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 Not extends UnaryExpr
  44 {
  45   protected Not (Expression operand)
  46   {
  47     super ("~", operand);
  48   } // ctor
  49 
  50   public Object evaluate () throws EvaluationException
  51   {
  52     try
  53     {
  54       Number op = (Number)operand ().evaluate ();
  55 
  56       if (op instanceof Float || op instanceof Double)
  57       {
  58         String[] parameters = {Util.getMessage ("EvaluationException.not"), operand ().value ().getClass ().getName ()};
  59         throw new EvaluationException (Util.getMessage ("EvaluationException.2", parameters));
  60       }
  61       else
  62       {
  63         // Complement (~)
  64         //daz        value (new Long (~op.longValue ()));
  65         BigInteger b = (BigInteger)coerceToTarget((BigInteger)op);
  66 
  67         // Compute according to CORBA 2.1 specifications for specified type.
  68         if (type ().equals ("short") || type ().equals ("long") || type ().equals ("long long"))
  69           value (b.add (one).multiply (negOne));
  70         else if (type ().equals("unsigned short"))
  71           // "short" not CORBA compliant, but necessary for logical operations--size matters!
  72           value (twoPow16.subtract (one).subtract (b));
  73         else if (type ().equals ("unsigned long"))
  74           value (twoPow32.subtract (one).subtract (b));
  75         else if (type ().equals ("unsigned long long"))
  76           value (twoPow64.subtract (one).subtract (b));
  77         else
  78           value (b.not ());  // Should never execute...
  79       }
  80     }
  81     catch (ClassCastException e)
  82     {
  83       String[] parameters = {Util.getMessage ("EvaluationException.not"), operand ().value ().getClass ().getName ()};
  84       throw new EvaluationException (Util.getMessage ("EvaluationException.2", parameters));
  85     }
  86     return value ();
  87   } // evaluate
  88 } // class Not