{ "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 \"../Module.sol\";\nimport \"../OwnerManager.sol\";\nimport \"../SignatureValidator.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, SignatureValidator {\n\n string public constant NAME = \"State Channel Module\";\n string public constant VERSION = \"0.0.1\";\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": [ 3867 ] }, "id": 3868, "nodeType": "SourceUnit", "nodes": [ { "id": 3682, "literals": [ "solidity", "0.4", ".24" ], "nodeType": "PragmaDirective", "src": "0:23:22" }, { "absolutePath": "/Users/apanizo/git/gnosis/safe-contracts/contracts/Module.sol", "file": "../Module.sol", "id": 3683, "nodeType": "ImportDirective", "scope": 3868, "sourceUnit": 1862, "src": "24:23:22", "symbolAliases": [], "unitAlias": "" }, { "absolutePath": "/Users/apanizo/git/gnosis/safe-contracts/contracts/OwnerManager.sol", "file": "../OwnerManager.sol", "id": 3684, "nodeType": "ImportDirective", "scope": 3868, "sourceUnit": 2889, "src": "48:29:22", "symbolAliases": [], "unitAlias": "" }, { "absolutePath": "/Users/apanizo/git/gnosis/safe-contracts/contracts/SignatureValidator.sol", "file": "../SignatureValidator.sol", "id": 3685, "nodeType": "ImportDirective", "scope": 3868, "sourceUnit": 3122, "src": "78:35:22", "symbolAliases": [], "unitAlias": "" }, { "baseContracts": [ { "arguments": null, "baseName": { "contractScope": null, "id": 3686, "name": "Module", "nodeType": "UserDefinedTypeName", "referencedDeclaration": 1861, "src": "336:6:22", "typeDescriptions": { "typeIdentifier": "t_contract$_Module_$1861", "typeString": "contract Module" } }, "id": 3687, "nodeType": "InheritanceSpecifier", "src": "336:6:22" }, { "arguments": null, "baseName": { "contractScope": null, "id": 3688, "name": "SignatureValidator", "nodeType": "UserDefinedTypeName", "referencedDeclaration": 3121, "src": "344:18:22", "typeDescriptions": { "typeIdentifier": "t_contract$_SignatureValidator_$3121", "typeString": "contract SignatureValidator" } }, "id": 3689, "nodeType": "InheritanceSpecifier", "src": "344:18:22" } ], "contractDependencies": [ 632, 1861, 3065, 3121 ], "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": 3867, "linearizedBaseContracts": [ 3867, 3121, 1861, 632, 3065 ], "name": "StateChannelModule", "nodeType": "ContractDefinition", "nodes": [ { "constant": true, "id": 3692, "name": "NAME", "nodeType": "VariableDeclaration", "scope": 3867, "src": "370:52:22", "stateVariable": true, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_string_memory", "typeString": "string" }, "typeName": { "id": 3690, "name": "string", "nodeType": "ElementaryTypeName", "src": "370:6:22", "typeDescriptions": { "typeIdentifier": "t_string_storage_ptr", "typeString": "string" } }, "value": { "argumentTypes": null, "hexValue": "5374617465204368616e6e656c204d6f64756c65", "id": 3691, "isConstant": false, "isLValue": false, "isPure": true, "kind": "string", "lValueRequested": false, "nodeType": "Literal", "src": "400:22:22", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_stringliteral_e66fa361bdba11103aaf2321b03707a79b393abf1f410f3f609398777fd3a713", "typeString": "literal_string \"State Channel Module\"" }, "value": "State Channel Module" }, "visibility": "public" }, { "constant": true, "id": 3695, "name": "VERSION", "nodeType": "VariableDeclaration", "scope": 3867, "src": "428:40:22", "stateVariable": true, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_string_memory", "typeString": "string" }, "typeName": { "id": 3693, "name": "string", "nodeType": "ElementaryTypeName", "src": "428:6:22", "typeDescriptions": { "typeIdentifier": "t_string_storage_ptr", "typeString": "string" } }, "value": { "argumentTypes": null, "hexValue": "302e302e31", "id": 3694, "isConstant": false, "isLValue": false, "isPure": true, "kind": "string", "lValueRequested": false, "nodeType": "Literal", "src": "461:7:22", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_stringliteral_ae209a0b48f21c054280f2455d32cf309387644879d9acbd8ffc199163811885", "typeString": "literal_string \"0.0.1\"" }, "value": "0.0.1" }, "visibility": "public" }, { "constant": false, "id": 3699, "name": "isExecuted", "nodeType": "VariableDeclaration", "scope": 3867, "src": "566:46:22", "stateVariable": true, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_bytes32_$_t_uint256_$", "typeString": "mapping(bytes32 => uint256)" }, "typeName": { "id": 3698, "keyType": { "id": 3696, "name": "bytes32", "nodeType": "ElementaryTypeName", "src": "575:7:22", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } }, "nodeType": "Mapping", "src": "566:28:22", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_bytes32_$_t_uint256_$", "typeString": "mapping(bytes32 => uint256)" }, "valueType": { "id": 3697, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "586:7:22", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } }, "value": null, "visibility": "public" }, { "body": { "id": 3705, "nodeType": "Block", "src": "696:29:22", "statements": [ { "expression": { "argumentTypes": null, "arguments": [], "expression": { "argumentTypes": [], "id": 3702, "name": "setManager", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 1860, "src": "706:10:22", "typeDescriptions": { "typeIdentifier": "t_function_internal_nonpayable$__$returns$__$", "typeString": "function ()" } }, "id": 3703, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "706:12:22", "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 3704, "nodeType": "ExpressionStatement", "src": "706:12:22" } ] }, "documentation": "@dev Setup function sets manager", "id": 3706, "implemented": true, "isConstructor": false, "isDeclaredConst": false, "modifiers": [], "name": "setup", "nodeType": "FunctionDefinition", "parameters": { "id": 3700, "nodeType": "ParameterList", "parameters": [], "src": "674:2:22" }, "payable": false, "returnParameters": { "id": 3701, "nodeType": "ParameterList", "parameters": [], "src": "696:0:22" }, "scope": 3867, "src": "660:65:22", "stateMutability": "nonpayable", "superFunction": null, "visibility": "public" }, { "body": { "id": 3762, "nodeType": "Block", "src": "1390:434:22", "statements": [ { "assignments": [ 3722 ], "declarations": [ { "constant": false, "id": 3722, "name": "transactionHash", "nodeType": "VariableDeclaration", "scope": 3763, "src": "1400:23:22", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" }, "typeName": { "id": 3721, "name": "bytes32", "nodeType": "ElementaryTypeName", "src": "1400:7:22", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } }, "value": null, "visibility": "internal" } ], "id": 3730, "initialValue": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 3724, "name": "to", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3708, "src": "1445:2:22", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "argumentTypes": null, "id": 3725, "name": "value", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3710, "src": "1449:5:22", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, { "argumentTypes": null, "id": 3726, "name": "data", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3712, "src": "1456:4:22", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } }, { "argumentTypes": null, "id": 3727, "name": "operation", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3714, "src": "1462:9:22", "typeDescriptions": { "typeIdentifier": "t_enum$_Operation_$29", "typeString": "enum Enum.Operation" } }, { "argumentTypes": null, "id": 3728, "name": "nonce", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3716, "src": "1473:5:22", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_address", "typeString": "address" }, { "typeIdentifier": "t_uint256", "typeString": "uint256" }, { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" }, { "typeIdentifier": "t_enum$_Operation_$29", "typeString": "enum Enum.Operation" }, { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "id": 3723, "name": "getTransactionHash", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3866, "src": "1426:18:22", "typeDescriptions": { "typeIdentifier": "t_function_internal_view$_t_address_$_t_uint256_$_t_bytes_memory_ptr_$_t_enum$_Operation_$29_$_t_uint256_$returns$_t_bytes32_$", "typeString": "function (address,uint256,bytes memory,enum Enum.Operation,uint256) view returns (bytes32)" } }, "id": 3729, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "1426:53:22", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } }, "nodeType": "VariableDeclarationStatement", "src": "1400:79:22" }, { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "commonType": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "id": 3736, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "id": 3732, "name": "isExecuted", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3699, "src": "1497:10:22", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_bytes32_$_t_uint256_$", "typeString": "mapping(bytes32 => uint256)" } }, "id": 3734, "indexExpression": { "argumentTypes": null, "id": 3733, "name": "transactionHash", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3722, "src": "1508:15:22", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "nodeType": "IndexAccess", "src": "1497:27:22", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "BinaryOperation", "operator": "==", "rightExpression": { "argumentTypes": null, "hexValue": "30", "id": 3735, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "1528:1:22", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_0_by_1", "typeString": "int_const 0" }, "value": "0" }, "src": "1497:32:22", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, { "argumentTypes": null, "hexValue": "5472616e73616374696f6e20616c7265616479206578656375746564", "id": 3737, "isConstant": false, "isLValue": false, "isPure": true, "kind": "string", "lValueRequested": false, "nodeType": "Literal", "src": "1531:30:22", "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": 3731, "name": "require", "nodeType": "Identifier", "overloadedDeclarations": [ 4039, 4040 ], "referencedDeclaration": 4040, "src": "1489:7:22", "typeDescriptions": { "typeIdentifier": "t_function_require_pure$_t_bool_$_t_string_memory_ptr_$returns$__$", "typeString": "function (bool,string memory) pure" } }, "id": 3738, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "1489:73:22", "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 3739, "nodeType": "ExpressionStatement", "src": "1489:73:22" }, { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 3741, "name": "transactionHash", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3722, "src": "1582:15:22", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } }, { "argumentTypes": null, "id": 3742, "name": "signatures", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3718, "src": "1599:10:22", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_bytes32", "typeString": "bytes32" }, { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } ], "id": 3740, "name": "checkHash", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3832, "src": "1572:9:22", "typeDescriptions": { "typeIdentifier": "t_function_internal_view$_t_bytes32_$_t_bytes_memory_ptr_$returns$__$", "typeString": "function (bytes32,bytes memory) view" } }, "id": 3743, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "1572:38:22", "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 3744, "nodeType": "ExpressionStatement", "src": "1572:38:22" }, { "expression": { "argumentTypes": null, "id": 3749, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "id": 3745, "name": "isExecuted", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3699, "src": "1673:10:22", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_bytes32_$_t_uint256_$", "typeString": "mapping(bytes32 => uint256)" } }, "id": 3747, "indexExpression": { "argumentTypes": null, "id": 3746, "name": "transactionHash", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3722, "src": "1684:15:22", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": true, "nodeType": "IndexAccess", "src": "1673:27:22", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "Assignment", "operator": "=", "rightHandSide": { "argumentTypes": null, "hexValue": "31", "id": 3748, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "1703:1:22", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_1_by_1", "typeString": "int_const 1" }, "value": "1" }, "src": "1673:31:22", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "id": 3750, "nodeType": "ExpressionStatement", "src": "1673:31:22" }, { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 3754, "name": "to", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3708, "src": "1756:2:22", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "argumentTypes": null, "id": 3755, "name": "value", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3710, "src": "1760:5:22", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, { "argumentTypes": null, "id": 3756, "name": "data", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3712, "src": "1767:4:22", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } }, { "argumentTypes": null, "id": 3757, "name": "operation", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3714, "src": "1773:9:22", "typeDescriptions": { "typeIdentifier": "t_enum$_Operation_$29", "typeString": "enum Enum.Operation" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_address", "typeString": "address" }, { "typeIdentifier": "t_uint256", "typeString": "uint256" }, { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" }, { "typeIdentifier": "t_enum$_Operation_$29", "typeString": "enum Enum.Operation" } ], "expression": { "argumentTypes": null, "id": 3752, "name": "manager", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 1826, "src": "1722:7:22", "typeDescriptions": { "typeIdentifier": "t_contract$_ModuleManager_$2232", "typeString": "contract ModuleManager" } }, "id": 3753, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "execTransactionFromModule", "nodeType": "MemberAccess", "referencedDeclaration": 2059, "src": "1722:33:22", "typeDescriptions": { "typeIdentifier": "t_function_external_nonpayable$_t_address_$_t_uint256_$_t_bytes_memory_ptr_$_t_enum$_Operation_$29_$returns$_t_bool_$", "typeString": "function (address,uint256,bytes memory,enum Enum.Operation) external returns (bool)" } }, "id": 3758, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "1722:61:22", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, { "argumentTypes": null, "hexValue": "436f756c64206e6f742065786563757465207472616e73616374696f6e", "id": 3759, "isConstant": false, "isLValue": false, "isPure": true, "kind": "string", "lValueRequested": false, "nodeType": "Literal", "src": "1785:31:22", "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": 3751, "name": "require", "nodeType": "Identifier", "overloadedDeclarations": [ 4039, 4040 ], "referencedDeclaration": 4040, "src": "1714:7:22", "typeDescriptions": { "typeIdentifier": "t_function_require_pure$_t_bool_$_t_string_memory_ptr_$returns$__$", "typeString": "function (bool,string memory) pure" } }, "id": 3760, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "1714:103:22", "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 3761, "nodeType": "ExpressionStatement", "src": "1714:103:22" } ] }, "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": 3763, "implemented": true, "isConstructor": false, "isDeclaredConst": false, "modifiers": [], "name": "execTransaction", "nodeType": "FunctionDefinition", "parameters": { "id": 3719, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 3708, "name": "to", "nodeType": "VariableDeclaration", "scope": 3763, "src": "1224:10:22", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 3707, "name": "address", "nodeType": "ElementaryTypeName", "src": "1224:7:22", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 3710, "name": "value", "nodeType": "VariableDeclaration", "scope": 3763, "src": "1245:13:22", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 3709, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "1245:7:22", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 3712, "name": "data", "nodeType": "VariableDeclaration", "scope": 3763, "src": "1269:10:22", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes" }, "typeName": { "id": 3711, "name": "bytes", "nodeType": "ElementaryTypeName", "src": "1269:5:22", "typeDescriptions": { "typeIdentifier": "t_bytes_storage_ptr", "typeString": "bytes" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 3714, "name": "operation", "nodeType": "VariableDeclaration", "scope": 3763, "src": "1290:24:22", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_enum$_Operation_$29", "typeString": "enum Enum.Operation" }, "typeName": { "contractScope": null, "id": 3713, "name": "Enum.Operation", "nodeType": "UserDefinedTypeName", "referencedDeclaration": 29, "src": "1290:14:22", "typeDescriptions": { "typeIdentifier": "t_enum$_Operation_$29", "typeString": "enum Enum.Operation" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 3716, "name": "nonce", "nodeType": "VariableDeclaration", "scope": 3763, "src": "1325:13:22", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 3715, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "1325:7:22", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 3718, "name": "signatures", "nodeType": "VariableDeclaration", "scope": 3763, "src": "1348:16:22", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes" }, "typeName": { "id": 3717, "name": "bytes", "nodeType": "ElementaryTypeName", "src": "1348:5:22", "typeDescriptions": { "typeIdentifier": "t_bytes_storage_ptr", "typeString": "bytes" } }, "value": null, "visibility": "internal" } ], "src": "1214:156:22" }, "payable": false, "returnParameters": { "id": 3720, "nodeType": "ParameterList", "parameters": [], "src": "1390:0:22" }, "scope": 3867, "src": "1190:634:22", "stateMutability": "nonpayable", "superFunction": null, "visibility": "public" }, { "body": { "id": 3831, "nodeType": "Block", "src": "1926:612:22", "statements": [ { "assignments": [ 3771 ], "declarations": [ { "constant": false, "id": 3771, "name": "lastOwner", "nodeType": "VariableDeclaration", "scope": 3832, "src": "1988:17:22", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 3770, "name": "address", "nodeType": "ElementaryTypeName", "src": "1988:7:22", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" } ], "id": 3775, "initialValue": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "hexValue": "30", "id": 3773, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "2016:1:22", "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": 3772, "isConstant": false, "isLValue": false, "isPure": true, "lValueRequested": false, "nodeType": "ElementaryTypeNameExpression", "src": "2008:7:22", "typeDescriptions": { "typeIdentifier": "t_type$_t_address_$", "typeString": "type(address)" }, "typeName": "address" }, "id": 3774, "isConstant": false, "isLValue": false, "isPure": true, "kind": "typeConversion", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "2008:10:22", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "nodeType": "VariableDeclarationStatement", "src": "1988:30:22" }, { "assignments": [], "declarations": [ { "constant": false, "id": 3777, "name": "currentOwner", "nodeType": "VariableDeclaration", "scope": 3832, "src": "2028:20:22", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 3776, "name": "address", "nodeType": "ElementaryTypeName", "src": "2028:7:22", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" } ], "id": 3778, "initialValue": null, "nodeType": "VariableDeclarationStatement", "src": "2028:20:22" }, { "assignments": [], "declarations": [ { "constant": false, "id": 3780, "name": "i", "nodeType": "VariableDeclaration", "scope": 3832, "src": "2058:9:22", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 3779, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "2058:7:22", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "id": 3781, "initialValue": null, "nodeType": "VariableDeclarationStatement", "src": "2058:9:22" }, { "assignments": [ 3783 ], "declarations": [ { "constant": false, "id": 3783, "name": "threshold", "nodeType": "VariableDeclaration", "scope": 3832, "src": "2077:17:22", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 3782, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "2077:7:22", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "id": 3789, "initialValue": { "argumentTypes": null, "arguments": [], "expression": { "argumentTypes": [], "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 3785, "name": "manager", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 1826, "src": "2110:7:22", "typeDescriptions": { "typeIdentifier": "t_contract$_ModuleManager_$2232", "typeString": "contract ModuleManager" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_contract$_ModuleManager_$2232", "typeString": "contract ModuleManager" } ], "id": 3784, "name": "OwnerManager", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 2888, "src": "2097:12:22", "typeDescriptions": { "typeIdentifier": "t_type$_t_contract$_OwnerManager_$2888_$", "typeString": "type(contract OwnerManager)" } }, "id": 3786, "isConstant": false, "isLValue": false, "isPure": false, "kind": "typeConversion", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "2097:21:22", "typeDescriptions": { "typeIdentifier": "t_contract$_OwnerManager_$2888", "typeString": "contract OwnerManager" } }, "id": 3787, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "getThreshold", "nodeType": "MemberAccess", "referencedDeclaration": 2824, "src": "2097:34:22", "typeDescriptions": { "typeIdentifier": "t_function_external_view$__$returns$_t_uint256_$", "typeString": "function () view external returns (uint256)" } }, "id": 3788, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "2097:36:22", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "VariableDeclarationStatement", "src": "2077:56:22" }, { "body": { "id": 3829, "nodeType": "Block", "src": "2217:315:22", "statements": [ { "expression": { "argumentTypes": null, "id": 3806, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "argumentTypes": null, "id": 3800, "name": "currentOwner", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3777, "src": "2231:12:22", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "nodeType": "Assignment", "operator": "=", "rightHandSide": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 3802, "name": "transactionHash", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3765, "src": "2257:15:22", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } }, { "argumentTypes": null, "id": 3803, "name": "signatures", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3767, "src": "2274:10:22", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } 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