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Avoid introducing new parentheses in annotated assignments (#8233)

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## Summary

We decided to avoid changing this in
https://github.com/astral-sh/ruff/issues/7315, but it's been reported
multiple times (e.g., in https://github.com/astral-sh/ruff/issues/8226,
also on Discord). I suggest we change it to improve compatibility. In
general, it also seems to lend itself to better code style.

Closes #8188 
Closes #8226

## Test Plan

Shows improvements for CPython, home-assistant, Poetry, and typeshed.

Before:

| project | similarity index | total files | changed files |

|----------------|------------------:|------------------:|------------------:|
| cpython | 0.75803 | 1799 | 1647 |
| django | 0.99983 | 2772 | 34 |
| home-assistant | 0.99953 | 10596 | 186 |
| poetry | 0.99891 | 317 | 17 |
| transformers | 0.99966 | 2657 | 330 |
| twine | 1.00000 | 33 | 0 |
| typeshed | 0.99978 | 3669 | 20 |
| warehouse | 0.99977 | 654 | 13 |
| zulip | 0.99970 | 1459 | 22 |

After:

| project | similarity index | total files | changed files |

|----------------|------------------:|------------------:|------------------:|
| cpython | 0.75804 | 1799 | 1647 |
| django | 0.99983 | 2772 | 34 |
| home-assistant | 0.99960 | 10596 | 156 |
| poetry | 0.99897 | 317 | 17 |
| transformers | 0.99966 | 2657 | 330 |
| twine | 1.00000 | 33 | 0 |
| typeshed | 0.99980 | 3669 | 18 |
| warehouse | 0.99977 | 654 | 13 |
| zulip | 0.99970 | 1459 | 22 |
This commit is contained in:
Charlie Marsh 2023-10-25 19:51:50 -07:00 • committed by GitHub
parent 133a745de1
commit 88c8b47326
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5 changed files with 57 additions and 53 deletions
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15
crates/ruff_python_formatter/resources/test/fixtures/ruff/statement/ann_assign.py vendored
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@ -1,6 +1,21 @@
# Regression test: Don't forget the parentheses in the value when breaking
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa: int = a + 1 * a
bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb: Bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb = (
Bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb()
)
bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb: (
Bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb
)= Bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb()
JSONSerializable: TypeAlias = (
"str | int | float | bool | None | list | tuple | JSONMapping"
)
JSONSerializable: str | int | float | bool | None | list | tuple | JSONMapping = {1, 2, 3, 4}
JSONSerializable: str | int | float | bool | None | list | tuple | JSONMapping = aaaaaaaaaaaaaaaa
# Regression test: Don't forget the parentheses in the annotation when breaking
class DefaultRunner: