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bpo-40170: PyType_SUPPORTS_WEAKREFS() becomes a regular function (GH-30938)

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Convert the PyType_SUPPORTS_WEAKREFS() macro to a regular function.
It no longer access the PyTypeObject.tp_weaklistoffset member
directly.

Add _PyType_SUPPORTS_WEAKREFS() static inline functions, used
internally by Python for best performance.
This commit is contained in:
Victor Stinner 2022-01-27 03:00:55 +01:00 • committed by GitHub
parent f0a648152f
commit af32b3ef1f
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GPG key ID: 4AEE18F83AFDEB23
7 changed files with 24 additions and 10 deletions
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4
Modules/_weakref.c
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@ -28,7 +28,7 @@ _weakref_getweakrefcount_impl(PyObject *module, PyObject *object)
{
PyWeakReference **list;
if (!PyType_SUPPORTS_WEAKREFS(Py_TYPE(object)))
if (!_PyType_SUPPORTS_WEAKREFS(Py_TYPE(object)))
return 0;
list = GET_WEAKREFS_LISTPTR(object);
@ -85,7 +85,7 @@ weakref_getweakrefs(PyObject *self, PyObject *object)
{
PyObject *result = NULL;
if (PyType_SUPPORTS_WEAKREFS(Py_TYPE(object))) {
if (_PyType_SUPPORTS_WEAKREFS(Py_TYPE(object))) {
PyWeakReference **list = GET_WEAKREFS_LISTPTR(object);
Py_ssize_t count = _PyWeakref_GetWeakrefCount(*list);