Mercurial > hg > truffle
annotate agent/src/share/classes/sun/jvm/hotspot/jdi/ArrayTypeImpl.java @ 1913:3b2dea75431e
6984311: JSR 292 needs optional bootstrap method parameters
Summary: Allow CONSTANT_InvokeDynamic nodes to have any number of extra operands.
Reviewed-by: twisti
| author | jrose |
|---|---|
| date | Sat, 30 Oct 2010 13:08:23 -0700 |
| parents | c18cbe5936b8 |
| children | 29985fccf378 |
| rev | line source |
|---|---|
| 0 | 1 /* |
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6941466: Oracle rebranding changes for Hotspot repositories
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2 * Copyright (c) 2002, 2004, Oracle and/or its affiliates. All rights reserved. |
| 0 | 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 * | |
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6941466: Oracle rebranding changes for Hotspot repositories
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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6941466: Oracle rebranding changes for Hotspot repositories
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
| 0 | 22 * |
| 23 */ | |
| 24 | |
| 25 package sun.jvm.hotspot.jdi; | |
| 26 | |
| 27 import com.sun.jdi.*; | |
| 28 | |
| 29 import sun.jvm.hotspot.oops.ArrayKlass; | |
| 30 import sun.jvm.hotspot.oops.InstanceKlass; | |
| 31 import sun.jvm.hotspot.oops.ObjArrayKlass; | |
| 32 import sun.jvm.hotspot.oops.TypeArrayKlass; | |
| 33 import sun.jvm.hotspot.oops.Klass; | |
| 34 import sun.jvm.hotspot.oops.Instance; | |
| 35 import sun.jvm.hotspot.oops.Symbol; | |
| 36 import java.util.List; | |
| 37 import java.util.ArrayList; | |
| 38 import java.util.Iterator; | |
| 39 import java.util.Map; | |
| 40 | |
| 41 public class ArrayTypeImpl extends ReferenceTypeImpl implements ArrayType { | |
| 42 protected ArrayTypeImpl(VirtualMachine aVm, ArrayKlass aRef) { | |
| 43 super(aVm, aRef); | |
| 44 } | |
| 45 | |
| 46 public ArrayReference newInstance(int length) { | |
| 47 vm.throwNotReadOnlyException("ArrayType.newInstance(int)"); | |
| 48 return null; | |
| 49 } | |
| 50 | |
| 51 public String componentSignature() { | |
| 52 return signature().substring(1); // Just skip the leading '[' | |
| 53 } | |
| 54 | |
| 55 public String componentTypeName() { | |
| 56 JNITypeParser parser = new JNITypeParser(componentSignature()); | |
| 57 return parser.typeName(); | |
| 58 } | |
| 59 | |
| 60 public ClassLoaderReference classLoader() { | |
| 61 if (ref() instanceof TypeArrayKlass) { | |
| 62 // primitive array klasses are loaded by bootstrap loader | |
| 63 return null; | |
| 64 } else { | |
| 65 Klass bottomKlass = ((ObjArrayKlass)ref()).getBottomKlass(); | |
| 66 if (bottomKlass instanceof TypeArrayKlass) { | |
| 67 // multidimensional primitive array klasses are loaded by bootstrap loader | |
| 68 return null; | |
| 69 } else { | |
| 70 // class loader of any other obj array klass is same as the loader | |
| 71 // that loaded the bottom InstanceKlass | |
| 72 Instance xx = (Instance)(((InstanceKlass) bottomKlass).getClassLoader()); | |
| 73 return vm.classLoaderMirror(xx); | |
| 74 } | |
| 75 } | |
| 76 } | |
| 77 | |
| 78 void addVisibleMethods(Map methodMap) { | |
| 79 // arrays don't have methods | |
| 80 } | |
| 81 | |
| 82 List getAllMethods() { | |
| 83 // arrays don't have methods | |
| 84 // JLS says arrays have methods of java.lang.Object. But | |
| 85 // JVMDI-JDI returns zero size list. We do the same here | |
| 86 // for consistency. | |
| 87 return new ArrayList(0); | |
| 88 } | |
| 89 | |
| 90 /* | |
| 91 * Find the type object, if any, of a component type of this array. | |
| 92 * The component type does not have to be immediate; e.g. this method | |
| 93 * can be used to find the component Foo of Foo[][]. | |
| 94 */ | |
| 95 public Type componentType() throws ClassNotLoadedException { | |
| 96 ArrayKlass k = (ArrayKlass) ref(); | |
| 97 if (k instanceof ObjArrayKlass) { | |
| 98 Klass elementKlass = ((ObjArrayKlass)k).getElementKlass(); | |
| 99 if (elementKlass == null) { | |
| 100 throw new ClassNotLoadedException(componentSignature()); | |
| 101 } else { | |
| 102 return vm.referenceType(elementKlass); | |
| 103 } | |
| 104 } else { | |
| 105 // It's a primitive type | |
| 106 return vm.primitiveTypeMirror(signature().charAt(1)); | |
| 107 } | |
| 108 } | |
| 109 | |
| 110 static boolean isComponentAssignable(Type destination, Type source) { | |
| 111 if (source instanceof PrimitiveType) { | |
| 112 // Assignment of primitive arrays requires identical | |
| 113 // component types. | |
| 114 return source.equals(destination); | |
| 115 } else { | |
| 116 if (destination instanceof PrimitiveType) { | |
| 117 return false; | |
| 118 } | |
| 119 | |
| 120 ReferenceTypeImpl refSource = (ReferenceTypeImpl)source; | |
| 121 ReferenceTypeImpl refDestination = (ReferenceTypeImpl)destination; | |
| 122 // Assignment of object arrays requires availability | |
| 123 // of widening conversion of component types | |
| 124 return refSource.isAssignableTo(refDestination); | |
| 125 } | |
| 126 } | |
| 127 | |
| 128 | |
| 129 /* | |
| 130 * Return true if an instance of the given reference type | |
| 131 * can be assigned to a variable of this type | |
| 132 */ | |
| 133 boolean isAssignableTo(ReferenceType destType) { | |
| 134 if (destType instanceof ArrayType) { | |
| 135 try { | |
| 136 Type destComponentType = ((ArrayType)destType).componentType(); | |
| 137 return isComponentAssignable(destComponentType, componentType()); | |
| 138 } catch (ClassNotLoadedException e) { | |
| 139 // One or both component types has not yet been | |
| 140 // loaded => can't assign | |
| 141 return false; | |
| 142 } | |
| 143 } else { | |
| 144 Symbol typeName = ((ReferenceTypeImpl)destType).typeNameAsSymbol(); | |
| 145 if (destType instanceof InterfaceType) { | |
| 146 // Every array type implements java.io.Serializable and | |
| 147 // java.lang.Cloneable. fixme in JVMDI-JDI, includes only | |
| 148 // Cloneable but not Serializable. | |
| 149 return typeName.equals(vm.javaLangCloneable()) || | |
| 150 typeName.equals(vm.javaIoSerializable()); | |
| 151 } else { | |
| 152 // Only valid ClassType assignee is Object | |
| 153 return typeName.equals(vm.javaLangObject()); | |
| 154 } | |
| 155 } | |
| 156 } | |
| 157 | |
| 158 List inheritedTypes() { | |
| 159 // arrays are derived from java.lang.Object and | |
| 160 // B[] is derived from A[] if B is derived from A. | |
| 161 // But JVMDI-JDI returns zero sized list and we do the | |
| 162 // same for consistency. | |
| 163 return new ArrayList(0); | |
| 164 } | |
| 165 | |
| 166 int getModifiers() { | |
| 167 /* | |
| 168 * For object arrays, the return values for Interface | |
| 169 * Accessible.isPrivate(), Accessible.isProtected(), | |
| 170 * etc... are the same as would be returned for the | |
| 171 * component type. Fetch the modifier bits from the | |
| 172 * component type and use those. | |
| 173 * | |
| 174 * For primitive arrays, the modifiers are always | |
| 175 * VMModifiers.FINAL | VMModifiers.PUBLIC | |
| 176 * | |
| 177 * Reference com.sun.jdi.Accessible.java. | |
| 178 */ | |
| 179 try { | |
| 180 Type t = componentType(); | |
| 181 if (t instanceof PrimitiveType) { | |
| 182 return VMModifiers.FINAL | VMModifiers.PUBLIC; | |
| 183 } else { | |
| 184 ReferenceType rt = (ReferenceType)t; | |
| 185 return rt.modifiers(); | |
| 186 } | |
| 187 } catch (ClassNotLoadedException cnle) { | |
| 188 cnle.printStackTrace(); | |
| 189 } | |
| 190 return -1; | |
| 191 } | |
| 192 | |
| 193 public String toString() { | |
| 194 return "array class " + name() + " (" + loaderString() + ")"; | |
| 195 } | |
| 196 | |
| 197 /* | |
| 198 * Save a pointless trip over the wire for these methods | |
| 199 * which have undefined results for arrays. | |
| 200 */ | |
| 201 public boolean isPrepared() { return true; } | |
| 202 public boolean isVerified() { return true; } | |
| 203 public boolean isInitialized() { return true; } | |
| 204 public boolean failedToInitialize() { return false; } | |
| 205 public boolean isAbstract() { return false; } | |
| 206 | |
| 207 /* | |
| 208 * Defined always to be true for arrays | |
| 209 */ | |
| 210 public boolean isFinal() { return true; } | |
| 211 } |