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Brent Westbrook 78806361fd
Start detecting version-related syntax errors in the parser (#16090) 
## Summary

This PR builds on the changes in #16220 to pass a target Python version
to the parser. It also adds the `Parser::unsupported_syntax_errors` field, which
collects version-related syntax errors while parsing. These syntax
errors are then turned into `Message`s in ruff (in preview mode).

This PR only detects one syntax error (`match` statement before Python
3.10), but it has been pretty quick to extend to several other simple
errors (see #16308 for example).

## Test Plan

The current tests are CLI tests in the linter crate, but these could be
supplemented with inline parser tests after #16357.

I also tested the display of these syntax errors in VS Code:


![image](https://github.com/user-attachments/assets/062b4441-740e-46c3-887c-a954049ef26e)

![image](https://github.com/user-attachments/assets/101f55b8-146c-4d59-b6b0-922f19bcd0fa)

---------

Co-authored-by: Alex Waygood <alex.waygood@gmail.com>
2025-02-25 23:03:48 -05:00
..
py-fuzzer Start detecting version-related syntax errors in the parser (#16090) 2025-02-25 23:03:48 -05:00
ruff Fix type subscript on older python versions (#15090) 2024-12-21 15:28:02 +01:00
ruff-ecosystem Ignore notebook with syntax error in ecosystem (#15604) 2025-01-20 04:53:22 +00:00