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gh-103968: PyType_FromMetaclass: Allow metaclasses with tp_new=NULL (GH-105386)

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Petr Viktorin 2023-06-12 17:45:49 +02:00 • committed by GitHub
parent 58f0bda341
commit 2b90796be6
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5 changed files with 53 additions and 9 deletions
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13
Modules/_testcapi/heaptype.c
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@ -744,6 +744,12 @@ static PyType_Spec HeapCTypeMetaclassCustomNew_spec = {
HeapCTypeMetaclassCustomNew_slots
};
static PyType_Spec HeapCTypeMetaclassNullNew_spec = {
.name = "_testcapi.HeapCTypeMetaclassNullNew",
.flags = Py_TPFLAGS_DEFAULT | Py_TPFLAGS_DISALLOW_INSTANTIATION,
.slots = empty_type_slots
};
typedef struct {
PyObject_HEAD
@ -1231,6 +1237,13 @@ _PyTestCapi_Init_Heaptype(PyObject *m) {
}
PyModule_AddObject(m, "HeapCTypeMetaclassCustomNew", HeapCTypeMetaclassCustomNew);
PyObject *HeapCTypeMetaclassNullNew = PyType_FromMetaclass(
&PyType_Type, m, &HeapCTypeMetaclassNullNew_spec, (PyObject *) &PyType_Type);
if (HeapCTypeMetaclassNullNew == NULL) {
return -1;
}
PyModule_AddObject(m, "HeapCTypeMetaclassNullNew", HeapCTypeMetaclassNullNew);
PyObject *HeapCCollection = PyType_FromMetaclass(
NULL, m, &HeapCCollection_spec, NULL);
if (HeapCCollection == NULL) {