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bpo-32999: Revert GH-6002 (fc7df0e6) (GH-6189) 

bpo-33018 (GH-5944) fixed bpo-32999 too.  So fc7df0e6 is not required
anymore.  Revert it except test case.
This commit is contained in:
INADA Naoki 2018-03-22 21:52:42 +09:00 committed by GitHub
parent 40472dd42d
commit f757b72b25
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GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 11 additions and 24 deletions
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35
Modules/_abc.c
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@ -16,7 +16,6 @@ _Py_IDENTIFIER(__abstractmethods__);
_Py_IDENTIFIER(__class__);
_Py_IDENTIFIER(__dict__);
_Py_IDENTIFIER(__bases__);
_Py_IDENTIFIER(__mro__);
_Py_IDENTIFIER(_abc_impl);
_Py_IDENTIFIER(__subclasscheck__);
_Py_IDENTIFIER(__subclasshook__);
@ -574,7 +573,7 @@ _abc__abc_subclasscheck_impl(PyObject *module, PyObject *self,
return NULL;
}
PyObject *ok, *mro = NULL, *subclasses = NULL, *result = NULL;
PyObject *ok, *subclasses = NULL, *result = NULL;
Py_ssize_t pos;
int incache;
_abc_data *impl = _get_impl(self);
@ -643,31 +642,20 @@ _abc__abc_subclasscheck_impl(PyObject *module, PyObject *self,
}
Py_DECREF(ok);
/* 4. Check if it's a direct subclass.
*
* if cls in getattr(subclass, '__mro__', ()):
* cls._abc_cache.add(subclass)
* return True
*/
if (_PyObject_LookupAttrId(subclass, &PyId___mro__, &mro) < 0) {
goto end;
}
if (mro != NULL) {
if (!PyTuple_Check(mro)) {
// Python version supports non-tuple iterable. Keep it as
// implementation detail.
PyErr_SetString(PyExc_TypeError, "__mro__ is not a tuple");
/* 4. Check if it's a direct subclass. */
PyObject *mro = ((PyTypeObject *)subclass)->tp_mro;
assert(PyTuple_Check(mro));
for (pos = 0; pos < PyTuple_GET_SIZE(mro); pos++) {
PyObject *mro_item = PyTuple_GET_ITEM(mro, pos);
if (mro_item == NULL) {
goto end;
}
for (pos = 0; pos < PyTuple_GET_SIZE(mro); pos++) {
PyObject *mro_item = PyTuple_GET_ITEM(mro, pos);
if ((PyObject *)self == mro_item) {
if (_add_to_weak_set(&impl->_abc_cache, subclass) < 0) {
goto end;
}
result = Py_True;
if ((PyObject *)self == mro_item) {
if (_add_to_weak_set(&impl->_abc_cache, subclass) < 0) {
goto end;
}
result = Py_True;
goto end;
}
}
@ -708,7 +696,6 @@ _abc__abc_subclasscheck_impl(PyObject *module, PyObject *self,
end:
Py_DECREF(impl);
Py_XDECREF(mro);
Py_XDECREF(subclasses);
Py_XINCREF(result);
return result;