`vue_component_options_kind` walked every ancestor up to `Program` for each
`ObjectExpression`. All three recognized forms require the object expression's
span to match a direct child slot of the matched node — `export default {...}`,
the last argument of a definition call, the first argument of `new Vue(...)` —
so no ancestor above the parent can ever match. Check the parent only.
`require_slots_as_functions` calls this from its own `ancestors()` loop, which
made that path quadratic in nesting depth.
Measured single-threaded over `.vue` files, interleaved paired samples, byte
identical diagnostics before and after:
- n8n (1,254 files, 287K lines): -1.50ms, 95% CI [-2.61, -0.39]
- GitLab (4,566 files, 629K lines): -2.63ms, 95% CI [-3.25, -2.01]
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
⚓ Oxc
/oʊ ɛks siː/
The Oxidation Compiler is a collection of high-performance tools for JavaScript and TypeScript written in Rust.
Oxc is part of VoidZero's vision for a unified, high-performance toolchain for JavaScript. It powers Rolldown (Vite's bundler) and enables the next generation of ultra-fast development tools that work seamlessly together.
For more information, check out our website at oxc.rs.
* Oxidation is the chemical process that creates rust
🙋 Who's using Oxc?
Rolldown and Nuxt use Oxc for parsing. Rolldown also uses Oxc for transformation and minification. Nova, swc-node, and knip use oxc_resolver for module resolution. Preact, Shopify, ByteDance, and Shopee use oxlint for linting.
🔧 Lint or Format a Codebase
🧰 Build Tooling on Top of Oxc
- Parse JavaScript and TypeScript: Parser
- Transform TypeScript, JSX, and modern JavaScript: Transformer
- Minify JavaScript for production builds: Minifier
- Resolve modules for JavaScript and TypeScript: Resolver
✍️ Contribute
Check out some of the good first issues or ask us on Discord.
See CONTRIBUTING.md for guidance, or read the complete contributing guide on our website →
If you are unable to contribute by code, you can still participate by:
- Add a GitHub Star to the project
- Join us on Discord
- Follow me on X and post about this project
📚 Other Resources
Sponsored By
📖 License
Oxc is free and open-source software licensed under the MIT License.
Thank you to namespace.so for powering our CI/CD pipelines with fast, free macOS and Linux runners.
Oxc ports or copies code from other open source projects, their licenses are listed in Third-party library licenses.