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/* Generator object interface */

#ifndef Py_LIMITED_API
#ifndef Py_GENOBJECT_H
#define Py_GENOBJECT_H
#ifdef __cplusplus
extern "C" {
#endif

struct _frame; /* Avoid including frameobject.h */

typedef struct {
    PyObject_HEAD
    /* The gi_ prefix is intended to remind of generator-iterator. */

    /* Note: gi_frame can be NULL if the generator is "finished" */
    struct _frame *gi_frame;

    /* True if generator is being executed. */
    char gi_running;

    /* The code object backing the generator */
    PyObject *gi_code;

    /* List of weak reference. */
    PyObject *gi_weakreflist;
} PyGenObject;

PyAPI_DATA(PyTypeObject) PyGen_Type;

#define PyGen_Check(op) PyObject_TypeCheck(op, &PyGen_Type)
#define PyGen_CheckExact(op) (Py_TYPE(op) == &PyGen_Type)

PyAPI_FUNC(PyObject *) PyGen_New(struct _frame *);
PyAPI_FUNC(int) PyGen_NeedsFinalizing(PyGenObject *);
PyAPI_FUNC(int) _PyGen_FetchStopIterationValue(PyObject **);
PyObject *_PyGen_Send(PyGenObject *, PyObject *);

#ifdef __cplusplus
}
#endif
#endif /* !Py_GENOBJECT_H */
#endif /* Py_LIMITED_API */