{"componentChunkName":"component---node-modules-rocketseat-gatsby-theme-docs-core-src-templates-docs-query-js","path":"/code-style/UltraVaultRateProvider-UVR","result":{"data":{"mdx":{"id":"3f340a11-0a94-574a-ae48-9df8bd895a11","excerpt":"UVR-01C: Ineffectual Usage of Safe Arithmetics Type Severity Location Language Specific UltraVaultRateProvider.sol : •  I-1:   L179 •  I-2:   L181 Description…","fields":{"slug":"/code-style/UltraVaultRateProvider-UVR/"},"frontmatter":{"title":"UltraVaultRateProvider Code Style Findings","description":"Contains all the findings that relate to code style on the contract codebase","image":null,"disableTableOfContents":null},"body":"var _excluded = [\"components\"];\n\nfunction _extends() { _extends = Object.assign || function (target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i]; for (var key in source) { if (Object.prototype.hasOwnProperty.call(source, key)) { target[key] = source[key]; } } } return target; }; return _extends.apply(this, arguments); }\n\nfunction _objectWithoutProperties(source, excluded) { if (source == null) return {}; var target = _objectWithoutPropertiesLoose(source, excluded); var key, i; if (Object.getOwnPropertySymbols) { var sourceSymbolKeys = Object.getOwnPropertySymbols(source); for (i = 0; i < sourceSymbolKeys.length; i++) { key = sourceSymbolKeys[i]; if (excluded.indexOf(key) >= 0) continue; if (!Object.prototype.propertyIsEnumerable.call(source, key)) continue; target[key] = source[key]; } } return target; }\n\nfunction _objectWithoutPropertiesLoose(source, excluded) { if (source == null) return {}; var target = {}; var sourceKeys = Object.keys(source); var key, i; for (i = 0; i < sourceKeys.length; i++) { key = sourceKeys[i]; if (excluded.indexOf(key) >= 0) continue; target[key] = source[key]; } return target; }\n\n/* @jsxRuntime classic */\n\n/* @jsx mdx */\nvar _frontmatter = {\n  \"title\": \"UltraVaultRateProvider Code Style Findings\",\n  \"description\": 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mdx(\"p\", null, \"Given that safe arithmetics are toggled on by default in \", mdx(\"inlineCode\", {\n    parentName: \"p\"\n  }, \"pragma\"), \" versions of \", mdx(\"inlineCode\", {\n    parentName: \"p\"\n  }, \"0.8.X\"), \", we advise the linked statement to be wrapped in an \", mdx(\"inlineCode\", {\n    parentName: \"p\"\n  }, \"unchecked\"), \" code block thereby optimizing its execution cost.\"), mdx(\"h3\", {\n    \"id\": \"alleviation-28f27853965de07fb79f4f2b5fed696d35120032\",\n    \"style\": {\n      \"position\": \"relative\"\n    }\n  }, mdx(\"a\", {\n    parentName: \"h3\",\n    \"href\": \"#alleviation-28f27853965de07fb79f4f2b5fed696d35120032\",\n    \"aria-label\": \"alleviation 28f27853965de07fb79f4f2b5fed696d35120032 permalink\",\n    \"className\": \"anchor before\"\n  }, mdx(\"svg\", {\n    parentName: \"a\",\n    \"aria-hidden\": \"true\",\n    \"focusable\": \"false\",\n    \"height\": \"16\",\n    \"version\": \"1.1\",\n    \"viewBox\": \"0 0 16 16\",\n    \"width\": \"16\"\n  }, mdx(\"path\", {\n    parentName: \"svg\",\n    \"fillRule\": \"evenodd\",\n    \"d\": \"M4 9h1v1H4c-1.5 0-3-1.69-3-3.5S2.55 3 4 3h4c1.45 0 3 1.69 3 3.5 0 1.41-.91 2.72-2 3.25V8.59c.58-.45 1-1.27 1-2.09C10 5.22 8.98 4 8 4H4c-.98 0-2 1.22-2 2.5S3 9 4 9zm9-3h-1v1h1c1 0 2 1.22 2 2.5S13.98 12 13 12H9c-.98 0-2-1.22-2-2.5 0-.83.42-1.64 1-2.09V6.25c-1.09.53-2 1.84-2 3.25C6 11.31 7.55 13 9 13h4c1.45 0 3-1.69 3-3.5S14.5 6 13 6z\"\n  }))), \"Alleviation (28f27853965de07fb79f4f2b5fed696d35120032):\"), mdx(\"p\", null, \"Both decimal difference calculations have been wrapped in an \", mdx(\"inlineCode\", {\n    parentName: \"p\"\n  }, \"unchecked\"), \" code block, optimizing the code's gas cost.\"), mdx(ViewDiffButton, {\n    repoUrl: \"https://github.com/UltraYield/contracts\",\n    mainHash: \"b4cf59242df2566e10e0670040658f8d851cba1e\",\n    fixHash: \"28f27853965de07fb79f4f2b5fed696d35120032\",\n    gitHubIssue: \"0\",\n    mdxType: \"ViewDiffButton\"\n  }), mdx(\"h2\", {\n    \"id\": \"span-iduvr-02cuvr-02c-inexecutable-codespan\",\n    \"style\": {\n      \"position\": \"relative\"\n    }\n  }, mdx(\"a\", {\n    parentName: \"h2\",\n    \"href\": \"#span-iduvr-02cuvr-02c-inexecutable-codespan\",\n    \"aria-label\": \"span iduvr 02cuvr 02c inexecutable codespan permalink\",\n    \"className\": \"anchor before\"\n  }, mdx(\"svg\", {\n    parentName: \"a\",\n    \"aria-hidden\": \"true\",\n    \"focusable\": \"false\",\n    \"height\": \"16\",\n    \"version\": \"1.1\",\n    \"viewBox\": \"0 0 16 16\",\n    \"width\": \"16\"\n  }, mdx(\"path\", {\n    parentName: \"svg\",\n    \"fillRule\": \"evenodd\",\n    \"d\": \"M4 9h1v1H4c-1.5 0-3-1.69-3-3.5S2.55 3 4 3h4c1.45 0 3 1.69 3 3.5 0 1.41-.91 2.72-2 3.25V8.59c.58-.45 1-1.27 1-2.09C10 5.22 8.98 4 8 4H4c-.98 0-2 1.22-2 2.5S3 9 4 9zm9-3h-1v1h1c1 0 2 1.22 2 2.5S13.98 12 13 12H9c-.98 0-2-1.22-2-2.5 0-.83.42-1.64 1-2.09V6.25c-1.09.53-2 1.84-2 3.25C6 11.31 7.55 13 9 13h4c1.45 0 3-1.69 3-3.5S14.5 6 13 6z\"\n  }))), mdx(\"span\", {\n    id: \"UVR-02C\"\n  }, \"UVR-02C: Inexecutable Code\")), mdx(\"table\", null, mdx(\"thead\", {\n    parentName: \"table\"\n  }, mdx(\"tr\", {\n    parentName: \"thead\"\n  }, mdx(\"th\", {\n    parentName: \"tr\",\n    \"align\": null\n  }, \"Type\"), mdx(\"th\", {\n    parentName: \"tr\",\n    \"align\": null\n  }, \"Severity\"), mdx(\"th\", {\n    parentName: \"tr\",\n    \"align\": null\n  }, \"Location\"))), mdx(\"tbody\", {\n    parentName: \"table\"\n  }, mdx(\"tr\", {\n    parentName: \"tbody\"\n  }, mdx(\"td\", {\n    parentName: \"tr\",\n    \"align\": null\n  }, mdx(\"a\", {\n    parentName: \"td\",\n    \"href\": \"/reports/ultra-yield-vault-contracts-68aaf30fb32fb20018fa5e24/appendix/finding-types#gas-optimization\"\n  }, \"Gas Optimization\")), mdx(\"td\", {\n    parentName: \"tr\",\n    \"align\": null\n  }, mdx(\"img\", {\n    parentName: \"td\",\n    \"className\": \"o-severity o-informational\",\n    \"src\": 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parentName: \"h3\",\n    \"href\": \"#example-1\",\n    \"aria-label\": \"example 1 permalink\",\n    \"className\": \"anchor before\"\n  }, mdx(\"svg\", {\n    parentName: \"a\",\n    \"aria-hidden\": \"true\",\n    \"focusable\": \"false\",\n    \"height\": \"16\",\n    \"version\": \"1.1\",\n    \"viewBox\": \"0 0 16 16\",\n    \"width\": \"16\"\n  }, mdx(\"path\", {\n    parentName: \"svg\",\n    \"fillRule\": \"evenodd\",\n    \"d\": \"M4 9h1v1H4c-1.5 0-3-1.69-3-3.5S2.55 3 4 3h4c1.45 0 3 1.69 3 3.5 0 1.41-.91 2.72-2 3.25V8.59c.58-.45 1-1.27 1-2.09C10 5.22 8.98 4 8 4H4c-.98 0-2 1.22-2 2.5S3 9 4 9zm9-3h-1v1h1c1 0 2 1.22 2 2.5S13.98 12 13 12H9c-.98 0-2-1.22-2-2.5 0-.83.42-1.64 1-2.09V6.25c-1.09.53-2 1.84-2 3.25C6 11.31 7.55 13 9 13h4c1.45 0 3-1.69 3-3.5S14.5 6 13 6z\"\n  }))), \"Example:\"), mdx(\"pre\", null, mdx(\"code\", {\n    parentName: \"pre\",\n    \"className\": \"language-sol\",\n    \"metastring\": \"title=src/oracles/UltraVaultRateProvider.sol highlight={7,8} lineNumbers=true lineOffset=169\",\n    \"title\": \"src/oracles/UltraVaultRateProvider.sol\",\n    \"highlight\": \"{7,8}\",\n    \"lineNumbers\": \"true\",\n    \"lineOffset\": \"169\"\n  }, \"/// @dev Helps with decimals accounting\\nfunction _convertDecimals(\\n    uint256 amount, \\n    uint8 fromDecimals, \\n    uint8 toDecimals\\n) internal pure returns (uint256) {\\n    if (fromDecimals == toDecimals) {\\n        return amount;\\n    } else if (fromDecimals < toDecimals) {\\n        return amount * 10 ** (toDecimals - fromDecimals);\\n    } else {\\n        return amount / 10 ** (fromDecimals - toDecimals);\\n    }\\n}\\n\")), mdx(\"h3\", {\n    \"id\": \"recommendation-1\",\n    \"style\": {\n      \"position\": \"relative\"\n    }\n  }, mdx(\"a\", {\n    parentName: \"h3\",\n    \"href\": \"#recommendation-1\",\n    \"aria-label\": \"recommendation 1 permalink\",\n    \"className\": \"anchor before\"\n  }, mdx(\"svg\", {\n    parentName: \"a\",\n    \"aria-hidden\": \"true\",\n    \"focusable\": \"false\",\n    \"height\": \"16\",\n    \"version\": \"1.1\",\n    \"viewBox\": \"0 0 16 16\",\n    \"width\": \"16\"\n  }, mdx(\"path\", {\n    parentName: \"svg\",\n    \"fillRule\": \"evenodd\",\n    \"d\": \"M4 9h1v1H4c-1.5 0-3-1.69-3-3.5S2.55 3 4 3h4c1.45 0 3 1.69 3 3.5 0 1.41-.91 2.72-2 3.25V8.59c.58-.45 1-1.27 1-2.09C10 5.22 8.98 4 8 4H4c-.98 0-2 1.22-2 2.5S3 9 4 9zm9-3h-1v1h1c1 0 2 1.22 2 2.5S13.98 12 13 12H9c-.98 0-2-1.22-2-2.5 0-.83.42-1.64 1-2.09V6.25c-1.09.53-2 1.84-2 3.25C6 11.31 7.55 13 9 13h4c1.45 0 3-1.69 3-3.5S14.5 6 13 6z\"\n  }))), \"Recommendation:\"), mdx(\"p\", null, \"We advise the code to be optimized based on this premise, reducing its gas cost.\"), mdx(\"h3\", {\n    \"id\": \"alleviation-28f27853965de07fb79f4f2b5fed696d35120032-1\",\n    \"style\": {\n      \"position\": \"relative\"\n    }\n  }, mdx(\"a\", {\n    parentName: \"h3\",\n    \"href\": \"#alleviation-28f27853965de07fb79f4f2b5fed696d35120032-1\",\n    \"aria-label\": \"alleviation 28f27853965de07fb79f4f2b5fed696d35120032 1 permalink\",\n    \"className\": \"anchor before\"\n  }, mdx(\"svg\", {\n    parentName: \"a\",\n    \"aria-hidden\": \"true\",\n    \"focusable\": \"false\",\n    \"height\": \"16\",\n    \"version\": \"1.1\",\n    \"viewBox\": \"0 0 16 16\",\n    \"width\": \"16\"\n  }, mdx(\"path\", {\n    parentName: \"svg\",\n    \"fillRule\": \"evenodd\",\n    \"d\": \"M4 9h1v1H4c-1.5 0-3-1.69-3-3.5S2.55 3 4 3h4c1.45 0 3 1.69 3 3.5 0 1.41-.91 2.72-2 3.25V8.59c.58-.45 1-1.27 1-2.09C10 5.22 8.98 4 8 4H4c-.98 0-2 1.22-2 2.5S3 9 4 9zm9-3h-1v1h1c1 0 2 1.22 2 2.5S13.98 12 13 12H9c-.98 0-2-1.22-2-2.5 0-.83.42-1.64 1-2.09V6.25c-1.09.53-2 1.84-2 3.25C6 11.31 7.55 13 9 13h4c1.45 0 3-1.69 3-3.5S14.5 6 13 6z\"\n  }))), \"Alleviation (28f27853965de07fb79f4f2b5fed696d35120032):\"), mdx(\"p\", null, \"The code was updated to instead invoke the \", mdx(\"a\", {\n    parentName: \"p\",\n    \"href\": \"https://github.com/UltraYield/contracts/blob/28f27853965de07fb79f4f2b5fed696d35120032/src/oracles/UltraVaultRateProvider.sol#L171-L183\"\n  }, mdx(\"inlineCode\", {\n    parentName: \"a\"\n  }, \"UltraVaultRateProvider::_convertDecimals\")), \" function in the decimal equality case as well, addressing this exhibit indirectly.\"), mdx(ViewDiffButton, {\n    repoUrl: \"https://github.com/UltraYield/contracts\",\n    mainHash: \"b4cf59242df2566e10e0670040658f8d851cba1e\",\n    fixHash: \"28f27853965de07fb79f4f2b5fed696d35120032\",\n    gitHubIssue: \"0\",\n    mdxType: \"ViewDiffButton\"\n  }), mdx(\"h2\", {\n    \"id\": \"span-iduvr-03cuvr-03c-optimization-of-yielded-statementspan\",\n    \"style\": {\n      \"position\": \"relative\"\n    }\n  }, mdx(\"a\", {\n    parentName: \"h2\",\n    \"href\": \"#span-iduvr-03cuvr-03c-optimization-of-yielded-statementspan\",\n    \"aria-label\": \"span iduvr 03cuvr 03c optimization of yielded statementspan permalink\",\n    \"className\": \"anchor before\"\n  }, mdx(\"svg\", {\n    parentName: \"a\",\n    \"aria-hidden\": \"true\",\n    \"focusable\": \"false\",\n    \"height\": \"16\",\n    \"version\": \"1.1\",\n    \"viewBox\": \"0 0 16 16\",\n    \"width\": \"16\"\n  }, mdx(\"path\", {\n    parentName: \"svg\",\n    \"fillRule\": \"evenodd\",\n    \"d\": \"M4 9h1v1H4c-1.5 0-3-1.69-3-3.5S2.55 3 4 3h4c1.45 0 3 1.69 3 3.5 0 1.41-.91 2.72-2 3.25V8.59c.58-.45 1-1.27 1-2.09C10 5.22 8.98 4 8 4H4c-.98 0-2 1.22-2 2.5S3 9 4 9zm9-3h-1v1h1c1 0 2 1.22 2 2.5S13.98 12 13 12H9c-.98 0-2-1.22-2-2.5 0-.83.42-1.64 1-2.09V6.25c-1.09.53-2 1.84-2 3.25C6 11.31 7.55 13 9 13h4c1.45 0 3-1.69 3-3.5S14.5 6 13 6z\"\n  }))), mdx(\"span\", {\n    id: \"UVR-03C\"\n  }, \"UVR-03C: Optimization of Yielded Statement\")), mdx(\"table\", null, mdx(\"thead\", {\n    parentName: \"table\"\n  }, mdx(\"tr\", {\n    parentName: \"thead\"\n  }, mdx(\"th\", {\n    parentName: \"tr\",\n    \"align\": null\n  }, \"Type\"), mdx(\"th\", {\n    parentName: \"tr\",\n    \"align\": null\n  }, \"Severity\"), mdx(\"th\", {\n    parentName: \"tr\",\n    \"align\": null\n  }, \"Location\"))), mdx(\"tbody\", {\n    parentName: \"table\"\n  }, mdx(\"tr\", {\n    parentName: \"tbody\"\n  }, mdx(\"td\", {\n    parentName: \"tr\",\n    \"align\": null\n  }, mdx(\"a\", {\n    parentName: \"td\",\n    \"href\": \"/reports/ultra-yield-vault-contracts-68aaf30fb32fb20018fa5e24/appendix/finding-types#gas-optimization\"\n  }, \"Gas Optimization\")), mdx(\"td\", {\n    parentName: \"tr\",\n    \"align\": null\n  }, mdx(\"img\", {\n    parentName: \"td\",\n    \"className\": \"o-severity o-informational\",\n    \"src\": \"https://omniscia.io/report-assets/informational.png\"\n  })), mdx(\"td\", {\n    parentName: \"tr\",\n    \"align\": null\n  }, mdx(\"a\", {\n    parentName: \"td\",\n    \"href\": \"https://github.com/UltraYield/contracts/blob/b4cf59242df2566e10e0670040658f8d851cba1e/src/oracles/UltraVaultRateProvider.sol#L82-L85\"\n  }, \"UltraVaultRateProvider.sol:L82-L85\"))))), mdx(\"h3\", {\n    \"id\": \"description-2\",\n    \"style\": {\n      \"position\": \"relative\"\n    }\n  }, mdx(\"a\", {\n    parentName: \"h3\",\n    \"href\": \"#description-2\",\n    \"aria-label\": \"description 2 permalink\",\n    \"className\": \"anchor before\"\n  }, mdx(\"svg\", {\n    parentName: \"a\",\n    \"aria-hidden\": \"true\",\n    \"focusable\": \"false\",\n    \"height\": \"16\",\n    \"version\": \"1.1\",\n    \"viewBox\": \"0 0 16 16\",\n    \"width\": \"16\"\n  }, mdx(\"path\", {\n    parentName: \"svg\",\n    \"fillRule\": \"evenodd\",\n    \"d\": \"M4 9h1v1H4c-1.5 0-3-1.69-3-3.5S2.55 3 4 3h4c1.45 0 3 1.69 3 3.5 0 1.41-.91 2.72-2 3.25V8.59c.58-.45 1-1.27 1-2.09C10 5.22 8.98 4 8 4H4c-.98 0-2 1.22-2 2.5S3 9 4 9zm9-3h-1v1h1c1 0 2 1.22 2 2.5S13.98 12 13 12H9c-.98 0-2-1.22-2-2.5 0-.83.42-1.64 1-2.09V6.25c-1.09.53-2 1.84-2 3.25C6 11.31 7.55 13 9 13h4c1.45 0 3-1.69 3-3.5S14.5 6 13 6z\"\n  }))), \"Description:\"), mdx(\"p\", null, \"The \", mdx(\"a\", {\n    parentName: \"p\",\n    \"href\": \"https://github.com/UltraYield/contracts/blob/b4cf59242df2566e10e0670040658f8d851cba1e/src/oracles/UltraVaultRateProvider.sol#L80-L86\"\n  }, mdx(\"inlineCode\", {\n    parentName: \"a\"\n  }, \"UltraVaultRateProvider::isSupported\")), \" function will evaluate whether \", mdx(\"inlineCode\", {\n    parentName: \"p\"\n  }, \"data.isPegged\"), \" is \", mdx(\"inlineCode\", {\n    parentName: \"p\"\n  }, \"true\"), \", yield \", mdx(\"inlineCode\", {\n    parentName: \"p\"\n  }, \"true\"), \" in such a case, and yield \", mdx(\"inlineCode\", {\n    parentName: \"p\"\n  }, \"data.rateProvider != address(0)\"), \" in any other.\"), mdx(\"h3\", {\n    \"id\": \"example-2\",\n    \"style\": {\n      \"position\": \"relative\"\n    }\n  }, mdx(\"a\", {\n    parentName: \"h3\",\n    \"href\": \"#example-2\",\n    \"aria-label\": \"example 2 permalink\",\n    \"className\": \"anchor before\"\n  }, mdx(\"svg\", {\n    parentName: \"a\",\n    \"aria-hidden\": \"true\",\n    \"focusable\": \"false\",\n    \"height\": \"16\",\n    \"version\": \"1.1\",\n    \"viewBox\": \"0 0 16 16\",\n    \"width\": \"16\"\n  }, mdx(\"path\", {\n    parentName: \"svg\",\n    \"fillRule\": \"evenodd\",\n    \"d\": \"M4 9h1v1H4c-1.5 0-3-1.69-3-3.5S2.55 3 4 3h4c1.45 0 3 1.69 3 3.5 0 1.41-.91 2.72-2 3.25V8.59c.58-.45 1-1.27 1-2.09C10 5.22 8.98 4 8 4H4c-.98 0-2 1.22-2 2.5S3 9 4 9zm9-3h-1v1h1c1 0 2 1.22 2 2.5S13.98 12 13 12H9c-.98 0-2-1.22-2-2.5 0-.83.42-1.64 1-2.09V6.25c-1.09.53-2 1.84-2 3.25C6 11.31 7.55 13 9 13h4c1.45 0 3-1.69 3-3.5S14.5 6 13 6z\"\n  }))), \"Example:\"), mdx(\"pre\", null, mdx(\"code\", {\n    parentName: \"pre\",\n    \"className\": \"language-sol\",\n    \"metastring\": \"title=src/oracles/UltraVaultRateProvider.sol highlight={1,2,4} lineNumbers=true lineOffset=81\",\n    \"title\": \"src/oracles/UltraVaultRateProvider.sol\",\n    \"highlight\": \"{1,2,4}\",\n    \"lineNumbers\": \"true\",\n    \"lineOffset\": \"81\"\n  }, \"if (data.isPegged) {\\n    return true;\\n}\\nreturn data.rateProvider != address(0);\\n\")), mdx(\"h3\", {\n    \"id\": \"recommendation-2\",\n    \"style\": {\n      \"position\": \"relative\"\n    }\n  }, mdx(\"a\", {\n    parentName: \"h3\",\n    \"href\": \"#recommendation-2\",\n    \"aria-label\": \"recommendation 2 permalink\",\n    \"className\": \"anchor before\"\n  }, mdx(\"svg\", {\n    parentName: \"a\",\n    \"aria-hidden\": \"true\",\n    \"focusable\": \"false\",\n    \"height\": \"16\",\n    \"version\": \"1.1\",\n    \"viewBox\": \"0 0 16 16\",\n    \"width\": \"16\"\n  }, mdx(\"path\", {\n    parentName: \"svg\",\n    \"fillRule\": \"evenodd\",\n    \"d\": \"M4 9h1v1H4c-1.5 0-3-1.69-3-3.5S2.55 3 4 3h4c1.45 0 3 1.69 3 3.5 0 1.41-.91 2.72-2 3.25V8.59c.58-.45 1-1.27 1-2.09C10 5.22 8.98 4 8 4H4c-.98 0-2 1.22-2 2.5S3 9 4 9zm9-3h-1v1h1c1 0 2 1.22 2 2.5S13.98 12 13 12H9c-.98 0-2-1.22-2-2.5 0-.83.42-1.64 1-2.09V6.25c-1.09.53-2 1.84-2 3.25C6 11.31 7.55 13 9 13h4c1.45 0 3-1.69 3-3.5S14.5 6 13 6z\"\n  }))), \"Recommendation:\"), mdx(\"p\", null, \"We advise the code to directly yield \", mdx(\"inlineCode\", {\n    parentName: \"p\"\n  }, \"data.isPegged || data.rateProvider != address(0)\"), \", optimizing the code's gas cost.\"), mdx(\"h3\", {\n    \"id\": \"alleviation-28f27853965de07fb79f4f2b5fed696d35120032-2\",\n    \"style\": {\n      \"position\": \"relative\"\n    }\n  }, mdx(\"a\", {\n    parentName: \"h3\",\n    \"href\": \"#alleviation-28f27853965de07fb79f4f2b5fed696d35120032-2\",\n    \"aria-label\": \"alleviation 28f27853965de07fb79f4f2b5fed696d35120032 2 permalink\",\n    \"className\": \"anchor before\"\n  }, mdx(\"svg\", {\n    parentName: \"a\",\n    \"aria-hidden\": \"true\",\n    \"focusable\": \"false\",\n    \"height\": \"16\",\n    \"version\": \"1.1\",\n    \"viewBox\": \"0 0 16 16\",\n    \"width\": \"16\"\n  }, mdx(\"path\", {\n    parentName: \"svg\",\n    \"fillRule\": \"evenodd\",\n    \"d\": \"M4 9h1v1H4c-1.5 0-3-1.69-3-3.5S2.55 3 4 3h4c1.45 0 3 1.69 3 3.5 0 1.41-.91 2.72-2 3.25V8.59c.58-.45 1-1.27 1-2.09C10 5.22 8.98 4 8 4H4c-.98 0-2 1.22-2 2.5S3 9 4 9zm9-3h-1v1h1c1 0 2 1.22 2 2.5S13.98 12 13 12H9c-.98 0-2-1.22-2-2.5 0-.83.42-1.64 1-2.09V6.25c-1.09.53-2 1.84-2 3.25C6 11.31 7.55 13 9 13h4c1.45 0 3-1.69 3-3.5S14.5 6 13 6z\"\n  }))), \"Alleviation (28f27853965de07fb79f4f2b5fed696d35120032):\"), mdx(\"p\", null, \"The code was updated to yield an optimized conditional statement, addressing this exhibit.\"), mdx(ViewDiffButton, {\n    repoUrl: \"https://github.com/UltraYield/contracts\",\n    mainHash: \"b4cf59242df2566e10e0670040658f8d851cba1e\",\n    fixHash: \"28f27853965de07fb79f4f2b5fed696d35120032\",\n    gitHubIssue: \"0\",\n    mdxType: \"ViewDiffButton\"\n  }), mdx(\"h2\", {\n    \"id\": \"span-iduvr-04cuvr-04c-repetitive-invocations-of-storage-offsetspan\",\n    \"style\": {\n      \"position\": \"relative\"\n    }\n  }, mdx(\"a\", {\n    parentName: \"h2\",\n    \"href\": \"#span-iduvr-04cuvr-04c-repetitive-invocations-of-storage-offsetspan\",\n    \"aria-label\": \"span iduvr 04cuvr 04c repetitive invocations of storage offsetspan permalink\",\n    \"className\": \"anchor before\"\n  }, mdx(\"svg\", {\n    parentName: \"a\",\n    \"aria-hidden\": \"true\",\n    \"focusable\": \"false\",\n    \"height\": \"16\",\n    \"version\": \"1.1\",\n    \"viewBox\": \"0 0 16 16\",\n    \"width\": \"16\"\n  }, mdx(\"path\", {\n    parentName: \"svg\",\n    \"fillRule\": \"evenodd\",\n    \"d\": \"M4 9h1v1H4c-1.5 0-3-1.69-3-3.5S2.55 3 4 3h4c1.45 0 3 1.69 3 3.5 0 1.41-.91 2.72-2 3.25V8.59c.58-.45 1-1.27 1-2.09C10 5.22 8.98 4 8 4H4c-.98 0-2 1.22-2 2.5S3 9 4 9zm9-3h-1v1h1c1 0 2 1.22 2 2.5S13.98 12 13 12H9c-.98 0-2-1.22-2-2.5 0-.83.42-1.64 1-2.09V6.25c-1.09.53-2 1.84-2 3.25C6 11.31 7.55 13 9 13h4c1.45 0 3-1.69 3-3.5S14.5 6 13 6z\"\n  }))), mdx(\"span\", {\n    id: \"UVR-04C\"\n  }, \"UVR-04C: Repetitive Invocations of Storage Offset\")), mdx(\"table\", null, mdx(\"thead\", {\n    parentName: \"table\"\n  }, mdx(\"tr\", {\n    parentName: \"thead\"\n  }, mdx(\"th\", {\n    parentName: \"tr\",\n    \"align\": null\n  }, \"Type\"), mdx(\"th\", {\n    parentName: \"tr\",\n    \"align\": null\n  }, \"Severity\"), mdx(\"th\", {\n    parentName: \"tr\",\n    \"align\": null\n  }, \"Location\"))), mdx(\"tbody\", {\n    parentName: \"table\"\n  }, mdx(\"tr\", {\n    parentName: \"tbody\"\n  }, mdx(\"td\", {\n    parentName: \"tr\",\n    \"align\": null\n  }, mdx(\"a\", {\n    parentName: \"td\",\n    \"href\": \"/reports/ultra-yield-vault-contracts-68aaf30fb32fb20018fa5e24/appendix/finding-types#gas-optimization\"\n  }, \"Gas Optimization\")), mdx(\"td\", {\n    parentName: \"tr\",\n    \"align\": null\n  }, mdx(\"img\", {\n    parentName: \"td\",\n    \"className\": \"o-severity o-informational\",\n    \"src\": \"https://omniscia.io/report-assets/informational.png\"\n  })), mdx(\"td\", {\n    parentName: \"tr\",\n    \"align\": null\n  }, mdx(\"b\", null, \"UltraVaultRateProvider.sol\"), \":\", mdx(\"br\", null), \"\\u2022 \", mdx(\"span\", {\n    title: \"Instance 1\"\n  }, \"I-1:\"), \" \", mdx(\"a\", {\n    parentName: \"td\",\n    \"href\": \"https://github.com/UltraYield/contracts/blob/b4cf59242df2566e10e0670040658f8d851cba1e/src/oracles/UltraVaultRateProvider.sol#L91\"\n  }, \"L91\"), \", \", mdx(\"a\", {\n    parentName: \"td\",\n    \"href\": \"https://github.com/UltraYield/contracts/blob/b4cf59242df2566e10e0670040658f8d851cba1e/src/oracles/UltraVaultRateProvider.sol#L100\"\n  }, \"L100\"), mdx(\"br\", null), \"\\u2022 \", mdx(\"span\", {\n    title: \"Instance 2\"\n  }, \"I-2:\"), \" \", mdx(\"a\", {\n    parentName: \"td\",\n    \"href\": \"https://github.com/UltraYield/contracts/blob/b4cf59242df2566e10e0670040658f8d851cba1e/src/oracles/UltraVaultRateProvider.sol#L115\"\n  }, \"L115\"), \", \", mdx(\"a\", {\n    parentName: \"td\",\n    \"href\": \"https://github.com/UltraYield/contracts/blob/b4cf59242df2566e10e0670040658f8d851cba1e/src/oracles/UltraVaultRateProvider.sol#L116\"\n  }, \"L116\"), mdx(\"br\", null), \"\\u2022 \", mdx(\"span\", {\n    title: \"Instance 3\"\n  }, \"I-3:\"), \" \", mdx(\"a\", {\n    parentName: \"td\",\n    \"href\": \"https://github.com/UltraYield/contracts/blob/b4cf59242df2566e10e0670040658f8d851cba1e/src/oracles/UltraVaultRateProvider.sol#L122\"\n  }, \"L122\"), \", \", mdx(\"a\", {\n    parentName: \"td\",\n    \"href\": \"https://github.com/UltraYield/contracts/blob/b4cf59242df2566e10e0670040658f8d851cba1e/src/oracles/UltraVaultRateProvider.sol#L123\"\n  }, \"L123\"), \", \", mdx(\"a\", {\n    parentName: \"td\",\n    \"href\": \"https://github.com/UltraYield/contracts/blob/b4cf59242df2566e10e0670040658f8d851cba1e/src/oracles/UltraVaultRateProvider.sol#L126\"\n  }, \"L126\"), mdx(\"br\", null), \"\\u2022 \", mdx(\"span\", {\n    title: \"Instance 4\"\n  }, \"I-4:\"), \" \", mdx(\"a\", {\n    parentName: \"td\",\n    \"href\": \"https://github.com/UltraYield/contracts/blob/b4cf59242df2566e10e0670040658f8d851cba1e/src/oracles/UltraVaultRateProvider.sol#L132\"\n  }, \"L132\"), \", \", mdx(\"a\", {\n    parentName: \"td\",\n    \"href\": \"https://github.com/UltraYield/contracts/blob/b4cf59242df2566e10e0670040658f8d851cba1e/src/oracles/UltraVaultRateProvider.sol#L133\"\n  }, \"L133\"), mdx(\"br\", null), \"\\u2022 \", mdx(\"span\", {\n    title: \"Instance 5\"\n  }, \"I-5:\"), \" \", mdx(\"a\", {\n    parentName: \"td\",\n    \"href\": \"https://github.com/UltraYield/contracts/blob/b4cf59242df2566e10e0670040658f8d851cba1e/src/oracles/UltraVaultRateProvider.sol#L150\"\n  }, \"L150\"), \", \", mdx(\"a\", {\n    parentName: \"td\",\n    \"href\": \"https://github.com/UltraYield/contracts/blob/b4cf59242df2566e10e0670040658f8d851cba1e/src/oracles/UltraVaultRateProvider.sol#L151\"\n  }, \"L151\"))))), mdx(\"h3\", {\n    \"id\": \"description-3\",\n    \"style\": {\n      \"position\": \"relative\"\n    }\n  }, mdx(\"a\", {\n    parentName: \"h3\",\n    \"href\": \"#description-3\",\n    \"aria-label\": \"description 3 permalink\",\n    \"className\": \"anchor before\"\n  }, mdx(\"svg\", {\n    parentName: \"a\",\n    \"aria-hidden\": \"true\",\n    \"focusable\": \"false\",\n    \"height\": \"16\",\n    \"version\": \"1.1\",\n    \"viewBox\": \"0 0 16 16\",\n    \"width\": \"16\"\n  }, mdx(\"path\", {\n    parentName: \"svg\",\n    \"fillRule\": \"evenodd\",\n    \"d\": \"M4 9h1v1H4c-1.5 0-3-1.69-3-3.5S2.55 3 4 3h4c1.45 0 3 1.69 3 3.5 0 1.41-.91 2.72-2 3.25V8.59c.58-.45 1-1.27 1-2.09C10 5.22 8.98 4 8 4H4c-.98 0-2 1.22-2 2.5S3 9 4 9zm9-3h-1v1h1c1 0 2 1.22 2 2.5S13.98 12 13 12H9c-.98 0-2-1.22-2-2.5 0-.83.42-1.64 1-2.09V6.25c-1.09.53-2 1.84-2 3.25C6 11.31 7.55 13 9 13h4c1.45 0 3-1.69 3-3.5S14.5 6 13 6z\"\n  }))), \"Description:\"), mdx(\"p\", null, \"The referenced statement pairs will end up invoking the \", mdx(\"a\", {\n    parentName: \"p\",\n    \"href\": \"https://github.com/UltraYield/contracts/blob/b4cf59242df2566e10e0670040658f8d851cba1e/src/oracles/UltraVaultRateProvider.sol#L28-L32\"\n  }, mdx(\"inlineCode\", {\n    parentName: \"a\"\n  }, \"UltraVaultRateProvider::_getStorage\")), \" function multiple times within the same code block redundantly.\"), mdx(\"h3\", {\n    \"id\": \"example-3\",\n    \"style\": {\n      \"position\": \"relative\"\n    }\n  }, mdx(\"a\", {\n    parentName: \"h3\",\n    \"href\": \"#example-3\",\n    \"aria-label\": \"example 3 permalink\",\n    \"className\": \"anchor before\"\n  }, mdx(\"svg\", {\n    parentName: \"a\",\n    \"aria-hidden\": \"true\",\n    \"focusable\": \"false\",\n    \"height\": \"16\",\n    \"version\": \"1.1\",\n    \"viewBox\": \"0 0 16 16\",\n    \"width\": \"16\"\n  }, mdx(\"path\", {\n    parentName: \"svg\",\n    \"fillRule\": \"evenodd\",\n    \"d\": \"M4 9h1v1H4c-1.5 0-3-1.69-3-3.5S2.55 3 4 3h4c1.45 0 3 1.69 3 3.5 0 1.41-.91 2.72-2 3.25V8.59c.58-.45 1-1.27 1-2.09C10 5.22 8.98 4 8 4H4c-.98 0-2 1.22-2 2.5S3 9 4 9zm9-3h-1v1h1c1 0 2 1.22 2 2.5S13.98 12 13 12H9c-.98 0-2-1.22-2-2.5 0-.83.42-1.64 1-2.09V6.25c-1.09.53-2 1.84-2 3.25C6 11.31 7.55 13 9 13h4c1.45 0 3-1.69 3-3.5S14.5 6 13 6z\"\n  }))), \"Example:\"), mdx(\"pre\", null, mdx(\"code\", {\n    parentName: \"pre\",\n    \"className\": \"language-sol\",\n    \"metastring\": \"title=src/oracles/UltraVaultRateProvider.sol highlight={2,3,6} lineNumbers=true lineOffset=120\",\n    \"title\": \"src/oracles/UltraVaultRateProvider.sol\",\n    \"highlight\": \"{2,3,6}\",\n    \"lineNumbers\": \"true\",\n    \"lineOffset\": \"120\"\n  }, \"function updateRateProvider(address asset, address rateProvider) external onlyOwner {\\n    require(asset != baseAsset(), CannotUpdateBaseAsset());\\n    require(!supportedAssets(asset).isPegged, AssetNotSupported());\\n    require(rateProvider != address(0), InvalidRateProvider());\\n\\n    _getStorage().supportedAssets[asset].rateProvider = rateProvider;\\n    emit RateProviderUpdated(address(asset), rateProvider);\\n}\\n\")), mdx(\"h3\", {\n    \"id\": \"recommendation-3\",\n    \"style\": {\n      \"position\": \"relative\"\n    }\n  }, mdx(\"a\", {\n    parentName: \"h3\",\n    \"href\": \"#recommendation-3\",\n    \"aria-label\": \"recommendation 3 permalink\",\n    \"className\": \"anchor before\"\n  }, mdx(\"svg\", {\n    parentName: \"a\",\n    \"aria-hidden\": \"true\",\n    \"focusable\": \"false\",\n    \"height\": \"16\",\n    \"version\": \"1.1\",\n    \"viewBox\": \"0 0 16 16\",\n    \"width\": \"16\"\n  }, mdx(\"path\", {\n    parentName: \"svg\",\n    \"fillRule\": \"evenodd\",\n    \"d\": \"M4 9h1v1H4c-1.5 0-3-1.69-3-3.5S2.55 3 4 3h4c1.45 0 3 1.69 3 3.5 0 1.41-.91 2.72-2 3.25V8.59c.58-.45 1-1.27 1-2.09C10 5.22 8.98 4 8 4H4c-.98 0-2 1.22-2 2.5S3 9 4 9zm9-3h-1v1h1c1 0 2 1.22 2 2.5S13.98 12 13 12H9c-.98 0-2-1.22-2-2.5 0-.83.42-1.64 1-2.09V6.25c-1.09.53-2 1.84-2 3.25C6 11.31 7.55 13 9 13h4c1.45 0 3-1.69 3-3.5S14.5 6 13 6z\"\n  }))), \"Recommendation:\"), mdx(\"p\", null, \"We advise the \", mdx(\"a\", {\n    parentName: \"p\",\n    \"href\": \"https://github.com/UltraYield/contracts/blob/b4cf59242df2566e10e0670040658f8d851cba1e/src/oracles/UltraVaultRateProvider.sol#L28-L32\"\n  }, mdx(\"inlineCode\", {\n    parentName: \"a\"\n  }, \"UltraVaultRateProvider::_getStorage\")), \" function to be invoked once, cached to a local variable, and then re-used to optimize the code's gas cost.\"), mdx(\"h3\", {\n    \"id\": \"alleviation-28f2785396\",\n    \"style\": {\n      \"position\": \"relative\"\n    }\n  }, mdx(\"a\", {\n    parentName: \"h3\",\n    \"href\": \"#alleviation-28f2785396\",\n    \"aria-label\": \"alleviation 28f2785396 permalink\",\n    \"className\": \"anchor before\"\n  }, mdx(\"svg\", {\n    parentName: \"a\",\n    \"aria-hidden\": \"true\",\n    \"focusable\": \"false\",\n    \"height\": \"16\",\n    \"version\": \"1.1\",\n    \"viewBox\": \"0 0 16 16\",\n    \"width\": \"16\"\n  }, mdx(\"path\", {\n    parentName: \"svg\",\n    \"fillRule\": \"evenodd\",\n    \"d\": \"M4 9h1v1H4c-1.5 0-3-1.69-3-3.5S2.55 3 4 3h4c1.45 0 3 1.69 3 3.5 0 1.41-.91 2.72-2 3.25V8.59c.58-.45 1-1.27 1-2.09C10 5.22 8.98 4 8 4H4c-.98 0-2 1.22-2 2.5S3 9 4 9zm9-3h-1v1h1c1 0 2 1.22 2 2.5S13.98 12 13 12H9c-.98 0-2-1.22-2-2.5 0-.83.42-1.64 1-2.09V6.25c-1.09.53-2 1.84-2 3.25C6 11.31 7.55 13 9 13h4c1.45 0 3-1.69 3-3.5S14.5 6 13 6z\"\n  }))), \"Alleviation (28f2785396):\"), mdx(\"p\", null, \"The optimization was solely applied to the example instance, rendering instances \", mdx(\"inlineCode\", {\n    parentName: \"p\"\n  }, \"1\"), \", \", mdx(\"inlineCode\", {\n    parentName: \"p\"\n  }, \"3\"), \", \", mdx(\"inlineCode\", {\n    parentName: \"p\"\n  }, \"4\"), \", and \", mdx(\"inlineCode\", {\n    parentName: \"p\"\n  }, \"5\"), \" to remain unaddressed.\"), mdx(\"h3\", {\n    \"id\": \"alleviation-2d9651dbd7\",\n    \"style\": {\n      \"position\": \"relative\"\n    }\n  }, mdx(\"a\", {\n    parentName: \"h3\",\n    \"href\": \"#alleviation-2d9651dbd7\",\n    \"aria-label\": \"alleviation 2d9651dbd7 permalink\",\n    \"className\": \"anchor before\"\n  }, mdx(\"svg\", {\n    parentName: \"a\",\n    \"aria-hidden\": \"true\",\n    \"focusable\": \"false\",\n    \"height\": \"16\",\n    \"version\": \"1.1\",\n    \"viewBox\": \"0 0 16 16\",\n    \"width\": \"16\"\n  }, mdx(\"path\", {\n    parentName: \"svg\",\n    \"fillRule\": \"evenodd\",\n    \"d\": \"M4 9h1v1H4c-1.5 0-3-1.69-3-3.5S2.55 3 4 3h4c1.45 0 3 1.69 3 3.5 0 1.41-.91 2.72-2 3.25V8.59c.58-.45 1-1.27 1-2.09C10 5.22 8.98 4 8 4H4c-.98 0-2 1.22-2 2.5S3 9 4 9zm9-3h-1v1h1c1 0 2 1.22 2 2.5S13.98 12 13 12H9c-.98 0-2-1.22-2-2.5 0-.83.42-1.64 1-2.09V6.25c-1.09.53-2 1.84-2 3.25C6 11.31 7.55 13 9 13h4c1.45 0 3-1.69 3-3.5S14.5 6 13 6z\"\n  }))), \"Alleviation (2d9651dbd7):\"), mdx(\"p\", null, \"All remaining instances have been optimized per our recommendation, addressing this exhibit in full.\"), mdx(ViewDiffButton, {\n    repoUrl: \"https://github.com/UltraYield/contracts\",\n    mainHash: \"b4cf59242df2566e10e0670040658f8d851cba1e\",\n    fixHash: \"2d9651dbd716064ba7508dce1505de0faa36cde0\",\n    gitHubIssue: \"0\",\n    mdxType: \"ViewDiffButton\"\n  }));\n}\n;\nMDXContent.isMDXComponent = true;","headings":[{"depth":2,"value":"<span id=\"UVR-01C\">UVR-01C: Ineffectual Usage of Safe Arithmetics</span>"},{"depth":3,"value":"Description:"},{"depth":3,"value":"Example:"},{"depth":3,"value":"Recommendation:"},{"depth":3,"value":"Alleviation (28f27853965de07fb79f4f2b5fed696d35120032):"},{"depth":2,"value":"<span id=\"UVR-02C\">UVR-02C: Inexecutable Code</span>"},{"depth":3,"value":"Description:"},{"depth":3,"value":"Example:"},{"depth":3,"value":"Recommendation:"},{"depth":3,"value":"Alleviation (28f27853965de07fb79f4f2b5fed696d35120032):"},{"depth":2,"value":"<span id=\"UVR-03C\">UVR-03C: Optimization of Yielded Statement</span>"},{"depth":3,"value":"Description:"},{"depth":3,"value":"Example:"},{"depth":3,"value":"Recommendation:"},{"depth":3,"value":"Alleviation (28f27853965de07fb79f4f2b5fed696d35120032):"},{"depth":2,"value":"<span id=\"UVR-04C\">UVR-04C: Repetitive Invocations of Storage Offset</span>"},{"depth":3,"value":"Description:"},{"depth":3,"value":"Example:"},{"depth":3,"value":"Recommendation:"},{"depth":3,"value":"Alleviation (28f2785396):"},{"depth":3,"value":"Alleviation (2d9651dbd7):"}]}},"pageContext":{"slug":"/code-style/UltraVaultRateProvider-UVR/","prev":{"label":"UltraVaultOracle.sol (UVO-C)","link":"/code-style/UltraVaultOracle-UVO"},"next":{"label":"VaultPriceManager.sol (VPM-C)","link":"/code-style/VaultPriceManager-VPM"}}},"staticQueryHashes":["1954253342","2328931024","2501019404","973074209"]}