{ "contractName": "StateChannelModule", "abi": [ { "constant": true, "inputs": [], "name": "manager", "outputs": [ { "name": "", "type": "address" } ], "payable": false, "stateMutability": "view", "type": "function" }, { "constant": true, "inputs": [ { "name": "txHash", "type": "bytes32" }, { "name": "messageSignature", "type": "bytes" }, { "name": "pos", "type": "uint256" } ], "name": "recoverKey", "outputs": [ { "name": "", "type": "address" } ], "payable": false, "stateMutability": "pure", "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": "signatures", "type": "bytes" }, { "name": "pos", "type": "uint256" } ], "name": "signatureSplit", "outputs": [ { "name": "v", "type": "uint8" }, { "name": "r", "type": "bytes32" }, { "name": "s", "type": "bytes32" } ], "payable": false, "stateMutability": "pure", "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": [], "name": "setup", "outputs": [], "payable": false, "stateMutability": "nonpayable", "type": "function" }, { "constant": false, "inputs": [ { "name": "to", "type": "address" }, { "name": "value", "type": "uint256" }, { "name": "data", "type": "bytes" }, { "name": "operation", "type": "uint8" }, { "name": "nonce", "type": "uint256" }, { "name": "signatures", "type": "bytes" } ], "name": "execTransaction", "outputs": [], "payable": false, "stateMutability": "nonpayable", "type": "function" }, { "constant": true, "inputs": [ { "name": "to", "type": "address" }, { "name": "value", "type": "uint256" }, { "name": "data", "type": "bytes" }, { "name": "operation", "type": "uint8" }, { "name": "nonce", "type": "uint256" } ], "name": "getTransactionHash", "outputs": [ { "name": "", "type": "bytes32" } ], "payable": false, "stateMutability": "view", "type": "function" } ], "bytecode": 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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 uint8 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": [ 1758 ] }, "id": 1759, "nodeType": "SourceUnit", "nodes": [ { "id": 1573, "literals": [ "solidity", "0.4", ".24" ], "nodeType": "PragmaDirective", "src": "0:23:11" }, { "absolutePath": "/Users/apanizo/git/gnosis/safe-contracts/contracts/Module.sol", "file": "../Module.sol", "id": 1574, "nodeType": "ImportDirective", "scope": 1759, "sourceUnit": 652, "src": "24:23:11", "symbolAliases": [], "unitAlias": "" }, { "absolutePath": "/Users/apanizo/git/gnosis/safe-contracts/contracts/OwnerManager.sol", "file": "../OwnerManager.sol", "id": 1575, "nodeType": "ImportDirective", "scope": 1759, "sourceUnit": 1433, "src": "48:29:11", "symbolAliases": [], "unitAlias": "" }, { "absolutePath": "/Users/apanizo/git/gnosis/safe-contracts/contracts/SignatureValidator.sol", "file": "../SignatureValidator.sol", "id": 1576, "nodeType": "ImportDirective", "scope": 1759, "sourceUnit": 1506, "src": "78:35:11", "symbolAliases": [], "unitAlias": "" }, { "baseContracts": [ { "arguments": null, "baseName": { "contractScope": null, "id": 1577, "name": "Module", "nodeType": "UserDefinedTypeName", "referencedDeclaration": 651, "src": "336:6:11", "typeDescriptions": { "typeIdentifier": "t_contract$_Module_$651", "typeString": "contract Module" } }, "id": 1578, "nodeType": "InheritanceSpecifier", "src": "336:6:11" }, { "arguments": null, "baseName": { "contractScope": null, "id": 1579, "name": "SignatureValidator", "nodeType": "UserDefinedTypeName", "referencedDeclaration": 1505, "src": "344:18:11", "typeDescriptions": { "typeIdentifier": "t_contract$_SignatureValidator_$1505", "typeString": "contract SignatureValidator" } }, "id": 1580, "nodeType": "InheritanceSpecifier", "src": "344:18:11" } ], "contractDependencies": [ 608, 651, 1449, 1505 ], "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": 1758, "linearizedBaseContracts": [ 1758, 1505, 651, 608, 1449 ], "name": "StateChannelModule", "nodeType": "ContractDefinition", "nodes": [ { "constant": true, "id": 1583, "name": "NAME", "nodeType": "VariableDeclaration", "scope": 1758, "src": "370:52:11", "stateVariable": true, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_string_memory", "typeString": "string" }, "typeName": { "id": 1581, "name": "string", "nodeType": "ElementaryTypeName", "src": "370:6:11", "typeDescriptions": { "typeIdentifier": "t_string_storage_ptr", "typeString": "string" } }, "value": { "argumentTypes": null, "hexValue": "5374617465204368616e6e656c204d6f64756c65", "id": 1582, "isConstant": false, "isLValue": false, "isPure": true, "kind": "string", "lValueRequested": false, "nodeType": "Literal", "src": "400:22:11", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_stringliteral_e66fa361bdba11103aaf2321b03707a79b393abf1f410f3f609398777fd3a713", "typeString": "literal_string \"State Channel Module\"" }, "value": "State Channel Module" }, "visibility": "public" }, { "constant": true, "id": 1586, "name": "VERSION", "nodeType": "VariableDeclaration", "scope": 1758, "src": "428:40:11", "stateVariable": true, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_string_memory", "typeString": "string" }, "typeName": { "id": 1584, "name": "string", "nodeType": "ElementaryTypeName", "src": "428:6:11", "typeDescriptions": { "typeIdentifier": "t_string_storage_ptr", "typeString": "string" } }, "value": { "argumentTypes": null, "hexValue": "302e302e31", "id": 1585, "isConstant": false, "isLValue": false, "isPure": true, "kind": "string", "lValueRequested": false, "nodeType": "Literal", "src": "461:7:11", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_stringliteral_ae209a0b48f21c054280f2455d32cf309387644879d9acbd8ffc199163811885", "typeString": "literal_string \"0.0.1\"" }, "value": "0.0.1" }, "visibility": "public" }, { "constant": false, "id": 1590, "name": "isExecuted", "nodeType": "VariableDeclaration", "scope": 1758, "src": "566:46:11", "stateVariable": true, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_bytes32_$_t_uint256_$", "typeString": "mapping(bytes32 => uint256)" }, "typeName": { "id": 1589, "keyType": { "id": 1587, "name": "bytes32", "nodeType": "ElementaryTypeName", "src": "575:7:11", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } }, "nodeType": "Mapping", "src": "566:28:11", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_bytes32_$_t_uint256_$", "typeString": "mapping(bytes32 => uint256)" }, "valueType": { "id": 1588, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "586:7:11", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } }, "value": null, "visibility": "public" }, { "body": { "id": 1596, "nodeType": "Block", "src": "696:29:11", "statements": [ { "expression": { "argumentTypes": null, "arguments": [], "expression": { "argumentTypes": [], "id": 1593, "name": "setManager", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 650, "src": "706:10:11", "typeDescriptions": { "typeIdentifier": "t_function_internal_nonpayable$__$returns$__$", "typeString": "function ()" } }, "id": 1594, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "706:12:11", "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 1595, "nodeType": "ExpressionStatement", "src": "706:12:11" } ] }, "documentation": "@dev Setup function sets manager", "id": 1597, "implemented": true, "isConstructor": false, "isDeclaredConst": false, "modifiers": [], "name": "setup", "nodeType": "FunctionDefinition", "parameters": { "id": 1591, "nodeType": "ParameterList", "parameters": [], "src": "674:2:11" }, "payable": false, "returnParameters": { "id": 1592, "nodeType": "ParameterList", "parameters": [], "src": "696:0:11" }, "scope": 1758, "src": "660:65:11", "stateMutability": "nonpayable", "superFunction": null, "visibility": "public" }, { "body": { "id": 1653, "nodeType": "Block", "src": "1390:434:11", "statements": [ { "assignments": [ 1613 ], "declarations": [ { "constant": false, "id": 1613, "name": "transactionHash", "nodeType": "VariableDeclaration", "scope": 1654, "src": "1400:23:11", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" }, "typeName": { "id": 1612, "name": "bytes32", "nodeType": "ElementaryTypeName", "src": "1400:7:11", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } }, "value": null, 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"1462:9:11", "typeDescriptions": { "typeIdentifier": "t_enum$_Operation_$5", "typeString": "enum Enum.Operation" } }, { "argumentTypes": null, "id": 1619, "name": "nonce", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 1607, "src": "1473:5:11", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_address", "typeString": "address" }, { "typeIdentifier": "t_uint256", "typeString": "uint256" }, { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" }, { "typeIdentifier": "t_enum$_Operation_$5", "typeString": "enum Enum.Operation" }, { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "id": 1614, "name": "getTransactionHash", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 1757, "src": "1426:18:11", "typeDescriptions": { "typeIdentifier": "t_function_internal_view$_t_address_$_t_uint256_$_t_bytes_memory_ptr_$_t_enum$_Operation_$5_$_t_uint256_$returns$_t_bytes32_$", "typeString": "function (address,uint256,bytes memory,enum Enum.Operation,uint256) view returns (bytes32)" } }, "id": 1620, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "1426:53:11", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } }, "nodeType": "VariableDeclarationStatement", "src": "1400:79:11" }, { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "commonType": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "id": 1627, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "id": 1623, "name": "isExecuted", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 1590, "src": "1497:10:11", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_bytes32_$_t_uint256_$", "typeString": "mapping(bytes32 => uint256)" } }, "id": 1625, "indexExpression": { "argumentTypes": null, "id": 1624, "name": "transactionHash", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 1613, "src": "1508:15:11", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "nodeType": "IndexAccess", "src": "1497:27:11", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "BinaryOperation", "operator": "==", "rightExpression": { "argumentTypes": null, "hexValue": "30", "id": 1626, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "1528:1:11", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_0_by_1", "typeString": "int_const 0" }, "value": "0" }, "src": "1497:32:11", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, { "argumentTypes": null, "hexValue": "5472616e73616374696f6e20616c7265616479206578656375746564", "id": 1628, "isConstant": false, "isLValue": false, "isPure": true, "kind": "string", "lValueRequested": false, "nodeType": "Literal", "src": "1531:30:11", "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": 1622, "name": "require", "nodeType": "Identifier", "overloadedDeclarations": [ 1776, 1777 ], "referencedDeclaration": 1777, "src": "1489:7:11", "typeDescriptions": { "typeIdentifier": "t_function_require_pure$_t_bool_$_t_string_memory_ptr_$returns$__$", "typeString": "function (bool,string memory) pure" } }, "id": 1629, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "1489:73:11", "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 1630, "nodeType": "ExpressionStatement", "src": "1489:73:11" }, { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 1632, "name": "transactionHash", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 1613, "src": "1582:15:11", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } }, { "argumentTypes": null, "id": 1633, "name": "signatures", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 1609, "src": "1599:10:11", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_bytes32", "typeString": "bytes32" }, { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } ], "id": 1631, "name": "checkHash", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 1723, "src": "1572:9:11", "typeDescriptions": { "typeIdentifier": "t_function_internal_view$_t_bytes32_$_t_bytes_memory_ptr_$returns$__$", "typeString": "function (bytes32,bytes memory) view" } }, "id": 1634, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "1572:38:11", "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 1635, "nodeType": "ExpressionStatement", "src": "1572:38:11" }, { "expression": { "argumentTypes": null, "id": 1640, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "id": 1636, "name": "isExecuted", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 1590, "src": "1673:10:11", "typeDescriptions": { "typeIdentifier": "t_mapping$_t_bytes32_$_t_uint256_$", "typeString": "mapping(bytes32 => uint256)" } }, "id": 1638, "indexExpression": { "argumentTypes": null, "id": 1637, "name": "transactionHash", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 1613, "src": "1684:15:11", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": true, "nodeType": "IndexAccess", "src": "1673:27:11", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "Assignment", "operator": "=", "rightHandSide": { "argumentTypes": null, "hexValue": "31", "id": 1639, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "1703:1:11", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_1_by_1", "typeString": "int_const 1" }, "value": "1" }, "src": "1673:31:11", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "id": 1641, "nodeType": "ExpressionStatement", "src": "1673:31:11" }, { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 1645, "name": "to", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 1599, "src": "1756:2:11", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, { "argumentTypes": null, "id": 1646, "name": "value", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 1601, "src": "1760:5:11", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, { "argumentTypes": null, "id": 1647, "name": "data", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 1603, "src": "1767:4:11", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } }, { "argumentTypes": null, "id": 1648, "name": "operation", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 1605, "src": "1773:9:11", "typeDescriptions": { "typeIdentifier": "t_enum$_Operation_$5", "typeString": "enum Enum.Operation" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_address", "typeString": "address" }, { "typeIdentifier": "t_uint256", "typeString": "uint256" }, { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" }, { "typeIdentifier": "t_enum$_Operation_$5", "typeString": "enum Enum.Operation" } ], "expression": { "argumentTypes": null, "id": 1643, "name": "manager", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 616, "src": "1722:7:11", "typeDescriptions": { "typeIdentifier": "t_contract$_ModuleManager_$1022", "typeString": "contract ModuleManager" } }, "id": 1644, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "execTransactionFromModule", "nodeType": "MemberAccess", "referencedDeclaration": 849, "src": "1722:33:11", "typeDescriptions": { "typeIdentifier": "t_function_external_nonpayable$_t_address_$_t_uint256_$_t_bytes_memory_ptr_$_t_enum$_Operation_$5_$returns$_t_bool_$", "typeString": "function (address,uint256,bytes memory,enum Enum.Operation) external returns (bool)" } }, "id": 1649, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "1722:61:11", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, { "argumentTypes": null, "hexValue": "436f756c64206e6f742065786563757465207472616e73616374696f6e", "id": 1650, "isConstant": false, "isLValue": false, "isPure": true, "kind": "string", "lValueRequested": false, "nodeType": "Literal", "src": "1785:31:11", "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": 1642, "name": "require", "nodeType": "Identifier", "overloadedDeclarations": [ 1776, 1777 ], "referencedDeclaration": 1777, "src": "1714:7:11", "typeDescriptions": { "typeIdentifier": "t_function_require_pure$_t_bool_$_t_string_memory_ptr_$returns$__$", "typeString": "function (bool,string memory) pure" } }, "id": 1651, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "1714:103:11", "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 1652, "nodeType": "ExpressionStatement", "src": "1714:103:11" } ] }, "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": 1654, "implemented": true, "isConstructor": false, "isDeclaredConst": false, "modifiers": [], "name": "execTransaction", "nodeType": "FunctionDefinition", "parameters": { "id": 1610, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 1599, "name": "to", "nodeType": "VariableDeclaration", "scope": 1654, "src": "1224:10:11", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 1598, "name": "address", "nodeType": "ElementaryTypeName", "src": "1224:7:11", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 1601, "name": "value", "nodeType": "VariableDeclaration", "scope": 1654, "src": "1245:13:11", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 1600, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "1245:7:11", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 1603, "name": "data", "nodeType": "VariableDeclaration", "scope": 1654, "src": "1269:10:11", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes" }, "typeName": { "id": 1602, "name": "bytes", "nodeType": "ElementaryTypeName", "src": "1269:5:11", "typeDescriptions": { "typeIdentifier": "t_bytes_storage_ptr", "typeString": "bytes" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 1605, "name": "operation", "nodeType": "VariableDeclaration", "scope": 1654, "src": "1290:24:11", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_enum$_Operation_$5", "typeString": "enum Enum.Operation" }, "typeName": { "contractScope": null, "id": 1604, "name": "Enum.Operation", "nodeType": "UserDefinedTypeName", "referencedDeclaration": 5, "src": "1290:14:11", "typeDescriptions": { "typeIdentifier": "t_enum$_Operation_$5", "typeString": "enum Enum.Operation" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 1607, "name": "nonce", "nodeType": "VariableDeclaration", "scope": 1654, "src": "1325:13:11", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 1606, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "1325:7:11", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 1609, "name": "signatures", "nodeType": "VariableDeclaration", "scope": 1654, "src": "1348:16:11", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes" }, "typeName": { "id": 1608, "name": "bytes", "nodeType": "ElementaryTypeName", "src": "1348:5:11", "typeDescriptions": { "typeIdentifier": "t_bytes_storage_ptr", "typeString": "bytes" } }, "value": null, "visibility": "internal" } ], "src": "1214:156:11" }, "payable": false, "returnParameters": { "id": 1611, "nodeType": "ParameterList", "parameters": [], "src": "1390:0:11" }, "scope": 1758, "src": "1190:634:11", "stateMutability": "nonpayable", "superFunction": null, "visibility": "public" }, { "body": { "id": 1722, "nodeType": "Block", "src": "1926:610:11", "statements": [ { "assignments": [ 1662 ], "declarations": [ { "constant": false, "id": 1662, "name": "lastOwner", "nodeType": "VariableDeclaration", "scope": 1723, "src": "1988:17:11", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 1661, "name": "address", "nodeType": "ElementaryTypeName", "src": "1988:7:11", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" } ], "id": 1666, "initialValue": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "hexValue": "30", "id": 1664, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "2016:1:11", "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": 1663, "isConstant": false, "isLValue": false, "isPure": true, "lValueRequested": false, "nodeType": "ElementaryTypeNameExpression", "src": "2008:7:11", "typeDescriptions": { "typeIdentifier": "t_type$_t_address_$", "typeString": "type(address)" }, "typeName": "address" }, "id": 1665, "isConstant": false, "isLValue": false, "isPure": true, "kind": "typeConversion", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "2008:10:11", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "nodeType": "VariableDeclarationStatement", "src": "1988:30:11" }, { "assignments": [], "declarations": [ { "constant": false, "id": 1668, "name": "currentOwner", "nodeType": "VariableDeclaration", "scope": 1723, "src": "2028:20:11", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 1667, "name": "address", "nodeType": "ElementaryTypeName", "src": "2028:7:11", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" } ], "id": 1669, "initialValue": null, "nodeType": "VariableDeclarationStatement", "src": "2028:20:11" }, { "assignments": [], "declarations": [ { "constant": false, "id": 1671, "name": "i", "nodeType": "VariableDeclaration", "scope": 1723, "src": "2058:9:11", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 1670, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "2058:7:11", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "id": 1672, "initialValue": null, "nodeType": "VariableDeclarationStatement", "src": "2058:9:11" }, { "assignments": [ 1674 ], "declarations": [ { "constant": false, "id": 1674, "name": "threshold", "nodeType": "VariableDeclaration", "scope": 1723, "src": "2077:15:11", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint8", "typeString": "uint8" }, "typeName": { "id": 1673, "name": "uint8", "nodeType": "ElementaryTypeName", "src": "2077:5:11", "typeDescriptions": { "typeIdentifier": "t_uint8", "typeString": "uint8" } }, "value": null, "visibility": "internal" } ], "id": 1680, "initialValue": { "argumentTypes": null, "arguments": [], "expression": { "argumentTypes": [], "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 1676, "name": "manager", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 616, "src": "2108:7:11", "typeDescriptions": { "typeIdentifier": "t_contract$_ModuleManager_$1022", "typeString": "contract ModuleManager" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_contract$_ModuleManager_$1022", "typeString": "contract ModuleManager" } ], "id": 1675, "name": "OwnerManager", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 1432, "src": "2095:12:11", "typeDescriptions": { "typeIdentifier": "t_type$_t_contract$_OwnerManager_$1432_$", "typeString": "type(contract OwnerManager)" } }, "id": 1677, "isConstant": false, "isLValue": false, "isPure": false, "kind": "typeConversion", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "2095:21:11", "typeDescriptions": { "typeIdentifier": "t_contract$_OwnerManager_$1432", "typeString": "contract OwnerManager" } }, "id": 1678, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "getThreshold", "nodeType": "MemberAccess", "referencedDeclaration": 1368, "src": "2095:34:11", "typeDescriptions": { "typeIdentifier": "t_function_external_view$__$returns$_t_uint8_$", "typeString": "function () view external returns (uint8)" } }, "id": 1679, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "2095:36:11", "typeDescriptions": { "typeIdentifier": "t_uint8", "typeString": "uint8" } }, "nodeType": "VariableDeclarationStatement", "src": "2077:54:11" }, { "body": { "id": 1720, "nodeType": "Block", "src": "2215:315:11", "statements": [ { "expression": { "argumentTypes": null, "id": 1697, "isConstant": false, "isLValue": false, "isPure": 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