text: // Copyright (C) 2016 the V8 project authors. All rights reserved.
  // This code is governed by the BSD license found in the LICENSE file.
  /*---
  description: Abrupt completion returned during evaluation of elision
  info: |
      ArrayAssignmentPattern :
          [ AssignmentElementList , Elisionopt AssignmentRestElementopt ]
  
      [...]
      6. If Elision is present, then
         a. Let status be the result of performing
            IteratorDestructuringAssignmentEvaluation of Elision with
            iteratorRecord as the argument.
         b. If status is an abrupt completion, then
            i. If iteratorRecord.[[done]] is false, return
               IteratorClose(iterator, status).
            ii. Return Completion(status).
  features: [Symbol.iterator]
  es6id: 12.14.5.2
  esid: sec-runtime-semantics-destructuringassignmentevaluation
  ---*/
  
  var nextCount = 0;
  var returnCount = 0;
  var iterable = {};
  var x;
  var iterator = {
    next: function() {
      nextCount += 1;
  
      if (nextCount === 2) {
        throw new Test262Error();
      }
  
      // Set an upper-bound to limit unnecessary iteration in non-conformant
      // implementations
      return { done: nextCount > 10 };
    },
    return: function() {
      returnCount += 1;
    }
  };
  iterable[Symbol.iterator] = function() {
    return iterator;
  };
  
  assert.throws(Test262Error, function() {
    [ x , , ] = iterable;
  });
  
  assert.sameValue(nextCount, 2);
  assert.sameValue(returnCount, 0);
  