/*
* 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 SoftwareFoundation, Inc.
* 59 Temple Place, Suite 330
* Boston, MA 02111-1307 USA
*
* @author Scott Ferguson
*/
package com.caucho.es;
/**
* Implementation class for JavaScript booleans.
*/
public class ESBoolean extends ESBase {
public final static ESBoolean TRUE = new ESBoolean(true);
public final static ESBoolean FALSE = new ESBoolean(false);
boolean value;
public ESBase typeof() throws ESException
{
return ESString.create("boolean");
}
public Class getJavaType()
{
return boolean.class;
}
public boolean isBoolean()
{
return true;
}
public boolean toBoolean()
{
return value;
}
public double toNum()
{
return value ? 1.0 : 0.0 ;
}
public ESBase getProperty(ESString key) throws Throwable
{
return Global.getGlobalProto().boolProto.getProperty(key);
}
/**
* Returns this as a string.
*/
public ESString toStr()
{
return ESString.create(value ? "true" : "false");
}
public ESObject toObject() throws ESException
{
return new ESWrapper("Boolean", Global.getGlobalProto().boolProto, this);
}
public Object toJavaObject()
{
return new Boolean(value);
}
public boolean ecmaEquals(ESBase b) throws Throwable
{
if (b == esNull || b == esEmpty || b == esUndefined)
return false;
else
return toNum() == b.toNum();
}
/**
* Returns the proper boolean
*/
public static ESBoolean create(boolean value)
{
return value ? TRUE : FALSE;
}
/**
* Create a new object based on a prototype
*/
private ESBoolean(boolean value)
{
super(null);
this.value = value;
}
}