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9 lines
558 B
Markdown
9 lines
558 B
Markdown
The `rustc_ast` crate contains those things concerned purely with syntax
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– 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).
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For more information about how these things work in rustc, see the
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rustc dev guide:
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- [Parsing](https://rustc-dev-guide.rust-lang.org/the-parser.html)
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- [Macro Expansion](https://rustc-dev-guide.rust-lang.org/macro-expansion.html)
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