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The C and C++ Include Header Files

/usr/include/python3.12/cpython/methodobject.h

$ cat -n /usr/include/python3.12/cpython/methodobject.h

     1	#ifndef Py_CPYTHON_METHODOBJECT_H
     2	#  error "this header file must not be included directly"
     3	#endif
     4	
     5	// PyCFunctionObject structure
     6	
     7	typedef 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	
    23	typedef 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	
    32	PyAPI_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. */
    40	static inline PyCFunction PyCFunction_GET_FUNCTION(PyObject *func) {
    41	    return _PyCFunctionObject_CAST(func)->m_ml->ml_meth;
    42	}
    43	#define PyCFunction_GET_FUNCTION(func) PyCFunction_GET_FUNCTION(_PyObject_CAST(func))
    44	
    45	static inline PyObject* PyCFunction_GET_SELF(PyObject *func_obj) {
    46	    PyCFunctionObject *func = _PyCFunctionObject_CAST(func_obj);
    47	    if (func->m_ml->ml_flags & METH_STATIC) {
    48	        return _Py_NULL;
    49	    }
    50	    return func->m_self;
    51	}
    52	#define PyCFunction_GET_SELF(func) PyCFunction_GET_SELF(_PyObject_CAST(func))
    53	
    54	static inline int PyCFunction_GET_FLAGS(PyObject *func) {
    55	    return _PyCFunctionObject_CAST(func)->m_ml->ml_flags;
    56	}
    57	#define PyCFunction_GET_FLAGS(func) PyCFunction_GET_FLAGS(_PyObject_CAST(func))
    58	
    59	static inline PyTypeObject* PyCFunction_GET_CLASS(PyObject *func_obj) {
    60	    PyCFunctionObject *func = _PyCFunctionObject_CAST(func_obj);
    61	    if (func->m_ml->ml_flags & METH_METHOD) {
    62	        return _PyCMethodObject_CAST(func)->mm_class;
    63	    }
    64	    return _Py_NULL;
    65	}
    66	#define PyCFunction_GET_CLASS(func) PyCFunction_GET_CLASS(_PyObject_CAST(func))
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