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Improve compile time of parser combinators such as Combine #36918
Description
Activity
Please make the issue as specific and actionable as possible. It's best to report specific, measurable issues – they often get fixed!
For example the issue could specify a code snippet that uses combine, the version of the crate, the version of the compiler, and how long it takes to compile.
Previous combine issue: #21231 is fixed since Rust 1.11.
Current PR #36917 will have a positive impact.
Seeing as the underlying issue Marwes/combine#21 was closed, I will close this ticket. Thanks!
Currently, parser combinator libraries such as Combine require a very long time to type-check. This does not happen with similar Haskell libraries.
This bug can be considered resolved when such libraries do not take too much time to type check.