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subdomains to the first person to claim them, but\n * expires registrations a fixed period after they're initially claimed.\n */\ncontract TestRegistrar {\n uint constant registrationPeriod = 4 weeks;\n\n ENS public ens;\n bytes32 public rootNode;\n mapping (bytes32 => uint) public expiryTimes;\n\n /**\n * Constructor.\n * @param ensAddr The address of the ENS registry.\n * @param node The node that this registrar administers.\n */\n constructor(ENS ensAddr, bytes32 node) public {\n ens = ensAddr;\n rootNode = node;\n }\n\n /**\n * Register a name that's not currently registered\n * @param label The hash of the label to register.\n * @param owner The address of the new owner.\n */\n function register(bytes32 label, address owner) public {\n require(expiryTimes[label] < now);\n\n expiryTimes[label] = now + registrationPeriod;\n ens.setSubnodeOwner(rootNode, label, owner);\n }\n}\n", "sourcePath": "/Users/deaneigenmann/Documents/ens/contracts/TestRegistrar.sol", "ast": { "absolutePath": "/Users/deaneigenmann/Documents/ens/contracts/TestRegistrar.sol", "exportedSymbols": { "TestRegistrar": [ 3320 ] }, "id": 3321, "nodeType": "SourceUnit", "nodes": [ { "id": 3259, "literals": [ "solidity", ">=", "0.4", ".24" ], "nodeType": "PragmaDirective", "src": "0:25:13" }, { "absolutePath": "/Users/deaneigenmann/Documents/ens/contracts/ENS.sol", "file": "./ENS.sol", "id": 3260, "nodeType": "ImportDirective", "scope": 3321, "sourceUnit": 532, "src": "27:19:13", "symbolAliases": [], "unitAlias": "" }, { "baseContracts": [], "contractDependencies": [], "contractKind": "contract", "documentation": "A registrar that allocates subdomains to the first person to claim them, but\nexpires registrations a fixed period after they're initially claimed.", "fullyImplemented": true, "id": 3320, "linearizedBaseContracts": [ 3320 ], "name": "TestRegistrar", "nodeType": "ContractDefinition", "nodes": [ { "constant": true, "id": 3263, "name": "registrationPeriod", "nodeType": "VariableDeclaration", "scope": 3320, "src": "238:42:13", "stateVariable": true, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 3261, "name": "uint", "nodeType": "ElementaryTypeName", "src": "238:4:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": { "argumentTypes": null, "hexValue": "34", "id": 3262, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "273:7:13", "subdenomination": "weeks", "typeDescriptions": { "typeIdentifier": "t_rational_2419200_by_1", "typeString": "int_const 2419200" }, "value": "4" }, "visibility": "internal" }, { "constant": false, "id": 3265, "name": "ens", "nodeType": "VariableDeclaration", "scope": 3320, "src": "287:14:13", "stateVariable": true, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_contract$_ENS_$531", "typeString": "contract ENS" }, "typeName": { "contractScope": null, "id": 3264, "name": "ENS", "nodeType": "UserDefinedTypeName", "referencedDeclaration": 531, "src": "287:3:13", "typeDescriptions": { "typeIdentifier": "t_contract$_ENS_$531", "typeString": "contract ENS" } }, "value": null, "visibility": "public" }, { "constant": false, "id": 3267, "name": "rootNode", "nodeType": "VariableDeclaration", "scope": 3320, "src": "307:23:13", "stateVariable": true, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" }, "typeName": { "id": 3266, "name": "bytes32", "nodeType": "ElementaryTypeName", "src": "307:7:13", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } }, "value": null, "visibility": "public" }, { "constant": false, "id": 3271, "name": "expiryTimes", "nodeType": "VariableDeclaration", "scope": 3320, "src": "336:44:13", "stateVariable": true, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": 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"typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } }, "nodeType": "Assignment", "operator": "=", "rightHandSide": { "argumentTypes": null, "id": 3283, "name": "node", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 3275, "src": "629:4:13", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } }, "src": "618:15:13", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } }, "id": 3285, "nodeType": "ExpressionStatement", "src": "618:15:13" } ] }, "documentation": "Constructor.\n@param ensAddr The address of the ENS registry.\n@param node The node that this registrar administers.", "id": 3287, "implemented": true, "kind": "constructor", "modifiers": [], "name": "", "nodeType": "FunctionDefinition", "parameters": { "id": 3276, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 3273, "name": "ensAddr", "nodeType": "VariableDeclaration", "scope": 3287, "src": 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"nodeType": "MemberAccess", "referencedDeclaration": 488, "src": "986:19:13", "typeDescriptions": { "typeIdentifier": "t_function_external_nonpayable$_t_bytes32_$_t_bytes32_$_t_address_$returns$__$", "typeString": "function (bytes32,bytes32,address) external" } }, "id": 3316, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "986:43:13", "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 3317, "nodeType": "ExpressionStatement", "src": "986:43:13" } ] }, "documentation": "Register a name that's not currently registered\n@param label The hash of the label to register.\n@param owner The address of the new owner.", "id": 3319, "implemented": true, "kind": "function", "modifiers": [], "name": "register", "nodeType": "FunctionDefinition", "parameters": { "id": 3292, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 3289, "name": 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