Port React Compiler to Rust
Meta's React team opens a PR to rewrite the React Compiler in Rust for significant build performance gains.
The React core team has submitted a pull request to port the React Compiler from JavaScript to Rust, following the broader trend of frontend tooling rewrites. React Compiler automatically inserts memoization into React components at build time; a Rust rewrite would dramatically speed up compilation in large codebases. This mirrors moves by SWC, Turbopack, Rolldown, and Biome, signaling that the entire React build pipeline may eventually run on Rust.
React Compiler is a static analysis and automatic optimization tool developed over many years by Meta's open-source team. Originally codenamed "React Forget," it officially debuted in the React 19 cycle. Its core function is to statically analyze the data flow between React components and hooks during the build phase, automatically inserting memory logic such as 'useMemo' and 'useCallback', allowing developers to achieve performance comparable to carefully tuned arrays without manually managing dependent arrays.
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