{ "contractName": "StateChannelModule", "abi": [ { "constant": true, "inputs": [], "name": "manager", "outputs": [ { "name": "", "type": "address" } ], "payable": false, "stateMutability": "view", "type": "function" }, { "constant": false, "inputs": [ { "name": "_masterCopy", "type": "address" } ], "name": "changeMasterCopy", "outputs": [], "payable": false, "stateMutability": "nonpayable", "type": "function" }, { "constant": true, "inputs": [], "name": "NAME", "outputs": [ { "name": "", "type": "string" } ], "payable": false, "stateMutability": "view", "type": "function" }, { "constant": true, "inputs": [ { "name": "", "type": "bytes32" } ], "name": "isExecuted", "outputs": [ { "name": "", "type": "uint256" } ], "payable": false, "stateMutability": "view", "type": "function" }, { "constant": true, "inputs": [], "name": "VERSION", "outputs": [ { "name": "", "type": "string" } ], "payable": false, "stateMutability": "view", "type": "function" }, { "constant": false, "inputs": [], 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"source": "pragma solidity 0.4.24;\nimport \"../base/Module.sol\";\nimport \"../base/OwnerManager.sol\";\nimport \"../common/SignatureDecoder.sol\";\n\n\n/// @title Gnosis Safe State Module - A module that allows interaction with statechannels.\n/// @author Stefan George - \n/// @author Richard Meissner - \ncontract StateChannelModule is Module, SignatureDecoder {\n\n string public constant NAME = \"State Channel Module\";\n string public constant VERSION = \"0.0.2\";\n\n // isExecuted mapping allows to check if a transaction (by hash) was already executed.\n mapping (bytes32 => uint256) public isExecuted;\n\n /// @dev Setup function sets manager\n function setup()\n public\n {\n setManager();\n }\n\n /// @dev Allows to execute a Safe transaction confirmed by required number of owners.\n /// @param to Destination address of Safe transaction.\n /// @param value Ether value of Safe transaction.\n /// @param data Data payload of Safe transaction.\n /// @param operation Operation type of Safe transaction.\n /// @param nonce Nonce used for this Safe transaction.\n /// @param signatures Packed signature data ({bytes32 r}{bytes32 s}{uint8 v})\n function execTransaction(\n address to, \n uint256 value, \n bytes data, \n Enum.Operation operation, \n uint256 nonce,\n bytes signatures\n )\n public\n {\n bytes32 transactionHash = getTransactionHash(to, value, data, operation, nonce);\n require(isExecuted[transactionHash] == 0, \"Transaction already executed\");\n checkHash(transactionHash, signatures);\n // Mark as executed and execute transaction.\n isExecuted[transactionHash] = 1;\n require(manager.execTransactionFromModule(to, value, data, operation), \"Could not execute transaction\");\n }\n\n function checkHash(bytes32 transactionHash, bytes signatures)\n internal\n view\n {\n // There cannot be an owner with address 0.\n address lastOwner = address(0);\n address currentOwner;\n uint256 i;\n uint256 threshold = OwnerManager(manager).getThreshold();\n // Validate threshold is reached.\n for (i = 0; i < threshold; i++) {\n currentOwner = recoverKey(transactionHash, signatures, i);\n require(OwnerManager(manager).isOwner(currentOwner), \"Signature not provided by owner\");\n require(currentOwner > lastOwner, \"Signatures are not ordered by owner address\");\n lastOwner = currentOwner;\n }\n }\n\n /// @dev Returns hash to be signed by owners.\n /// @param to Destination address.\n /// @param value Ether value.\n /// @param data Data payload.\n /// @param operation Operation type.\n /// @param nonce Transaction nonce.\n /// @return Transaction hash.\n function getTransactionHash(\n address to, \n uint256 value, \n bytes data, \n Enum.Operation operation, \n uint256 nonce\n )\n public\n view\n returns (bytes32)\n {\n return keccak256(abi.encodePacked(byte(0x19), byte(0), this, to, value, data, operation, nonce));\n }\n}\n", "sourcePath": "/Users/apanizo/git/gnosis/safe-contracts/contracts/modules/StateChannelModule.sol", "ast": { "absolutePath": "/Users/apanizo/git/gnosis/safe-contracts/contracts/modules/StateChannelModule.sol", "exportedSymbols": { "StateChannelModule": [ 2562 ] }, "id": 2563, "nodeType": "SourceUnit", "nodes": [ { "id": 2377, "literals": [ "solidity", "0.4", ".24" ], "nodeType": "PragmaDirective", "src": "0:23:19" }, { "absolutePath": "/Users/apanizo/git/gnosis/safe-contracts/contracts/base/Module.sol", "file": "../base/Module.sol", "id": 2378, "nodeType": "ImportDirective", "scope": 2563, "sourceUnit": 936, "src": "24:28:19", "symbolAliases": [], "unitAlias": "" }, { "absolutePath": "/Users/apanizo/git/gnosis/safe-contracts/contracts/base/OwnerManager.sol", "file": "../base/OwnerManager.sol", "id": 2379, "nodeType": "ImportDirective", "scope": 2563, "sourceUnit": 1653, "src": "53:34:19", "symbolAliases": [], "unitAlias": "" }, { "absolutePath": "/Users/apanizo/git/gnosis/safe-contracts/contracts/common/SignatureDecoder.sol", "file": "../common/SignatureDecoder.sol", "id": 2380, "nodeType": "ImportDirective", "scope": 2563, "sourceUnit": 1792, "src": "88:40:19", "symbolAliases": [], "unitAlias": "" }, { "baseContracts": [ { "arguments": null, "baseName": { "contractScope": null, "id": 2381, "name": "Module", "nodeType": "UserDefinedTypeName", "referencedDeclaration": 935, "src": "351:6:19", "typeDescriptions": { "typeIdentifier": "t_contract$_Module_$935", "typeString": "contract Module" } }, "id": 2382, "nodeType": "InheritanceSpecifier", "src": "351:6:19" }, { "arguments": null, "baseName": { "contractScope": null, "id": 2383, "name": "SignatureDecoder", "nodeType": "UserDefinedTypeName", "referencedDeclaration": 1791, "src": "359:16:19", "typeDescriptions": { "typeIdentifier": "t_contract$_SignatureDecoder_$1791", "typeString": "contract SignatureDecoder" } }, "id": 2384, "nodeType": "InheritanceSpecifier", "src": "359:16:19" } ], "contractDependencies": [ 935, 1693, 1735, 1791 ], "contractKind": "contract", "documentation": "@title Gnosis Safe State Module - A module that allows interaction with statechannels.\n @author Stefan George - \n @author Richard Meissner - ", "fullyImplemented": true, "id": 2562, "linearizedBaseContracts": [ 2562, 1791, 935, 1693, 1735 ], "name": "StateChannelModule", "nodeType": "ContractDefinition", "nodes": [ { "constant": true, "id": 2387, "name": "NAME", "nodeType": "VariableDeclaration", "scope": 2562, "src": "383:52:19", "stateVariable": true, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_string_memory", "typeString": "string" }, "typeName": { "id": 2385, "name": "string", "nodeType": "ElementaryTypeName", "src": "383:6:19", "typeDescriptions": { "typeIdentifier": "t_string_storage_ptr", "typeString": "string" } }, "value": { "argumentTypes": null, "hexValue": "5374617465204368616e6e656c204d6f64756c65", "id": 2386, "isConstant": false, "isLValue": false, "isPure": true, "kind": "string", "lValueRequested": false, "nodeType": "Literal", "src": "413:22:19", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_stringliteral_e66fa361bdba11103aaf2321b03707a79b393abf1f410f3f609398777fd3a713", "typeString": "literal_string \"State Channel Module\"" }, "value": "State Channel Module" }, "visibility": "public" }, { "constant": true, "id": 2390, "name": "VERSION", "nodeType": "VariableDeclaration", "scope": 2562, "src": "441:40:19", "stateVariable": true, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_string_memory", "typeString": "string" }, "typeName": { "id": 2388, "name": "string", "nodeType": "ElementaryTypeName", "src": "441:6:19", "typeDescriptions": { "typeIdentifier": "t_string_storage_ptr", "typeString": "string" } }, "value": { "argumentTypes": null, "hexValue": "302e302e32", "id": 2389, "isConstant": false, "isLValue": false, "isPure": true, "kind": "string", "lValueRequested": false, "nodeType": "Literal", "src": "474:7:19", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_stringliteral_b30367effb941b728181f67f3bd24a38a4fff408ee7fb3b074425c9fb5e9be74", "typeString": "literal_string \"0.0.2\"" }, "value": "0.0.2" }, "visibility": "public" }, { "constant": false, "id": 2394, "name": "isExecuted", "nodeType": "VariableDeclaration", "scope": 2562, "src": "579:46:19", "stateVariable": true, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_bytes32_$_t_uint256_$", "typeString": "mapping(bytes32 => uint256)" }, "typeName": { "id": 2393, "keyType": { "id": 2391, "name": "bytes32", "nodeType": "ElementaryTypeName", "src": "588:7:19", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } }, "nodeType": "Mapping", "src": "579:28:19", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_bytes32_$_t_uint256_$", "typeString": "mapping(bytes32 => uint256)" }, "valueType": { "id": 2392, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "599:7:19", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } }, "value": null, "visibility": "public" }, { "body": { "id": 2400, "nodeType": "Block", "src": "709:29:19", "statements": [ { "expression": { "argumentTypes": null, "arguments": [], "expression": { "argumentTypes": [], "id": 2397, "name": "setManager", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 934, "src": "719:10:19", "typeDescriptions": { "typeIdentifier": "t_function_internal_nonpayable$__$returns$__$", "typeString": "function ()" } }, "id": 2398, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "719:12:19", "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 2399, "nodeType": "ExpressionStatement", "src": "719:12:19" } ] }, "documentation": "@dev Setup function sets manager", "id": 2401, "implemented": true, "isConstructor": false, "isDeclaredConst": false, "modifiers": [], "name": "setup", "nodeType": "FunctionDefinition", "parameters": { "id": 2395, "nodeType": "ParameterList", "parameters": [], "src": "687:2:19" }, "payable": false, "returnParameters": { "id": 2396, "nodeType": "ParameterList", "parameters": [], "src": "709:0:19" }, "scope": 2562, "src": "673:65:19", "stateMutability": "nonpayable", "superFunction": null, "visibility": "public" }, { "body": { "id": 2457, "nodeType": "Block", "src": "1403:434:19", "statements": [ { "assignments": [ 2417 ], "declarations": [ { "constant": false, "id": 2417, "name": "transactionHash", "nodeType": "VariableDeclaration", "scope": 2458, "src": "1413:23:19", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" }, "typeName": { "id": 2416, "name": "bytes32", "nodeType": "ElementaryTypeName", "src": "1413:7:19", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } }, "value": null, "visibility": "internal" } ], "id": 2425, "initialValue": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 2419, "name": "to", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2403, "src": "1458:2:19", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "argumentTypes": null, "id": 2420, "name": "value", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2405, "src": "1462:5:19", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, { "argumentTypes": null, "id": 2421, "name": "data", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2407, "src": "1469:4:19", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } }, { "argumentTypes": null, "id": 2422, "name": "operation", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2409, "src": 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"t_function_internal_view$_t_address_$_t_uint256_$_t_bytes_memory_ptr_$_t_enum$_Operation_$1658_$_t_uint256_$returns$_t_bytes32_$", "typeString": "function (address,uint256,bytes memory,enum Enum.Operation,uint256) view returns (bytes32)" } }, "id": 2424, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "1439:53:19", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } }, "nodeType": "VariableDeclarationStatement", "src": "1413:79:19" }, { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "commonType": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "id": 2431, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "id": 2427, "name": "isExecuted", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2394, "src": "1510:10:19", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_bytes32_$_t_uint256_$", "typeString": "mapping(bytes32 => uint256)" } }, "id": 2429, "indexExpression": { "argumentTypes": null, "id": 2428, "name": "transactionHash", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2417, "src": "1521:15:19", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "nodeType": "IndexAccess", "src": "1510:27:19", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "BinaryOperation", "operator": "==", "rightExpression": { "argumentTypes": null, "hexValue": "30", "id": 2430, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "1541:1:19", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_0_by_1", "typeString": "int_const 0" }, "value": "0" }, "src": "1510:32:19", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, { "argumentTypes": null, "hexValue": "5472616e73616374696f6e20616c7265616479206578656375746564", "id": 2432, "isConstant": false, "isLValue": false, "isPure": true, "kind": "string", "lValueRequested": false, "nodeType": "Literal", "src": "1544:30:19", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_stringliteral_3c3f7cf602281cf7a98efd78d98ba46309975dadee18bcb57e640145699bd800", "typeString": "literal_string \"Transaction already executed\"" }, "value": "Transaction already executed" } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_bool", "typeString": "bool" }, { "typeIdentifier": "t_stringliteral_3c3f7cf602281cf7a98efd78d98ba46309975dadee18bcb57e640145699bd800", "typeString": "literal_string \"Transaction already executed\"" } ], "id": 2426, "name": "require", "nodeType": "Identifier", "overloadedDeclarations": [ 4494, 4495 ], "referencedDeclaration": 4495, "src": "1502:7:19", "typeDescriptions": { "typeIdentifier": "t_function_require_pure$_t_bool_$_t_string_memory_ptr_$returns$__$", "typeString": "function (bool,string memory) pure" } }, "id": 2433, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "1502:73:19", "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 2434, "nodeType": "ExpressionStatement", "src": "1502:73:19" }, { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 2436, "name": "transactionHash", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2417, "src": "1595:15:19", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } }, { "argumentTypes": null, "id": 2437, "name": "signatures", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2413, "src": "1612:10:19", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_bytes32", "typeString": "bytes32" }, { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } ], "id": 2435, "name": "checkHash", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2527, "src": "1585:9:19", "typeDescriptions": { "typeIdentifier": "t_function_internal_view$_t_bytes32_$_t_bytes_memory_ptr_$returns$__$", "typeString": "function (bytes32,bytes memory) view" } }, "id": 2438, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "1585:38:19", "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 2439, "nodeType": "ExpressionStatement", "src": "1585:38:19" }, { "expression": { "argumentTypes": null, "id": 2444, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "id": 2440, "name": "isExecuted", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2394, "src": "1686:10:19", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_bytes32_$_t_uint256_$", "typeString": "mapping(bytes32 => uint256)" } }, "id": 2442, "indexExpression": { "argumentTypes": null, "id": 2441, "name": "transactionHash", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2417, "src": "1697:15:19", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": true, "nodeType": "IndexAccess", "src": "1686:27:19", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "Assignment", "operator": "=", "rightHandSide": { "argumentTypes": null, "hexValue": "31", "id": 2443, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "1716:1:19", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_1_by_1", "typeString": "int_const 1" }, "value": "1" }, "src": "1686:31:19", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "id": 2445, "nodeType": "ExpressionStatement", "src": "1686:31:19" }, { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 2449, "name": "to", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2403, "src": "1769:2:19", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "argumentTypes": null, "id": 2450, "name": "value", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2405, "src": "1773:5:19", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, { "argumentTypes": null, "id": 2451, "name": "data", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2407, "src": "1780:4:19", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } }, { "argumentTypes": null, "id": 2452, "name": "operation", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2409, "src": "1786:9:19", "typeDescriptions": { "typeIdentifier": "t_enum$_Operation_$1658", "typeString": "enum Enum.Operation" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_address", "typeString": "address" }, { "typeIdentifier": "t_uint256", "typeString": "uint256" }, { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" }, { "typeIdentifier": "t_enum$_Operation_$1658", "typeString": "enum Enum.Operation" } ], "expression": { "argumentTypes": null, "id": 2447, "name": "manager", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 900, "src": "1735:7:19", "typeDescriptions": { "typeIdentifier": "t_contract$_ModuleManager_$1212", "typeString": "contract ModuleManager" } }, "id": 2448, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "execTransactionFromModule", "nodeType": "MemberAccess", "referencedDeclaration": 1138, "src": "1735:33:19", "typeDescriptions": { "typeIdentifier": "t_function_external_nonpayable$_t_address_$_t_uint256_$_t_bytes_memory_ptr_$_t_enum$_Operation_$1658_$returns$_t_bool_$", "typeString": "function (address,uint256,bytes memory,enum Enum.Operation) external returns (bool)" } }, "id": 2453, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "1735:61:19", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, { "argumentTypes": null, "hexValue": "436f756c64206e6f742065786563757465207472616e73616374696f6e", "id": 2454, "isConstant": false, "isLValue": false, "isPure": true, "kind": "string", "lValueRequested": false, "nodeType": "Literal", "src": "1798:31:19", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_stringliteral_b0a2f29e31cc28eee068c27ff93342fb8d9840dcad25c6f669ce8154844930c4", "typeString": "literal_string \"Could not execute transaction\"" }, "value": "Could not execute transaction" } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_bool", "typeString": "bool" }, { "typeIdentifier": "t_stringliteral_b0a2f29e31cc28eee068c27ff93342fb8d9840dcad25c6f669ce8154844930c4", "typeString": "literal_string \"Could not execute transaction\"" } ], "id": 2446, "name": "require", "nodeType": "Identifier", "overloadedDeclarations": [ 4494, 4495 ], "referencedDeclaration": 4495, "src": "1727:7:19", "typeDescriptions": { "typeIdentifier": "t_function_require_pure$_t_bool_$_t_string_memory_ptr_$returns$__$", "typeString": "function (bool,string memory) pure" } }, "id": 2455, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "1727:103:19", "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 2456, "nodeType": "ExpressionStatement", "src": "1727:103:19" } ] }, "documentation": "@dev Allows to execute a Safe transaction confirmed by required number of owners.\n @param to Destination address of Safe transaction.\n @param value Ether value of Safe transaction.\n @param data Data payload of Safe transaction.\n @param operation Operation type of Safe transaction.\n @param nonce Nonce used for this Safe transaction.\n @param signatures Packed signature data ({bytes32 r}{bytes32 s}{uint8 v})", "id": 2458, "implemented": true, "isConstructor": false, "isDeclaredConst": false, "modifiers": [], "name": "execTransaction", "nodeType": "FunctionDefinition", "parameters": { "id": 2414, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 2403, "name": "to", "nodeType": "VariableDeclaration", "scope": 2458, "src": "1237:10:19", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 2402, "name": "address", "nodeType": "ElementaryTypeName", "src": "1237:7:19", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 2405, "name": "value", "nodeType": "VariableDeclaration", "scope": 2458, "src": "1258:13:19", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 2404, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "1258:7:19", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 2407, "name": "data", "nodeType": "VariableDeclaration", "scope": 2458, "src": "1282:10:19", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes" }, "typeName": { "id": 2406, "name": "bytes", "nodeType": "ElementaryTypeName", "src": "1282:5:19", "typeDescriptions": { "typeIdentifier": "t_bytes_storage_ptr", "typeString": "bytes" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 2409, "name": "operation", "nodeType": "VariableDeclaration", "scope": 2458, "src": "1303:24:19", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_enum$_Operation_$1658", "typeString": "enum Enum.Operation" }, "typeName": { "contractScope": null, "id": 2408, "name": "Enum.Operation", "nodeType": "UserDefinedTypeName", "referencedDeclaration": 1658, "src": "1303:14:19", "typeDescriptions": { "typeIdentifier": "t_enum$_Operation_$1658", "typeString": "enum Enum.Operation" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 2411, "name": "nonce", "nodeType": "VariableDeclaration", "scope": 2458, "src": "1338:13:19", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 2410, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "1338:7:19", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 2413, "name": "signatures", "nodeType": "VariableDeclaration", "scope": 2458, "src": "1361:16:19", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes" }, "typeName": { "id": 2412, "name": "bytes", "nodeType": "ElementaryTypeName", "src": "1361:5:19", "typeDescriptions": { "typeIdentifier": "t_bytes_storage_ptr", "typeString": "bytes" } }, "value": null, "visibility": "internal" } ], "src": "1227:156:19" }, "payable": false, "returnParameters": { "id": 2415, "nodeType": "ParameterList", "parameters": [], "src": "1403:0:19" }, "scope": 2562, "src": "1203:634:19", "stateMutability": "nonpayable", "superFunction": null, "visibility": "public" }, { "body": { "id": 2526, "nodeType": "Block", "src": "1939:612:19", "statements": [ { "assignments": [ 2466 ], "declarations": [ { "constant": false, "id": 2466, "name": "lastOwner", "nodeType": "VariableDeclaration", "scope": 2527, "src": "2001:17:19", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 2465, "name": "address", "nodeType": "ElementaryTypeName", "src": "2001:7:19", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" } ], "id": 2470, "initialValue": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "hexValue": "30", "id": 2468, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "2029:1:19", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_0_by_1", "typeString": "int_const 0" }, "value": "0" } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_rational_0_by_1", "typeString": "int_const 0" } ], "id": 2467, "isConstant": false, "isLValue": false, "isPure": true, "lValueRequested": false, "nodeType": "ElementaryTypeNameExpression", "src": "2021:7:19", "typeDescriptions": { "typeIdentifier": "t_type$_t_address_$", "typeString": "type(address)" }, "typeName": "address" }, "id": 2469, "isConstant": false, "isLValue": false, "isPure": true, "kind": "typeConversion", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "2021:10:19", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "nodeType": "VariableDeclarationStatement", "src": "2001:30:19" }, { "assignments": [], "declarations": [ { "constant": false, "id": 2472, "name": "currentOwner", "nodeType": "VariableDeclaration", "scope": 2527, "src": "2041:20:19", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 2471, "name": "address", "nodeType": "ElementaryTypeName", "src": "2041:7:19", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" } ], "id": 2473, "initialValue": null, "nodeType": "VariableDeclarationStatement", "src": "2041:20:19" }, { "assignments": [], "declarations": [ { "constant": false, "id": 2475, "name": "i", "nodeType": "VariableDeclaration", "scope": 2527, "src": "2071:9:19", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 2474, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "2071:7:19", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "id": 2476, "initialValue": null, "nodeType": "VariableDeclarationStatement", "src": "2071:9:19" }, { "assignments": [ 2478 ], "declarations": [ { "constant": false, "id": 2478, "name": "threshold", "nodeType": "VariableDeclaration", "scope": 2527, "src": "2090:17:19", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 2477, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "2090:7:19", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "id": 2484, "initialValue": { "argumentTypes": null, "arguments": [], "expression": { "argumentTypes": [], "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 2480, "name": "manager", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 900, "src": "2123:7:19", "typeDescriptions": { "typeIdentifier": "t_contract$_ModuleManager_$1212", "typeString": "contract ModuleManager" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_contract$_ModuleManager_$1212", "typeString": "contract ModuleManager" } ], "id": 2479, "name": "OwnerManager", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 1652, "src": "2110:12:19", "typeDescriptions": { "typeIdentifier": "t_type$_t_contract$_OwnerManager_$1652_$", "typeString": "type(contract OwnerManager)" } }, "id": 2481, "isConstant": false, "isLValue": false, "isPure": false, "kind": "typeConversion", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "2110:21:19", "typeDescriptions": { "typeIdentifier": "t_contract$_OwnerManager_$1652", "typeString": "contract OwnerManager" } }, "id": 2482, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "getThreshold", "nodeType": "MemberAccess", "referencedDeclaration": 1588, "src": "2110:34:19", "typeDescriptions": { "typeIdentifier": "t_function_external_view$__$returns$_t_uint256_$", "typeString": "function () view external returns (uint256)" } }, "id": 2483, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "2110:36:19", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "VariableDeclarationStatement", "src": "2090:56:19" }, { "body": { "id": 2524, "nodeType": "Block", "src": "2230:315:19", "statements": [ { "expression": { "argumentTypes": null, "id": 2501, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "argumentTypes": null, "id": 2495, "name": "currentOwner", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2472, "src": "2244:12:19", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "nodeType": "Assignment", "operator": "=", "rightHandSide": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 2497, "name": "transactionHash", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2460, "src": "2270:15:19", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } }, { "argumentTypes": null, "id": 2498, "name": "signatures", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2462, "src": "2287:10:19", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } 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