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a2dcb3a6d9
rust/compiler/rustc_ast
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Nadrieril a2dcb3a6d9 Disallow an arm without a body (except for never patterns) 
Parsing now accepts a match arm without a body, so we must make sure to
only accept that if the pattern is a never pattern.
2023-12-03 12:25:46 +01:00
..
src Disallow an arm without a body (except for never patterns) 2023-12-03 12:25:46 +01:00
Cargo.toml Clean up rustc_*/Cargo.toml. 2023-10-30 08:46:02 +11:00
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: