1/*
2 * Copyright (c) 2010, 2013, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.  Oracle designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Oracle in the LICENSE file that accompanied this code.
10 *
11 * This code is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 * or visit www.oracle.com if you need additional information or have any
23 * questions.
24 */
25
26package jdk.nashorn.internal.runtime.arrays;
27
28import static jdk.nashorn.internal.runtime.ECMAErrors.typeError;
29
30import jdk.nashorn.internal.objects.Global;
31import jdk.nashorn.internal.runtime.PropertyDescriptor;
32
33/**
34 * ArrayData after the array has been sealed by Object.seal call.
35 */
36class SealedArrayFilter extends ArrayFilter {
37    SealedArrayFilter(final ArrayData underlying) {
38        super(underlying);
39    }
40
41    @Override
42    public ArrayData copy() {
43        return new SealedArrayFilter(underlying.copy());
44    }
45
46    @Override
47    public ArrayData slice(final long from, final long to) {
48        return getUnderlying().slice(from, to);
49    }
50
51    @Override
52    public boolean canDelete(final int index, final boolean strict) {
53        return canDelete(ArrayIndex.toLongIndex(index), strict);
54    }
55
56    @Override
57    public boolean canDelete(final long longIndex, final boolean strict) {
58        if (strict) {
59            throw typeError("cant.delete.property", Long.toString(longIndex), "sealed array");
60        }
61        return false;
62    }
63
64    @Override
65    public PropertyDescriptor getDescriptor(final Global global, final int index) {
66        return global.newDataDescriptor(getObject(index), false, true, true);
67    }
68}
69