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1 /*
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2 * Copyright 2001-2002 Sun Microsystems, Inc. All Rights Reserved.
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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4 *
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5 * This code is free software; you can redistribute it and/or modify it
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6 * under the terms of the GNU General Public License version 2 only, as
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7 * published by the Free Software Foundation.
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8 *
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9 * This code is distributed in the hope that it will be useful, but WITHOUT
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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12 * version 2 for more details (a copy is included in the LICENSE file that
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13 * accompanied this code).
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14 *
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15 * You should have received a copy of the GNU General Public License version
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16 * 2 along with this work; if not, write to the Free Software Foundation,
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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18 *
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19 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
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20 * CA 95054 USA or visit www.sun.com if you need additional information or
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21 * have any questions.
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22 *
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23 */
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24
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25 package sun.jvm.hotspot.bugspot;
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26
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27 import java.awt.*;
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28 import javax.swing.*;
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29 import java.util.*;
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30 import sun.jvm.hotspot.debugger.*;
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31 import sun.jvm.hotspot.debugger.cdbg.*;
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32 import sun.jvm.hotspot.bugspot.tree.*;
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33 import sun.jvm.hotspot.oops.*;
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34 import sun.jvm.hotspot.runtime.*;
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35 import sun.jvm.hotspot.ui.tree.*;
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36 import sun.jvm.hotspot.ui.treetable.*;
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37
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38 /** Manages display of a set of local variables in a frame, or the
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39 contents of the "this" pointer */
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40
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41 public class VariablePanel extends JPanel {
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42 private JTreeTable treeTable;
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43 private SimpleTreeTableModel model;
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44 private SimpleTreeGroupNode root;
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45
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46 public VariablePanel() {
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47 super();
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48
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49 model = new SimpleTreeTableModel();
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50 model.setValuesEditable(false);
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51 root = new SimpleTreeGroupNode();
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52 model.setRoot(root);
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53 treeTable = new JTreeTable(model);
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54 treeTable.setRootVisible(false);
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55 treeTable.setShowsRootHandles(true);
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56 treeTable.setShowsIcons(false);
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57 treeTable.setTreeEditable(false);
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58 treeTable.getTableHeader().setReorderingAllowed(false);
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59 treeTable.setCellSelectionEnabled(true);
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60 treeTable.setSelectionMode(ListSelectionModel.SINGLE_INTERVAL_SELECTION);
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61 treeTable.setDragEnabled(true);
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62 JScrollPane sp = new JScrollPane(treeTable);
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63 sp.getViewport().setBackground(Color.white);
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64
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65 setLayout(new BorderLayout());
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66 add(sp, BorderLayout.CENTER);
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67 }
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68
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69 /** Clear the contents of this VariablePanel */
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70 public void clear() {
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71 root.removeAllChildren();
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72 model.fireTreeStructureChanged();
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73 }
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74
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75 /** Update the contents of this VariablePanel from the given CFrame */
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76 public void update(CFrame fr) {
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77 // Collect locals
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78 CCollector coll = new CCollector();
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79 fr.iterateLocals(coll);
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80 update(coll);
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81 }
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82
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83 /** Update the contents of this VariablePanel from the given JavaVFrame */
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84 public void update(JavaVFrame jfr) {
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85 Method m = jfr.getMethod();
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86 if (!m.hasLocalVariableTable()) {
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87 return;
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88 }
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89 int bci = jfr.getBCI();
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90 // Get local variable table
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91 LocalVariableTableElement[] locals = m.getLocalVariableTable();
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92 // Get locals as StackValueCollection
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93 StackValueCollection coll = jfr.getLocals();
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94 root.removeAllChildren();
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95 // See which locals are live
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96 for (int i = 0; i < locals.length; i++) {
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97 LocalVariableTableElement local = locals[i];
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98 if (local.getStartBCI() <= bci && bci < local.getStartBCI() + local.getLength()) {
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99 // Valid; add it
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100 SimpleTreeNode node = null;
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101 Symbol name = null;
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102 try {
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103 name = m.getConstants().getSymbolAt(local.getNameCPIndex());
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104 if (name == null) {
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105 System.err.println("Null name at slot " +
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106 local.getNameCPIndex() +
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107 " for local variable at slot " +
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108 local.getSlot());
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109 continue;
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110 }
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111 } catch (Exception e) {
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112 System.err.println("Unable to fetch name at slot " +
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113 local.getNameCPIndex() +
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114 " for local variable at slot " +
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115 local.getSlot());
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116 e.printStackTrace();
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117 continue;
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118 }
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119 sun.jvm.hotspot.oops.NamedFieldIdentifier f =
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120 new sun.jvm.hotspot.oops.NamedFieldIdentifier(name.asString());
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121 Symbol descriptor = null;
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122 try {
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123 descriptor = m.getConstants().getSymbolAt(local.getDescriptorCPIndex());
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124 } catch (Exception e) {
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125 System.err.println("Unable to fetch descriptor at slot " +
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126 local.getDescriptorCPIndex() +
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127 " for local variable " + f.getName() +
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128 " at slot " + local.getSlot());
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129 e.printStackTrace();
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130 continue;
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131 }
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132
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133 if (descriptor != null) {
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134 switch (descriptor.getByteAt(0)) {
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135 case 'F': {
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136 node = new sun.jvm.hotspot.ui.tree.FloatTreeNodeAdapter(coll.floatAt(local.getSlot()), f, true);
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137 break;
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138 }
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139 case 'D': {
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140 node = new sun.jvm.hotspot.ui.tree.DoubleTreeNodeAdapter(coll.doubleAt(local.getSlot()), f, true);
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141 break;
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142 }
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143 case 'C': {
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144 node = new sun.jvm.hotspot.ui.tree.CharTreeNodeAdapter((char) coll.intAt(local.getSlot()), f, true);
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145 break;
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146 }
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147 case 'B':
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148 case 'S':
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149 case 'I': {
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150 node = new sun.jvm.hotspot.ui.tree.LongTreeNodeAdapter(coll.intAt(local.getSlot()), f, true);
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151 break;
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152 }
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153 case 'Z': {
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154 node = new sun.jvm.hotspot.ui.tree.BooleanTreeNodeAdapter(
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155 ((coll.intAt(local.getSlot()) != 0) ? true : false), f, true
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156 );
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157 break;
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158 }
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159 case 'J': {
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160 node = new sun.jvm.hotspot.ui.tree.LongTreeNodeAdapter(coll.longAt(local.getSlot()), f, true);
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161 break;
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162 }
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163 default: {
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164 try {
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165 node = new sun.jvm.hotspot.ui.tree.OopTreeNodeAdapter(
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166 VM.getVM().getObjectHeap().newOop(coll.oopHandleAt(local.getSlot())), f, true
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167 );
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168 } catch (AddressException e) {
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169 node = new sun.jvm.hotspot.ui.tree.FieldTreeNodeAdapter(f, true) {
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170 public int getChildCount() { return 0; }
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171 public SimpleTreeNode getChild(int i) { return null; }
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172 public boolean isLeaf() { return false; }
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173 public int getIndexOfChild(SimpleTreeNode child) { return 0; }
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174 public String getValue() {
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175 return "<Bad oop>";
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176 }
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177 };
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178 }
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179 break;
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180 }
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181 }
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182 if (node != null) {
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183 root.addChild(node);
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184 }
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185 }
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186 }
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187 }
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188
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189 model.fireTreeStructureChanged();
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190 }
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191
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192 /** Update the contents of this VariablePanel from the given "this"
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193 pointer of the given type */
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194 public void update(Address thisAddr, Type type) {
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195 // Collect fields
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196 CCollector coll = new CCollector();
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197 type.iterateObject(thisAddr, coll);
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198 update(coll);
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199 }
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200
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201 private void update(CCollector coll) {
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202 root.removeAllChildren();
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203 for (int i = 0; i < coll.getNumChildren(); i++) {
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204 root.addChild(coll.getChild(i));
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205 }
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206 model.fireTreeStructureChanged();
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207 }
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208
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209 static class CCollector extends DefaultObjectVisitor {
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210 private java.util.List children;
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211
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212 public CCollector() {
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213 children = new ArrayList();
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214 }
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215
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216 public int getNumChildren() {
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217 return children.size();
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218 }
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219
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220 public SimpleTreeNode getChild(int i) {
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221 return (SimpleTreeNode) children.get(i);
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222 }
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223
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224 public void doBit(sun.jvm.hotspot.debugger.cdbg.FieldIdentifier f, long val) {
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225 children.add(new sun.jvm.hotspot.bugspot.tree.LongTreeNodeAdapter(val, f, true));
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226 }
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227 public void doInt(sun.jvm.hotspot.debugger.cdbg.FieldIdentifier f, long val) {
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228 children.add(new sun.jvm.hotspot.bugspot.tree.LongTreeNodeAdapter(val, f, true));
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229 }
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230 public void doEnum(sun.jvm.hotspot.debugger.cdbg.FieldIdentifier f, long val, String enumName) {
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231 children.add(new sun.jvm.hotspot.bugspot.tree.EnumTreeNodeAdapter(enumName, val, f, true));
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232 }
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233 public void doFloat(sun.jvm.hotspot.debugger.cdbg.FieldIdentifier f, float val) {
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234 children.add(new sun.jvm.hotspot.bugspot.tree.FloatTreeNodeAdapter(val, f, true));
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235 }
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236 public void doDouble(sun.jvm.hotspot.debugger.cdbg.FieldIdentifier f, double val) {
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237 children.add(new sun.jvm.hotspot.bugspot.tree.DoubleTreeNodeAdapter(val, f, true));
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238 }
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239 public void doPointer(sun.jvm.hotspot.debugger.cdbg.FieldIdentifier f, Address val) {
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240 children.add(new sun.jvm.hotspot.bugspot.tree.AddressTreeNodeAdapter(val, f, true));
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241 }
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242 public void doArray(sun.jvm.hotspot.debugger.cdbg.FieldIdentifier f, Address val) {
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243 children.add(new sun.jvm.hotspot.bugspot.tree.AddressTreeNodeAdapter(val, f, true));
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244 }
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245 public void doRef(sun.jvm.hotspot.debugger.cdbg.FieldIdentifier f, Address val) {
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246 children.add(new sun.jvm.hotspot.bugspot.tree.AddressTreeNodeAdapter(val, f, true));
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247 }
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248 public void doCompound(sun.jvm.hotspot.debugger.cdbg.FieldIdentifier f, Address val) {
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249 children.add(new sun.jvm.hotspot.bugspot.tree.ObjectTreeNodeAdapter(val, f, true));
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250 }
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251 }
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252 }
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