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annotate truffle/com.oracle.truffle.object.basic/src/com/oracle/truffle/object/basic/DynamicObjectBasic.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 af393429ae26
children
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1 /*
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2 * Copyright (c) 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.DynamicObject;
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26 import com.oracle.truffle.api.object.Shape;
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27 import com.oracle.truffle.object.DynamicObjectImpl;
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28 import com.oracle.truffle.object.ObjectStorageOptions;
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29 import com.oracle.truffle.object.ShapeImpl;
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30 import com.oracle.truffle.object.basic.BasicLocations.SimpleLongFieldLocation;
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31 import com.oracle.truffle.object.basic.BasicLocations.SimpleObjectFieldLocation;
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32 import java.lang.annotation.Retention;
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33 import java.lang.annotation.RetentionPolicy;
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34
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35 public class DynamicObjectBasic extends DynamicObjectImpl {
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36 @Retention(RetentionPolicy.RUNTIME)
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37 protected @interface DynamicField {
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38 }
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39
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40 @DynamicField private long primitive1;
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41 @DynamicField private long primitive2;
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42 @DynamicField private long primitive3;
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43 @DynamicField private Object object1;
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44 @DynamicField private Object object2;
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45 @DynamicField private Object object3;
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46 @DynamicField private Object object4;
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47 private Object[] objext;
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48 private long[] primext;
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49
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50 public DynamicObjectBasic(Shape shape) {
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51 super(shape);
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52 }
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53
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54 @Override
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55 protected final void initialize(Shape shape) {
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56 assert getObjectStore(shape) == null;
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57 int capacity = ((ShapeImpl) shape).getObjectArrayCapacity();
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58 if (capacity != 0) {
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59 this.setObjectStore(new Object[capacity], shape);
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60 }
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61 if (((ShapeImpl) shape).getPrimitiveArrayCapacity() != 0) {
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62 this.setPrimitiveStore(new long[((ShapeImpl) shape).getPrimitiveArrayCapacity()], shape);
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63 }
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64 }
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65
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66 /**
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67 * Simpler version of {@link #resizeObjectStore} when the object is only increasing in size.
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68 */
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69 @Override
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70 protected final void growObjectStore(Shape oldShape, Shape newShape) {
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71 int oldObjectArrayCapacity = ((ShapeImpl) oldShape).getObjectArrayCapacity();
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72 int newObjectArrayCapacity = ((ShapeImpl) newShape).getObjectArrayCapacity();
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73 if (oldObjectArrayCapacity != newObjectArrayCapacity) {
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74 growObjectStoreIntl(oldObjectArrayCapacity, newObjectArrayCapacity, oldShape);
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75 }
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76 }
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77
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78 private void growObjectStoreIntl(int oldObjectArrayCapacity, int newObjectArrayCapacity, Shape newShape) {
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79 Object[] newObjectStore = new Object[newObjectArrayCapacity];
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80 if (oldObjectArrayCapacity != 0) {
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81 // monotonic growth assumption
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82 assert oldObjectArrayCapacity < newObjectArrayCapacity;
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83 Object[] oldObjectStore = this.getObjectStore(newShape);
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84 for (int i = 0; i < oldObjectArrayCapacity; ++i) {
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85 newObjectStore[i] = oldObjectStore[i];
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86 }
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87 }
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88 this.setObjectStore(newObjectStore, newShape);
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89 }
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90
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91 /**
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92 * Simpler version of {@link #resizePrimitiveStore} when the object is only increasing in size.
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93 */
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94 @Override
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95 protected final void growPrimitiveStore(Shape oldShape, Shape newShape) {
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96 assert ((ShapeImpl) newShape).hasPrimitiveArray();
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97 int oldPrimitiveCapacity = ((ShapeImpl) oldShape).getPrimitiveArrayCapacity();
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98 int newPrimitiveCapacity = ((ShapeImpl) newShape).getPrimitiveArrayCapacity();
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99 if (newPrimitiveCapacity == 0) {
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100 // due to obsolescence, we might have to reserve an empty primitive array slot
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101 this.setPrimitiveStore(null, newShape);
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102 } else if (oldPrimitiveCapacity != newPrimitiveCapacity) {
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103 growPrimitiveStoreIntl(oldPrimitiveCapacity, newPrimitiveCapacity, oldShape);
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104 }
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105 }
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106
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107 private void growPrimitiveStoreIntl(int oldPrimitiveCapacity, int newPrimitiveCapacity, Shape newShape) {
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108 long[] newPrimitiveArray = new long[newPrimitiveCapacity];
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109 if (oldPrimitiveCapacity != 0) {
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110 // primitive array can shrink due to type changes
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111 long[] oldPrimitiveArray = this.getPrimitiveStore(newShape);
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112 for (int i = 0; i < Math.min(oldPrimitiveCapacity, newPrimitiveCapacity); ++i) {
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113 newPrimitiveArray[i] = oldPrimitiveArray[i];
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114 }
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115 }
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116 this.setPrimitiveStore(newPrimitiveArray, newShape);
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117 }
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118
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119 @Override
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120 protected final void resizeObjectStore(Shape oldShape, Shape newShape) {
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121 Object[] newObjectStore = null;
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122 int destinationCapacity = ((ShapeImpl) newShape).getObjectArrayCapacity();
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123 if (destinationCapacity != 0) {
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124 newObjectStore = new Object[destinationCapacity];
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125 int sourceCapacity = ((ShapeImpl) oldShape).getObjectArrayCapacity();
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126 if (sourceCapacity != 0) {
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127 Object[] oldObjectStore = getObjectStore(newShape);
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128 for (int i = 0; i < Math.min(sourceCapacity, destinationCapacity); ++i) {
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129 newObjectStore[i] = oldObjectStore[i];
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130 }
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131 }
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132 }
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133 this.setObjectStore(newObjectStore, newShape);
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134 }
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135
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136 private Object[] getObjectStore(@SuppressWarnings("unused") Shape currentShape) {
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137 return objext;
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138 }
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139
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140 private void setObjectStore(Object[] newArray, @SuppressWarnings("unused") Shape currentShape) {
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141 objext = newArray;
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142 }
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143
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144 private long[] getPrimitiveStore(@SuppressWarnings("unused") Shape currentShape) {
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145 return primext;
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146 }
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147
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148 private void setPrimitiveStore(long[] newArray, @SuppressWarnings("unused") Shape currentShape) {
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149 primext = newArray;
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150 }
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151
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152 @Override
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153 protected final void resizePrimitiveStore(Shape oldShape, Shape newShape) {
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154 assert ((ShapeImpl) newShape).hasPrimitiveArray();
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155 long[] newPrimitiveArray = null;
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156 int destinationCapacity = ((ShapeImpl) newShape).getPrimitiveArrayCapacity();
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157 if (destinationCapacity != 0) {
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158 newPrimitiveArray = new long[destinationCapacity];
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159 int sourceCapacity = ((ShapeImpl) oldShape).getPrimitiveArrayCapacity();
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160 if (sourceCapacity != 0) {
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161 long[] oldPrimitiveArray = this.getPrimitiveStore(newShape);
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162 for (int i = 0; i < Math.min(sourceCapacity, destinationCapacity); ++i) {
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163 newPrimitiveArray[i] = oldPrimitiveArray[i];
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164 }
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165 }
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166 }
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167 this.setPrimitiveStore(newPrimitiveArray, newShape);
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168 }
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169
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170 /**
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171 * Check whether fast transition is valid.
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172 *
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173 * @see #setShapeAndGrow
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174 */
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175 @SuppressWarnings("unused")
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176 private boolean checkSetShape(Shape oldShape, Shape newShape) {
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177 Shape currentShape = getShape();
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178 assert oldShape != newShape : "Wrong old shape assumption?";
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179 assert newShape != currentShape : "Redundant shape change? shape=" + currentShape;
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180 assert oldShape == currentShape || oldShape.getParent() == currentShape : "Out-of-order shape change?" + "\nparentShape=" + currentShape + "\noldShape=" + oldShape + "\nnewShape=" + newShape;
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181 return true;
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182 }
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183
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184 /**
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185 * Check whether the extension arrays are in accordance with the description in the shape.
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186 */
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187 @Override
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188 protected final boolean checkExtensionArrayInvariants(Shape newShape) {
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189 assert getShape() == newShape;
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190 assert (getObjectStore(newShape) == null && ((ShapeImpl) newShape).getObjectArrayCapacity() == 0) ||
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191 (getObjectStore(newShape) != null && getObjectStore(newShape).length == ((ShapeImpl) newShape).getObjectArrayCapacity());
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192 if (((ShapeImpl) newShape).hasPrimitiveArray()) {
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193 assert (getPrimitiveStore(newShape) == null && ((ShapeImpl) newShape).getPrimitiveArrayCapacity() == 0) ||
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194 (getPrimitiveStore(newShape) != null && getPrimitiveStore(newShape).length == ((ShapeImpl) newShape).getPrimitiveArrayCapacity());
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195 }
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196 return true;
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197 }
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198
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199 @Override
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200 protected final DynamicObject cloneWithShape(Shape currentShape) {
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201 assert this.getShape() == currentShape;
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202 final DynamicObjectBasic clone = (DynamicObjectBasic) super.clone();
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203 if (this.getObjectStore(currentShape) != null) {
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204 clone.setObjectStore(this.getObjectStore(currentShape).clone(), currentShape);
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205 }
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206 if (((ShapeImpl) currentShape).hasPrimitiveArray() && this.getPrimitiveStore(currentShape) != null) {
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207 clone.setPrimitiveStore(this.getPrimitiveStore(currentShape).clone(), currentShape);
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208 }
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209 return clone;
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210 }
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211
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212 protected final void reshape(ShapeImpl newShape) {
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213 reshapeCount.inc();
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214
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215 ShapeImpl oldShape = getShape();
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216 ShapeImpl commonAncestor = ShapeImpl.findCommonAncestor(oldShape, newShape);
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217 if (ObjectStorageOptions.TraceReshape) {
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218 int limit = 150;
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219 System.out.printf("RESHAPE\nOLD %s\nNEW %s\nLCA %s\nDIFF %s\n---\n", oldShape.toStringLimit(limit), newShape.toStringLimit(limit), commonAncestor.toStringLimit(limit),
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220 ShapeImpl.diff(oldShape, newShape));
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221 }
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222
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223 DynamicObject original = this.cloneWithShape(oldShape);
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224 setShapeAndGrow(oldShape, newShape);
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225 assert !((newShape.hasPrimitiveArray() && newShape.getPrimitiveArrayCapacity() == 0)) || getPrimitiveStore(newShape) == null;
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226 copyProperties(original, commonAncestor);
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227 assert checkExtensionArrayInvariants(newShape);
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228 }
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229
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230 static final SimpleObjectFieldLocation[] OBJECT_FIELD_LOCATIONS;
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231 static final SimpleLongFieldLocation[] PRIMITIVE_FIELD_LOCATIONS;
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232
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233 static final SimpleObjectFieldLocation OBJECT_ARRAY_LOCATION;
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234 static final SimpleObjectFieldLocation PRIMITIVE_ARRAY_LOCATION;
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235
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236 static {
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237 int index;
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238
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239 index = 0;
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240 PRIMITIVE_FIELD_LOCATIONS = new SimpleLongFieldLocation[]{new SimpleLongFieldLocation(index++) {
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241 @Override
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242 public long getLong(DynamicObject store, boolean condition) {
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243 return ((DynamicObjectBasic) store).primitive1;
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244 }
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245
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246 @Override
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247 public void setLongInternal(DynamicObject store, long value) {
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248 ((DynamicObjectBasic) store).primitive1 = value;
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249 }
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250 }, new SimpleLongFieldLocation(index++) {
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251 @Override
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252 public long getLong(DynamicObject store, boolean condition) {
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253 return ((DynamicObjectBasic) store).primitive2;
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254 }
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255
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256 @Override
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257 public void setLongInternal(DynamicObject store, long value) {
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258 ((DynamicObjectBasic) store).primitive2 = value;
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259 }
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260 }, new SimpleLongFieldLocation(index++) {
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261 @Override
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262 public long getLong(DynamicObject store, boolean condition) {
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263 return ((DynamicObjectBasic) store).primitive3;
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264 }
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265
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266 @Override
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267 public void setLongInternal(DynamicObject store, long value) {
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268 ((DynamicObjectBasic) store).primitive3 = value;
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269 }
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270 }};
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271
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272 index = 0;
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273 OBJECT_FIELD_LOCATIONS = new SimpleObjectFieldLocation[]{new SimpleObjectFieldLocation(index++) {
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274 @Override
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275 public Object get(DynamicObject store, boolean condition) {
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276 return ((DynamicObjectBasic) store).object1;
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277 }
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278
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279 @Override
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280 public void setInternal(DynamicObject store, Object value) {
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281 ((DynamicObjectBasic) store).object1 = value;
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282 }
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283 }, new SimpleObjectFieldLocation(index++) {
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284 @Override
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285 public Object get(DynamicObject store, boolean condition) {
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286 return ((DynamicObjectBasic) store).object2;
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287 }
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288
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289 @Override
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290 public void setInternal(DynamicObject store, Object value) {
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291 ((DynamicObjectBasic) store).object2 = value;
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292 }
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293 }, new SimpleObjectFieldLocation(index++) {
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294 @Override
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295 public Object get(DynamicObject store, boolean condition) {
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296 return ((DynamicObjectBasic) store).object3;
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297 }
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298
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299 @Override
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300 public void setInternal(DynamicObject store, Object value) {
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301 ((DynamicObjectBasic) store).object3 = value;
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302 }
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303 }, new SimpleObjectFieldLocation(index++) {
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304 @Override
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305 public Object get(DynamicObject store, boolean condition) {
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306 return ((DynamicObjectBasic) store).object4;
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307 }
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308
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309 @Override
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310 public void setInternal(DynamicObject store, Object value) {
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311 ((DynamicObjectBasic) store).object4 = value;
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312 }
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313 }};
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314
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315 OBJECT_ARRAY_LOCATION = new SimpleObjectFieldLocation(index++) {
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316 @Override
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317 public Object[] get(DynamicObject store, boolean condition) {
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318 return ((DynamicObjectBasic) store).objext;
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319 }
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320
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321 @Override
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322 public void setInternal(DynamicObject store, Object value) {
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323 ((DynamicObjectBasic) store).objext = (Object[]) value;
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324 }
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325 };
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326
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327 PRIMITIVE_ARRAY_LOCATION = new SimpleObjectFieldLocation(index++) {
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328 @Override
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329 public long[] get(DynamicObject store, boolean condition) {
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330 return ((DynamicObjectBasic) store).primext;
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331 }
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332
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333 @Override
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334 public void setInternal(DynamicObject store, Object value) {
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335 ((DynamicObjectBasic) store).primext = (long[]) value;
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336 }
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337 };
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338 }
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339 }