#ifndef Py_WEAKREFOBJECT_H
#define Py_WEAKREFOBJECT_H
typedef struct _PyWeakReference PyWeakReference
;
/* PyWeakReference is the base struct for the Python ReferenceType, ProxyType,
struct _PyWeakReference
{
/* 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.
/* A callable to invoke when wr_object dies, or NULL if none. */
/* A cache for wr_object's hash code. As usual for hashes, this is -1
* if the hash code isn't known yet.
/* 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
PyWeakReference
*wr_prev
;
PyWeakReference
*wr_next
;
PyAPI_DATA(PyTypeObject
) _PyWeakref_RefType
;
PyAPI_DATA(PyTypeObject
) _PyWeakref_ProxyType
;
PyAPI_DATA(PyTypeObject
) _PyWeakref_CallableProxyType
;
#define PyWeakref_CheckRef(op) PyObject_TypeCheck(op, &_PyWeakref_RefType)
#define PyWeakref_CheckRefExact(op) \
((op)->ob_type == &_PyWeakref_RefType)
#define PyWeakref_CheckProxy(op) \
(((op)->ob_type == &_PyWeakref_ProxyType) || \
((op)->ob_type == &_PyWeakref_CallableProxyType))
/* This macro calls PyWeakref_CheckRef() last since that can involve a
function call; this makes it more likely that the function call
#define PyWeakref_Check(op) \
(PyWeakref_CheckRef(op) || PyWeakref_CheckProxy(op))
PyAPI_FUNC(PyObject
*) PyWeakref_NewRef(PyObject
*ob
,
PyAPI_FUNC(PyObject
*) PyWeakref_NewProxy(PyObject
*ob
,
PyAPI_FUNC(PyObject
*) PyWeakref_GetObject(PyObject
*ref
);
PyAPI_FUNC(long) _PyWeakref_GetWeakrefCount(PyWeakReference
*head
);
PyAPI_FUNC(void) _PyWeakref_ClearRef(PyWeakReference
*self
);
#define PyWeakref_GET_OBJECT(ref) (((PyWeakReference *)(ref))->wr_object)
#endif /* !Py_WEAKREFOBJECT_H */