Created
February 6, 2025 15:56
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function create2Address(address deployer, bytes32 salt, bytes32 codeHash) pure returns (address) { | |
return address(uint160(uint256(keccak256(abi.encodePacked(hex"ff", deployer, salt, codeHash))))); | |
} | |
contract Factory { | |
address public caller; | |
function fetch(bytes32 salt) public { | |
caller = msg.sender; | |
new Funder{salt: salt}(); | |
caller = address(0); | |
} | |
function getFunderAddress(bytes32 salt) public view returns (address) { | |
bytes32 codeHash = keccak256(abi.encodePacked(type(Funder).creationCode)); | |
return create2Address(address(this), salt, codeHash); | |
} | |
} | |
contract Funder { | |
constructor() { | |
(bool ok,) = Factory(msg.sender).caller().call{value: 1 ether}(""); | |
require(ok); | |
selfdestruct(payable(0)); | |
} | |
} | |
contract ABCTest is Test { | |
Factory factory = new Factory(); | |
bytes32 salt; | |
address funder = factory.getFunderAddress(salt); | |
constructor() { | |
deal(funder, 2 ether); | |
address(0).call{value: address(this).balance}(""); | |
} | |
function test_xxx() public { | |
factory.fetch(salt); | |
} | |
receive() external payable { | |
if (address(this).balance < 2 ether) { | |
callFactory(); | |
} | |
} | |
function callFactory() public { | |
factory.fetch(bytes32(0)); | |
} | |
} |
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