object.h

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/***********************************************************************
    Copyright (C) 2005,2006 Frédéric HENRY <neryel@reveries.info>

    This file is part of ASpiReNN.

    ASpiReNN 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 2 of the License,
    or (at your option) any later version.

    ASpiReNN 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 ASpiReNN; if not, write to the Free Software
    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
    02111-1307  USA.

***********************************************************************/

#ifndef _OBJECT_H_
#define _OBJECT_H_

#include <stdlib.h>

struct _aspi_object;

typedef struct _aspi_class
{
  int id;
  struct _aspi_class * parent;
  int size;
  void (* dtor) (struct _aspi_object * object);
  struct _aspi_object * (* dup) (struct _aspi_object * object);
} aspi_class_t;


typedef struct _aspi_object {
  aspi_class_t * klass;
  int reference_count;
} aspi_object_t;

/* Methods who must be redefined for every class */
aspi_object_t * aspi_object_init (aspi_object_t * object);
aspi_class_t * aspi_object (void);
void aspi_object_dtor (aspi_object_t * object);
aspi_object_t * aspi_object_dup (aspi_object_t * object);

/* Methods of object */
void aspi_object_retain (aspi_object_t * object);
void aspi_object_release (aspi_object_t * object);
void aspi_object_free (aspi_object_t * object); 
aspi_object_t * aspi_object_copy (aspi_object_t * object);
int aspi_object_is_a (void * object, aspi_class_t * klass);
int aspi_class_is_a (void * klass1, aspi_class_t * klass2);
void aspi_object_check (void * object, aspi_class_t * klass);
void aspi_class_check (void * klass1, aspi_class_t * klass2);

/* Methods for inheriting classes */
void aspi_class_register (aspi_class_t * klass, aspi_class_t * parent, int size, void (* dtor) (aspi_object_t * object));
aspi_object_t * aspi_class_instantiate (aspi_class_t * klass);


/* Cast an object to aspi_object */
#define ASPI_OBJECT(x) (aspi_object_check (x, aspi_object ()), ((aspi_object_t *) x))
#define ASPI_CLASS(x) (aspi_class_check (x, aspi_object ()), ((aspi_class_t * ) x))
  /*#define aspi_object(x) aspi_object_get_class (x)*/

#endif /* _OBJECT_H_ */

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