4acc5e6480
Raw strings don't have escape sequences, so for them "unescaping" just means checking for invalid chars like bare CR. Which means there is no need to rebuild them one char or byte at a time while escaping, because the unescaped version will be the same. This commit removes that rebuilding. Also, the commit changes things so that "unescaping" is unconditional for raw strings and raw byte strings. That's simpler and they're rare enough that the perf effect is negligible. |
||
|---|---|---|
| .. | ||
| src | ||
| Cargo.toml | ||
| README.md | ||
The rustc_ast crate contains those things concerned purely with syntax
– that is, the AST ("abstract syntax tree"), along with some definitions for tokens and token streams, data structures/traits for mutating ASTs, and shared definitions for other AST-related parts of the compiler (like the lexer and macro-expansion).
For more information about how these things work in rustc, see the rustc dev guide: