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These tests specifically concern error produced from the global scope, precluding the use of the `assert.throws` helper function.
31 lines
1.1 KiB
JavaScript
31 lines
1.1 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 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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negative:
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phase: runtime
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type: SyntaxError
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flags: [noStrict]
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features: [let]
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---*/
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let x;
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// Although the `try` statement is a more precise mechanism for detecting
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// runtime errors, the behavior under test is only observable for a direct eval
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// call when the call is made from the global scope. This forces the use of
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// the more coarse-grained `negative` frontmatter to assert the expected error.
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eval('var x;');
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