diff options
Diffstat (limited to 'Objects/typeobject.c')
| -rw-r--r-- | Objects/typeobject.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/Objects/typeobject.c b/Objects/typeobject.c index 1bef2088c9..f716906749 100644 --- a/Objects/typeobject.c +++ b/Objects/typeobject.c @@ -655,6 +655,17 @@ subtype_dealloc(PyObject *self) goto endlabel; /* resurrected */ else _PyObject_GC_UNTRACK(self); + /* New weakrefs could be created during the finalizer call. + If this occurs, clear them out without calling their + finalizers since they might rely on part of the object + being finalized that has already been destroyed. */ + if (type->tp_weaklistoffset && !base->tp_weaklistoffset) { + /* Modeled after GET_WEAKREFS_LISTPTR() */ + PyWeakReference **list = (PyWeakReference **) \ + PyObject_GET_WEAKREFS_LISTPTR(self); + while (*list) + _PyWeakref_ClearRef(*list); + } } /* Clear slots up to the nearest base with a different tp_dealloc */ |