43 lines
849 B
Solidity
43 lines
849 B
Solidity
pragma solidity ^0.4.24;
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import "../token/ERC721/IERC721Receiver.sol";
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contract ERC721ReceiverMock is IERC721Receiver {
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bytes4 private _retval;
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bool private _reverts;
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event Received(
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address operator,
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address from,
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uint256 tokenId,
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bytes data,
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uint256 gas
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);
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constructor(bytes4 retval, bool reverts) public {
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_retval = retval;
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_reverts = reverts;
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}
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function onERC721Received(
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address operator,
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address from,
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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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returns(bytes4)
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{
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require(!_reverts);
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emit Received(
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operator,
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from,
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tokenId,
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data,
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gasleft() // msg.gas was deprecated in solidityv0.4.21
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);
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return _retval;
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}
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}
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