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rust/compiler/rustc_ast
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Nicholas Nethercote d6ebbbfcb2 Factor out AttrsTarget flattening code. 
This commit does the following.
- Pulls the code out of `AttrTokenStream::to_token_trees` into a new
  function `attrs_and_tokens_to_token_trees`.
- Simplifies `TokenStream::from_ast` by calling the new function. This
  is nicer than the old way, which created a temporary
  `AttrTokenStream` containing a single `AttrsTarget` (which required
  some cloning) just to call `to_token_trees` on it. (It is good to
  remove this use of `AttrsTarget` which isn't related to `cfg_attr`
  expansion.)
2024-07-10 17:03:17 +10:00
..
src Factor out AttrsTarget flattening code. 2024-07-10 17:03:17 +10:00
Cargo.toml Split rustc_type_ir to avoid rustc_ast from depending on it 2024-02-27 18:11:23 +00:00
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: