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| 1 | /* | ||
| 2 | * Copyright (c) 1998, 1999, 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. Oracle designates this | ||
| 8 | * particular file as subject to the "Classpath" exception as provided | ||
| 9 | * by Oracle in the LICENSE file that accompanied this code. | ||
| 10 | * | ||
| 11 | * This code is distributed in the hope that it will be useful, but WITHOUT | ||
| 12 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | ||
| 13 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | ||
| 14 | * version 2 for more details (a copy is included in the LICENSE file that | ||
| 15 | * accompanied this code). | ||
| 16 | * | ||
| 17 | * You should have received a copy of the GNU General Public License version | ||
| 18 | * 2 along with this work; if not, write to the Free Software Foundation, | ||
| 19 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | ||
| 20 | * | ||
| 21 | * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA | ||
| 22 | * or visit www.oracle.com if you need additional information or have any | ||
| 23 | * questions. | ||
| 24 | */ | ||
| 25 | |||
| 26 | package com.sun.tools.jdi; | ||
| 27 | |||
| 28 | import com.sun.jdi.*; | ||
| 29 | |||
| 30 | import java.util.List; | ||
| 31 | import java.util.ArrayList; | ||
| 32 | import java.util.Map; | ||
| 33 | import java.util.Iterator; | ||
| 34 | import java.util.Collections; | ||
| 35 | import java.lang.ref.SoftReference; | ||
| 36 | |||
| 37 | public class InterfaceTypeImpl extends ReferenceTypeImpl | ||
| 38 | implements InterfaceType { | ||
| 39 | |||
| 40 | private SoftReference<List<InterfaceType>> superinterfacesRef = null; | ||
| 41 | |||
| 42 | protected InterfaceTypeImpl(VirtualMachine aVm,long aRef) { | ||
| 43 | super(aVm, aRef); | ||
| 44 | } | ||
| 45 | |||
| 46 | public List<InterfaceType> superinterfaces() { | ||
| 47 | List<InterfaceType> superinterfaces = (superinterfacesRef == null) ? null : | ||
| 48 | superinterfacesRef.get(); | ||
| 49 | if (superinterfaces == null) { | ||
| 50 | superinterfaces = getInterfaces(); | ||
| 51 | superinterfaces = Collections.unmodifiableList(superinterfaces); | ||
| 52 | superinterfacesRef = new SoftReference<List<InterfaceType>>(superinterfaces); | ||
| 53 | } | ||
| 54 | return superinterfaces; | ||
| 55 | } | ||
| 56 | |||
| 57 | public List<InterfaceType> subinterfaces() { | ||
| 58 | List<InterfaceType> subs = new ArrayList<InterfaceType>(); | ||
| 59 | for (ReferenceType refType : vm.allClasses()) { | ||
| 60 | if (refType instanceof InterfaceType) { | ||
| 61 | InterfaceType interfaze = (InterfaceType)refType; | ||
| 62 | if (interfaze.isPrepared() && interfaze.superinterfaces().contains(this)) { | ||
| 63 | subs.add(interfaze); | ||
| 64 | } | ||
| 65 | } | ||
| 66 | } | ||
| 67 | return subs; | ||
| 68 | } | ||
| 69 | |||
| 70 | public List<ClassType> implementors() { | ||
| 71 | List<ClassType> implementors = new ArrayList<ClassType>(); | ||
| 72 | for (ReferenceType refType : vm.allClasses()) { | ||
| 73 | if (refType instanceof ClassType) { | ||
| 74 | ClassType clazz = (ClassType)refType; | ||
| 75 | if (clazz.isPrepared() && clazz.interfaces().contains(this)) { | ||
| 76 | implementors.add(clazz); | ||
| 77 | } | ||
| 78 | } | ||
| 79 | } | ||
| 80 | return implementors; | ||
| 81 | } | ||
| 82 | |||
| 83 | void addVisibleMethods(Map<String, Method> methodMap) { | ||
| 84 | /* | ||
| 85 | * Add methods from | ||
| 86 | * parent types first, so that the methods in this class will | ||
| 87 | * overwrite them in the hash table | ||
| 88 | */ | ||
| 89 | |||
| 90 | for (InterfaceType interfaze : superinterfaces()) { | ||
| 91 | ((InterfaceTypeImpl)interfaze).addVisibleMethods(methodMap); | ||
| 92 | } | ||
| 93 | |||
| 94 | addToMethodMap(methodMap, methods()); | ||
| 95 | } | ||
| 96 | |||
| 97 | public List<Method> allMethods() { | ||
| 98 | ArrayList<Method> list = new ArrayList<Method>(methods()); | ||
| 99 | |||
| 100 | /* | ||
| 101 | * It's more efficient if don't do this | ||
| 102 | * recursively. | ||
| 103 | */ | ||
| 104 | for (InterfaceType interfaze : allSuperinterfaces()) { | ||
| 105 | list.addAll(interfaze.methods()); | ||
| 106 | } | ||
| 107 | |||
| 108 | return list; | ||
| 109 | } | ||
| 110 | |||
| 111 | List<InterfaceType> allSuperinterfaces() { | ||
| 112 | ArrayList<InterfaceType> list = new ArrayList<InterfaceType>(); | ||
| 113 | addSuperinterfaces(list); | ||
| 114 | return list; | ||
| 115 | } | ||
| 116 | |||
| 117 | void addSuperinterfaces(List<InterfaceType> list) { | ||
| 118 | /* | ||
| 119 | * This code is a little strange because it | ||
| 120 | * builds the list with a more suitable order than the | ||
| 121 | * depth-first approach a normal recursive solution would | ||
| 122 | * take. Instead, all direct superinterfaces precede all | ||
| 123 | * indirect ones. | ||
| 124 | */ | ||
| 125 | |||
| 126 | /* | ||
| 127 | * Get a list of direct superinterfaces that's not already in the | ||
| 128 | * list being built. | ||
| 129 | */ | ||
| 130 | List<InterfaceType> immediate = new ArrayList<InterfaceType>(superinterfaces()); | ||
| 131 | Iterator iter = immediate.iterator(); | ||
| 132 | while (iter.hasNext()) { | ||
| 133 | InterfaceType interfaze = (InterfaceType)iter.next(); | ||
| 134 | if (list.contains(interfaze)) { | ||
| 135 | iter.remove(); | ||
| 136 | } | ||
| 137 | } | ||
| 138 | |||
| 139 | /* | ||
| 140 | * Add all new direct superinterfaces | ||
| 141 | */ | ||
| 142 | list.addAll(immediate); | ||
| 143 | |||
| 144 | /* | ||
| 145 | * Recurse for all new direct superinterfaces. | ||
| 146 | */ | ||
| 147 | iter = immediate.iterator(); | ||
| 148 | while (iter.hasNext()) { | ||
| 149 | InterfaceTypeImpl interfaze = (InterfaceTypeImpl)iter.next(); | ||
| 150 | interfaze.addSuperinterfaces(list); | ||
| 151 | } | ||
| 152 | } | ||
| 153 | |||
| 154 | boolean isAssignableTo(ReferenceType type) { | ||
| 155 | |||
| 156 | // Exact match? | ||
| 157 | if (this.equals(type)) { | ||
| 158 | return true; | ||
| 159 | } else { | ||
| 160 | // Try superinterfaces. | ||
| 161 | for (InterfaceType interfaze : superinterfaces()) { | ||
| 162 | if (((InterfaceTypeImpl)interfaze).isAssignableTo(type)) { | ||
| 163 | return true; | ||
| 164 | } | ||
| 165 | } | ||
| 166 | |||
| 167 | return false; | ||
| 168 | } | ||
| 169 | } | ||
| 170 | |||
| 171 | List<InterfaceType> inheritedTypes() { | ||
| 172 | return superinterfaces(); | ||
| 173 | } | ||
| 174 | |||
| 175 | public boolean isInitialized() { | ||
| 176 | return isPrepared(); | ||
| 177 | } | ||
| 178 | |||
| 179 | public String toString() { | ||
| 180 | return "interface " + name() + " (" + loaderString() + ")"; | ||
| 181 | } | ||
| 182 | } | ||