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Fix multiline lambda expression statement formating (#8466)

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## Summary

This PR fixes a bug in our formatter where a multiline lambda expression
statement was formatted over multiple lines without adding parentheses.

The PR "fixes" the problem by not splitting the lambda parameters if it
is not parenthesized

## Test Plan

Added test
This commit is contained in:
Micha Reiser 2023-11-05 23:35:23 +09:00 • committed by GitHub
parent 75c9be099f
commit e57bccd500
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GPG key ID: 4AEE18F83AFDEB23
3 changed files with 95 additions and 3 deletions
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59
crates/ruff_python_formatter/tests/snapshots/format@expression__lambda.py.snap
View file

@ -209,6 +209,31 @@ lambda: ( # comment
y:
z
)
lambda self, araa, kkkwargs=aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(*args, **kwargs), e=1, f=2, g=2: d
# Regression tests for https://github.com/astral-sh/ruff/issues/8179
def a():
return b(
c,
d,
e,
f=lambda self, *args, **kwargs: aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(
*args, **kwargs
),
)
def a():
return b(
c,
d,
e,
f=lambda self, araa, kkkwargs,aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa,
args,kwargs,
e=1, f=2, g=2: d,
g = 10
)
```
## Output
@ -413,6 +438,40 @@ lambda: ( # comment
# comment
y: z
)
lambda self, araa, kkkwargs=aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(
*args, **kwargs
), e=1, f=2, g=2: d
# Regression tests for https://github.com/astral-sh/ruff/issues/8179
def a():
return b(
c,
d,
e,
f=lambda self,
*args,
**kwargs: aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(*args, **kwargs),
)
def a():
return b(
c,
d,
e,
f=lambda self,
araa,
kkkwargs,
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa,
args,
kwargs,
e=1,
f=2,
g=2: d,
g=10,
)
```