diff options
Diffstat (limited to 'Modules/_abc.c')
| -rw-r--r-- | Modules/_abc.c | 15 |
1 files changed, 4 insertions, 11 deletions
diff --git a/Modules/_abc.c b/Modules/_abc.c index 9473905..399ecbb 100644 --- a/Modules/_abc.c +++ b/Modules/_abc.c @@ -8,7 +8,6 @@ #include "pycore_object.h" // _PyType_GetSubclasses() #include "pycore_runtime.h" // _Py_ID() #include "pycore_setobject.h" // _PySet_NextEntry() -#include "pycore_typeobject.h" // _PyType_GetMRO() #include "pycore_weakref.h" // _PyWeakref_GET_REF() #include "clinic/_abc.c.h" @@ -744,18 +743,12 @@ _abc__abc_subclasscheck_impl(PyObject *module, PyObject *self, Py_DECREF(ok); /* 4. Check if it's a direct subclass. */ - PyObject *mro = _PyType_GetMRO((PyTypeObject *)subclass); - assert(PyTuple_Check(mro)); - for (pos = 0; pos < PyTuple_GET_SIZE(mro); pos++) { - PyObject *mro_item = PyTuple_GET_ITEM(mro, pos); - assert(mro_item != NULL); - if ((PyObject *)self == mro_item) { - if (_add_to_weak_set(&impl->_abc_cache, subclass) < 0) { - goto end; - } - result = Py_True; + if (PyType_IsSubtype((PyTypeObject *)subclass, (PyTypeObject *)self)) { + if (_add_to_weak_set(&impl->_abc_cache, subclass) < 0) { goto end; } + result = Py_True; + goto end; } /* 5. Check if it's a subclass of a registered class (recursive). */ |