mirror of https://github.com/tc39/test262.git
23 lines
864 B
JavaScript
23 lines
864 B
JavaScript
// Copyright (C) 2020 Rick Waldron. 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-switch-statement-runtime-semantics-evaluation
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description: Creation of new lexical environment (into `default` clause)
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info: |
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1. Let exprRef be the result of evaluating Expression.
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2. Let switchValue be ? GetValue(exprRef).
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3. Let oldEnv be the running execution context's LexicalEnvironment.
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4. Let blockEnv be NewDeclarativeEnvironment(oldEnv).
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5. Perform BlockDeclarationInstantiation(CaseBlock, blockEnv).
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6. Set the running execution context's LexicalEnvironment to blockEnv.
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7. Let R be the result of performing CaseBlockEvaluation of CaseBlock with
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argument switchValue.
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[...]
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negative:
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phase: runtime
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type: ReferenceError
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---*/
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switch (0) { default: const x = 1; }
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x;
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