mirror of https://github.com/tc39/test262.git
32 lines
1.0 KiB
JavaScript
32 lines
1.0 KiB
JavaScript
// Copyright (C) 2016 the V8 project authors. All rights reserved.
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// This code is governed by the BSD license found in the LICENSE file.
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/*---
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esid: sec-globaldeclarationinstantiation
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es6id: 15.1.8
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description: >
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Let binding collision with non-configurable global property (not defined
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through a declaration)
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info: |
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[...]
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5. For each name in lexNames, do
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a. If envRec.HasVarDeclaration(name) is true, throw a SyntaxError
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exception.
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b. If envRec.HasLexicalDeclaration(name) is true, throw a SyntaxError
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exception.
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c. Let hasRestrictedGlobal be ? envRec.HasRestrictedGlobalProperty(name).
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d. If hasRestrictedGlobal is true, throw a SyntaxError exception.
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---*/
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Object.defineProperty(this, 'test262Configurable', { configurable: true });
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Object.defineProperty(this, 'test262NonConfigurable', { configurable: false });
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$.evalScript('let test262Configurable;');
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assert.throws(SyntaxError, function() {
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$.evalScript('var x; let test262NonConfigurable;');
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});
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assert.throws(ReferenceError, function() {
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x;
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});
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