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abi.encodeWithSignature detector#

The detector checks for incorrect ABI signatures in ABI.encodeWithSignature calls. The most common mistake is the use of uint instead of uint256 or int instead of int256.

Examples#

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import "@openzeppelin/contracts/interfaces/IERC20.sol";

contract Example {
    function transfer(IERC20 token, uint amount) external {
        bytes memory data = abi.encodeWithSignature(
            "transfer(address,uint)", // (1)!
            msg.sender,
            amount
        );
        (bool success, ) = address(token).call(data);
        require(success, "Transfer failed");
    }
}
  1. uint256 must be used instead of uint to generate the correct function selector.

Parameters#

The detector does not accept any additional parameters.