55 lines
1.6 KiB
Solidity
55 lines
1.6 KiB
Solidity
// SPDX-License-Identifier: MIT
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pragma solidity ^0.8.0;
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import "../token/ERC721/IERC721ReceiverUpgradeable.sol";
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import "../proxy/utils/Initializable.sol";
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contract ERC721ReceiverMockUpgradeable is Initializable, IERC721ReceiverUpgradeable {
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enum Error {
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None,
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RevertWithMessage,
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RevertWithoutMessage,
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Panic
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}
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bytes4 private _retval;
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Error private _error;
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event Received(address operator, address from, uint256 tokenId, bytes data, uint256 gas);
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function __ERC721ReceiverMock_init(bytes4 retval, Error error) internal onlyInitializing {
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__ERC721ReceiverMock_init_unchained(retval, error);
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}
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function __ERC721ReceiverMock_init_unchained(bytes4 retval, Error error) internal onlyInitializing {
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_retval = retval;
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_error = error;
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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 memory data
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) public override returns (bytes4) {
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if (_error == Error.RevertWithMessage) {
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revert("ERC721ReceiverMock: reverting");
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} else if (_error == Error.RevertWithoutMessage) {
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revert();
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} else if (_error == Error.Panic) {
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uint256 a = uint256(0) / uint256(0);
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a;
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}
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emit Received(operator, from, tokenId, data, gasleft());
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return _retval;
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}
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/**
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* This empty reserved space is put in place to allow future versions to add new
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* variables without shifting down storage in the inheritance chain.
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* See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps
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*/
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uint256[50] private __gap;
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}
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