1 /*
   2  * Copyright (c) 1999, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.  Oracle designates this
   8  * particular file as subject to the "Classpath" exception as provided
   9  * by Oracle in the LICENSE file that accompanied this code.
  10  *
  11  * This code is distributed in the hope that it will be useful, but WITHOUT
  12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  14  * version 2 for more details (a copy is included in the LICENSE file that
  15  * accompanied this code).
  16  *
  17  * You should have received a copy of the GNU General Public License version
  18  * 2 along with this work; if not, write to the Free Software Foundation,
  19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  20  *
  21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  22  * or visit www.oracle.com if you need additional information or have any
  23  * questions.
  24  */
  25 /*
  26  * COMPONENT_NAME: idl.parser
  27  *
  28  * ORIGINS: 27
  29  *
  30  * Licensed Materials - Property of IBM
  31  * 5639-D57 (C) COPYRIGHT International Business Machines Corp. 1997, 1999
  32  * RMI-IIOP v1.0
  33  *
  34  */
  35 
  36 package com.sun.tools.corba.se.idl.constExpr;
  37 
  38 // NOTES:
  39 
  40 import com.sun.tools.corba.se.idl.Util;
  41 import java.math.BigInteger;
  42 
  43 public class Minus extends BinaryExpr
  44 {
  45   protected Minus (Expression leftOperand, Expression rightOperand)
  46   {
  47     super ("-", leftOperand, rightOperand);
  48   } // ctor
  49 
  50   public Object evaluate () throws EvaluationException
  51   {
  52     try
  53     {
  54       Number l = (Number)left ().evaluate ();
  55       Number r = (Number)right ().evaluate ();
  56 
  57       boolean lIsNonInteger = l instanceof Float || l instanceof Double;
  58       boolean rIsNonInteger = r instanceof Float || r instanceof Double;
  59 
  60       if (lIsNonInteger && rIsNonInteger)
  61         value (new Double (l.doubleValue () - r.doubleValue ()));
  62       else if (lIsNonInteger || rIsNonInteger)
  63       {
  64         String[] parameters = {Util.getMessage ("EvaluationException.minus"), left ().value ().getClass ().getName (), right ().value ().getClass ().getName ()};
  65         throw new EvaluationException (Util.getMessage ("EvaluationException.1", parameters));
  66       }
  67       else
  68       {
  69         // Subtraction (-)
  70         BigInteger tmpL = (BigInteger)l,  tmpR = (BigInteger)r;
  71         value (tmpL.subtract (tmpR));
  72         //daz        value (new Long (l.longValue () - r.longValue ()));
  73       }
  74     }
  75     catch (ClassCastException e)
  76     {
  77       String[] parameters = {Util.getMessage ("EvaluationException.minus"), left ().value ().getClass ().getName (), right ().value ().getClass ().getName ()};
  78       throw new EvaluationException (Util.getMessage ("EvaluationException.1", parameters));
  79     }
  80     return value ();
  81   } // evaluate
  82 } // class Minus