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comparison agent/src/share/classes/sun/jvm/hotspot/jdi/FieldImpl.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 import sun.jvm.hotspot.oops.Oop;
29 import sun.jvm.hotspot.oops.Instance;
30 import sun.jvm.hotspot.oops.Array;
31 import sun.jvm.hotspot.oops.InstanceKlass;
32 import sun.jvm.hotspot.oops.Symbol;
33 import sun.jvm.hotspot.oops.FieldIdentifier;
34
35 import java.util.List;
36 import java.util.Iterator;
37 import java.util.ArrayList;
38 import java.util.Comparator;
39
40 public class FieldImpl extends TypeComponentImpl implements Field {
41 private JNITypeParser signatureParser;
42 private sun.jvm.hotspot.oops.Field saField;
43
44 FieldImpl( VirtualMachine vm, ReferenceTypeImpl declaringType,
45 sun.jvm.hotspot.oops.Field saField) {
46 super(vm, declaringType);
47 this.saField = saField;
48 getParser();
49 }
50
51 private void getParser() {
52 if (signatureParser == null) {
53 Symbol sig1 = saField.getSignature();
54 signature = sig1.asString();
55 signatureParser = new JNITypeParser(signature);
56 }
57 }
58
59 sun.jvm.hotspot.oops.Field ref() {
60 return saField;
61 }
62
63 // get the value of static field
64 ValueImpl getValue() {
65 return getValue(saField.getFieldHolder());
66 }
67
68 // get the value of this Field from a specific Oop
69 ValueImpl getValue(Oop target) {
70 ValueImpl valueImpl;
71 sun.jvm.hotspot.oops.Field saField = (sun.jvm.hotspot.oops.Field) ref();
72 sun.jvm.hotspot.oops.FieldType ft = saField.getFieldType();
73 if (ft.isArray()) {
74 sun.jvm.hotspot.oops.OopField of = (sun.jvm.hotspot.oops.OopField)saField;
75 valueImpl = (ArrayReferenceImpl) vm.arrayMirror((Array)of.getValue(target));
76 } else if (ft.isObject()) {
77 sun.jvm.hotspot.oops.OopField of = (sun.jvm.hotspot.oops.OopField)saField;
78 valueImpl = (ObjectReferenceImpl) vm.objectMirror(of.getValue(target));
79 } else if (ft.isByte()) {
80 sun.jvm.hotspot.oops.ByteField bf = (sun.jvm.hotspot.oops.ByteField)saField;
81 valueImpl = (ByteValueImpl) vm.mirrorOf(bf.getValue(target));
82 } else if (ft.isChar()) {
83 sun.jvm.hotspot.oops.CharField cf = (sun.jvm.hotspot.oops.CharField)saField;
84 valueImpl = (CharValueImpl) vm.mirrorOf(cf.getValue(target));
85 } else if (ft.isDouble()) {
86 sun.jvm.hotspot.oops.DoubleField df = (sun.jvm.hotspot.oops.DoubleField)saField;
87 valueImpl = (DoubleValueImpl) vm.mirrorOf(df.getValue(target));
88 } else if (ft.isFloat()) {
89 sun.jvm.hotspot.oops.FloatField ff = (sun.jvm.hotspot.oops.FloatField)saField;
90 valueImpl = (FloatValueImpl) vm.mirrorOf(ff.getValue(target));
91 } else if (ft.isInt()) {
92 sun.jvm.hotspot.oops.IntField iif = (sun.jvm.hotspot.oops.IntField)saField;
93 valueImpl = (IntegerValueImpl) vm.mirrorOf(iif.getValue(target));
94 } else if (ft.isLong()) {
95 sun.jvm.hotspot.oops.LongField lf = (sun.jvm.hotspot.oops.LongField)saField;
96 valueImpl = (LongValueImpl) vm.mirrorOf(lf.getValue(target));
97 } else if (ft.isShort()) {
98 sun.jvm.hotspot.oops.ShortField sf = (sun.jvm.hotspot.oops.ShortField)saField;
99 valueImpl = (ShortValueImpl) vm.mirrorOf(sf.getValue(target));
100 } else if (ft.isBoolean()) {
101 sun.jvm.hotspot.oops.BooleanField bf = (sun.jvm.hotspot.oops.BooleanField)saField;
102 valueImpl = (BooleanValueImpl) vm.mirrorOf(bf.getValue(target));
103 } else {
104 throw new RuntimeException("Should not reach here");
105 }
106 return valueImpl;
107 }
108
109 public boolean equals(Object obj) {
110 if ((obj != null) && (obj instanceof FieldImpl)) {
111 FieldImpl other = (FieldImpl)obj;
112 return (declaringType().equals(other.declaringType())) &&
113 (ref().equals(other.ref())) &&
114 super.equals(obj);
115 } else {
116 return false;
117 }
118 }
119
120 public boolean isTransient() {
121 return saField.isTransient();
122 }
123
124 public boolean isVolatile() {
125 return saField.isVolatile();
126 }
127
128 public boolean isEnumConstant() {
129 return saField.isEnumConstant();
130 }
131
132 public Type type() throws ClassNotLoadedException {
133 // So, we do it just like JDI does by searching the enclosing type.
134 return findType(signature());
135 }
136
137 public String typeName() { //fixme jjh: jpda version creates redundant JNITypeParsers
138 getParser();
139 return signatureParser.typeName();
140 }
141
142 public String genericSignature() {
143 Symbol genSig = saField.getGenericSignature();
144 return (genSig != null)? genSig.asString() : null;
145 }
146
147 // From interface Comparable
148 public int compareTo(Object object) {
149 Field field = (Field)object;
150 ReferenceTypeImpl declaringType = (ReferenceTypeImpl)declaringType();
151 int rc = declaringType.compareTo(field.declaringType());
152 if (rc == 0) {
153 rc = declaringType.indexOf(this) -
154 declaringType.indexOf(field);
155 }
156 return rc;
157 }
158
159 // from interface Mirror
160 public String toString() {
161 StringBuffer buf = new StringBuffer();
162
163 buf.append(declaringType().name());
164 buf.append('.');
165 buf.append(name());
166 return buf.toString();
167 }
168
169 public String name() {
170 FieldIdentifier myName = saField.getID();
171 return myName.getName();
172 }
173
174 // From interface Accessible
175 public int modifiers() {
176 return saField.getAccessFlagsObj().getStandardFlags();
177 }
178
179 public boolean isPackagePrivate() {
180 return saField.isPackagePrivate();
181 }
182
183 public boolean isPrivate() {
184 return saField.isPrivate();
185 }
186
187 public boolean isProtected() {
188 return saField.isProtected();
189 }
190
191 public boolean isPublic() {
192 return saField.isPublic();
193 }
194
195 public boolean isStatic() {
196 return saField.isStatic();
197 }
198
199 public boolean isFinal() {
200 return saField.isFinal();
201 }
202
203 public boolean isSynthetic() {
204 return saField.isSynthetic();
205 }
206
207 public int hashCode() {
208 return saField.hashCode();
209 }
210
211
212 private Type findType(String signature) throws ClassNotLoadedException {
213 ReferenceTypeImpl enclosing = (ReferenceTypeImpl)declaringType();
214 return enclosing.findType(signature);
215 }
216
217 }