black/parser: support as-exprs within call args (psf#2608)

isidentical · web-flow · commit 147d075a4c70 · 2021-11-14T06:04:31.000-08:00
diff --git a/src/blib2to3/Grammar.txt b/src/blib2to3/Grammar.txt
@@ -186,6 +186,7 @@ arglist: argument (',' argument)* [',']
 # that precede iterable unpackings are blocked; etc.
 argument: ( test [comp_for] |
             test ':=' test |
+            test 'as' test |
             test '=' test |
 	    '**' test |
             '*' test )
diff --git a/tests/data/pattern_matching_extras.py b/tests/data/pattern_matching_extras.py
@@ -0,0 +1,9 @@
+match something:
+    case [a as b]:
+        print(b)
+    case [a as b, c, d, e as f]:
+        print(f)
+    case Point(a as b):
+        print(b)
+    case Point(int() as x, int() as y):
+        print(x, y)
diff --git a/tests/test_format.py b/tests/test_format.py
@@ -73,6 +73,7 @@
 PY310_CASES = [
     "pattern_matching_simple",
     "pattern_matching_complex",
+    "pattern_matching_extras",
     "parenthesized_context_managers",
 ]
 

Original file line number	Diff line number	Diff line change
`@@ -73,6 +73,7 @@`
`73`	`73`	`PY310_CASES = [`
`74`	`74`	`"pattern_matching_simple",`
`75`	`75`	`"pattern_matching_complex",`
	`76`	`+ "pattern_matching_extras",`
`76`	`77`	`"parenthesized_context_managers",`
`77`	`78`	`]`
`78`	`79`