Thu, 31 Aug 2017 18:10:36 +0800
merge
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 */
36 package com.sun.tools.corba.se.idl.constExpr;
38 // NOTES:
40 import com.sun.tools.corba.se.idl.Util;
41 import java.math.BigInteger;
43 public class BooleanNot extends UnaryExpr
44 {
45 protected BooleanNot (Expression operand)
46 {
47 super ("!", operand);
48 } // ctor
50 public Object evaluate () throws EvaluationException
51 {
52 try
53 {
54 Object tmp = operand ().evaluate ();
55 Boolean op;
56 //daz if (tmp instanceof Number)
57 // op = new Boolean (((Number)tmp).longValue () != 0);
58 // else
59 // op = (Boolean)tmp;
60 if (tmp instanceof Number)
61 {
62 if (tmp instanceof BigInteger)
63 op = new Boolean (((BigInteger)tmp).compareTo (zero) != 0);
64 else
65 op = new Boolean (((Number)tmp).longValue () != 0);
66 }
67 else
68 op = (Boolean)tmp;
70 value (new Boolean (!op.booleanValue ()));
71 }
72 catch (ClassCastException e)
73 {
74 String[] parameters = {Util.getMessage ("EvaluationException.booleanNot"), operand ().value ().getClass ().getName ()};
75 throw new EvaluationException (Util.getMessage ("EvaluationException.2", parameters));
76 }
77 return value ();
78 } // evaluate
79 } // class BooleanNot