ERC1155 OpenZeppelin burnable interface from another contract 不能外部调用burnable合约接口

1.0 OpenZeppelin ERC1155Burnable

OpenZeppelin有Extensions ERC1155Burnable。如果另一個智能合約需調用ERC1155Burnable時，必需要有IERC1155Burnable接口。
但OpenZeppelin沒有Burnable接口，所以要自己創建 IERC1155Burnable接口。

 

2.1 ERC1155 ContractA

?

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33

import "@openzeppelin/contracts/token/ERC1155/ERC1155.sol"; import "@openzeppelin/contracts/access/Ownable.sol"; import "@openzeppelin/contracts/token/ERC1155/extensions/ERC1155Burnable.sol";   contract ContractA is ERC1155, Ownable, ERC1155Burnable {     constructor() ERC1155("") {}       function setURI(string memory newuri) public onlyOwner {         _setURI(newuri);     }       function mint(address account, uint256 id, uint256 amount, bytes memory data)         public         onlyOwner     {         _mint(account, id, amount, data);     }       function mintBatch(address to, uint256[] memory ids, uint256[] memory amounts, bytes memory data)         public         onlyOwner     {         _mintBatch(to, ids, amounts, data);     }           /*      * Overrides burn 重載燒毀      */     function burn(address account, uint256 id, uint256 amount) public virtual {         require(account == _msgSender() || isApprovedForAll(account, _msgSender()), "Ikasumi: caller is not token owner or approved");         _burn(account, id, amount);     } }

　　Overrides burn 重載燒毀

2.2 ERC1155 ContractB call ContractA burn funcs()

?

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32

import "@openzeppelin/contracts/token/ERC1155/IERC1155.sol"; import "@openzeppelin/contracts/access/Ownable.sol";   /*  * 創建 IERC1155Burnable接口  */ interface IERC1155ContractA is IERC1155 {     function burn(address account, uint256 id, uint256 value) external; }   contract ContractB is Ownable {     /*      * 全域參數 IERC1155Burnable接口      */     IERC1155ContractA public erc1155TokenA;           /*      * set contract address      */     constructor(         IERC1155ContractA _erc1155TokenA     {         erc1155TokenA = _erc1155TokenA;     }           /*      * call ContractA burn funcs() via IERC1155Burnable接口      */     function burn(uint256 tokenId) external nonReentrant {         erc1155TokenA.burn(msg.sender, tokenId, qty);     } }

　　ContractB constructor sets address of IERC1155ContractA, then call contractA burn funcs().

 

3.0 why we do it?

如果ERC1155是獨立NFT合約ContractA，而操作邏輯是ContractB，就需要使用IERC1155Burnable。