1 /*
2 * Copyright 2001-2002 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.bugspot;
26
27 import java.awt.*;
28 import javax.swing.*;
29 import java.util.*;
30 import sun.jvm.hotspot.debugger.*;
31 import sun.jvm.hotspot.debugger.cdbg.*;
32 import sun.jvm.hotspot.bugspot.tree.*;
33 import sun.jvm.hotspot.oops.*;
34 import sun.jvm.hotspot.runtime.*;
35 import sun.jvm.hotspot.ui.tree.*;
36 import sun.jvm.hotspot.ui.treetable.*;
37
38 /** Manages display of a set of local variables in a frame, or the
39 contents of the "this" pointer */
40
41 public class VariablePanel extends JPanel {
42 private JTreeTable treeTable;
43 private SimpleTreeTableModel model;
44 private SimpleTreeGroupNode root;
45
46 public VariablePanel() {
47 super();
48
49 model = new SimpleTreeTableModel();
50 model.setValuesEditable(false);
51 root = new SimpleTreeGroupNode();
52 model.setRoot(root);
53 treeTable = new JTreeTable(model);
54 treeTable.setRootVisible(false);
55 treeTable.setShowsRootHandles(true);
56 treeTable.setShowsIcons(false);
57 treeTable.setTreeEditable(false);
58 treeTable.getTableHeader().setReorderingAllowed(false);
59 treeTable.setCellSelectionEnabled(true);
60 treeTable.setSelectionMode(ListSelectionModel.SINGLE_INTERVAL_SELECTION);
61 treeTable.setDragEnabled(true);
62 JScrollPane sp = new JScrollPane(treeTable);
63 sp.getViewport().setBackground(Color.white);
64
65 setLayout(new BorderLayout());
66 add(sp, BorderLayout.CENTER);
67 }
68
69 /** Clear the contents of this VariablePanel */
70 public void clear() {
71 root.removeAllChildren();
72 model.fireTreeStructureChanged();
73 }
74
75 /** Update the contents of this VariablePanel from the given CFrame */
76 public void update(CFrame fr) {
77 // Collect locals
78 CCollector coll = new CCollector();
79 fr.iterateLocals(coll);
80 update(coll);
81 }
82
83 /** Update the contents of this VariablePanel from the given JavaVFrame */
84 public void update(JavaVFrame jfr) {
85 Method m = jfr.getMethod();
86 if (!m.hasLocalVariableTable()) {
87 return;
88 }
89 int bci = jfr.getBCI();
90 // Get local variable table
91 LocalVariableTableElement[] locals = m.getLocalVariableTable();
92 // Get locals as StackValueCollection
93 StackValueCollection coll = jfr.getLocals();
94 root.removeAllChildren();
95 // See which locals are live
96 for (int i = 0; i < locals.length; i++) {
97 LocalVariableTableElement local = locals[i];
98 if (local.getStartBCI() <= bci && bci < local.getStartBCI() + local.getLength()) {
99 // Valid; add it
100 SimpleTreeNode node = null;
101 Symbol name = null;
102 try {
103 name = m.getConstants().getSymbolAt(local.getNameCPIndex());
104 if (name == null) {
105 System.err.println("Null name at slot " +
106 local.getNameCPIndex() +
107 " for local variable at slot " +
108 local.getSlot());
109 continue;
110 }
111 } catch (Exception e) {
112 System.err.println("Unable to fetch name at slot " +
113 local.getNameCPIndex() +
114 " for local variable at slot " +
115 local.getSlot());
116 e.printStackTrace();
117 continue;
118 }
119 sun.jvm.hotspot.oops.NamedFieldIdentifier f =
120 new sun.jvm.hotspot.oops.NamedFieldIdentifier(name.asString());
121 Symbol descriptor = null;
122 try {
123 descriptor = m.getConstants().getSymbolAt(local.getDescriptorCPIndex());
124 } catch (Exception e) {
125 System.err.println("Unable to fetch descriptor at slot " +
126 local.getDescriptorCPIndex() +
127 " for local variable " + f.getName() +
128 " at slot " + local.getSlot());
129 e.printStackTrace();
130 continue;
131 }
132
133 if (descriptor != null) {
134 switch (descriptor.getByteAt(0)) {
135 case 'F': {
136 node = new sun.jvm.hotspot.ui.tree.FloatTreeNodeAdapter(coll.floatAt(local.getSlot()), f, true);
137 break;
138 }
139 case 'D': {
140 node = new sun.jvm.hotspot.ui.tree.DoubleTreeNodeAdapter(coll.doubleAt(local.getSlot()), f, true);
141 break;
142 }
143 case 'C': {
144 node = new sun.jvm.hotspot.ui.tree.CharTreeNodeAdapter((char) coll.intAt(local.getSlot()), f, true);
145 break;
146 }
147 case 'B':
148 case 'S':
149 case 'I': {
150 node = new sun.jvm.hotspot.ui.tree.LongTreeNodeAdapter(coll.intAt(local.getSlot()), f, true);
151 break;
152 }
153 case 'Z': {
154 node = new sun.jvm.hotspot.ui.tree.BooleanTreeNodeAdapter(
155 ((coll.intAt(local.getSlot()) != 0) ? true : false), f, true
156 );
157 break;
158 }
159 case 'J': {
160 node = new sun.jvm.hotspot.ui.tree.LongTreeNodeAdapter(coll.longAt(local.getSlot()), f, true);
161 break;
162 }
163 default: {
164 try {
165 node = new sun.jvm.hotspot.ui.tree.OopTreeNodeAdapter(
166 VM.getVM().getObjectHeap().newOop(coll.oopHandleAt(local.getSlot())), f, true
167 );
168 } catch (AddressException e) {
169 node = new sun.jvm.hotspot.ui.tree.FieldTreeNodeAdapter(f, true) {
170 public int getChildCount() { return 0; }
171 public SimpleTreeNode getChild(int i) { return null; }
172 public boolean isLeaf() { return false; }
173 public int getIndexOfChild(SimpleTreeNode child) { return 0; }
174 public String getValue() {
175 return "<Bad oop>";
176 }
177 };
178 }
179 break;
180 }
181 }
182 if (node != null) {
183 root.addChild(node);
184 }
185 }
186 }
187 }
188
189 model.fireTreeStructureChanged();
190 }
191
192 /** Update the contents of this VariablePanel from the given "this"
193 pointer of the given type */
194 public void update(Address thisAddr, Type type) {
195 // Collect fields
196 CCollector coll = new CCollector();
197 type.iterateObject(thisAddr, coll);
198 update(coll);
199 }
200
201 private void update(CCollector coll) {
202 root.removeAllChildren();
203 for (int i = 0; i < coll.getNumChildren(); i++) {
204 root.addChild(coll.getChild(i));
205 }
206 model.fireTreeStructureChanged();
207 }
208
209 static class CCollector extends DefaultObjectVisitor {
210 private java.util.List children;
211
212 public CCollector() {
213 children = new ArrayList();
214 }
215
216 public int getNumChildren() {
217 return children.size();
218 }
219
220 public SimpleTreeNode getChild(int i) {
221 return (SimpleTreeNode) children.get(i);
222 }
223
224 public void doBit(sun.jvm.hotspot.debugger.cdbg.FieldIdentifier f, long val) {
225 children.add(new sun.jvm.hotspot.bugspot.tree.LongTreeNodeAdapter(val, f, true));
226 }
227 public void doInt(sun.jvm.hotspot.debugger.cdbg.FieldIdentifier f, long val) {
228 children.add(new sun.jvm.hotspot.bugspot.tree.LongTreeNodeAdapter(val, f, true));
229 }
230 public void doEnum(sun.jvm.hotspot.debugger.cdbg.FieldIdentifier f, long val, String enumName) {
231 children.add(new sun.jvm.hotspot.bugspot.tree.EnumTreeNodeAdapter(enumName, val, f, true));
232 }
233 public void doFloat(sun.jvm.hotspot.debugger.cdbg.FieldIdentifier f, float val) {
234 children.add(new sun.jvm.hotspot.bugspot.tree.FloatTreeNodeAdapter(val, f, true));
235 }
236 public void doDouble(sun.jvm.hotspot.debugger.cdbg.FieldIdentifier f, double val) {
237 children.add(new sun.jvm.hotspot.bugspot.tree.DoubleTreeNodeAdapter(val, f, true));
238 }
239 public void doPointer(sun.jvm.hotspot.debugger.cdbg.FieldIdentifier f, Address val) {
240 children.add(new sun.jvm.hotspot.bugspot.tree.AddressTreeNodeAdapter(val, f, true));
241 }
242 public void doArray(sun.jvm.hotspot.debugger.cdbg.FieldIdentifier f, Address val) {
243 children.add(new sun.jvm.hotspot.bugspot.tree.AddressTreeNodeAdapter(val, f, true));
244 }
245 public void doRef(sun.jvm.hotspot.debugger.cdbg.FieldIdentifier f, Address val) {
246 children.add(new sun.jvm.hotspot.bugspot.tree.AddressTreeNodeAdapter(val, f, true));
247 }
248 public void doCompound(sun.jvm.hotspot.debugger.cdbg.FieldIdentifier f, Address val) {
249 children.add(new sun.jvm.hotspot.bugspot.tree.ObjectTreeNodeAdapter(val, f, true));
250 }
251 }
252 }