{ "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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"136:1758:32:-;;;;;;;;;;;;;;;;;;;;;;;;;;;;1128:208;;8:9:-1;5:2;;;30:1;27;20:12;5:2;1128:208:32;;;;;;;;;;;;;;;;;;;;;;881:137;;8:9:-1;5:2;;;30:1;27;20:12;5:2;881:137:32;;;;;;;;;;;;;;;;;;;;1128:208;1175:4;1191:27;1221:24;:22;:24::i;:::-;1191:54;-1:-1:-1;1262:24:32;;;;;: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;347:94:37:-;422:12;347:94;:::o;519:134:39:-;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": [ 10810 ] }, "id": 10811, "nodeType": "SourceUnit", "nodes": [ { "id": 10714, "literals": [ "solidity", "^", "0.4", ".24" ], "nodeType": "PragmaDirective", "src": "44:24:32" }, { "absolutePath": "@aragon/os/contracts/common/TimeHelpers.sol", "file": "./TimeHelpers.sol", "id": 10715, "nodeType": "ImportDirective", "scope": 10811, "sourceUnit": 11201, "src": "70:27:32", "symbolAliases": [], "unitAlias": "" }, { "absolutePath": "@aragon/os/contracts/common/UnstructuredStorage.sol", "file": "./UnstructuredStorage.sol", "id": 10716, "nodeType": "ImportDirective", "scope": 10811, "sourceUnit": 11307, "src": "98:35:32", "symbolAliases": [], "unitAlias": "" }, { "baseContracts": [ { "arguments": null, "baseName": { "contractScope": null, "id": 10717, "name": "TimeHelpers", "nodeType": "UserDefinedTypeName", "referencedDeclaration": 11200, "src": "162:11:32", "typeDescriptions": { "typeIdentifier": "t_contract$_TimeHelpers_$11200", "typeString": "contract TimeHelpers" } }, "id": 10718, "nodeType": "InheritanceSpecifier", "src": "162:11:32" } ], "contractDependencies": [ 11200 ], "contractKind": "contract", "documentation": null, "fullyImplemented": true, "id": 10810, "linearizedBaseContracts": [ 10810, 11200 ], "name": "Initializable", "nodeType": "ContractDefinition", "nodes": [ { "id": 10721, "libraryName": { "contractScope": null, "id": 10719, "name": "UnstructuredStorage", "nodeType": "UserDefinedTypeName", "referencedDeclaration": 11306, "src": "186:19:32", "typeDescriptions": { "typeIdentifier": "t_contract$_UnstructuredStorage_$11306", "typeString": "library UnstructuredStorage" } }, "nodeType": "UsingForDirective", "src": "180:38:32", "typeName": { "id": 10720, "name": "bytes32", "nodeType": "ElementaryTypeName", "src": "210:7:32", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } } }, { "constant": true, "id": 10724, "name": "INITIALIZATION_BLOCK_POSITION", "nodeType": "VariableDeclaration", "scope": 10810, "src": "287:124:32", "stateVariable": true, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" }, "typeName": { "id": 10722, "name": "bytes32", "nodeType": "ElementaryTypeName", "src": "287:7:32", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } }, "value": { "argumentTypes": null, "hexValue": "307865626230356233383661386433343838326238373131643135366634363336393039383364633437383135393830666238326165656666316161343335373965", "id": 10723, "isConstant": 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