mirror of
https://github.com/rust-lang/rust.git
synced 2025-10-03 02:40:40 +00:00
a1c07214f0
- Rename it as `MixedUnit`, because it will soon be used in more than just C string literals. - Change the `Byte` variant to `HighByte` and use it only for `\x80`..`\xff` cases. This fixes the old inexactness where ASCII chars could be encoded with either `Byte` or `Char`. - Add useful comments. - Remove `is_ascii`, in favour of `u8::is_ascii`.
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: