| /* |
| * reserved comment block |
| * DO NOT REMOVE OR ALTER! |
| */ |
| package com.sun.org.apache.bcel.internal.generic; |
| |
| /* ==================================================================== |
| * The Apache Software License, Version 1.1 |
| * |
| * Copyright (c) 2001 The Apache Software Foundation. All rights |
| * reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * |
| * 2. Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in |
| * the documentation and/or other materials provided with the |
| * distribution. |
| * |
| * 3. The end-user documentation included with the redistribution, |
| * if any, must include the following acknowledgment: |
| * "This product includes software developed by the |
| * Apache Software Foundation (http://www.apache.org/)." |
| * Alternately, this acknowledgment may appear in the software itself, |
| * if and wherever such third-party acknowledgments normally appear. |
| * |
| * 4. The names "Apache" and "Apache Software Foundation" and |
| * "Apache BCEL" must not be used to endorse or promote products |
| * derived from this software without prior written permission. For |
| * written permission, please contact apache@apache.org. |
| * |
| * 5. Products derived from this software may not be called "Apache", |
| * "Apache BCEL", nor may "Apache" appear in their name, without |
| * prior written permission of the Apache Software Foundation. |
| * |
| * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED |
| * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
| * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
| * DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR |
| * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF |
| * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND |
| * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, |
| * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT |
| * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
| * SUCH DAMAGE. |
| * ==================================================================== |
| * |
| * This software consists of voluntary contributions made by many |
| * individuals on behalf of the Apache Software Foundation. For more |
| * information on the Apache Software Foundation, please see |
| * <http://www.apache.org/>. |
| */ |
| import com.sun.org.apache.bcel.internal.Constants; |
| import com.sun.org.apache.bcel.internal.Repository; |
| import com.sun.org.apache.bcel.internal.classfile.JavaClass; |
| |
| /** |
| * Denotes reference such as java.lang.String. |
| * |
| * @author <A HREF="mailto:markus.dahm@berlin.de">M. Dahm</A> |
| */ |
| public final class ObjectType extends ReferenceType { |
| private String class_name; // Class name of type |
| |
| /** |
| * @param class_name fully qualified class name, e.g. java.lang.String |
| */ |
| public ObjectType(String class_name) { |
| super(Constants.T_REFERENCE, "L" + class_name.replace('.', '/') + ";"); |
| this.class_name = class_name.replace('/', '.'); |
| } |
| |
| /** @return name of referenced class |
| */ |
| public String getClassName() { return class_name; } |
| |
| /** @return a hash code value for the object. |
| */ |
| public int hashCode() { return class_name.hashCode(); } |
| |
| /** @return true if both type objects refer to the same class. |
| */ |
| public boolean equals(Object type) { |
| return (type instanceof ObjectType)? |
| ((ObjectType)type).class_name.equals(class_name) : false; |
| } |
| |
| /** |
| * If "this" doesn't reference a class, it references an interface |
| * or a non-existant entity. |
| */ |
| public boolean referencesClass(){ |
| JavaClass jc = Repository.lookupClass(class_name); |
| if (jc == null) |
| return false; |
| else |
| return jc.isClass(); |
| } |
| |
| /** |
| * If "this" doesn't reference an interface, it references a class |
| * or a non-existant entity. |
| */ |
| public boolean referencesInterface(){ |
| JavaClass jc = Repository.lookupClass(class_name); |
| if (jc == null) |
| return false; |
| else |
| return !jc.isClass(); |
| } |
| |
| public boolean subclassOf(ObjectType superclass){ |
| if (this.referencesInterface() || superclass.referencesInterface()) |
| return false; |
| |
| return Repository.instanceOf(this.class_name, superclass.class_name); |
| } |
| |
| /** |
| * Java Virtual Machine Specification edition 2, 5.4.4 Access Control |
| */ |
| public boolean accessibleTo(ObjectType accessor) { |
| JavaClass jc = Repository.lookupClass(class_name); |
| |
| if(jc.isPublic()) { |
| return true; |
| } else { |
| JavaClass acc = Repository.lookupClass(accessor.class_name); |
| return acc.getPackageName().equals(jc.getPackageName()); |
| } |
| } |
| } |