Mercurial > hg > truffle
annotate graal/com.oracle.graal.hotspot/src/com/oracle/graal/hotspot/meta/HotSpotResolvedJavaType.java @ 7030:d78c83e8b70b
Fix getInstanceFields for arryas and interfaces
author | Christian Wimmer <christian.wimmer@oracle.com> |
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date | Mon, 26 Nov 2012 18:03:47 -0800 |
parents | 472609cc3e10 |
children | dd81042f4eb1 |
rev | line source |
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1 /* |
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2 * Copyright (c) 2011, 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.hotspot.meta; |
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24 |
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25 import static com.oracle.graal.graph.FieldIntrospection.*; |
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26 |
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27 import java.lang.annotation.*; |
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28 import java.lang.reflect.*; |
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29 import java.util.*; |
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30 |
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31 import com.oracle.graal.api.meta.*; |
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32 import com.oracle.graal.hotspot.*; |
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33 |
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34 /** |
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35 * Implementation of {@link JavaType} for resolved non-primitive HotSpot classes. |
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36 */ |
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37 public final class HotSpotResolvedJavaType extends HotSpotJavaType implements ResolvedJavaType { |
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38 |
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39 private static final long serialVersionUID = 3481514353553840471L; |
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40 |
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41 /** |
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42 * Value for the {@code sizeOrSpecies} parameter in {@link HotSpotResolvedJavaType#HotSpotResolvedJavaType} |
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43 * denoting that the new type represents an interface class. |
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44 */ |
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45 public static final int INTERFACE_SPECIES_VALUE = Integer.MIN_VALUE; |
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46 |
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47 /** |
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48 * Value for the {@code sizeOrSpecies} parameter in {@link HotSpotResolvedJavaType#HotSpotResolvedJavaType} |
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49 * denoting that the new type represents an array class. |
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50 */ |
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51 public static final int ARRAY_SPECIES_VALUE = Integer.MAX_VALUE; |
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52 |
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53 /** |
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54 * Reference to the metaspace Klass object. |
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55 */ |
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56 private final long metaspaceKlass; |
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57 |
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58 private final Class<?> javaMirror; // this could be read directly from 'metaspaceKlass'... |
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59 private final String simpleName; |
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60 private final boolean hasFinalizableSubclass; |
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61 |
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62 /** |
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63 * The instance size for an instance type, {@link HotSpotResolvedJavaType#INTERFACE_SPECIES_VALUE} denoting |
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64 * an interface type or {@link HotSpotResolvedJavaType#ARRAY_SPECIES_VALUE} denoting an array type. |
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65 */ |
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66 private final int sizeOrSpecies; |
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67 |
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68 private HashMap<Long, ResolvedJavaField> fieldCache; |
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69 private HashMap<Long, HotSpotResolvedJavaMethod> methodCache; |
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70 private HotSpotResolvedJavaField[] instanceFields; |
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71 private ResolvedJavaType[] interfaces; |
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72 private ConstantPool constantPool; |
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73 private boolean isInitialized; |
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74 private ResolvedJavaType arrayOfType; |
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75 |
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76 /** |
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77 * Gets the Graal mirror from a HotSpot metaspace Klass native object. |
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78 * |
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79 * @param metaspaceKlass a metaspace Klass object boxed in a {@link Constant} |
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80 * @return the {@link ResolvedJavaType} corresponding to {@code klassConstant} |
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81 */ |
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82 public static ResolvedJavaType fromMetaspaceKlass(Constant metaspaceKlass) { |
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83 assert metaspaceKlass.getKind().isLong(); |
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84 return fromMetaspaceKlass(metaspaceKlass.asLong()); |
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85 } |
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86 |
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87 /** |
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88 * Gets the Graal mirror from a HotSpot metaspace Klass native object. |
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89 * |
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90 * @param metaspaceKlass a metaspace Klass object |
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91 * @return the {@link ResolvedJavaType} corresponding to {@code metaspaceKlass} |
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92 */ |
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93 public static ResolvedJavaType fromMetaspaceKlass(long metaspaceKlass) { |
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94 assert metaspaceKlass != 0; |
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95 Class javaClass = (Class) unsafe.getObject(null, metaspaceKlass + HotSpotGraalRuntime.getInstance().getConfig().classMirrorOffset); |
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96 assert javaClass != null; |
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97 return fromClass(javaClass); |
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98 } |
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99 |
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100 /** |
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101 * Gets the Graal mirror from a {@link Class} object. |
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102 * |
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103 * @return the {@link HotSpotResolvedJavaType} corresponding to {@code javaClass} |
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104 */ |
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105 public static ResolvedJavaType fromClass(Class javaClass) { |
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106 ResolvedJavaType type = (ResolvedJavaType) unsafe.getObject(javaClass, (long) HotSpotGraalRuntime.getInstance().getConfig().graalMirrorInClassOffset); |
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107 if (type == null) { |
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108 type = HotSpotGraalRuntime.getInstance().getCompilerToVM().getResolvedType(javaClass); |
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109 assert type != null; |
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110 } |
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111 return type; |
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112 } |
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113 |
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114 /** |
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115 * @param hasFinalizableSubclass |
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116 * @param sizeOrSpecies the size of an instance of the type, or {@link HotSpotResolvedJavaType#INTERFACE_SPECIES_VALUE} or {@link HotSpotResolvedJavaType#ARRAY_SPECIES_VALUE} |
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117 */ |
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118 public HotSpotResolvedJavaType(long metaspaceKlass, |
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119 String name, |
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120 String simpleName, |
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121 Class javaMirror, |
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122 boolean hasFinalizableSubclass, |
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123 int sizeOrSpecies) { |
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124 super(name); |
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125 this.metaspaceKlass = metaspaceKlass; |
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126 this.javaMirror = javaMirror; |
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127 this.simpleName = simpleName; |
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128 this.hasFinalizableSubclass = hasFinalizableSubclass; |
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129 this.sizeOrSpecies = sizeOrSpecies; |
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130 assert name.charAt(0) != '[' || sizeOrSpecies == ARRAY_SPECIES_VALUE : name + " " + Long.toHexString(sizeOrSpecies); |
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131 assert javaMirror.isArray() == isArrayClass(); |
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132 assert javaMirror.isInterface() == isInterface(); |
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133 //System.out.println("0x" + Long.toHexString(metaspaceKlass) + ": " + name); |
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134 } |
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135 |
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136 @Override |
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137 public int getModifiers() { |
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138 return javaMirror.getModifiers(); |
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139 } |
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140 |
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141 public int getAccessFlags() { |
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142 HotSpotVMConfig config = HotSpotGraalRuntime.getInstance().getConfig(); |
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143 return unsafe.getInt(null, metaspaceKlass + config.klassAccessFlagsOffset); |
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144 } |
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145 |
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146 @Override |
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147 public ResolvedJavaType getArrayClass() { |
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148 if (arrayOfType == null) { |
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149 arrayOfType = fromClass(Array.newInstance(javaMirror, 0).getClass()); |
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150 } |
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151 return arrayOfType; |
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152 } |
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153 |
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154 @Override |
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155 public ResolvedJavaType getComponentType() { |
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156 Class javaComponentType = javaMirror.getComponentType(); |
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157 return javaComponentType == null ? null : fromClass(javaComponentType); |
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158 } |
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159 |
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160 @Override |
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161 public ResolvedJavaType findUniqueConcreteSubtype() { |
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162 if (isArrayClass()) { |
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163 return getComponentType().findUniqueConcreteSubtype() == getComponentType() ? this : null; |
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164 } else { |
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165 ResolvedJavaType subtype = (ResolvedJavaType) HotSpotGraalRuntime.getInstance().getCompilerToVM().getUniqueConcreteSubtype(this); |
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166 assert subtype == null || !subtype.isInterface(); |
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167 return subtype; |
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168 } |
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169 } |
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170 |
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171 @Override |
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172 public ResolvedJavaType getSuperclass() { |
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173 Class javaSuperclass = javaMirror.getSuperclass(); |
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174 return javaSuperclass == null ? null : fromClass(javaSuperclass); |
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175 } |
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176 |
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177 @Override |
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178 public ResolvedJavaType[] getInterfaces() { |
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179 if (interfaces == null) { |
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180 Class[] javaInterfaces = javaMirror.getInterfaces(); |
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181 ResolvedJavaType[] result = new ResolvedJavaType[javaInterfaces.length]; |
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182 for (int i = 0; i < javaInterfaces.length; i++) { |
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183 result[i] = fromClass(javaInterfaces[i]); |
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184 } |
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185 interfaces = result; |
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186 } |
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187 return interfaces; |
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188 } |
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189 |
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190 @Override |
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191 public ResolvedJavaType findLeastCommonAncestor(ResolvedJavaType otherType) { |
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192 if (otherType instanceof HotSpotTypePrimitive) { |
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193 return null; |
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194 } else { |
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195 return (ResolvedJavaType) HotSpotGraalRuntime.getInstance().getCompilerToVM().getLeastCommonAncestor(this, (HotSpotResolvedJavaType) otherType); |
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196 } |
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197 } |
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198 |
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199 @Override |
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200 public ResolvedJavaType asExactType() { |
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201 if (isArrayClass()) { |
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202 return getComponentType().asExactType() != null ? this : null; |
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203 } |
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204 return Modifier.isFinal(getModifiers()) ? this : null; |
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205 } |
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206 |
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207 @Override |
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208 public Constant getEncoding(Representation r) { |
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209 switch (r) { |
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210 case JavaClass: |
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211 return Constant.forObject(javaMirror); |
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212 case ObjectHub: |
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213 return klass(); |
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214 case StaticPrimitiveFields: |
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215 case StaticObjectFields: |
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216 return Constant.forObject(javaMirror); |
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217 default: |
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218 assert false : "Should not reach here."; |
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219 return null; |
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220 } |
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221 } |
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222 |
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223 @Override |
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224 public boolean hasFinalizableSubclass() { |
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225 return hasFinalizableSubclass; |
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226 } |
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227 |
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228 @Override |
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229 public boolean hasFinalizer() { |
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230 HotSpotVMConfig config = HotSpotGraalRuntime.getInstance().getConfig(); |
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231 return (getAccessFlags() & config.klassHasFinalizerFlag) != 0; |
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232 } |
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233 |
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234 @Override |
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235 public boolean isArrayClass() { |
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236 return sizeOrSpecies == ARRAY_SPECIES_VALUE; |
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237 } |
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238 |
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239 @Override |
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240 public boolean isInitialized() { |
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241 if (!isInitialized) { |
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242 isInitialized = HotSpotGraalRuntime.getInstance().getCompilerToVM().isTypeInitialized(this); |
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243 } |
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244 return isInitialized; |
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245 } |
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246 |
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247 @Override |
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248 public void initialize() { |
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249 if (!isInitialized) { |
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250 HotSpotGraalRuntime.getInstance().getCompilerToVM().initializeType(this); |
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251 } |
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252 isInitialized = true; |
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253 } |
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254 |
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255 @Override |
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256 public boolean isInstance(Constant obj) { |
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257 if (obj.getKind().isObject() && !obj.isNull()) { |
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258 return javaMirror.isInstance(obj.asObject()); |
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259 } |
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260 return false; |
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261 } |
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262 |
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263 @Override |
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264 public boolean isInstanceClass() { |
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265 return !isArrayClass() && !isInterface(); |
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266 } |
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267 |
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268 @Override |
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269 public boolean isInterface() { |
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270 return sizeOrSpecies == INTERFACE_SPECIES_VALUE; |
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271 } |
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272 |
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273 @Override |
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274 public boolean isSubtypeOf(ResolvedJavaType other) { |
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275 if (other instanceof HotSpotResolvedJavaType) { |
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276 return HotSpotGraalRuntime.getInstance().getCompilerToVM().isSubtypeOf(this, other); |
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277 } |
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278 // No resolved type is a subtype of an unresolved type. |
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279 return false; |
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280 } |
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281 |
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282 @Override |
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283 public Kind getKind() { |
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284 return Kind.Object; |
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285 } |
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286 |
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287 @Override |
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288 public ResolvedJavaMethod resolveMethod(ResolvedJavaMethod method) { |
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289 assert method instanceof HotSpotMethod; |
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290 return (ResolvedJavaMethod) HotSpotGraalRuntime.getInstance().getCompilerToVM().resolveMethod(this, method.getName(), ((HotSpotSignature) method.getSignature()).asString()); |
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291 } |
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292 |
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293 @Override |
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294 public String toString() { |
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295 return "HotSpotType<" + simpleName + ", resolved>"; |
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296 } |
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297 |
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298 public ConstantPool constantPool() { |
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299 if (constantPool == null) { |
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300 constantPool = new HotSpotConstantPool(this); |
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301 } |
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302 return constantPool; |
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303 } |
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304 |
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305 /** |
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306 * Gets the instance size of this type. If an instance of this type cannot |
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307 * be fast path allocated, then the returned value is negative (its absolute |
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308 * value gives the size). Must not be called if this is an array or interface type. |
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309 */ |
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310 public int instanceSize() { |
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311 assert !isArrayClass(); |
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312 assert !isInterface(); |
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313 return sizeOrSpecies; |
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314 } |
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315 |
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316 public synchronized HotSpotResolvedJavaMethod createMethod(long metaspaceMethod) { |
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317 HotSpotResolvedJavaMethod method = null; |
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318 if (methodCache == null) { |
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319 methodCache = new HashMap<>(8); |
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320 } else { |
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321 method = methodCache.get(metaspaceMethod); |
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322 } |
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323 if (method == null) { |
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324 method = new HotSpotResolvedJavaMethod(this, metaspaceMethod); |
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325 methodCache.put(metaspaceMethod, method); |
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326 } |
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327 return method; |
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328 } |
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329 |
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330 public synchronized ResolvedJavaField createField(String fieldName, JavaType type, int offset, int flags, boolean internal) { |
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331 ResolvedJavaField result = null; |
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332 |
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333 long id = offset + ((long) flags << 32); |
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334 |
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335 // (thomaswue) Must cache the fields, because the local load elimination only works if the objects from two field lookups are identical. |
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336 if (fieldCache == null) { |
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337 fieldCache = new HashMap<>(8); |
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338 } else { |
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339 result = fieldCache.get(id); |
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340 } |
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341 |
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342 if (result == null) { |
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343 result = new HotSpotResolvedJavaField(this, fieldName, type, offset, flags, internal); |
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344 fieldCache.put(id, result); |
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345 } else { |
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Cleanup of Graal API: Rename methods so that it follows the getXxx naming convention and so that they are similar to the names of the java.lang.reflect classes. Remove unused methods.
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346 assert result.getName().equals(fieldName); |
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347 assert result.getModifiers() == (Modifier.fieldModifiers() & flags); |
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348 } |
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349 |
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350 return result; |
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351 } |
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352 |
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353 @Override |
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354 public ResolvedJavaMethod findUniqueConcreteMethod(ResolvedJavaMethod method) { |
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355 return ((HotSpotResolvedJavaMethod) method).uniqueConcreteMethod(); |
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356 } |
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357 |
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358 @Override |
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359 public ResolvedJavaField[] getInstanceFields(boolean includeSuperclasses) { |
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360 if (instanceFields == null) { |
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361 if (isArrayClass() || isInterface()) { |
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362 instanceFields = new HotSpotResolvedJavaField[0]; |
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363 } else { |
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364 HotSpotResolvedJavaField[] myFields = HotSpotGraalRuntime.getInstance().getCompilerToVM().getInstanceFields(this); |
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365 if (javaMirror != Object.class) { |
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366 HotSpotResolvedJavaField[] superFields = (HotSpotResolvedJavaField[]) getSuperclass().getInstanceFields(true); |
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367 HotSpotResolvedJavaField[] fields = Arrays.copyOf(superFields, superFields.length + myFields.length); |
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368 System.arraycopy(myFields, 0, fields, superFields.length, myFields.length); |
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369 instanceFields = fields; |
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370 } else { |
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371 assert myFields.length == 0 : "java.lang.Object has fields!"; |
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372 instanceFields = myFields; |
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373 } |
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374 } |
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375 } |
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376 if (!includeSuperclasses) { |
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377 int myFieldsStart = 0; |
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378 while (myFieldsStart < instanceFields.length && instanceFields[myFieldsStart].getDeclaringClass() != this) { |
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379 myFieldsStart++; |
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380 } |
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381 if (myFieldsStart == 0) { |
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382 return instanceFields; |
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383 } |
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384 if (myFieldsStart == instanceFields.length) { |
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385 return new HotSpotResolvedJavaField[0]; |
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386 } |
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387 return Arrays.copyOfRange(instanceFields, myFieldsStart, instanceFields.length); |
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388 } |
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389 return instanceFields; |
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390 } |
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391 |
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392 @Override |
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393 public Class< ? > toJava() { |
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394 return javaMirror; |
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395 } |
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396 |
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397 @Override |
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398 public boolean isClass(Class c) { |
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399 return c == javaMirror; |
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400 } |
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401 |
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402 @Override |
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403 public <T extends Annotation> T getAnnotation(Class<T> annotationClass) { |
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404 return javaMirror.getAnnotation(annotationClass); |
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405 } |
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14a00ee82980
Implement eager type resolving.
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parents:
4433
diff
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|
406 |
14a00ee82980
Implement eager type resolving.
Andreas Woess <andreas.woess@jku.at>
parents:
4433
diff
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407 @Override |
5541
b4c406861c33
More renamings to drop Ri* prefix completely. Deleted graph.BitMap class and replaced with java.util.BitSet.
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408 public ResolvedJavaType resolve(ResolvedJavaType accessingClass) { |
4484
14a00ee82980
Implement eager type resolving.
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409 return this; |
14a00ee82980
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diff
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410 } |
5326
a53162ca8219
introduced HotSpotKlassOop type to convey a klassOop value from the compiler to the C++ code instead of relying on the C++ code automagically converting a HotSpotTypeResolvedImpl value to a klassOop
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411 |
a53162ca8219
introduced HotSpotKlassOop type to convey a klassOop value from the compiler to the C++ code instead of relying on the C++ code automagically converting a HotSpotTypeResolvedImpl value to a klassOop
Doug Simon <doug.simon@oracle.com>
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412 @Override |
6950
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413 public Constant klass() { |
6996
eec373d34caf
added support for annotated Constants and used it to track Klass* values in Graal and register them in the metadata section of a nmethod during code installation
Doug Simon <doug.simon@oracle.com>
parents:
6958
diff
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|
414 return new Constant(HotSpotGraalRuntime.getInstance().getTarget().wordKind, metaspaceKlass, this); |
5326
a53162ca8219
introduced HotSpotKlassOop type to convey a klassOop value from the compiler to the C++ code instead of relying on the C++ code automagically converting a HotSpotTypeResolvedImpl value to a klassOop
Doug Simon <doug.simon@oracle.com>
parents:
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diff
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|
415 } |
5466
af07e798947d
lifted fast subtype check into checkcast snippets
Doug Simon <doug.simon@oracle.com>
parents:
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diff
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|
416 |
af07e798947d
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417 public boolean isPrimaryType() { |
6950
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418 return HotSpotGraalRuntime.getInstance().getConfig().secondarySuperCacheOffset != superCheckOffset(); |
5466
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419 } |
af07e798947d
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diff
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|
420 |
af07e798947d
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5326
diff
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|
421 public int superCheckOffset() { |
6950
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diff
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|
422 HotSpotVMConfig config = HotSpotGraalRuntime.getInstance().getConfig(); |
41938af2b3d8
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|
423 return unsafe.getInt(null, metaspaceKlass + config.superCheckOffsetOffset); |
5466
af07e798947d
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5326
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|
424 } |
5686
6cb39a47da14
replaced loading of instance prototype header word with a constant obtained from HotSpotResolvedJavaType
Doug Simon <doug.simon@oracle.com>
parents:
5682
diff
changeset
|
425 |
6375
1d7c73b5d787
terminology change to match C++ code and biased locking paper: "initial mark word" -> "prototype mark word"
Doug Simon <doug.simon@oracle.com>
parents:
6367
diff
changeset
|
426 public long prototypeMarkWord() { |
6588
b89b5038ad7e
removed _'s from method names in CompilerToVM
Doug Simon <doug.simon@oracle.com>
parents:
6549
diff
changeset
|
427 return HotSpotGraalRuntime.getInstance().getCompilerToVM().getPrototypeMarkWord(this); |
5686
6cb39a47da14
replaced loading of instance prototype header word with a constant obtained from HotSpotResolvedJavaType
Doug Simon <doug.simon@oracle.com>
parents:
5682
diff
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|
428 } |
3733
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|
429 } |