diff options
Diffstat (limited to 'Objects/typeobject.c')
| -rw-r--r-- | Objects/typeobject.c | 20 |
1 files changed, 19 insertions, 1 deletions
diff --git a/Objects/typeobject.c b/Objects/typeobject.c index 848203e4d7..e626a17f76 100644 --- a/Objects/typeobject.c +++ b/Objects/typeobject.c @@ -2205,7 +2205,7 @@ PyTypeObject PyType_Type = { (setattrofunc)type_setattro, /* tp_setattro */ 0, /* tp_as_buffer */ Py_TPFLAGS_DEFAULT | Py_TPFLAGS_HAVE_GC | - Py_TPFLAGS_BASETYPE, /* tp_flags */ + Py_TPFLAGS_BASETYPE | Py_TPFLAGS_TYPE_SUBCLASS, /* tp_flags */ type_doc, /* tp_doc */ (traverseproc)type_traverse, /* tp_traverse */ (inquiry)type_clear, /* tp_clear */ @@ -2874,6 +2874,24 @@ inherit_special(PyTypeObject *type, PyTypeObject *base) COPYVAL(tp_itemsize); COPYVAL(tp_weaklistoffset); COPYVAL(tp_dictoffset); + + /* Setup fast subclass flags */ + if (PyType_IsSubtype(base, (PyTypeObject*)PyExc_BaseException)) + type->tp_flags |= Py_TPFLAGS_BASE_EXC_SUBCLASS; + else if (PyType_IsSubtype(base, &PyType_Type)) + type->tp_flags |= Py_TPFLAGS_TYPE_SUBCLASS; + else if (PyType_IsSubtype(base, &PyLong_Type)) + type->tp_flags |= Py_TPFLAGS_LONG_SUBCLASS; + else if (PyType_IsSubtype(base, &PyString_Type)) + type->tp_flags |= Py_TPFLAGS_STRING_SUBCLASS; + else if (PyType_IsSubtype(base, &PyUnicode_Type)) + type->tp_flags |= Py_TPFLAGS_UNICODE_SUBCLASS; + else if (PyType_IsSubtype(base, &PyTuple_Type)) + type->tp_flags |= Py_TPFLAGS_TUPLE_SUBCLASS; + else if (PyType_IsSubtype(base, &PyList_Type)) + type->tp_flags |= Py_TPFLAGS_LIST_SUBCLASS; + else if (PyType_IsSubtype(base, &PyDict_Type)) + type->tp_flags |= Py_TPFLAGS_DICT_SUBCLASS; } /* Map rich comparison operators to their __xx__ namesakes */ |