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ruff/crates/ruff_python_parser
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Exact
Brent Westbrook da32a83c9f
[syntax-errors] return outside function (#17300) 
Summary
--

This PR reimplements [return-outside-function
(F706)](https://docs.astral.sh/ruff/rules/return-outside-function/) as a
semantic syntax error.

These changes are very similar to those in
https://github.com/astral-sh/ruff/pull/17298.

Test Plan
--

New linter tests, plus existing F706 tests.
2025-04-11 17:05:54 +00:00
..
resources Refactor semantic syntax error scope handling (#17314) 2025-04-09 14:23:29 -04:00
src [syntax-errors] return outside function (#17300) 2025-04-11 17:05:54 +00:00
tests [syntax-errors] yield, yield from, and await outside functions (#17298) 2025-04-11 10:16:23 -04:00
Cargo.toml Allow passing ParseOptions to inline tests (#16357) 2025-02-27 10:23:15 -05:00
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.