src/dstr-assignment/array-rest-put-prop-ref-user-err-iter-close-skip.case

// Copyright (C) 2016 the V8 project authors. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
desc: >
    IteratorClose is not called when value assignment produces an abrupt
    completion.
info: |
    ArrayAssignmentPattern : [ Elisionopt AssignmentRestElement ]

    [...]
    5. Let result be the result of performing
       IteratorDestructuringAssignmentEvaluation of AssignmentRestElement with
       iteratorRecord as the argument
    6. If iteratorRecord.[[done]] is false, return IteratorClose(iterator,
       result).

    AssignmentRestElement[Yield] : ... DestructuringAssignmentTarget

    [...]
    4. Repeat while iteratorRecord.[[done]] is false
       [...]
       d. If next is false, set iteratorRecord.[[done]] to true.
       [...]
    5. If DestructuringAssignmentTarget is neither an ObjectLiteral nor an
       ArrayLiteral, then
       a. Return PutValue(lref, A).
features: [Symbol.iterator]
template: error
esid: sec-runtime-semantics-destructuringassignmentevaluation
---*/

//- setup
var nextCount = 0;
var returnCount = 0;
var iterable = {};
var iterator = {
  next: function() {
    nextCount += 1;
    return { done: true };
  },
  return: function() {
    returnCount += 1;
  }
};
var obj = Object.defineProperty({}, 'poisoned', {
  set: function(x) {
    throw new Test262Error();
  }
});
iterable[Symbol.iterator] = function() {
  return iterator;
};
//- error
Test262Error
//- elems
[...obj.poisoned]
//- vals
iterable
//- teardown
assert.sameValue(nextCount, 1);
assert.sameValue(returnCount, 0);