Properly visit self in >=3.9 traverse (#4051)

* Properly visit self in >=3.9 traverse

* Add comment about 3.9 behavior
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Aaron Gokaslan 2022-07-10 00:43:53 -04:00 committed by GitHub
parent 432bc5cfb5
commit f9f00495a3
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@ -531,6 +531,10 @@ extern "C" inline int pybind11_set_dict(PyObject *self, PyObject *new_dict, void
extern "C" inline int pybind11_traverse(PyObject *self, visitproc visit, void *arg) {
PyObject *&dict = *_PyObject_GetDictPtr(self);
Py_VISIT(dict);
// https://docs.python.org/3/c-api/typeobj.html#c.PyTypeObject.tp_traverse
#if PY_VERSION_HEX >= 0x03090000
Py_VISIT(Py_TYPE(self));
#endif
return 0;
}