1 /* Weak references objects for Python. */ 2 3 #ifndef Py_WEAKREFOBJECT_H 4 #define Py_WEAKREFOBJECT_H 5 #ifdef __cplusplus 6 extern "C" { 7 #endif 8 9 typedef struct _PyWeakReference PyWeakReference; 10 11 PyAPI_DATA(PyTypeObject) _PyWeakref_RefType; 12 PyAPI_DATA(PyTypeObject) _PyWeakref_ProxyType; 13 PyAPI_DATA(PyTypeObject) _PyWeakref_CallableProxyType; 14 15 #define PyWeakref_CheckRef(op) PyObject_TypeCheck((op), &_PyWeakref_RefType) 16 #define PyWeakref_CheckRefExact(op) \ 17 Py_IS_TYPE((op), &_PyWeakref_RefType) 18 #define PyWeakref_CheckProxy(op) \ 19 (Py_IS_TYPE((op), &_PyWeakref_ProxyType) \ 20 || Py_IS_TYPE((op), &_PyWeakref_CallableProxyType)) 21 22 #define PyWeakref_Check(op) \ 23 (PyWeakref_CheckRef(op) || PyWeakref_CheckProxy(op)) 24 25 26 PyAPI_FUNC(PyObject *) PyWeakref_NewRef(PyObject *ob, 27 PyObject *callback); 28 PyAPI_FUNC(PyObject *) PyWeakref_NewProxy(PyObject *ob, 29 PyObject *callback); 30 Py_DEPRECATED(3.13) PyAPI_FUNC(PyObject *) PyWeakref_GetObject(PyObject *ref); 31 32 #if !defined(Py_LIMITED_API) || Py_LIMITED_API+0 >= 0x030D0000 33 PyAPI_FUNC(int) PyWeakref_GetRef(PyObject *ref, PyObject **pobj); 34 #endif 35 36 37 #ifndef Py_LIMITED_API 38 # define Py_CPYTHON_WEAKREFOBJECT_H 39 # include "cpython/weakrefobject.h" 40 # undef Py_CPYTHON_WEAKREFOBJECT_H 41 #endif 42 43 #ifdef __cplusplus 44 } 45 #endif 46 #endif /* !Py_WEAKREFOBJECT_H */ 47