map, keyA, valueA); + await methods.set(this.map, keyA, valueB); + + await expectMembersMatch(this.map, [keyA], [valueB]); + }); + }); + + describe('remove', function () { + it('removes added keys', async function () { + await methods.set(this.map, keyA, valueA); + + const receipt = await methods.remove(this.map, keyA); + expectEvent(receipt, events.removeReturn, { ret0: true }); + + expect(await methods.contains(this.map, keyA)).to.equal(false); + await expectMembersMatch(this.map, [], []); + }); + + it('returns false when removing keys not in the set', async function () { + const receipt = await methods.remove(this.map, keyA); + expectEvent(receipt, events.removeReturn, { ret0: false }); + + expect(await methods.contains(this.map, keyA)).to.equal(false); + }); + + it('adds and removes multiple keys', async function () { + // [] + + await methods.set(this.map, keyA, valueA); + await methods.set(this.map, keyC, valueC); + + // [A, C] + + await methods.remove(this.map, keyA); + await methods.remove(this.map, keyB); + + // [C] + + await methods.set(this.map, keyB, valueB); + + // [C, B] + + await methods.set(this.map, keyA, valueA); + await methods.remove(this.map, keyC); + + // [A, B] + + await methods.set(this.map, keyA, valueA); + await methods.set(this.map, keyB, valueB); + + // [A, B] + + await methods.set(this.map, keyC, valueC); + await methods.remove(this.map, keyA); + + // [B, C] + + await methods.set(this.map, keyA, valueA); + await methods.remove(this.map, keyB); + + // [A, C] + + await expectMembersMatch(this.map, [keyA, keyC], [valueA, valueC]); + + expect(await methods.contains(this.map, keyA)).to.equal(true); + expect(await methods.contains(this.map, keyB)).to.equal(false); + expect(await methods.contains(this.map, keyC)).to.equal(true); + }); + }); + + describe('read', function () { + beforeEach(async function () { + await methods.set(this.map, keyA, valueA); + }); + + describe('get', function () { + it('existing value', async function () { + expect(await methods.get(this.map, keyA).then(r => r.toString())).to.be.equal(valueA.toString()); + }); + it('missing value', async function () { + await expectRevert(methods.get(this.map, keyB), 'EnumerableMap: nonexistent key'); + }); + }); + + describe('get with message', function () { + it('existing value', async function () { + expect(await methods.getWithMessage(this.map, keyA, 'custom error string').then(r => r.toString())).to.be.equal( + valueA.toString(), + ); + }); + it('missing value', async function () { + await expectRevert(methods.getWithMessage(this.map, keyB, 'custom error string'), 'custom error string'); + }); + }); + + describe('tryGet', function () { + it('existing value', async function () { + const result = await methods.tryGet(this.map, keyA); + expect(result['0']).to.be.equal(true); + expect(result['1'].toString()).to.be.equal(valueA.toString()); + }); + it('missing value', async function () { + const result = await methods.tryGet(this.map, keyB); + expect(result['0']).to.be.equal(false); + expect(result['1'].toString()).to.be.equal(zeroValue.toString()); + }); + }); + }); +} + +module.exports = { + shouldBehaveLikeMap, +}; diff --git a/lib/openzeppelin-contracts/test/utils/structs/EnumerableMap.test.js b/lib/openzeppelin-contracts/test/utils/structs/EnumerableMap.test.js new file mode 100644 index 0000000..548e737 --- /dev/null +++ b/lib/openzeppelin-contracts/test/utils/structs/EnumerableMap.test.js @@ -0,0 +1,151 @@ +const { BN, constants } = require('@openzeppelin/test-helpers'); +const { mapValues } = require('../../helpers/map-values'); + +const EnumerableMap = artifacts.require('$EnumerableMap'); + +const { shouldBehaveLikeMap } = require('./EnumerableMap.behavior'); + +const getMethods = ms => { + return mapValues( + ms, + m => + (self, ...args) => + self.methods[m](0, ...args), + ); +}; + +contract('EnumerableMap', function (accounts) { + const [accountA, accountB, accountC] = accounts; + + const keyA = new BN('7891'); + const keyB = new BN('451'); + const keyC = new BN('9592328'); + + const bytesA = '0xdeadbeef'.padEnd(66, '0'); + const bytesB = '0x0123456789'.padEnd(66, '0'); + const bytesC = '0x42424242'.padEnd(66, '0'); + + beforeEach(async function () { + this.map = await EnumerableMap.new(); + }); + + // AddressToUintMap + describe('AddressToUintMap', function () { + shouldBehaveLikeMap( + [accountA, accountB, accountC], + [keyA, keyB, keyC], + new BN('0'), + getMethods({ + set: '$set(uint256,address,uint256)', + get: '$get(uint256,address)', + getWithMessage: '$get(uint256,address,string)', + tryGet: '$tryGet(uint256,address)', + remove: '$remove(uint256,address)', + length: '$length_EnumerableMap_AddressToUintMap(uint256)', + at: '$at_EnumerableMap_AddressToUintMap(uint256,uint256)', + contains: '$contains(uint256,address)', + keys: '$keys_EnumerableMap_AddressToUintMap(uint256)', + }), + { + setReturn: 'return$set_EnumerableMap_AddressToUintMap_address_uint256', + removeReturn: 'return$remove_EnumerableMap_AddressToUintMap_address', + }, + ); + }); + + // UintToAddressMap + describe('UintToAddressMap', function () { + shouldBehaveLikeMap( + [keyA, keyB, keyC], + [accountA, accountB, accountC], + constants.ZERO_ADDRESS, + getMethods({ + set: '$set(uint256,uint256,address)', + get: '$get_EnumerableMap_UintToAddressMap(uint256,uint256)', + getWithMessage: '$get_EnumerableMap_UintToAddressMap(uint256,uint256,string)', + tryGet: '$tryGet_EnumerableMap_UintToAddressMap(uint256,uint256)', + remove: '$remove_EnumerableMap_UintToAddressMap(uint256,uint256)', + length: '$length_EnumerableMap_UintToAddressMap(uint256)', + at: '$at_EnumerableMap_UintToAddressMap(uint256,uint256)', + contains: '$contains_EnumerableMap_UintToAddressMap(uint256,uint256)', + keys: '$keys_EnumerableMap_UintToAddressMap(uint256)', + }), + { + setReturn: 'return$set_EnumerableMap_UintToAddressMap_uint256_address', + removeReturn: 'return$remove_EnumerableMap_UintToAddressMap_uint256', + }, + ); + }); + + // Bytes32ToBytes32Map + describe('Bytes32ToBytes32Map', function () { + shouldBehaveLikeMap( + [keyA, keyB, keyC].map(k => '0x' + k.toString(16).padEnd(64, '0')), + [bytesA, bytesB, bytesC], + constants.ZERO_BYTES32, + getMethods({ + set: '$set(uint256,bytes32,bytes32)', + get: '$get_EnumerableMap_Bytes32ToBytes32Map(uint256,bytes32)', + getWithMessage: '$get_EnumerableMap_Bytes32ToBytes32Map(uint256,bytes32,string)', + tryGet: '$tryGet_EnumerableMap_Bytes32ToBytes32Map(uint256,bytes32)', + remove: '$remove_EnumerableMap_Bytes32ToBytes32Map(uint256,bytes32)', + length: '$length_EnumerableMap_Bytes32ToBytes32Map(uint256)', + at: '$at_EnumerableMap_Bytes32ToBytes32Map(uint256,uint256)', + contains: '$contains_EnumerableMap_Bytes32ToBytes32Map(uint256,bytes32)', + keys: '$keys_EnumerableMap_Bytes32ToBytes32Map(uint256)', + }), + { + setReturn: 'return$set_EnumerableMap_Bytes32ToBytes32Map_bytes32_bytes32', + removeReturn: 'return$remove_EnumerableMap_Bytes32ToBytes32Map_bytes32', + }, + ); + }); + + // UintToUintMap + describe('UintToUintMap', function () { + shouldBehaveLikeMap( + [keyA, keyB, keyC], + [keyA, keyB, keyC].map(k => k.add(new BN('1332'))), + new BN('0'), + getMethods({ + set: '$set(uint256,uint256,uint256)', + get: '$get_EnumerableMap_UintToUintMap(uint256,uint256)', + getWithMessage: '$get_EnumerableMap_UintToUintMap(uint256,uint256,string)', + tryGet: '$tryGet_EnumerableMap_UintToUintMap(uint256,uint256)', + remove: '$remove_EnumerableMap_UintToUintMap(uint256,uint256)', + length: '$length_EnumerableMap_UintToUintMap(uint256)', + at: '$at_EnumerableMap_UintToUintMap(uint256,uint256)', + contains: '$contains_EnumerableMap_UintToUintMap(uint256,uint256)', + keys: '$keys_EnumerableMap_UintToUintMap(uint256)', + }), + { + setReturn: 'return$set_EnumerableMap_UintToUintMap_uint256_uint256', + removeReturn: 'return$remove_EnumerableMap_UintToUintMap_uint256', + }, + ); + }); + + // Bytes32ToUintMap + describe('Bytes32ToUintMap', function () { + shouldBehaveLikeMap( + [bytesA, bytesB, bytesC], + [keyA, keyB, keyC], + new BN('0'), + getMethods({ + set: '$set(uint256,bytes32,uint256)', + get: '$get_EnumerableMap_Bytes32ToUintMap(uint256,bytes32)', + getWithMessage: '$get_EnumerableMap_Bytes32ToUintMap(uint256,bytes32,string)', + tryGet: '$tryGet_EnumerableMap_Bytes32ToUintMap(uint256,bytes32)', + remove: '$remove_EnumerableMap_Bytes32ToUintMap(uint256,bytes32)', + length: '$length_EnumerableMap_Bytes32ToUintMap(uint256)', + at: '$at_EnumerableMap_Bytes32ToUintMap(uint256,uint256)', + contains: '$contains_EnumerableMap_Bytes32ToUintMap(uint256,bytes32)', + keys: '$keys_EnumerableMap_Bytes32ToUintMap(uint256)', + }), + { + setReturn: 'return$set_EnumerableMap_Bytes32ToUintMap_bytes32_uint256', + removeReturn: 'return$remove_EnumerableMap_Bytes32ToUintMap_bytes32', + }, + ); + }); +}); diff --git a/lib/openzeppelin-contracts/test/utils/structs/EnumerableSet.behavior.js b/lib/openzeppelin-contracts/test/utils/structs/EnumerableSet.behavior.js new file mode 100644 index 0000000..f80eb81 --- /dev/null +++ b/lib/openzeppelin-contracts/test/utils/structs/EnumerableSet.behavior.js @@ -0,0 +1,129 @@ +const { expectEvent, expectRevert } = require('@openzeppelin/test-helpers'); +const { expect } = require('chai'); + +function shouldBehaveLikeSet(values, methods, events) { + const [valueA, valueB, valueC] = values; + + async function expectMembersMatch(set, values) { + const contains = await Promise.all(values.map(value => methods.contains(set, value))); + expect(contains.every(Boolean)).to.be.equal(true); + + const length = await methods.length(set); + expect(length).to.bignumber.equal(values.length.toString()); + + // To compare values we convert to strings to workaround Chai + // limitations when dealing with nested arrays (required for BNs) + const indexedValues = await Promise.all( + Array(values.length) + .fill() + .map((_, index) => methods.at(set, index)), + ); + expect(indexedValues.map(v => v.toString())).to.have.same.members(values.map(v => v.toString())); + + const returnedValues = await methods.values(set); + expect(returnedValues.map(v => v.toString())).to.have.same.members(values.map(v => v.toString())); + } + + it('starts empty', async function () { + expect(await methods.contains(this.set, valueA)).to.equal(false); + + await expectMembersMatch(this.set, []); + }); + + describe('add', function () { + it('adds a value', async function () { + const receipt = await methods.add(this.set, valueA); + expectEvent(receipt, events.addReturn, { ret0: true }); + + await expectMembersMatch(this.set, [valueA]); + }); + + it('adds several values', async function () { + await methods.add(this.set, valueA); + await methods.add(this.set, valueB); + + await expectMembersMatch(this.set, [valueA, valueB]); + expect(await methods.contains(this.set, valueC)).to.equal(false); + }); + + it('returns false when adding values already in the set', async function () { + await methods.add(this.set, valueA); + + const receipt = await methods.add(this.set, valueA); + expectEvent(receipt, events.addReturn, { ret0: false }); + + await expectMembersMatch(this.set, [valueA]); + }); + }); + + describe('at', function () { + it('reverts when retrieving non-existent elements', async function () { + await expectRevert.unspecified(methods.at(this.set, 0)); + }); + }); + + describe('remove', function () { + it('removes added values', async function () { + await methods.add(this.set, valueA); + + const receipt = await methods.remove(this.set, valueA); + expectEvent(receipt, events.removeReturn, { ret0: true }); + + expect(await methods.contains(this.set, valueA)).to.equal(false); + await expectMembersMatch(this.set, []); + }); + + it('returns false when removing values not in the set', async function () { + const receipt = await methods.remove(this.set, valueA); + expectEvent(receipt, events.removeReturn, { ret0: false }); + + expect(await methods.contains(this.set, valueA)).to.equal(false); + }); + + it('adds and removes multiple values', async function () { + // [] + + await methods.add(this.set, valueA); + await methods.add(this.set, valueC); + + // [A, C] + + await methods.remove(this.set, valueA); + await methods.remove(this.set, valueB); + + // [C] + + await methods.add(this.set, valueB); + + // [C, B] + + await methods.add(this.set, valueA); + await methods.remove(this.set, valueC); + + // [A, B] + + await methods.add(this.set, valueA); + await methods.add(this.set, valueB); + + // [A, B] + + await methods.add(this.set, valueC); + await methods.remove(this.set, valueA); + + // [B, C] + + await methods.add(this.set, valueA); + await methods.remove(this.set, valueB); + + // [A, C] + + await expectMembersMatch(this.set, [valueA, valueC]); + + expect(await methods.contains(this.set, valueB)).to.equal(false); + }); + }); +} + +module.exports = { + shouldBehaveLikeSet, +}; diff --git a/lib/openzeppelin-contracts/test/utils/structs/EnumerableSet.test.js b/lib/openzeppelin-contracts/test/utils/structs/EnumerableSet.test.js new file mode 100644 index 0000000..862cb6d --- /dev/null +++ b/lib/openzeppelin-contracts/test/utils/structs/EnumerableSet.test.js @@ -0,0 +1,76 @@ +const EnumerableSet = artifacts.require('$EnumerableSet'); +const { mapValues } = require('../../helpers/map-values'); + +const { shouldBehaveLikeSet } = require('./EnumerableSet.behavior'); + +const getMethods = ms => { + return mapValues( + ms, + m => + (self, ...args) => + self.methods[m](0, ...args), + ); +}; + +contract('EnumerableSet', function (accounts) { + beforeEach(async function () { + this.set = await EnumerableSet.new(); + }); + + // Bytes32Set + describe('EnumerableBytes32Set', function () { + shouldBehaveLikeSet( + ['0xdeadbeef', '0x0123456789', '0x42424242'].map(e => e.padEnd(66, '0')), + getMethods({ + add: '$add(uint256,bytes32)', + remove: '$remove(uint256,bytes32)', + contains: '$contains(uint256,bytes32)', + length: '$length_EnumerableSet_Bytes32Set(uint256)', + at: '$at_EnumerableSet_Bytes32Set(uint256,uint256)', + values: '$values_EnumerableSet_Bytes32Set(uint256)', + }), + { + addReturn: 'return$add_EnumerableSet_Bytes32Set_bytes32', + removeReturn: 'return$remove_EnumerableSet_Bytes32Set_bytes32', + }, + ); + }); + + // AddressSet + describe('EnumerableAddressSet', function () { + shouldBehaveLikeSet( + accounts, + getMethods({ + add: '$add(uint256,address)', + remove: '$remove(uint256,address)', + contains: '$contains(uint256,address)', + length: '$length_EnumerableSet_AddressSet(uint256)', + at: '$at_EnumerableSet_AddressSet(uint256,uint256)', + values: '$values_EnumerableSet_AddressSet(uint256)', + }), + { + addReturn: 'return$add_EnumerableSet_AddressSet_address', + removeReturn: 'return$remove_EnumerableSet_AddressSet_address', + }, + ); + }); + + // UintSet + describe('EnumerableUintSet', function () { + shouldBehaveLikeSet( + [1234, 5678, 9101112].map(e => web3.utils.toBN(e)), + getMethods({ + add: '$add(uint256,uint256)', + remove: '$remove(uint256,uint256)', + contains: '$contains(uint256,uint256)', + length: '$length_EnumerableSet_UintSet(uint256)', + at: '$at_EnumerableSet_UintSet(uint256,uint256)', + values: '$values_EnumerableSet_UintSet(uint256)', + }), + { + addReturn: 'return$add_EnumerableSet_UintSet_uint256', + removeReturn: 'return$remove_EnumerableSet_UintSet_uint256', + }, + ); + }); +}); diff --git a/manage.py b/manage.py new file mode 100755 index 0000000..fa0477c --- /dev/null +++ b/manage.py @@ -0,0 +1,60 @@ +#!/usr/bin/env python3 + +import json +from os import getenv, path +from secrets import token_urlsafe +from datetime import datetime +from hashlib import sha256 +from random import choices + +from web3 import Web3 +from dotenv import load_dotenv + + +load_dotenv() + + +def get_eth_contract(_ca, _rp): + compiled_contract_path = path.abspath(_rp) + with open(compiled_contract_path) as file: + contract_json = json.load(file) + contract_abi = contract_json['abi'] + return w3.eth.contract(address=w3.toChecksumAddress(_ca), abi=contract_abi) + +def sendit(w3, t, nonce): + t['from'] = w3.eth.defaultAccount + t['nonce'] = nonce + s = w3.eth.account.sign_transaction(t, private_key=getenv(f'{net}_KEY')) + return w3.eth.send_raw_transaction(s.rawTransaction) + +if __name__ == '__main__': + net = getenv('NET').upper() + if not getenv(f'{net}_CONTRACT') or not getenv(f'{net}_KEY') or not getenv(f'{net}_RPC'): + print('invalid env vars set') + exit() + + # web3 setup + WEB3_PROVIDER_URI = getenv(f'{net}_RPC') + w3 = Web3(Web3.HTTPProvider(WEB3_PROVIDER_URI)) + w3.eth.defaultAccount = w3.eth.account.from_key(getenv(f'{net}_KEY')).address + contract = get_eth_contract(getenv(f'{net}_CONTRACT'), './out/Lottery.sol/Lottery.json') + nonce = w3.eth.get_transaction_count(w3.eth.defaultAccount) + + # Calculate gas + if getenv('HASH'): + tokens = choices(range(0, 5000), k=10) + phrase = f'{datetime.utcnow()},{token_urlsafe(12).replace(",", "")},{" ".join([str(i) for i in tokens])}' + hashed = sha256(phrase.encode('utf-8')).hexdigest() + r = sendit(w3, contract.functions.setWinningPhrase(hashed).build_transaction(), nonce) + print(f'sent tx {r.hex()} with nonce {nonce} to update the winning phrase') + with open('output.txt', 'w') as f: + f.write(f'{phrase}\n{hashed}') + + if getenv('TOKENS'): + msg = '' + with open('output.txt', 'r') as f: + msg = f.readlines()[0] + _tokens = msg.split(',')[2] + tokens = [int(i) for i in _tokens.split()] + r = sendit(w3, contract.functions.setWinningTokens(tokens).build_transaction(), nonce) + print(f'sent tx {r.hex()} with nonce {nonce} to update the winning tokens') diff --git a/real.svg b/real.svg new file mode 100644 index 0000000..799980f --- /dev/null +++ b/real.svg @@ -0,0 +1 @@ +AFOUAGMI#0 \ No newline at end of file diff --git a/remappings.txt b/remappings.txt new file mode 100644 index 0000000..8f6b8e9 --- /dev/null +++ b/remappings.txt @@ -0,0 +1,3 @@ +ds-test/=lib/forge-std/lib/ds-test/src/ +forge-std/=lib/forge-std/src/ +erc721a/=lib/erc721a/contracts/ diff --git a/sample.svg b/sample.svg new file mode 100644 index 0000000..196311e --- /dev/null +++ b/sample.svg @@ -0,0 +1,4 @@ + +AFOUAGMI +#1 + diff --git a/script/Deploy.s.sol b/script/Deploy.s.sol new file mode 100644 index 0000000..34d10e2 --- /dev/null +++ b/script/Deploy.s.sol @@ -0,0 +1,14 @@ +// SPDX-License-Identifier: UNLICENSED +pragma solidity ^0.8.13; + +import "forge-std/Script.sol"; +import {Lottery} from "../src/Lottery.sol"; + +contract Deploy is Script { + function setUp() public {} + + function run() public { + vm.startBroadcast(); + new Lottery(); + } +} diff --git a/src/Lottery.sol b/src/Lottery.sol new file mode 100644 index 0000000..92d21e8 --- /dev/null +++ b/src/Lottery.sol @@ -0,0 +1,135 @@ +// SPDX-License-Identifier: UNLICENSED +pragma solidity ^0.8.13; + +import {ERC721A} from 'erc721a/ERC721A.sol'; +import {Base64} from "openzeppelin-contracts/utils/Base64.sol"; +import {Strings} from "openzeppelin-contracts/utils/Strings.sol"; + +contract Lottery is ERC721A { + + mapping(uint256 => bool) public winningTokens; + mapping(uint256 => bool) public tokenClaimed; + mapping(uint256 => uint256) public winningTokensIndex; + uint256 public max = 5000; + uint256 public price = 0.01 ether; + uint256 public winners = 10; + uint256 public winningAmount = 1 ether; + bool public minting; + bool public phraseSet; + bool public tokensSet; + address public owner; + string public winningPhraseHash; + + constructor() ERC721A("A Few of Us", "AFOUAGMI") { + owner = msg.sender; + } + + /* + * Modifiers + */ + + modifier onlyOwner { + require(msg.sender == owner, "not owner"); + _; + } + + /* + * Admin + */ + + function setWinningTokens(uint256[] calldata _tokenIds) external onlyOwner { + require(phraseSet == true, "phrase not set"); + require(tokensSet == false, "tokens already set"); + require(_tokenIds.length == winners, "not enough winners"); + for (uint256 i; i < _tokenIds.length; i++) { + uint256 tokenId = _tokenIds[i]; + require(tokenId < totalSupply(), "not within supply"); + winningTokens[tokenId] = true; + winningTokensIndex[i] = tokenId; + } + tokensSet = true; + } + + function setWinningPhrase(string memory _phrase) external onlyOwner { + require(phraseSet == false, "phrase already set"); + winningPhraseHash = _phrase; + phraseSet = true; + } + + function withdraw(uint256 _amount) external onlyOwner { + (bool success, ) = payable(msg.sender).call{value: _amount}(""); + require(success, "failed to withdraw"); + } + + /* + * Tokens + */ + + function mint(uint256 _amount) external payable { + require(phraseSet == true, "phrase not set"); + require(totalSupply() + _amount <= max, "not enough supply"); + require(msg.value >= _amount * price, "not enough ether"); + _safeMint(msg.sender, _amount); + } + + function getWinningTokens() external view returns (uint256[] memory) { + uint256[] memory tokenIds = new uint256[](winners); + for (uint256 i; i < winners; i++) { + tokenIds[i] = winningTokensIndex[i]; + } + return tokenIds; + } + + function tokenURI(uint256 tokenId) public view override returns (string memory) { + string memory isWinner = "false"; + if (winningTokens[tokenId]) { + isWinner = "true"; + } + string memory json = Base64.encode( + bytes( + string( + abi.encodePacked( + '{"name": "AFOUAGMI #', Strings.toString(tokenId), '"', + ', "description": "A Few Of Us Are Gonna Make It."', + ', "attributes": [{"trait_type": "winner", "value": "', + isWinner, + '"}]', + ', "image_data": "data:image/svg+xml;base64,', + Base64.encode( + bytes( + string( + abi.encodePacked( + '', + '', + '' + ) + ) + ) + ), + '"}' + ) + ) + ) + ); + return string( + abi.encodePacked( + 'data:application/json;base64,', + json + ) + ); + } + + /* + * Winners + */ + + function claimToken(uint256 _tokenId) external { + require(msg.sender == ownerOf(_tokenId), "not owner of token"); + require(winningTokens[_tokenId] == true, "not a winning token"); + require(tokenClaimed[_tokenId] == false, "token already claimed"); + tokenClaimed[_tokenId] = true; + (bool success, ) = payable(msg.sender).call{value: winningAmount}(""); + require(success, "failed to withdraw"); + } + +} diff --git a/test/Lottery.t.sol b/test/Lottery.t.sol new file mode 100644 index 0000000..d0621be --- /dev/null +++ b/test/Lottery.t.sol @@ -0,0 +1,93 @@ +// SPDX-License-Identifier: UNLICENSED +pragma solidity ^0.8.13; + +import "forge-std/Test.sol"; +import "../src/Lottery.sol"; + +contract LotteryTest is Test { + Lottery public lotto; + uint256 mp; + + function setUp() public { + lotto = new Lottery(); + mp = lotto.price(); + } + + // 2023-01-16 winning tokens are 1,2,3,4,5,6,7,8,9,10 + + function testOnlyOwner() public { + startHoax(lotto.owner()); + lotto.setWinningPhrase("24fad66ea96693aaa369548305e1df9e769b32840d454493dbf14dae53ac2d39"); + vm.stopPrank(); + hoax(address(1)); + lotto.mint{value: mp * 20}(20); + startHoax(lotto.owner()); + uint256[] memory winners = new uint256[](10); + for (uint256 i; i < 10; i++) { + winners[i] = i; + } + lotto.setWinningTokens(winners); + assertEq(lotto.winningTokens(0), true); + assertEq(lotto.winningTokens(9), true); + assertEq(lotto.winningTokens(10), false); + uint256 preBalC = address(lotto).balance; + uint256 preBalU = address(lotto.owner()).balance; + lotto.withdraw(address(lotto).balance); + uint256 postBalC = address(lotto).balance; + uint256 postBalU = address(lotto.owner()).balance; + assertEq(postBalC, 0); + assertEq(postBalU, preBalC + preBalU); + } + + function testHashRequired() public { + vm.expectRevert("phrase not set"); + lotto.mint{value: mp * 10}(10); + assertEq(lotto.totalSupply(), 0); + lotto.setWinningPhrase("24fad66ea96693aaa369548305e1df9e769b32840d454493dbf14dae53ac2d39"); + hoax(address(5)); + lotto.mint{value: mp * 10}(10); + assertEq(lotto.totalSupply(), 10); + } + + function testClaimingWorks() public { + address winner = address(10); + address loser = address(55); + lotto.setWinningPhrase("24fad66ea96693aaa369548305e1df9e769b32840d454493dbf14dae53ac2d39"); + hoax(winner); + lotto.mint{value: mp * 200}(200); + hoax(loser); + lotto.mint{value: mp * 200}(200); + uint256[] memory winners = new uint256[](10); + for (uint256 i; i < 10; i++) { + winners[i] = i; + } + lotto.setWinningTokens(winners); + startHoax(loser); + vm.expectRevert("not owner of token"); + lotto.claimToken(0); + vm.expectRevert("not a winning token"); + lotto.claimToken(200); + vm.stopPrank(); + startHoax(winner); + uint256 winnerPreBal = winner.balance; + lotto.claimToken(0); + uint256 winnerPostBal = winner.balance; + assertEq(winnerPostBal, winnerPreBal + 1 ether); + vm.expectRevert("token already claimed"); + lotto.claimToken(0); + } + + // require amounts + // only winners can claim + // winners can claim once + + + + // halt minting + + // Function to receive Ether. msg.data must be empty + receive() external payable {} + + // Fallback function is called when msg.data is not empty + fallback() external payable {} +} diff --git a/testing.sh b/testing.sh new file mode 100644 index 0000000..56c0183 --- /dev/null +++ b/testing.sh @@ -0,0 +1,7 @@ +#!/bin/bash + +export $(cat .env) +forge script script/Deploy.s.sol:Deploy --private-key=$LOCAL_KEY --rpc-url http://localhost:8545 --broadcast +NET=local HASH=1 .venv/bin/python3 manage.py +cast send --private-key=$LOCAL_KEY --rpc-url=$LOCAL_RPC --value "10 ether" 0x653D2d1D10c79017b2eA5F5a6F02D9Ab6e725395 +cast send --private-key=$LOCAL_KEY --rpc-url=$LOCAL_RPC --value "49.9 ether" $LOCAL_CONTRACT "mint(uint256)" 4900 \ No newline at end of file