// 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); }