Nika Layzell 4d45af9e73 Try to reduce codegen complexity of TokenStream's FromIterator and Extend impls ... This is an experimental patch to try to reduce the codegen complexity of TokenStream's FromIterator and Extend implementations for downstream crates, by moving the core logic into a helper type. This might help improve build performance of crates which depend on proc_macro as iterators are used less, and the compiler may take less time to do things like attempt specializations or other iterator optimizations. The change intentionally sacrifices some optimization opportunities, such as using the specializations for collecting iterators derived from Vec::into_iter() into Vec. This is one of the simpler potential approaches to reducing the amount of code generated in crates depending on proc_macro, so it seems worth trying before other more-involved changes.		2022-06-17 00:42:26 -04:00
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src	Try to reduce codegen complexity of TokenStream's FromIterator and Extend impls	2022-06-17 00:42:26 -04:00
Cargo.toml	proc_macro: Add a workaround for rustdoc	2022-04-19 22:49:27 +03:00