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docs(rustc_ast): update crate descriptions

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Caleb Cartwright 2021-11-02 21:10:31 -05:00
parent 18bc4bee97
commit 9e31fab58c
2 changed files with 2 additions and 3 deletions
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compiler/rustc_ast/README.md
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The `rustc_ast` crate contains those things concerned purely with syntax The `rustc_ast` crate contains those things concerned purely with syntax
– that is, the AST ("abstract syntax tree"), parser, pretty-printer, – 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).
lexer, macro expander, and utilities for traversing ASTs.
For more information about how these things work in rustc, see the For more information about how these things work in rustc, see the
rustc dev guide: rustc dev guide:

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compiler/rustc_ast/src/lib.rs
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//! The Rust parser and macro expander. //! The Rust Abstract Syntax Tree (AST).
//! //!
//! # Note //! # Note
//! //!