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annotate graal/com.oracle.truffle.object.basic/src/com/oracle/truffle/object/basic/BasicAllocator.java @ 21380:af9d0db304e8
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author | Christian Wimmer <christian.wimmer@oracle.com> |
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date | Thu, 14 May 2015 16:05:02 -0700 |
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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 } |