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8165
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1 /*
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2 * Copyright (c) 2013, 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.graal.lir;
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24
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25 import java.lang.reflect.*;
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26 import java.util.*;
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27
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28 import com.oracle.graal.graph.*;
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29 import com.oracle.graal.lir.LIRInstruction.OperandFlag;
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30 import com.oracle.graal.lir.LIRInstruction.OperandMode;
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31 import com.oracle.graal.lir.LIRInstruction.ValueProcedure;
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32
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33 public class CompositeValueClass extends LIRIntrospection {
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34
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35 public static final CompositeValueClass get(Class<? extends CompositeValue> c) {
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36 CompositeValueClass clazz = (CompositeValueClass) allClasses.get(c);
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37 if (clazz != null) {
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38 return clazz;
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39 }
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40
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41 // We can have a race of multiple threads creating the LIRInstructionClass at the same time.
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42 // However, only one will be put into the map, and this is the one returned by all threads.
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43 clazz = new CompositeValueClass(c);
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44 CompositeValueClass oldClazz = (CompositeValueClass) allClasses.putIfAbsent(c, clazz);
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45 if (oldClazz != null) {
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46 return oldClazz;
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47 } else {
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48 return clazz;
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49 }
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50 }
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51
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52 private final int directComponentCount;
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53 private final long[] componentOffsets;
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54 private final EnumSet<OperandFlag>[] componentFlags;
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55
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56 @SuppressWarnings("unchecked")
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57 public CompositeValueClass(Class<? extends CompositeValue> clazz) {
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58 super(clazz);
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59
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60 ValueFieldScanner scanner = new ValueFieldScanner(new DefaultCalcOffset());
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61 scanner.scan(clazz);
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62
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63 OperandModeAnnotation mode = scanner.valueAnnotations.get(CompositeValue.Component.class);
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64 directComponentCount = mode.scalarOffsets.size();
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65 componentOffsets = sortedLongCopy(mode.scalarOffsets, mode.arrayOffsets);
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66 componentFlags = arrayUsingSortedOffsets(mode.flags, componentOffsets, new EnumSet[componentOffsets.length]);
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67
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68 dataOffsets = sortedLongCopy(scanner.dataOffsets);
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69
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70 fieldNames = scanner.fieldNames;
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71 fieldTypes = scanner.fieldTypes;
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72 }
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73
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74 @Override
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75 protected void rescanFieldOffsets(CalcOffset calc) {
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76 ValueFieldScanner scanner = new ValueFieldScanner(calc);
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77 scanner.scan(clazz);
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78
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79 OperandModeAnnotation mode = scanner.valueAnnotations.get(CompositeValue.Component.class);
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80 copyInto(componentOffsets, sortedLongCopy(mode.scalarOffsets, mode.arrayOffsets));
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81
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82 copyInto(dataOffsets, sortedLongCopy(scanner.dataOffsets));
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83
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84 fieldNames.clear();
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85 fieldNames.putAll(scanner.fieldNames);
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86 fieldTypes.clear();
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87 fieldTypes.putAll(scanner.fieldTypes);
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88 }
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89
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90 private static class ValueFieldScanner extends FieldScanner {
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91
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92 public ValueFieldScanner(CalcOffset calc) {
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93 super(calc);
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94
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95 valueAnnotations.put(CompositeValue.Component.class, new OperandModeAnnotation());
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96 }
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97
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98 @Override
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99 protected void scan(Class<?> clazz) {
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100 super.scan(clazz);
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101 }
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102
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103 @Override
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104 protected EnumSet<OperandFlag> getFlags(Field field) {
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105 EnumSet<OperandFlag> result = EnumSet.noneOf(OperandFlag.class);
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106 if (field.isAnnotationPresent(CompositeValue.Component.class)) {
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107 result.addAll(Arrays.asList(field.getAnnotation(CompositeValue.Component.class).value()));
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108 } else {
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109 GraalInternalError.shouldNotReachHere();
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110 }
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111 return result;
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112 }
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113 }
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114
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115 @Override
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116 public String toString() {
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117 StringBuilder str = new StringBuilder();
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118 str.append(getClass().getSimpleName()).append(" ").append(clazz.getSimpleName()).append(" component[");
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119 for (int i = 0; i < componentOffsets.length; i++) {
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120 str.append(i == 0 ? "" : ", ").append(componentOffsets[i]);
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121 }
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122 str.append("] data[");
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123 for (int i = 0; i < dataOffsets.length; i++) {
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124 str.append(i == 0 ? "" : ", ").append(dataOffsets[i]);
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125 }
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126 str.append("]");
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127 return str.toString();
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128 }
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129
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130 public final void forEachComponent(CompositeValue obj, OperandMode mode, ValueProcedure proc) {
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131 forEach(obj, directComponentCount, componentOffsets, mode, componentFlags, proc);
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132 }
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133
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134 public String toString(CompositeValue obj) {
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135 StringBuilder result = new StringBuilder();
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136
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137 appendValues(result, obj, "", "", "{", "}", new String[]{""}, componentOffsets);
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138
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139 for (int i = 0; i < dataOffsets.length; i++) {
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140 result.append(" ").append(fieldNames.get(dataOffsets[i])).append(": ").append(getFieldString(obj, dataOffsets[i]));
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141 }
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142
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143 return result.toString();
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144 }
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145 }
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