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141719f68a
This involves replacing `nt_pretty_printing_compatibility_hack` with `stream_pretty_printing_compatibility_hack`. The handling of statements in `transcribe` is slightly different to other nonterminal kinds, due to the lack of `from_ast` implementation for empty statements. Notable test changes: - `tests/ui/proc-macro/expand-to-derive.rs`: the diff looks large but the only difference is the insertion of a single invisible-delimited group around a metavar. |
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| Cargo.toml | ||
| 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: