Openzeppelin庫第六期:Proposals
阿新 • • 發佈:2018-12-16
- TokenMetaData.sol:對ERC-URI的設定
pragma solidity ^0.4.21; import "../../token/ERC20/ERC20.sol"; /** * @title ERC-1047 Token Metadata * @dev See https://eips.ethereum.org/EIPS/eip-1046 * @dev tokenURI must respond with a URI that implements https://eips.ethereum.org/EIPS/eip-1047 * @dev TODO - update https://github.com/OpenZeppelin/openzeppelin-solidity/blob/master/contracts/token/ERC721/ERC721.sol#L17 when 1046 is finalized */ contract ERC20TokenMetadata is ERC20 { function tokenURI() external view returns (string); } contract ERC20WithMetadata is ERC20TokenMetadata { string private tokenURI_ = ""; constructor(string _tokenURI) public { tokenURI_ = _tokenURI; } function tokenURI() external view returns (string) { return tokenURI_; } }