// SPDX-License-Identifier: MIT pragma solidity ^0.8.0; /// @author: manifold.xyz import "@openzeppelin/contracts/utils/introspection/ERC165Checker.sol"; import "@manifoldxyz/libraries-solidity/contracts/access/AdminControl.sol"; import "../../core/IERC1155CreatorCore.sol"; import "./IERC1155CreatorExtensionBurnable.sol"; /** * @dev Suggested implementation for extensions that want to receive onBurn callbacks * Mint tracks the creators/tokens created, and onBurn only accepts callbacks from * the creator of a token created. */ abstract contract ERC1155CreatorExtensionBurnable is AdminControl, IERC1155CreatorExtensionBurnable { mapping (uint256 => address) private _tokenCreators; /** * @dev See {IERC165-supportsInterface}. */ function supportsInterface(bytes4 interfaceId) public view virtual override(AdminControl, IERC165) returns (bool) { return interfaceId == type(IERC1155CreatorExtensionBurnable).interfaceId || super.supportsInterface(interfaceId); } /** * @dev batch mint a token */ function mintNew(address creator, address[] calldata to, uint256[] calldata amounts, string[] calldata uris) external adminRequired returns (uint256[] memory) { return _mintNew(creator, to, amounts, uris); } function _mintNew(address creator, address[] calldata to, uint256[] calldata amounts, string[] calldata uris) internal returns (uint256[] memory tokenIds) { require(ERC165Checker.supportsInterface(creator, type(IERC1155CreatorCore).interfaceId), "creator must implement IERC1155CreatorCore"); tokenIds = IERC1155CreatorCore(creator).mintExtensionNew(to, amounts, uris); for (uint i; i < tokenIds.length;) { _tokenCreators[tokenIds[i]] = creator; unchecked { ++i; } } } /** * @dev See {IERC1155CreatorExtensionBurnable-onBurn}. */ function onBurn(address, uint256[] calldata tokenIds, uint256[] calldata) public virtual override { for (uint i; i < tokenIds.length;) { require(_tokenCreators[tokenIds[i]] == msg.sender, "Can only be called by token creator"); unchecked { ++i; } } } }