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ruff/crates/ruff_python_parser
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Ibraheem Ahmed 7abc41727b
[ty] Shrink size of AstNodeRef (#20028) 
## Summary

Removes the `module_ptr` field from `AstNodeRef` in release mode, and
change `NodeIndex` to a `NonZeroU32` to reduce the size of
`Option<AstNodeRef<_>>` fields.

I believe CI runs in debug mode, so this won't show up in the memory
report, but this reduces memory by ~2% in release mode.
2025-08-22 17:03:22 -04:00
..
resources Disallow implicit concatenation of t-strings and other string types (#19485) 2025-07-27 12:41:03 +00:00
src [ty] Shrink size of AstNodeRef (#20028) 2025-08-22 17:03:22 -04:00
tests [ty] Shrink size of AstNodeRef (#20028) 2025-08-22 17:03:22 -04:00
Cargo.toml [ty] Add environment variable to dump Salsa memory usage stats (#18928) 2025-06-26 21:27:51 +00:00
CONTRIBUTING.md Update pre-commit dependencies (#17073) 2025-03-31 07:42:15 +00:00
README.md Add basic docs for the parser crate (#11199) 2024-04-29 17:08:07 +00:00

README.md

Ruff Python Parser

Ruff's Python parser is a hand-written recursive descent parser which can parse Python source code into an Abstract Syntax Tree (AST). It also utilizes the Pratt parsing technique to parse expressions with different precedence.

Try out the parser in the playground.

Python version support

The parser supports the latest Python syntax, which is currently Python 3.12. It does not throw syntax errors if it encounters a syntax feature that is not supported by the target-version. This will be fixed in a future release (see https://github.com/astral-sh/ruff/issues/6591).

Contributing

Refer to the contributing guidelines to get started and GitHub issues with the parser label for issues that need help.