|
0
|
1 /*
|
|
|
2 * Copyright 2000-2007 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.oops;
|
|
|
26
|
|
|
27 import java.io.*;
|
|
|
28 import java.util.*;
|
|
|
29 import sun.jvm.hotspot.debugger.*;
|
|
|
30 import sun.jvm.hotspot.runtime.*;
|
|
|
31 import sun.jvm.hotspot.types.*;
|
|
|
32 import sun.jvm.hotspot.utilities.*;
|
|
|
33
|
|
|
34 // TypeArrayKlass is a proxy for typeArrayKlass in the JVM
|
|
|
35
|
|
|
36 public class TypeArrayKlass extends ArrayKlass {
|
|
|
37 static {
|
|
|
38 VM.registerVMInitializedObserver(new Observer() {
|
|
|
39 public void update(Observable o, Object data) {
|
|
|
40 initialize(VM.getVM().getTypeDataBase());
|
|
|
41 }
|
|
|
42 });
|
|
|
43 }
|
|
|
44
|
|
|
45 private static synchronized void initialize(TypeDataBase db) throws WrongTypeException {
|
|
|
46 Type t = db.lookupType("typeArrayKlass");
|
|
|
47 maxLength = new CIntField(t.getCIntegerField("_max_length"), Oop.getHeaderSize());
|
|
|
48 }
|
|
|
49
|
|
|
50 TypeArrayKlass(OopHandle handle, ObjectHeap heap) {
|
|
|
51 super(handle, heap);
|
|
|
52 }
|
|
|
53
|
|
|
54 private static CIntField maxLength;
|
|
|
55
|
|
|
56 public long getMaxLength() { return maxLength.getValue(this); }
|
|
|
57
|
|
|
58 public static final int T_BOOLEAN = 4;
|
|
|
59 public static final int T_CHAR = 5;
|
|
|
60 public static final int T_FLOAT = 6;
|
|
|
61 public static final int T_DOUBLE = 7;
|
|
|
62 public static final int T_BYTE = 8;
|
|
|
63 public static final int T_SHORT = 9;
|
|
|
64 public static final int T_INT = 10;
|
|
|
65 public static final int T_LONG = 11;
|
|
|
66
|
|
|
67 public String getTypeName() {
|
|
|
68 switch ((int) getElementType()) {
|
|
|
69 case T_BOOLEAN: return "[Z";
|
|
|
70 case T_CHAR: return "[C";
|
|
|
71 case T_FLOAT: return "[F";
|
|
|
72 case T_DOUBLE: return "[D";
|
|
|
73 case T_BYTE: return "[B";
|
|
|
74 case T_SHORT: return "[S";
|
|
|
75 case T_INT: return "[I";
|
|
|
76 case T_LONG: return "[J";
|
|
|
77 }
|
|
|
78 return "Unknown TypeArray";
|
|
|
79 }
|
|
|
80
|
|
|
81 public String getElementTypeName() {
|
|
|
82 switch ((int) getElementType()) {
|
|
|
83 case T_BOOLEAN: return "boolean";
|
|
|
84 case T_CHAR: return "char";
|
|
|
85 case T_FLOAT: return "float";
|
|
|
86 case T_DOUBLE: return "double";
|
|
|
87 case T_BYTE: return "byte";
|
|
|
88 case T_SHORT: return "short";
|
|
|
89 case T_INT: return "int";
|
|
|
90 case T_LONG: return "long";
|
|
|
91 }
|
|
|
92 throw new RuntimeException("should not reach here");
|
|
|
93 }
|
|
|
94
|
|
|
95 public void printValueOn(PrintStream tty) {
|
|
|
96 tty.print("TypeArrayKlass for " + getTypeName());
|
|
|
97 }
|
|
|
98
|
|
|
99 public void iterateFields(OopVisitor visitor, boolean doVMFields) {
|
|
|
100 super.iterateFields(visitor, doVMFields);
|
|
|
101 if (doVMFields) {
|
|
|
102 visitor.doCInt(maxLength, true);
|
|
|
103 }
|
|
|
104 }
|
|
|
105
|
|
|
106 public Klass arrayKlassImpl(boolean orNull, int n) {
|
|
|
107 int dimension = (int) getDimension();
|
|
|
108 if (Assert.ASSERTS_ENABLED) {
|
|
|
109 Assert.that(dimension <= n, "check order of chain");
|
|
|
110 }
|
|
|
111 if (dimension == n)
|
|
|
112 return this;
|
|
|
113 ObjArrayKlass ak = (ObjArrayKlass) getHigherDimension();
|
|
|
114 if (ak == null) {
|
|
|
115 if (orNull) return null;
|
|
|
116 // FIXME: would need to change in reflective system to actually
|
|
|
117 // allocate klass
|
|
|
118 throw new RuntimeException("Can not allocate array klasses in debugging system");
|
|
|
119 }
|
|
|
120 if (orNull) {
|
|
|
121 return ak.arrayKlassOrNull(n);
|
|
|
122 }
|
|
|
123 return ak.arrayKlass(n);
|
|
|
124 }
|
|
|
125
|
|
|
126 public Klass arrayKlassImpl(boolean orNull) {
|
|
|
127 return arrayKlassImpl(orNull, (int) (getDimension() + 1));
|
|
|
128 }
|
|
|
129 }
|
