Avoid parenthesizing unsplittable because of comments (#8431)

crates/ruff_python_formatter/tests/snapshots/black_compatibility@simple_cases__remove_await_parens.py.snap

@@ -93,7 +93,7 @@ async def main():
 ```diff
 --- Black
 +++ Ruff
-@@ -21,11 +21,15 @@
+@@ -21,7 +21,9 @@
  
  # Check comments
  async def main():
@@ -103,13 +103,6 @@ async def main():
 +    )
  
  
- async def main():
--    await asyncio.sleep(1)  # Hello
-+    await (
-+        asyncio.sleep(1)  # Hello
-+    )
- 
- 
  async def main():
 ```
 
@@ -145,9 +138,7 @@ async def main():
 
 
 async def main():
-    await (
-        asyncio.sleep(1)  # Hello
-    )
+    await asyncio.sleep(1)  # Hello
 
 
 async def main():

crates/ruff_python_formatter/tests/snapshots/format@expression__optional_parentheses_comments.py.snap

@@ -0,0 +1,424 @@
+---
+source: crates/ruff_python_formatter/tests/fixtures.rs
+input_file: crates/ruff_python_formatter/resources/test/fixtures/ruff/expression/optional_parentheses_comments.py
+---
+## Input
+```py
+comment_string = "Long lines with inline comments should have their comments appended to the reformatted string's enclosing right parentheses."  # This comment gets thrown to the top.
+
+# 88 characters unparenthesized
+____aaa = aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaabbbbbbbbbbbbbbbbbbbbbbbbbbbvvvvv  # c
+
+# 88 characters
+____aaa = aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaabbbbbbbbbbbbbbbbbbbbbbbbbbbvvvvvvvvvv  # c
+
+# 89 characters parenthesized (collapse)
+____aaa = aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaabbbbbbbbbbbbbbbbbbbbbbbbbbbvvvvvvvvvvvv  # c
+
+## Parenthesized
+
+# 88 characters unparenthesized
+____aaa = (
+    aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaabbbbbbbbbbbbbbbbbbbbbbbbbbbvvvvv  # c
+)
+
+# 88 characters
+____aaa = (
+    aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaabbbbbbbbbbbbbbbbbbbbbbbbbbbvvvvvvvvvv  # c
+)
+
+# 89 characters parenthesized (collapse)
+____aaa = (
+    aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaabbbbbbbbbbbbbbbbbbbbbbbbbbbvvvvvvvvvvvv  # c
+)
+
+## Expression and statement comments
+
+# 88 characters unparenthesized
+____aaa = (
+    aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaabbbbbbbbbbbbbbbbbbbbbbbbbbb  # c
+)  # d
+
+# 88 characters
+____aaa = (
+    aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaabbbbbbbbbbbbbbbbbbbbbbbbbbbvvvvvv  # c
+)  # d
+
+# 89 characters parenthesized (collapse)
+____aaa = (
+    aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaabbbbbbbbbbbbbbbbbbbbbbbbbbbvvvvvvv  # c
+)  # d
+
+## Strings
+
+# 88 characters unparenthesized
+____aaa = "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaabbbbbbbbbbbbbbbbbbbbbbbbbbbvvvv"  # c
+
+# 88 characters
+____aaa = "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaabbbbbbbbbbbbbbbbbbbbbbbbbbbvvvvvvvvvv"  # c
+
+# 89 characters parenthesized (collapse)
+____aaa = "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaabbbbbbbbbbbbbbbbbbbbbbbbbbbvvvvvvvvvv"  # c
+
+# Always parenthesize if implicit concatenated
+____aaa = (
+    "aaaaaaaaaaaaaaaaaaaaa" "aaaaaaaaaaaaaaaaaabbbbbbbbbbbbbbbbbbbbbbbbbbbvvvvvvvvvvvvvvv"
+)  # c
+
+## Numbers
+
+# 88 characters unparenthesized
+____aaa = 1111111111111111111111111111111111111111111111111111111111111111111111111  # c
+
+# 88 characters
+____aaa = 1111111111111111111111111111111111111111111111111111111111111111111111111111111  # c
+
+# 89 characters parenthesized (collapse)
+____aaa = 11111111111111111111111111111111111111111111111111111111111111111111111111111111  # c
+
+## Breaking left
+
+# Should break `[a]` first
+____[a] = aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaabbbbbbbbbbbbbbbbbbbbbbbbbbbvvvvvvvvvvv  # c
+
+____[
+    a
+] = (
+    aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaabbbbbbbbbbbbbbbbbbbbbbbbbbbvvvvvvvvvvv  # cc
+)
+
+(
+    # some weird comments
+    ____[aaaaaaaaa]
+    # some weird comments 2
+) = aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaabbbbbbbbbbbbbbbbbbbbbbbbbbbvvvvvvvvvvv  # c
+
+# Preserve trailing assignment comments when the expression has own line comments
+____aaa = (
+    # leading
+    aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaabbbbbbbbbbbbbbbbbbbbbbbbbbbvvvvvvvvvvv
+    # trailing
+)  # cc
+
+def setUpTestData(cls):
+    cls.happening = (
+        Happening.objects.create()
+    )  # make sure the defaults are working (#20158)
+
+def setUpTestData(cls):
+    cls.happening = (
+        Happening.objects.create  # make sure the defaults are working (#20158)
+    )
+
+if True:
+    if True:
+        if True:
+            # Black layout
+            model.config.use_cache = (
+                False  # FSTM still requires this hack -> FSTM should probably be refactored s
+            )
+
+## Annotated Assign
+
+# 88 characters unparenthesized
+____a: a = aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaabbbbbbbbbbbbbbbbbbbbbbbbbbbvvvv  # c
+
+# 88 characters
+____a: a = aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaabbbbbbbbbbbbbbbbbbbbbbbbbbbvvvvvvvvvvv  # c
+
+# 89 characters parenthesized (collapse)
+____a: a = aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaabbbbbbbbbbbbbbbbbbbbbbbbbbbvvvvvvvvvvvv  # c
+
+# 88 characters unparenthesized
+____a : a = (
+    aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaabbbbbbbbbbbbbbbbbbbbbbbbbbbvvvv  # c
+)
+
+# 88 characters
+____a: a = (
+    aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaabbbbbbbbbbbbbbbbbbbbbbbbbbbvvvvvvvvvvv  # c
+)
+
+# 89 characters parenthesized (collapse)
+____a: a = (
+    aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaabbbbbbbbbbbbbbbbbbbbbbbbbbbvvvvvvvvvvvv  # c
+)
+
+_a: a[b] = (
+    aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaabbbbbbbbbbbbbbbbbbbbbbbbbbbvvvvvvvvvvvv  # c
+)
+
+## Augmented Assign
+
+# 88 characters unparenthesized
+____aa += aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaabbbbbbbbbbbbbbbbbbbbbbbbbbbvvvvv  # c
+
+# 88 characters
+____aa += aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaabbbbbbbbbbbbbbbbbbbbbbbbbbbvvvvvvvvvv  # c
+
+# 89 characters parenthesized (collapse)
+____aa += aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaabbbbbbbbbbbbbbbbbbbbbbbbbbbvvvvvvvvvvvv  # c
+
+# 88 characters unparenthesized
+____aa += (
+    aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaabbbbbbbbbbbbbbbbbbbbbbbbbbbvvvvv  # c
+)
+
+# 88 characters
+____aa += (
+    aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaabbbbbbbbbbbbbbbbbbbbbbbbbbbvvvvvvvvvv  # c
+)
+
+# 89 characters parenthesized (collapse)
+____aa += (
+    aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaabbbbbbbbbbbbbbbbbbbbbbbbbbbvvvvvvvvvvvv  # c
+)
+
+## Return
+
+def test():
+    # 88 characters unparenthesized
+    return aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaabbbbbbbbbbbbbbbbbbbbbbbbbbbvvvv  # c
+
+def test2():
+    # 88 characters
+    return aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaabbbbbbbbbbbbbbbbbbbbbbbbbbbvvvvvvv  # c
+
+def test3():
+    # 89 characters parenthesized (collapse)
+    return aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaabbbbbbbbbbbbbbbbbbbbbbbbbbbvvvvvvvv  # c
+
+## Return Parenthesized
+
+def test4():
+    # 88 characters unparenthesized
+    return (
+        aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaabbbbbbbbbbbbbbbbbbbbbbbbbbbvvvv  # c
+    )
+
+def test5():
+    # 88 characters
+    return (
+        aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaabbbbbbbbbbbbbbbbbbbbbbbbbbbvvvvvvv  # c
+    )
+
+def test6():
+    # 89 characters parenthesized (collapse)
+    return (
+        aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaabbbbbbbbbbbbbbbbbbbbbbbbbbbvvvvvvvv  # c
+    )
+
+
+
+```
+
+## Output
+```py
+comment_string = "Long lines with inline comments should have their comments appended to the reformatted string's enclosing right parentheses."  # This comment gets thrown to the top.
+
+# 88 characters unparenthesized
+____aaa = aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaabbbbbbbbbbbbbbbbbbbbbbbbbbbvvvvv  # c
+
+# 88 characters
+____aaa = (
+    aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaabbbbbbbbbbbbbbbbbbbbbbbbbbbvvvvvvvvvv  # c
+)
+
+# 89 characters parenthesized (collapse)
+____aaa = aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaabbbbbbbbbbbbbbbbbbbbbbbbbbbvvvvvvvvvvvv  # c
+
+## Parenthesized
+
+# 88 characters unparenthesized
+____aaa = aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaabbbbbbbbbbbbbbbbbbbbbbbbbbbvvvvv  # c
+
+# 88 characters
+____aaa = (
+    aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaabbbbbbbbbbbbbbbbbbbbbbbbbbbvvvvvvvvvv  # c
+)
+
+# 89 characters parenthesized (collapse)
+____aaa = aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaabbbbbbbbbbbbbbbbbbbbbbbbbbbvvvvvvvvvvvv  # c
+
+## Expression and statement comments
+
+# 88 characters unparenthesized
+____aaa = aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaabbbbbbbbbbbbbbbbbbbbbbbbbbb  # c  # d
+
+# 88 characters
+____aaa = (
+    aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaabbbbbbbbbbbbbbbbbbbbbbbbbbbvvvvvv  # c  # d
+)
+
+# 89 characters parenthesized (collapse)
+____aaa = aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaabbbbbbbbbbbbbbbbbbbbbbbbbbbvvvvvvv  # c  # d
+
+## Strings
+
+# 88 characters unparenthesized
+____aaa = "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaabbbbbbbbbbbbbbbbbbbbbbbbbbbvvvv"  # c
+
+# 88 characters
+____aaa = (
+    "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaabbbbbbbbbbbbbbbbbbbbbbbbbbbvvvvvvvvvv"  # c
+)
+
+# 89 characters parenthesized (collapse)
+____aaa = "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaabbbbbbbbbbbbbbbbbbbbbbbbbbbvvvvvvvvvv"  # c
+
+# Always parenthesize if implicit concatenated
+____aaa = (
+    "aaaaaaaaaaaaaaaaaaaaa"
+    "aaaaaaaaaaaaaaaaaabbbbbbbbbbbbbbbbbbbbbbbbbbbvvvvvvvvvvvvvvv"
+)  # c
+
+## Numbers
+
+# 88 characters unparenthesized
+____aaa = 1111111111111111111111111111111111111111111111111111111111111111111111111  # c
+
+# 88 characters
+____aaa = (
+    1111111111111111111111111111111111111111111111111111111111111111111111111111111  # c
+)
+
+# 89 characters parenthesized (collapse)
+____aaa = 11111111111111111111111111111111111111111111111111111111111111111111111111111111  # c
+
+## Breaking left
+
+# Should break `[a]` first
+____[
+    a
+] = aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaabbbbbbbbbbbbbbbbbbbbbbbbbbbvvvvvvvvvvv  # c
+
+____[
+    a
+] = aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaabbbbbbbbbbbbbbbbbbbbbbbbbbbvvvvvvvvvvv  # cc
+
+(
+    # some weird comments
+    ____[aaaaaaaaa]
+    # some weird comments 2
+) = aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaabbbbbbbbbbbbbbbbbbbbbbbbbbbvvvvvvvvvvv  # c
+
+# Preserve trailing assignment comments when the expression has own line comments
+____aaa = (
+    # leading
+    aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaabbbbbbbbbbbbbbbbbbbbbbbbbbbvvvvvvvvvvv
+    # trailing
+)  # cc
+
+
+def setUpTestData(cls):
+    cls.happening = (
+        Happening.objects.create()
+    )  # make sure the defaults are working (#20158)
+
+
+def setUpTestData(cls):
+    cls.happening = (
+        Happening.objects.create  # make sure the defaults are working (#20158)
+    )
+
+
+if True:
+    if True:
+        if True:
+            # Black layout
+            model.config.use_cache = False  # FSTM still requires this hack -> FSTM should probably be refactored s
+
+## Annotated Assign
+
+# 88 characters unparenthesized
+____a: a = aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaabbbbbbbbbbbbbbbbbbbbbbbbbbbvvvv  # c
+
+# 88 characters
+____a: a = (
+    aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaabbbbbbbbbbbbbbbbbbbbbbbbbbbvvvvvvvvvvv  # c
+)
+
+# 89 characters parenthesized (collapse)
+____a: a = aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaabbbbbbbbbbbbbbbbbbbbbbbbbbbvvvvvvvvvvvv  # c
+
+# 88 characters unparenthesized
+____a: a = aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaabbbbbbbbbbbbbbbbbbbbbbbbbbbvvvv  # c
+
+# 88 characters
+____a: a = (
+    aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaabbbbbbbbbbbbbbbbbbbbbbbbbbbvvvvvvvvvvv  # c
+)
+
+# 89 characters parenthesized (collapse)
+____a: a = aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaabbbbbbbbbbbbbbbbbbbbbbbbbbbvvvvvvvvvvvv  # c
+
+_a: a[
+    b
+] = aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaabbbbbbbbbbbbbbbbbbbbbbbbbbbvvvvvvvvvvvv  # c
+
+## Augmented Assign
+
+# 88 characters unparenthesized
+____aa += aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaabbbbbbbbbbbbbbbbbbbbbbbbbbbvvvvv  # c
+
+# 88 characters
+____aa += (
+    aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaabbbbbbbbbbbbbbbbbbbbbbbbbbbvvvvvvvvvv  # c
+)
+
+# 89 characters parenthesized (collapse)
+____aa += aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaabbbbbbbbbbbbbbbbbbbbbbbbbbbvvvvvvvvvvvv  # c
+
+# 88 characters unparenthesized
+____aa += aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaabbbbbbbbbbbbbbbbbbbbbbbbbbbvvvvv  # c
+
+# 88 characters
+____aa += (
+    aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaabbbbbbbbbbbbbbbbbbbbbbbbbbbvvvvvvvvvv  # c
+)
+
+# 89 characters parenthesized (collapse)
+____aa += aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaabbbbbbbbbbbbbbbbbbbbbbbbbbbvvvvvvvvvvvv  # c
+
+## Return
+
+
+def test():
+    # 88 characters unparenthesized
+    return aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaabbbbbbbbbbbbbbbbbbbbbbbbbbbvvvv  # c
+
+
+def test2():
+    # 88 characters
+    return (
+        aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaabbbbbbbbbbbbbbbbbbbbbbbbbbbvvvvvvv  # c
+    )
+
+
+def test3():
+    # 89 characters parenthesized (collapse)
+    return aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaabbbbbbbbbbbbbbbbbbbbbbbbbbbvvvvvvvv  # c
+
+
+## Return Parenthesized
+
+
+def test4():
+    # 88 characters unparenthesized
+    return aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaabbbbbbbbbbbbbbbbbbbbbbbbbbbvvvv  # c
+
+
+def test5():
+    # 88 characters
+    return (
+        aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaabbbbbbbbbbbbbbbbbbbbbbbbbbbvvvvvvv  # c
+    )
+
+
+def test6():
+    # 89 characters parenthesized (collapse)
+    return aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaabbbbbbbbbbbbbbbbbbbbbbbbbbbvvvvvvvv  # c
+```
+
+
+

crates/ruff_python_formatter/tests/snapshots/format@expression__unsplittable.py.snap

@@ -164,9 +164,7 @@ for converter in connection.ops.get_db_converters(
     pass
 
 
-aaa = (
-    bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb  # awkward comment
-)
+aaa = bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb  # awkward comment
 
 
 def test():
@@ -202,13 +200,9 @@ if True:
     if True:
         if True:
             # Black layout
-            model.config.use_cache = (
-                False  # FSTM still requires this hack -> FSTM should probably be refactored s
-            )
+            model.config.use_cache = False  # FSTM still requires this hack -> FSTM should probably be refactored s
             # Ruff layout
-            model.config.use_cache = (
-                False
-            )  # FSTM still requires this hack -> FSTM should probably be refactored s
+            model.config.use_cache = False  # FSTM still requires this hack -> FSTM should probably be refactored s
 
 
 # Regression test for https://github.com/astral-sh/ruff/issues/7463

crates/ruff_python_formatter/tests/snapshots/format@parentheses__expression_parentheses_comments.py.snap

@@ -146,9 +146,7 @@ list_with_parenthesized_elements5 = [
     (2),  # trailing outer
 ]
 
-nested_parentheses1 = (
-    1  # i  # j
-)  # k
+nested_parentheses1 = 1  # i  # j  # k
 nested_parentheses2 = [
     (
         1  # i