1#ifndef Py_CPYTHON_METHODOBJECT_H
2#  error "this header file must not be included directly"
3#endif
4
5// PyCFunctionObject structure
6
7typedef struct {
8    PyObject_HEAD
9    PyMethodDef *m_ml; /* Description of the C function to call */
10    PyObject    *m_self; /* Passed as 'self' arg to the C func, can be NULL */
11    PyObject    *m_module; /* The __module__ attribute, can be anything */
12    PyObject    *m_weakreflist; /* List of weak references */
13    vectorcallfunc vectorcall;
14} PyCFunctionObject;
15
16#define _PyCFunctionObject_CAST(func) \
17    (assert(PyCFunction_Check(func)), \
18     _Py_CAST(PyCFunctionObject*, (func)))
19
20
21// PyCMethodObject structure
22
23typedef struct {
24    PyCFunctionObject func;
25    PyTypeObject *mm_class; /* Class that defines this method */
26} PyCMethodObject;
27
28#define _PyCMethodObject_CAST(func) \
29    (assert(PyCMethod_Check(func)), \
30     _Py_CAST(PyCMethodObject*, (func)))
31
32PyAPI_DATA(PyTypeObject) PyCMethod_Type;
33
34#define PyCMethod_CheckExact(op) Py_IS_TYPE(op, &PyCMethod_Type)
35#define PyCMethod_Check(op) PyObject_TypeCheck(op, &PyCMethod_Type)
36
37
38/* Static inline functions for direct access to these values.
39   Type checks are *not* done, so use with care. */
40static inline PyCFunction PyCFunction_GET_FUNCTION(PyObject *func) {
41    return _PyCFunctionObject_CAST(func)->m_ml->ml_meth;
42}
43#if !defined(Py_LIMITED_API) || Py_LIMITED_API+0 < 0x030b0000
44#  define PyCFunction_GET_FUNCTION(func) PyCFunction_GET_FUNCTION(_PyObject_CAST(func))
45#endif
46
47static inline PyObject* PyCFunction_GET_SELF(PyObject *func_obj) {
48    PyCFunctionObject *func = _PyCFunctionObject_CAST(func_obj);
49    if (func->m_ml->ml_flags & METH_STATIC) {
50        return _Py_NULL;
51    }
52    return func->m_self;
53}
54#if !defined(Py_LIMITED_API) || Py_LIMITED_API+0 < 0x030b0000
55#  define PyCFunction_GET_SELF(func) PyCFunction_GET_SELF(_PyObject_CAST(func))
56#endif
57
58static inline int PyCFunction_GET_FLAGS(PyObject *func) {
59    return _PyCFunctionObject_CAST(func)->m_ml->ml_flags;
60}
61#if !defined(Py_LIMITED_API) || Py_LIMITED_API+0 < 0x030b0000
62#  define PyCFunction_GET_FLAGS(func) PyCFunction_GET_FLAGS(_PyObject_CAST(func))
63#endif
64
65static inline PyTypeObject* PyCFunction_GET_CLASS(PyObject *func_obj) {
66    PyCFunctionObject *func = _PyCFunctionObject_CAST(func_obj);
67    if (func->m_ml->ml_flags & METH_METHOD) {
68        return _PyCMethodObject_CAST(func)->mm_class;
69    }
70    return _Py_NULL;
71}
72#if !defined(Py_LIMITED_API) || Py_LIMITED_API+0 < 0x030b0000
73#  define PyCFunction_GET_CLASS(func) PyCFunction_GET_CLASS(_PyObject_CAST(func))
74#endif
75