AST-grep Rewrites Tree-sitter in Rust, Boosting Speed by 30%

AST-grep, a pattern-matching tool for abstract syntax trees, has rewritten the widely used Tree-sitter parsing library entirely in Rust. The project achieved a 30% performance improvement over the original implementation. This matters because Tree-sitter powers syntax highlighting and code analysis in many editors and developer tools, meaning the speed gain could benefit millions of users.

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