// Copyright (C) 2016 the V8 project authors. All rights reserved. // This code is governed by the BSD license found in the LICENSE file. /*--- desc: Spread operator applied to the only argument when IteratorStep fails template: error features: [Symbol.iterator] info: | 12.3.6.1 Runtime Semantics: ArgumentListEvaluation ArgumentList : ... AssignmentExpression 1. Let list be an empty List. 2. Let spreadRef be the result of evaluating AssignmentExpression. 3. Let spreadObj be GetValue(spreadRef). 4. Let iterator be GetIterator(spreadObj). 5. ReturnIfAbrupt(iterator). 6. Repeat a. Let next be IteratorStep(iterator). b. ReturnIfAbrupt(next). 7.4.5 IteratorStep ( iterator ) 1. Let result be IteratorNext(iterator). 2. ReturnIfAbrupt(result). 7.4.2 IteratorNext ( iterator, value ) 1. If value was not passed, then a. Let result be Invoke(iterator, "next", « »). [...] 3. ReturnIfAbrupt(result). ---*/ //- setup var iter = {}; iter[Symbol.iterator] = function() { return { next: function() { throw new Test262Error(); } }; }; //- error Test262Error //- args ...iter