mirror of https://github.com/tc39/test262.git
53 lines
1.4 KiB
JavaScript
53 lines
1.4 KiB
JavaScript
// This file was procedurally generated from the following sources:
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// - src/function-forms/dflt-params-duplicates.case
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// - src/function-forms/syntax/async-arrow-function.template
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/*---
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description: It is a Syntax Error if BoundNames of FormalParameters contains any duplicate elements. (async arrow function expression)
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esid: sec-async-arrow-function-definitions
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features: [default-parameters]
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flags: [generated]
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negative:
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phase: parse
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type: SyntaxError
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info: |
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14.7 Async Arrow Function Definitions
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AsyncArrowFunction :
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...
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CoverCallExpressionAndAsyncArrowHead => AsyncConciseBody
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AsyncConciseBody :
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{ AsyncFunctionBody }
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...
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Supplemental Syntax
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When processing an instance of the production AsyncArrowFunction :
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CoverCallExpressionAndAsyncArrowHead => AsyncConciseBody the interpretation of
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CoverCallExpressionAndAsyncArrowHead is refined using the following grammar:
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AsyncArrowHead :
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async ArrowFormalParameters
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14.1.2 Static Semantics: Early Errors
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StrictFormalParameters : FormalParameters
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- It is a Syntax Error if BoundNames of FormalParameters contains any
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duplicate elements.
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FormalParameters : FormalParameterList
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- It is a Syntax Error if IsSimpleParameterList of FormalParameterList is
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false and BoundNames of FormalParameterList contains any duplicate
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elements.
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---*/
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$DONOTEVALUATE();
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(async (x = 0, x) => {
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});
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