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import { compile, CompileOptions } from 'https://deno.land/x/aleph@v0.2.28/tsc/compile.ts'import { walk } from 'https://deno.land/std@0.90.0/fs/walk.ts'import { resolve } from 'https://deno.land/std@0.90.0/path/mod.ts'import { green, red, yellow } from 'https://deno.land/std@0.90.0/fmt/colors.ts'import { createHash } from 'https://deno.land/std@0.90.0/hash/mod.ts'import init, { transformSync } from './dist/wasm-pack.js'import getWasmData from './dist/wasm.js'
function tsc(source: string, opts: any) {  const compileOptions: CompileOptions = {    mode: opts.isDev ? 'development' : 'production',    target: 'es2020',    reactRefresh: opts.isDev,    rewriteImportPath: (path: string) => path.replace('https://', '/-/'),    signUseDeno: (id: string) => {      const sig = 'useDeno.' + createHash('sha1').update(id).toString().slice(0, 9)      return sig    }  }  compile(opts.filename, source, compileOptions)}
/** * colored diff * - red: 0.0 - 1.0 slower * - yellow: 1.0 - 10.0 faster * - green: >= 10.0 faster as expected */function colorDiff(d: number) {  let cf = green  if (d < 1) {    cf = red  } else if (d < 10) {    cf = yellow  }  return cf(d.toFixed(2) + 'x')}
async function benchmark() {  const sourceFiles: Array<{ code: string, filename: string }> = []  const walkOptions = { includeDirs: false, exts: ['ts', '.tsx'], skip: [/[\._](test|d)\.tsx?$/i, /\/compiler\//] }  for await (const { path: filename } of walk(resolve('..'), walkOptions)) {    sourceFiles.push({ code: await Deno.readTextFile(filename), filename })  }  console.log(`[benchmark] ${sourceFiles.length} files`)
  const d1 = { d: 0, min: 0, max: 0 }  const d2 = { d: 0, min: 0, max: 0 }  const n = 5
  for (let i = 0; i < n; i++) {    // v8 warm-up    tsc('console.log("bla bla bla...")', { filename: '/app.ts', isDev: true })  }  for (const { code, filename } of sourceFiles) {    const t = performance.now()    for (let i = 0; i < n; i++) {      tsc(code, { filename, isDev: true })    }    const d = ((performance.now() - t) / n)    if (d1.min === 0 || d < d1.min) {      d1.min = d    }    if (d > d1.max) {      d1.max = d    }    d1.d += d  }
  for (let i = 0; i < n; i++) {    // v8 warm-up    transformSync('/app.ts', 'console.log("bla bla bla...")', { isDev: true })  }  for (const { code, filename } of sourceFiles) {    const t = performance.now()    for (let i = 0; i < n; i++) {      transformSync(filename, code, {        swcOptions: { target: 'es2020' },        isDev: true      })    }    const d = ((performance.now() - t) / n)    if (d2.min === 0 || d < d2.min) {      d2.min = d    }    if (d > d2.max) {      d2.max = d    }    d2.d += d  }
  console.log(`tsc done in ${(d1.d / 1000).toFixed(2)}s, min in ${d1.min.toFixed(2)}ms, max in ${d1.max.toFixed(2)}ms`)  console.log(`swc done in ${(d2.d / 1000).toFixed(2)}s, min in ${d2.min.toFixed(2)}ms, max in ${d2.max.toFixed(2)}ms`)  console.log(`swc is ${colorDiff(d1.d / d2.d)} ${d1.d > d2.d ? 'faster' : 'slower'} than tsc`)}
if (import.meta.main) {  const wasmData = getWasmData()  await init(wasmData)  await benchmark()}