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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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8
Objects/weakrefobject.c
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@ -299,7 +299,7 @@ weakref___new__(PyTypeObject *type, PyObject *args, PyObject *kwargs)
PyWeakReference *ref, *proxy;
PyWeakReference **list;
if (!PyType_SUPPORTS_WEAKREFS(Py_TYPE(ob))) {
if (!_PyType_SUPPORTS_WEAKREFS(Py_TYPE(ob))) {
PyErr_Format(PyExc_TypeError,
"cannot create weak reference to '%s' object",
Py_TYPE(ob)->tp_name);
@ -794,7 +794,7 @@ PyWeakref_NewRef(PyObject *ob, PyObject *callback)
PyWeakReference **list;
PyWeakReference *ref, *proxy;
if (!PyType_SUPPORTS_WEAKREFS(Py_TYPE(ob))) {
if (!_PyType_SUPPORTS_WEAKREFS(Py_TYPE(ob))) {
PyErr_Format(PyExc_TypeError,
"cannot create weak reference to '%s' object",
Py_TYPE(ob)->tp_name);
@ -853,7 +853,7 @@ PyWeakref_NewProxy(PyObject *ob, PyObject *callback)
PyWeakReference **list;
PyWeakReference *ref, *proxy;
if (!PyType_SUPPORTS_WEAKREFS(Py_TYPE(ob))) {
if (!_PyType_SUPPORTS_WEAKREFS(Py_TYPE(ob))) {
PyErr_Format(PyExc_TypeError,
"cannot create weak reference to '%s' object",
Py_TYPE(ob)->tp_name);
@ -949,7 +949,7 @@ PyObject_ClearWeakRefs(PyObject *object)
PyWeakReference **list;
if (object == NULL
|| !PyType_SUPPORTS_WEAKREFS(Py_TYPE(object))
|| !_PyType_SUPPORTS_WEAKREFS(Py_TYPE(object))
|| Py_REFCNT(object) != 0)
{
PyErr_BadInternalCall();