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comparison truffle/com.oracle.truffle.object.basic/src/com/oracle/truffle/object/basic/BasicAllocator.java @ 21951:9c8c0937da41

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Moving all sources into truffle subdirectory
author Jaroslav Tulach <jaroslav.tulach@oracle.com>
date Wed, 17 Jun 2015 10:58:08 +0200
parents graal/com.oracle.truffle.object.basic/src/com/oracle/truffle/object/basic/BasicAllocator.java@2c3666f44855
children dc83cc1f94f2
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21950:2a5011c7e641 21951:9c8c0937da41
1 /*
2 * Copyright (c) 2012, 2014, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 */
23 package com.oracle.truffle.object.basic;
24
25 import static com.oracle.truffle.object.basic.BasicLocations.*;
26
27 import com.oracle.truffle.api.object.*;
28 import com.oracle.truffle.object.*;
29 import com.oracle.truffle.object.LocationImpl.InternalLongLocation;
30 import com.oracle.truffle.object.Locations.ConstantLocation;
31 import com.oracle.truffle.object.Locations.DeclaredDualLocation;
32 import com.oracle.truffle.object.Locations.DualLocation;
33 import com.oracle.truffle.object.Locations.ValueLocation;
34 import com.oracle.truffle.object.basic.BasicLocations.BooleanLocationDecorator;
35 import com.oracle.truffle.object.basic.BasicLocations.DoubleLocationDecorator;
36 import com.oracle.truffle.object.basic.BasicLocations.IntLocationDecorator;
37 import com.oracle.truffle.object.basic.BasicLocations.LongArrayLocation;
38 import com.oracle.truffle.object.basic.BasicLocations.LongFieldLocation;
39 import com.oracle.truffle.object.basic.BasicLocations.ObjectArrayLocation;
40
41 public abstract class BasicAllocator extends ShapeImpl.BaseAllocator {
42
43 public BasicAllocator(LayoutImpl layout) {
44 super(layout);
45 advance(((BasicLayout) layout).getPrimitiveArrayLocation());
46 }
47
48 public BasicAllocator(ShapeImpl shape) {
49 super(shape);
50 }
51
52 private BasicLayout getLayout() {
53 return (BasicLayout) layout;
54 }
55
56 @Override
57 protected Location moveLocation(Location oldLocation) {
58 if (oldLocation instanceof DeclaredDualLocation) {
59 return advance(newDeclaredDualLocation(((DeclaredDualLocation) oldLocation).get(null, false)));
60 } else if (oldLocation instanceof DualLocation) {
61 return advance(newDualLocation(((DualLocation) oldLocation).getType()));
62 } else if (oldLocation instanceof LongLocation) {
63 return newLongLocation(oldLocation.isFinal());
64 } else if (oldLocation instanceof IntLocation) {
65 return newIntLocation(oldLocation.isFinal());
66 } else if (oldLocation instanceof DoubleLocation) {
67 return newDoubleLocation(oldLocation.isFinal());
68 } else if (oldLocation instanceof BooleanLocation) {
69 return newBooleanLocation(oldLocation.isFinal());
70 } else if (oldLocation instanceof ObjectLocation) {
71 return newObjectLocation(oldLocation.isFinal(), ((ObjectLocation) oldLocation).isNonNull());
72 } else {
73 assert oldLocation instanceof ValueLocation;
74 return advance(oldLocation);
75 }
76 }
77
78 @Override
79 public Location newObjectLocation(boolean useFinal, boolean nonNull) {
80 if (ObjectStorageOptions.InObjectFields) {
81 int insertPos = objectFieldSize;
82 while (insertPos + OBJECT_SIZE <= getLayout().getObjectFieldCount()) {
83 return advance((Location) getLayout().getObjectFieldLocation(insertPos));
84 }
85 }
86 return newObjectArrayLocation(useFinal, nonNull);
87 }
88
89 @SuppressWarnings("unused")
90 private Location newObjectArrayLocation(boolean useFinal, boolean nonNull) {
91 return advance(new ObjectArrayLocation(objectArraySize, getLayout().getObjectArrayLocation()));
92 }
93
94 @Override
95 public Location newTypedObjectLocation(boolean useFinal, Class<?> type, boolean nonNull) {
96 return newObjectLocation(useFinal, nonNull);
97 }
98
99 @Override
100 public Location newIntLocation(boolean useFinal) {
101 if (ObjectStorageOptions.PrimitiveLocations && ObjectStorageOptions.IntegerLocations) {
102 if (ObjectStorageOptions.InObjectFields && primitiveFieldSize + LONG_SIZE <= getLayout().getPrimitiveFieldCount()) {
103 return advance(new IntLocationDecorator(getLayout().getPrimitiveFieldLocation(primitiveFieldSize)));
104 } else if (getLayout().hasPrimitiveExtensionArray() && isPrimitiveExtensionArrayAvailable()) {
105 return advance(new IntLocationDecorator(new LongArrayLocation(primitiveArraySize, getLayout().getPrimitiveArrayLocation())));
106 }
107 }
108 return newObjectLocation(useFinal, true);
109 }
110
111 @Override
112 public Location newDoubleLocation(boolean useFinal) {
113 if (ObjectStorageOptions.PrimitiveLocations && ObjectStorageOptions.DoubleLocations) {
114 if (ObjectStorageOptions.InObjectFields && primitiveFieldSize + LONG_SIZE <= getLayout().getPrimitiveFieldCount()) {
115 return advance(new DoubleLocationDecorator(getLayout().getPrimitiveFieldLocation(primitiveFieldSize), getLayout().isAllowedIntToDouble()));
116 } else if (getLayout().hasPrimitiveExtensionArray() && isPrimitiveExtensionArrayAvailable()) {
117 return advance(new DoubleLocationDecorator(new LongArrayLocation(primitiveArraySize, getLayout().getPrimitiveArrayLocation()), getLayout().isAllowedIntToDouble()));
118 }
119 }
120 return newObjectLocation(useFinal, true);
121 }
122
123 @Override
124 public Location newLongLocation(boolean useFinal) {
125 if (ObjectStorageOptions.PrimitiveLocations && ObjectStorageOptions.LongLocations) {
126 if (ObjectStorageOptions.InObjectFields && primitiveFieldSize + LONG_SIZE <= getLayout().getPrimitiveFieldCount()) {
127 return advance((Location) LongFieldLocation.create(getLayout().getPrimitiveFieldLocation(primitiveFieldSize), getLayout().isAllowedIntToLong()));
128 } else if (getLayout().hasPrimitiveExtensionArray() && isPrimitiveExtensionArrayAvailable()) {
129 return advance(new LongArrayLocation(primitiveArraySize, getLayout().getPrimitiveArrayLocation(), getLayout().isAllowedIntToLong()));
130 }
131 }
132 return newObjectLocation(useFinal, true);
133 }
134
135 @Override
136 public Location newBooleanLocation(boolean useFinal) {
137 if (ObjectStorageOptions.PrimitiveLocations && ObjectStorageOptions.BooleanLocations) {
138 if (primitiveFieldSize + LONG_SIZE <= getLayout().getPrimitiveFieldCount()) {
139 return advance(new BooleanLocationDecorator(getLayout().getPrimitiveFieldLocation(primitiveFieldSize)));
140 }
141 }
142 return newObjectLocation(useFinal, true);
143 }
144
145 private boolean isPrimitiveExtensionArrayAvailable() {
146 return hasPrimitiveArray;
147 }
148
149 @Override
150 protected Location locationForValueUpcast(Object value, Location oldLocation) {
151 assert !(value instanceof Class);
152 if (oldLocation instanceof DualLocation) {
153 DualLocation dualLocation = (DualLocation) oldLocation;
154 if (dualLocation.getType() == null) {
155 if (value instanceof Integer) {
156 return dualLocation.changeType(int.class);
157 } else if (value instanceof Double) {
158 return dualLocation.changeType(double.class);
159 } else if (value instanceof Long) {
160 return dualLocation.changeType(long.class);
161 } else if (value instanceof Boolean) {
162 return dualLocation.changeType(boolean.class);
163 } else {
164 return dualLocation.changeType(Object.class);
165 }
166 } else if (dualLocation.getType().isPrimitive()) {
167 return dualLocation.changeType(Object.class);
168 } else {
169 throw new UnsupportedOperationException();
170 }
171 } else if (oldLocation instanceof ConstantLocation) {
172 return constantLocation(value);
173 } else {
174 throw new UnsupportedOperationException();
175 }
176 }
177
178 @Override
179 protected DeclaredDualLocation newDeclaredDualLocation(Object value) {
180 return new DeclaredDualLocation((InternalLongLocation) newLongLocation(false), (ObjectLocation) newObjectLocation(false, false), value, layout);
181 }
182 }