wepy-compiler-babel

1.5.3 verified Mon Apr 27 auth: no javascript maintenance

Babel compiler plugin for the WePY framework (v1.5.3). This package integrates Babel into WePY's build pipeline, allowing ES2015+ syntax transpilation for WePY projects. It is specifically designed for WePY 1.x and offers configuration via `wepy.config.js`. Unlike generic Babel setups, this plugin seamlessly works with WePY's compilation system. Release cadence is low; the package has been stable with infrequent updates. Key differentiator: tailored for WePY's compiler lifecycle hooks.

Common errors

error Error: Cannot find module 'babel-core' ↓

cause Missing Babel core dependency (peer dependency not installed)

fix

npm install babel-core --save-dev

error Error: Plugin/Preset files are not allowed to export objects, only functions. ↓

cause Using a Babel 7 preset (e.g., @babel/preset-env) with Babel 6 core

fix

Use Babel 6 presets (e.g., 'es2015', 'stage-1') or upgrade to wepy-compiler-babel with Babel 7 support.

Warnings

deprecated Babel presets 'es2015', 'stage-1' are deprecated in Babel 7+ ↓

fix Use @babel/preset-env and @babel/plugin-transform-runtime, and update wepy-compiler-babel if compatible.

gotcha This package only works with WePY 1.x; not compatible with WePY 2.x (wepy-cli v2) ↓

fix For WePY 2.x, use wepy-compiler-babel version that supports @wepy/cli or use built-in babel support.

breaking Requires Node.js 6+ due to Babel peer dependencies ↓

fix Upgrade Node.js to version 6 or later.

Install

npm install wepy-compiler-babel

yarn add wepy-compiler-babel

pnpm add wepy-compiler-babel

Imports

wepy-compiler-babel

wrong

import wepyCompilerBabel from 'wepy-compiler-babel'

correct

// In wepy.config.js: module.exports = { compilers: { babel: {} } }

Not imported in source code; configured as a compiler plugin in wepy.config.js

Quickstart

Configures the babel compiler in a WePY project with ES2015 and Stage-1 presets plus transform plugins.

// Install: npm install wepy-compiler-babel --save-dev
// wepy.config.js
module.exports = {
  compilers: {
    babel: {
      presets: ['es2015', 'stage-1'],
      plugins: [
        'transform-export-extensions',
        'syntax-export-extensions',
        'transform-runtime'
      ]
    }
  }
};