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// |reftest| error:SyntaxError
// This file was procedurally generated from the following sources:
// - src/function-forms/rest-params-trailing-comma-early-error.case
// - src/function-forms/syntax/async-arrow-function.template
/*---
description: It's a syntax error if a FunctionRestParameter is followed by a trailing comma (async arrow function expression)
esid: sec-async-arrow-function-definitions
flags: [generated]
negative:
phase: parse
type: SyntaxError
info: |
14.7 Async Arrow Function Definitions
AsyncArrowFunction :
...
CoverCallExpressionAndAsyncArrowHead => AsyncConciseBody
AsyncConciseBody :
{ AsyncFunctionBody }
...
Supplemental Syntax
When processing an instance of the production AsyncArrowFunction :
CoverCallExpressionAndAsyncArrowHead => AsyncConciseBody the interpretation of
CoverCallExpressionAndAsyncArrowHead is refined using the following grammar:
AsyncArrowHead :
async ArrowFormalParameters
Trailing comma in the parameters list
14.1 Function Definitions
FormalParameters[Yield, Await] :
[empty]
FunctionRestParameter[?Yield, ?Await]
FormalParameterList[?Yield, ?Await]
FormalParameterList[?Yield, ?Await] ,
FormalParameterList[?Yield, ?Await] , FunctionRestParameter[?Yield, ?Await]
---*/
$DONOTEVALUATE();
(async (...a,) => {
});