diff options
Diffstat (limited to 'Lib')
| -rw-r--r-- | Lib/test/test_capi/test_opt.py | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/Lib/test/test_capi/test_opt.py b/Lib/test/test_capi/test_opt.py index d847024..12542d8 100644 --- a/Lib/test/test_capi/test_opt.py +++ b/Lib/test/test_capi/test_opt.py @@ -1555,6 +1555,25 @@ class TestUopsOptimization(unittest.TestCase): with self.subTest(l=l, r=r, x=x, y=y): script_helper.assert_python_ok("-c", s) + def test_decref_escapes(self): + class Convert9999ToNone: + def __del__(self): + ns = sys._getframe(1).f_locals + if ns["i"] == 9999: + ns["i"] = None + + def crash_addition(): + try: + for i in range(10000): + n = Convert9999ToNone() + i + i # Remove guards for i. + n = None # Change i. + i + i # This crashed when we didn't treat DECREF as escaping (gh-124483) + except TypeError: + pass + + crash_addition() + def global_identity(x): return x |