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 26 package jdk.nashorn.internal.runtime.arrays; 27 28 import static jdk.nashorn.internal.runtime.ECMAErrors.typeError; 29 30 import jdk.nashorn.internal.objects.Global; 31 import jdk.nashorn.internal.runtime.PropertyDescriptor; 32 33 /** 34 * ArrayData after the array has been sealed by Object.seal call. 35 */ 36 class SealedArrayFilter extends ArrayFilter { SealedArrayFilter(final ArrayData underlying)37 SealedArrayFilter(final ArrayData underlying) { 38 super(underlying); 39 } 40 41 @Override copy()42 public ArrayData copy() { 43 return new SealedArrayFilter(underlying.copy()); 44 } 45 46 @Override slice(final long from, final long to)47 public ArrayData slice(final long from, final long to) { 48 return getUnderlying().slice(from, to); 49 } 50 51 @Override canDelete(final int index, final boolean strict)52 public boolean canDelete(final int index, final boolean strict) { 53 return canDelete(ArrayIndex.toLongIndex(index), strict); 54 } 55 56 @Override canDelete(final long longIndex, final boolean strict)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 getDescriptor(final Global global, final int index)65 public PropertyDescriptor getDescriptor(final Global global, final int index) { 66 return global.newDataDescriptor(getObject(index), false, true, true); 67 } 68 } 69