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• [FILE] wasm2js

Просмотр файла: wasm2js

#!/usr/bin/env node

process.title = 'wasm2js'

const minimist = require('minimist')
const fs = require('fs')
const wasm2js = require('../')

const argv = minimist(process.argv.slice(2), {
  alias: {output: 'o', watch: 'w'},
  boolean: ['w']
})

const inp = argv._[0]

if (!inp) {
  console.error(`
Usage: wasm2js [input.wasm file] [options...]
  --output, -o [output.js file]
  --watch,  -w [recompile on input.wat change]
  `.trim())
  process.exit(1)
}

if (argv.watch && !argv.output) {
  console.error('--watch requires --output')
  process.exit(2)
}

if (argv.watch) fs.watch(inp, build)
build()

function build() {
  const wasmBuffer = fs.readFileSync(inp)
  const src = wasm2js(wasmBuffer)
  if (argv.output) fs.writeFileSync(argv.output, src)
  else process.stdout.write(src)
}

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