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
|
// Copyright (c) 2012 Ecma International. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
es5id: 15.2.3.6-4-95
description: >
Object.defineProperty will throw TypeError when name.configurable
= false, name.writable = false, desc.value and name.value are two
objects which refer to the different objects (8.12.9 step
10.a.ii.1)
includes: [propertyHelper.js]
---*/
var obj = {};
var obj1 = {
length: 10
};
Object.defineProperty(obj, "foo", {
value: obj1,
writable: false,
configurable: false
});
var obj2 = {
length: 20
};
try {
Object.defineProperty(obj, "foo", {
value: obj2
});
$ERROR("Expected an exception.");
} catch (e) {
verifyEqualTo(obj, "foo", obj1);
verifyNotWritable(obj, "foo");
verifyNotEnumerable(obj, "foo");
verifyNotConfigurable(obj, "foo");
if (!(e instanceof TypeError)) {
$ERROR("Expected TypeError, got " + e);
}
}
|
