6c62d77830
Currently, keywords are stored in hashsets that are recreated for every Parser instance, which is quite expensive since macro expansion creates lots of them. Additionally, the parser functions that look for a keyword currently accept a string and have a runtime check to validate that they actually received a keyword. By creating an enum for the keywords and inserting them into the ident interner, we can avoid the creation of the hashsets and get static checks for the keywords. For libstd, this cuts the parse+expansion part from ~2.6s to ~1.6s. |
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| .. | ||
| deriving | ||
| pipes | ||
| tt | ||
| asm.rs | ||
| auto_encode.rs | ||
| base.rs | ||
| build.rs | ||
| bytes.rs | ||
| concat_idents.rs | ||
| env.rs | ||
| expand.rs | ||
| fmt.rs | ||
| log_syntax.rs | ||
| quote.rs | ||
| source_util.rs | ||
| trace_macros.rs | ||