{ "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" } ], "metadata": "{\"compiler\":{\"version\":\"0.4.24+commit.e67f0147\"},\"language\":\"Solidity\",\"output\":{\"abi\":[{\"constant\":true,\"inputs\":[],\"name\":\"hasInitialized\",\"outputs\":[{\"name\":\"\",\"type\":\"bool\"}],\"payable\":false,\"stateMutability\":\"view\",\"type\":\"function\"},{\"constant\":true,\"inputs\":[],\"name\":\"getInitializationBlock\",\"outputs\":[{\"name\":\"\",\"type\":\"uint256\"}],\"payable\":false,\"stateMutability\":\"view\",\"type\":\"function\"}],\"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\":{}}},\"settings\":{\"compilationTarget\":{\"@aragon/os/contracts/common/Initializable.sol\":\"Initializable\"},\"evmVersion\":\"byzantium\",\"libraries\":{},\"optimizer\":{\"enabled\":true,\"runs\":10000},\"remappings\":[]},\"sources\":{\"@aragon/os/contracts/common/Initializable.sol\":{\"keccak256\":\"0xc559fdbee1c0ee18b6f2f866c28ed6eb96859b2c88f75867ca11f25ebd00b090\",\"urls\":[\"bzzr://3d3bca8b35030fc12f94bb52a162be9520868b27ff2cb32f09179d67b6ffdf93\"]},\"@aragon/os/contracts/common/TimeHelpers.sol\":{\"keccak256\":\"0x95b785dc4319f6ce5255c9adf5e68a469a0f837f7b02e01b6bc974b4921d4024\",\"urls\":[\"bzzr://53f41920d95ed5cb7326de3062063c9296076809377fbadf2cbd26ab0c84ffd1\"]},\"@aragon/os/contracts/common/Uint256Helpers.sol\":{\"keccak256\":\"0x83033025a3f4402be3b7bcc9a23ce96ae4fadc7f251da8f139d73a13a3400b0c\",\"urls\":[\"bzzr://bd0e059eff36a66c3a28298ed5a2e1b058ce93057866ab36063e9f3095cef36f\"]},\"@aragon/os/contracts/common/UnstructuredStorage.sol\":{\"keccak256\":\"0xe0d627fc7a7716409389f34cfe49366ba7871309d3a73262ec9608ef73e47591\",\"urls\":[\"bzzr://9742204494402cdecc66b266f0e420fcfe2677ba710db7651c40f96a63940bef\"]}},\"version\":1}", 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"136:1758:30:-;;;;;;;;;;;;;;;;;;;;;;;;;;;;1128:208;;8:9:-1;5:2;;;30:1;27;20:12;5:2;1128:208:30;;;;;;;;;;;;;;;;;;;;;;881:137;;8:9:-1;5:2;;;30:1;27;20:12;5:2;881:137:30;;;;;;;;;;;;;;;;;;;;1128:208;1175:4;1191:27;1221:24;:22;:24::i;:::-;1191:54;-1:-1:-1;1262:24:30;;;;;:67;;;1310:19;1290:16;:14;:16::i;:::-;:39;;1262:67;1255:74;;1128:208;;:::o;881:137::-;936:7;962:49;345:66;962:47;:49::i;:::-;955:56;;881:137;:::o;347:94:35:-;422:12;347:94;:::o;519:134:37:-;630:15;;620:27::o", "source": "/*\n * SPDX-License-Identitifer: MIT\n */\n\npragma solidity ^0.4.24;\n\nimport \"./TimeHelpers.sol\";\nimport \"./UnstructuredStorage.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": [ 6441 ] }, "id": 6442, "nodeType": "SourceUnit", "nodes": [ { "id": 6345, "literals": [ "solidity", "^", "0.4", ".24" ], "nodeType": "PragmaDirective", "src": "44:24:30" }, { "absolutePath": "@aragon/os/contracts/common/TimeHelpers.sol", "file": "./TimeHelpers.sol", "id": 6346, "nodeType": "ImportDirective", "scope": 6442, "sourceUnit": 6832, "src": "70:27:30", "symbolAliases": [], "unitAlias": "" }, { "absolutePath": "@aragon/os/contracts/common/UnstructuredStorage.sol", "file": "./UnstructuredStorage.sol", "id": 6347, "nodeType": "ImportDirective", "scope": 6442, "sourceUnit": 6938, "src": "98:35:30", "symbolAliases": [], "unitAlias": "" }, { "baseContracts": [ { "arguments": null, "baseName": { "contractScope": null, "id": 6348, "name": "TimeHelpers", "nodeType": "UserDefinedTypeName", "referencedDeclaration": 6831, "src": "162:11:30", "typeDescriptions": { "typeIdentifier": "t_contract$_TimeHelpers_$6831", "typeString": "contract TimeHelpers" } }, "id": 6349, "nodeType": "InheritanceSpecifier", "src": "162:11:30" } ], "contractDependencies": [ 6831 ], "contractKind": "contract", "documentation": null, "fullyImplemented": true, "id": 6441, "linearizedBaseContracts": [ 6441, 6831 ], "name": "Initializable", "nodeType": "ContractDefinition", "nodes": [ { "id": 6352, "libraryName": { "contractScope": null, "id": 6350, "name": "UnstructuredStorage", "nodeType": "UserDefinedTypeName", "referencedDeclaration": 6937, "src": "186:19:30", "typeDescriptions": { "typeIdentifier": "t_contract$_UnstructuredStorage_$6937", "typeString": "library UnstructuredStorage" } }, "nodeType": "UsingForDirective", "src": "180:38:30", "typeName": { "id": 6351, "name": "bytes32", "nodeType": "ElementaryTypeName", "src": "210:7:30", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } } }, { "constant": true, "id": 6355, "name": "INITIALIZATION_BLOCK_POSITION", "nodeType": "VariableDeclaration", "scope": 6441, "src": "287:124:30", "stateVariable": true, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" }, "typeName": { "id": 6353, "name": "bytes32", "nodeType": "ElementaryTypeName", "src": "287:7:30", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } }, "value": { "argumentTypes": null, "hexValue": "307865626230356233383661386433343838326238373131643135366634363336393039383364633437383135393830666238326165656666316161343335373965", "id": 6354, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "345:66:30", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_106605114080364359579522388881656407901251981291752319576997573973948972095390_by_1", "typeString": "int_const 1066...(70 digits omitted)...5390" }, "value": "0xebb05b386a8d34882b8711d156f463690983dc47815980fb82aeeff1aa43579e" }, "visibility": "internal" }, { "constant": true, "id": 6358, "name": "ERROR_ALREADY_INITIALIZED", "nodeType": "VariableDeclaration", "scope": 6441, "src": "418:78:30", "stateVariable": true, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_string_memory", "typeString": "string" }, "typeName": { "id": 6356, "name": "string", "nodeType": "ElementaryTypeName", "src": "418:6:30", "typeDescriptions": { "typeIdentifier": "t_string_storage_ptr", "typeString": "string" } }, "value": { "argumentTypes": null, "hexValue": "494e49545f414c52454144595f494e495449414c495a4544", "id": 6357, "isConstant": false, "isLValue": false, "isPure": true, "kind": "string", "lValueRequested": false, "nodeType": "Literal", "src": "470:26:30", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_stringliteral_7a2bad6ae343e37d141d3f47355bee0a9a7371affceb8638867384a5d0ab0e73", "typeString": "literal_string \"INIT_ALREADY_INITIALIZED\"" }, "value": "INIT_ALREADY_INITIALIZED" }, "visibility": "private" }, { "constant": true, "id": 6361, "name": "ERROR_NOT_INITIALIZED", "nodeType": "VariableDeclaration", "scope": 6441, "src": "502:70:30", "stateVariable": true, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_string_memory", "typeString": "string" }, "typeName": { "id": 6359, "name": "string", "nodeType": "ElementaryTypeName", "src": "502:6:30", "typeDescriptions": { "typeIdentifier": "t_string_storage_ptr", "typeString": "string" } }, "value": { "argumentTypes": null, "hexValue": "494e49545f4e4f545f494e495449414c495a4544", "id": 6360, "isConstant": false, "isLValue": false, "isPure": true, "kind": "string", "lValueRequested": false, "nodeType": "Literal", "src": "550:22:30", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_stringliteral_0447b08a3c6a0d1d9310f95dd98634a89b7d8ccef436579bfc11a41060965373", "typeString": "literal_string \"INIT_NOT_INITIALIZED\"" }, "value": "INIT_NOT_INITIALIZED" }, "visibility": "private" }, { "body": { "id": 6372, "nodeType": "Block", "src": "597:93:30", "statements": [ { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "commonType": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "id": 6367, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "arguments": [], "expression": { "argumentTypes": [], "id": 6364, "name": "getInitializationBlock", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 6393, "src": "615:22:30", "typeDescriptions": { "typeIdentifier": "t_function_internal_view$__$returns$_t_uint256_$", "typeString": "function () view returns (uint256)" } }, "id": 6365, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "615:24:30", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "BinaryOperation", "operator": "==", "rightExpression": { "argumentTypes": null, "hexValue": "30", "id": 6366, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "643:1:30", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_0_by_1", "typeString": "int_const 0" }, "value": "0" }, "src": "615:29:30", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, { "argumentTypes": null, "id": 6368, "name": "ERROR_ALREADY_INITIALIZED", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 6358, "src": "646:25:30", "typeDescriptions": { "typeIdentifier": "t_string_memory", "typeString": "string memory" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_bool", "typeString": "bool" }, { "typeIdentifier": "t_string_memory", "typeString": "string memory" } ], "id": 6363, "name": "require", "nodeType": "Identifier", "overloadedDeclarations": [ 10407, 10408 ], "referencedDeclaration": 10408, "src": "607:7:30", "typeDescriptions": { "typeIdentifier": "t_function_require_pure$_t_bool_$_t_string_memory_ptr_$returns$__$", "typeString": "function (bool,string memory) pure" } }, "id": 6369, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "607:65:30", "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 6370, "nodeType": "ExpressionStatement", "src": "607:65:30" }, { "id": 6371, "nodeType": "PlaceholderStatement", "src": "682:1:30" } ] }, "documentation": null, "id": 6373, "name": "onlyInit", "nodeType": "ModifierDefinition", "parameters": { "id": 6362, "nodeType": "ParameterList", "parameters": [], "src": "597:0:30" }, "src": "579:111:30", "visibility": "internal" }, { "body": { "id": 6382, "nodeType": "Block", "src": "719:76:30", "statements": [ { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "arguments": [], "expression": { "argumentTypes": [], "id": 6376, "name": "hasInitialized", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 6413, "src": "737:14:30", "typeDescriptions": { "typeIdentifier": "t_function_internal_view$__$returns$_t_bool_$", "typeString": "function () view returns (bool)" } }, "id": 6377, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "737:16:30", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, { "argumentTypes": null, "id": 6378, "name": "ERROR_NOT_INITIALIZED", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 6361, "src": "755:21:30", "typeDescriptions": { "typeIdentifier": "t_string_memory", "typeString": "string memory" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_bool", "typeString": "bool" }, { "typeIdentifier": "t_string_memory", "typeString": "string memory" } ], "id": 6375, "name": "require", "nodeType": "Identifier", "overloadedDeclarations": [ 10407, 10408 ], "referencedDeclaration": 10408, "src": "729:7:30", "typeDescriptions": { "typeIdentifier": "t_function_require_pure$_t_bool_$_t_string_memory_ptr_$returns$__$", "typeString": "function (bool,string memory) pure" } }, "id": 6379, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "729:48:30", "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 6380, "nodeType": "ExpressionStatement", "src": "729:48:30" }, { "id": 6381, "nodeType": "PlaceholderStatement", "src": "787:1:30" } ] }, "documentation": null, "id": 6383, "name": "isInitialized", "nodeType": "ModifierDefinition", "parameters": { "id": 6374, "nodeType": "ParameterList", "parameters": [], "src": "719:0:30" }, "src": "696:99:30", "visibility": "internal" }, { "body": { "id": 6392, "nodeType": "Block", "src": "945:73:30", "statements": [ { "expression": { "argumentTypes": null, "arguments": [], "expression": { "argumentTypes": [], "expression": { "argumentTypes": null, "id": 6388, "name": "INITIALIZATION_BLOCK_POSITION", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 6355, "src": "962:29:30", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } }, "id": 6389, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "getStorageUint256", "nodeType": "MemberAccess", "referencedDeclaration": 6900, "src": "962:47:30", "typeDescriptions": { "typeIdentifier": "t_function_internal_view$_t_bytes32_$returns$_t_uint256_$bound_to$_t_bytes32_$", "typeString": "function (bytes32) view returns (uint256)" } }, "id": 6390, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "962:49:30", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "functionReturnParameters": 6387, "id": 6391, "nodeType": "Return", "src": "955:56:30" } ] }, "documentation": "@return Block number in which the contract was initialized", "id": 6393, "implemented": true, "isConstructor": false, "isDeclaredConst": true, "modifiers": [], "name": "getInitializationBlock", "nodeType": "FunctionDefinition", "parameters": { "id": 6384, "nodeType": "ParameterList", "parameters": [], "src": "912:2:30" }, "payable": false, "returnParameters": { "id": 6387, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 6386, "name": "", "nodeType": "VariableDeclaration", "scope": 6393, "src": "936:7:30", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 6385, "name": "uint256", "nodeType": "ElementaryTypeName", "src": "936:7:30", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "src": "935:9:30" }, "scope": 6441, "src": "881:137:30", "stateMutability": "view", "superFunction": null, "visibility": "public" }, { "body": { "id": 6412, "nodeType": "Block", "src": "1181:155:30", "statements": [ { "assignments": [ 6399 ], "declarations": [ { "constant": false, "id": 6399, "name": "initializationBlock", "nodeType": "VariableDeclaration", 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