Babel-preset-extendscript NPM

babel-preset-extendscript

What

Babel preset for transpiling ES2015 and modern JS conventions to ES3. Intended for use with Extendscript.

Install

With NPM:

$ npm install --save-dev babel-preset-extendscript

With Yarn:

$ yarn add --dev babel-preset-extendscript

Usage

Via `.babelrc` (Recommended)

.babelrc

{
  "presets": ["extendscript"]
}

Via CLI

$ babel script.js --presets extendscript

Via Node API

require('babel-core').transform('code', {
  presets: ['extendscript'],
});

Options

loose - Enable "loose" transformations for any plugins in this preset that allow them (Disabled by default).
modules - Enable transformation of ES6 module syntax to another module type (Enabled by default to "commonjs").
- Can be false to not transform modules, or one of ["amd", "umd", "systemjs", "commonjs"]

{
  presets: [
    ["extendscript", {"loose": true, "modules": "amd"}]
  ]
}
{
  presets: [
    ["extendscript", {"loose": true, "modules": false}]
  ]
}

Features

ES2015

babel-plugin-transform-es2015

Convenience

console.log
JSON.stringify
JSON.parse
setTimeout
setInterval
clearTimeout
clearInterval

Shims

Object.keys
Object.assign
Object.create
Array.isArray
Number.isFinite
Array.prototype.forEach
Array.prototype.find
Array.prototype.filter
Array.prototype.map
Array.prototype.reduce

Shams

Object.getPrototypeOf
Object.defineProperty
Object.defineProperties
Object.getOwnPropertyNames
Object.getOwnPropertyDescriptor
Object.seal
Object.freeze
Object.isSealed
Object.isFrozen
Object.isExtensible

Fixes

Wraps all conditional expressions in parentheses to prevent Expected: : error.

Known Issues

• CallExpression's that uses other transforms from this preset only insert them 1 level deep due to path.unshiftContainer adding a new CallExpression in Program:exit(). Need to figure out a way to do another Program:exit() after the first if new CallExpressions have been added so statename.matches can be += 1'd.