Proc-macro: put Regexes into lazy_static!

tcr / parser-c

Haskell's language-c ported to Rust.

http://docs.rs/parser-c

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Closed birkenfeld closed 7 years ago

birkenfeld commented 7 years ago

This shaves off 4.5 secs from build for me, which is about half the time for rustc expansion pass.

birkenfeld commented 7 years ago

Unneeded with the new FnBox approach for P<T>.