summaryrefslogtreecommitdiff
path: root/src/spread/sngl-err-itr-step.case
blob: e14ec538cbc2fd203a719c52c67ff00ed894e7d8 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
// Copyright (C) 2016 the V8 project authors. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
desc: Spread operator applied to the only argument when IteratorStep fails
template: error
features: [Symbol.iterator]
info: |
    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).
    6. Repeat
       a. Let next be IteratorStep(iterator).
       b. ReturnIfAbrupt(next).

    7.4.5 IteratorStep ( iterator )

    1. Let result be IteratorNext(iterator).
    2. ReturnIfAbrupt(result).

    7.4.2 IteratorNext ( iterator, value )

    1. If value was not passed, then
       a. Let result be Invoke(iterator, "next", « »).
    [...]
    3. ReturnIfAbrupt(result).
---*/

//- setup
var iter = {};
iter[Symbol.iterator] = function() {
  return {
    next: function() {
      throw new Test262Error();
    }
  };
};
//- error
Test262Error
//- args
...iter