Contract 0x4200000000000000000000000000000000000000 5

/**
 *Submitted for verification at bobascan.com on 2022-12-08
*/

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

/**
 * @title iOVM_L2ToL1MessagePasser
 */
interface iOVM_L2ToL1MessagePasser {
  /**********
   * Events *
   **********/

  event L2ToL1Message(uint256 _nonce, address _sender, bytes _data);

  /********************
   * Public Functions *
   ********************/

  function passMessageToL1(bytes calldata _message) external;
}

/**
 * @title OVM_L2ToL1MessagePasser
 * @dev The L2 to L1 Message Passer is a utility contract which facilitate an L1 proof of the
 * of a message on L2. The L1 Cross Domain Messenger performs this proof in its
 * _verifyStorageProof function, which verifies the existence of the transaction hash in this
 * contract's `sentMessages` mapping.
 */
contract OVM_L2ToL1MessagePasser is iOVM_L2ToL1MessagePasser {
  /**********************
   * Contract Variables *
   **********************/

  mapping(bytes32 => bool) public sentMessages;

  /********************
   * Public Functions *
   ********************/

  /**
   * Passes a message to L1.
   * @param _message Message to pass to L1.
   */
  function passMessageToL1(bytes memory _message) public {
    // Note: although this function is public, only messages sent from the
    // L2CrossDomainMessenger will be relayed by the L1CrossDomainMessenger.
    // This is enforced by a check in L1CrossDomainMessenger._verifyStorageProof().
    sentMessages[keccak256(abi.encodePacked(_message, msg.sender))] = true;
  }
}

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[{"anonymous": false,"inputs": [{"indexed": false,"internalType": "uint256","name": "_nonce","type": "uint256"},{"indexed": false,"internalType": "address","name": "_sender","type": "address"},{"indexed": false,"internalType": "bytes","name": "_data","type": "bytes"}],"name": "L2ToL1Message","type": "event"},{"inputs": [{"internalType": "bytes","name": "_message","type": "bytes"}],"name": "passMessageToL1","outputs": [],"stateMutability": "nonpayable","type": "function"},{"inputs": [{"internalType": "bytes32","name": "","type": "bytes32"}],"name": "sentMessages","outputs": [{"internalType": "bool","name": "","type": "bool"}],"stateMutability": "view","type": "function"}]

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