Mercurial > cpython-lru_cache-weakref

diff Objects/typeobject.c @ 23856:868cfbdca909 legacy-trunk

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Inexplicably, recurse_down_subclasses() was comparing the object gotten from a weak reference to NULL instead of to None. This caused the following assert() to fail (but only in 2.2 in the debug build -- I have to find a better test case). Will backport.
author Guido van Rossum <guido@python.org>
date Fri, 14 Jun 2002 02:27:07 +0000
parents ed1ba37a46b7
children 066f8938071a
line wrap: on
line diff
--- a/Objects/typeobject.c	Fri Jun 14 02:04:18 2002 +0000
+++ b/Objects/typeobject.c	Fri Jun 14 02:27:07 2002 +0000
@@ -4029,7 +4029,8 @@
 		ref = PyList_GET_ITEM(subclasses, i);
 		assert(PyWeakref_CheckRef(ref));
 		subclass = (PyTypeObject *)PyWeakref_GET_OBJECT(ref);
-		if (subclass == NULL)
+		assert(subclass != NULL);
+		if ((PyObject *)subclass == Py_None)
 			continue;
 		assert(PyType_Check(subclass));
 		/* Avoid recursing down into unaffected classes */