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 com.google.common.annotations.J2ktIncompatible; 22 import org.checkerframework.checker.nullness.qual.Nullable; 23 24 @GwtCompatible(emulated = true) 25 @ElementTypesAreNonnullByDefault 26 abstract class IndexedImmutableSet<E> extends ImmutableSet<E> { get(int index)27 abstract E get(int index); 28 29 @Override iterator()30 public UnmodifiableIterator<E> iterator() { 31 return asList().iterator(); 32 } 33 34 @Override 35 @GwtIncompatible copyIntoArray(@ullable Object[] dst, int offset)36 int copyIntoArray(@Nullable Object[] dst, int offset) { 37 return asList().copyIntoArray(dst, offset); 38 } 39 40 @Override createAsList()41 ImmutableList<E> createAsList() { 42 return new ImmutableList<E>() { 43 @Override 44 public E get(int index) { 45 return IndexedImmutableSet.this.get(index); 46 } 47 48 @Override 49 boolean isPartialView() { 50 return IndexedImmutableSet.this.isPartialView(); 51 } 52 53 @Override 54 public int size() { 55 return IndexedImmutableSet.this.size(); 56 } 57 58 // redeclare to help optimizers with b/310253115 59 @SuppressWarnings("RedundantOverride") 60 @Override 61 @J2ktIncompatible // serialization 62 @GwtIncompatible // serialization 63 Object writeReplace() { 64 return super.writeReplace(); 65 } 66 }; 67 } 68 69 // redeclare to help optimizers with b/310253115 70 @SuppressWarnings("RedundantOverride") 71 @Override 72 @J2ktIncompatible // serialization 73 @GwtIncompatible // serialization 74 Object writeReplace() { 75 return super.writeReplace(); 76 } 77 } 78