Equal.java revision 608:7e06bf1dcb09 
168349Sobrien/*
268349Sobrien * Copyright (c) 1999, Oracle and/or its affiliates. All rights reserved.
3284193Sdelphij * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
468349Sobrien *
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868349Sobrien * particular file as subject to the "Classpath" exception as provided
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1068349Sobrien *
1168349Sobrien * This code is distributed in the hope that it will be useful, but WITHOUT
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1668349Sobrien *
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2568349Sobrien/*
2668349Sobrien * COMPONENT_NAME: idl.parser
27267843Sdelphij *
28267843Sdelphij * ORIGINS: 27
29267843Sdelphij *
30267843Sdelphij * Licensed Materials - Property of IBM
31 * 5639-D57 (C) COPYRIGHT International Business Machines Corp. 1997, 1999
32 * RMI-IIOP v1.0
33 *
34 */
35
36package com.sun.tools.corba.se.idl.constExpr;
37
38// NOTES:
39
40import com.sun.tools.corba.se.idl.Util;
41import java.math.BigInteger;
42
43public class Equal extends BinaryExpr
44{
45  protected Equal (Expression leftOperand, Expression rightOperand)
46  {
47    super ("==", leftOperand, rightOperand);
48  } // ctor
49
50  public Object evaluate () throws EvaluationException
51  {
52    try
53    {
54      Object left = left ().evaluate ();
55      if (left instanceof Boolean)
56      {
57        Boolean l = (Boolean)left;
58        Boolean r = (Boolean)right ().evaluate ();
59        value (new Boolean (l.booleanValue () == r.booleanValue()));
60      }
61      else
62      {
63        Number l = (Number)left;
64        Number r = (Number)right ().evaluate ();
65        if (l instanceof Float || l instanceof Double || r instanceof Float || r instanceof Double)
66          value (new Boolean (l.doubleValue () == r.doubleValue ()));
67        else
68          //daz          value (new Boolean (l.longValue () == r.longValue ()));
69          value (new Boolean (((BigInteger)l).equals ((BigInteger)r)));
70      }
71    }
72    catch (ClassCastException e)
73    {
74      String[] parameters = {Util.getMessage ("EvaluationException.equal"), left ().value ().getClass ().getName (), right ().value ().getClass ().getName ()};
75      throw new EvaluationException (Util.getMessage ("EvaluationException.1", parameters));
76    }
77    return value ();
78  } // evaluate
79} // class Equal
80