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The error occurs in [GlobalDeclarationInstantiation](https://tc39.github.io/ecma262/#sec-globaldeclarationinstantiation), which is runtime semantics.
19 lines
556 B
JavaScript
19 lines
556 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-globaldeclarationinstantiation
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es6id: 15.1.8
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description: Lexical declaration collides with existing "restricted global"
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info: |
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[...]
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5. For each name in lexNames, do
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[...]
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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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negative:
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phase: runtime
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type: SyntaxError
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---*/
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let undefined;
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