{ "contractName": "WitnetPriceFeedsData", "abi": [], "metadata": "{\"compiler\":{\"version\":\"0.8.25+commit.b61c2a91\"},\"language\":\"Solidity\",\"output\":{\"abi\":[],\"devdoc\":{\"author\":\"The Witnet Foundation.\",\"kind\":\"dev\",\"methods\":{},\"title\":\"WitnetFeeds data model.\",\"version\":1},\"userdoc\":{\"kind\":\"user\",\"methods\":{},\"version\":1}},\"settings\":{\"compilationTarget\":{\"project:/contracts/data/WitnetPriceFeedsData.sol\":\"WitnetPriceFeedsData\"},\"evmVersion\":\"paris\",\"libraries\":{},\"metadata\":{\"bytecodeHash\":\"ipfs\"},\"optimizer\":{\"enabled\":true,\"runs\":200},\"remappings\":[]},\"sources\":{\"project:/contracts/data/WitnetPriceFeedsData.sol\":{\"keccak256\":\"0x8cc848254deb42ab5c6d29d02c312c42cbee2b88f9dfed4289f990faa9079787\",\"license\":\"MIT\",\"urls\":[\"bzz-raw://23922b87c483c75397f5a5a8837ac8feef98517893dc4f38ec3f8f830263f15c\",\"dweb:/ipfs/QmUk9Re19ft1qqpPbG4RDMuZRe9Cj7dChHhhVmvjeH3GLj\"]}},\"version\":1}", "bytecode": "0x", "deployedBytecode": "0x", "immutableReferences": {}, "generatedSources": [], "deployedGeneratedSources": [], "sourceMap": "", "deployedSourceMap": "", "source": "// SPDX-License-Identifier: MIT\r\n\r\npragma solidity >=0.8.0 <0.9.0;\r\n\r\n/// @title WitnetFeeds data model.\r\n/// @author The Witnet Foundation.\r\nabstract contract WitnetPriceFeedsData {\r\n \r\n bytes32 private constant _WITNET_FEEDS_DATA_SLOTHASH =\r\n /* keccak256(\"io.witnet.feeds.data\") */\r\n 0xe36ea87c48340f2c23c9e1c9f72f5c5165184e75683a4d2a19148e5964c1d1ff;\r\n\r\n struct Storage {\r\n bytes32 reserved;\r\n bytes4[] ids;\r\n mapping (bytes4 => Record) records;\r\n }\r\n\r\n struct Record {\r\n string caption;\r\n uint8 decimals;\r\n uint256 index;\r\n uint256 lastValidQueryId;\r\n uint256 latestUpdateQueryId;\r\n bytes32 radHash;\r\n address solver; // logic contract address for reducing values on routed feeds.\r\n int256 solverReductor; // as to reduce resulting number of decimals on routed feeds.\r\n bytes32 solverDepsFlag; // as to store ids of up to 8 depending feeds.\r\n }\r\n\r\n // ================================================================================================\r\n // --- Internal functions -------------------------------------------------------------------------\r\n \r\n /// @notice Returns storage pointer to where Storage data is located. \r\n function __storage()\r\n internal pure\r\n returns (Storage storage _ptr)\r\n {\r\n assembly {\r\n _ptr.slot := _WITNET_FEEDS_DATA_SLOTHASH\r\n }\r\n }\r\n\r\n /// @notice Returns storage pointer to where Record for given feedId is located.\r\n function __records_(bytes4 feedId) internal view returns (Record storage) {\r\n return __storage().records[feedId];\r\n }\r\n\r\n /// @notice Returns array of feed ids from which given feed's value depends.\r\n /// @dev Returns empty array on either unsupported or not-routed feeds.\r\n /// @dev The maximum number of dependencies is hard-limited to 8, as to limit number\r\n /// @dev of SSTORE operations (`__storage().records[feedId].solverDepsFlag`), \r\n /// @dev no matter the actual number of depending feeds involved.\r\n function _depsOf(bytes4 feedId) internal view returns (bytes4[] memory _deps) {\r\n bytes32 _solverDepsFlag = __storage().records[feedId].solverDepsFlag;\r\n _deps = new bytes4[](8);\r\n uint _len;\r\n for (_len = 0; _len < 8; _len ++) {\r\n _deps[_len] = bytes4(_solverDepsFlag);\r\n if (_deps[_len] == 0) {\r\n break;\r\n } else {\r\n _solverDepsFlag <<= 32;\r\n }\r\n }\r\n assembly {\r\n // reset length to actual number of dependencies:\r\n mstore(_deps, _len)\r\n }\r\n }\r\n}", "sourcePath": "C:\\Users\\guill\\github\\witnet\\witnet-solidity-bridge\\contracts\\data\\WitnetPriceFeedsData.sol", "ast": { "absolutePath": "project:/contracts/data/WitnetPriceFeedsData.sol", "exportedSymbols": { "WitnetPriceFeedsData": [ 12523 ] }, "id": 12524, "license": "MIT", "nodeType": "SourceUnit", "nodes": [ { "id": 12398, "literals": [ "solidity", ">=", "0.8", 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"statements": [ { "expression": { "id": 12503, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "baseExpression": { "id": 12496, "name": "_deps", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 12464, "src": "2359:5:42", "typeDescriptions": { "typeIdentifier": "t_array$_t_bytes4_$dyn_memory_ptr", "typeString": "bytes4[] memory" } }, "id": 12498, "indexExpression": { "id": 12497, "name": "_len", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 12484, "src": "2365:4:42", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": true, "nodeType": "IndexAccess", "src": "2359:11:42", "typeDescriptions": { "typeIdentifier": "t_bytes4", "typeString": "bytes4" } }, "nodeType": "Assignment", "operator": "=", "rightHandSide": { "arguments": [ { "id": 12501, "name": "_solverDepsFlag", 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"typeDescriptions": { "typeIdentifier": "t_bytes4", "typeString": "bytes4" } }, "id": 12504, "nodeType": "ExpressionStatement", "src": "2359:37:42" }, { "condition": { "commonType": { "typeIdentifier": "t_bytes4", "typeString": "bytes4" }, "id": 12509, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "baseExpression": { "id": 12505, "name": "_deps", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 12464, "src": "2415:5:42", "typeDescriptions": { "typeIdentifier": "t_array$_t_bytes4_$dyn_memory_ptr", "typeString": "bytes4[] memory" } }, "id": 12507, "indexExpression": { "id": 12506, "name": "_len", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 12484, "src": "2421:4:42", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "nodeType": "IndexAccess", "src": "2415:11:42", "typeDescriptions": { "typeIdentifier": "t_bytes4", "typeString": "bytes4" } }, "nodeType": "BinaryOperation", "operator": "==", "rightExpression": { "hexValue": "30", "id": 12508, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "2430:1:42", "typeDescriptions": { "typeIdentifier": "t_rational_0_by_1", "typeString": "int_const 0" }, "value": "0" }, "src": "2415:16:42", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "falseBody": { "id": 12516, "nodeType": "Block", "src": "2479:57:42", "statements": [ { "expression": { "id": 12514, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "id": 12512, "name": "_solverDepsFlag", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 12467, "src": "2498:15:42", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } }, "nodeType": "Assignment", "operator": "<<=", "rightHandSide": { "hexValue": "3332", "id": 12513, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "2518:2:42", "typeDescriptions": { "typeIdentifier": "t_rational_32_by_1", "typeString": "int_const 32" }, "value": "32" }, "src": "2498:22:42", "typeDescriptions": { "typeIdentifier": "t_bytes32", "typeString": "bytes32" } }, "id": 12515, "nodeType": "ExpressionStatement", "src": "2498:22:42" } ] }, "id": 12517, "nodeType": "IfStatement", "src": "2411:125:42", "trueBody": { "id": 12511, "nodeType": "Block", "src": "2433:40:42", "statements": [ { "id": 12510, "nodeType": "Break", "src": "2452:5:42" } ] } } ] }, "condition": { "commonType": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "id": 12492, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "id": 12490, "name": "_len", "nodeType": 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"typeString": "uint256" } }, "nodeType": "Assignment", "operator": "=", "rightHandSide": { "hexValue": "30", "id": 12487, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "2322:1:42", "typeDescriptions": { "typeIdentifier": "t_rational_0_by_1", "typeString": "int_const 0" }, "value": "0" }, "src": "2315:8:42", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "id": 12489, "nodeType": "ExpressionStatement", "src": "2315:8:42" }, "isSimpleCounterLoop": true, "loopExpression": { "expression": { "id": 12494, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "nodeType": "UnaryOperation", "operator": "++", "prefix": false, "src": "2335:7:42", "subExpression": { "id": 12493, "name": "_len", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 12484, "src": "2335:4:42", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "id": 12495, "nodeType": "ExpressionStatement", "src": "2335:7:42" }, "nodeType": "ForStatement", "src": "2310:237:42" }, { "AST": { "nativeSrc": "2566:108:42", "nodeType": "YulBlock", "src": "2566:108:42", "statements": [ { "expression": { "arguments": [ { "name": "_deps", "nativeSrc": "2651:5:42", "nodeType": "YulIdentifier", "src": "2651:5:42" }, { "name": "_len", "nativeSrc": "2658:4:42", "nodeType": "YulIdentifier", "src": "2658:4:42" } ], "functionName": { "name": "mstore", "nativeSrc": "2644:6:42", "nodeType": "YulIdentifier", "src": "2644:6:42" }, "nativeSrc": "2644:19:42", "nodeType": "YulFunctionCall", "src": "2644:19:42" }, "nativeSrc": "2644:19:42", "nodeType": "YulExpressionStatement", "src": "2644:19:42" } ] }, "evmVersion": "paris", "externalReferences": [ { "declaration": 12464, "isOffset": false, "isSlot": false, "src": "2651:5:42", "valueSize": 1 }, { "declaration": 12484, "isOffset": false, "isSlot": false, "src": "2658:4:42", "valueSize": 1 } ], "id": 12520, "nodeType": "InlineAssembly", "src": "2557:117:42" } ] }, "documentation": { "id": 12458, "nodeType": "StructuredDocumentation", "src": "1684:398:42", "text": "@notice Returns array of feed ids from which given feed's value depends.\n @dev Returns empty array on either unsupported or not-routed feeds.\n @dev The maximum number of dependencies is hard-limited to 8, as to limit number\n @dev of SSTORE operations (`__storage().records[feedId].solverDepsFlag`), \n @dev no matter the actual number of depending feeds involved." }, "id": 12522, "implemented": true, "kind": "function", "modifiers": [], "name": "_depsOf", "nameLocation": "2097:7:42", "nodeType": "FunctionDefinition", "parameters": { "id": 12461, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 12460, "mutability": "mutable", "name": "feedId", "nameLocation": "2112:6:42", "nodeType": "VariableDeclaration", "scope": 12522, "src": "2105:13:42", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_bytes4", "typeString": "bytes4" }, "typeName": { "id": 12459, "name": "bytes4", "nodeType": "ElementaryTypeName", "src": "2105:6:42", "typeDescriptions": { "typeIdentifier": "t_bytes4", "typeString": "bytes4" } }, "visibility": "internal" } ], "src": "2104:15:42" }, "returnParameters": { "id": 12465, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 12464, "mutability": "mutable", "name": "_deps", "nameLocation": "2159:5:42", "nodeType": "VariableDeclaration", "scope": 12522, "src": "2143:21:42", "stateVariable": false, "storageLocation": "memory", "typeDescriptions": { "typeIdentifier": "t_array$_t_bytes4_$dyn_memory_ptr", "typeString": "bytes4[]" }, "typeName": { "baseType": { "id": 12462, "name": "bytes4", "nodeType": "ElementaryTypeName", "src": "2143:6:42", "typeDescriptions": { "typeIdentifier": "t_bytes4", "typeString": "bytes4" } }, "id": 12463, "nodeType": "ArrayTypeName", "src": "2143:8:42", "typeDescriptions": { "typeIdentifier": "t_array$_t_bytes4_$dyn_storage_ptr", "typeString": "bytes4[]" } }, "visibility": "internal" } ], "src": "2142:23:42" }, "scope": 12523, "src": "2088:593:42", "stateMutability": "view", "virtual": false, "visibility": "internal" } ], "scope": 12524, "src": "142:2542:42", "usedErrors": [], "usedEvents": [] } ], "src": "35:2649:42" }, "compiler": { "name": "solc", "version": "0.8.25+commit.b61c2a91.Emscripten.clang" }, "networks": {}, "schemaVersion": "3.4.16", "updatedAt": "2024-12-05T09:36:04.488Z", "devdoc": { "author": "The Witnet Foundation.", "kind": "dev", "methods": {}, "title": "WitnetFeeds data model.", "version": 1 }, "userdoc": { "kind": "user", "methods": {}, "version": 1 } }