JSTests/test262/test/language/expressions/array/spread-err-sngl-err-itr-get-get.js

// This file was procedurally generated from the following sources:
// - src/spread/sngl-err-itr-get-get.case
// - src/spread/error/array.template
/*---
description: Spread operator applied to the only argument when GetIterator fails (@@iterator property access) (Array initializer)
esid: sec-runtime-semantics-arrayaccumulation
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 : ... 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).

    7.4.1 GetIterator ( obj, method )

    1. If method was not passed, then
       a. Let method be ? GetMethod(obj, @@iterator).
---*/
var iter = {};
Object.defineProperty(iter, Symbol.iterator, {
  get: function() {
    throw new Test262Error();
  }
});

assert.throws(Test262Error, function() {
  [...iter];
});