Add ESM support to WASM package #1000
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- Add dual package support (ESM and CommonJS) - Update exports configuration for proper module resolution - Add rollup build process for generating .cjs and .mjs files - Add type definitions for both module formats - Update build script to generate both module formats This enables the package to be used in both ESM and CommonJS environments.
- Remove bundler-specific JS files (stylua_lib_bundler.js, stylua_lib_bundler_wbg.cjs) - Remove extra type definition files (.d.cts, .d.mts, bundler.d.ts) - Clean up package.json files array and remove browser field - Update sideEffects to include the actual generated files The simpler exports configuration handles all environments correctly without needing separate bundler files or multiple type definitions.
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Summary
This PR adds proper ES Module (ESM) support to the WASM package while maintaining full backwards compatibility with CommonJS. The package now works seamlessly in both module systems without requiring any changes from existing users.
Changes
.cjs(CommonJS) and.mjs(ESM) files from a single sourcerequire/import) that work across all environmentsTechnical Details
The implementation uses Rollup to transform a single ESM source file into both CommonJS and ESM outputs. This ensures consistency between the two formats and reduces maintenance burden. The WASM module is automatically initialized when imported, making the API identical for both module systems.