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  #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  
      47  static 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  
      58  static 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  
      65  static 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