React compiler rewritten in Rust, PR opens for review

A pull request to port the React compiler to Rust has been submitted to the React repository [GitHub PR]. The change, authored by boudra [GitHub PR], replaces the existing JavaScript‑based compiler with a Rust implementation that mirrors the current React API.

── What shipped ──

The PR introduces a complete rewrite of the compiler core in Rust. The new code is structured to be drop‑in compatible with the existing API, meaning developers should see no functional differences once the change lands. The repository now contains both the original JavaScript files and the Rust version, allowing reviewers to compare implementations side by side.

── Why it matters ──

If merged, the Rust compiler will bring Rust’s memory‑safety guarantees and strong type system to the build process. Those characteristics can simplify maintenance and reduce the likelihood of runtime errors in the compiler itself. Additionally, the move signals a willingness to explore lower‑level languages for performance‑critical tooling within the React ecosystem.

This article is based on the publicly available pull request linked above.