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bpo-40149: Implement traverse in _abc._abc_data (GH-19412) 

Implement traverse and clear slots in _abc._abc_data type.
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Victor Stinner 2020-04-07 18:36:04 +02:00 committed by GitHub
parent d8acf0d9aa
commit 9cc3ebd7e0
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2 changed files with 23 additions and 4 deletions
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1
Misc/NEWS.d/next/Library/2020-04-07-18-06-38.bpo-40149.mMU2iu.rst Normal file
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@ -0,0 +1 @@
Implement traverse and clear slots in _abc._abc_data type.

26
Modules/_abc.c
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@ -51,13 +51,29 @@ typedef struct {
unsigned long long _abc_negative_cache_version;
} _abc_data;
static int
abc_data_traverse(_abc_data *self, visitproc visit, void *arg)
{
Py_VISIT(self->_abc_registry);
Py_VISIT(self->_abc_cache);
Py_VISIT(self->_abc_negative_cache);
return 0;
}
static int
abc_data_clear(_abc_data *self)
{
Py_CLEAR(self->_abc_registry);
Py_CLEAR(self->_abc_cache);
Py_CLEAR(self->_abc_negative_cache);
return 0;
}
static void
abc_data_dealloc(_abc_data *self)
{
PyTypeObject *tp = Py_TYPE(self);
Py_XDECREF(self->_abc_registry);
Py_XDECREF(self->_abc_cache);
Py_XDECREF(self->_abc_negative_cache);
(void)abc_data_clear(self);
tp->tp_free(self);
Py_DECREF(tp);
}
@ -84,13 +100,15 @@ static PyType_Slot _abc_data_type_spec_slots[] = {
{Py_tp_doc, (void *)abc_data_doc},
{Py_tp_new, abc_data_new},
{Py_tp_dealloc, abc_data_dealloc},
{Py_tp_traverse, abc_data_traverse},
{Py_tp_clear, abc_data_clear},
{0, 0}
};
static PyType_Spec _abc_data_type_spec = {
.name = "_abc._abc_data",
.basicsize = sizeof(_abc_data),
.flags = Py_TPFLAGS_DEFAULT,
.flags = Py_TPFLAGS_DEFAULT | Py_TPFLAGS_HAVE_GC,
.slots = _abc_data_type_spec_slots,
};