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40 lines
1.2 KiB
JavaScript
40 lines
1.2 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: Let binding collision with existing lexical 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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---*/
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let test262Let;
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const test262Const = null;
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class test262Class {}
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assert.throws(SyntaxError, function() {
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$262.evalScript('var x; let test262Let;');
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}, '`let` binding');
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assert.throws(ReferenceError, function() {
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x;
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}, 'No bindings created for script containing `let` redeclaration');
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assert.throws(SyntaxError, function() {
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$262.evalScript('var x; let test262Const;');
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}, '`const` binding');
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assert.throws(ReferenceError, function() {
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x;
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}, 'No bindings created for script containing `const` redeclaration');
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assert.throws(SyntaxError, function() {
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$262.evalScript('var x; let test262Class;');
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}, '`class` binding');
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assert.throws(ReferenceError, function() {
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x;
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}, 'No bindings created for script containing `class` redeclaration');
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