// |reftest| error:SyntaxError // This file was procedurally generated from the following sources: // - src/dstr-binding/ary-ptrn-rest-not-final-ary.case // - src/dstr-binding/default/async-gen-func-decl.template /*--- description: Rest element (array binding pattern) may not be followed by any element (async generator function declaration) esid: sec-asyncgenerator-definitions-instantiatefunctionobject features: [async-iteration] flags: [generated] negative: phase: parse type: SyntaxError info: | AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier ( FormalParameters ) { AsyncGeneratorBody } [...] 3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody, scope, strict). [...] 13.3.3 Destructuring Binding Patterns ArrayBindingPattern[Yield] : [ Elisionopt BindingRestElement[?Yield]opt ] [ BindingElementList[?Yield] ] [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ] ---*/ $DONOTEVALUATE(); var callCount = 0; async function* f([...[x], y]) { callCount = callCount + 1; }; f([1, 2, 3]).next().then(() => { assert.sameValue(callCount, 1, 'invoked exactly once'); }).then($DONE, $DONE);