/*
 * @(#) $(JCGO)/goclsp/vm/gnu/classpath/jdwp/VMFrame.java --
 * VM specific hooks implementation for JDWP Frame access.
 **
 * Project: JCGO (http://www.ivmaisoft.com/jcgo/)
 * Copyright (C) 2001-2008 Ivan Maidanski <ivmai@ivmaisoft.com>
 * All rights reserved.
 **
 * Class specification origin: GNU Classpath v0.93
 */

/*
 * This 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, or (at your option)
 * any later version.
 **
 * This software 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 (GPL) for more details.
 **
 * Linking this library statically or dynamically with other modules is
 * making a combined work based on this library. Thus, the terms and
 * conditions of the GNU General Public License cover the whole
 * combination.
 **
 * As a special exception, the copyright holders of this library give you
 * permission to link this library with independent modules to produce an
 * executable, regardless of the license terms of these independent
 * modules, and to copy and distribute the resulting executable under
 * terms of your choice, provided that you also meet, for each linked
 * independent module, the terms and conditions of the license of that
 * module. An independent module is a module which is not derived from
 * or based on this library. If you modify this library, you may extend
 * this exception to your version of the library, but you are not
 * obligated to do so. If you do not wish to do so, delete this
 * exception statement from your version.
 */

package gnu.classpath.jdwp;

import gnu.classpath.jdwp.util.Location;

public final class VMFrame
{

 public static final int SIZE = 8;

 private final Thread thread;

 private final Object obj;

 private final Location loc;

 private final long id;

 VMFrame(Object obj, Location loc, long id)
 { /* used by VM classes only */
  thread = null;
  this.obj = obj;
  this.loc = loc;
  this.id = id;
 }

 VMFrame(Thread thread, long id, Location loc, Object obj)
 { /* used by VM classes only */
  this.thread = thread;
  this.obj = obj;
  this.loc = loc;
  this.id = id;
 }

 public Location getLocation()
 {
  return loc;
 }

 public Object getValue(int slot)
 {
  return getSetValue0(obj, loc, id, 0, slot, null);
 }

 public void setValue(int slot, Object value)
 {
  getSetValue0(obj, loc, id, 1, slot, value);
 }

 /* public Value getValue(int slot, byte sig); */

 /* public void setValue(int slot, Value value); */

 public Thread getThread()
 {
  return thread;
 }

 public Object getObject()
 {
  return obj;
 }

 public long getId()
 {
  return id;
 }

 private static Object getSetValue0(Object obj, Location loc, long id,
   int set, int slot, Object value)
 {
  /* not implemented */
  return null;
 }
}
