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annotate truffle/com.oracle.truffle.object.basic/src/com/oracle/truffle/object/basic/BasicAllocator.java @ 22157:dc83cc1f94f2

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Using fully qualified imports
author Jaroslav Tulach <jaroslav.tulach@oracle.com>
date Wed, 16 Sep 2015 11:33:22 +0200
parents 9c8c0937da41
children
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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 com.oracle.truffle.api.object.BooleanLocation;
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26 import com.oracle.truffle.api.object.DoubleLocation;
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27 import com.oracle.truffle.api.object.IntLocation;
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28 import com.oracle.truffle.api.object.Location;
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29 import com.oracle.truffle.api.object.LongLocation;
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30 import com.oracle.truffle.api.object.ObjectLocation;
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31 import com.oracle.truffle.object.LayoutImpl;
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32 import com.oracle.truffle.object.LocationImpl.InternalLongLocation;
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33 import com.oracle.truffle.object.Locations.ConstantLocation;
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34 import com.oracle.truffle.object.Locations.DeclaredDualLocation;
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35 import com.oracle.truffle.object.Locations.DualLocation;
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36 import com.oracle.truffle.object.Locations.ValueLocation;
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37 import com.oracle.truffle.object.ObjectStorageOptions;
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38 import com.oracle.truffle.object.ShapeImpl;
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39 import com.oracle.truffle.object.basic.BasicLocations.BooleanLocationDecorator;
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40 import com.oracle.truffle.object.basic.BasicLocations.DoubleLocationDecorator;
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41 import com.oracle.truffle.object.basic.BasicLocations.IntLocationDecorator;
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42 import static com.oracle.truffle.object.basic.BasicLocations.LONG_SIZE;
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43 import com.oracle.truffle.object.basic.BasicLocations.LongArrayLocation;
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44 import com.oracle.truffle.object.basic.BasicLocations.LongFieldLocation;
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45 import static com.oracle.truffle.object.basic.BasicLocations.OBJECT_SIZE;
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46 import com.oracle.truffle.object.basic.BasicLocations.ObjectArrayLocation;
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47
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48 public abstract class BasicAllocator extends ShapeImpl.BaseAllocator {
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49
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50 public BasicAllocator(LayoutImpl layout) {
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51 super(layout);
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52 advance(((BasicLayout) layout).getPrimitiveArrayLocation());
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53 }
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54
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55 public BasicAllocator(ShapeImpl shape) {
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56 super(shape);
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57 }
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58
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59 private BasicLayout getLayout() {
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60 return (BasicLayout) layout;
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61 }
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62
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63 @Override
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64 protected Location moveLocation(Location oldLocation) {
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65 if (oldLocation instanceof DeclaredDualLocation) {
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66 return advance(newDeclaredDualLocation(((DeclaredDualLocation) oldLocation).get(null, false)));
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67 } else if (oldLocation instanceof DualLocation) {
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68 return advance(newDualLocation(((DualLocation) oldLocation).getType()));
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69 } else if (oldLocation instanceof LongLocation) {
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70 return newLongLocation(oldLocation.isFinal());
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71 } else if (oldLocation instanceof IntLocation) {
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72 return newIntLocation(oldLocation.isFinal());
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73 } else if (oldLocation instanceof DoubleLocation) {
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74 return newDoubleLocation(oldLocation.isFinal());
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75 } else if (oldLocation instanceof BooleanLocation) {
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76 return newBooleanLocation(oldLocation.isFinal());
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77 } else if (oldLocation instanceof ObjectLocation) {
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78 return newObjectLocation(oldLocation.isFinal(), ((ObjectLocation) oldLocation).isNonNull());
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79 } else {
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80 assert oldLocation instanceof ValueLocation;
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81 return advance(oldLocation);
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82 }
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83 }
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84
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85 @Override
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86 public Location newObjectLocation(boolean useFinal, boolean nonNull) {
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87 if (ObjectStorageOptions.InObjectFields) {
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88 int insertPos = objectFieldSize;
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89 while (insertPos + OBJECT_SIZE <= getLayout().getObjectFieldCount()) {
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90 return advance((Location) getLayout().getObjectFieldLocation(insertPos));
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91 }
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92 }
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93 return newObjectArrayLocation(useFinal, nonNull);
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94 }
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95
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96 @SuppressWarnings("unused")
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97 private Location newObjectArrayLocation(boolean useFinal, boolean nonNull) {
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98 return advance(new ObjectArrayLocation(objectArraySize, getLayout().getObjectArrayLocation()));
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99 }
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100
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101 @Override
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102 public Location newTypedObjectLocation(boolean useFinal, Class<?> type, boolean nonNull) {
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103 return newObjectLocation(useFinal, nonNull);
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104 }
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105
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106 @Override
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107 public Location newIntLocation(boolean useFinal) {
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108 if (ObjectStorageOptions.PrimitiveLocations && ObjectStorageOptions.IntegerLocations) {
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109 if (ObjectStorageOptions.InObjectFields && primitiveFieldSize + LONG_SIZE <= getLayout().getPrimitiveFieldCount()) {
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110 return advance(new IntLocationDecorator(getLayout().getPrimitiveFieldLocation(primitiveFieldSize)));
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111 } else if (getLayout().hasPrimitiveExtensionArray() && isPrimitiveExtensionArrayAvailable()) {
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112 return advance(new IntLocationDecorator(new LongArrayLocation(primitiveArraySize, getLayout().getPrimitiveArrayLocation())));
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113 }
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114 }
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115 return newObjectLocation(useFinal, true);
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116 }
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117
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118 @Override
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119 public Location newDoubleLocation(boolean useFinal) {
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120 if (ObjectStorageOptions.PrimitiveLocations && ObjectStorageOptions.DoubleLocations) {
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121 if (ObjectStorageOptions.InObjectFields && primitiveFieldSize + LONG_SIZE <= getLayout().getPrimitiveFieldCount()) {
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122 return advance(new DoubleLocationDecorator(getLayout().getPrimitiveFieldLocation(primitiveFieldSize), getLayout().isAllowedIntToDouble()));
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123 } else if (getLayout().hasPrimitiveExtensionArray() && isPrimitiveExtensionArrayAvailable()) {
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124 return advance(new DoubleLocationDecorator(new LongArrayLocation(primitiveArraySize, getLayout().getPrimitiveArrayLocation()), getLayout().isAllowedIntToDouble()));
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125 }
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126 }
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127 return newObjectLocation(useFinal, true);
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128 }
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129
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130 @Override
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131 public Location newLongLocation(boolean useFinal) {
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132 if (ObjectStorageOptions.PrimitiveLocations && ObjectStorageOptions.LongLocations) {
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133 if (ObjectStorageOptions.InObjectFields && primitiveFieldSize + LONG_SIZE <= getLayout().getPrimitiveFieldCount()) {
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134 return advance((Location) LongFieldLocation.create(getLayout().getPrimitiveFieldLocation(primitiveFieldSize), getLayout().isAllowedIntToLong()));
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135 } else if (getLayout().hasPrimitiveExtensionArray() && isPrimitiveExtensionArrayAvailable()) {
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136 return advance(new LongArrayLocation(primitiveArraySize, getLayout().getPrimitiveArrayLocation(), getLayout().isAllowedIntToLong()));
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137 }
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138 }
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139 return newObjectLocation(useFinal, true);
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140 }
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141
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142 @Override
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143 public Location newBooleanLocation(boolean useFinal) {
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144 if (ObjectStorageOptions.PrimitiveLocations && ObjectStorageOptions.BooleanLocations) {
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145 if (primitiveFieldSize + LONG_SIZE <= getLayout().getPrimitiveFieldCount()) {
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146 return advance(new BooleanLocationDecorator(getLayout().getPrimitiveFieldLocation(primitiveFieldSize)));
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147 }
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148 }
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149 return newObjectLocation(useFinal, true);
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150 }
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151
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152 private boolean isPrimitiveExtensionArrayAvailable() {
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153 return hasPrimitiveArray;
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154 }
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155
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156 @Override
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157 protected Location locationForValueUpcast(Object value, Location oldLocation) {
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158 assert !(value instanceof Class);
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159 if (oldLocation instanceof DualLocation) {
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160 DualLocation dualLocation = (DualLocation) oldLocation;
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161 if (dualLocation.getType() == null) {
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162 if (value instanceof Integer) {
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163 return dualLocation.changeType(int.class);
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164 } else if (value instanceof Double) {
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165 return dualLocation.changeType(double.class);
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166 } else if (value instanceof Long) {
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167 return dualLocation.changeType(long.class);
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168 } else if (value instanceof Boolean) {
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169 return dualLocation.changeType(boolean.class);
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170 } else {
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171 return dualLocation.changeType(Object.class);
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172 }
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173 } else if (dualLocation.getType().isPrimitive()) {
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174 return dualLocation.changeType(Object.class);
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175 } else {
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176 throw new UnsupportedOperationException();
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177 }
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178 } else if (oldLocation instanceof ConstantLocation) {
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179 return constantLocation(value);
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180 } else {
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181 throw new UnsupportedOperationException();
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182 }
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183 }
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184
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185 @Override
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186 protected DeclaredDualLocation newDeclaredDualLocation(Object value) {
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187 return new DeclaredDualLocation((InternalLongLocation) newLongLocation(false), (ObjectLocation) newObjectLocation(false, false), value, layout);
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188 }
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189 }