rust - https://github.com/rust-lang/rust

Age	Commit message (Expand)	Author	Lines
2020-06-08	Show `SyntaxContext` in formatted `Span` debug output	Aaron Hill	-30/+30
2020-06-04	Add `-Z span-debug` to allow for easier debugging of proc macros	Aaron Hill	-0/+207
2020-05-15	Add test of proc_macro::TokenStream's Debug	David Tolnay	-0/+221