01: /*
02: * Copyright 1998-2006 Sun Microsystems, Inc. All Rights Reserved.
03: * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
04: *
05: * This code is free software; you can redistribute it and/or modify it
06: * under the terms of the GNU General Public License version 2 only, as
07: * published by the Free Software Foundation. Sun designates this
08: * particular file as subject to the "Classpath" exception as provided
09: * by Sun 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
22: * CA 95054 USA or visit www.sun.com if you need additional information or
23: * have any questions.
24: */
25:
26: package com.sun.tools.jdi;
27:
28: import com.sun.jdi.*;
29:
30: public class VoidValueImpl extends ValueImpl implements VoidValue {
31:
32: VoidValueImpl(VirtualMachine aVm) {
33: super (aVm);
34: }
35:
36: public boolean equals(Object obj) {
37: return (obj != null) && (obj instanceof VoidValue)
38: && super .equals(obj);
39: }
40:
41: public int hashCode() {
42: /*
43: * TO DO: Better hash code
44: */
45: return 47245;
46: }
47:
48: public Type type() {
49: return vm.theVoidType();
50: }
51:
52: ValueImpl prepareForAssignmentTo(ValueContainer destination)
53: throws InvalidTypeException {
54: if ("void".equals(destination.typeName())) {
55: return this ;
56: }
57: throw new InvalidTypeException();
58: }
59:
60: public String toString() {
61: return "<void value>";
62: }
63:
64: byte typeValueKey() {
65: return JDWP.Tag.VOID;
66: }
67: }
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