methodobject.h 3.1 KB
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/* Method object interface */

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#ifndef Py_METHODOBJECT_H
#define Py_METHODOBJECT_H
#ifdef __cplusplus
extern "C" {
#endif

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/* This is about the type 'builtin_function_or_method',
   not Python methods in user-defined classes.  See classobject.h
   for the latter. */

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PyAPI_DATA(PyTypeObject) PyCFunction_Type;
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#define PyCFunction_Check(op) ((op)->ob_type == &PyCFunction_Type)
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typedef PyObject *(*PyCFunction)(PyObject *, PyObject *);
typedef PyObject *(*PyCFunctionWithKeywords)(PyObject *, PyObject *,
					     PyObject *);
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typedef PyObject *(*PyNoArgsFunction)(PyObject *);
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PyAPI_FUNC(PyCFunction) PyCFunction_GetFunction(PyObject *);
PyAPI_FUNC(PyObject *) PyCFunction_GetSelf(PyObject *);
PyAPI_FUNC(int) PyCFunction_GetFlags(PyObject *);
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/* Macros for direct access to these values. Type checks are *not*
   done, so use with care. */
#define PyCFunction_GET_FUNCTION(func) \
        (((PyCFunctionObject *)func) -> m_ml -> ml_meth)
#define PyCFunction_GET_SELF(func) \
	(((PyCFunctionObject *)func) -> m_self)
#define PyCFunction_GET_FLAGS(func) \
	(((PyCFunctionObject *)func) -> m_ml -> ml_flags)
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PyAPI_FUNC(PyObject *) PyCFunction_Call(PyObject *, PyObject *, PyObject *);
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struct PyMethodDef {
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    char	*ml_name;	/* The name of the built-in function/method */
    PyCFunction  ml_meth;	/* The C function that implements it */
    int		 ml_flags;	/* Combination of METH_xxx flags, which mostly
				   describe the args expected by the C func */
    char	*ml_doc;	/* The __doc__ attribute, or NULL */
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};
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typedef struct PyMethodDef PyMethodDef;
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PyAPI_FUNC(PyObject *) Py_FindMethod(PyMethodDef[], PyObject *, char *);
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#define PyCFunction_New(ML, SELF) PyCFunction_NewEx((ML), (SELF), NULL)
PyAPI_FUNC(PyObject *) PyCFunction_NewEx(PyMethodDef *, PyObject *, 
					 PyObject *);
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/* Flag passed to newmethodobject */
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#define METH_OLDARGS  0x0000
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#define METH_VARARGS  0x0001
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#define METH_KEYWORDS 0x0002
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/* METH_NOARGS and METH_O must not be combined with the flags above. */
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#define METH_NOARGS   0x0004
#define METH_O        0x0008
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/* METH_CLASS and METH_STATIC are a little different; these control
   the construction of methods for a class.  These cannot be used for
   functions in modules. */
#define METH_CLASS    0x0010
#define METH_STATIC   0x0020

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/* METH_COEXIST allows a method to be entered eventhough a slot has
   already filled the entry.  When defined, the flag allows a separate
   method, "__contains__" for example, to coexist with a defined 
   slot like sq_contains. */

#define METH_COEXIST   0x0040

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typedef struct PyMethodChain {
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    PyMethodDef *methods;		/* Methods of this type */
    struct PyMethodChain *link;	/* NULL or base type */
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} PyMethodChain;

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PyAPI_FUNC(PyObject *) Py_FindMethodInChain(PyMethodChain *, PyObject *,
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                                                  char *);
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typedef struct {
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    PyObject_HEAD
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    PyMethodDef *m_ml; /* Description of the C function to call */
    PyObject    *m_self; /* Passed as 'self' arg to the C func, can be NULL */
    PyObject    *m_module; /* The __module__ attribute, can be anything */
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} PyCFunctionObject;

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#ifdef __cplusplus
}
#endif
#endif /* !Py_METHODOBJECT_H */