Detect `'@' dotted_name '(' ')' NEWLINE` as a simple decorator (#2182)

[etc/vim.git] / src / black / __init__.py

diff --git a/src/black/__init__.py b/src/black/__init__.py
index 49d088b531d0bc48f3340f576db6659ad0da8a03..cf257876c035c27d94c1348212a55fc59a7e7f64 100644 (file)
--- a/src/black/__init__.py
+++ b/src/black/__init__.py
@@ -5761,6 +5761,13 @@ def is_simple_decorator_trailer(node: LN, last: bool = False) -> bool:
             and node.children[0].type == token.DOT
             and node.children[1].type == token.NAME
         )
+        # last trailer can be an argument-less parentheses pair
+        or (
+            last
+            and len(node.children) == 2
+            and node.children[0].type == token.LPAR
+            and node.children[1].type == token.RPAR
+        )
         # last trailer can be arguments
         or (
             last