Speed up PyType_stgdict and PyObject_stgdict.
diff --git a/Modules/_ctypes/stgdict.c b/Modules/_ctypes/stgdict.c
index 1ddbf85..149a7ea 100644
--- a/Modules/_ctypes/stgdict.c
+++ b/Modules/_ctypes/stgdict.c
@@ -134,16 +134,25 @@
type = (PyTypeObject *)obj;
if (!PyType_HasFeature(type, Py_TPFLAGS_HAVE_CLASS))
return NULL;
- if (!type->tp_dict || !StgDict_Check(type->tp_dict))
+ if (!type->tp_dict || !StgDict_CheckExact(type->tp_dict))
return NULL;
return (StgDictObject *)type->tp_dict;
}
/* May return NULL, but does not set an exception! */
+/*
+ This function should be as fast as possible, so we don't call PyType_stgdict
+ above but inline the code, and avoid the PyType_Check().
+*/
StgDictObject *
PyObject_stgdict(PyObject *self)
{
- return PyType_stgdict((PyObject *)self->ob_type);
+ PyTypeObject *type = self->ob_type;
+ if (!PyType_HasFeature(type, Py_TPFLAGS_HAVE_CLASS))
+ return NULL;
+ if (!type->tp_dict || !StgDict_CheckExact(type->tp_dict))
+ return NULL;
+ return (StgDictObject *)type->tp_dict;
}
/* descr is the descriptor for a field marked as anonymous. Get all the