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))