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49 lines
1.3 KiB
JavaScript
49 lines
1.3 KiB
JavaScript
// This file was procedurally generated from the following sources:
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// - src/function-forms/rest-params-trailing-comma-early-error.case
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// - src/function-forms/syntax/async-arrow-function.template
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/*---
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description: It's a syntax error if a FunctionRestParameter is followed by a trailing comma (async arrow function expression)
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esid: sec-async-arrow-function-definitions
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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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Trailing comma in the parameters list
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14.1 Function Definitions
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FormalParameters[Yield, Await] :
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[empty]
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FunctionRestParameter[?Yield, ?Await]
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FormalParameterList[?Yield, ?Await]
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FormalParameterList[?Yield, ?Await] ,
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FormalParameterList[?Yield, ?Await] , FunctionRestParameter[?Yield, ?Await]
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---*/
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$DONOTEVALUATE();
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(async (...a,) => {
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});
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