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comparison graal/com.oracle.graal.hotspot/src/com/oracle/graal/hotspot/meta/HotSpotResolvedJavaType.java @ 7044:34753b057324

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added unit tests for JavaType, JavaMethod and ResolvedJavaMethod
author Doug Simon <doug.simon@oracle.com>
date Tue, 27 Nov 2012 16:09:05 +0100
parents dd81042f4eb1
children 7ac6e4c10e37
comparison
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7043:947de43c68d6 7044:34753b057324
20 * or visit www.oracle.com if you need additional information or have any 20 * or visit www.oracle.com if you need additional information or have any
21 * questions. 21 * questions.
22 */ 22 */
23 package com.oracle.graal.hotspot.meta; 23 package com.oracle.graal.hotspot.meta;
24 24
25 import static com.oracle.graal.api.meta.MetaUtil.*;
25 import static com.oracle.graal.graph.FieldIntrospection.*; 26 import static com.oracle.graal.graph.FieldIntrospection.*;
26 import static com.oracle.graal.hotspot.HotSpotGraalRuntime.*; 27 import static com.oracle.graal.hotspot.HotSpotGraalRuntime.*;
27 import static java.lang.reflect.Modifier.*; 28 import static java.lang.reflect.Modifier.*;
28 29
29 import java.lang.annotation.*; 30 import java.lang.annotation.*;
157 public ResolvedJavaType getComponentType() { 158 public ResolvedJavaType getComponentType() {
158 Class javaComponentType = javaMirror.getComponentType(); 159 Class javaComponentType = javaMirror.getComponentType();
159 return javaComponentType == null ? null : fromClass(javaComponentType); 160 return javaComponentType == null ? null : fromClass(javaComponentType);
160 } 161 }
161 162
163 public ResolvedJavaType getElementType() {
164 ResolvedJavaType type = this;
165 while (type.getComponentType() != null) {
166 type = type.getComponentType();
167 }
168 return type;
169 }
170
171 private static boolean hasSubtype(ResolvedJavaType type) {
172 assert !type.isInterface() && !type.isArrayClass() : type;
173 if (isPrimitive(type)) {
174 return false;
175 }
176 HotSpotVMConfig config = HotSpotGraalRuntime.getInstance().getConfig();
177 if (unsafeReadWord(((HotSpotResolvedJavaType) type).metaspaceKlass + config.subklassOffset) != 0) {
178 return true;
179 }
180 return false;
181 }
182
162 @Override 183 @Override
163 public ResolvedJavaType findUniqueConcreteSubtype() { 184 public ResolvedJavaType findUniqueConcreteSubtype() {
185 HotSpotVMConfig config = HotSpotGraalRuntime.getInstance().getConfig();
164 if (isArrayClass()) { 186 if (isArrayClass()) {
165 return getComponentType().findUniqueConcreteSubtype() == getComponentType() ? this : null; 187 ResolvedJavaType elementType = getElementType();
188 if (hasSubtype(elementType)) {
189 return null;
190 }
191 return this;
166 } else { 192 } else {
167 HotSpotVMConfig config = HotSpotGraalRuntime.getInstance().getConfig();
168 HotSpotResolvedJavaType type = this; 193 HotSpotResolvedJavaType type = this;
169 while (isAbstract(type.getModifiers())) { 194 while (isAbstract(type.getModifiers())) {
170 long subklass = unsafeReadWord(type.metaspaceKlass + config.subklassOffset); 195 long subklass = unsafeReadWord(type.metaspaceKlass + config.subklassOffset);
171 if (subklass == 0 || unsafeReadWord(subklass + config.nextSiblingOffset) != 0) { 196 if (subklass == 0 || unsafeReadWord(subklass + config.nextSiblingOffset) != 0) {
172 return null; 197 return null;
174 type = (HotSpotResolvedJavaType) fromMetaspaceKlass(subklass); 199 type = (HotSpotResolvedJavaType) fromMetaspaceKlass(subklass);
175 } 200 }
176 if (unsafeReadWord(type.metaspaceKlass + config.subklassOffset) != 0) { 201 if (unsafeReadWord(type.metaspaceKlass + config.subklassOffset) != 0) {
177 return null; 202 return null;
178 } 203 }
179 assert !type.isInterface();
180 return type; 204 return type;
181 } 205 }
182 } 206 }
183 207
184 @Override 208 @Override