// This file was procedurally generated from the following sources: // - src/spread/mult-err-itr-value.case // - src/spread/error/array.template /*--- description: Spread operator following other arguments when IteratorValue fails (Array initializer) esid: sec-runtime-semantics-arrayaccumulation es6id: 12.2.5.2 features: [Symbol.iterator] flags: [generated] info: | SpreadElement : ...AssignmentExpression 1. Let spreadRef be the result of evaluating AssignmentExpression. 2. Let spreadObj be ? GetValue(spreadRef). 3. Let iterator be ? GetIterator(spreadObj). 4. Repeat a. Let next be ? IteratorStep(iterator). b. If next is false, return nextIndex. c. Let nextValue be ? IteratorValue(next). d. Let status be CreateDataProperty(array, ToString(ToUint32(nextIndex)), nextValue). e. Assert: status is true. f. Let nextIndex be nextIndex + 1. 12.3.6.1 Runtime Semantics: ArgumentListEvaluation ArgumentList : ArgumentList , ... AssignmentExpression 1. Let precedingArgs be the result of evaluating ArgumentList. 2. Let spreadRef be the result of evaluating AssignmentExpression. 3. Let iterator be GetIterator(GetValue(spreadRef) ). 4. ReturnIfAbrupt(iterator). 7.4.4 IteratorValue ( iterResult ) 1. Assert: Type(iterResult) is Object. 2. Return Get(iterResult, "value"). 7.3.1 Get (O, P) [...] 3. Return O.[[Get]](P, O). ---*/ var iter = {}; var poisonedValue = Object.defineProperty({}, 'value', { get: function() { throw new Test262Error(); } }); iter[Symbol.iterator] = function() { return { next: function() { return poisonedValue; } }; }; assert.throws(Test262Error, function() { [0, ...iter]; });