{ "contractName": "Initializable", "abi": [ { "constant": true, "inputs": [], "name": "getInitializationBlock", "outputs": [ { "name": "", "type": "uint256" } ], "payable": false, "stateMutability": "view", "type": "function" }, { "constant": true, "inputs": [], "name": "hasInitialized", "outputs": [ { "name": "", "type": "bool" } ], "payable": false, "stateMutability": "view", "type": "function" } ], "bytecode": 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"144:1758:26:-;;;;;;;;;;;;;;;;;;;;;;;;;;;;;1136:208;;8:9:-1;5:2;;;30:1;27;20:12;5:2;1136:208:26;;;;;;;;;;;;;;;;;;;;;;;;;;;889:137;;8:9:-1;5:2;;;30:1;27;20:12;5:2;889:137:26;;;;;;;;;;;;;;;;;;;;;;;1136:208;1183:4;1199:27;1229:24;:22;:24::i;:::-;1199:54;;1293:1;1270:19;:24;;:67;;;;;1318:19;1298:16;:14;:16::i;:::-;:39;;1270:67;1263:74;;1136:208;;:::o;889:137::-;944:7;970:49;353:66;970:29;;:47;;;;:49::i;:::-;963:56;;889:137;:::o;347:94:29:-;396:7;422:12;415:19;;347:94;:::o;519:134:31:-;587:12;636:8;630:15;622:23;;620:27;;;:::o", "source": "/*\n * SPDX-License-Identitifer: MIT\n */\n\npragma solidity ^0.4.24;\n\nimport \"./UnstructuredStorage.sol\";\nimport \"../common/TimeHelpers.sol\";\n\n\ncontract Initializable is TimeHelpers {\n using UnstructuredStorage for bytes32;\n\n // keccak256(\"aragonOS.initializable.initializationBlock\")\n bytes32 internal constant INITIALIZATION_BLOCK_POSITION = 0xebb05b386a8d34882b8711d156f463690983dc47815980fb82aeeff1aa43579e;\n\n string private constant ERROR_ALREADY_INITIALIZED = \"INIT_ALREADY_INITIALIZED\";\n string private constant ERROR_NOT_INITIALIZED = \"INIT_NOT_INITIALIZED\";\n\n modifier onlyInit {\n require(getInitializationBlock() == 0, ERROR_ALREADY_INITIALIZED);\n _;\n }\n\n modifier isInitialized {\n require(hasInitialized(), ERROR_NOT_INITIALIZED);\n _;\n }\n\n /**\n * @return Block number in which the contract was initialized\n */\n function getInitializationBlock() public view returns (uint256) {\n return INITIALIZATION_BLOCK_POSITION.getStorageUint256();\n }\n\n /**\n * @return Whether the contract has been initialized by the time of the current block\n */\n function hasInitialized() public view returns (bool) {\n uint256 initializationBlock = getInitializationBlock();\n return initializationBlock != 0 && getBlockNumber() >= initializationBlock;\n }\n\n /**\n * @dev Function to be called by top level contract after initialization has finished.\n */\n function initialized() internal onlyInit {\n INITIALIZATION_BLOCK_POSITION.setStorageUint256(getBlockNumber());\n }\n\n /**\n * @dev Function to be called by top level contract after initialization to enable the contract\n * at a future block number rather than immediately.\n */\n function initializedAt(uint256 _blockNumber) internal onlyInit {\n INITIALIZATION_BLOCK_POSITION.setStorageUint256(_blockNumber);\n }\n}\n", "sourcePath": "@aragon/os/contracts/common/Initializable.sol", "ast": { "absolutePath": "@aragon/os/contracts/common/Initializable.sol", "exportedSymbols": { "Initializable": [ 8761 ] }, "id": 8762, "nodeType": "SourceUnit", "nodes": [ { "id": 8665, "literals": [ "solidity", "^", "0.4", ".24" ], "nodeType": "PragmaDirective", "src": "44:24:26" }, { "absolutePath": "@aragon/os/contracts/common/UnstructuredStorage.sol", "file": "./UnstructuredStorage.sol", "id": 8666, "nodeType": "ImportDirective", "scope": 8762, "sourceUnit": 8976, "src": "70:35:26", "symbolAliases": [], "unitAlias": "" }, { "absolutePath": "@aragon/os/contracts/common/TimeHelpers.sol", "file": "../common/TimeHelpers.sol", "id": 8667, "nodeType": "ImportDirective", "scope": 8762, "sourceUnit": 8870, "src": "106:35:26", "symbolAliases": [], "unitAlias": "" }, { "baseContracts": [ { "arguments": null, "baseName": { "contractScope": null, "id": 8668, "name": "TimeHelpers", "nodeType": "UserDefinedTypeName", "referencedDeclaration": 8869, "src": "170:11:26", "typeDescriptions": { "typeIdentifier": "t_contract$_TimeHelpers_$8869", "typeString": "contract TimeHelpers" } }, "id": 8669, "nodeType": "InheritanceSpecifier", "src": "170:11:26" } ], "contractDependencies": [ 8869 ], "contractKind": "contract", "documentation": null, "fullyImplemented": true, "id": 8761, "linearizedBaseContracts": [ 8761, 8869 ], "name": "Initializable", "nodeType": "ContractDefinition", "nodes": [ { "id": 8672, "libraryName": { "contractScope": null, "id": 8670, "name": "UnstructuredStorage", "nodeType": "UserDefinedTypeName", "referencedDeclaration": 8975, "src": "194:19:26", "typeDescriptions": { "typeIdentifier": "t_contract$_UnstructuredStorage_$8975", "typeString": "library UnstructuredStorage" } }, "nodeType": "UsingForDirective", "src": "188:38:26", "typeName": { "id": 8671, "name": "bytes32", "nodeType": "ElementaryTypeName", "src": "218:7:26", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } } }, { "constant": true, "id": 8675, "name": "INITIALIZATION_BLOCK_POSITION", "nodeType": "VariableDeclaration", "scope": 8761, "src": "295:124:26", "stateVariable": true, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" }, "typeName": { "id": 8673, "name": "bytes32", "nodeType": "ElementaryTypeName", "src": "295:7:26", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } }, "value": { "argumentTypes": null, "hexValue": "307865626230356233383661386433343838326238373131643135366634363336393039383364633437383135393830666238326165656666316161343335373965", "id": 8674, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "353:66:26", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_106605114080364359579522388881656407901251981291752319576997573973948972095390_by_1", "typeString": "int_const 1066...(70 digits omitted)...5390" }, "value": "0xebb05b386a8d34882b8711d156f463690983dc47815980fb82aeeff1aa43579e" }, "visibility": "internal" }, { "constant": true, "id": 8678, "name": "ERROR_ALREADY_INITIALIZED", "nodeType": "VariableDeclaration", "scope": 8761, "src": "426:78:26", "stateVariable": true, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_string_memory", "typeString": "string" }, "typeName": { "id": 8676, "name": "string", "nodeType": "ElementaryTypeName", "src": "426:6:26", "typeDescriptions": { "typeIdentifier": "t_string_storage_ptr", "typeString": "string" } }, "value": { "argumentTypes": null, "hexValue": "494e49545f414c52454144595f494e495449414c495a4544", "id": 8677, "isConstant": false, "isLValue": false, "isPure": true, "kind": "string", "lValueRequested": false, "nodeType": "Literal", "src": "478:26:26", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_stringliteral_7a2bad6ae343e37d141d3f47355bee0a9a7371affceb8638867384a5d0ab0e73", "typeString": "literal_string \"INIT_ALREADY_INITIALIZED\"" }, "value": "INIT_ALREADY_INITIALIZED" }, "visibility": "private" }, { "constant": true, "id": 8681, "name": "ERROR_NOT_INITIALIZED", "nodeType": "VariableDeclaration", "scope": 8761, "src": "510:70:26", "stateVariable": true, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_string_memory", "typeString": "string" }, "typeName": { "id": 8679, "name": "string", "nodeType": "ElementaryTypeName", "src": "510:6:26", "typeDescriptions": { "typeIdentifier": "t_string_storage_ptr", "typeString": "string" } }, "value": { "argumentTypes": null, "hexValue": "494e49545f4e4f545f494e495449414c495a4544", "id": 8680, "isConstant": false, "isLValue": false, "isPure": true, "kind": "string", "lValueRequested": false, "nodeType": "Literal", "src": "558:22:26", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_stringliteral_0447b08a3c6a0d1d9310f95dd98634a89b7d8ccef436579bfc11a41060965373", "typeString": "literal_string \"INIT_NOT_INITIALIZED\"" }, "value": "INIT_NOT_INITIALIZED" }, "visibility": "private" }, { "body": { "id": 8692, "nodeType": "Block", "src": "605:93:26", "statements": [ { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "commonType": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "id": 8687, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "arguments": [], 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"FunctionCall", "src": "615:65:26", "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 8690, "nodeType": "ExpressionStatement", "src": "615:65:26" }, { "id": 8691, "nodeType": "PlaceholderStatement", "src": "690:1:26" } ] }, "documentation": null, "id": 8693, "name": "onlyInit", "nodeType": "ModifierDefinition", "parameters": { "id": 8682, "nodeType": "ParameterList", "parameters": [], "src": "605:0:26" }, "src": "587:111:26", "visibility": "internal" }, { "body": { "id": 8702, "nodeType": "Block", "src": "727:76:26", "statements": [ { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "arguments": [], "expression": { "argumentTypes": [], "id": 8696, "name": "hasInitialized", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 8733, "src": "745:14:26", "typeDescriptions": { "typeIdentifier": "t_function_internal_view$__$returns$_t_bool_$", "typeString": "function () view returns (bool)" } }, 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"statements": [ { "assignments": [ 8719 ], "declarations": [ { "constant": false, "id": 8719, "name": "initializationBlock", "nodeType": "VariableDeclaration", "scope": 8733, "src": "1199:27:26", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 8718, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "1199:7:26", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "id": 8722, "initialValue": { "argumentTypes": null, "arguments": [], "expression": { "argumentTypes": [], "id": 8720, "name": "getInitializationBlock", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 8713, "src": "1229:22:26", "typeDescriptions": { "typeIdentifier": "t_function_internal_view$__$returns$_t_uint256_$", "typeString": "function () view returns (uint256)" } }, "id": 8721, "isConstant": false, 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"setStorageUint256", "nodeType": "MemberAccess", "referencedDeclaration": 8974, "src": "1506:47:26", "typeDescriptions": { "typeIdentifier": "t_function_internal_nonpayable$_t_bytes32_$_t_uint256_$returns$__$bound_to$_t_bytes32_$", "typeString": "function (bytes32,uint256)" } }, "id": 8743, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "1506:65:26", "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 8744, "nodeType": "ExpressionStatement", "src": "1506:65:26" } ] }, "documentation": "@dev Function to be called by top level contract after initialization has finished.", "id": 8746, "implemented": true, "isConstructor": false, "isDeclaredConst": false, "modifiers": [ { "arguments": null, "id": 8736, "modifierName": { "argumentTypes": null, "id": 8735, "name": "onlyInit", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 8693, "src": "1487:8:26", "typeDescriptions": { "typeIdentifier": "t_modifier$__$", "typeString": "modifier ()" } }, "nodeType": "ModifierInvocation", "src": "1487:8:26" } ], "name": "initialized", "nodeType": "FunctionDefinition", "parameters": { "id": 8734, "nodeType": "ParameterList", "parameters": [], "src": "1475:2:26" }, "payable": false, "returnParameters": { "id": 8737, "nodeType": "ParameterList", "parameters": [], "src": "1496:0:26" }, "scope": 8761, "src": "1455:123:26", "stateMutability": "nonpayable", "superFunction": null, "visibility": "internal" }, { "body": { "id": 8759, "nodeType": "Block", "src": "1822:78:26", "statements": [ { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 8756, "name": "_blockNumber", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 8748, "src": "1880:12:26", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "expression": { "argumentTypes": null, "id": 8753, "name": "INITIALIZATION_BLOCK_POSITION", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 8675, "src": "1832:29:26", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } }, "id": 8755, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "setStorageUint256", "nodeType": "MemberAccess", "referencedDeclaration": 8974, "src": "1832:47:26", "typeDescriptions": { "typeIdentifier": "t_function_internal_nonpayable$_t_bytes32_$_t_uint256_$returns$__$bound_to$_t_bytes32_$", "typeString": "function (bytes32,uint256)" } }, "id": 8757, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "1832:61:26", "typeDescriptions": { "typeIdentifier": "t_tuple$__$", 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"stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 8747, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "1782:7:26", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "src": "1781:22:26" }, "payable": false, "returnParameters": { "id": 8752, "nodeType": "ParameterList", "parameters": [], "src": "1822:0:26" }, "scope": 8761, "src": "1759:141:26", "stateMutability": "nonpayable", "superFunction": null, "visibility": "internal" } ], "scope": 8762, "src": "144:1758:26" } ], "src": "44:1859:26" }, "compiler": { "name": "solc", "version": "0.4.24+commit.e67f0147.Emscripten.clang" }, "networks": {}, "schemaVersion": "3.0.1", "updatedAt": "2019-03-29T09:45:33.506Z", "devdoc": { "methods": { "getInitializationBlock()": { "return": "Block number in which the contract was initialized" }, "hasInitialized()": { "return": "Whether the contract has been initialized by the time of the current block" } } }, "userdoc": { "methods": {} } }