5961e5ba3d
Rollup of 9 pull requests Successful merges: - #138336 (Improve `-Z crate-attr` diagnostics) - #139636 (Encode dep node edge count as u32 instead of usize) - #139666 (cleanup `mir_borrowck`) - #139695 (compiletest: consistently use `camino::{Utf8Path,Utf8PathBuf}` throughout) - #139699 (Proactively update coroutine drop shim's phase to account for later passes applied during shim query) - #139718 (enforce unsafe attributes in pre-2024 editions by default) - #139722 (Move some things to rustc_type_ir) - #139760 (UI tests: migrate remaining compile time `error-pattern`s to line annotations when possible) - #139776 (Switch attrs to `diagnostic::on_unimplemented`) r? `@ghost` `@rustbot` modify labels: rollup |
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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: