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60 lines
1.8 KiB
JavaScript
60 lines
1.8 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/gen-func-decl.template
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/*---
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description: It's a syntax error if a FunctionRestParameter is followed by a trailing comma (generator function declaration)
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esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject
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features: [generators]
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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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GeneratorDeclaration : function * ( FormalParameters ) { GeneratorBody }
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[...]
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2. Let F be GeneratorFunctionCreate(Normal, FormalParameters,
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GeneratorBody, scope, strict).
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[...]
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9.2.1 [[Call]] ( thisArgument, argumentsList)
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[...]
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7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
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[...]
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9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
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1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
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[...]
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9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
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[...]
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23. Let iteratorRecord be Record {[[iterator]]:
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CreateListIterator(argumentsList), [[done]]: false}.
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24. If hasDuplicates is true, then
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[...]
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25. Else,
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b. Let formalStatus be IteratorBindingInitialization for formals with
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iteratorRecord and env as arguments.
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[...]
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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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function* f(...a,) {
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}
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