#ifndef Py_WEAKREFOBJECT_H

#define Py_WEAKREFOBJECT_H

#ifdef __cplusplus

extern "C" {

typedef struct _PyWeakReference PyWeakReference;

struct _PyWeakReference {

};

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) \

(Py_TYPE(op) == &_PyWeakref_RefType)

#define PyWeakref_CheckProxy(op) \

((Py_TYPE(op) == &_PyWeakref_ProxyType) || \

(Py_TYPE(op) == &_PyWeakref_CallableProxyType))

#define PyWeakref_Check(op) \

(PyWeakref_CheckRef(op) || PyWeakref_CheckProxy(op))

PyAPI_FUNC(PyObject *) PyWeakref_NewRef(PyObject *ob,

PyObject *callback);

PyAPI_FUNC(PyObject *) PyWeakref_NewProxy(PyObject *ob,

PyObject *callback);

PyAPI_FUNC(PyObject *) PyWeakref_GetObject(PyObject *ref);

PyAPI_FUNC(Py_ssize_t) _PyWeakref_GetWeakrefCount(PyWeakReference *head);

PyAPI_FUNC(void) _PyWeakref_ClearRef(PyWeakReference *self);

#define PyWeakref_GET_OBJECT(ref) \

(Py_REFCNT(((PyWeakReference *)(ref))->wr_object) > 0 \

? ((PyWeakReference *)(ref))->wr_object \

: Py_None)

#ifdef __cplusplus

}

#endif /* !Py_WEAKREFOBJECT_H */