1 /* 2 * Copyright (c) 2011, 2015, 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 jdk.vm.ci.hotspot; 24 25 import static java.util.Objects.*; 26 27 import java.lang.annotation.*; 28 import java.lang.reflect.*; 29 import java.net.*; 30 31 import jdk.vm.ci.common.*; 32 import jdk.vm.ci.meta.*; 33 import jdk.vm.ci.meta.Assumptions.AssumptionResult; 34 35 /** 36 * Implementation of {@link JavaType} for primitive HotSpot types. 37 */ 38 public final class HotSpotResolvedPrimitiveType extends HotSpotResolvedJavaType implements HotSpotProxified { 39 40 private final JavaKind kind; 41 42 /** 43 * Creates the JVMCI mirror for a primitive {@link JavaKind}. 44 * 45 * <p> 46 * <b>NOTE</b>: Creating an instance of this class does not install the mirror for the 47 * {@link Class} type. Use {@link HotSpotJVMCIRuntimeProvider#fromClass(Class)} instead. 48 * </p> 49 * 50 * @param kind the Kind to create the mirror for 51 */ 52 public HotSpotResolvedPrimitiveType(JavaKind kind) { 53 super(String.valueOf(Character.toUpperCase(kind.getTypeChar()))); 54 this.kind = kind; 55 assert mirror().isPrimitive() : mirror() + " not a primitive type"; 56 } 57 58 @Override 59 public int getModifiers() { 60 return Modifier.ABSTRACT | Modifier.FINAL | Modifier.PUBLIC; 61 } 62 63 @Override 64 public HotSpotResolvedObjectTypeImpl getArrayClass() { 65 if (kind == JavaKind.Void) { 66 return null; 67 } 68 Class<?> javaArrayMirror = Array.newInstance(mirror(), 0).getClass(); 69 return HotSpotResolvedObjectTypeImpl.fromObjectClass(javaArrayMirror); 70 } 71 72 public ResolvedJavaType getElementalType() { 73 return this; 74 } 75 76 @Override 77 public ResolvedJavaType getComponentType() { 78 return null; 79 } 80 81 @Override 82 public ResolvedJavaType asExactType() { 83 return this; 84 } 85 86 @Override 87 public ResolvedJavaType getSuperclass() { 88 return null; 89 } 90 91 @Override 92 public ResolvedJavaType[] getInterfaces() { 93 return new ResolvedJavaType[0]; 94 } 95 96 @Override 97 public ResolvedJavaType getSingleImplementor() { 98 throw new JVMCIError("Cannot call getSingleImplementor() on a non-interface type: %s", this); 99 } 100 101 @Override 102 public ResolvedJavaType findLeastCommonAncestor(ResolvedJavaType otherType) { 103 return null; 104 } 105 106 @Override 107 public JavaConstant getObjectHub() { 108 throw JVMCIError.unimplemented(); 109 } 110 111 @Override 112 public JavaConstant getJavaClass() { 113 throw JVMCIError.unimplemented(); 114 } 115 116 @Override 117 public AssumptionResult<Boolean> hasFinalizableSubclass() { 118 return new AssumptionResult<>(false); 119 } 120 121 @Override 122 public boolean hasFinalizer() { 123 return false; 124 } 125 126 @Override 127 public boolean isArray() { 128 return false; 129 } 130 131 @Override 132 public boolean isPrimitive() { 133 return true; 134 } 135 136 @Override 137 public boolean isInitialized() { 138 return true; 139 } 140 141 public boolean isLinked() { 142 return true; 143 } 144 145 @Override 146 public boolean isInstance(JavaConstant obj) { 147 return false; 148 } 149 150 @Override 151 public boolean isInstanceClass() { 152 return false; 153 } 154 155 @Override 156 public boolean isInterface() { 157 return false; 158 } 159 160 @Override 161 public boolean isAssignableFrom(ResolvedJavaType other) { 162 assert other != null; 163 return other.equals(this); 164 } 165 166 @Override 167 public JavaKind getJavaKind() { 168 return kind; 169 } 170 171 @Override 172 public boolean isJavaLangObject() { 173 return false; 174 } 175 176 @Override 177 public ResolvedJavaMethod resolveConcreteMethod(ResolvedJavaMethod method, ResolvedJavaType callerType) { 178 return null; 179 } 180 181 @Override 182 public ResolvedJavaMethod resolveMethod(ResolvedJavaMethod method, ResolvedJavaType callerType) { 183 return null; 184 } 185 186 @Override 187 public String toString() { 188 return "HotSpotResolvedPrimitiveType<" + kind + ">"; 189 } 190 191 @Override 192 public AssumptionResult<ResolvedJavaType> findLeafConcreteSubtype() { 193 return new AssumptionResult<>(this); 194 } 195 196 @Override 197 public AssumptionResult<ResolvedJavaMethod> findUniqueConcreteMethod(ResolvedJavaMethod method) { 198 return null; 199 } 200 201 @Override 202 public ResolvedJavaField[] getInstanceFields(boolean includeSuperclasses) { 203 return new ResolvedJavaField[0]; 204 } 205 206 @Override 207 public ResolvedJavaField[] getStaticFields() { 208 return new ResolvedJavaField[0]; 209 } 210 211 @Override 212 public Annotation[] getAnnotations() { 213 return new Annotation[0]; 214 } 215 216 @Override 217 public <T extends Annotation> T getAnnotation(Class<T> annotationClass) { 218 return null; 219 } 220 221 @Override 222 public ResolvedJavaType resolve(ResolvedJavaType accessingClass) { 223 requireNonNull(accessingClass); 224 return this; 225 } 226 227 @Override 228 public void initialize() { 229 } 230 231 @Override 232 public ResolvedJavaField findInstanceFieldWithOffset(long offset, JavaKind expectedType) { 233 return null; 234 } 235 236 @Override 237 public String getSourceFileName() { 238 throw JVMCIError.unimplemented(); 239 } 240 241 @Override 242 public Class<?> mirror() { 243 return kind.toJavaClass(); 244 } 245 246 @Override 247 public URL getClassFilePath() { 248 return null; 249 } 250 251 @Override 252 public boolean isLocal() { 253 return false; 254 } 255 256 @Override 257 public boolean isMember() { 258 return false; 259 } 260 261 @Override 262 public ResolvedJavaType getEnclosingType() { 263 return null; 264 } 265 266 @Override 267 public ResolvedJavaMethod[] getDeclaredConstructors() { 268 return new ResolvedJavaMethod[0]; 269 } 270 271 @Override 272 public ResolvedJavaMethod[] getDeclaredMethods() { 273 return new ResolvedJavaMethod[0]; 274 } 275 276 @Override 277 public ResolvedJavaMethod getClassInitializer() { 278 return null; 279 } 280 281 @Override 282 public boolean isTrustedInterfaceType() { 283 return false; 284 } 285 }