001/* 002 * Copyright (c) 2011, 2014, Oracle and/or its affiliates. All rights reserved. 003 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 004 * 005 * This code is free software; you can redistribute it and/or modify it 006 * under the terms of the GNU General Public License version 2 only, as 007 * published by the Free Software Foundation. 008 * 009 * This code is distributed in the hope that it will be useful, but WITHOUT 010 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 011 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 012 * version 2 for more details (a copy is included in the LICENSE file that 013 * accompanied this code). 014 * 015 * You should have received a copy of the GNU General Public License version 016 * 2 along with this work; if not, write to the Free Software Foundation, 017 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 018 * 019 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 020 * or visit www.oracle.com if you need additional information or have any 021 * questions. 022 */ 023package jdk.internal.jvmci.hotspot; 024 025import static java.util.Objects.*; 026 027import java.lang.annotation.*; 028import java.lang.reflect.*; 029import java.net.*; 030 031import jdk.internal.jvmci.common.*; 032import jdk.internal.jvmci.meta.*; 033import jdk.internal.jvmci.meta.Assumptions.*; 034 035/** 036 * Implementation of {@link JavaType} for primitive HotSpot types. 037 */ 038public final class HotSpotResolvedPrimitiveType extends HotSpotResolvedJavaType implements HotSpotProxified { 039 040 private final Kind kind; 041 042 /** 043 * Creates the JVMCI mirror for a primitive {@link Kind}. 044 * 045 * <p> 046 * <b>NOTE</b>: Creating an instance of this class does not install the mirror for the 047 * {@link Class} type. Use {@link #fromClass(Class)} instead. 048 * </p> 049 * 050 * @param kind the Kind to create the mirror for 051 */ 052 public HotSpotResolvedPrimitiveType(Kind kind) { 053 super(String.valueOf(Character.toUpperCase(kind.getTypeChar()))); 054 this.kind = kind; 055 assert mirror().isPrimitive() : mirror() + " not a primitive type"; 056 } 057 058 @Override 059 public int getModifiers() { 060 return Modifier.ABSTRACT | Modifier.FINAL | Modifier.PUBLIC; 061 } 062 063 @Override 064 public HotSpotResolvedObjectTypeImpl getArrayClass() { 065 if (kind == Kind.Void) { 066 return null; 067 } 068 Class<?> javaArrayMirror = Array.newInstance(mirror(), 0).getClass(); 069 return HotSpotResolvedObjectTypeImpl.fromObjectClass(javaArrayMirror); 070 } 071 072 public ResolvedJavaType getElementalType() { 073 return this; 074 } 075 076 @Override 077 public ResolvedJavaType getComponentType() { 078 return null; 079 } 080 081 @Override 082 public ResolvedJavaType asExactType() { 083 return this; 084 } 085 086 @Override 087 public ResolvedJavaType getSuperclass() { 088 return null; 089 } 090 091 @Override 092 public ResolvedJavaType[] getInterfaces() { 093 return new ResolvedJavaType[0]; 094 } 095 096 @Override 097 public ResolvedJavaType getSingleImplementor() { 098 throw new JVMCIError("Cannot call getSingleImplementor() on a non-interface type: %s", this); 099 } 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 Kind getKind() { 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 <T extends Annotation> T getAnnotation(Class<T> annotationClass) { 213 return null; 214 } 215 216 @Override 217 public ResolvedJavaType resolve(ResolvedJavaType accessingClass) { 218 requireNonNull(accessingClass); 219 return this; 220 } 221 222 @Override 223 public void initialize() { 224 } 225 226 @Override 227 public ResolvedJavaField findInstanceFieldWithOffset(long offset, Kind expectedType) { 228 return null; 229 } 230 231 @Override 232 public String getSourceFileName() { 233 throw JVMCIError.unimplemented(); 234 } 235 236 @Override 237 public Class<?> mirror() { 238 return kind.toJavaClass(); 239 } 240 241 @Override 242 public URL getClassFilePath() { 243 return null; 244 } 245 246 @Override 247 public boolean isLocal() { 248 return false; 249 } 250 251 @Override 252 public boolean isMember() { 253 return false; 254 } 255 256 @Override 257 public ResolvedJavaType getEnclosingType() { 258 return null; 259 } 260 261 @Override 262 public ResolvedJavaMethod[] getDeclaredConstructors() { 263 return new ResolvedJavaMethod[0]; 264 } 265 266 @Override 267 public ResolvedJavaMethod[] getDeclaredMethods() { 268 return new ResolvedJavaMethod[0]; 269 } 270 271 @Override 272 public ResolvedJavaMethod getClassInitializer() { 273 return null; 274 } 275 276 @Override 277 public boolean isTrustedInterfaceType() { 278 return false; 279 } 280}