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annotate truffle/com.oracle.truffle.object.basic/src/com/oracle/truffle/object/basic/BasicAllocator.java @ 21951:9c8c0937da41

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Moving all sources into truffle subdirectory
author Jaroslav Tulach <jaroslav.tulach@oracle.com>
date Wed, 17 Jun 2015 10:58:08 +0200
parents graal/com.oracle.truffle.object.basic/src/com/oracle/truffle/object/basic/BasicAllocator.java@2c3666f44855
children dc83cc1f94f2
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1 /*
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2 * Copyright (c) 2012, 2014, 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.truffle.object.basic;
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24
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25 import static com.oracle.truffle.object.basic.BasicLocations.*;
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26
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27 import com.oracle.truffle.api.object.*;
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28 import com.oracle.truffle.object.*;
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29 import com.oracle.truffle.object.LocationImpl.InternalLongLocation;
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30 import com.oracle.truffle.object.Locations.ConstantLocation;
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31 import com.oracle.truffle.object.Locations.DeclaredDualLocation;
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32 import com.oracle.truffle.object.Locations.DualLocation;
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33 import com.oracle.truffle.object.Locations.ValueLocation;
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34 import com.oracle.truffle.object.basic.BasicLocations.BooleanLocationDecorator;
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35 import com.oracle.truffle.object.basic.BasicLocations.DoubleLocationDecorator;
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36 import com.oracle.truffle.object.basic.BasicLocations.IntLocationDecorator;
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37 import com.oracle.truffle.object.basic.BasicLocations.LongArrayLocation;
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38 import com.oracle.truffle.object.basic.BasicLocations.LongFieldLocation;
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39 import com.oracle.truffle.object.basic.BasicLocations.ObjectArrayLocation;
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40
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41 public abstract class BasicAllocator extends ShapeImpl.BaseAllocator {
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42
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43 public BasicAllocator(LayoutImpl layout) {
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44 super(layout);
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45 advance(((BasicLayout) layout).getPrimitiveArrayLocation());
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46 }
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47
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48 public BasicAllocator(ShapeImpl shape) {
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49 super(shape);
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50 }
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51
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52 private BasicLayout getLayout() {
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53 return (BasicLayout) layout;
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54 }
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55
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56 @Override
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57 protected Location moveLocation(Location oldLocation) {
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58 if (oldLocation instanceof DeclaredDualLocation) {
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59 return advance(newDeclaredDualLocation(((DeclaredDualLocation) oldLocation).get(null, false)));
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60 } else if (oldLocation instanceof DualLocation) {
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61 return advance(newDualLocation(((DualLocation) oldLocation).getType()));
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62 } else if (oldLocation instanceof LongLocation) {
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63 return newLongLocation(oldLocation.isFinal());
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64 } else if (oldLocation instanceof IntLocation) {
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65 return newIntLocation(oldLocation.isFinal());
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66 } else if (oldLocation instanceof DoubleLocation) {
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67 return newDoubleLocation(oldLocation.isFinal());
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68 } else if (oldLocation instanceof BooleanLocation) {
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69 return newBooleanLocation(oldLocation.isFinal());
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70 } else if (oldLocation instanceof ObjectLocation) {
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71 return newObjectLocation(oldLocation.isFinal(), ((ObjectLocation) oldLocation).isNonNull());
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72 } else {
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73 assert oldLocation instanceof ValueLocation;
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74 return advance(oldLocation);
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75 }
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76 }
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77
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78 @Override
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79 public Location newObjectLocation(boolean useFinal, boolean nonNull) {
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80 if (ObjectStorageOptions.InObjectFields) {
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81 int insertPos = objectFieldSize;
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82 while (insertPos + OBJECT_SIZE <= getLayout().getObjectFieldCount()) {
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83 return advance((Location) getLayout().getObjectFieldLocation(insertPos));
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84 }
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85 }
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86 return newObjectArrayLocation(useFinal, nonNull);
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87 }
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88
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89 @SuppressWarnings("unused")
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90 private Location newObjectArrayLocation(boolean useFinal, boolean nonNull) {
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91 return advance(new ObjectArrayLocation(objectArraySize, getLayout().getObjectArrayLocation()));
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92 }
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93
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94 @Override
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95 public Location newTypedObjectLocation(boolean useFinal, Class<?> type, boolean nonNull) {
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96 return newObjectLocation(useFinal, nonNull);
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97 }
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98
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99 @Override
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100 public Location newIntLocation(boolean useFinal) {
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101 if (ObjectStorageOptions.PrimitiveLocations && ObjectStorageOptions.IntegerLocations) {
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102 if (ObjectStorageOptions.InObjectFields && primitiveFieldSize + LONG_SIZE <= getLayout().getPrimitiveFieldCount()) {
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103 return advance(new IntLocationDecorator(getLayout().getPrimitiveFieldLocation(primitiveFieldSize)));
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104 } else if (getLayout().hasPrimitiveExtensionArray() && isPrimitiveExtensionArrayAvailable()) {
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105 return advance(new IntLocationDecorator(new LongArrayLocation(primitiveArraySize, getLayout().getPrimitiveArrayLocation())));
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106 }
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107 }
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108 return newObjectLocation(useFinal, true);
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109 }
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110
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111 @Override
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112 public Location newDoubleLocation(boolean useFinal) {
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113 if (ObjectStorageOptions.PrimitiveLocations && ObjectStorageOptions.DoubleLocations) {
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114 if (ObjectStorageOptions.InObjectFields && primitiveFieldSize + LONG_SIZE <= getLayout().getPrimitiveFieldCount()) {
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115 return advance(new DoubleLocationDecorator(getLayout().getPrimitiveFieldLocation(primitiveFieldSize), getLayout().isAllowedIntToDouble()));
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116 } else if (getLayout().hasPrimitiveExtensionArray() && isPrimitiveExtensionArrayAvailable()) {
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117 return advance(new DoubleLocationDecorator(new LongArrayLocation(primitiveArraySize, getLayout().getPrimitiveArrayLocation()), getLayout().isAllowedIntToDouble()));
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118 }
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119 }
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120 return newObjectLocation(useFinal, true);
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121 }
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122
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123 @Override
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124 public Location newLongLocation(boolean useFinal) {
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125 if (ObjectStorageOptions.PrimitiveLocations && ObjectStorageOptions.LongLocations) {
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126 if (ObjectStorageOptions.InObjectFields && primitiveFieldSize + LONG_SIZE <= getLayout().getPrimitiveFieldCount()) {
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127 return advance((Location) LongFieldLocation.create(getLayout().getPrimitiveFieldLocation(primitiveFieldSize), getLayout().isAllowedIntToLong()));
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128 } else if (getLayout().hasPrimitiveExtensionArray() && isPrimitiveExtensionArrayAvailable()) {
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129 return advance(new LongArrayLocation(primitiveArraySize, getLayout().getPrimitiveArrayLocation(), getLayout().isAllowedIntToLong()));
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130 }
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131 }
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132 return newObjectLocation(useFinal, true);
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133 }
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134
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135 @Override
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136 public Location newBooleanLocation(boolean useFinal) {
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137 if (ObjectStorageOptions.PrimitiveLocations && ObjectStorageOptions.BooleanLocations) {
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138 if (primitiveFieldSize + LONG_SIZE <= getLayout().getPrimitiveFieldCount()) {
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139 return advance(new BooleanLocationDecorator(getLayout().getPrimitiveFieldLocation(primitiveFieldSize)));
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140 }
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141 }
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142 return newObjectLocation(useFinal, true);
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143 }
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144
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145 private boolean isPrimitiveExtensionArrayAvailable() {
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146 return hasPrimitiveArray;
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147 }
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148
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149 @Override
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150 protected Location locationForValueUpcast(Object value, Location oldLocation) {
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151 assert !(value instanceof Class);
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152 if (oldLocation instanceof DualLocation) {
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153 DualLocation dualLocation = (DualLocation) oldLocation;
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154 if (dualLocation.getType() == null) {
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155 if (value instanceof Integer) {
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156 return dualLocation.changeType(int.class);
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157 } else if (value instanceof Double) {
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158 return dualLocation.changeType(double.class);
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159 } else if (value instanceof Long) {
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160 return dualLocation.changeType(long.class);
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161 } else if (value instanceof Boolean) {
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162 return dualLocation.changeType(boolean.class);
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163 } else {
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164 return dualLocation.changeType(Object.class);
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165 }
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166 } else if (dualLocation.getType().isPrimitive()) {
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167 return dualLocation.changeType(Object.class);
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168 } else {
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169 throw new UnsupportedOperationException();
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170 }
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171 } else if (oldLocation instanceof ConstantLocation) {
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172 return constantLocation(value);
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173 } else {
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174 throw new UnsupportedOperationException();
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175 }
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176 }
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177
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178 @Override
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179 protected DeclaredDualLocation newDeclaredDualLocation(Object value) {
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180 return new DeclaredDualLocation((InternalLongLocation) newLongLocation(false), (ObjectLocation) newObjectLocation(false, false), value, layout);
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181 }
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182 }