Comment by muglug

Comment by muglug 18 hours ago

1 reply

At Slack we have an internal Rust-based Hack typechecker that’s about 20% faster than the OCaml one (we use both)

Did you see better speedups over Pyre? Aka did I leave stuff on the table…

samwgoldman 6 hours ago

Hack is quite a bit more optimized than Pyre was, but Pyrefly is at least 10x faster than Pyre on the IG codebase.

I didn’t know about the Rust-based Hack checker— that’s really cool!