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annotate truffle/com.oracle.truffle.object.basic/src/com/oracle/truffle/object/basic/BasicLayout.java @ 22306:8bc57c7bbf88

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Deprecate Layout.Builder#getAllowedImplicitCasts()
author Andreas Woess <andreas.woess@oracle.com>
date Tue, 13 Oct 2015 14:13:27 +0200
parents dc83cc1f94f2
children
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1 /*
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2 * Copyright (c) 2012, 2014, Oracle and/or its affiliates. All rights reserved.
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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4 *
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5 * This code is free software; you can redistribute it and/or modify it
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6 * under the terms of the GNU General Public License version 2 only, as
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7 * published by the Free Software Foundation.
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8 *
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9 * This code is distributed in the hope that it will be useful, but WITHOUT
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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12 * version 2 for more details (a copy is included in the LICENSE file that
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13 * accompanied this code).
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14 *
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15 * You should have received a copy of the GNU General Public License version
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16 * 2 along with this work; if not, write to the Free Software Foundation,
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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18 *
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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20 * or visit www.oracle.com if you need additional information or have any
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21 * questions.
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22 */
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23 package com.oracle.truffle.object.basic;
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24
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25 import com.oracle.truffle.api.object.DynamicObject;
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26 import com.oracle.truffle.api.object.Layout;
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27 import com.oracle.truffle.api.object.Location;
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28 import com.oracle.truffle.api.object.ObjectLocation;
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29 import com.oracle.truffle.api.object.ObjectType;
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30 import com.oracle.truffle.api.object.Shape;
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31 import com.oracle.truffle.api.object.Shape.Allocator;
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32 import com.oracle.truffle.object.LayoutImpl;
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33 import com.oracle.truffle.object.LayoutStrategy;
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34 import com.oracle.truffle.object.LocationImpl.InternalLongLocation;
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35 import com.oracle.truffle.object.Locations.DualLocation;
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36 import com.oracle.truffle.object.basic.BasicLocations.ObjectFieldLocation;
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37 import com.oracle.truffle.object.basic.BasicLocations.SimpleObjectFieldLocation;
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38
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39 import java.util.EnumSet;
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40
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41 public class BasicLayout extends LayoutImpl {
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42 private final ObjectLocation[] objectFields;
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43 private final InternalLongLocation[] primitiveFields;
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44 private final Location objectArrayLocation;
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45 private final Location primitiveArrayLocation;
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46
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47 BasicLayout(EnumSet<ImplicitCast> allowedImplicitCasts, LayoutStrategy strategy) {
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48 super(allowedImplicitCasts, DynamicObjectBasic.class, strategy);
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49 this.objectFields = DynamicObjectBasic.OBJECT_FIELD_LOCATIONS;
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50 this.primitiveFields = DynamicObjectBasic.PRIMITIVE_FIELD_LOCATIONS;
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51 this.primitiveArrayLocation = DynamicObjectBasic.PRIMITIVE_ARRAY_LOCATION;
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52 this.objectArrayLocation = DynamicObjectBasic.OBJECT_ARRAY_LOCATION;
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53 }
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54
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55 static LayoutImpl createLayoutImpl(Layout.Builder builder, LayoutStrategy strategy) {
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56 return new BasicLayout(getAllowedImplicitCasts(builder), strategy);
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57 }
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58
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59 @Override
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60 public DynamicObject newInstance(Shape shape) {
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61 return new DynamicObjectBasic(shape);
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62 }
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63
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64 @Override
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65 public Shape createShape(ObjectType operations, Object sharedData, int id) {
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66 return new ShapeBasic(this, sharedData, operations, id);
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67 }
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68
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69 @Override
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70 protected boolean hasObjectExtensionArray() {
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71 return true;
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72 }
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73
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74 @Override
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75 protected boolean hasPrimitiveExtensionArray() {
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76 return true;
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77 }
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78
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79 @Override
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80 protected int getObjectFieldCount() {
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81 return objectFields.length;
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82 }
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83
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84 @Override
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85 protected int getPrimitiveFieldCount() {
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86 return primitiveFields.length;
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87 }
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88
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89 @Override
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90 protected Location getObjectArrayLocation() {
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91 return objectArrayLocation;
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92 }
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93
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94 @Override
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95 protected Location getPrimitiveArrayLocation() {
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96 return primitiveArrayLocation;
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97 }
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98
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99 protected ObjectLocation getObjectFieldLocation(int index) {
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100 return objectFields[index];
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101 }
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102
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103 protected InternalLongLocation getPrimitiveFieldLocation(int index) {
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104 return primitiveFields[index];
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105 }
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106
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107 @Override
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108 public Allocator createAllocator() {
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109 LayoutImpl layout = this;
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110 Allocator allocator = getStrategy().createAllocator(layout);
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111 return allocator;
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112 }
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113
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114 @Override
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115 protected int objectFieldIndex(Location location) {
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116 if (location instanceof DualLocation) {
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117 return objectFieldIndex((Location) ((DualLocation) location).getObjectLocation());
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118 } else if (location instanceof ObjectFieldLocation) {
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119 return ((ObjectFieldLocation) location).getIndex();
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120 } else if (location instanceof SimpleObjectFieldLocation) {
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121 return ((SimpleObjectFieldLocation) location).getIndex();
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122 } else {
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123 return 0;
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124 }
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125 }
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126 }