parcel-bundler/src/assets/CoffeeScriptAsset.js

<p align="center"> <a href="https://parceljs.org/" target="_blank"> <img alt="Parcel" src="https://user-images.githubusercontent.com/19409/31321658-f6aed0f2-ac3d-11e7-8100-1587e676e0ec.png" width="749"> </a> </p>

const JSAsset = require('./JSAsset');
const localRequire = require('../utils/localRequire');

class CoffeeScriptAsset extends JSAsset {
  async parse(code) {
    // require coffeescript, installed locally in the app
    let coffee = await localRequire('coffeescript', this.name);

    // Transpile Module using CoffeeScript and parse result as ast format through babylon
    this.contents = coffee.compile(code, {});
    return await super.parse(this.contents);
  }
}

module.exports = CoffeeScriptAsset;