mirror of https://github.com/astral-sh/ruff.git synced 2025-08-25 04:44:31 +00:00

History

Brent Westbrook c8a06a9be8 [syntax-errors] Limit `except` range to `` (#16473 ) Summary -- This is a follow-up to #16446 to fix the diagnostic range to point to the `` like `pyright` does (https://github.com/astral-sh/ruff/pull/16446#discussion_r1976900643). Storing the range in the `ExceptClauseKind::Star` variant feels slightly awkward, but we don't store the star itself anywhere on the `ExceptHandler`. And we can't just take `ExceptHandler.start() + "except".text_len()` because this code appears to be valid: ```python try: ... except Error: ... ``` Test Plan -- Existing tests.		2025-03-04 16:50:09 +00:00
..
resources	[syntax-errors] Limit `except` range to `` (#16473 )	2025-03-04 16:50:09 +00:00
src	[syntax-errors] Limit `except` range to `` (#16473 )	2025-03-04 16:50:09 +00:00
tests	[syntax-errors] Limit `except` range to `` (#16473 )	2025-03-04 16:50:09 +00:00
Cargo.toml	Allow passing `ParseOptions` to inline tests (#16357 )	2025-02-27 10:23:15 -05:00
CONTRIBUTING.md	py-fuzzer: recommend using `uvx` rather than `uv run` to run the fuzzer (#14645 )	2024-11-27 22:19:52 +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.