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
|
// Copyright (C) 2016 the V8 project authors. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
desc: Variable binding is set to `undefined`
template: eval-global
info: |
B.3.3.3 Changes to EvalDeclarationInstantiation
[...]
i. If varEnvRec is a global Environment Record, then
i. Perform ? varEnvRec.CreateGlobalFunctionBinding(F, undefined, true).
[...]
8.1.1.4.18 CreateGlobalFunctionBinding
[...]
5. If existingProp is undefined or existingProp.[[Configurable]] is true,
then
[...]
6. Else,
a. Let desc be the PropertyDescriptor{[[Value]]: V }.
[...]
includes: [fnGlobalObject.js, propertyHelper.js]
---*/
//- setup
Object.defineProperty(fnGlobalObject(), 'f', {
value: 'x',
enumerable: true,
writable: true,
configurable: false
});
//- before
var global = fnGlobalObject();
assert.sameValue(f, undefined, "binding is initialized to `undefined`");
verifyProperty(global, "f", {
enumerable: true,
writable: true,
configurable: false
});
|
