Mercurial > cpython-lru_cache-weakref
diff Objects/typeobject.c @ 22872:d462c790cc5b 2.2
- A type can now inherit its metatype from its base type. Previously,
when PyType_Ready() was called, if ob_type was found to be NULL, it
was always set to &PyType_Type; now it is set to base->ob_type,
where base is tp_base, defaulting to &PyObject_Type.
| author | Guido van Rossum <guido@python.org> |
|---|---|
| date | Mon, 08 Apr 2002 01:39:56 +0000 |
| parents | 416db8d96216 |
| children | 737f4458e5de |
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--- a/Objects/typeobject.c Sun Apr 07 21:59:38 2002 +0000 +++ b/Objects/typeobject.c Mon Apr 08 01:39:56 2002 +0000 @@ -2002,16 +2002,16 @@ type->tp_flags |= Py_TPFLAGS_READYING; + /* Initialize tp_base (defaults to BaseObject unless that's us) */ + base = type->tp_base; + if (base == NULL && type != &PyBaseObject_Type) + base = type->tp_base = &PyBaseObject_Type; + /* Initialize ob_type if NULL. This means extensions that want to be compilable separately on Windows can call PyType_Ready() instead of initializing the ob_type field of their type objects. */ if (type->ob_type == NULL) - type->ob_type = &PyType_Type; - - /* Initialize tp_base (defaults to BaseObject unless that's us) */ - base = type->tp_base; - if (base == NULL && type != &PyBaseObject_Type) - base = type->tp_base = &PyBaseObject_Type; + type->ob_type = base->ob_type; /* Initialize tp_bases */ bases = type->tp_bases;