/*
    * Copyright (C) 2009 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 java.util.Collection;
  import java.util.List;
  
  import javax.annotation.Nullable;
  
  /**
   * GWT emulated version of {@link ImmutableList}.
   * TODO(cpovirk): more doc
   *
   * @author Hayward Chan
   */
  abstract class ForwardingImmutableList<E> extends ImmutableList<E> {
  
    ForwardingImmutableList() {
    }
  
    abstract List<E> delegateList();
  
    public int indexOf(@Nullable Object object) {
      return delegateList().indexOf(object);
    }
  
    public int lastIndexOf(@Nullable Object object) {
      return delegateList().lastIndexOf(object);
    }
  
    public E get(int index) {
      return delegateList().get(index);
    }
  
    public ImmutableList<E> subList(int fromIndex, int toIndex) {
      return unsafeDelegateList(delegateList().subList(fromIndex, toIndex));
    }
  
    @Override public Object[] toArray() {
      // Note that ArrayList.toArray() doesn't work here because it returns E[]
      // instead of Object[].
      return delegateList().toArray(new Object[size()]);
    }
  
    @Override public boolean equals(Object obj) {
      return delegateList().equals(obj);
    }
  
    @Override public int hashCode() {
      return delegateList().hashCode();
    }
  
    @Override public UnmodifiableIterator<E> iterator() {
      return Iterators.unmodifiableIterator(delegateList().iterator());
    }
  
    @Override public boolean contains(@Nullable Object object) {
      return object != null && delegateList().contains(object);
    }
  
    @Override public boolean containsAll(Collection<?> targets) {
      return delegateList().containsAll(targets);
    }
  
    public int size() {
      return delegateList().size();
    }
  
    @Override public boolean isEmpty() {
      return delegateList().isEmpty();
    }
  
    @Override public <T> T[] toArray(T[] other) {
      return delegateList().toArray(other);
    }
  
    @Override public String toString() {
      return delegateList().toString();
    }
  }