Mercurial > hg > truffle
annotate graal/com.oracle.max.graal.debug/src/com/oracle/max/graal/debug/internal/DebugScope.java @ 4392:a04feadb1d47
Removed debug output.
author | Thomas Wuerthinger <thomas.wuerthinger@oracle.com> |
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date | Sat, 28 Jan 2012 21:44:17 +0100 |
parents | efc430d943c0 |
children | cf609017d3d4 |
rev | line source |
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1 /* |
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2 * Copyright (c) 2012, 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 package com.oracle.max.graal.debug.internal; |
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24 |
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25 import java.io.*; |
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26 import java.util.*; |
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27 import java.util.concurrent.*; |
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28 |
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29 import com.oracle.max.graal.debug.*; |
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30 |
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31 |
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32 public final class DebugScope { |
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33 |
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34 private static ThreadLocal<DebugScope> instanceTL = new ThreadLocal<>(); |
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35 private static ThreadLocal<DebugConfig> configTL = new ThreadLocal<>(); |
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36 private static ThreadLocal<RuntimeException> lastExceptionThrownTL = new ThreadLocal<>(); |
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37 |
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38 private final DebugScope parent; |
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39 |
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40 private Object[] context; |
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41 |
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42 private List<DebugScope> children; |
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43 private DebugValueMap valueMap; |
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44 private String qualifiedName; |
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45 |
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46 private static final char SCOPE_SEP = '.'; |
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47 |
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48 private boolean logEnabled; |
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49 private boolean meterEnabled; |
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50 private boolean timerEnabled; |
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51 private boolean dumpEnabled; |
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52 |
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53 public static DebugScope getInstance() { |
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54 DebugScope result = instanceTL.get(); |
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55 if (result == null) { |
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56 instanceTL.set(new DebugScope("", null)); |
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57 return instanceTL.get(); |
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58 } else { |
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59 return result; |
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60 } |
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61 } |
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62 |
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63 public static DebugConfig getConfig() { |
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64 return configTL.get(); |
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65 } |
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66 |
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67 private DebugScope(String qualifiedName, DebugScope parent, Object... context) { |
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68 this.parent = parent; |
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69 this.context = context; |
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70 this.qualifiedName = qualifiedName; |
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71 } |
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72 |
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73 public boolean isDumpEnabled() { |
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74 return dumpEnabled; |
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75 } |
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76 |
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77 public boolean isLogEnabled() { |
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78 return logEnabled; |
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79 } |
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80 |
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81 public boolean isMeterEnabled() { |
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82 return meterEnabled; |
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83 } |
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84 |
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85 public boolean isTimerEnabled() { |
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86 return timerEnabled; |
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87 } |
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88 |
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89 public void log(String msg, Object... args) { |
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90 if (isLogEnabled()) { |
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91 cachedOut.println(String.format(msg, args)); |
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92 } |
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93 } |
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94 |
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95 public void dump(Object object, String formatString, Object[] args) { |
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96 if (isDumpEnabled()) { |
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97 DebugConfig config = getConfig(); |
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98 if (config != null) { |
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99 String message = String.format(formatString, args); |
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100 for (DebugDumpHandler dumpHandler : config.dumpHandlers()) { |
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101 dumpHandler.dump(object, message); |
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102 } |
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103 } |
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104 } |
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105 } |
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106 |
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107 public <T> T scope(String newName, Runnable runnable, Callable<T> callable, boolean sandbox, Object[] newContext) { |
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108 DebugScope oldContext = getInstance(); |
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109 DebugConfig oldConfig = getConfig(); |
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110 DebugScope newChild = null; |
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111 if (sandbox) { |
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112 newChild = new DebugScope(newName, null, newContext); |
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113 setConfig(null); |
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114 } else { |
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115 newChild = oldContext.createChild(newName, newContext); |
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116 } |
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117 instanceTL.set(newChild); |
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118 newChild.updateFlags(); |
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119 try { |
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120 return executeScope(runnable, callable); |
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121 } finally { |
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122 newChild.deactivate(); |
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123 instanceTL.set(oldContext); |
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124 setConfig(oldConfig); |
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125 } |
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126 } |
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127 |
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128 private <T> T executeScope(Runnable runnable, Callable<T> callable) { |
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129 try { |
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130 instanceTL.get().log("Starting scope %s", instanceTL.get().getQualifiedName()); |
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131 if (runnable != null) { |
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132 runnable.run(); |
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133 } |
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134 if (callable != null) { |
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135 return call(callable); |
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136 } |
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137 } catch (RuntimeException e) { |
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138 if (e == lastExceptionThrownTL.get()) { |
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139 throw e; |
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140 } else { |
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141 RuntimeException newException = interceptException(e); |
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142 lastExceptionThrownTL.set(newException); |
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143 throw newException; |
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144 } |
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145 } |
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146 return null; |
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147 } |
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148 |
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149 private void updateFlags() { |
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150 DebugConfig config = getConfig(); |
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151 if (config == null) { |
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152 logEnabled = false; |
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153 meterEnabled = false; |
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154 timerEnabled = false; |
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155 dumpEnabled = false; |
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156 } else { |
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157 logEnabled = config.isLogEnabled(); |
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158 meterEnabled = config.isMeterEnabled(); |
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159 timerEnabled = config.isTimerEnabled(); |
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160 dumpEnabled = config.isDumpEnabled(); |
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161 } |
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162 } |
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163 |
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164 private void deactivate() { |
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165 context = null; |
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166 } |
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167 |
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168 private RuntimeException interceptException(final RuntimeException e) { |
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169 final DebugConfig config = getConfig(); |
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170 if (config != null) { |
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171 return scope("InterceptException", null, new Callable<RuntimeException>(){ |
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172 @Override |
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173 public RuntimeException call() throws Exception { |
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174 try { |
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175 return config.interceptException(e); |
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176 } catch (Throwable t) { |
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177 return e; |
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178 } |
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179 }}, false, new Object[]{e}); |
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180 } |
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181 return e; |
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182 } |
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183 |
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184 private DebugValueMap getValueMap() { |
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185 if (valueMap == null) { |
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186 valueMap = new DebugValueMap(); |
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187 } |
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188 return valueMap; |
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189 } |
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190 |
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191 long getCurrentValue(int index) { |
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192 return getValueMap().getCurrentValue(index); |
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193 } |
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194 |
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195 void setCurrentValue(int index, long l) { |
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196 getValueMap().setCurrentValue(index, l); |
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197 } |
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198 |
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199 private DebugScope createChild(String newName, Object[] newContext) { |
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200 String newQualifiedName = newName; |
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201 if (this.qualifiedName.length() > 0) { |
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202 newQualifiedName = this.qualifiedName + SCOPE_SEP + newName; |
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203 } |
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204 DebugScope result = new DebugScope(newQualifiedName, this, newContext); |
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205 if (children == null) { |
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206 children = new ArrayList<>(4); |
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207 } |
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208 children.add(result); |
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209 return result; |
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210 } |
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211 |
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212 public Iterable<Object> getCurrentContext() { |
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213 return new Iterable<Object>() { |
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214 |
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215 @Override |
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216 public Iterator<Object> iterator() { |
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217 return new Iterator<Object>() { |
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218 |
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219 DebugScope currentScope = DebugScope.this; |
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220 int objectIndex; |
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221 |
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222 @Override |
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223 public boolean hasNext() { |
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224 selectScope(); |
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225 return currentScope != null; |
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226 } |
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227 |
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228 private void selectScope() { |
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229 while (currentScope != null && currentScope.context.length <= objectIndex) { |
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230 currentScope = currentScope.parent; |
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231 objectIndex = 0; |
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232 } |
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233 } |
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234 |
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|
235 @Override |
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236 public Object next() { |
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237 selectScope(); |
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238 if (currentScope != null) { |
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239 return currentScope.context[objectIndex++]; |
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240 } |
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241 throw new IllegalStateException("May only be called if there is a next element."); |
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242 } |
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243 |
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244 @Override |
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245 public void remove() { |
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246 throw new UnsupportedOperationException("This iterator is read only."); |
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247 } |
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248 }; |
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249 } |
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250 }; |
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251 } |
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252 |
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253 public static <T> T call(Callable<T> callable) { |
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254 try { |
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255 return callable.call(); |
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256 } catch (Exception e) { |
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257 if (e instanceof RuntimeException) { |
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258 throw (RuntimeException) e; |
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259 } else { |
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260 throw new RuntimeException(e); |
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261 } |
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262 } |
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263 } |
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264 |
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265 public void setConfig(DebugConfig newConfig) { |
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266 configTL.set(newConfig); |
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267 updateFlags(); |
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268 } |
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269 |
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270 public String getQualifiedName() { |
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271 return qualifiedName; |
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272 } |
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273 |
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274 public static PrintStream cachedOut; |
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275 |
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276 public static void initialize() { |
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277 cachedOut = System.out; |
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278 } |
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279 } |
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280 |