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openzeppelin-contracts/contracts/mocks/AddressImpl.sol

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// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;
import "../utils/Address.sol";
contract AddressImpl {
string public sharedAnswer;
event CallReturnValue(string data);
function isContract(address account) external view returns (bool) {
return Address.isContract(account);
}
function sendValue(address payable receiver, uint256 amount) external {
Address.sendValue(receiver, amount);
}
function functionCall(address target, bytes calldata data) external {
bytes memory returnData = Address.functionCall(target, data);
emit CallReturnValue(abi.decode(returnData, (string)));
}
function functionCallWithValue(
address target,
bytes calldata data,
uint256 value
) external payable {
bytes memory returnData = Address.functionCallWithValue(target, data, value);
emit CallReturnValue(abi.decode(returnData, (string)));
}
function functionStaticCall(address target, bytes calldata data) external {
bytes memory returnData = Address.functionStaticCall(target, data);
emit CallReturnValue(abi.decode(returnData, (string)));
}
function functionDelegateCall(address target, bytes calldata data) external {
bytes memory returnData = Address.functionDelegateCall(target, data);
emit CallReturnValue(abi.decode(returnData, (string)));
}
// sendValue's tests require the contract to hold Ether
receive() external payable {}
}