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