spread-err-sngl-err-itr-step.js (1628B)
1 // This file was procedurally generated from the following sources: 2 // - src/spread/sngl-err-itr-step.case 3 // - src/spread/error/call-expr.template 4 /*--- 5 description: Spread operator applied to the only argument when IteratorStep fails (CallExpression) 6 esid: sec-function-calls-runtime-semantics-evaluation 7 features: [Symbol.iterator] 8 flags: [generated] 9 info: | 10 CallExpression : MemberExpression Arguments 11 12 [...] 13 9. Return EvaluateDirectCall(func, thisValue, Arguments, tailCall). 14 15 12.3.4.3 Runtime Semantics: EvaluateDirectCall 16 17 1. Let argList be ArgumentListEvaluation(arguments). 18 [...] 19 6. Let result be Call(func, thisValue, argList). 20 [...] 21 22 12.3.6.1 Runtime Semantics: ArgumentListEvaluation 23 24 ArgumentList : ... AssignmentExpression 25 26 1. Let list be an empty List. 27 2. Let spreadRef be the result of evaluating AssignmentExpression. 28 3. Let spreadObj be GetValue(spreadRef). 29 4. Let iterator be GetIterator(spreadObj). 30 5. ReturnIfAbrupt(iterator). 31 6. Repeat 32 a. Let next be IteratorStep(iterator). 33 b. ReturnIfAbrupt(next). 34 35 7.4.5 IteratorStep ( iterator ) 36 37 1. Let result be IteratorNext(iterator). 38 2. ReturnIfAbrupt(result). 39 40 7.4.2 IteratorNext ( iterator, value ) 41 42 1. If value was not passed, then 43 a. Let result be Invoke(iterator, "next", « »). 44 [...] 45 3. ReturnIfAbrupt(result). 46 ---*/ 47 var iter = {}; 48 iter[Symbol.iterator] = function() { 49 return { 50 next: function() { 51 throw new Test262Error(); 52 } 53 }; 54 }; 55 56 assert.throws(Test262Error, function() { 57 (function() {}(...iter)); 58 }); 59 60 reportCompare(0, 0);