Mercurial > hg > graal-jvmci-8
annotate c1x4hotspotsrc/HotSpotVM/src/com/sun/hotspot/c1x/HotSpotMethodResolved.java @ 2049:7e09ea4a8f36
Added leaf method assumptions.
author | Thomas Wuerthinger <wuerthinger@ssw.jku.at> |
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date | Mon, 10 Jan 2011 16:59:48 +0100 |
parents | f5908cceac7d |
children | 3c0a889a176b |
rev | line source |
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1 /* |
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2 * Copyright (c) 2010 Sun Microsystems, Inc. All rights reserved. |
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3 * |
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4 * Sun Microsystems, Inc. has intellectual property rights relating to technology embodied in the product |
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5 * that is described in this document. In particular, and without limitation, these intellectual property |
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6 * rights may include one or more of the U.S. patents listed at http://www.sun.com/patents and one or |
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7 * more additional patents or pending patent applications in the U.S. and in other countries. |
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8 * |
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9 * U.S. Government Rights - Commercial software. Government users are subject to the Sun |
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10 * Microsystems, Inc. standard license agreement and applicable provisions of the FAR and its |
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11 * supplements. |
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12 * |
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13 * Use is subject to license terms. Sun, Sun Microsystems, the Sun logo, Java and Solaris are trademarks or |
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14 * registered trademarks of Sun Microsystems, Inc. in the U.S. and other countries. All SPARC trademarks |
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15 * are used under license and are trademarks or registered trademarks of SPARC International, Inc. in the |
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16 * U.S. and other countries. |
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17 * |
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18 * UNIX is a registered trademark in the U.S. and other countries, exclusively licensed through X/Open |
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19 * Company, Ltd. |
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20 */ |
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21 package com.sun.hotspot.c1x; |
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22 |
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23 import java.lang.reflect.*; |
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24 |
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25 import com.sun.cri.ci.*; |
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26 import com.sun.cri.ri.*; |
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27 |
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28 /** |
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29 * Implementation of RiMethod for resolved HotSpot methods. |
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30 * |
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31 * @author Thomas Wuerthinger, Lukas Stadler |
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32 */ |
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33 public class HotSpotMethodResolved implements HotSpotMethod { |
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34 |
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35 private final long vmId; |
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36 private final String name; |
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37 |
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38 // cached values |
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39 private byte[] code; |
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40 private int accessFlags = -1; |
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41 private int maxLocals = -1; |
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42 private int maxStackSize = -1; |
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43 private RiExceptionHandler[] exceptionHandlers; |
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44 private RiSignature signature; |
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45 private RiType holder; |
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46 private Boolean hasBalancedMonitors; |
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47 |
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48 public HotSpotMethodResolved(long vmId, String name) { |
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49 this.vmId = vmId; |
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50 this.name = name; |
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51 } |
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52 |
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53 @Override |
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54 public int accessFlags() { |
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55 if (accessFlags == -1) { |
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56 accessFlags = Compiler.getVMEntries().RiMethod_accessFlags(vmId); |
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57 } |
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58 return accessFlags; |
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59 } |
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60 |
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61 @Override |
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62 public boolean canBeStaticallyBound() { |
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63 return isLeafMethod() || Modifier.isStatic(accessFlags()); |
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64 } |
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65 |
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66 @Override |
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67 public byte[] code() { |
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68 if (code == null) { |
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69 code = Compiler.getVMEntries().RiMethod_code(vmId); |
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70 } |
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71 return code; |
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72 } |
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73 |
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74 @Override |
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75 public RiExceptionHandler[] exceptionHandlers() { |
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76 if (exceptionHandlers == null) { |
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77 exceptionHandlers = Compiler.getVMEntries().RiMethod_exceptionHandlers(vmId); |
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78 } |
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79 return exceptionHandlers; |
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80 } |
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81 |
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82 @Override |
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83 public boolean hasBalancedMonitors() { |
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84 if (hasBalancedMonitors == null) { |
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85 hasBalancedMonitors = Compiler.getVMEntries().RiMethod_hasBalancedMonitors(vmId); |
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86 } |
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87 return hasBalancedMonitors; |
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88 } |
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89 |
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90 @Override |
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91 public RiType holder() { |
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92 if (holder == null) { |
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93 holder = Compiler.getVMEntries().RiMethod_holder(vmId); |
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94 } |
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95 return holder; |
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96 } |
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97 |
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98 @Override |
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99 public boolean isClassInitializer() { |
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100 return "<clinit>".equals(name); |
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101 } |
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102 |
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103 @Override |
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104 public boolean isConstructor() { |
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105 return "<init>".equals(name); |
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106 } |
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107 |
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108 @Override |
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109 public boolean isLeafMethod() { |
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110 return Modifier.isFinal(accessFlags()) || Modifier.isPrivate(accessFlags()); |
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111 } |
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112 |
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113 @Override |
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114 public boolean isOverridden() { |
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115 throw new UnsupportedOperationException("isOverridden"); |
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116 } |
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117 |
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118 @Override |
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119 public boolean isResolved() { |
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120 return true; |
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121 } |
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122 |
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123 @Override |
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124 public String jniSymbol() { |
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125 throw new UnsupportedOperationException("jniSymbol"); |
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126 } |
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127 |
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129 return null; |
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130 } |
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131 |
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132 @Override |
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133 public int maxLocals() { |
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134 if (maxLocals == -1) { |
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135 maxLocals = Compiler.getVMEntries().RiMethod_maxLocals(vmId); |
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136 } |
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137 return maxLocals; |
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138 } |
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139 |
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140 @Override |
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141 public int maxStackSize() { |
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142 if (maxStackSize == -1) { |
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143 maxStackSize = Compiler.getVMEntries().RiMethod_maxStackSize(vmId); |
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144 } |
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145 return maxStackSize; |
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146 } |
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147 |
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148 @Override |
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149 public RiMethodProfile methodData() { |
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150 return null; |
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151 } |
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152 |
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153 @Override |
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154 public String name() { |
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155 return name; |
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156 } |
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157 |
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158 @Override |
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159 public StackTraceElement toStackTraceElement(int bci) { |
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160 return CiUtil.toStackTraceElement(this, bci); |
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161 } |
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162 |
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163 @Override |
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164 public RiMethod uniqueConcreteMethod() { |
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165 return Compiler.getVMEntries().RiMethod_uniqueConcreteMethod(vmId); |
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166 } |
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167 |
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168 @Override |
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169 public RiSignature signature() { |
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170 if (signature == null) { |
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171 signature = new HotSpotSignature(Compiler.getVMEntries().RiMethod_signature(vmId)); |
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172 } |
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173 return signature; |
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174 } |
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175 |
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176 @Override |
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177 public String toString() { |
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178 return "HotSpotMethod<" + holder().name() + ". " + name + ">"; |
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179 } |
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180 |
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181 public boolean hasCompiledCode() { |
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182 // TODO: needs a VMEntries to go cache the result of that method. |
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183 // This isn't used by GRAAL for now, so this is enough. |
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184 return false; |
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185 } |
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186 |
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187 @Override |
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188 public Class<?> accessor() { |
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189 return null; |
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190 } |
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191 |
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192 @Override |
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193 public int intrinsic() { |
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194 return 0; |
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195 } |
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196 } |