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 jdk.nashorn.internal.objects.Global; 29 import static jdk.nashorn.internal.runtime.ECMAErrors.typeError; 30 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 { 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 if (strict) { 54 throw typeError("cant.delete.property", Integer.toString(index), "sealed array"); 55 } 56 return false; 57 } 58 59 @Override 60 public boolean canDelete(final long fromIndex, final long toIndex, final boolean strict) { 61 return canDelete((int) fromIndex, strict); 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 }