{
    "Function": "slitherConstructorConstantVariables",
    "File": "contracts/gmp-sdk/express/ExpressExecutorTracker.sol",
    "Parent Contracts": [
        "contracts/gmp-sdk/interfaces/IAxelarExpressExecutable.sol",
        "contracts/gmp-sdk/interfaces/IAxelarExecutable.sol"
    ],
    "High-Level Calls": [],
    "Internal Calls": [
        "keccak256(bytes)",
        "keccak256(bytes)"
    ],
    "Library Calls": [],
    "Low-Level Calls": [],
    "Code": "abstract contract ExpressExecutorTracker is IAxelarExpressExecutable {\n    uint256 private constant PREFIX_EXPRESS_EXECUTE = uint256(keccak256('express-execute'));\n    uint256 private constant PREFIX_EXPRESS_EXECUTE_WTIH_TOKEN = uint256(keccak256('express-execute-with-token'));\n\n    function _expressExecuteSlot(\n        bytes32 commandId,\n        string calldata sourceChain,\n        string calldata sourceAddress,\n        bytes32 payloadHash\n    ) internal pure returns (uint256 slot) {\n        slot = uint256(keccak256(abi.encode(PREFIX_EXPRESS_EXECUTE, commandId, sourceChain, sourceAddress, payloadHash)));\n    }\n\n    function _expressExecuteWithTokenSlot(\n        bytes32 commandId,\n        string calldata sourceChain,\n        string calldata sourceAddress,\n        bytes32 payloadHash,\n        string calldata symbol,\n        uint256 amount\n    ) internal pure returns (uint256 slot) {\n        slot = uint256(\n            keccak256(abi.encode(PREFIX_EXPRESS_EXECUTE_WTIH_TOKEN, commandId, sourceChain, sourceAddress, payloadHash, symbol, amount))\n        );\n    }\n\n    function getExpressExecutor(\n        bytes32 commandId,\n        string calldata sourceChain,\n        string calldata sourceAddress,\n        bytes32 payloadHash\n    ) external view returns (address expressExecutor) {\n        uint256 slot = _expressExecuteSlot(commandId, sourceChain, sourceAddress, payloadHash);\n\n        assembly {\n            expressExecutor := sload(slot)\n        }\n    }\n\n    function getExpressExecutorWithToken(\n        bytes32 commandId,\n        string calldata sourceChain,\n        string calldata sourceAddress,\n        bytes32 payloadHash,\n        string calldata symbol,\n        uint256 amount\n    ) external view returns (address expressExecutor) {\n        uint256 slot = _expressExecuteWithTokenSlot(commandId, sourceChain, sourceAddress, payloadHash, symbol, amount);\n\n        assembly {\n            expressExecutor := sload(slot)\n        }\n    }\n\n    function _setExpressExecutor(\n        bytes32 commandId,\n        string calldata sourceChain,\n        string calldata sourceAddress,\n        bytes32 payloadHash,\n        address expressExecutor\n    ) internal {\n        uint256 slot = _expressExecuteSlot(commandId, sourceChain, sourceAddress, payloadHash);\n        address currentExecutor;\n\n        assembly {\n            currentExecutor := sload(slot)\n        }\n\n        if (currentExecutor != address(0)) revert ExpressExecutorAlreadySet();\n\n        assembly {\n            sstore(slot, expressExecutor)\n        }\n    }\n\n    function _setExpressExecutorWithToken(\n        bytes32 commandId,\n        string calldata sourceChain,\n        string calldata sourceAddress,\n        bytes32 payloadHash,\n        string calldata symbol,\n        uint256 amount,\n        address expressExecutor\n    ) internal {\n        uint256 slot = _expressExecuteWithTokenSlot(commandId, sourceChain, sourceAddress, payloadHash, symbol, amount);\n        address currentExecutor;\n\n        assembly {\n            currentExecutor := sload(slot)\n        }\n\n        if (currentExecutor != address(0)) revert ExpressExecutorAlreadySet();\n\n        assembly {\n            sstore(slot, expressExecutor)\n        }\n    }\n\n    function _popExpressExecutor(\n        bytes32 commandId,\n        string calldata sourceChain,\n        string calldata sourceAddress,\n        bytes32 payloadHash\n    ) internal returns (address expressExecutor) {\n        uint256 slot = _expressExecuteSlot(commandId, sourceChain, sourceAddress, payloadHash);\n\n        assembly {\n            expressExecutor := sload(slot)\n            if expressExecutor {\n                sstore(slot, 0)\n            }\n        }\n    }\n\n    function _popExpressExecutorWithToken(\n        bytes32 commandId,\n        string calldata sourceChain,\n        string calldata sourceAddress,\n        bytes32 payloadHash,\n        string calldata symbol,\n        uint256 amount\n    ) internal returns (address expressExecutor) {\n        uint256 slot = _expressExecuteWithTokenSlot(commandId, sourceChain, sourceAddress, payloadHash, symbol, amount);\n\n        assembly {\n            expressExecutor := sload(slot)\n            if expressExecutor {\n                sstore(slot, 0)\n            }\n        }\n    }\n}"
}