{ "contractName": "Pausable", "abi": [ { "constant": true, "inputs": [], "name": "paused", "outputs": [ { "name": "", "type": "bool" } ], "payable": false, "stateMutability": "view", "type": "function" }, { "constant": false, "inputs": [], "name": "renounceOwnership", "outputs": [], "payable": false, "stateMutability": "nonpayable", "type": "function" }, { "constant": true, "inputs": [], "name": "owner", "outputs": [ { "name": "", "type": "address" } ], "payable": false, "stateMutability": "view", "type": "function" }, { "constant": false, "inputs": [ { "name": "_newOwner", "type": "address" } ], "name": "transferOwnership", "outputs": [], "payable": false, "stateMutability": "nonpayable", "type": "function" }, { "anonymous": false, "inputs": [], "name": "Pause", "type": "event" }, { "anonymous": false, "inputs": [], "name": "Unpause", "type": "event" }, { "anonymous": false, "inputs": [ { "indexed": true, "name": "previousOwner", "type": "address" } ], "name": "OwnershipRenounced", 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"source": "pragma solidity ^0.4.24;\n\n\nimport \"../ownership/Ownable.sol\";\n\n\n/**\n * @title Pausable\n * @dev Base contract which allows children to implement an emergency stop mechanism.\n */\ncontract Pausable is Ownable {\n event Pause();\n event Unpause();\n\n bool public paused = false;\n\n\n /**\n * @dev Modifier to make a function callable only when the contract is not paused.\n */\n modifier whenNotPaused() {\n require(!paused);\n _;\n }\n\n /**\n * @dev Modifier to make a function callable only when the contract is paused.\n */\n modifier whenPaused() {\n require(paused);\n _;\n }\n\n /**\n * @dev called by the owner to pause, triggers stopped state\n */\n function pause() public onlyOwner whenNotPaused {\n paused = true;\n emit Pause();\n }\n\n /**\n * @dev called by the owner to unpause, returns to normal state\n */\n function unpause() public onlyOwner whenPaused {\n paused = false;\n emit Unpause();\n }\n}\n", "sourcePath": "zeppelin-solidity/contracts/lifecycle/Pausable.sol", "ast": { "absolutePath": "zeppelin-solidity/contracts/lifecycle/Pausable.sol", "exportedSymbols": { "Pausable": [ 3942 ] }, "id": 3943, "nodeType": "SourceUnit", "nodes": [ { "id": 3884, "literals": [ "solidity", "^", "0.4", ".24" ], "nodeType": "PragmaDirective", "src": "0:24:19" }, { "absolutePath": "zeppelin-solidity/contracts/ownership/Ownable.sol", "file": "../ownership/Ownable.sol", "id": 3885, "nodeType": "ImportDirective", "scope": 3943, "sourceUnit": 4123, "src": "27:34:19", "symbolAliases": [], "unitAlias": "" }, { "baseContracts": [ { "arguments": null, "baseName": { "contractScope": null, "id": 3886, "name": "Ownable", "nodeType": "UserDefinedTypeName", "referencedDeclaration": 4122, "src": "198:7:19", "typeDescriptions": { "typeIdentifier": "t_contract$_Ownable_$4122", "typeString": "contract Ownable" } }, "id": 3887, "nodeType": "InheritanceSpecifier", "src": "198:7:19" } ], "contractDependencies": [ 4122 ], "contractKind": "contract", "documentation": "@title Pausable\n@dev Base contract which allows children to implement an emergency stop mechanism.", "fullyImplemented": true, "id": 3942, "linearizedBaseContracts": [ 3942, 4122 ], "name": "Pausable", "nodeType": "ContractDefinition", "nodes": [ { "anonymous": false, "documentation": null, "id": 3889, "name": "Pause", "nodeType": "EventDefinition", "parameters": { "id": 3888, "nodeType": "ParameterList", "parameters": [], "src": "221:2:19" }, "src": "210:14:19" }, { "anonymous": false, "documentation": null, "id": 3891, "name": "Unpause", "nodeType": "EventDefinition", "parameters": { "id": 3890, "nodeType": "ParameterList", "parameters": [], "src": "240:2:19" }, "src": "227:16:19" }, { "constant": false, "id": 3894, "name": "paused", "nodeType": "VariableDeclaration", "scope": 3942, "src": "247:26:19", "stateVariable": true, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" }, "typeName": { "id": 3892, "name": "bool", "nodeType": "ElementaryTypeName", "src": "247:4:19", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "value": { "argumentTypes": null, "hexValue": "66616c7365", "id": 3893, "isConstant": false, "isLValue": false, "isPure": true, "kind": "bool", "lValueRequested": false, "nodeType": "Literal", "src": "268:5:19", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" }, "value": "false" }, "visibility": "public" }, { "body": { "id": 3902, "nodeType": "Block", "src": "401:34:19", "statements": [ { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 3898, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "nodeType": "UnaryOperation", "operator": "!", "prefix": true, "src": "415:7:19", "subExpression": { "argumentTypes": null, "id": 3897, "name": "paused", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3894, "src": "416:6:19", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_bool", "typeString": "bool" } ], "id": 3896, "name": "require", "nodeType": "Identifier", "overloadedDeclarations": [ 4919, 4920 ], "referencedDeclaration": 4919, "src": "407:7:19", "typeDescriptions": { "typeIdentifier": "t_function_require_pure$_t_bool_$returns$__$", "typeString": "function (bool) pure" } }, "id": 3899, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "407:16:19", "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 3900, "nodeType": "ExpressionStatement", "src": "407:16:19" }, { "id": 3901, "nodeType": "PlaceholderStatement", "src": "429:1:19" } ] }, "documentation": "@dev Modifier to make a function callable only when the contract is not paused.", "id": 3903, "name": "whenNotPaused", "nodeType": "ModifierDefinition", "parameters": { "id": 3895, "nodeType": "ParameterList", "parameters": [], "src": "398:2:19" }, "src": "376:59:19", "visibility": "internal" }, { "body": { "id": 3910, "nodeType": "Block", "src": "554:33:19", "statements": [ { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 3906, "name": "paused", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3894, "src": "568:6:19", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_bool", "typeString": "bool" } ], "id": 3905, "name": "require", "nodeType": "Identifier", "overloadedDeclarations": [ 4919, 4920 ], "referencedDeclaration": 4919, "src": "560:7:19", "typeDescriptions": { "typeIdentifier": 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"lValueRequested": false, "leftHandSide": { "argumentTypes": null, "id": 3918, "name": "paused", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3894, "src": "720:6:19", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "nodeType": "Assignment", "operator": "=", "rightHandSide": { "argumentTypes": null, "hexValue": "74727565", "id": 3919, "isConstant": false, "isLValue": false, "isPure": true, "kind": "bool", "lValueRequested": false, "nodeType": "Literal", "src": "729:4:19", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" }, "value": "true" }, "src": "720:13:19", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "id": 3921, "nodeType": "ExpressionStatement", "src": "720:13:19" }, { "eventCall": { "argumentTypes": null, "arguments": [], "expression": { "argumentTypes": [], "id": 3922, "name": "Pause", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3889, "src": "744:5:19", "typeDescriptions": { "typeIdentifier": "t_function_event_nonpayable$__$returns$__$", "typeString": "function ()" } }, "id": 3923, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "744:7:19", "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 3924, "nodeType": "EmitStatement", "src": "739:12:19" } ] }, "documentation": "@dev called by the owner to pause, triggers stopped state", "id": 3926, "implemented": true, "isConstructor": false, "isDeclaredConst": false, "modifiers": [ { "arguments": null, "id": 3914, "modifierName": { "argumentTypes": null, "id": 3913, "name": "onlyOwner", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4070, "src": "690:9:19", "typeDescriptions": { "typeIdentifier": "t_modifier$__$", "typeString": "modifier ()" } }, "nodeType": "ModifierInvocation", "src": "690:9:19" }, { "arguments": null, "id": 3916, "modifierName": { "argumentTypes": null, "id": 3915, "name": "whenNotPaused", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3903, "src": "700:13:19", "typeDescriptions": { "typeIdentifier": "t_modifier$__$", "typeString": "modifier ()" } }, "nodeType": "ModifierInvocation", "src": "700:13:19" } ], "name": "pause", "nodeType": "FunctionDefinition", "parameters": { "id": 3912, "nodeType": "ParameterList", "parameters": [], "src": "680:2:19" }, "payable": false, "returnParameters": { "id": 3917, "nodeType": "ParameterList", "parameters": [], "src": "714:0:19" }, "scope": 3942, "src": "666:90:19", "stateMutability": "nonpayable", "superFunction": null, "visibility": "public" }, { "body": { "id": 3940, "nodeType": "Block", "src": "885:45:19", "statements": [ { "expression": { "argumentTypes": null, "id": 3935, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "argumentTypes": null, "id": 3933, "name": "paused", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3894, "src": "891:6:19", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "nodeType": "Assignment", "operator": "=", "rightHandSide": { "argumentTypes": null, "hexValue": "66616c7365", "id": 3934, "isConstant": false, "isLValue": false, "isPure": true, "kind": "bool", "lValueRequested": false, "nodeType": "Literal", "src": "900:5:19", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" }, "value": "false" }, "src": "891:14:19", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "id": 3936, "nodeType": "ExpressionStatement", "src": "891:14:19" }, { "eventCall": { "argumentTypes": null, "arguments": [], "expression": { "argumentTypes": [], "id": 3937, "name": "Unpause", "nodeType": "Identifier", 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"modifier ()" } }, "nodeType": "ModifierInvocation", "src": "864:9:19" }, { "arguments": null, "id": 3931, "modifierName": { "argumentTypes": null, "id": 3930, "name": "whenPaused", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3911, "src": "874:10:19", "typeDescriptions": { "typeIdentifier": "t_modifier$__$", "typeString": "modifier ()" } }, "nodeType": "ModifierInvocation", "src": "874:10:19" } ], "name": "unpause", "nodeType": "FunctionDefinition", "parameters": { "id": 3927, "nodeType": "ParameterList", "parameters": [], "src": "854:2:19" }, "payable": false, "returnParameters": { "id": 3932, "nodeType": "ParameterList", "parameters": [], "src": "885:0:19" }, "scope": 3942, "src": "838:92:19", "stateMutability": "nonpayable", "superFunction": null, "visibility": "public" } ], "scope": 3943, "src": "177:755:19" } ], "src": "0:933:19" }, "legacyAST": { "absolutePath": "zeppelin-solidity/contracts/lifecycle/Pausable.sol", "exportedSymbols": { 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