{
    "Function": "slitherConstructorConstantVariables",
    "File": "contracts/OFT/lzApp/NonblockingLzApp.sol",
    "Parent Contracts": [
        "contracts/OFT/lzApp/LzApp.sol",
        "contracts/OFT/interfaces/ILayerZeroUserApplicationConfig.sol",
        "contracts/OFT/interfaces/ILayerZeroReceiver.sol",
        "node_modules/@openzeppelin/contracts/access/Ownable.sol",
        "node_modules/@openzeppelin/contracts/utils/Context.sol"
    ],
    "High-Level Calls": [],
    "Internal Calls": [],
    "Library Calls": [],
    "Low-Level Calls": [],
    "Code": "abstract contract NonblockingLzApp is LzApp {\n    using ExcessivelySafeCall for address;\n\n    constructor(address _endpoint) LzApp(_endpoint) {}\n\n    mapping(uint16 => mapping(bytes => mapping(uint64 => bytes32))) public failedMessages;\n\n    event MessageFailed(uint16 _srcChainId, bytes _srcAddress, uint64 _nonce, bytes _payload, bytes _reason);\n    event RetryMessageSuccess(uint16 _srcChainId, bytes _srcAddress, uint64 _nonce, bytes32 _payloadHash);\n\n    // overriding the virtual function in LzReceiver\n    function _blockingLzReceive(uint16 _srcChainId, bytes memory _srcAddress, uint64 _nonce, bytes memory _payload) internal virtual override {\n        (bool success, bytes memory reason) = address(this).excessivelySafeCall(gasleft(), 150, abi.encodeWithSelector(this.nonblockingLzReceive.selector, _srcChainId, _srcAddress, _nonce, _payload));\n        // try-catch all errors/exceptions\n        if (!success) {\n            _storeFailedMessage(_srcChainId, _srcAddress, _nonce, _payload, reason);\n        }\n    }\n\n    function _storeFailedMessage(uint16 _srcChainId, bytes memory _srcAddress, uint64 _nonce, bytes memory _payload, bytes memory _reason) internal virtual {\n        failedMessages[_srcChainId][_srcAddress][_nonce] = keccak256(_payload);\n        emit MessageFailed(_srcChainId, _srcAddress, _nonce, _payload, _reason);\n    }\n\n    function nonblockingLzReceive(uint16 _srcChainId, bytes calldata _srcAddress, uint64 _nonce, bytes calldata _payload) public virtual {\n        // only internal transaction\n        require(_msgSender() == address(this), \"NonblockingLzApp: caller must be LzApp\");\n        _nonblockingLzReceive(_srcChainId, _srcAddress, _nonce, _payload);\n    }\n\n    //@notice override this function\n    function _nonblockingLzReceive(uint16 _srcChainId, bytes memory _srcAddress, uint64 _nonce, bytes memory _payload) internal virtual;\n\n    function retryMessage(uint16 _srcChainId, bytes calldata _srcAddress, uint64 _nonce, bytes calldata _payload) public payable virtual {\n        // assert there is message to retry\n        bytes32 payloadHash = failedMessages[_srcChainId][_srcAddress][_nonce];\n        require(payloadHash != bytes32(0), \"NonblockingLzApp: no stored message\");\n        require(keccak256(_payload) == payloadHash, \"NonblockingLzApp: invalid payload\");\n        // clear the stored message\n        failedMessages[_srcChainId][_srcAddress][_nonce] = bytes32(0);\n        // execute the message. revert if it fails again\n        _nonblockingLzReceive(_srcChainId, _srcAddress, _nonce, _payload);\n        emit RetryMessageSuccess(_srcChainId, _srcAddress, _nonce, payloadHash);\n    }\n}"
}