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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.
35 lines
1.2 KiB
JavaScript
35 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-evaldeclarationinstantiation
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description: Variable collision with lexical binding in lower scope
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info: |
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[...]
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5. If strict is false, then
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[...]
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d. Repeat while thisLex is not the same as varEnv,
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i. Let thisEnvRec be thisLex's EnvironmentRecord.
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ii. If thisEnvRec is not an object Environment Record, then
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1. NOTE: The environment of with statements cannot contain any
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lexical declaration so it doesn't need to be checked for
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var/let hoisting conflicts.
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2. For each name in varNames, do
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a. If thisEnvRec.HasBinding(name) is true, then
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i. Throw a SyntaxError exception.
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b. NOTE: A direct eval will not hoist var declaration over a
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like-named lexical declaration.
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iii. Let thisLex be thisLex's outer environment reference.
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[...]
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flags: [noStrict]
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features: [let]
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---*/
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assert.throws(SyntaxError, function() {
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{
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let x;
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{
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eval('var x;');
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}
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}
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});
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