/*
* Copyright (c) 1998-2011 Caucho Technology -- all rights reserved
*
* This file is part of Resin(R) Open Source
*
* Each copy or derived work must preserve the copyright notice and this
* notice unmodified.
*
* Resin Open Source 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.
*
* Resin Open Source 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, or any warranty
* of NON-INFRINGEMENT. See the GNU General Public License for more
* details.
*
* You should have received a copy of the GNU General Public License
* along with Resin Open Source; if not, write to the
*
* Free Software Foundation, Inc.
* 59 Temple Place, Suite 330
* Boston, MA 02111-1307 USA
*
* @author Scott Ferguson
*/
package com.caucho.quercus.env;
import com.caucho.quercus.marshal.Marshal;
import com.caucho.vfs.WriteStream;
import java.io.IOException;
import java.io.PrintWriter;
import java.util.IdentityHashMap;
/**
* Represents a PHP long value.
*/
@SuppressWarnings("serial")
public class LongCacheValue extends LongValue
{
private transient LongValue _prev;
private transient final LongValue _next;
public LongCacheValue(long value, LongValue next)
{
super(value);
_next = next;
}
void setPrev(LongValue prev)
{
_prev = prev;
}
/**
* Returns the next integer
*/
@Override
public Value addOne()
{
return _next;
}
/**
* Returns the previous integer
*/
@Override
public Value subOne()
{
return _prev;
}
/**
* Pre-increment the following value.
*/
@Override
public Value preincr()
{
return _next;
}
/**
* Pre-increment the following value.
*/
@Override
public Value predecr()
{
return _prev;
}
/**
* Post-increment the following value.
*/
@Override
public Value postincr()
{
return _next;
}
/**
* Post-decrement the following value.
*/
@Override
public Value postdecr()
{
return _prev;
}
/**
* serialization override
*/
private Object writeReplace()
{
return new LongValue(toLong());
}
}