259b9da3e6
* make _tokenId indexed in Transfer and Approval events via: https://github.com/ethereum/EIPs/pull/1124/files * fix: make name() and symbol() external instead of public * feat: implement ERC721's ERC165 * feat: erc165 tests * fix: don't use chai-as-promised in direct await * fix: reorganize to /introspection * feat: abstract all erc165 tests to a behavior * feat: disallow registering 0xffffffff
79 lines
2.4 KiB
Solidity
79 lines
2.4 KiB
Solidity
pragma solidity ^0.4.23;
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import "../../introspection/SupportsInterfaceWithLookup.sol";
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/**
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* @title ERC721 Non-Fungible Token Standard basic interface
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* @dev see https://github.com/ethereum/EIPs/blob/master/EIPS/eip-721.md
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*/
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contract ERC721Basic is SupportsInterfaceWithLookup {
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event Transfer(
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address indexed _from,
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address indexed _to,
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uint256 indexed _tokenId
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);
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event Approval(
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address indexed _owner,
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address indexed _approved,
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uint256 indexed _tokenId
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);
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event ApprovalForAll(
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address indexed _owner,
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address indexed _operator,
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bool _approved
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);
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bytes4 private constant InterfaceId_ERC721 = 0x80ac58cd;
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/*
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* 0x80ac58cd ===
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* bytes4(keccak256('balanceOf(address)')) ^
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* bytes4(keccak256('ownerOf(uint256)')) ^
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* bytes4(keccak256('approve(address,uint256)')) ^
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* bytes4(keccak256('getApproved(uint256)')) ^
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* bytes4(keccak256('setApprovalForAll(address,bool)')) ^
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* bytes4(keccak256('isApprovedForAll(address,address)')) ^
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* bytes4(keccak256('transferFrom(address,address,uint256)')) ^
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* bytes4(keccak256('safeTransferFrom(address,address,uint256)')) ^
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* bytes4(keccak256('safeTransferFrom(address,address,uint256,bytes)'))
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*/
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bytes4 private constant InterfaceId_ERC721Exists = 0x4f558e79;
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/*
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* 0x4f558e79 ===
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* bytes4(keccak256('exists(uint256)'))
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*/
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constructor ()
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public
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{
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// register the supported interfaces to conform to ERC721 via ERC165
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_registerInterface(InterfaceId_ERC721);
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_registerInterface(InterfaceId_ERC721Exists);
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}
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function balanceOf(address _owner) public view returns (uint256 _balance);
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function ownerOf(uint256 _tokenId) public view returns (address _owner);
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function exists(uint256 _tokenId) public view returns (bool _exists);
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function approve(address _to, uint256 _tokenId) public;
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function getApproved(uint256 _tokenId)
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public view returns (address _operator);
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function setApprovalForAll(address _operator, bool _approved) public;
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function isApprovedForAll(address _owner, address _operator)
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public view returns (bool);
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function transferFrom(address _from, address _to, uint256 _tokenId) public;
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function safeTransferFrom(address _from, address _to, uint256 _tokenId)
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public;
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function safeTransferFrom(
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address _from,
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address _to,
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uint256 _tokenId,
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bytes _data
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)
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public;
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}
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