Fix call patterns that contain as-expression on the kwargs (#2749)

diff --git a/CHANGES.md b/CHANGES.md
index bfecbb7831d70893248efc013319eba90dede200..ec2f5dc52ab118673dfc895598cfc9e7cc991085 100644 (file)
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -12,6 +12,8 @@
   (#2686)
 - Fix cases that contain multiple top-level as-expressions, like `case 1 as a, 2 as b`
   (#2716)
+- Fix call patterns that contain as-expressions with keyword arguments, like
+  `case Foo(bar=baz as quux)` (#2749)
 - No longer color diff headers white as it's unreadable in light themed terminals
   (#2691)
 - Tuple unpacking on `return` and `yield` constructs now implies 3.8+ (#2700)

diff --git a/src/blib2to3/Grammar.txt b/src/blib2to3/Grammar.txt
index 27776a3b65c153f4762774cff3113d2d9843f7a7..cf4799f8abe860acff10cb1c0fe84ec5130a3b77 100644 (file)
--- a/src/blib2to3/Grammar.txt
+++ b/src/blib2to3/Grammar.txt
@@ -187,7 +187,7 @@ arglist: argument (',' argument)* [',']
 argument: ( test [comp_for] |
             test ':=' test |
             test 'as' test |
-            test '=' test |
+            test '=' asexpr_test |
            '**' test |
             '*' test )
 

diff --git a/tests/data/pattern_matching_extras.py b/tests/data/pattern_matching_extras.py
index b652d2685ec1f529b8d2d489c13e9e39254ee385..9f6907f7575f0c673abe9230f4c51a54d1312620 100644 (file)
--- a/tests/data/pattern_matching_extras.py
+++ b/tests/data/pattern_matching_extras.py
@@ -103,3 +103,17 @@ match something:
 
     case 4 as d, (5 as e), (6 | 7 as g), *h:
         pass
+
+
+match bar1:
+    case Foo(aa=Callable() as aa, bb=int()):
+        print(bar1.aa, bar1.bb)
+    case _:
+        print("no match", "\n")
+
+
+match bar1:
+    case Foo(
+        normal=x, perhaps=[list, {an: d, dict: 1.0}] as y, otherwise=something, q=t as u
+    ):
+        pass