Na}{

File Content: `weakrefobject.h`

#ifndef Py_CPYTHON_WEAKREFOBJECT_H
#  error "this header file must not be included directly"
#endif

/* PyWeakReference is the base struct for the Python ReferenceType, ProxyType,
 * and CallableProxyType.
 */
struct _PyWeakReference {
    PyObject_HEAD

    /* The object to which this is a weak reference, or Py_None if none.
     * Note that this is a stealth reference:  wr_object's refcount is
     * not incremented to reflect this pointer.
     */
    PyObject *wr_object;

    /* A callable to invoke when wr_object dies, or NULL if none. */
    PyObject *wr_callback;

    /* A cache for wr_object's hash code.  As usual for hashes, this is -1
     * if the hash code isn't known yet.
     */
    Py_hash_t hash;

    /* If wr_object is weakly referenced, wr_object has a doubly-linked NULL-
     * terminated list of weak references to it.  These are the list pointers.
     * If wr_object goes away, wr_object is set to Py_None, and these pointers
     * have no meaning then.
     */
    PyWeakReference *wr_prev;
    PyWeakReference *wr_next;
    vectorcallfunc vectorcall;
};

PyAPI_FUNC(Py_ssize_t) _PyWeakref_GetWeakrefCount(PyWeakReference *head);

PyAPI_FUNC(void) _PyWeakref_ClearRef(PyWeakReference *self);

static inline PyObject* PyWeakref_GET_OBJECT(PyObject *ref_obj) {
    PyWeakReference *ref;
    PyObject *obj;
    assert(PyWeakref_Check(ref_obj));
    ref = _Py_CAST(PyWeakReference*, ref_obj);
    obj = ref->wr_object;
    // Explanation for the Py_REFCNT() check: when a weakref's target is part
    // of a long chain of deallocations which triggers the trashcan mechanism,
    // clearing the weakrefs can be delayed long after the target's refcount
    // has dropped to zero.  In the meantime, code accessing the weakref will
    // be able to "see" the target object even though it is supposed to be
    // unreachable.  See issue gh-60806.
    if (Py_REFCNT(obj) > 0) {
        return obj;
    }
    return Py_None;
}
#if !defined(Py_LIMITED_API) || Py_LIMITED_API+0 < 0x030b0000
#  define PyWeakref_GET_OBJECT(ref) PyWeakref_GET_OBJECT(_PyObject_CAST(ref))
#endif

Name	Size	Permission
abstract.h	8229 bytes	0644
bytearrayobject.h	1305 bytes	0644
bytesobject.h	4802 bytes	0644
cellobject.h	723 bytes	0644
ceval.h	1239 bytes	0644
classobject.h	1656 bytes	0644
code.h	11484 bytes	0644
compile.h	2218 bytes	0644
complexobject.h	1248 bytes	0644
context.h	1959 bytes	0644
descrobject.h	1642 bytes	0644
dictobject.h	3324 bytes	0644
fileobject.h	818 bytes	0644
fileutils.h	232 bytes	0644
floatobject.h	702 bytes	0644
frameobject.h	1108 bytes	0644
funcobject.h	4424 bytes	0644
genobject.h	3279 bytes	0644
import.h	1526 bytes	0644
initconfig.h	7817 bytes	0644
listobject.h	1769 bytes	0644
longintrepr.h	3817 bytes	0644
longobject.h	4532 bytes	0644
methodobject.h	2556 bytes	0644
modsupport.h	4303 bytes	0644
object.h	18305 bytes	0644
objimpl.h	2998 bytes	0644
odictobject.h	1299 bytes	0644
picklebufobject.h	846 bytes	0644
pthread_stubs.h	3505 bytes	0644
pyctype.h	1387 bytes	0644
pydebug.h	1073 bytes	0644
pyerrors.h	4522 bytes	0644
pyfpe.h	444 bytes	0644
pyframe.h	582 bytes	0644
pylifecycle.h	2099 bytes	0644
pymem.h	3379 bytes	0644
pystate.h	14351 bytes	0644
pythonrun.h	4811 bytes	0644
pythread.h	1426 bytes	0644
pytime.h	12158 bytes	0644
setobject.h	1997 bytes	0644
sysmodule.h	489 bytes	0644
traceback.h	444 bytes	0644
tupleobject.h	1513 bytes	0644
unicodeobject.h	42739 bytes	0644
warnings.h	560 bytes	0644
weakrefobject.h	2103 bytes	0644

File Content: weakrefobject.h

File Content: `weakrefobject.h`