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comparison agent/src/share/classes/sun/jvm/hotspot/jdi/PrimitiveValueImpl.java @ 0:a61af66fc99e jdk7-b24

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author duke
date Sat, 01 Dec 2007 00:00:00 +0000
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1 /*
2 * Copyright 2002-2003 Sun Microsystems, Inc. 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.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
20 * CA 95054 USA or visit www.sun.com if you need additional information or
21 * have any questions.
22 *
23 */
24
25 package sun.jvm.hotspot.jdi;
26
27 import com.sun.jdi.*;
28
29 public abstract class PrimitiveValueImpl extends ValueImpl
30 implements PrimitiveValue {
31
32 PrimitiveValueImpl(VirtualMachine aVm) {
33 super(aVm);
34 }
35
36 abstract public boolean booleanValue();
37 abstract public byte byteValue();
38 abstract public char charValue();
39 abstract public short shortValue();
40 abstract public int intValue();
41 abstract public long longValue();
42 abstract public float floatValue();
43 abstract public double doubleValue();
44
45 /*
46 * The checked versions of the value accessors throw
47 * InvalidTypeException if the required conversion is
48 * narrowing and would result in the loss of information
49 * (either magnitude or precision).
50 *
51 * Default implementations here do no checking; subclasses
52 * override as necessary to do the proper checking.
53 */
54 byte checkedByteValue() throws InvalidTypeException {
55 return byteValue();
56 }
57 char checkedCharValue() throws InvalidTypeException {
58 return charValue();
59 }
60 short checkedShortValue() throws InvalidTypeException {
61 return shortValue();
62 }
63 int checkedIntValue() throws InvalidTypeException {
64 return intValue();
65 }
66 long checkedLongValue() throws InvalidTypeException {
67 return longValue();
68 }
69 float checkedFloatValue() throws InvalidTypeException {
70 return floatValue();
71 }
72
73 final boolean checkedBooleanValue() throws InvalidTypeException {
74 /*
75 * Always disallow a conversion to boolean from any other
76 * primitive
77 */
78 if (this instanceof BooleanValue) {
79 return booleanValue();
80 } else {
81 throw new InvalidTypeException("Can't convert non-boolean value to boolean");
82 }
83 }
84
85 final double checkedDoubleValue() throws InvalidTypeException {
86 /*
87 * Can't overflow by converting to double, so this method
88 * is never overridden
89 */
90 return doubleValue();
91 }
92
93 }