// |reftest| error:SyntaxError // This file was procedurally generated from the following sources: // - src/dstr-binding/ary-ptrn-rest-init-ary.case // - src/dstr-binding/default/gen-func-decl.template /*--- description: Rest element (nested array pattern) does not support initializer (generator function declaration) esid: sec-generator-function-definitions-runtime-semantics-instantiatefunctionobject features: [generators, destructuring-binding] 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. [...] 13.3.3 Destructuring Binding Patterns ArrayBindingPattern[Yield] : [ Elisionopt BindingRestElement[?Yield]opt ] [ BindingElementList[?Yield] ] [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ] ---*/ $DONOTEVALUATE(); var callCount = 0; function* f([...[ x ] = []]) { callCount = callCount + 1; }; f([]).next(); assert.sameValue(callCount, 1, 'generator function invoked exactly once');