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cee88f7a3f
rust/compiler/rustc_ast
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Nicholas Nethercote cee88f7a3f Prepare for invisible delimiters. 
Current places where `Interpolated` is used are going to change to
instead use invisible delimiters. This prepares for that.
- It adds invisible delimiter cases to the `can_begin_*`/`may_be_*`
  methods and the `failed_to_match_macro` that are equivalent to the
  existing `Interpolated` cases.
- It adds panics/asserts in some places where invisible delimiters
  should never occur.
- In `Parser::parse_struct_fields` it excludes an ident + invisible
  delimiter from special consideration in an error message, because
  that's quite different to an ident + paren/brace/bracket.
2024-11-21 08:22:11 +11:00
..
src Prepare for invisible delimiters. 2024-11-21 08:22:11 +11:00
Cargo.toml Pin memchr to 2.5.0 in the library rather than rustc_ast 2024-09-24 18:09:43 +02:00
README.md docs(rustc_ast): update crate descriptions 2021-11-02 21:11:17 -05:00

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: