witnet-solidity-bridge

{ "contractName": "WitnetUpgradableBase", "abi": [ { "inputs": [], "name": "InvalidInitialization", "type": "error" }, { "inputs": [], "name": "NotInitializing", "type": "error" }, { "inputs": [ { "internalType": "address", "name": "owner", "type": "address" } ], "name": "OwnableInvalidOwner", "type": "error" }, { "inputs": [ { "internalType": "address", "name": "account", "type": "address" } ], "name": "OwnableUnauthorizedAccount", "type": "error" }, { "inputs": [], "name": "ReentrancyGuardReentrantCall", "type": "error" }, { "anonymous": false, "inputs": [ { "indexed": false, "internalType": "uint64", "name": "version", "type": "uint64" } ], "name": "Initialized", "type": "event" }, { "anonymous": false, "inputs": [ { "indexed": true, "internalType": "address", "name": "previousOwner", "type": "address" }, { "indexed": true, "internalType": "address", "name": "newOwner", "type": "address" } ], "name": "OwnershipTransferStarted", "type": "event" }, { "anonymous": false, "inputs": [ { "indexed": true, "internalType": "address", "name": "previousOwner", "type": "address" }, { "indexed": true, "internalType": "address", "name": "newOwner", "type": "address" } ], "name": "OwnershipTransferred", "type": "event" }, { "anonymous": false, "inputs": [ { "indexed": true, "internalType": "address", "name": "from", "type": "address" }, { "indexed": true, "internalType": "address", "name": "baseAddr", "type": "address" }, { "indexed": true, "internalType": "bytes32", "name": "baseCodehash", "type": "bytes32" }, { "indexed": false, "internalType": "string", "name": "versionTag", "type": "string" } ], "name": "Upgraded", "type": "event" }, { "stateMutability": "nonpayable", "type": "fallback" }, { "inputs": [], "name": "acceptOwnership", "outputs": [], "stateMutability": "nonpayable", "type": "function" }, { "inputs": [], "name": "base", "outputs": [ { "internalType": "address", "name": "", "type": "address" } ], "stateMutability": "view", "type": "function" }, { "inputs": [], "name": "codehash", "outputs": [ { "internalType": "bytes32", "name": "_codehash", "type": "bytes32" } ], "stateMutability": "view", "type": "function" }, { "inputs": [], "name": "deployer", "outputs": [ { "internalType": "address", "name": "", "type": "address" } ], "stateMutability": "view", "type": "function" }, { "inputs": [], "name": "isUpgradable", "outputs": [ { "internalType": "bool", "name": "", "type": "bool" } ], "stateMutability": "view", "type": "function" }, { "inputs": [], "name": "owner", "outputs": [ { "internalType": "address", "name": "", "type": "address" } ], "stateMutability": "view", "type": "function" }, { "inputs": [], "name": "pendingOwner", "outputs": [ { "internalType": "address", "name": "", "type": "address" } ], "stateMutability": "view", "type": "function" }, { "inputs": [], "name": "proxiableUUID", "outputs": [ { "internalType": "bytes32", "name": "", "type": "bytes32" } ], "stateMutability": "view", "type": "function" }, { "inputs": [], "name": "renounceOwnership", "outputs": [], "stateMutability": "nonpayable", "type": "function" }, { "inputs": [ { "internalType": "address", "name": "newOwner", "type": "address" } ], "name": "transferOwnership", "outputs": [], "stateMutability": "nonpayable", "type": "function" }, { "inputs": [ { "internalType": "bytes", "name": "_initData", "type": "bytes" } ], "name": "initialize", "outputs": [], "stateMutability": "nonpayable", "type": "function" }, { "inputs": [ { "internalType": "address", "name": "_from", "type": "address" } ], "name": "isUpgradableFrom", "outputs": [ { "internalType": "bool", "name": "", "type": "bool" } ], "stateMutability": "view", "type": "function" }, { "inputs": [], "name": "version", "outputs": [ { "internalType": "string", "name": "", "type": "string" } ], "stateMutability": "view", "type": "function" } ], "metadata": "{\"compiler\":{\"version\":\"0.8.30+commit.73712a01\"},\"language\":\"Solidity\",\"output\":{\"abi\":[{\"inputs\":[],\"name\":\"InvalidInitialization\",\"type\":\"error\"},{\"inputs\":[],\"name\":\"NotInitializing\",\"type\":\"error\"},{\"inputs\":[{\"internalType\":\"address\",\"name\":\"owner\",\"type\":\"address\"}],\"name\":\"OwnableInvalidOwner\",\"type\":\"error\"},{\"inputs\":[{\"internalType\":\"address\",\"name\":\"account\",\"type\":\"address\"}],\"name\":\"OwnableUnauthorizedAccount\",\"type\":\"error\"},{\"inputs\":[],\"name\":\"ReentrancyGuardReentrantCall\",\"type\":\"error\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":false,\"internalType\":\"uint64\",\"name\":\"version\",\"type\":\"uint64\"}],\"name\":\"Initialized\",\"type\":\"event\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":true,\"internalType\":\"address\",\"name\":\"previousOwner\",\"type\":\"address\"},{\"indexed\":true,\"internalType\":\"address\",\"name\":\"newOwner\",\"type\":\"address\"}],\"name\":\"OwnershipTransferStarted\",\"type\":\"event\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":true,\"internalType\":\"address\",\"name\":\"previousOwner\",\"type\":\"address\"},{\"indexed\":true,\"internalType\":\"address\",\"name\":\"newOwner\",\"type\":\"address\"}],\"name\":\"OwnershipTransferred\",\"type\":\"event\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":true,\"internalType\":\"address\",\"name\":\"from\",\"type\":\"address\"},{\"indexed\":true,\"internalType\":\"address\",\"name\":\"baseAddr\",\"type\":\"address\"},{\"indexed\":true,\"internalType\":\"bytes32\",\"name\":\"baseCodehash\",\"type\":\"bytes32\"},{\"indexed\":false,\"internalType\":\"string\",\"name\":\"versionTag\",\"type\":\"string\"}],\"name\":\"Upgraded\",\"type\":\"event\"},{\"stateMutability\":\"nonpayable\",\"type\":\"fallback\"},{\"inputs\":[],\"name\":\"acceptOwnership\",\"outputs\":[],\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"base\",\"outputs\":[{\"internalType\":\"address\",\"name\":\"\",\"type\":\"address\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"codehash\",\"outputs\":[{\"internalType\":\"bytes32\",\"name\":\"_codehash\",\"type\":\"bytes32\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"deployer\",\"outputs\":[{\"internalType\":\"address\",\"name\":\"\",\"type\":\"address\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"bytes\",\"name\":\"_initData\",\"type\":\"bytes\"}],\"name\":\"initialize\",\"outputs\":[],\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"isUpgradable\",\"outputs\":[{\"internalType\":\"bool\",\"name\":\"\",\"type\":\"bool\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"address\",\"name\":\"_from\",\"type\":\"address\"}],\"name\":\"isUpgradableFrom\",\"outputs\":[{\"internalType\":\"bool\",\"name\":\"\",\"type\":\"bool\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"owner\",\"outputs\":[{\"internalType\":\"address\",\"name\":\"\",\"type\":\"address\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"pendingOwner\",\"outputs\":[{\"internalType\":\"address\",\"name\":\"\",\"type\":\"address\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"proxiableUUID\",\"outputs\":[{\"internalType\":\"bytes32\",\"name\":\"\",\"type\":\"bytes32\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"renounceOwnership\",\"outputs\":[],\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"address\",\"name\":\"newOwner\",\"type\":\"address\"}],\"name\":\"transferOwnership\",\"outputs\":[],\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"version\",\"outputs\":[{\"internalType\":\"string\",\"name\":\"\",\"type\":\"string\"}],\"stateMutability\":\"view\",\"type\":\"function\"}],\"devdoc\":{\"author\":\"Guillermo D\\u00edaz <guillermo@witnet.io>\",\"errors\":{\"InvalidInitialization()\":[{\"details\":\"The contract is already initialized.\"}],\"NotInitializing()\":[{\"details\":\"The contract is not initializing.\"}],\"OwnableInvalidOwner(address)\":[{\"details\":\"The owner is not a valid owner account. (eg. `address(0)`)\"}],\"OwnableUnauthorizedAccount(address)\":[{\"details\":\"The caller account is not authorized to perform an operation.\"}],\"ReentrancyGuardReentrantCall()\":[{\"details\":\"Unauthorized reentrant call.\"}]},\"events\":{\"Initialized(uint64)\":{\"details\":\"Triggered when the contract has been initialized or reinitialized.\"},\"Upgraded(address,address,bytes32,string)\":{\"params\":{\"baseAddr\":\"The address of the new implementation contract.\",\"baseCodehash\":\"The EVM-codehash of the new implementation contract.\",\"from\":\"The address who ordered the upgrading. Namely, the WRB operator in \\\"trustable\\\" implementations.\",\"versionTag\":\"Ascii-encoded version literal with which the implementation deployer decided to tag it.\"}}},\"kind\":\"dev\",\"methods\":{\"acceptOwnership()\":{\"details\":\"The new owner accepts the ownership transfer.\"},\"base()\":{\"details\":\"Retrieves base contract. Differs from address(this) when called via delegate-proxy pattern.\"},\"codehash()\":{\"details\":\"Retrieves the immutable codehash of this contract, even if invoked as delegatecall.\"},\"initialize(bytes)\":{\"details\":\"Must fail when trying to upgrade to same logic contract more than once.\"},\"isUpgradable()\":{\"details\":\"Determines whether the logic of this contract is potentially upgradable.\"},\"owner()\":{\"details\":\"Returns the address of the current owner.\"},\"pendingOwner()\":{\"details\":\"Returns the address of the pending owner.\"},\"renounceOwnership()\":{\"details\":\"Leaves the contract without owner. It will not be possible to call `onlyOwner` functions. Can only be called by the current owner. NOTE: Renouncing ownership will leave the contract without an owner, thereby disabling any functionality that is only available to the owner.\"},\"transferOwnership(address)\":{\"details\":\"Starts the ownership transfer of the contract to a new account. Replaces the pending transfer if there is one. Can only be called by the current owner.\"}},\"stateVariables\":{\"proxiableUUID\":{\"details\":\"Gets immutable \\\"heritage blood line\\\" (ie. genotype) as a Proxiable, and eventually Upgradeable, contract. If implemented as an Upgradeable touch, upgrading this contract to another one with a different `proxiableUUID()` value should fail.\"}},\"title\":\"Witnet Request Board base contract, with an Upgradeable (and Destructible) touch.\",\"version\":1},\"userdoc\":{\"events\":{\"Upgraded(address,address,bytes32,string)\":{\"notice\":\"Emitted every time the contract gets upgraded.\"}},\"kind\":\"user\",\"methods\":{\"initialize(bytes)\":{\"notice\":\"Re-initialize contract's storage context upon a new upgrade from a proxy.\"},\"isUpgradableFrom(address)\":{\"notice\":\"Tells whether provided address could eventually upgrade the contract.\"},\"version()\":{\"notice\":\"Retrieves human-readable version tag of current implementation.\"}},\"version\":1}},\"settings\":{\"compilationTarget\":{\"project:/contracts/core/WitnetUpgradableBase.sol\":\"WitnetUpgradableBase\"},\"evmVersion\":\"prague\",\"libraries\":{},\"metadata\":{\"bytecodeHash\":\"ipfs\"},\"optimizer\":{\"enabled\":true,\"runs\":200},\"remappings\":[]},\"sources\":{\"@openzeppelin/contracts-upgradeable/proxy/utils/Initializable.sol\":{\"keccak256\":\"0xdb4d24ee2c087c391d587cd17adfe5b3f9d93b3110b1388c2ab6c7c0ad1dcd05\",\"license\":\"MIT\",\"urls\":[\"bzz-raw://ab7b6d5b9e2b88176312967fe0f0e78f3d9a1422fa5e4b64e2440c35869b5d08\",\"dweb:/ipfs/QmXKYWWyzcLg1B2k7Sb1qkEXgLCYfXecR9wYW5obRzWP1Q\"]},\"@openzeppelin/contracts/access/Ownable.sol\":{\"keccak256\":\"0xff6d0bb2e285473e5311d9d3caacb525ae3538a80758c10649a4d61029b017bb\",\"license\":\"MIT\",\"urls\":[\"bzz-raw://8ed324d3920bb545059d66ab97d43e43ee85fd3bd52e03e401f020afb0b120f6\",\"dweb:/ipfs/QmfEckWLmZkDDcoWrkEvMWhms66xwTLff9DDhegYpvHo1a\"]},\"@openzeppelin/contracts/utils/Context.sol\":{\"keccak256\":\"0x493033a8d1b176a037b2cc6a04dad01a5c157722049bbecf632ca876224dd4b2\",\"license\":\"MIT\",\"urls\":[\"bzz-raw://6a708e8a5bdb1011c2c381c9a5cfd8a9a956d7d0a9dc1bd8bcdaf52f76ef2f12\",\"dweb:/ipfs/Qmax9WHBnVsZP46ZxEMNRQpLQnrdE4dK8LehML1Py8FowF\"]},\"@openzeppelin/contracts/utils/ReentrancyGuard.sol\":{\"keccak256\":\"0x11a5a79827df29e915a12740caf62fe21ebe27c08c9ae3e09abe9ee3ba3866d3\",\"license\":\"MIT\",\"urls\":[\"bzz-raw://3cf0c69ab827e3251db9ee6a50647d62c90ba580a4d7bbff21f2bea39e7b2f4a\",\"dweb:/ipfs/QmZiKwtKU1SBX4RGfQtY7PZfiapbbu6SZ9vizGQD9UHjRA\"]},\"@openzeppelin/contracts/utils/introspection/ERC165.sol\":{\"keccak256\":\"0x2d9dc2fe26180f74c11c13663647d38e259e45f95eb88f57b61d2160b0109d3e\",\"license\":\"MIT\",\"urls\":[\"bzz-raw://81233d1f98060113d9922180bb0f14f8335856fe9f339134b09335e9f678c377\",\"dweb:/ipfs/QmWh6R35SarhAn4z2wH8SU456jJSYL2FgucfTFgbHJJN4E\"]},\"@openzeppelin/contracts/utils/introspection/IERC165.sol\":{\"keccak256\":\"0x8891738ffe910f0cf2da09566928589bf5d63f4524dd734fd9cedbac3274dd5c\",\"license\":\"MIT\",\"urls\":[\"bzz-raw://971f954442df5c2ef5b5ebf1eb245d7105d9fbacc7386ee5c796df1d45b21617\",\"dweb:/ipfs/QmadRjHbkicwqwwh61raUEapaVEtaLMcYbQZWs9gUkgj3u\"]},\"project:/contracts/core/WitnetProxy.sol\":{\"keccak256\":\"0x6f0ec2c544192c9439bde88f5ed4efec5bdef506cb0dcb739c29329a798033fe\",\"license\":\"MIT\",\"urls\":[\"bzz-raw://ca05338334632aab3aef3c17a4b8686251ec488da49b9fcd3712642e57e0ce2a\",\"dweb:/ipfs/QmZk1uDdytKFii4TXUnJkFBBB3CZVSPKKR85ugFjWUTufS\"]},\"project:/contracts/core/WitnetUpgradableBase.sol\":{\"keccak256\":\"0x4cea0415b77897e151454ce87c1e20b7dc9f232de72b54a6740c90e076f7e1b9\",\"license\":\"MIT\",\"urls\":[\"bzz-raw://e0b803611c3a863ac5806b16e7d2a48b0e062fece262c750d121b5e9e17eb082\",\"dweb:/ipfs/QmVhFt1TkbkZ48jLsN5LgnpzpTdoMbfqGyMSJxjaEqisht\"]},\"project:/contracts/patterns/Initializable.sol\":{\"keccak256\":\"0xaac470e87f361cf15d68d1618d6eb7d4913885d33ccc39c797841a9591d44296\",\"license\":\"MIT\",\"urls\":[\"bzz-raw://ef3760b2039feda8715d4bd9f8de8e3885f25573d12ba92f52d626ba880a08bf\",\"dweb:/ipfs/QmP2mfHPBKkjTAKft95sPDb4PBsjfmAwc47Kdcv3xYSf3g\"]},\"project:/contracts/patterns/Ownable.sol\":{\"keccak256\":\"0x494bda32f9a218d9c33ea82112129c0933ab52f57eabfbf0d14a8742a3370800\",\"license\":\"MIT\",\"urls\":[\"bzz-raw://6c4cf04ebb052fed9d15cf93ff4523955ee311aa4425ee85f0e80b4489c94e76\",\"dweb:/ipfs/QmfMf4WD7woTaQSTbJxxoan2aXSeY7ovY5NoipSBw5rMPK\"]},\"project:/contracts/patterns/Ownable2Step.sol\":{\"keccak256\":\"0x45ed9d1f98e2a7a5bd1a7040dbd4292f1458fa1cb212d0143718684efa436bd5\",\"license\":\"MIT\",\"urls\":[\"bzz-raw://45d347c5ef492b33dcf3953bb3911fe7160a6c812e69ed84d2511f0847e19229\",\"dweb:/ipfs/QmZp3icE2gQBoJp8KorWC1GfGC8mK29sK9fEveKRMNCY1U\"]},\"project:/contracts/patterns/Proxiable.sol\":{\"keccak256\":\"0x86032205378fed9ed2bf155eed8ce4bdbb13b7f5960850c6d50954a38b61a3d8\",\"license\":\"MIT\",\"urls\":[\"bzz-raw://f89978eda4244a13f42a6092a94ac829bb3e38c92d77d4978b9f32894b187a63\",\"dweb:/ipfs/Qmbc1XaFCvLm3Sxvh7tP29Ug32jBGy3avsCqBGAptxs765\"]},\"project:/contracts/patterns/ReentrancyGuard.sol\":{\"keccak256\":\"0x1470caf4bd78b79f706e28a8a85c95a6e13ec33eda04275e5da84464130831e6\",\"license\":\"MIT\",\"urls\":[\"bzz-raw://c974fb4dc29718a84f9ab5fa3f8c25c7f889050a38445e16c3ead5ff9d4b4bab\",\"dweb:/ipfs/QmbuGjkSjngbTZMRPijL9p56fP9cK5jMnWsFmvYAQj3qAY\"]},\"project:/contracts/patterns/Upgradeable.sol\":{\"keccak256\":\"0x49d1a83abc7a9b39d224677dde65ead4b7f1104332a94c9e619854b2a6b3a89e\",\"license\":\"MIT\",\"urls\":[\"bzz-raw://e6a798a953af921a5b4e24e3f78bebae97819a85c90deb12ec505952faa42814\",\"dweb:/ipfs/QmVJhv4x3MXf4aDbMC5Q259K8kZNvxSXzmy8anoow7nS7k\"]}},\"version\":1}", "bytecode": "0x", "deployedBytecode": "0x", "immutableReferences": {}, "generatedSources": [], "deployedGeneratedSources": [], "sourceMap": "", "deployedSourceMap": "", "source": "// SPDX-License-Identifier: MIT\r\n// solhint-disable var-name-mixedcase\r\n// solhint-disable payable-fallback\r\n\r\npragma solidity >=0.8.0 <0.9.0;\r\n\r\nimport \"../patterns/Ownable2Step.sol\";\r\nimport \"../patterns/ReentrancyGuard.sol\";\r\nimport \"../patterns/Upgradeable.sol\";\r\n\r\nimport \"./WitnetProxy.sol\";\r\n\r\n/// @title Witnet Request Board base contract, with an Upgradeable (and Destructible) touch.\r\n/// @author Guillermo Díaz <guillermo@witnet.io>\r\nabstract contract WitnetUpgradableBase\r\n is\r\n Ownable2Step,\r\n Upgradeable, \r\n ReentrancyGuard\r\n{\r\n bytes32 internal immutable _WITNET_UPGRADABLE_VERSION;\r\n\r\n address public immutable deployer = msg.sender;\r\n\r\n constructor(\r\n bool _upgradable,\r\n bytes32 _versionTag,\r\n string memory _proxiableUUID\r\n )\r\n Upgradeable(_upgradable)\r\n {\r\n _WITNET_UPGRADABLE_VERSION = _versionTag;\r\n proxiableUUID = keccak256(bytes(_proxiableUUID));\r\n }\r\n \r\n /// @dev Reverts if proxy delegatecalls to unexistent method.\r\n /* solhint-disable no-complex-fallback */\r\n fallback() virtual external { \r\n revert(string(abi.encodePacked(\r\n \"WitnetUpgradableBase: not implemented: 0x\",\r\n _toHexString(uint8(bytes1(msg.sig))),\r\n _toHexString(uint8(bytes1(msg.sig << 8))),\r\n _toHexString(uint8(bytes1(msg.sig << 16))),\r\n _toHexString(uint8(bytes1(msg.sig << 24)))\r\n )));\r\n }\r\n \r\n \r\n // ================================================================================================================\r\n // --- Overrides 'Proxiable' --------------------------------------------------------------------------------------\r\n\r\n /// @dev Gets immutable \"heritage blood line\" (ie. genotype) as a Proxiable, and eventually Upgradeable, contract.\r\n /// If implemented as an Upgradeable touch, upgrading this contract to another one with a different \r\n /// `proxiableUUID()` value should fail.\r\n bytes32 public immutable override proxiableUUID;\r\n\r\n\r\n // ================================================================================================================\r\n // --- Overrides 'Upgradeable' ------------------------------------------------------------------------------------\r\n\r\n /// @notice Re-initialize contract's storage context upon a new upgrade from a proxy.\r\n /// @dev Must fail when trying to upgrade to same logic contract more than once.\r\n function initialize(bytes memory _initData) virtual override public {\r\n address _owner = owner();\r\n if (_owner == address(0)) {\r\n // upon first upgrade, extract decode owner address from _intidata\r\n (_owner, _initData) = abi.decode(_initData, (address, bytes));\r\n _transferOwnership(_owner);\r\n \r\n } else {\r\n // only owner can initialize an existing proxy:\r\n require(msg.sender == _owner, \"not the owner\");\r\n }\r\n __initializeUpgradableData(_initData);\r\n if (\r\n __proxiable().codehash != bytes32(0)\r\n && __proxiable().codehash == codehash()\r\n ) {\r\n revert(\"already initialized codehash\");\r\n }\r\n __proxiable().codehash = codehash();\r\n emit Upgraded(owner(), base(), codehash(), version());\r\n }\r\n\r\n /// Tells whether provided address could eventually upgrade the contract.\r\n function isUpgradableFrom(address _from) external view virtual override returns (bool) {\r\n return (\r\n // false if the WRB is intrinsically not upgradable, or `_from` is no owner\r\n isUpgradable()\r\n && owner() == _from\r\n );\r\n }\r\n\r\n /// Retrieves human-readable version tag of current implementation.\r\n function version() public view virtual override returns (string memory) {\r\n return _toString(_WITNET_UPGRADABLE_VERSION);\r\n }\r\n\r\n\r\n // ================================================================================================================\r\n // --- Internal methods -------------------------------------------------------------------------------------------\r\n\r\n function _toHexString(uint8 _u)\r\n internal pure\r\n returns (string memory)\r\n {\r\n bytes memory b2 = new bytes(2);\r\n uint8 d0 = uint8(_u / 16) + 48;\r\n uint8 d1 = uint8(_u % 16) + 48;\r\n if (d0 > 57)\r\n d0 += 7;\r\n if (d1 > 57)\r\n d1 += 7;\r\n b2[0] = bytes1(d0);\r\n b2[1] = bytes1(d1);\r\n return string(b2);\r\n }\r\n\r\n /// Converts bytes32 into string.\r\n function _toString(bytes32 _bytes32)\r\n internal pure\r\n returns (string memory)\r\n {\r\n bytes memory _bytes = new bytes(_toStringLength(_bytes32));\r\n for (uint _i = 0; _i < _bytes.length;) {\r\n _bytes[_i] = _bytes32[_i];\r\n unchecked {\r\n _i ++;\r\n }\r\n }\r\n return string(_bytes);\r\n }\r\n\r\n // Calculate length of string-equivalent to given bytes32.\r\n function _toStringLength(bytes32 _bytes32)\r\n internal pure\r\n returns (uint _length)\r\n {\r\n for (; _length < 32; ) {\r\n if (_bytes32[_length] == 0) {\r\n break;\r\n }\r\n unchecked {\r\n _length ++;\r\n }\r\n }\r\n }\r\n}\r\n", "sourcePath": "C:\\Users\\guill\\github\\guidiaz\\witnet-solidity-bridge\\contracts\\core\\WitnetUpgradableBase.sol", "ast": { "absolutePath": "project:/contracts/core/WitnetUpgradableBase.sol", "exportedSymbols": { "Context": [ 523 ], "ERC165": [ 616 ], "IERC165": [ 628 ], "Initializable": [ 267 ], "Ownable": [ 415 ], "Ownable2Step": [ 45709 ], "Proxiable": [ 45810 ], "ReentrancyGuard": [ 592 ], "Upgradeable": [ 45930 ], "WitnetProxy": [ 8994 ], "WitnetUpgradableBase": [ 9373 ] }, "id": 9374, "license": "MIT", "nodeType": "SourceUnit", "nodes": [ { "id": 8996, "literals": [ "solidity", ">=", "0.8", ".0", "<", "0.9", ".0" ], "nodeType": "PragmaDirective", "src": "111:31:26" }, { "absolutePath": "project:/contracts/patterns/Ownable2Step.sol", "file": "../patterns/Ownable2Step.sol", "id": 8997, "nameLocation": "-1:-1:-1", "nodeType": "ImportDirective", "scope": 9374, "sourceUnit": 45710, "src": "146:38:26", "symbolAliases": [], "unitAlias": "" }, { "absolutePath": "project:/contracts/patterns/ReentrancyGuard.sol", "file": "../patterns/ReentrancyGuard.sol", "id": 8998, "nameLocation": "-1:-1:-1", "nodeType": "ImportDirective", "scope": 9374, "sourceUnit": 45814, "src": "186:41:26", "symbolAliases": [], "unitAlias": "" }, { "absolutePath": "project:/contracts/patterns/Upgradeable.sol", "file": "../patterns/Upgradeable.sol", "id": 8999, "nameLocation": "-1:-1:-1", "nodeType": "ImportDirective", "scope": 9374, "sourceUnit": 45931, "src": "229:37:26", "symbolAliases": [], "unitAlias": "" }, { "absolutePath": "project:/contracts/core/WitnetProxy.sol", "file": "./WitnetProxy.sol", "id": 9000, "nameLocation": "-1:-1:-1", "nodeType": "ImportDirective", "scope": 9374, "sourceUnit": 8995, "src": "270:27:26", "symbolAliases": [], "unitAlias": "" }, { "abstract": true, "baseContracts": [ { "baseName": { "id": 9002, "name": "Ownable2Step", "nameLocations": [ "502:12:26" ], "nodeType": "IdentifierPath", "referencedDeclaration": 45709, "src": "502:12:26" }, "id": 9003, "nodeType": "InheritanceSpecifier", "src": "502:12:26" }, { "baseName": { "id": 9004, "name": "Upgradeable", "nameLocations": [ "525:11:26" ], "nodeType": "IdentifierPath", "referencedDeclaration": 45930, "src": "525:11:26" }, "id": 9005, "nodeType": "InheritanceSpecifier", "src": "525:11:26" }, { "baseName": { "id": 9006, "name": "ReentrancyGuard", "nameLocations": [ "548:15:26" ], "nodeType": "IdentifierPath", "referencedDeclaration": 592, "src": "548:15:26" }, "id": 9007, "nodeType": "InheritanceSpecifier", "src": "548:15:26" } ], "canonicalName": "WitnetUpgradableBase", "contractDependencies": [], "contractKind": "contract", "documentation": { "id": 9001, "nodeType": "StructuredDocumentation", "src": "301:145:26", "text": "@title Witnet Request Board base contract, with an Upgradeable (and Destructible) touch.\n @author Guillermo Díaz <guillermo@witnet.io>" }, "fullyImplemented": false, "id": 9373, "linearizedBaseContracts": [ 9373, 592, 45930, 45810, 267, 45709, 415, 523 ], "name": "WitnetUpgradableBase", "nameLocation": "464:20:26", "nodeType": "ContractDefinition", "nodes": [ { "constant": false, "id": 9009, "mutability": "immutable", "name": "_WITNET_UPGRADABLE_VERSION", "nameLocation": "599:26:26", "nodeType": "VariableDeclaration", "scope": 9373, "src": "572:53:26", "stateVariable": true, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" }, "typeName": { "id": 9008, "name": "bytes32", "nodeType": "ElementaryTypeName", "src": "572:7:26", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } }, "visibility": "internal" }, { "constant": false, "functionSelector": "d5f39488", "id": 9013, "mutability": "immutable", "name": "deployer", "nameLocation": "659:8:26", "nodeType": "VariableDeclaration", "scope": 9373, "src": "634:46:26", "stateVariable": true, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" }, "typeName": { "id": 9010, "name": "address", "nodeType": "ElementaryTypeName", "src": "634:7:26", "stateMutability": "nonpayable", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "value": { "expression": { "id": 9011, "name": "msg", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 4294967281, "src": "670:3:26", "typeDescriptions": { "typeIdentifier": "t_magic_message", "typeString": "msg" } }, "id": 9012, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberLocation": "674:6:26", "memberName": "sender", "nodeType": "MemberAccess", "src": "670:10:26", "typeDescriptions": { "typeIdentifier": "t_address", "typeString": "address" } }, "visibility": "public" }, { "body": { "id": 9038, "nodeType": "Block", "src": "859:118:26", "statements": [ { "expression": { "id": 9027, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "id": 9025, "name": "_WITNET_UPGRADABLE_VERSION", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 9009, "src": "870:26:26", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } }, "nodeType": "Assignment", "operator": "=", "rightHandSide": { "id": 9026, "name": "_versionTag", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 9017, "src": "899:11:26", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } }, "src": "870:40:26", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } }, "id": 9028, "nodeType": "ExpressionStatement", "src": "870:40:26" }, { "expression": { "id": 9036, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "id": 9029, "name": "proxiableUUID", "nodeType": "Identifier", "overloadedDeclarations": [], 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"mutable", "name": "_upgradable", "nameLocation": "720:11:26", "nodeType": "VariableDeclaration", "scope": 9039, "src": "715:16:26", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" }, "typeName": { "id": 9014, "name": "bool", "nodeType": "ElementaryTypeName", "src": "715:4:26", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "visibility": "internal" }, { "constant": false, "id": 9017, "mutability": "mutable", "name": "_versionTag", "nameLocation": "754:11:26", "nodeType": "VariableDeclaration", "scope": 9039, "src": "746:19:26", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" }, "typeName": { "id": 9016, "name": "bytes32", "nodeType": "ElementaryTypeName", "src": "746:7:26", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } }, "visibility": "internal" }, { "constant": 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