{ "contractName": "StablePriceOracle", "abi": [ { "constant": true, "inputs": [ { "name": "", "type": "uint256" } ], "name": "rentPrices", "outputs": [ { "name": "", "type": "uint256" } ], "payable": false, "stateMutability": "view", "type": "function" }, { "constant": false, "inputs": [], "name": "renounceOwnership", "outputs": [], "payable": false, "stateMutability": "nonpayable", "type": "function" }, { "constant": true, "inputs": [], "name": "owner", "outputs": [ { "name": "", "type": "address" } ], "payable": false, "stateMutability": "view", "type": "function" }, { "constant": true, "inputs": [], "name": "isOwner", "outputs": [ { "name": "", "type": "bool" } ], "payable": false, "stateMutability": "view", "type": "function" }, { "constant": false, "inputs": [ { "name": "newOwner", "type": "address" } ], "name": "transferOwnership", "outputs": [], "payable": false, "stateMutability": "nonpayable", "type": "function" }, { "inputs": [ { "name": "_usdOracle", "type": "address" }, { "name": "_rentPrices", "type": "uint256[]" } ], "payable": false, "stateMutability": "nonpayable", "type": "constructor" }, { "anonymous": false, "inputs": [ { "indexed": false, "name": "oracle", "type": "address" } ], "name": "OracleChanged", "type": "event" }, { "anonymous": false, "inputs": [ { "indexed": false, "name": "prices", "type": "uint256[]" } ], "name": "RentPriceChanged", "type": "event" }, { "anonymous": false, "inputs": [ { "indexed": true, "name": "previousOwner", "type": "address" }, { "indexed": true, "name": "newOwner", "type": "address" } ], "name": "OwnershipTransferred", "type": "event" }, { "constant": false, "inputs": [ { "name": "_usdOracle", "type": "address" } ], "name": "setOracle", "outputs": [], "payable": false, "stateMutability": "nonpayable", "type": "function" }, { "constant": false, "inputs": [ { "name": "_rentPrices", "type": "uint256[]" } ], "name": "setPrices", "outputs": [], "payable": false, "stateMutability": "nonpayable", "type": "function" }, { "constant": true, "inputs": [ { "name": "name", "type": "string" }, { "name": "", "type": "uint256" }, { "name": "duration", "type": "uint256" } ], "name": "price", "outputs": [ { "name": "", "type": "uint256" } ], "payable": false, "stateMutability": "view", "type": "function" } ], "metadata": 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Each element corresponds to a specific name length; names longer than the length of the array default to the price of the last element.\"}},\"transferOwnership(address)\":{\"details\":\"Allows the current owner to transfer control of the contract to a newOwner.\",\"params\":{\"newOwner\":\"The address to transfer ownership to.\"}}}},\"userdoc\":{\"methods\":{\"renounceOwnership()\":{\"notice\":\"Renouncing to ownership will leave the contract without an owner. 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"source": "pragma solidity ^0.5.0;\n\nimport \"./PriceOracle.sol\";\nimport \"./SafeMath.sol\";\nimport \"./StringUtils.sol\";\nimport \"openzeppelin-solidity/contracts/ownership/Ownable.sol\";\n\ninterface DSValue {\n function read() external view returns (bytes32);\n}\n\n// StablePriceOracle sets a price in USD, based on an oracle.\ncontract StablePriceOracle is Ownable, PriceOracle {\n using SafeMath for *;\n using StringUtils for *;\n\n // Oracle address\n DSValue usdOracle;\n\n // Rent in attodollars (1e-18) per second\n uint[] public rentPrices;\n\n event OracleChanged(address oracle);\n event RentPriceChanged(uint[] prices);\n\n constructor(DSValue _usdOracle, uint[] memory _rentPrices) public {\n setOracle(_usdOracle);\n setPrices(_rentPrices);\n }\n\n /**\n * @dev Sets the price oracle address\n * @param _usdOracle The address of the price oracle to use.\n */\n function setOracle(DSValue _usdOracle) public onlyOwner {\n usdOracle = _usdOracle;\n emit OracleChanged(address(_usdOracle));\n }\n\n /**\n * @dev Sets rent prices.\n * @param _rentPrices The price array. Each element corresponds to a specific\n * name length; names longer than the length of the array\n * default to the price of the last element.\n */\n function setPrices(uint[] memory _rentPrices) public onlyOwner {\n rentPrices = _rentPrices;\n emit RentPriceChanged(_rentPrices);\n }\n\n /**\n * @dev Returns the price to register or renew a name.\n * @param name The name being registered or renewed.\n * @param duration How long the name is being registered or extended for, in seconds.\n * @return The price of this renewal or registration, in wei.\n */\n function price(string calldata name, uint /*expires*/, uint duration) view external returns(uint) {\n uint len = name.strlen();\n if(len > rentPrices.length) {\n len = rentPrices.length;\n }\n require(len > 0);\n uint priceUSD = rentPrices[len - 1].mul(duration);\n\n // Price of one ether in attodollars\n uint ethPrice = uint(usdOracle.read());\n\n // priceUSD and ethPrice are both fixed-point values with 18dp, so we\n // multiply the numerator by 1e18 before dividing.\n return priceUSD.mul(1e18).div(ethPrice);\n }\n}\n", "sourcePath": "/Users/makoto/work/ens/ethregistrar/contracts/StablePriceOracle.sol", "ast": { "absolutePath": "/Users/makoto/work/ens/ethregistrar/contracts/StablePriceOracle.sol", "exportedSymbols": { "DSValue": [ 4087 ], "StablePriceOracle": [ 4224 ] }, "id": 4225, "nodeType": "SourceUnit", "nodes": [ { "id": 4077, "literals": [ "solidity", "^", "0.5", ".0" ], "nodeType": "PragmaDirective", "src": "0:23:13" }, { "absolutePath": "/Users/makoto/work/ens/ethregistrar/contracts/PriceOracle.sol", "file": "./PriceOracle.sol", "id": 4078, "nodeType": "ImportDirective", "scope": 4225, "sourceUnit": 2240, "src": "25:27:13", "symbolAliases": [], "unitAlias": "" }, { "absolutePath": "/Users/makoto/work/ens/ethregistrar/contracts/SafeMath.sol", "file": "./SafeMath.sol", "id": 4079, "nodeType": "ImportDirective", "scope": 4225, "sourceUnit": 2863, "src": "53:24:13", "symbolAliases": [], "unitAlias": "" }, { "absolutePath": "/Users/makoto/work/ens/ethregistrar/contracts/StringUtils.sol", "file": "./StringUtils.sol", "id": 4080, "nodeType": "ImportDirective", "scope": 4225, "sourceUnit": 4322, "src": "78:27:13", "symbolAliases": [], "unitAlias": "" }, { "absolutePath": "openzeppelin-solidity/contracts/ownership/Ownable.sol", "file": "openzeppelin-solidity/contracts/ownership/Ownable.sol", "id": 4081, "nodeType": "ImportDirective", "scope": 4225, "sourceUnit": 12206, "src": "106:63:13", "symbolAliases": [], "unitAlias": "" }, { "baseContracts": [], "contractDependencies": [], "contractKind": "interface", "documentation": null, "fullyImplemented": false, "id": 4087, "linearizedBaseContracts": [ 4087 ], "name": "DSValue", "nodeType": "ContractDefinition", "nodes": [ { "body": null, "documentation": null, "id": 4086, "implemented": false, "kind": "function", "modifiers": [], "name": "read", "nodeType": "FunctionDefinition", "parameters": { "id": 4082, "nodeType": "ParameterList", "parameters": [], "src": "208:2:13" }, "returnParameters": { "id": 4085, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 4084, "name": "", "nodeType": "VariableDeclaration", "scope": 4086, "src": "234:7:13", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" }, "typeName": { "id": 4083, "name": "bytes32", "nodeType": "ElementaryTypeName", "src": "234:7:13", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } }, "value": null, "visibility": "internal" } ], "src": "233:9:13" }, "scope": 4087, "src": "195:48:13", "stateMutability": "view", "superFunction": null, "visibility": "external" } ], "scope": 4225, "src": "171:74:13" }, { "baseContracts": [ { "arguments": null, "baseName": { "contractScope": null, "id": 4088, "name": "Ownable", "nodeType": "UserDefinedTypeName", "referencedDeclaration": 12205, "src": "339:7:13", "typeDescriptions": { "typeIdentifier": "t_contract$_Ownable_$12205", "typeString": "contract Ownable" } }, "id": 4089, "nodeType": "InheritanceSpecifier", "src": "339:7:13" }, { "arguments": null, "baseName": { "contractScope": null, "id": 4090, "name": "PriceOracle", "nodeType": "UserDefinedTypeName", "referencedDeclaration": 2239, "src": "348:11:13", "typeDescriptions": { "typeIdentifier": "t_contract$_PriceOracle_$2239", "typeString": "contract PriceOracle" } }, "id": 4091, "nodeType": "InheritanceSpecifier", "src": "348:11:13" } ], "contractDependencies": [ 2239, 12205 ], "contractKind": "contract", "documentation": null, "fullyImplemented": true, "id": 4224, "linearizedBaseContracts": [ 4224, 2239, 12205 ], "name": "StablePriceOracle", "nodeType": "ContractDefinition", "nodes": [ { "id": 4093, "libraryName": { "contractScope": null, "id": 4092, "name": "SafeMath", "nodeType": "UserDefinedTypeName", "referencedDeclaration": 2862, "src": "372:8:13", "typeDescriptions": { "typeIdentifier": "t_contract$_SafeMath_$2862", "typeString": "library SafeMath" } }, "nodeType": "UsingForDirective", "src": "366:21:13", "typeName": null }, { "id": 4095, "libraryName": { "contractScope": null, "id": 4094, "name": "StringUtils", "nodeType": "UserDefinedTypeName", "referencedDeclaration": 4321, "src": "398:11:13", "typeDescriptions": { "typeIdentifier": "t_contract$_StringUtils_$4321", "typeString": "library StringUtils" } }, "nodeType": "UsingForDirective", "src": "392:24:13", "typeName": null }, { "constant": false, "id": 4097, "name": "usdOracle", "nodeType": "VariableDeclaration", "scope": 4224, "src": "444:17:13", "stateVariable": true, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_contract$_DSValue_$4087", "typeString": "contract DSValue" }, "typeName": { "contractScope": null, "id": 4096, "name": "DSValue", "nodeType": "UserDefinedTypeName", "referencedDeclaration": 4087, "src": "444:7:13", "typeDescriptions": { "typeIdentifier": "t_contract$_DSValue_$4087", "typeString": "contract DSValue" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 4100, "name": "rentPrices", "nodeType": "VariableDeclaration", "scope": 4224, "src": "514:24:13", "stateVariable": true, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_array$_t_uint256_$dyn_storage", "typeString": "uint256[]" }, "typeName": { "baseType": { "id": 4098, "name": "uint", "nodeType": "ElementaryTypeName", "src": "514:4:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "id": 4099, "length": null, "nodeType": "ArrayTypeName", "src": "514:6:13", "typeDescriptions": { "typeIdentifier": "t_array$_t_uint256_$dyn_storage_ptr", "typeString": "uint256[]" } }, "value": null, "visibility": "public" }, { "anonymous": false, "documentation": null, "id": 4104, "name": "OracleChanged", "nodeType": "EventDefinition", "parameters": { "id": 4103, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 4102, "indexed": false, "name": "oracle", "nodeType": "VariableDeclaration", "scope": 4104, "src": "565:14:13", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 4101, "name": "address", "nodeType": "ElementaryTypeName", "src": "565:7:13", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": null, "visibility": "internal" } ], "src": "564:16:13" }, "src": "545:36:13" }, { "anonymous": false, "documentation": null, "id": 4109, "name": "RentPriceChanged", "nodeType": "EventDefinition", "parameters": { "id": 4108, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 4107, "indexed": false, "name": "prices", "nodeType": "VariableDeclaration", "scope": 4109, "src": "609:13:13", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_array$_t_uint256_$dyn_memory_ptr", "typeString": "uint256[]" }, "typeName": { "baseType": { "id": 4105, "name": "uint", "nodeType": "ElementaryTypeName", "src": "609:4:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "id": 4106, "length": null, "nodeType": "ArrayTypeName", "src": "609:6:13", "typeDescriptions": { "typeIdentifier": "t_array$_t_uint256_$dyn_storage_ptr", "typeString": "uint256[]" } }, "value": null, "visibility": "internal" } ], "src": "608:15:13" }, "src": "586:38:13" }, { "body": { "id": 4125, "nodeType": "Block", "src": "696:70:13", "statements": [ { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 4118, "name": "_usdOracle", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4111, "src": "716:10:13", "typeDescriptions": { "typeIdentifier": "t_contract$_DSValue_$4087", "typeString": "contract DSValue" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_contract$_DSValue_$4087", "typeString": "contract 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false, "isPure": false, "lValueRequested": false, "leftHandSide": { "argumentTypes": null, "id": 4152, "name": "rentPrices", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4100, "src": "1395:10:13", "typeDescriptions": { "typeIdentifier": "t_array$_t_uint256_$dyn_storage", "typeString": "uint256[] storage ref" } }, "nodeType": "Assignment", "operator": "=", "rightHandSide": { "argumentTypes": null, "id": 4153, "name": "_rentPrices", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4147, "src": "1408:11:13", "typeDescriptions": { "typeIdentifier": "t_array$_t_uint256_$dyn_memory_ptr", "typeString": "uint256[] memory" } }, "src": "1395:24:13", "typeDescriptions": { "typeIdentifier": "t_array$_t_uint256_$dyn_storage", "typeString": "uint256[] storage ref" } }, "id": 4155, "nodeType": "ExpressionStatement", "src": "1395:24:13" }, { "eventCall": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 4157, 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"EmitStatement", "src": "1429:34:13" } ] }, "documentation": "@dev Sets rent prices.\n@param _rentPrices The price array. Each element corresponds to a specific\n name length; names longer than the length of the array\n default to the price of the last element.", "id": 4161, "implemented": true, "kind": "function", "modifiers": [ { "arguments": null, "id": 4150, "modifierName": { "argumentTypes": null, "id": 4149, "name": "onlyOwner", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 12139, "src": "1375:9:13", "typeDescriptions": { "typeIdentifier": "t_modifier$__$", "typeString": "modifier ()" } }, "nodeType": "ModifierInvocation", "src": "1375:9:13" } ], "name": "setPrices", "nodeType": "FunctionDefinition", "parameters": { "id": 4148, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 4147, "name": "_rentPrices", "nodeType": "VariableDeclaration", "scope": 4161, "src": "1341:25:13", "stateVariable": false, "storageLocation": "memory", "typeDescriptions": { "typeIdentifier": "t_array$_t_uint256_$dyn_memory_ptr", "typeString": "uint256[]" }, "typeName": { "baseType": { "id": 4145, "name": "uint", "nodeType": "ElementaryTypeName", "src": "1341:4:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "id": 4146, "length": null, "nodeType": "ArrayTypeName", "src": "1341:6:13", "typeDescriptions": { "typeIdentifier": "t_array$_t_uint256_$dyn_storage_ptr", "typeString": "uint256[]" } }, "value": null, "visibility": "internal" } ], "src": "1340:27:13" }, "returnParameters": { "id": 4151, "nodeType": "ParameterList", "parameters": [], "src": "1385:0:13" }, "scope": 4224, "src": "1322:148:13", "stateMutability": "nonpayable", "superFunction": null, "visibility": "public" }, { "body": { "id": 4222, "nodeType": "Block", "src": "1862:492:13", "statements": [ { "assignments": [ 4173 ], "declarations": [ { "constant": false, "id": 4173, "name": "len", "nodeType": "VariableDeclaration", "scope": 4222, "src": "1872:8:13", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": 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"name": "rentPrices", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4100, "src": "1915:10:13", "typeDescriptions": { "typeIdentifier": "t_array$_t_uint256_$dyn_storage", "typeString": "uint256[] storage ref" } }, "id": 4180, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "memberName": "length", "nodeType": "MemberAccess", "referencedDeclaration": null, "src": "1915:17:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "src": "1909:23:13", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "falseBody": null, "id": 4188, "nodeType": "IfStatement", "src": "1906:76:13", "trueBody": { "id": 4187, "nodeType": "Block", "src": "1934:48:13", "statements": [ { "expression": { "argumentTypes": null, "id": 4185, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "argumentTypes": null, "id": 4182, "name": "len", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4173, "src": "1948:3:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "Assignment", "operator": "=", "rightHandSide": { "argumentTypes": null, "expression": { "argumentTypes": null, "id": 4183, "name": "rentPrices", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4100, "src": "1954:10:13", "typeDescriptions": { "typeIdentifier": "t_array$_t_uint256_$dyn_storage", "typeString": "uint256[] storage ref" } }, "id": 4184, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "memberName": "length", "nodeType": "MemberAccess", "referencedDeclaration": null, "src": "1954:17:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "src": "1948:23:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "id": 4186, "nodeType": "ExpressionStatement", "src": "1948:23:13" } ] } }, { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "commonType": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "id": 4192, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "id": 4190, "name": "len", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4173, "src": "1999:3:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "BinaryOperation", "operator": ">", "rightExpression": { "argumentTypes": null, "hexValue": "30", "id": 4191, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "2005:1:13", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_0_by_1", "typeString": "int_const 0" }, "value": "0" }, "src": "1999:7:13", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_bool", "typeString": "bool" } ], "id": 4189, "name": "require", "nodeType": "Identifier", "overloadedDeclarations": [ 12920, 12921 ], "referencedDeclaration": 12920, "src": "1991:7:13", "typeDescriptions": { "typeIdentifier": "t_function_require_pure$_t_bool_$returns$__$", "typeString": "function (bool) pure" } }, "id": 4193, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "1991:16:13", "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 4194, "nodeType": "ExpressionStatement", "src": "1991:16:13" }, { "assignments": [ 4196 ], "declarations": [ { "constant": false, "id": 4196, "name": "priceUSD", "nodeType": "VariableDeclaration", "scope": 4222, "src": "2017:13:13", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 4195, "name": "uint", "nodeType": "ElementaryTypeName", "src": "2017:4:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "id": 4205, "initialValue": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 4203, "name": "duration", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4167, "src": "2057:8:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "expression": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "id": 4197, "name": "rentPrices", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4100, "src": "2033:10:13", "typeDescriptions": { "typeIdentifier": 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"2017:49:13" }, { "assignments": [ 4207 ], "declarations": [ { "constant": false, "id": 4207, "name": "ethPrice", "nodeType": "VariableDeclaration", "scope": 4222, "src": "2122:13:13", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 4206, "name": "uint", "nodeType": "ElementaryTypeName", "src": "2122:4:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "id": 4213, "initialValue": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "arguments": [], "expression": { "argumentTypes": [], "expression": { "argumentTypes": null, "id": 4209, "name": "usdOracle", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4097, "src": "2143:9:13", "typeDescriptions": { "typeIdentifier": "t_contract$_DSValue_$4087", "typeString": "contract DSValue" } }, "id": 4210, "isConstant": 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{ "baseType": { "id": 4145, "name": "uint", "nodeType": "ElementaryTypeName", "src": "1341:4:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "id": 4146, "length": null, "nodeType": "ArrayTypeName", "src": "1341:6:13", "typeDescriptions": { "typeIdentifier": "t_array$_t_uint256_$dyn_storage_ptr", "typeString": "uint256[]" } }, "value": null, "visibility": "internal" } ], "src": "1340:27:13" }, "returnParameters": { "id": 4151, "nodeType": "ParameterList", "parameters": [], "src": "1385:0:13" }, "scope": 4224, "src": "1322:148:13", "stateMutability": "nonpayable", "superFunction": null, "visibility": "public" }, { "body": { "id": 4222, "nodeType": "Block", "src": "1862:492:13", "statements": [ { "assignments": [ 4173 ], "declarations": [ { "constant": false, "id": 4173, "name": "len", "nodeType": "VariableDeclaration", "scope": 4222, "src": "1872:8:13", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 4172, "name": "uint", "nodeType": "ElementaryTypeName", "src": "1872:4:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "id": 4177, "initialValue": { "argumentTypes": null, "arguments": [], "expression": { "argumentTypes": [], "expression": { "argumentTypes": null, "id": 4174, "name": "name", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4163, "src": "1883:4:13", "typeDescriptions": { "typeIdentifier": "t_string_calldata_ptr", "typeString": "string calldata" } }, "id": 4175, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "strlen", "nodeType": "MemberAccess", "referencedDeclaration": 4320, "src": "1883:11:13", "typeDescriptions": { "typeIdentifier": "t_function_internal_pure$_t_string_memory_ptr_$returns$_t_uint256_$bound_to$_t_string_memory_ptr_$", "typeString": "function (string memory) pure returns (uint256)" } }, "id": 4176, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "1883:13:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "VariableDeclarationStatement", "src": "1872:24:13" }, { "condition": { "argumentTypes": null, "commonType": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "id": 4181, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "id": 4178, "name": "len", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4173, "src": "1909:3:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "BinaryOperation", "operator": ">", "rightExpression": { "argumentTypes": null, "expression": { "argumentTypes": null, "id": 4179, "name": "rentPrices", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4100, "src": "1915:10:13", "typeDescriptions": { "typeIdentifier": "t_array$_t_uint256_$dyn_storage", "typeString": "uint256[] storage ref" } }, "id": 4180, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "memberName": "length", "nodeType": "MemberAccess", "referencedDeclaration": null, "src": "1915:17:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "src": "1909:23:13", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "falseBody": null, "id": 4188, "nodeType": "IfStatement", "src": "1906:76:13", "trueBody": { "id": 4187, "nodeType": "Block", "src": "1934:48:13", "statements": [ { "expression": { "argumentTypes": null, "id": 4185, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "argumentTypes": null, "id": 4182, "name": "len", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4173, "src": "1948:3:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "Assignment", "operator": "=", "rightHandSide": { "argumentTypes": null, "expression": { "argumentTypes": null, "id": 4183, "name": "rentPrices", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4100, "src": "1954:10:13", "typeDescriptions": { "typeIdentifier": "t_array$_t_uint256_$dyn_storage", "typeString": "uint256[] storage ref" } }, "id": 4184, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "memberName": "length", "nodeType": "MemberAccess", "referencedDeclaration": null, "src": "1954:17:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "src": "1948:23:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "id": 4186, "nodeType": 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"typeIdentifier": "t_bool", "typeString": "bool" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_bool", "typeString": "bool" } ], "id": 4189, "name": "require", "nodeType": "Identifier", "overloadedDeclarations": [ 12920, 12921 ], "referencedDeclaration": 12920, "src": "1991:7:13", "typeDescriptions": { "typeIdentifier": "t_function_require_pure$_t_bool_$returns$__$", "typeString": "function (bool) pure" } }, "id": 4193, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "1991:16:13", "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 4194, "nodeType": "ExpressionStatement", "src": "1991:16:13" }, { "assignments": [ 4196 ], "declarations": [ { "constant": false, "id": 4196, "name": "priceUSD", "nodeType": "VariableDeclaration", "scope": 4222, "src": "2017:13:13", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 4195, "name": "uint", "nodeType": "ElementaryTypeName", "src": "2017:4:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "id": 4205, "initialValue": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 4203, "name": "duration", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4167, "src": "2057:8:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "expression": { "argumentTypes": null, "baseExpression": { "argumentTypes": null, "id": 4197, "name": "rentPrices", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4100, "src": "2033:10:13", "typeDescriptions": { "typeIdentifier": "t_array$_t_uint256_$dyn_storage", "typeString": "uint256[] storage ref" } }, "id": 4201, "indexExpression": { "argumentTypes": null, "commonType": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "id": 4200, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "id": 4198, "name": "len", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4173, "src": "2044:3:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "BinaryOperation", "operator": "-", "rightExpression": { "argumentTypes": null, "hexValue": "31", "id": 4199, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "2050:1:13", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_1_by_1", "typeString": "int_const 1" }, "value": "1" }, "src": "2044:7:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "nodeType": "IndexAccess", "src": "2033:19:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "id": 4202, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "mul", "nodeType": "MemberAccess", "referencedDeclaration": 2769, "src": "2033:23:13", "typeDescriptions": { "typeIdentifier": "t_function_internal_pure$_t_uint256_$_t_uint256_$returns$_t_uint256_$bound_to$_t_uint256_$", "typeString": "function (uint256,uint256) pure returns (uint256)" } }, "id": 4204, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "2033:33:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "VariableDeclarationStatement", "src": "2017:49:13" }, { "assignments": [ 4207 ], "declarations": [ { "constant": false, "id": 4207, "name": "ethPrice", "nodeType": "VariableDeclaration", "scope": 4222, "src": "2122:13:13", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 4206, "name": "uint", "nodeType": "ElementaryTypeName", "src": "2122:4:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "id": 4213, "initialValue": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "arguments": [], "expression": { "argumentTypes": [], "expression": { "argumentTypes": null, "id": 4209, "name": "usdOracle", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4097, "src": "2143:9:13", "typeDescriptions": { "typeIdentifier": "t_contract$_DSValue_$4087", "typeString": "contract DSValue" } }, "id": 4210, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "read", "nodeType": "MemberAccess", "referencedDeclaration": 4086, "src": "2143:14:13", "typeDescriptions": { "typeIdentifier": "t_function_external_view$__$returns$_t_bytes32_$", "typeString": "function () view external returns (bytes32)" } }, "id": 4211, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "2143:16:13", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } ], "id": 4208, "isConstant": false, "isLValue": false, "isPure": true, "lValueRequested": false, "nodeType": "ElementaryTypeNameExpression", "src": "2138:4:13", "typeDescriptions": { "typeIdentifier": "t_type$_t_uint256_$", "typeString": "type(uint256)" }, "typeName": "uint" }, "id": 4212, "isConstant": false, "isLValue": false, "isPure": false, "kind": "typeConversion", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "2138:22:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "VariableDeclarationStatement", "src": "2122:38:13" }, { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 4219, "name": "ethPrice", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4207, "src": "2338:8:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "hexValue": "31653138", "id": 4216, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "2328:4:13", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_1000000000000000000_by_1", "typeString": "int_const 1000000000000000000" }, "value": "1e18" } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_rational_1000000000000000000_by_1", "typeString": "int_const 1000000000000000000" } ], "expression": { "argumentTypes": null, "id": 4214, "name": "priceUSD", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4196, "src": "2315:8:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "id": 4215, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "mul", "nodeType": "MemberAccess", "referencedDeclaration": 2769, "src": "2315:12:13", "typeDescriptions": { "typeIdentifier": "t_function_internal_pure$_t_uint256_$_t_uint256_$returns$_t_uint256_$bound_to$_t_uint256_$", "typeString": "function (uint256,uint256) pure returns (uint256)" } }, "id": 4217, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "2315:18:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "id": 4218, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "div", "nodeType": "MemberAccess", "referencedDeclaration": 2793, "src": "2315:22:13", "typeDescriptions": { "typeIdentifier": "t_function_internal_pure$_t_uint256_$_t_uint256_$returns$_t_uint256_$bound_to$_t_uint256_$", "typeString": "function (uint256,uint256) pure returns (uint256)" } }, "id": 4220, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "2315:32:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "functionReturnParameters": 4171, "id": 4221, "nodeType": "Return", "src": "2308:39:13" } ] }, "documentation": "@dev Returns the price to register or renew a name.\n@param name The name being registered or renewed.\n@param duration How long the name is being registered or extended for, in seconds.\n@return The price of this renewal or registration, in wei.", "id": 4223, "implemented": true, "kind": "function", "modifiers": [], "name": "price", "nodeType": "FunctionDefinition", "parameters": { "id": 4168, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 4163, "name": "name", "nodeType": "VariableDeclaration", "scope": 4223, "src": "1779:20:13", "stateVariable": false, "storageLocation": "calldata", "typeDescriptions": { "typeIdentifier": "t_string_calldata_ptr", "typeString": "string" }, "typeName": { "id": 4162, "name": "string", "nodeType": "ElementaryTypeName", "src": "1779:6:13", "typeDescriptions": { "typeIdentifier": "t_string_storage_ptr", "typeString": "string" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 4165, "name": "", "nodeType": "VariableDeclaration", "scope": 4223, "src": "1801:4:13", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 4164, "name": "uint", "nodeType": "ElementaryTypeName", "src": "1801:4:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 4167, "name": "duration", "nodeType": "VariableDeclaration", "scope": 4223, "src": "1819:13:13", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 4166, "name": "uint", "nodeType": "ElementaryTypeName", "src": "1819:4:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "src": "1778:55:13" }, "returnParameters": { "id": 4171, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 4170, "name": "", "nodeType": "VariableDeclaration", "scope": 4223, "src": "1856:4:13", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 4169, "name": "uint", "nodeType": "ElementaryTypeName", "src": "1856:4:13", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "src": "1855:6:13" }, "scope": 4224, "src": "1764:590:13", "stateMutability": "view", "superFunction": 2238, "visibility": "external" } ], "scope": 4225, "src": "309:2047:13" } ], "src": "0:2357:13" }, "compiler": { "name": "solc", "version": "0.5.8+commit.23d335f2.Emscripten.clang" }, "networks": {}, "schemaVersion": "3.0.13", "updatedAt": "2020-04-06T10:03:41.537Z", "devdoc": { "methods": { "isOwner()": { "return": "true if `msg.sender` is the owner of the contract." }, "owner()": { "return": "the address of the owner." }, "price(string,uint256,uint256)": { "details": "Returns the price to register or renew a name.", "params": { "duration": "How long the name is being registered or extended for, in seconds.", "name": "The name being registered or renewed." }, "return": "The price of this renewal or registration, in wei." }, "renounceOwnership()": { "details": "Allows the current owner to relinquish control of the contract." }, "setOracle(address)": { "details": "Sets the price oracle address", "params": { "_usdOracle": "The address of the price oracle to use." } }, "setPrices(uint256[])": { "details": "Sets rent prices.", "params": { "_rentPrices": "The price array. Each element corresponds to a specific name length; names longer than the length of the array default to the price of the last element." } }, "transferOwnership(address)": { "details": "Allows the current owner to transfer control of the contract to a newOwner.", "params": { "newOwner": "The address to transfer ownership to." } } } }, "userdoc": { "methods": { "renounceOwnership()": { "notice": "Renouncing to ownership will leave the contract without an owner. It will not be possible to call the functions with the `onlyOwner` modifier anymore." } } } }