test/script/basic/JDK-8047764.js

Mon, 22 Sep 2014 13:28:28 +0200

author
hannesw
date
Mon, 22 Sep 2014 13:28:28 +0200
changeset 1020
9ee8fd4a7266
permissions
-rw-r--r--

8047764: Indexed or polymorphic set on global affects Object.prototype
Reviewed-by: lagergren, attila

hannesw@1020 1 /*
hannesw@1020 2 * Copyright (c) 2014, Oracle and/or its affiliates. All rights reserved.
hannesw@1020 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
hannesw@1020 4 *
hannesw@1020 5 * This code is free software; you can redistribute it and/or modify it
hannesw@1020 6 * under the terms of the GNU General Public License version 2 only, as
hannesw@1020 7 * published by the Free Software Foundation.
hannesw@1020 8 *
hannesw@1020 9 * This code is distributed in the hope that it will be useful, but WITHOUT
hannesw@1020 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
hannesw@1020 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
hannesw@1020 12 * version 2 for more details (a copy is included in the LICENSE file that
hannesw@1020 13 * accompanied this code).
hannesw@1020 14 *
hannesw@1020 15 * You should have received a copy of the GNU General Public License version
hannesw@1020 16 * 2 along with this work; if not, write to the Free Software Foundation,
hannesw@1020 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
hannesw@1020 18 *
hannesw@1020 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
hannesw@1020 20 * or visit www.oracle.com if you need additional information or have any
hannesw@1020 21 * questions.
hannesw@1020 22 */
hannesw@1020 23
hannesw@1020 24 /**
hannesw@1020 25 * JDK-8047764: Indexed or polymorphic set on global affects Object.prototype
hannesw@1020 26 *
hannesw@1020 27 * @test
hannesw@1020 28 * @run
hannesw@1020 29 */
hannesw@1020 30
hannesw@1020 31 // Test global set operation on properties defined in Object.prototype
hannesw@1020 32
hannesw@1020 33 Object.defineProperty(Object.prototype, "prop1", { get: function() { return 1; }, set: function(v) { print("setting prop1: " + v); }});
hannesw@1020 34 Object.defineProperty(Object.prototype, "prop2", { value: 1, writable: false, configurable: false });
hannesw@1020 35
hannesw@1020 36 try {
hannesw@1020 37 prop1 = 1;
hannesw@1020 38 print("prop 1: " + prop2);
hannesw@1020 39 } catch (e) {
hannesw@1020 40 print(e.name);
hannesw@1020 41 }
hannesw@1020 42
hannesw@1020 43 try {
hannesw@1020 44 prop2 = 2;
hannesw@1020 45 print("prop 2: " + prop2);
hannesw@1020 46 } catch (e) {
hannesw@1020 47 print(e.name);
hannesw@1020 48 }
hannesw@1020 49
hannesw@1020 50 // Make sure various ways of setting global toString don't affect Object.prototype.toString
hannesw@1020 51
hannesw@1020 52 function checkToString() {
hannesw@1020 53 print(global);
hannesw@1020 54 print(Object.prototype);
hannesw@1020 55 print(global.toString === Object.prototype.toString);
hannesw@1020 56 print(objProtoToString === Object.prototype.toString);
hannesw@1020 57 }
hannesw@1020 58
hannesw@1020 59 var global = this;
hannesw@1020 60 var objProtoToString = Object.prototype.toString;
hannesw@1020 61 global["toString"] = function() { return "global toString 1"; };
hannesw@1020 62 checkToString();
hannesw@1020 63 global.toString = function() { return "global toString 2"; };
hannesw@1020 64 checkToString();
hannesw@1020 65 toString = function() { return "global toString 3"; };
hannesw@1020 66 checkToString();
hannesw@1020 67
hannesw@1020 68 // Test setters on 'with' object
hannesw@1020 69
hannesw@1020 70 var p = { prop3: 3, toString: function() { return "[object p]"; }};
hannesw@1020 71 Object.defineProperty(p, "prop4", { get: function() { print("get", this); return 4; }, set: function(v) { print("set", this, v); }});
hannesw@1020 72 var o = Object.create(p);
hannesw@1020 73 o.toString = function() { return "[object o]"; };
hannesw@1020 74
hannesw@1020 75 with(o) {
hannesw@1020 76 (function() {
hannesw@1020 77 var m = 5;
hannesw@1020 78 (function() {
hannesw@1020 79 print(prop3);
hannesw@1020 80 prop3 = m;
hannesw@1020 81 print(prop3);
hannesw@1020 82 print(prop4);
hannesw@1020 83 prop4 = m;
hannesw@1020 84 print(prop4);
hannesw@1020 85 })();
hannesw@1020 86 })();
hannesw@1020 87 }
hannesw@1020 88
hannesw@1020 89 print(o.hasOwnProperty("prop3"));
hannesw@1020 90 print(o.prop3);
hannesw@1020 91 print(p.prop3);
hannesw@1020 92 print(o.hasOwnProperty("prop4"));
hannesw@1020 93 print(o.prop4);
hannesw@1020 94 print(p.prop4);

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