Tue, 13 Oct 2015 18:43:30 +0300
Merge
aoqi@0 | 1 | /* |
aoqi@0 | 2 | * Copyright (c) 2014, Oracle and/or its affiliates. All rights reserved. |
aoqi@0 | 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
attila@962 | 4 | * |
aoqi@0 | 5 | * This code is free software; you can redistribute it and/or modify it |
aoqi@0 | 6 | * under the terms of the GNU General Public License version 2 only, as |
aoqi@0 | 7 | * published by the Free Software Foundation. |
attila@962 | 8 | * |
aoqi@0 | 9 | * This code is distributed in the hope that it will be useful, but WITHOUT |
aoqi@0 | 10 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
aoqi@0 | 11 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
aoqi@0 | 12 | * version 2 for more details (a copy is included in the LICENSE file that |
aoqi@0 | 13 | * accompanied this code). |
attila@962 | 14 | * |
aoqi@0 | 15 | * You should have received a copy of the GNU General Public License version |
aoqi@0 | 16 | * 2 along with this work; if not, write to the Free Software Foundation, |
aoqi@0 | 17 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
attila@962 | 18 | * |
aoqi@0 | 19 | * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
aoqi@0 | 20 | * or visit www.oracle.com if you need additional information or have any |
aoqi@0 | 21 | * questions. |
aoqi@0 | 22 | */ |
aoqi@0 | 23 | |
aoqi@0 | 24 | |
aoqi@0 | 25 | /** |
aoqi@0 | 26 | * JDK-8030197: Nashorn: Object.defineProperty() can be lured to change fixed NaN property |
aoqi@0 | 27 | * |
aoqi@0 | 28 | * @test |
aoqi@0 | 29 | * @run |
aoqi@0 | 30 | */ |
aoqi@0 | 31 | |
aoqi@0 | 32 | function str(n) { |
aoqi@0 | 33 | var a = new Uint8Array(new Float64Array([n]).buffer); |
aoqi@0 | 34 | return Array.apply(null, a).reduceRight( |
aoqi@0 | 35 | function(acc, v){ |
aoqi@0 | 36 | return acc + (v < 10 ? "0" : "") + v.toString(16); |
aoqi@0 | 37 | }, ""); |
aoqi@0 | 38 | } |
aoqi@0 | 39 | |
aoqi@0 | 40 | var o = Object.defineProperty({}, "NaN", { value: NaN }) |
aoqi@0 | 41 | var str1 = str(o.NaN); |
aoqi@0 | 42 | Object.defineProperty(o, "NaN", { value: 0/0 }) |
aoqi@0 | 43 | var str2 = str(o.NaN); |
aoqi@0 | 44 | if (str1 != str2) { |
aoqi@0 | 45 | fail("NaN bit pattern changed"); |
aoqi@0 | 46 | } |