mirror of
https://github.com/rust-lang/rust.git
synced 2025-10-03 10:47:16 +00:00
a06160d9a8
Improve some `Visitor` comments. For AST/HIR/THIR visitors, explain the use of deconstruction. r? ``@BoxyUwU``
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: