b7d60f2f9a
* Bump required compiler version to 0.5.2. * Fix shadowed variable warning in ERC20Migrator. * Rename Counter to Counters. * Add dummy state variable to SafeERC20Helper. * Update changelog entry. * Fix CountersImpl name. * Improve changelog entry.
24 lines
649 B
Solidity
24 lines
649 B
Solidity
pragma solidity ^0.5.2;
|
|
|
|
import "../token/ERC721/IERC721Receiver.sol";
|
|
|
|
contract ERC721ReceiverMock is IERC721Receiver {
|
|
bytes4 private _retval;
|
|
bool private _reverts;
|
|
|
|
event Received(address operator, address from, uint256 tokenId, bytes data, uint256 gas);
|
|
|
|
constructor (bytes4 retval, bool reverts) public {
|
|
_retval = retval;
|
|
_reverts = reverts;
|
|
}
|
|
|
|
function onERC721Received(address operator, address from, uint256 tokenId, bytes memory data)
|
|
public returns (bytes4)
|
|
{
|
|
require(!_reverts);
|
|
emit Received(operator, from, tokenId, data, gasleft());
|
|
return _retval;
|
|
}
|
|
}
|