/*
 * Copyright 2009 Google Inc.
 * 
 * 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.gwt.collections;

/**
 * The standard byte code implementation of an immutable array.
 * 
 * @param <E> The type stored in the array elements
 */
public class ImmutableArrayImpl<E> extends ImmutableArray<E> {

  final E[] elems;

  ImmutableArrayImpl(E[] elems) {
    Assertions.assertNotNull(elems);
    this.elems = elems;
  }

  @Override
  public E get(int index) {
    Assertions.assertIndexInRange(index, 0, elems.length);
    return elems[index];
  }

  @Override
  public int size() {
    return elems.length;
  }

}