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784824895d
Closes #572 Introduce tests for new semantics for ES2015 features such as lexically-scoped bindings. Also add tests for semantics defined in prior editions of the specification but not yet covered in this test suite.
32 lines
948 B
JavaScript
32 lines
948 B
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-evaldeclarationinstantiation
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description: Variable collision with global lexical binding
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info: |
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[...]
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5. If strict is false, then
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a. If varEnvRec is a global Environment Record, then
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i. For each name in varNames, do
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1. If varEnvRec.HasLexicalDeclaration(name) is true, throw a
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SyntaxError exception.
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2. NOTE: eval will not create a global var declaration that would
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be shadowed by a global lexical declaration.
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[...]
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features: [let]
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---*/
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let x;
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var caught;
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// The `assert.throws` helper function would interfere with the semantics under
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// test.
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try {
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(0,eval)('var x;');
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} catch (err) {
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caught = err;
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}
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assert.notSameValue(caught, undefined);
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assert.sameValue(caught.constructor, SyntaxError);
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