|
| 1 | +import * as babel from '@babel/core'; |
| 2 | +import puppeteer from 'puppeteer'; |
| 3 | + |
| 4 | +export async function measurePerformance(code: any) { |
| 5 | + let options = { |
| 6 | + configFile: false, |
| 7 | + babelrc: false, |
| 8 | + presets: [['@babel/preset-env'], '@babel/preset-react'], |
| 9 | + }; |
| 10 | + |
| 11 | + const parsed = await babel.parseAsync(code, options); |
| 12 | + |
| 13 | + if (!parsed) { |
| 14 | + throw new Error('Failed to parse code'); |
| 15 | + } |
| 16 | + |
| 17 | + const transpiled = await transformAsync(parsed); |
| 18 | + |
| 19 | + if (!transpiled) { |
| 20 | + throw new Error('Failed to transpile code'); |
| 21 | + } |
| 22 | + |
| 23 | + const browser = await puppeteer.launch({ |
| 24 | + protocolTimeout: 600_000, |
| 25 | + }); |
| 26 | + |
| 27 | + const page = await browser.newPage(); |
| 28 | + await page.setViewport({width: 1280, height: 720}); |
| 29 | + const html = buildHtml(transpiled); |
| 30 | + await page.setContent(html, {waitUntil: 'networkidle0'}); |
| 31 | + |
| 32 | + await page.waitForFunction( |
| 33 | + 'window.__RESULT__ !== undefined && (window.__RESULT__.renderTime !== null || window.__RESULT__.error !== null)', |
| 34 | + {timeout: 600_000}, |
| 35 | + ); |
| 36 | + |
| 37 | + const result = await page.evaluate(() => { |
| 38 | + return (window as any).__RESULT__; |
| 39 | + }); |
| 40 | + |
| 41 | + await browser.close(); |
| 42 | + return result; |
| 43 | +} |
| 44 | + |
| 45 | +/** |
| 46 | + * Transform AST into browser-compatible JavaScript |
| 47 | + * @param {babel.types.File} ast - The AST to transform |
| 48 | + * @param {Object} opts - Transformation options |
| 49 | + * @returns {Promise<string>} - The transpiled code |
| 50 | + */ |
| 51 | +async function transformAsync(ast: babel.types.Node) { |
| 52 | + const result = await babel.transformFromAstAsync(ast, undefined, { |
| 53 | + filename: 'file.jsx', |
| 54 | + presets: [['@babel/preset-env'], '@babel/preset-react'], |
| 55 | + plugins: [ |
| 56 | + () => ({ |
| 57 | + visitor: { |
| 58 | + ImportDeclaration(path: any) { |
| 59 | + const value = path.node.source.value; |
| 60 | + if (value === 'react' || value === 'react-dom') { |
| 61 | + path.remove(); |
| 62 | + } |
| 63 | + }, |
| 64 | + }, |
| 65 | + }), |
| 66 | + ], |
| 67 | + }); |
| 68 | + |
| 69 | + return result?.code || ''; |
| 70 | +} |
| 71 | + |
| 72 | +function buildHtml(transpiled: string) { |
| 73 | + const html = ` |
| 74 | + <!DOCTYPE html> |
| 75 | + <html> |
| 76 | + <head> |
| 77 | + <meta charset="UTF-8"> |
| 78 | + <title>React Performance Test</title> |
| 79 | + <script crossorigin src="https://unpkg.com/react@18/umd/react.development.js"></script> |
| 80 | + <script crossorigin src="https://unpkg.com/react-dom@18/umd/react-dom.development.js"></script> |
| 81 | + <script src="https://unpkg.com/[email protected]/dist/web-vitals.iife.js"></script> |
| 82 | + <style> |
| 83 | + body { margin: 0; } |
| 84 | + #root { padding: 20px; } |
| 85 | + </style> |
| 86 | + </head> |
| 87 | + <body> |
| 88 | + <div id="root"></div> |
| 89 | + <script> |
| 90 | + window.__RESULT__ = { |
| 91 | + renderTime: null, |
| 92 | + webVitals: {}, |
| 93 | + reactProfilerMetrics: {}, |
| 94 | + error: null |
| 95 | + }; |
| 96 | +
|
| 97 | + webVitals.onCLS((metric) => { window.__RESULT__.webVitals.cls = metric; }); |
| 98 | + webVitals.onLCP((metric) => { window.__RESULT__.webVitals.lcp = metric; }); |
| 99 | + webVitals.onINP((metric) => { window.__RESULT__.webVitals.inp = metric; }); |
| 100 | + webVitals.onFID((metric) => { window.__RESULT__.webVitals.fid = metric; }); |
| 101 | + webVitals.onTTFB((metric) => { window.__RESULT__.webVitals.ttfb = metric; }); |
| 102 | +
|
| 103 | + try { |
| 104 | + ${transpiled} |
| 105 | +
|
| 106 | + window.App = App; |
| 107 | +
|
| 108 | + // Render the component to the DOM with profiling |
| 109 | + const AppComponent = window.App || (() => React.createElement('div', null, 'No App component exported')); |
| 110 | +
|
| 111 | + const root = ReactDOM.createRoot(document.getElementById('root'), { |
| 112 | + onUncaughtError: (error, errorInfo) => { |
| 113 | + window.__RESULT__.error = error; |
| 114 | + } |
| 115 | + }); |
| 116 | +
|
| 117 | + const renderStart = performance.now() |
| 118 | +
|
| 119 | + root.render( |
| 120 | + React.createElement(React.Profiler, { |
| 121 | + id: 'App', |
| 122 | + onRender: (id, phase, actualDuration, baseDuration, startTime, commitTime) => { |
| 123 | + window.__RESULT__.reactProfilerMetrics.id = id; |
| 124 | + window.__RESULT__.reactProfilerMetrics.phase = phase; |
| 125 | + window.__RESULT__.reactProfilerMetrics.actualDuration = actualDuration; |
| 126 | + window.__RESULT__.reactProfilerMetrics.baseDuration = baseDuration; |
| 127 | + window.__RESULT__.reactProfilerMetrics.startTime = startTime; |
| 128 | + window.__RESULT__.reactProfilerMetrics.commitTime = commitTime; |
| 129 | + } |
| 130 | + }, React.createElement(AppComponent)) |
| 131 | + ); |
| 132 | +
|
| 133 | + const renderEnd = performance.now(); |
| 134 | +
|
| 135 | + window.__RESULT__.renderTime = renderEnd - renderStart; |
| 136 | + } catch (error) { |
| 137 | + console.error('Error rendering component:', error); |
| 138 | + window.__RESULT__.error = { |
| 139 | + message: error.message, |
| 140 | + stack: error.stack |
| 141 | + }; |
| 142 | + } |
| 143 | + </script> |
| 144 | + <script> |
| 145 | + window.onerror = function(message, url, lineNumber) { |
| 146 | + window.__RESULT__.error = message; |
| 147 | + }; |
| 148 | + </script> |
| 149 | + </body> |
| 150 | + </html> |
| 151 | + `; |
| 152 | + |
| 153 | + return html; |
| 154 | +} |
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