// Copyright (C) 2017 the V8 project authors. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
desc: Error forwarding when IteratorStep returns an abrupt completion
template: error
info: |
    13.3.3.6 Runtime Semantics: IteratorBindingInitialization

    SingleNameBinding : BindingIdentifier Initializer_opt

    [...]
    3. If iteratorRecord.[[done]] is false, then
       a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
       b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
       c. ReturnIfAbrupt(next).
features: [Symbol.iterator]
---*/

//- setup
var g = {};
g[Symbol.iterator] = function() {
  return {
    next() {
      throw new Test262Error();
    }
  };
};
//- elems
[x]
//- vals
g
//- error
Test262Error