spread-err-mult-err-itr-step.js (1545B)
1 // This file was procedurally generated from the following sources: 2 // - src/spread/mult-err-itr-step.case 3 // - src/spread/error/member-expr.template 4 /*--- 5 description: Spread operator following other arguments when IteratorStep fails (`new` operator) 6 esid: sec-new-operator-runtime-semantics-evaluation 7 features: [Symbol.iterator] 8 flags: [generated] 9 info: | 10 MemberExpression : new MemberExpression Arguments 11 12 1. Return EvaluateNew(MemberExpression, Arguments). 13 14 12.3.3.1.1 Runtime Semantics: EvaluateNew 15 16 6. If arguments is empty, let argList be an empty List. 17 7. Else, 18 a. Let argList be ArgumentListEvaluation of arguments. 19 [...] 20 21 12.3.6.1 Runtime Semantics: ArgumentListEvaluation 22 23 ArgumentList : ArgumentList , ... AssignmentExpression 24 25 1. Let precedingArgs be the result of evaluating ArgumentList. 26 2. Let spreadRef be the result of evaluating AssignmentExpression. 27 3. Let iterator be GetIterator(GetValue(spreadRef) ). 28 4. ReturnIfAbrupt(iterator). 29 30 7.4.5 IteratorStep ( iterator ) 31 32 1. Let result be IteratorNext(iterator). 33 2. ReturnIfAbrupt(result). 34 35 7.4.2 IteratorNext ( iterator, value ) 36 37 1. If value was not passed, then 38 a. Let result be Invoke(iterator, "next", « »). 39 [...] 40 3. ReturnIfAbrupt(result). 41 ---*/ 42 var iter = {}; 43 iter[Symbol.iterator] = function() { 44 return { 45 next: function() { 46 throw new Test262Error(); 47 } 48 }; 49 }; 50 51 assert.throws(Test262Error, function() { 52 new function() {}(0, ...iter); 53 }); 54 55 reportCompare(0, 0);