1/* 2 * Copyright 2012, Google Inc. 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions are 7 * met: 8 * 9 * * Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * * Redistributions in binary form must reproduce the above 12 * copyright notice, this list of conditions and the following disclaimer 13 * in the documentation and/or other materials provided with the 14 * distribution. 15 * * Neither the name of Google Inc. nor the names of its 16 * contributors may be used to endorse or promote products derived from 17 * this software without specific prior written permission. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 20 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 21 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 22 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 23 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 24 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 25 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 26 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 27 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 28 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 29 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 30 */ 31 32package org.jf.dexlib2.dexbacked.util; 33 34import com.google.common.collect.ImmutableSet; 35import org.jf.dexlib2.base.BaseMethodParameter; 36import org.jf.dexlib2.iface.Annotation; 37import org.jf.dexlib2.iface.MethodParameter; 38 39import javax.annotation.Nonnull; 40import javax.annotation.Nullable; 41import java.util.Iterator; 42import java.util.List; 43import java.util.Set; 44 45public class ParameterIterator implements Iterator<MethodParameter> { 46 private final Iterator<? extends CharSequence> parameterTypes; 47 private final Iterator<? extends Set<? extends Annotation>> parameterAnnotations; 48 private final Iterator<String> parameterNames; 49 50 public ParameterIterator(@Nonnull List<? extends CharSequence> parameterTypes, 51 @Nonnull List<? extends Set<? extends Annotation>> parameterAnnotations, 52 @Nonnull Iterator<String> parameterNames) { 53 this.parameterTypes = parameterTypes.iterator(); 54 this.parameterAnnotations = parameterAnnotations.iterator(); 55 this.parameterNames = parameterNames; 56 } 57 58 @Override public boolean hasNext() { 59 return parameterTypes.hasNext(); 60 } 61 62 @Override public MethodParameter next() { 63 @Nonnull final String type = parameterTypes.next().toString(); 64 @Nonnull final Set<? extends Annotation> annotations; 65 @Nullable final String name; 66 67 if (parameterAnnotations.hasNext()) { 68 annotations = parameterAnnotations.next(); 69 } else { 70 annotations = ImmutableSet.of(); 71 } 72 73 if (parameterNames.hasNext()) { 74 name = parameterNames.next(); 75 } else { 76 name = null; 77 } 78 79 return new BaseMethodParameter() { 80 @Nonnull @Override public Set<? extends Annotation> getAnnotations() { return annotations; } 81 @Nullable @Override public String getName() { return name; } 82 @Nonnull @Override public String getType() { return type; } 83 }; 84 } 85 86 @Override public void remove() { 87 throw new UnsupportedOperationException(); 88 } 89} 90