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[3.11] GH-103971: Fix incorrect locations for code following case blocks

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Tian Gao 2023-04-28 13:08:25 -07:00 • committed by GitHub
parent 4219074127
commit fee3c91a19
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13
Lib/test/test_patma.py
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@ -3151,6 +3151,19 @@ class TestTracing(unittest.TestCase):
self.assertListEqual(self._trace(f, "go x"), [1, 2, 3])
self.assertListEqual(self._trace(f, "spam"), [1, 2, 3])
def test_unreachable_code(self):
def f(command): # 0
match command: # 1
case 1: # 2
if False: # 3
return 1 # 4
case _: # 5
if False: # 6
return 0 # 7
self.assertListEqual(self._trace(f, 1), [1, 2, 3])
self.assertListEqual(self._trace(f, 0), [1, 2, 5, 6])
def test_parser_deeply_nested_patterns(self):
# Deeply nested patterns can cause exponential backtracking when parsing.
# See gh-93671 for more information.