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https://github.com/oven-sh/bun
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8d8345a114
Add BMES v3 format that stores module metadata (import/export entries, variable declarations, code features) alongside bytecode. This enables skipping the parsing phase for ES modules by reconstructing JSModuleRecord directly from cached metadata. Key changes: - Add createModuleRecordFromCache() to reconstruct JSModuleRecord from cache - Serialize/deserialize module metadata in BMES v3 format - Add hasCachedModuleMetadata() virtual method to SourceProvider Performance improvement for large bundles: - ~200KB: break-even point - 2MB bundle: +13% faster startup - 10MB bundle: +11% faster startup - 20MB bundle: +15% faster startup (65ms saved) 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude <noreply@anthropic.com>
Bun Documentation
Official documentation for Bun: the fast, all-in-one JavaScript runtime.
Development
Install the Mintlify CLI to preview the documentation locally:
bun install -g mint
Run the development server:
mint dev
The site will be available at http://localhost:3000.
Contributing
Contributions are welcome! Please open an issue or submit a pull request.