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gh-118789: Restore hidden _PyWeakref_ClearRef (#118797)

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_PyWeakref_ClearRef was previously exposed in the public C-API, although
it begins with an underscore and is not documented. It's used by a few
C-API extensions. There is currently no alternative public API that can
replace its use.

_PyWeakref_ClearWeakRefsExceptCallbacks is the only thread-safe way to
use _PyWeakref_ClearRef in the free-threaded build. This exposes the C
symbol, but does not make the API public.
This commit is contained in:
Sam Gross 2024-05-10 09:54:18 -04:00 committed by GitHub
parent a895756aec
commit db5af7da09
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GPG Key ID: B5690EEEBB952194
3 changed files with 4 additions and 2 deletions
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2
Include/cpython/weakrefobject.h
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@ -40,6 +40,8 @@ struct _PyWeakReference {
#endif #endif
}; };
PyAPI_FUNC(void) _PyWeakref_ClearRef(PyWeakReference *self);
Py_DEPRECATED(3.13) static inline PyObject* PyWeakref_GET_OBJECT(PyObject *ref_obj) Py_DEPRECATED(3.13) static inline PyObject* PyWeakref_GET_OBJECT(PyObject *ref_obj)
{ {
PyWeakReference *ref; PyWeakReference *ref;

2
Include/internal/pycore_weakref.h
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@ -111,8 +111,6 @@ extern Py_ssize_t _PyWeakref_GetWeakrefCount(PyObject *obj);
// intact. // intact.
extern void _PyWeakref_ClearWeakRefsExceptCallbacks(PyObject *obj); extern void _PyWeakref_ClearWeakRefsExceptCallbacks(PyObject *obj);
extern void _PyWeakref_ClearRef(PyWeakReference *self);
PyAPI_FUNC(int) _PyWeakref_IsDead(PyObject *weakref); PyAPI_FUNC(int) _PyWeakref_IsDead(PyObject *weakref);
#ifdef __cplusplus #ifdef __cplusplus

2
Misc/NEWS.d/next/C API/2024-05-08-20-13-00.gh-issue-118789.m88uUa.rst Normal file
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@ -0,0 +1,2 @@
Restore ``_PyWeakref_ClearRef`` that was previously removed in Python 3.13
alpha 1.