view Include/methodobject.h @ 17405:afbb65b60fa2 2.0

Inspired by Tim Peters' 1.14->1.15 checkin to asynchat Quoting orignal message: ''' Fix from the Madusa mailing list: http://groups.yahoo.com/group/medusa/message/333 It's clear that Medusa should not be checking for an empty buffer via "buf is ''". The patch merely changes "is" to "==". However, there's a mystery here all the same: Python attempts to store null strings uniquely, so it's unclear why "buf is ''" ever returned false when buf actually was empty. *Some* string operations produce non-unique null strings, e.g. '''
author Moshe Zadka <moshez@math.huji.ac.il>
date Wed, 11 Apr 2001 08:06:02 +0000
parents 6f6f965c5e2d
children 3c1c9948ff65
line wrap: on
line source


/* Method object interface */

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

extern DL_IMPORT(PyTypeObject) PyCFunction_Type;

#define PyCFunction_Check(op) ((op)->ob_type == &PyCFunction_Type)

typedef PyObject *(*PyCFunction)(PyObject *, PyObject *);
typedef PyObject *(*PyCFunctionWithKeywords)(PyObject *, PyObject *,
					     PyObject *);

extern DL_IMPORT(PyCFunction) PyCFunction_GetFunction(PyObject *);
extern DL_IMPORT(PyObject *) PyCFunction_GetSelf(PyObject *);
extern DL_IMPORT(int) PyCFunction_GetFlags(PyObject *);

/* 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)

struct PyMethodDef {
    char	*ml_name;
    PyCFunction  ml_meth;
    int		 ml_flags;
    char	*ml_doc;
};
typedef struct PyMethodDef PyMethodDef;

extern DL_IMPORT(PyObject *) Py_FindMethod(PyMethodDef[], PyObject *, char *);

extern DL_IMPORT(PyObject *) PyCFunction_New(PyMethodDef *, PyObject *);

/* Flag passed to newmethodobject */
#define METH_OLDARGS  0x0000
#define METH_VARARGS  0x0001
#define METH_KEYWORDS 0x0002

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

extern DL_IMPORT(PyObject *) Py_FindMethodInChain(PyMethodChain *, PyObject *,
                                                  char *);

typedef struct {
    PyObject_HEAD
    PyMethodDef *m_ml;
    PyObject    *m_self;
} PyCFunctionObject;

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