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Rollup of 12 pull requests Successful merges: - #135767 (Future incompatibility warning `unsupported_fn_ptr_calling_conventions`: Also warn in dependencies) - #137852 (Remove layouting dead code for non-array SIMD types.) - #137863 (Fix pretty printing of unsafe binders) - #137882 (do not build additional stage on compiler paths) - #137894 (Revert "store ScalarPair via memset when one side is undef and the other side can be memset") - #137902 (Make `ast::TokenKind` more like `lexer::TokenKind`) - #137921 (Subtree update of `rust-analyzer`) - #137922 (A few cleanups after the removal of `cfg(not(parallel))`) - #137939 (fix order on shl impl) - #137946 (Fix docker run-local docs) - #137955 (Always allow rustdoc-json tests to contain long lines) - #137958 (triagebot.toml: Don't label `test/rustdoc-json` as A-rustdoc-search) r? `@ghost` `@rustbot` modify labels: rollup |
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| 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: