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annotate graal/com.oracle.truffle.object.basic/src/com/oracle/truffle/object/basic/DynamicObjectBasic.java @ 21554:b1530a6cce8c

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renamed com.oracle.graal.[debug|options|hotspotvmconfig]* modules to com.oracle.jvmci.[debug|options|hotspotvmconfig]* modules (JBS:GRAAL-53)
author Doug Simon <doug.simon@oracle.com>
date Tue, 26 May 2015 23:21:15 +0200
parents 2c3666f44855
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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 java.lang.annotation.*;
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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.basic.BasicLocations.SimpleLongFieldLocation;
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30 import com.oracle.truffle.object.basic.BasicLocations.SimpleObjectFieldLocation;
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31
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32 public class DynamicObjectBasic extends DynamicObjectImpl {
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33 @Retention(RetentionPolicy.RUNTIME)
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34 protected @interface DynamicField {
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35 }
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36
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37 @DynamicField private long primitive1;
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38 @DynamicField private long primitive2;
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39 @DynamicField private long primitive3;
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40 @DynamicField private Object object1;
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41 @DynamicField private Object object2;
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42 @DynamicField private Object object3;
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43 @DynamicField private Object object4;
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44 private Object[] objext;
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45 private long[] primext;
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46
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47 public DynamicObjectBasic(Shape shape) {
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48 super(shape);
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49 }
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50
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51 @Override
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52 protected final void initialize(Shape shape) {
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53 assert getObjectStore(shape) == null;
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54 int capacity = ((ShapeImpl) shape).getObjectArrayCapacity();
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55 if (capacity != 0) {
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56 this.setObjectStore(new Object[capacity], shape);
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57 }
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58 if (((ShapeImpl) shape).getPrimitiveArrayCapacity() != 0) {
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59 this.setPrimitiveStore(new long[((ShapeImpl) shape).getPrimitiveArrayCapacity()], shape);
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60 }
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61 }
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62
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63 /**
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64 * Simpler version of {@link #resizeObjectStore} when the object is only increasing in size.
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65 */
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66 @Override
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67 protected final void growObjectStore(Shape oldShape, Shape newShape) {
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68 int oldObjectArrayCapacity = ((ShapeImpl) oldShape).getObjectArrayCapacity();
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69 int newObjectArrayCapacity = ((ShapeImpl) newShape).getObjectArrayCapacity();
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70 if (oldObjectArrayCapacity != newObjectArrayCapacity) {
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71 growObjectStoreIntl(oldObjectArrayCapacity, newObjectArrayCapacity, oldShape);
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72 }
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73 }
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74
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75 private void growObjectStoreIntl(int oldObjectArrayCapacity, int newObjectArrayCapacity, Shape newShape) {
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76 Object[] newObjectStore = new Object[newObjectArrayCapacity];
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77 if (oldObjectArrayCapacity != 0) {
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78 // monotonic growth assumption
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79 assert oldObjectArrayCapacity < newObjectArrayCapacity;
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80 Object[] oldObjectStore = this.getObjectStore(newShape);
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81 for (int i = 0; i < oldObjectArrayCapacity; ++i) {
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82 newObjectStore[i] = oldObjectStore[i];
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83 }
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84 }
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85 this.setObjectStore(newObjectStore, newShape);
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86 }
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87
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88 /**
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89 * Simpler version of {@link #resizePrimitiveStore} when the object is only increasing in size.
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90 */
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91 @Override
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92 protected final void growPrimitiveStore(Shape oldShape, Shape newShape) {
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93 assert ((ShapeImpl) newShape).hasPrimitiveArray();
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94 int oldPrimitiveCapacity = oldShape.getPrimitiveArrayCapacity();
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95 int newPrimitiveCapacity = newShape.getPrimitiveArrayCapacity();
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96 if (newPrimitiveCapacity == 0) {
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97 // due to obsolescence, we might have to reserve an empty primitive array slot
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98 this.setPrimitiveStore(null, newShape);
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99 } else if (oldPrimitiveCapacity != newPrimitiveCapacity) {
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100 growPrimitiveStoreIntl(oldPrimitiveCapacity, newPrimitiveCapacity, oldShape);
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101 }
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102 }
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103
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104 private void growPrimitiveStoreIntl(int oldPrimitiveCapacity, int newPrimitiveCapacity, Shape newShape) {
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105 long[] newPrimitiveArray = new long[newPrimitiveCapacity];
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106 if (oldPrimitiveCapacity != 0) {
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107 // primitive array can shrink due to type changes
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108 long[] oldPrimitiveArray = this.getPrimitiveStore(newShape);
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109 for (int i = 0; i < Math.min(oldPrimitiveCapacity, newPrimitiveCapacity); ++i) {
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110 newPrimitiveArray[i] = oldPrimitiveArray[i];
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111 }
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112 }
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113 this.setPrimitiveStore(newPrimitiveArray, newShape);
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114 }
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115
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116 @Override
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117 protected final void resizeObjectStore(Shape oldShape, Shape newShape) {
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118 Object[] newObjectStore = null;
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119 int destinationCapacity = newShape.getObjectArrayCapacity();
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120 if (destinationCapacity != 0) {
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121 newObjectStore = new Object[destinationCapacity];
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122 int sourceCapacity = oldShape.getObjectArrayCapacity();
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123 if (sourceCapacity != 0) {
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124 Object[] oldObjectStore = getObjectStore(newShape);
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125 for (int i = 0; i < Math.min(sourceCapacity, destinationCapacity); ++i) {
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126 newObjectStore[i] = oldObjectStore[i];
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127 }
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128 }
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129 }
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130 this.setObjectStore(newObjectStore, newShape);
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131 }
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132
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133 private Object[] getObjectStore(@SuppressWarnings("unused") Shape currentShape) {
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134 return objext;
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135 }
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136
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137 private void setObjectStore(Object[] newArray, @SuppressWarnings("unused") Shape currentShape) {
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138 objext = newArray;
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139 }
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140
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141 private long[] getPrimitiveStore(@SuppressWarnings("unused") Shape currentShape) {
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142 return primext;
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143 }
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144
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145 private void setPrimitiveStore(long[] newArray, @SuppressWarnings("unused") Shape currentShape) {
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146 primext = newArray;
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147 }
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148
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149 @Override
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150 protected final void resizePrimitiveStore(Shape oldShape, Shape newShape) {
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151 assert newShape.hasPrimitiveArray();
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152 long[] newPrimitiveArray = null;
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153 int destinationCapacity = newShape.getPrimitiveArrayCapacity();
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154 if (destinationCapacity != 0) {
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155 newPrimitiveArray = new long[destinationCapacity];
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156 int sourceCapacity = oldShape.getPrimitiveArrayCapacity();
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157 if (sourceCapacity != 0) {
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158 long[] oldPrimitiveArray = this.getPrimitiveStore(newShape);
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159 for (int i = 0; i < Math.min(sourceCapacity, destinationCapacity); ++i) {
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160 newPrimitiveArray[i] = oldPrimitiveArray[i];
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161 }
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162 }
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163 }
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164 this.setPrimitiveStore(newPrimitiveArray, newShape);
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165 }
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166
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167 /**
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168 * Check whether fast transition is valid.
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169 *
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170 * @see #setShapeAndGrow
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171 */
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172 @SuppressWarnings("unused")
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173 private boolean checkSetShape(Shape oldShape, Shape newShape) {
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174 Shape currentShape = getShape();
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175 assert oldShape != newShape : "Wrong old shape assumption?";
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176 assert newShape != currentShape : "Redundant shape change? shape=" + currentShape;
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177 assert oldShape == currentShape || oldShape.getParent() == currentShape : "Out-of-order shape change?" + "\nparentShape=" + currentShape + "\noldShape=" + oldShape + "\nnewShape=" + newShape;
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178 return true;
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179 }
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180
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181 /**
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182 * Check whether the extension arrays are in accordance with the description in the shape.
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183 */
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184 @Override
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185 protected final boolean checkExtensionArrayInvariants(Shape newShape) {
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186 assert getShape() == newShape;
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187 assert (getObjectStore(newShape) == null && newShape.getObjectArrayCapacity() == 0) ||
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188 (getObjectStore(newShape) != null && getObjectStore(newShape).length == newShape.getObjectArrayCapacity());
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189 if (newShape.hasPrimitiveArray()) {
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190 assert (getPrimitiveStore(newShape) == null && newShape.getPrimitiveArrayCapacity() == 0) ||
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191 (getPrimitiveStore(newShape) != null && getPrimitiveStore(newShape).length == newShape.getPrimitiveArrayCapacity());
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192 }
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193 return true;
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194 }
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195
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196 @Override
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197 protected final DynamicObject cloneWithShape(Shape currentShape) {
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198 assert this.getShape() == currentShape;
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199 final DynamicObjectBasic clone = (DynamicObjectBasic) super.clone();
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200 if (this.getObjectStore(currentShape) != null) {
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201 clone.setObjectStore(this.getObjectStore(currentShape).clone(), currentShape);
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202 }
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203 if (currentShape.hasPrimitiveArray() && this.getPrimitiveStore(currentShape) != null) {
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204 clone.setPrimitiveStore(this.getPrimitiveStore(currentShape).clone(), currentShape);
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205 }
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206 return clone;
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207 }
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208
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209 protected final void reshape(ShapeImpl newShape) {
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210 reshapeCount.inc();
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211
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212 ShapeImpl oldShape = getShape();
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213 ShapeImpl commonAncestor = ShapeImpl.findCommonAncestor(oldShape, newShape);
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214 if (ObjectStorageOptions.TraceReshape) {
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215 int limit = 150;
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216 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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217 ShapeImpl.diff(oldShape, newShape));
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218 }
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219
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220 DynamicObject original = this.cloneWithShape(oldShape);
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221 setShapeAndGrow(oldShape, newShape);
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222 assert !((newShape.hasPrimitiveArray() && newShape.getPrimitiveArrayCapacity() == 0)) || getPrimitiveStore(newShape) == null;
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223 copyProperties(original, commonAncestor);
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224 assert checkExtensionArrayInvariants(newShape);
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225 }
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226
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227 static final SimpleObjectFieldLocation[] OBJECT_FIELD_LOCATIONS;
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228 static final SimpleLongFieldLocation[] PRIMITIVE_FIELD_LOCATIONS;
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229
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230 static final SimpleObjectFieldLocation OBJECT_ARRAY_LOCATION;
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231 static final SimpleObjectFieldLocation PRIMITIVE_ARRAY_LOCATION;
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232
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233 static {
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234 int index;
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235
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236 index = 0;
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237 PRIMITIVE_FIELD_LOCATIONS = new SimpleLongFieldLocation[]{new SimpleLongFieldLocation(index++) {
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238 @Override
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239 public long getLong(DynamicObject store, boolean condition) {
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240 return ((DynamicObjectBasic) store).primitive1;
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241 }
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242
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243 @Override
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244 public void setLongInternal(DynamicObject store, long value) {
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245 ((DynamicObjectBasic) store).primitive1 = value;
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246 }
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247 }, new SimpleLongFieldLocation(index++) {
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248 @Override
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249 public long getLong(DynamicObject store, boolean condition) {
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250 return ((DynamicObjectBasic) store).primitive2;
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251 }
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252
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253 @Override
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254 public void setLongInternal(DynamicObject store, long value) {
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255 ((DynamicObjectBasic) store).primitive2 = value;
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256 }
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257 }, new SimpleLongFieldLocation(index++) {
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258 @Override
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259 public long getLong(DynamicObject store, boolean condition) {
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260 return ((DynamicObjectBasic) store).primitive3;
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261 }
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262
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263 @Override
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264 public void setLongInternal(DynamicObject store, long value) {
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265 ((DynamicObjectBasic) store).primitive3 = value;
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266 }
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267 }};
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268
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269 index = 0;
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270 OBJECT_FIELD_LOCATIONS = new SimpleObjectFieldLocation[]{new SimpleObjectFieldLocation(index++) {
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271 @Override
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272 public Object get(DynamicObject store, boolean condition) {
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273 return ((DynamicObjectBasic) store).object1;
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274 }
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275
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276 @Override
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277 public void setInternal(DynamicObject store, Object value) {
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278 ((DynamicObjectBasic) store).object1 = value;
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279 }
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280 }, new SimpleObjectFieldLocation(index++) {
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281 @Override
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282 public Object get(DynamicObject store, boolean condition) {
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283 return ((DynamicObjectBasic) store).object2;
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284 }
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285
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286 @Override
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287 public void setInternal(DynamicObject store, Object value) {
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288 ((DynamicObjectBasic) store).object2 = value;
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289 }
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290 }, new SimpleObjectFieldLocation(index++) {
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291 @Override
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292 public Object get(DynamicObject store, boolean condition) {
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293 return ((DynamicObjectBasic) store).object3;
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294 }
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295
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296 @Override
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297 public void setInternal(DynamicObject store, Object value) {
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298 ((DynamicObjectBasic) store).object3 = value;
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299 }
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300 }, new SimpleObjectFieldLocation(index++) {
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301 @Override
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302 public Object get(DynamicObject store, boolean condition) {
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303 return ((DynamicObjectBasic) store).object4;
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304 }
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305
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306 @Override
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307 public void setInternal(DynamicObject store, Object value) {
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308 ((DynamicObjectBasic) store).object4 = value;
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309 }
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310 }};
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311
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312 OBJECT_ARRAY_LOCATION = new SimpleObjectFieldLocation(index++) {
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313 @Override
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314 public Object[] get(DynamicObject store, boolean condition) {
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315 return ((DynamicObjectBasic) store).objext;
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316 }
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317
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318 @Override
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319 public void setInternal(DynamicObject store, Object value) {
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320 ((DynamicObjectBasic) store).objext = (Object[]) value;
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321 }
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322 };
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323
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324 PRIMITIVE_ARRAY_LOCATION = new SimpleObjectFieldLocation(index++) {
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325 @Override
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326 public long[] get(DynamicObject store, boolean condition) {
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327 return ((DynamicObjectBasic) store).primext;
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328 }
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329
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330 @Override
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331 public void setInternal(DynamicObject store, Object value) {
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332 ((DynamicObjectBasic) store).primext = (long[]) value;
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333 }
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334 };
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335 }
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336 }