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"source": "pragma solidity ^0.4.24;\n\nimport \"./OracleBase.sol\";\nimport \"zos-lib/contracts/Initializable.sol\";\n\n/**\n * @title BasicOracle\n * @dev Extends OracleBase to allow the result to be set by a single data source\n */\ncontract BasicOracle is Initializable, OracleBase {\n\n // The address that is able to set the result\n address public dataSource;\n\n /**\n * @dev BasicOracle constructor\n * @param _dataSource The address that is able to set the result\n */\n function initialize(address _dataSource) initializer public {\n dataSource = _dataSource;\n }\n\n /**\n * @dev Sets the result of the oracle\n * @param _result The result being set\n */\n function setResult(bytes _result) public {\n require(msg.sender == dataSource, \"The caller is not the data source.\");\n _setResult(_result);\n }\n\n}\n", "sourcePath": "/Users/mfcalvanese/dev/eth/tidbit-eth/contracts/Oracles/BasicOracle.sol", "ast": { "absolutePath": "/Users/mfcalvanese/dev/eth/tidbit-eth/contracts/Oracles/BasicOracle.sol", "exportedSymbols": { "BasicOracle": [ 256 ] }, "id": 257, "nodeType": "SourceUnit", "nodes": [ { "id": 217, "literals": [ "solidity", "^", "0.4", ".24" ], "nodeType": "PragmaDirective", "src": "0:24:11" }, { "absolutePath": "/Users/mfcalvanese/dev/eth/tidbit-eth/contracts/Oracles/OracleBase.sol", "file": "./OracleBase.sol", "id": 218, "nodeType": "ImportDirective", "scope": 257, "sourceUnit": 735, "src": "26:26:11", "symbolAliases": [], "unitAlias": "" }, { "absolutePath": "zos-lib/contracts/Initializable.sol", "file": "zos-lib/contracts/Initializable.sol", "id": 219, "nodeType": "ImportDirective", "scope": 257, "sourceUnit": 3242, "src": "53:45:11", "symbolAliases": [], "unitAlias": "" }, { "baseContracts": [ { "arguments": null, "baseName": { "contractScope": null, "id": 220, "name": "Initializable", "nodeType": "UserDefinedTypeName", "referencedDeclaration": 3241, "src": "235:13:11", "typeDescriptions": { "typeIdentifier": "t_contract$_Initializable_$3241", "typeString": "contract Initializable" } }, "id": 221, "nodeType": "InheritanceSpecifier", "src": "235:13:11" }, { "arguments": null, "baseName": { "contractScope": null, "id": 222, "name": "OracleBase", "nodeType": "UserDefinedTypeName", "referencedDeclaration": 734, "src": "250:10:11", "typeDescriptions": { "typeIdentifier": "t_contract$_OracleBase_$734", "typeString": "contract OracleBase" } }, "id": 223, "nodeType": "InheritanceSpecifier", "src": "250:10:11" } ], "contractDependencies": [ 273, 734, 3241 ], "contractKind": "contract", "documentation": "@title BasicOracle\n@dev Extends OracleBase to allow the result to be set by a single data source", "fullyImplemented": true, "id": 256, "linearizedBaseContracts": [ 256, 734, 273, 3241 ], "name": "BasicOracle", "nodeType": "ContractDefinition", "nodes": [ { "constant": false, "id": 225, "name": "dataSource", "nodeType": "VariableDeclaration", "scope": 256, "src": "314:25:11", "stateVariable": true, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 224, "name": "address", "nodeType": "ElementaryTypeName", "src": "314:7:11", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "public" }, { "body": { "id": 236, "nodeType": "Block", "src": "519:35:11", "statements": [ { "expression": { "argumentTypes": null, "id": 234, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "argumentTypes": null, "id": 232, "name": "dataSource", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 225, "src": "525:10:11", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "nodeType": "Assignment", "operator": "=", "rightHandSide": { "argumentTypes": null, "id": 233, "name": "_dataSource", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 227, "src": "538:11:11", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "src": "525:24:11", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "id": 235, "nodeType": "ExpressionStatement", "src": "525:24:11" } ] }, "documentation": " @dev BasicOracle constructor\n @param _dataSource The address that is able to set the result", "id": 237, "implemented": true, "isConstructor": false, "isDeclaredConst": false, "modifiers": [ { "arguments": null, "id": 230, "modifierName": { "argumentTypes": null, "id": 229, "name": "initializer", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3222, "src": "500:11:11", "typeDescriptions": { "typeIdentifier": "t_modifier$__$", "typeString": "modifier ()" } }, "nodeType": "ModifierInvocation", "src": "500:11:11" } ], "name": "initialize", "nodeType": "FunctionDefinition", "parameters": { "id": 228, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 227, "name": "_dataSource", "nodeType": "VariableDeclaration", "scope": 237, "src": "479:19:11", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 226, "name": "address", "nodeType": "ElementaryTypeName", "src": "479:7:11", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" } ], "src": "478:21:11" }, "payable": false, "returnParameters": { "id": 231, "nodeType": "ParameterList", "parameters": [], "src": "519:0:11" }, "scope": 256, "src": "459:95:11", "stateMutability": "nonpayable", "superFunction": null, "visibility": "public" }, { "body": { "id": 254, "nodeType": "Block", "src": "692:107:11", "statements": [ { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "commonType": { "typeIdentifier": "t_address", "typeString": "address" }, "id": 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