// 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); }