1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
|
/*
* Copyright (c) 2014, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
/**
* JDK-8042364: Make __proto__ ES6 draft compliant
*
* @test
* @run
*/
// check for Object.prototype.__proto__ accessor property
print("Object.prototype has __proto__?",
Object.prototype.hasOwnProperty("__proto__"))
var desc = Object.getOwnPropertyDescriptor(Object.prototype, "__proto__")
print("descriptor");
print(JSON.stringify(desc))
print("getter", desc.get)
print("setter", desc.set)
// no computed "__proto__" name, only identifier!
var p = {}
var obj = {
"__proto__" : p
}
if (Object.getPrototypeOf(obj) === p) {
fail("obj has wrong __proto__, allows computed __proto__!")
}
if (obj.__proto__ !== p) {
fail("__proto__ not created as normal property!")
}
if (Object.getPrototypeOf(obj) !== Object.prototype) {
fail("obj has wrong __proto__")
}
var obj2 = {
__proto__: p
}
if (Object.getPrototypeOf(obj2) !== p) {
fail("can't set __proto__ in object literal")
}
|
