LegacyCrossDomainUtils.sol

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.9;

// Importing from the legacy contracts package causes issues with the build of the contract bindings
// so we just copy the library here from
// /packages/contracts/contracts/libraries/bridge/Lib_CrossDomainUtils.sol at commit
// 7866168c
/**
 * @title LegacyCrossDomainUtils
 */
library LegacyCrossDomainUtils {
    /**
     * Generates the correct cross domain calldata for a message.
     * @param _target Target contract address.
     * @param _sender Message sender address.
     * @param _message Message to send to the target.
     * @param _messageNonce Nonce for the provided message.
     * @return ABI encoded cross domain calldata.
     */
    function encodeXDomainCalldata(
        address _target,
        address _sender,
        bytes memory _message,
        uint256 _messageNonce
    ) internal pure returns (bytes memory) {
        return
            abi.encodeWithSignature(
                "relayMessage(address,address,bytes,uint256)",
                _target,
                _sender,
                _message,
                _messageNonce
            );
    }
}