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bpo-42972: Fully implement GC protocol for functools LRU cache (GH-26423)

This commit is contained in:
Erlend Egeberg Aasland 2021-05-28 11:02:42 +02:00 committed by GitHub
parent f8a95df84b
commit 3f8d332527
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GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 4 additions and 2 deletions
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6
Modules/_functoolsmodule.c
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@ -1255,8 +1255,8 @@ static int
lru_cache_tp_clear(lru_cache_object *self)
{
lru_list_elem *list = lru_cache_unlink_list(self);
Py_CLEAR(self->func);
Py_CLEAR(self->cache);
Py_CLEAR(self->func);
Py_CLEAR(self->kwd_mark);
Py_CLEAR(self->lru_list_elem_type);
Py_CLEAR(self->cache_info_type);
@ -1342,15 +1342,17 @@ lru_cache_deepcopy(PyObject *self, PyObject *unused)
static int
lru_cache_tp_traverse(lru_cache_object *self, visitproc visit, void *arg)
{
Py_VISIT(Py_TYPE(self));
lru_list_elem *link = self->root.next;
while (link != &self->root) {
lru_list_elem *next = link->next;
Py_VISIT(link->key);
Py_VISIT(link->result);
Py_VISIT(Py_TYPE(link));
link = next;
}
Py_VISIT(self->func);
Py_VISIT(self->cache);
Py_VISIT(self->func);
Py_VISIT(self->kwd_mark);
Py_VISIT(self->lru_list_elem_type);
Py_VISIT(self->cache_info_type);