class/interface/class.h

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/**
 * \file
 * Interface for class handling. Defines new, delete and clone selectors
 * which in turn use the ctor, dtor and clone implementation from the
 * class implementation.
 *
 * \author  Georg Hopp
 *
 * \copyright
 * Copyright © 2012  Georg Hopp
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

#ifndef __CLASS_INTERFACE_CLASS_H__
#define __CLASS_INTERFACE_CLASS_H__

#include <stdarg.h>

#include "class/class.h"
#include "class/interface.h"

typedef int  (* fptr_ctor)(void *, va_list *);
typedef void (* fptr_dtor)(void *);
typedef void (* fptr_clone)(void *, void * const);

extern const struct interface i_Class;

struct i_Class {
    const struct interface * const _;
    fptr_ctor                      ctor;
    fptr_dtor                      dtor;
    fptr_clone                     clone;
};

extern void * classNew(class_ptr, ...);
extern void   classDelete(void **);
extern void * classClone(void *);

#define new(class,...)      classNew(_##class, ##__VA_ARGS__)
#define delete(object)      classDelete((void **)&(object))
#define clone(object)       classClone((void *)(object))

/**
 * With this one we can create a new instance via a
 * intermidiary that gets the arguments.
 */
extern void * classNewParams(class_ptr, va_list *);
#define newParams(class,args) classNewParams(_##class, args)

#endif // __CLASS_INTERFACE_CLASS_H__

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