Rollup plugin with NAPI-RS StyleX compiler integration

Part of the StyleX SWC Plugin workspace

Rollup plugin for an unofficial napi-rs compiler that includes the StyleX SWC code transformation under the hood.

Installation

To install the package, run the following command:

npm install --save-dev @stylexswc/webpack-plugin

Please install @stylexswc/rs-compiler if you haven't done so already:

npm install --save-dev @stylexswc/rs-compiler

Usage

Modify Webpack config. For example:

const StylexPlugin = require('@stylexswc/webpack-plugin');
const path = require('path');

const config = (env, argv) => ({
  entry: {
    main: './js/index.js',
  },
  output: {
    path: path.resolve(__dirname, 'dist'),
    filename: '[name].js',
  },
  plugins: [
    new StylexPlugin({
      filename: 'styles.[contenthash].css',
      dev: argv.mode === 'development',
    }),
  ],
  cache: true,
});

module.exports = config;

Plugin Options

The plugin accepts the following configuration options:

rsOptions

• Type: StyleXOptions
• Optional
• Default: {}
• Description: StyleX compiler options that extend from @stylexswc/rs-compiler. For standard StyleX options, see the official StyleX documentation.

[!NOTE] New Features: The include and exclude options are exclusive to this NAPI-RS compiler implementation and are not available in the official StyleX Babel plugin.

rsOptions.include

• Type: (string | RegExp)[]
• Optional
• Description: RS-compiler Only An array of glob patterns or regular expressions to include specific files for StyleX transformation. When specified, only files matching at least one of these patterns will be transformed. Patterns are matched against paths relative to the current working directory. Supports regex lookahead/lookbehind for advanced filtering.

rsOptions.exclude

• Type: (string | RegExp)[]
• Optional
• Description: RS-compiler Only An array of glob patterns or regular expressions to exclude specific files from StyleX transformation. Files matching any of these patterns will not be transformed, even if they match an include pattern. Patterns are matched against paths relative to the current working directory. Supports regex lookahead/lookbehind for advanced filtering.

Path Filtering Examples

Include only specific directories:

stylexPlugin({
  rsOptions: {
    include: ['src/**/*.{ts,tsx,js,jsx}'],
  },
})

Exclude test and build files:

stylexPlugin({
  rsOptions: {
    exclude: ['**/*.test.*', '**/*.spec.*', '**/dist/**'],
  },
})

Using RegExp with lookahead/lookbehind - exclude node_modules except specific packages:

stylexPlugin({
  rsOptions: {
    // Exclude all node_modules except @stylexjs packages
    exclude: [/node_modules(?!\/@stylexjs)/],
  },
})

Transform only specific packages from node_modules:

stylexPlugin({
  rsOptions: {
    include: [
      'src/**/*.{ts,tsx,js,jsx}',
      'node_modules/@stylexjs/open-props/**/*.js',
    ],
    exclude: ['**/*.test.*'],
  },
})

fileName

• Type: string
• Optional
• Default: 'stylex.css'
• Description: Name of the output CSS file

useCSSLayers

• Type: boolean
• Optional
• Default: false
• Description: Enable CSS Layers support for better style isolation

lightningcssOptions

• Type: TransformOptions
• Optional
• Description: LightningCSS transform options (excluding code, filename, and visitor properties)

extractCSS

• Type: boolean
• Optional
• Default: true
• Description: Controls whether CSS should be extracted into a separate file

Documentation

• StyleX Documentation
• NAPI-RS compiler for StyleX

License

MIT — see LICENSE