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There already is one, and it’s used by Deno! https://swc.rs/ https://swc.rs/

• thdxr 5y ago
  This actually only builds and does not type-check similar to esbuild. The author is working on a proprietary type-checker in Rust though
• jamescostian 5y ago
  That doesn't support type checking, see https://github.com/swc-project/swc/issues/571 https://github.com/swc-project/swc/issues/571 You'd still need to run `tsc` to check types even if you used swc
  • flaque 5y ago
    oh, good point, apologies
• caspervonb 5y ago
  We use swc a lot but not for type-checking, that is still done by tsc loaded into a snapshot (precompiled v8 state). There is a type-checker in the works tho https://stc.dudy.dev/docs/status/ https://stc.dudy.dev/docs/status/