1 /* 2 * Copyright 2013, Google LLC 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions are 6 * met: 7 * 8 * * Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * * Redistributions in binary form must reproduce the above 11 * copyright notice, this list of conditions and the following disclaimer 12 * in the documentation and/or other materials provided with the 13 * distribution. 14 * * Neither the name of Google LLC nor the names of its 15 * contributors may be used to endorse or promote products derived from 16 * this software without specific prior written permission. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 20 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 21 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 22 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 23 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 24 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 29 */ 30 31 package com.android.tools.smali.util; 32 33 import java.util.function.Function; 34 import java.util.Iterator; 35 36 import java.util.List; 37 38 public class CharSequenceUtils { 39 private static final Function<Object, String> TO_STRING = new Function<Object,String>() { 40 @Override 41 public String apply(Object o) { 42 return o.toString(); 43 } 44 }; 45 listHashCode(List<? extends CharSequence> list)46 public static int listHashCode(List<? extends CharSequence> list) { 47 return IteratorUtils.toList((Iterator)new TransformedIterator(list.iterator(), TO_STRING)).hashCode(); 48 } 49 listEquals(List<? extends CharSequence> list1, List<? extends CharSequence> list2)50 public static boolean listEquals(List<? extends CharSequence> list1, List<? extends CharSequence> list2) { 51 return IteratorUtils.toList((Iterator)new TransformedIterator(list1.iterator(), TO_STRING)).equals( 52 IteratorUtils.toList((Iterator)new TransformedIterator(list2.iterator(), TO_STRING))); 53 } 54 } 55