ruff/crates/ruff_linter/resources
Igor Drokin 673167a565
[`flake8-bugbear`] Include certain guaranteed-mutable expressions: tuples, generators, and assignment expressions (`B006`) (#20024)
## Summary
Resolves #20004

The implementation now supports guaranteed-mutable expressions in the
following cases:
- Tuple literals with mutable elements (supporting deep nesting)
- Generator expressions
- Named expressions (walrus operator) containing mutable components

Preserves original formatting for assignment value:

```python
# Test case
def f5(x=([1, ])):
    print(x)
```
```python
# Fix before
def f5(x=(None)):
    if x is None:
        x = [1]
    print(x)
```
```python
# Fix after 
def f5(x=None):
    if x is None:
        x = ([1, ])
    print(x)
```
The expansion of detected expressions and the new fixes gated behind
previews.

## Test Plan
- Added B006_9.py with a bunch of test cases
- Generated snapshots

---------

Co-authored-by: Igor Drokin <drokinii1017@gmail.com>
Co-authored-by: dylwil3 <dylwil3@gmail.com>
2025-10-03 09:29:36 -05:00
..
test [`flake8-bugbear`] Include certain guaranteed-mutable expressions: tuples, generators, and assignment expressions (`B006`) (#20024) 2025-10-03 09:29:36 -05:00
__init__.py [`pylint`] (Re-)Implement `import-private-name` (`C2701`) (#9553) 2024-01-16 14:03:11 -05:00