| /* |
| * Copyright 2013, Google Inc. |
| * All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions are |
| * met: |
| * |
| * * Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * * 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. |
| * * Neither the name of Google Inc. nor the names of its |
| * contributors may be used to endorse or promote products derived from |
| * this software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| * "AS IS" AND ANY EXPRESS 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 COPYRIGHT |
| * OWNER OR 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. |
| */ |
| |
| package org.jf.dexlib2.analysis.util; |
| |
| import org.jf.dexlib2.analysis.TypeProto; |
| import org.jf.dexlib2.analysis.UnresolvedClassException; |
| |
| import javax.annotation.Nonnull; |
| import javax.annotation.Nullable; |
| import java.util.Iterator; |
| import java.util.NoSuchElementException; |
| |
| public class TypeProtoUtils { |
| /** |
| * Get the chain of superclasses of the given class. The first element will be the immediate superclass followed by |
| * it's superclass, etc. up to java.lang.Object. |
| * |
| * Returns an empty iterable if called on java.lang.Object or a primitive. |
| * |
| * If any class in the superclass chain can't be resolved, the iterable will return Ujava/lang/Object; to represent |
| * the unknown class. |
| * |
| * @return An iterable containing the superclasses of this class. |
| */ |
| @Nonnull |
| public static Iterable<TypeProto> getSuperclassChain(@Nonnull final TypeProto typeProto) { |
| return new Iterable<TypeProto>() { |
| |
| @Override public Iterator<TypeProto> iterator() { |
| return new Iterator<TypeProto>() { |
| @Nullable private TypeProto type = getSuperclassAsTypeProto(typeProto); |
| |
| @Override public boolean hasNext() { |
| return type != null; |
| } |
| |
| @Override public TypeProto next() { |
| TypeProto type = this.type; |
| if (type == null) { |
| throw new NoSuchElementException(); |
| } |
| |
| this.type = getSuperclassAsTypeProto(type); |
| return type; |
| } |
| |
| @Override public void remove() { |
| throw new UnsupportedOperationException(); |
| } |
| }; |
| } |
| }; |
| } |
| |
| @Nullable |
| public static TypeProto getSuperclassAsTypeProto(@Nonnull TypeProto type) { |
| try { |
| String next = type.getSuperclass(); |
| if (next != null) { |
| return type.getClassPath().getClass(next); |
| } else { |
| return null; |
| } |
| } catch (UnresolvedClassException ex) { |
| return type.getClassPath().getUnknownClass(); |
| } |
| } |
| } |