1 /* 2 * Copyright (C) 2018 The Guava Authors 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package com.google.common.collect; 18 19 import com.google.common.annotations.GwtCompatible; 20 import com.google.common.annotations.GwtIncompatible; 21 import org.checkerframework.checker.nullness.qual.Nullable; 22 23 @GwtCompatible(emulated = true) 24 @ElementTypesAreNonnullByDefault 25 abstract class IndexedImmutableSet<E> extends ImmutableSet<E> { get(int index)26 abstract E get(int index); 27 28 @Override iterator()29 public UnmodifiableIterator<E> iterator() { 30 return asList().iterator(); 31 } 32 33 @Override 34 @GwtIncompatible copyIntoArray(@ullable Object[] dst, int offset)35 int copyIntoArray(@Nullable Object[] dst, int offset) { 36 return asList().copyIntoArray(dst, offset); 37 } 38 39 @Override createAsList()40 ImmutableList<E> createAsList() { 41 return new ImmutableList<E>() { 42 @Override 43 public E get(int index) { 44 return IndexedImmutableSet.this.get(index); 45 } 46 47 @Override 48 boolean isPartialView() { 49 return IndexedImmutableSet.this.isPartialView(); 50 } 51 52 @Override 53 public int size() { 54 return IndexedImmutableSet.this.size(); 55 } 56 }; 57 } 58 } 59