Mercurial > hg > truffle
annotate graal/com.oracle.max.cri/src/com/oracle/max/cri/ri/RiResolvedType.java @ 4266:e2499e6d8aa7
Merge
author | Lukas Stadler <lukas.stadler@jku.at> |
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date | Wed, 11 Jan 2012 16:31:46 +0100 |
parents | aaac4894175c |
children | f35c183f33ce |
rev | line source |
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1 /* |
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2 * Copyright (c) 2009, 2011, 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.cri.ri; |
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24 |
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25 import java.lang.annotation.*; |
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26 import java.lang.reflect.*; |
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27 |
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28 import com.oracle.max.cri.ci.*; |
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29 |
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30 /** |
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31 * Represents a resolved in the compiler-runtime interface. Types include primitives, objects, {@code void}, |
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32 * and arrays thereof. Types, like fields and methods, are resolved through {@link RiConstantPool constant pools}, and |
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33 * their actual implementation is provided by the {@link RiRuntime runtime} to the compiler. |
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34 */ |
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35 public interface RiResolvedType extends RiType { |
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36 |
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37 /** |
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38 * Gets the encoding of (that is, a constant representing the value of) the specified part of this type. |
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39 * @param r the part of the this type |
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40 * @return a constant representing a reference to the specified part of this type |
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41 */ |
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42 CiConstant getEncoding(Representation r); |
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43 |
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44 /** |
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45 * Checks whether this type has any subclasses so far. Any decisions |
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46 * based on this information require the registration of a dependency, since |
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47 * this information may change. |
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48 * @return {@code true} if this class has subclasses |
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49 */ |
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50 boolean hasSubclass(); |
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51 |
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52 /** |
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53 * Checks whether this type has a finalizer method. |
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54 * @return {@code true} if this class has a finalizer |
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55 */ |
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56 boolean hasFinalizer(); |
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57 |
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58 /** |
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59 * Checks whether this type has any finalizable subclasses so far. Any decisions |
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60 * based on this information require the registration of a dependency, since |
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61 * this information may change. |
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62 * @return {@code true} if this class has any subclasses with finalizers |
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63 */ |
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64 boolean hasFinalizableSubclass(); |
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65 |
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66 /** |
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67 * Checks whether this type is an interface. |
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68 * @return {@code true} if this type is an interface |
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69 */ |
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70 boolean isInterface(); |
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71 |
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72 /** |
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73 * Checks whether this type is an instance class. |
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74 * @return {@code true} if this type is an instance class |
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75 */ |
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76 boolean isInstanceClass(); |
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77 |
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78 /** |
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79 * Checks whether this type is an array class. |
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80 * @return {@code true} if this type is an array class |
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81 */ |
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82 boolean isArrayClass(); |
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83 |
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84 /** |
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85 * Gets the access flags for this type. Only the flags specified in the JVM specification |
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86 * will be included in the returned mask. The utility methods in the {@link Modifier} class |
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87 * should be used to query the returned mask for the presence/absence of individual flags. |
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88 * @return the mask of JVM defined class access flags defined for this type |
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89 */ |
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90 int accessFlags(); |
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91 |
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92 /** |
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93 * Checks whether this type is initialized. |
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94 * @return {@code true} if this type is initialized |
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95 */ |
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96 boolean isInitialized(); |
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97 |
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98 /** |
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99 * Checks whether this type is a subtype of another type. |
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100 * @param other the type to test |
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101 * @return {@code true} if this type a subtype of the specified type |
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102 */ |
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103 boolean isSubtypeOf(RiResolvedType other); |
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104 |
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105 /** |
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106 * Checks whether the specified object is an instance of this type. |
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107 * @param obj the object to test |
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108 * @return {@code true} if the object is an instance of this type |
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109 */ |
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110 boolean isInstance(CiConstant obj); |
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111 |
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112 /** |
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113 * Attempts to get an exact type for this type. Final classes, |
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114 * arrays of final classes, and primitive types all have exact types. |
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115 * @return the exact type of this type, if it exists; {@code null} otherwise |
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116 */ |
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117 RiResolvedType exactType(); |
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118 |
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119 /** |
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120 * Gets the super type of this type or {@code null} if no such type exists. |
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121 */ |
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122 RiResolvedType superType(); |
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123 |
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124 /** |
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125 * Attempts to get the unique concrete subtype of this type. |
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126 * @return the exact type of this type, if it exists; {@code null} otherwise |
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127 */ |
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128 RiResolvedType uniqueConcreteSubtype(); |
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129 |
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130 /** |
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131 * For array types, gets the type of the components. |
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132 * @return the component type of this array type |
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133 */ |
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134 RiResolvedType componentType(); |
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135 |
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136 /** |
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137 * Gets the type representing an array with elements of this type. |
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138 * @return a new compiler interface type representing an array of this type |
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139 */ |
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140 RiResolvedType arrayOf(); |
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141 |
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142 /** |
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143 * Resolves the method implementation for virtual dispatches on objects |
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144 * of this dynamic type. |
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145 * @param method the method to select the implementation of |
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146 * @return the method implementation that would be selected at runtime |
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147 */ |
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148 RiResolvedMethod resolveMethodImpl(RiResolvedMethod method); |
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149 |
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150 /** |
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151 * Given an RiMethod a, returns a concrete RiMethod b that is the only possible |
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152 * unique target for a virtual call on a(). Returns {@code null} if either no |
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153 * such concrete method or more than one such method exists. Returns the method a |
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154 * if a is a concrete method that is not overridden. If the compiler uses the |
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155 * result of this method for its compilation, it must register an assumption |
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156 * (see {@link CiAssumptions}), because dynamic class loading can invalidate |
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157 * the result of this method. |
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158 * @param method the method a for which a unique concrete target is searched |
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159 * @return the unique concrete target or {@code null} if no such target exists |
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160 * or assumptions are not supported by this runtime |
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161 */ |
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162 RiResolvedMethod uniqueConcreteMethod(RiResolvedMethod method); |
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163 |
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164 /** |
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165 * Returns the instance fields declared in this class sorted by field offset. |
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166 * @return an array of instance fields |
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167 */ |
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168 RiResolvedField[] declaredFields(); |
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169 |
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170 /** |
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171 * Returns this type's annotation of a specified type. |
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172 * |
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173 * @param annotationClass the Class object corresponding to the annotation type |
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174 * @return the annotation of type {@code annotationClass} for this type if present, else null |
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175 */ |
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176 <T extends Annotation> T getAnnotation(Class<T> annotationClass); |
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177 |
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178 /** |
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179 * Returns the java.lang.Class object representing this RiType instance or {@code null} if none exists. |
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180 * @return the java.lang.Class object |
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181 */ |
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182 Class<?> toJava(); |
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183 } |