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annotate truffle/com.oracle.truffle.object.basic/src/com/oracle/truffle/object/basic/BasicLayout.java @ 22157:dc83cc1f94f2
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author | Jaroslav Tulach <jaroslav.tulach@oracle.com> |
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date | Wed, 16 Sep 2015 11:33:22 +0200 |
parents | 9c8c0937da41 |
children | 8bc57c7bbf88 |
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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.DynamicObject; |
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26 import com.oracle.truffle.api.object.Location; |
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27 import com.oracle.truffle.api.object.ObjectLocation; |
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28 import com.oracle.truffle.api.object.ObjectType; |
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29 import com.oracle.truffle.api.object.Shape; |
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30 import com.oracle.truffle.api.object.Shape.Allocator; |
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31 import com.oracle.truffle.object.LayoutImpl; |
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32 import com.oracle.truffle.object.LayoutStrategy; |
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33 import com.oracle.truffle.object.LocationImpl.InternalLongLocation; |
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34 import com.oracle.truffle.object.Locations.DualLocation; |
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35 import com.oracle.truffle.object.basic.BasicLocations.ObjectFieldLocation; |
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36 import com.oracle.truffle.object.basic.BasicLocations.SimpleObjectFieldLocation; |
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37 import java.util.EnumSet; |
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38 |
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39 public class BasicLayout extends LayoutImpl { |
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40 private final ObjectLocation[] objectFields; |
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41 private final InternalLongLocation[] primitiveFields; |
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42 private final Location objectArrayLocation; |
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43 private final Location primitiveArrayLocation; |
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44 |
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45 BasicLayout(EnumSet<ImplicitCast> allowedImplicitCasts, LayoutStrategy strategy) { |
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46 super(allowedImplicitCasts, DynamicObjectBasic.class, strategy); |
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47 this.objectFields = DynamicObjectBasic.OBJECT_FIELD_LOCATIONS; |
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48 this.primitiveFields = DynamicObjectBasic.PRIMITIVE_FIELD_LOCATIONS; |
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49 this.primitiveArrayLocation = DynamicObjectBasic.PRIMITIVE_ARRAY_LOCATION; |
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50 this.objectArrayLocation = DynamicObjectBasic.OBJECT_ARRAY_LOCATION; |
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51 } |
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52 |
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53 static LayoutImpl createLayoutImpl(EnumSet<ImplicitCast> allowedImplicitCasts, LayoutStrategy strategy) { |
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54 return new BasicLayout(allowedImplicitCasts, strategy); |
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55 } |
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56 |
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57 @Override |
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58 public DynamicObject newInstance(Shape shape) { |
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59 return new DynamicObjectBasic(shape); |
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60 } |
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61 |
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62 @Override |
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63 public Shape createShape(ObjectType operations, Object sharedData, int id) { |
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64 return new ShapeBasic(this, sharedData, operations, id); |
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65 } |
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66 |
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67 @Override |
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68 protected boolean hasObjectExtensionArray() { |
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69 return true; |
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70 } |
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71 |
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72 @Override |
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73 protected boolean hasPrimitiveExtensionArray() { |
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74 return true; |
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75 } |
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76 |
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77 @Override |
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78 protected int getObjectFieldCount() { |
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79 return objectFields.length; |
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80 } |
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81 |
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82 @Override |
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83 protected int getPrimitiveFieldCount() { |
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84 return primitiveFields.length; |
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85 } |
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86 |
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87 @Override |
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88 protected Location getObjectArrayLocation() { |
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89 return objectArrayLocation; |
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90 } |
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91 |
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92 @Override |
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93 protected Location getPrimitiveArrayLocation() { |
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94 return primitiveArrayLocation; |
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95 } |
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96 |
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97 protected ObjectLocation getObjectFieldLocation(int index) { |
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98 return objectFields[index]; |
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99 } |
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100 |
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101 protected InternalLongLocation getPrimitiveFieldLocation(int index) { |
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102 return primitiveFields[index]; |
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103 } |
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104 |
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105 @Override |
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106 public Allocator createAllocator() { |
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107 LayoutImpl layout = this; |
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108 Allocator allocator = getStrategy().createAllocator(layout); |
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109 return allocator; |
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110 } |
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111 |
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112 @Override |
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113 protected int objectFieldIndex(Location location) { |
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114 if (location instanceof DualLocation) { |
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115 return objectFieldIndex((Location) ((DualLocation) location).getObjectLocation()); |
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116 } else if (location instanceof ObjectFieldLocation) { |
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117 return ((ObjectFieldLocation) location).getIndex(); |
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118 } else if (location instanceof SimpleObjectFieldLocation) { |
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119 return ((SimpleObjectFieldLocation) location).getIndex(); |
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120 } else { |
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Truffle: initial commit of object API implementation
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121 return 0; |
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122 } |
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Truffle: initial commit of object API implementation
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parents:
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123 } |
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Truffle: initial commit of object API implementation
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parents:
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124 } |