summaryrefslogtreecommitdiffstats
path: root/js/src/tests/non262/extensions/destructuring-for-inof-__proto__.js
blob: 283dee3147d6d99c10d8f6f5427b83f9ae12dd1e (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
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
/*
 * Any copyright is dedicated to the Public Domain.
 * http://creativecommons.org/licenses/publicdomain/
 */

var gTestfile = 'destructuring-for-inof-__proto__.js';
var BUGNUMBER = 963641;
var summary =
  "__proto__ should work in destructuring patterns as the targets of " +
  "for-in/for-of loops";

print(BUGNUMBER + ": " + summary);

/**************
 * BEGIN TEST *
 **************/

function objectWithProtoProperty(v)
{
  var obj = {};
  return Object.defineProperty(obj, "__proto__",
                               {
                                 enumerable: true,
                                 configurable: true,
                                 writable: true,
                                 value: v
                               });
}

function* objectWithProtoGenerator(v)
{
  yield objectWithProtoProperty(v);
}

function* identityGenerator(v)
{
  yield v;
}

for (var { __proto__: target } of objectWithProtoGenerator(null))
  assertEq(target, null);

for ({ __proto__: target } of objectWithProtoGenerator("aacchhorrt"))
  assertEq(target, "aacchhorrt");

for ({ __proto__: target } of identityGenerator(42))
  assertEq(target, Number.prototype);

for (var { __proto__: target } in { prop: "kneedle" })
  assertEq(target, String.prototype);

for ({ __proto__: target } in { prop: "snork" })
  assertEq(target, String.prototype);

for ({ __proto__: target } in { prop: "ohia" })
  assertEq(target, String.prototype);

function nested()
{
  for (var { __proto__: target } of objectWithProtoGenerator(null))
    assertEq(target, null);

  for ({ __proto__: target } of objectWithProtoGenerator("aacchhorrt"))
    assertEq(target, "aacchhorrt");

  for ({ __proto__: target } of identityGenerator(42))
    assertEq(target, Number.prototype);

  for (var { __proto__: target } in { prop: "kneedle" })
    assertEq(target, String.prototype);

  for ({ __proto__: target } in { prop: "snork" })
    assertEq(target, String.prototype);

  for ({ __proto__: target } in { prop: "ohia" })
    assertEq(target, String.prototype);
}
nested();

/******************************************************************************/

if (typeof reportCompare === "function")
  reportCompare(true, true);

print("Tests complete");