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openzeppelin-contracts/contracts/mocks/ERC721ReceiverMock.sol

22 lines
558 B

pragma solidity ^0.4.18;
import "../token/ERC721/ERC721Receiver.sol";
contract ERC721ReceiverMock is ERC721Receiver {
bytes4 retval;
bool reverts;
event Received(address _address, uint256 _tokenId, bytes _data, uint256 _gas);
function ERC721ReceiverMock(bytes4 _retval, bool _reverts) public {
retval = _retval;
reverts = _reverts;
}
function onERC721Received(address _address, uint256 _tokenId, bytes _data) public returns(bytes4) {
require(!reverts);
Received(_address, _tokenId, _data, msg.gas);
return retval;
}
}