test262/test/language/global-code/decl-lex-configurable-globa...

33 lines
1.1 KiB
JavaScript

// Copyright (C) 2016 the V8 project authors. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
esid: sec-globaldeclarationinstantiation
es6id: 15.1.8
description: Lexical declarations "shadow" configurable global properties
info: |
[...]
5. For each name in lexNames, do
[...]
c. Let hasRestrictedGlobal be ? envRec.HasRestrictedGlobalProperty(name).
d. If hasRestrictedGlobal is true, throw a SyntaxError exception.
[...]
16. For each element d in lexDeclarations do
a. NOTE Lexically declared names are only instantiated here but not
initialized.
b. For each element dn of the BoundNames of d do
i. If IsConstantDeclaration of d is true, then
1. Perform ? envRec.CreateImmutableBinding(dn, true).
ii. Else,
1. Perform ? envRec.CreateMutableBinding(dn, false).
includes: [propertyHelper.js]
---*/
let Array;
assert.sameValue(Array, undefined);
assert.sameValue(typeof this.Array, 'function');
verifyNotEnumerable(this, 'Array');
verifyWritable(this, 'Array');
verifyConfigurable(this, 'Array');