just fits_expanded

Author: ntBre

crates/ruff_python_formatter/src/expression/expr_lambda.rs

@@ -83,12 +83,7 @@ impl FormatNodeRule<ExprLambda> for FormatExprLambda {
         if is_parenthesize_lambda_bodies_enabled(f.context())
             && has_own_parentheses(body, f.context()).is_none()
         {
-            fits_expanded(&maybe_parenthesize_expression(
-                body,
-                item,
-                Parenthesize::IfBreaksParenthesizedNested,
-            ))
-            .fmt(f)
+            fits_expanded(&body.format()).fmt(f)
         } else {
             body.format().fmt(f)
         }

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

@@ -854,7 +854,7 @@ x = {
 
  long_unmergable_string_with_pragma = (
      "This is a really long string that can't be merged because it has a likely pragma at the end"  # type: ignore
-@@ -468,49 +358,26 @@
+@@ -468,50 +358,23 @@
      " of it."
  )
 
@@ -909,14 +909,12 @@ x = {
 -msg = lambda x: (
 -    f"this is a very very very very long lambda value {x} that doesn't fit on a"
 -    " single line"
-+msg = (
-+    lambda x: (
-+        f"this is a very very very very long lambda value {x} that doesn't fit on a single line"
-+    )
- )
+-)
++msg = lambda x: f"this is a very very very very long lambda value {x} that doesn't fit on a single line"
 
  dict_with_lambda_values = {
-@@ -522,65 +389,58 @@
+     "join": lambda j: (
+@@ -522,65 +385,58 @@
 
  # Complex string concatenations with a method call in the middle.
  code = (
@@ -1000,7 +998,7 @@ x = {
  )
 
  log.info(
-@@ -588,7 +448,7 @@
+@@ -588,7 +444,7 @@
  )
 
  log.info(
@@ -1009,7 +1007,7 @@ x = {
  )
 
  x = {
-@@ -597,10 +457,10 @@
+@@ -597,10 +453,10 @@
      )
  }
  x = {
@@ -1405,11 +1403,7 @@ string_with_escaped_nameescape = "..............................................
 
 string_with_escaped_nameescape = "........................................................................... \\N{LAO KO LA}"
 
-msg = (
-    lambda x: (
-        f"this is a very very very very long lambda value {x} that doesn't fit on a single line"
-    )
-)
+msg = lambda x: f"this is a very very very very long lambda value {x} that doesn't fit on a single line"
 
 dict_with_lambda_values = {
     "join": lambda j: (

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

@@ -661,186 +661,18 @@ class C:
 ```diff
 --- Stable
 +++ Preview
-@@ -27,30 +27,8 @@
- # Trailing
- 
- # Leading
--lambda x: lambda y: lambda z: (
--    x,
--    y,
--    y,
--    y,
--    y,
--    y,
--    y,
--    y,
--    y,
--    y,
--    y,
--    y,
--    y,
--    y,
--    y,
--    y,
--    y,
--    y,
--    y,
--    y,
--    y,
--    y,
--    z,
-+lambda x: lambda y: (
-+    lambda z: (x, y, y, y, y, y, y, y, y, y, y, y, y, y, y, y, y, y, y, y, y, y, z)
- )  # Trailing
- # Trailing
- 
-@@ -74,7 +52,9 @@
- 
- # lambda arguments don't have parentheses, so we never add a magic trailing comma ...
- def f(
--    aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa: bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb = lambda x: y,
-+    aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa: bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb = lambda x: (
-+        y
-+    ),
- ):
-     pass
- 
-@@ -218,71 +198,75 @@
- 
- # Leading
- lambda x: (
--    lambda y: lambda z: x
--    + y
--    + y
--    + y
--    + y
--    + y
--    + y
--    + y
--    + y
--    + y
--    + y
--    + y
--    + y
--    + y
--    + y
--    + y
--    + y
--    + y
--    + y
--    + y
--    + y
--    + y
--    + z  # Trailing
-+    lambda y: lambda z: (
-+            x
-+            + y
-+            + y
-+            + y
-+            + y
-+            + y
-+            + y
-+            + y
-+            + y
-+            + y
-+            + y
-+            + y
-+            + y
-+            + y
-+            + y
-+            + y
-+            + y
-+            + y
-+            + y
-+            + y
-+            + y
-+            + y
-+            + z
-+        )  # Trailing
- )  # Trailing
- 
- 
- # Leading
--lambda x: lambda y: lambda z: [
--    x,
--    y,
--    y,
--    y,
--    y,
--    y,
--    y,
--    y,
--    y,
--    y,
--    y,
--    y,
--    y,
--    y,
--    y,
--    y,
--    y,
--    y,
--    y,
--    y,
--    y,
--    y,
--    y,
--    y,
--    y,
--    y,
--    y,
--    y,
--    y,
--    y,
--    z,
--]  # Trailing
-+lambda x: lambda y: (
-+    lambda z: [
-+        x,
-+        y,
-+        y,
-+        y,
-+        y,
-+        y,
-+        y,
-+        y,
-+        y,
-+        y,
-+        y,
-+        y,
-+        y,
-+        y,
-+        y,
-+        y,
-+        y,
-+        y,
-+        y,
-+        y,
-+        y,
-+        y,
-+        y,
-+        y,
-+        y,
-+        y,
-+        y,
-+        y,
-+        y,
-+        y,
-+        z,
-+    ]
-+)  # Trailing
+@@ -280,9 +280,7 @@
+ ]  # Trailing
  # Trailing
  
 -lambda self, araa, kkkwargs=aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(
 -    *args, **kwargs
 -), e=1, f=2, g=2: d
-+lambda self, araa, kkkwargs=aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa(*args, **kwargs), e=1, f=2, g=2: (
-+    d
-+)
++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
-@@ -291,9 +275,9 @@
+@@ -291,9 +289,9 @@
          c,
          d,
          e,
@@ -853,7 +685,7 @@ class C:
      )
  
  
-@@ -302,15 +286,9 @@
+@@ -302,15 +300,7 @@
          c,
          d,
          e,
@@ -866,9 +698,7 @@ class C:
 -        e=1,
 -        f=2,
 -        g=2: d,
-+        f=lambda self, araa, kkkwargs, aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa, args, kwargs, e=1, f=2, g=2: (
-+            d
-+        ),
++        f=lambda self, araa, kkkwargs, aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa, args, kwargs, e=1, f=2, g=2: d,
          g=10,
      )