1 /* |
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2 * Copyright (c) 2001, Oracle and/or its affiliates. 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * 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.tree; |
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26 |
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27 import java.io.*; |
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28 import sun.jvm.hotspot.debugger.*; |
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29 import sun.jvm.hotspot.debugger.cdbg.*; |
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30 import sun.jvm.hotspot.ui.tree.SimpleTreeNode; |
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31 |
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32 /** An adapter class which allows C/C++ objects to be displayed in a |
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33 tree via the SimpleTreeNode interface. */ |
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34 |
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35 public class ObjectTreeNodeAdapter extends FieldTreeNodeAdapter { |
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36 // Address of object |
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37 private Address addr; |
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38 |
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39 /** The address may be null (for object fields of objcets which are |
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40 null). The FieldIdentifier should not be null. treeTableMode |
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41 defaults to false. */ |
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42 public ObjectTreeNodeAdapter(Address addr, FieldIdentifier id) { |
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43 this(addr, id, false); |
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44 } |
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45 |
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46 /** The address may be null (for object fields of objcets which are |
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47 null). The FieldIdentifier should not be null. */ |
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48 public ObjectTreeNodeAdapter(Address addr, FieldIdentifier id, boolean treeTableMode) { |
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49 super(id, treeTableMode); |
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50 this.addr = addr; |
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51 } |
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52 |
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53 public int getChildCount() { |
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54 if (addr == null) { |
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55 return 0; |
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56 } |
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57 |
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58 Counter c = new Counter(); |
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59 getType().iterateObject(addr, c); |
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60 return c.getNumFields(); |
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61 } |
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62 |
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63 public SimpleTreeNode getChild(int index) { |
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64 if (addr == null) { |
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65 return null; |
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66 } |
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67 |
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68 Fetcher f = new Fetcher(index); |
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69 getType().iterateObject(addr, f); |
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70 return f.getChild(); |
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71 } |
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72 |
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73 public boolean isLeaf() { |
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74 return (addr == null); |
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75 } |
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76 |
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77 public int getIndexOfChild(SimpleTreeNode child) { |
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78 FieldIdentifier id = ((FieldTreeNodeAdapter) child).getID(); |
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79 Finder f = new Finder(id); |
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80 getType().iterateObject(addr, f); |
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81 return f.getIndex(); |
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82 } |
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83 |
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84 public String getValue() { |
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85 if (addr != null) { |
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86 return addr.toString(); |
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87 } |
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88 return "NULL"; |
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89 } |
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90 |
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91 /** Should be used only once, then have the number of fields |
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92 fetched. */ |
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93 static class Counter extends DefaultObjectVisitor { |
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94 private int numFields; |
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95 |
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96 public int getNumFields() { |
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97 return numFields; |
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98 } |
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99 |
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100 public void doBit(FieldIdentifier f, long val) { ++numFields; } |
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101 public void doInt(FieldIdentifier f, long val) { ++numFields; } |
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102 public void doEnum(FieldIdentifier f, long val, String enumName) { ++numFields; } |
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103 public void doFloat(FieldIdentifier f, float val) { ++numFields; } |
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104 public void doDouble(FieldIdentifier f, double val) { ++numFields; } |
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105 public void doPointer(FieldIdentifier f, Address val) { ++numFields; } |
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106 public void doArray(FieldIdentifier f, Address val) { ++numFields; } |
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107 public void doRef(FieldIdentifier f, Address val) { ++numFields; } |
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108 public void doCompound(FieldIdentifier f, Address addr) { ++numFields; } |
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109 } |
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110 |
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111 /** Creates a new SimpleTreeNode for the given field. */ |
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112 class Fetcher extends DefaultObjectVisitor { |
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113 private int index; |
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114 private int curField; |
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115 private SimpleTreeNode child; |
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116 |
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117 public Fetcher(int index) { |
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118 this.index = index; |
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119 } |
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120 |
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121 public SimpleTreeNode getChild() { |
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122 return child; |
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123 } |
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124 |
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125 public void doBit(FieldIdentifier f, long val) { |
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126 if (curField == index) { |
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127 child = new LongTreeNodeAdapter(val, f, getTreeTableMode()); |
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128 } |
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129 ++curField; |
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130 } |
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131 |
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132 public void doInt(FieldIdentifier f, long val) { |
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133 if (curField == index) { |
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134 child = new LongTreeNodeAdapter(val, f, getTreeTableMode()); |
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135 } |
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136 ++curField; |
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137 } |
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138 |
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139 public void doEnum(FieldIdentifier f, long val, String enumName) { |
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140 if (curField == index) { |
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141 child = new EnumTreeNodeAdapter(enumName, val, f, getTreeTableMode()); |
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142 } |
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143 ++curField; |
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144 } |
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145 |
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146 public void doFloat(FieldIdentifier f, float val) { |
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147 if (curField == index) { |
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148 child = new FloatTreeNodeAdapter(val, f, getTreeTableMode()); |
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149 } |
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150 ++curField; |
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151 } |
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152 |
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153 public void doDouble(FieldIdentifier f, double val) { |
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154 if (curField == index) { |
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155 child = new DoubleTreeNodeAdapter(val, f, getTreeTableMode()); |
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156 } |
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157 ++curField; |
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158 } |
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159 |
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160 public void doPointer(FieldIdentifier f, Address val) { |
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161 if (curField == index) { |
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162 child = new AddressTreeNodeAdapter(val, f, getTreeTableMode()); |
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163 } |
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164 ++curField; |
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165 } |
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166 |
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167 public void doArray(FieldIdentifier f, Address val) { |
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168 if (curField == index) { |
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169 child = new AddressTreeNodeAdapter(val, f, getTreeTableMode()); |
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170 } |
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171 ++curField; |
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172 } |
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173 |
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174 public void doRef(FieldIdentifier f, Address val) { |
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175 if (curField == index) { |
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176 child = new AddressTreeNodeAdapter(val, f, getTreeTableMode()); |
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177 } |
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178 ++curField; |
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179 } |
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180 |
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181 public void doCompound(FieldIdentifier f, Address val) { |
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182 if (curField == index) { |
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183 child = new ObjectTreeNodeAdapter(val, f, getTreeTableMode()); |
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184 } |
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185 ++curField; |
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186 } |
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187 } |
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188 |
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189 /** Finds the index of the given FieldIdentifier. */ |
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190 static class Finder extends DefaultObjectVisitor { |
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191 private FieldIdentifier id; |
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192 private int curField; |
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193 private int index = -1; |
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194 |
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195 public Finder(FieldIdentifier id) { |
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196 this.id = id; |
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197 } |
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198 |
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199 /** Returns -1 if not found */ |
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200 public int getIndex() { |
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201 return index; |
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202 } |
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203 |
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204 public void doBit(FieldIdentifier f, long val) { if (f.equals(id)) { index = curField; } ++curField; } |
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205 public void doInt(FieldIdentifier f, long val) { if (f.equals(id)) { index = curField; } ++curField; } |
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206 public void doEnum(FieldIdentifier f, long val, |
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207 String enumName) { if (f.equals(id)) { index = curField; } ++curField; } |
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208 public void doFloat(FieldIdentifier f, float val) { if (f.equals(id)) { index = curField; } ++curField; } |
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209 public void doDouble(FieldIdentifier f, double val) { if (f.equals(id)) { index = curField; } ++curField; } |
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210 public void doPointer(FieldIdentifier f, Address val) { if (f.equals(id)) { index = curField; } ++curField; } |
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211 public void doArray(FieldIdentifier f, Address val) { if (f.equals(id)) { index = curField; } ++curField; } |
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212 public void doRef(FieldIdentifier f, Address val) { if (f.equals(id)) { index = curField; } ++curField; } |
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213 public void doCompound(FieldIdentifier f, |
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214 Address val) { if (f.equals(id)) { index = curField; } ++curField; } |
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215 } |
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216 } |
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