/*
* Copyright (c) 1999, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Oracle designates this
* particular file as subject to the "Classpath" exception as provided
* by Oracle in the LICENSE file that accompanied this code.
*
* This code 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
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
/*
* COMPONENT_NAME: idl.parser
*
* ORIGINS: 27
*
* Licensed Materials - Property of IBM
* 5639-D57 (C) COPYRIGHT International Business Machines Corp. 1997, 1999
* RMI-IIOP v1.0
*
*/
package com.sun.tools.corba.se.idl.constExpr;
// NOTES:
import com.sun.tools.corba.se.idl.Util;
import java.math.BigInteger;
public class ShiftLeft extends BinaryExpr
{
protected ShiftLeft (Expression leftOperand, Expression rightOperand)
{
super ("<<", leftOperand, rightOperand);
} // ctor
public Object evaluate () throws EvaluationException
{
try
{
Number l = (Number)left ().evaluate ();
Number r = (Number)right ().evaluate ();
if (l instanceof Float || l instanceof Double || r instanceof Float || r instanceof Double)
{
String[] parameters = {Util.getMessage ("EvaluationException.left"), left ().value ().getClass ().getName (), right ().value ().getClass ().getName ()};
throw new EvaluationException (Util.getMessage ("EvaluationException.1", parameters));
}
else
{
// Shift left (<<)
//daz value (new Long (l.longValue () << r.longValue ()));
BigInteger bL = (BigInteger)coerceToTarget (l);
BigInteger bR = (BigInteger)r;
BigInteger ls = bL.shiftLeft (bR.intValue ());
if (type ().indexOf ("short") >= 0)
ls = ls.mod (twoPow16);
else if (type ().indexOf ("long") >= 0)
ls = ls.mod (twoPow32);
else if (type ().indexOf ("long long") >= 0)
ls = ls.mod (twoPow64);
value (coerceToTarget (ls));
}
}
catch (ClassCastException e)
{
String[] parameters = {Util.getMessage ("EvaluationException.left"), left ().value ().getClass ().getName (), right ().value ().getClass ().getName ()};
throw new EvaluationException (Util.getMessage ("EvaluationException.1", parameters));
}
return value ();
} // evaluate
} // class ShiftLeft