| /* |
| * Copyright (c) 2010, 2013, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. Oracle designates this |
| * particular file as subject to the "Classpath" exception as provided |
| * by Oracle in the LICENSE file that accompanied this code. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| package jdk.nashorn.internal.runtime.arrays; |
| |
| import java.lang.reflect.Array; |
| |
| /** |
| * Iterator over a Java List. |
| */ |
| class JavaArrayIterator extends ArrayLikeIterator<Object> { |
| |
| /** Array to iterate over */ |
| protected final Object array; |
| |
| /** length of array */ |
| protected final long length; |
| |
| /** |
| * Constructor |
| * @param array array to iterate over |
| * @param includeUndefined should undefined elements be included in iteration |
| */ |
| protected JavaArrayIterator(final Object array, final boolean includeUndefined) { |
| super(includeUndefined); |
| assert array.getClass().isArray() : "expecting Java array object"; |
| this.array = array; |
| this.length = Array.getLength(array); |
| } |
| |
| /** |
| * Is the current index still inside the array |
| * @return true if inside the array |
| */ |
| protected boolean indexInArray() { |
| return index < length; |
| } |
| |
| @Override |
| public Object next() { |
| return Array.get(array, (int)bumpIndex()); |
| } |
| |
| @Override |
| public long getLength() { |
| return length; |
| } |
| |
| @Override |
| public boolean hasNext() { |
| return indexInArray(); |
| } |
| |
| @Override |
| public void remove() { |
| throw new UnsupportedOperationException("remove"); |
| } |
| } |