moonwalkerswap-v2-periphery

{ "contractName": "MoonwalkerswapV2OracleLibrary", "abi": [], "metadata": 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"bytecode": "0x60566023600b82828239805160001a607314601657fe5b30600052607381538281f3fe73000000000000000000000000000000000000000030146080604052600080fdfea2646970667358221220737434dd58f05f11f8ea137ab93e76187488b1327ba2f16b558c0fc8946a07ce64736f6c63430006060033", "deployedBytecode": "0x73000000000000000000000000000000000000000030146080604052600080fdfea2646970667358221220737434dd58f05f11f8ea137ab93e76187488b1327ba2f16b558c0fc8946a07ce64736f6c63430006060033", "immutableReferences": {}, "sourceMap": "263:1454:12:-:0;;132:2:-1;166:7;155:9;146:7;137:37;255:7;249:14;246:1;241:23;235:4;232:33;222:2;;269:9;222:2;293:9;290:1;283:20;323:4;314:7;306:22;347:7;338;331:24", "deployedSourceMap": "263:1454:12:-:0;;;;;;12:1:-1;9;2:12", "source": "pragma solidity >=0.5.0;\n\nimport 'moonwalkerswap-v2-core/contracts/interfaces/IMoonwalkerPair.sol';\nimport 'moonwalkerswap-libraries/contracts/libraries/FixedPoint.sol';\n\n// library with helper methods for oracles that are concerned with computing average prices\nlibrary MoonwalkerswapV2OracleLibrary {\n using FixedPoint for *;\n\n // helper function that returns the current block timestamp within the range of uint32, i.e. [0, 2**32 - 1]\n function currentBlockTimestamp() internal view returns (uint32) {\n return uint32(block.timestamp % 2 ** 32);\n }\n\n // produces the cumulative price using counterfactuals to save gas and avoid a call to sync.\n function currentCumulativePrices(\n address pair\n ) internal view returns (uint price0Cumulative, uint price1Cumulative, uint32 blockTimestamp) {\n blockTimestamp = currentBlockTimestamp();\n price0Cumulative = IMoonwalkerPair(pair).price0CumulativeLast();\n price1Cumulative = IMoonwalkerPair(pair).price1CumulativeLast();\n\n // if time has elapsed since the last update on the pair, mock the accumulated price values\n (uint112 reserve0, uint112 reserve1, uint32 blockTimestampLast) = IMoonwalkerPair(pair).getReserves();\n if (blockTimestampLast != blockTimestamp) {\n // subtraction overflow is desired\n uint32 timeElapsed = blockTimestamp - blockTimestampLast;\n // addition overflow is desired\n // counterfactual\n price0Cumulative += uint(FixedPoint.fraction(reserve1, reserve0)._x) * timeElapsed;\n // counterfactual\n price1Cumulative += uint(FixedPoint.fraction(reserve0, reserve1)._x) * timeElapsed;\n }\n }\n}\n", "sourcePath": "/Users/warrenmason/Documents/UniswapV3Contracts/Core/LiveContracts/Moonwalkerswap-v2-periphery/contracts/libraries/MoonwalkerswapV2OracleLibrary.sol", "ast": { "absolutePath": "/Users/warrenmason/Documents/UniswapV3Contracts/Core/LiveContracts/Moonwalkerswap-v2-periphery/contracts/libraries/MoonwalkerswapV2OracleLibrary.sol", "exportedSymbols": { "MoonwalkerswapV2OracleLibrary": [ 5292 ] }, "id": 5293, "nodeType": "SourceUnit", "nodes": [ { "id": 5187, "literals": [ "solidity", ">=", "0.5", ".0" ], "nodeType": "PragmaDirective", "src": "0:24:12" }, { "absolutePath": "moonwalkerswap-v2-core/contracts/interfaces/IMoonwalkerPair.sol", "file": "moonwalkerswap-v2-core/contracts/interfaces/IMoonwalkerPair.sol", "id": 5188, "nodeType": "ImportDirective", "scope": 5293, "sourceUnit": 8545, "src": "26:73:12", "symbolAliases": [], "unitAlias": "" }, { "absolutePath": "moonwalkerswap-libraries/contracts/libraries/FixedPoint.sol", "file": "moonwalkerswap-libraries/contracts/libraries/FixedPoint.sol", "id": 5189, "nodeType": "ImportDirective", "scope": 5293, "sourceUnit": 7859, "src": "100:69:12", "symbolAliases": [], "unitAlias": "" }, { "abstract": false, "baseContracts": [], "contractDependencies": [], "contractKind": "library", "documentation": null, "fullyImplemented": true, "id": 5292, "linearizedBaseContracts": [ 5292 ], "name": "MoonwalkerswapV2OracleLibrary", "nodeType": "ContractDefinition", "nodes": [ { "id": 5191, "libraryName": { "contractScope": null, "id": 5190, "name": "FixedPoint", "nodeType": "UserDefinedTypeName", "referencedDeclaration": 7858, "src": "313:10:12", "typeDescriptions": { "typeIdentifier": "t_contract$_FixedPoint_$7858", "typeString": "library FixedPoint" } }, "nodeType": "UsingForDirective", "src": "307:23:12", "typeName": null }, { "body": { "id": 5206, "nodeType": "Block", "src": "512:57:12", "statements": [ { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "commonType": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "id": 5203, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "expression": { "argumentTypes": null, "id": 5198, "name": "block", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": -4, "src": "536:5:12", "typeDescriptions": { "typeIdentifier": "t_magic_block", "typeString": "block" } }, "id": 5199, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "timestamp", "nodeType": "MemberAccess", "referencedDeclaration": null, "src": "536:15:12", "typeDescriptions": { 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"nodeType": "FunctionCall", "src": "529:33:12", "tryCall": false, "typeDescriptions": { "typeIdentifier": "t_uint32", "typeString": "uint32" } }, "functionReturnParameters": 5195, "id": 5205, "nodeType": "Return", "src": "522:40:12" } ] }, "documentation": null, "id": 5207, "implemented": true, "kind": "function", "modifiers": [], "name": "currentBlockTimestamp", "nodeType": "FunctionDefinition", "overrides": null, "parameters": { "id": 5192, "nodeType": "ParameterList", "parameters": [], "src": "478:2:12" }, "returnParameters": { "id": 5195, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 5194, "mutability": "mutable", "name": "", "nodeType": "VariableDeclaration", "overrides": null, "scope": 5207, "src": "504:6:12", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint32", "typeString": "uint32" }, "typeName": { "id": 5193, "name": "uint32", "nodeType": "ElementaryTypeName", "src": "504:6:12", "typeDescriptions": 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