/*
 * Copyright (C) 2012 The Guava Authors
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.google.common.collect;

import com.google.common.annotations.GwtCompatible;
import com.google.common.annotations.GwtIncompatible;
import java.util.function.Consumer;

An ImmutableAsList implementation specialized for when the delegate collection is already backed by an ImmutableList or array.
Author:Louis Wasserman
/** * An {@link ImmutableAsList} implementation specialized for when the delegate collection is already * backed by an {@code ImmutableList} or array. * * @author Louis Wasserman */
@GwtCompatible(emulated = true) @SuppressWarnings("serial") // uses writeReplace, not default serialization class RegularImmutableAsList<E> extends ImmutableAsList<E> { private final ImmutableCollection<E> delegate; private final ImmutableList<? extends E> delegateList; RegularImmutableAsList(ImmutableCollection<E> delegate, ImmutableList<? extends E> delegateList) { this.delegate = delegate; this.delegateList = delegateList; } RegularImmutableAsList(ImmutableCollection<E> delegate, Object[] array) { this(delegate, ImmutableList.<E>asImmutableList(array)); } @Override ImmutableCollection<E> delegateCollection() { return delegate; } ImmutableList<? extends E> delegateList() { return delegateList; } @SuppressWarnings("unchecked") // safe covariant cast! @Override public UnmodifiableListIterator<E> listIterator(int index) { return (UnmodifiableListIterator<E>) delegateList.listIterator(index); } @GwtIncompatible // not present in emulated superclass @Override public void forEach(Consumer<? super E> action) { delegateList.forEach(action); } @GwtIncompatible // not present in emulated superclass @Override int copyIntoArray(Object[] dst, int offset) { return delegateList.copyIntoArray(dst, offset); } @Override public E get(int index) { return delegateList.get(index); } }