summaryrefslogtreecommitdiffstats
path: root/Include/genobject.h
blob: 16b983339cc649e148b729c2cf18cf570a18b9b7 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105

/* 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 */

/* _PyGenObject_HEAD defines the initial segment of generator
   and coroutine objects. */
#define _PyGenObject_HEAD(prefix)                                           \
    PyObject_HEAD                                                           \
    /* Note: gi_frame can be NULL if the generator is "finished" */         \
    struct _frame *prefix##_frame;                                          \
    /* True if generator is being executed. */                              \
    char prefix##_running;                                                  \
    /* The code object backing the generator */                             \
    PyObject *prefix##_code;                                                \
    /* List of weak reference. */                                           \
    PyObject *prefix##_weakreflist;                                         \
    /* Name of the generator. */                                            \
    PyObject *prefix##_name;                                                \
    /* Qualified name of the generator. */                                  \
    PyObject *prefix##_qualname;                                            \
    _PyErr_StackItem prefix##_exc_state;

typedef struct {
    /* The gi_ prefix is intended to remind of generator-iterator. */
    _PyGenObject_HEAD(gi)
} 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(PyObject *) PyGen_NewWithQualName(struct _frame *,
    PyObject *name, PyObject *qualname);
PyAPI_FUNC(int) PyGen_NeedsFinalizing(PyGenObject *);
PyAPI_FUNC(int) _PyGen_SetStopIterationValue(PyObject *);
PyAPI_FUNC(int) _PyGen_FetchStopIterationValue(PyObject **);
PyAPI_FUNC(PyObject *) _PyGen_Send(PyGenObject *, PyObject *);
PyObject *_PyGen_yf(PyGenObject *);
PyAPI_FUNC(void) _PyGen_Finalize(PyObject *self);

#ifndef Py_LIMITED_API
typedef struct {
    _PyGenObject_HEAD(cr)
    PyObject *cr_origin;
} PyCoroObject;

PyAPI_DATA(PyTypeObject) PyCoro_Type;
PyAPI_DATA(PyTypeObject) _PyCoroWrapper_Type;

PyAPI_DATA(PyTypeObject) _PyAIterWrapper_Type;

#define PyCoro_CheckExact(op) (Py_TYPE(op) == &PyCoro_Type)
PyObject *_PyCoro_GetAwaitableIter(PyObject *o);
PyAPI_FUNC(PyObject *) PyCoro_New(struct _frame *,
    PyObject *name, PyObject *qualname);

/* Asynchronous Generators */

typedef struct {
    _PyGenObject_HEAD(ag)
    PyObject *ag_finalizer;

    /* Flag is set to 1 when hooks set up by sys.set_asyncgen_hooks
       were called on the generator, to avoid calling them more
       than once. */
    int ag_hooks_inited;

    /* Flag is set to 1 when aclose() is called for the first time, or
       when a StopAsyncIteration exception is raised. */
    int ag_closed;
} PyAsyncGenObject;

PyAPI_DATA(PyTypeObject) PyAsyncGen_Type;
PyAPI_DATA(PyTypeObject) _PyAsyncGenASend_Type;
PyAPI_DATA(PyTypeObject) _PyAsyncGenWrappedValue_Type;
PyAPI_DATA(PyTypeObject) _PyAsyncGenAThrow_Type;

PyAPI_FUNC(PyObject *) PyAsyncGen_New(struct _frame *,
    PyObject *name, PyObject *qualname);

#define PyAsyncGen_CheckExact(op) (Py_TYPE(op) == &PyAsyncGen_Type)

PyObject *_PyAsyncGenValueWrapperNew(PyObject *);

int PyAsyncGen_ClearFreeLists(void);

#endif

#undef _PyGenObject_HEAD

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