blob: 661894f6ff5a8f1bf680679b6136d57a98898299 (
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
|
// Copyright (C) 2016 the V8 project authors. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
es6id: 22.1.3.16
esid: sec-array.prototype.map
description: >
Behavior when the @@species attribute is a non-constructor object
info: |
[...]
5. Let A be ? ArraySpeciesCreate(O, len).
[...]
9.4.2.3 ArraySpeciesCreate
[...]
5. Let C be ? Get(originalArray, "constructor").
[...]
7. If Type(C) is Object, then
a. Let C be ? Get(C, @@species).
b. If C is null, let C be undefined.
[...]
9. If IsConstructor(C) is false, throw a TypeError exception.
features: [Symbol.species]
---*/
var a = [];
var callCount = 0;
var cb = function() {
callCount += 1;
};
a.constructor = {};
a.constructor[Symbol.species] = parseInt;
assert.throws(TypeError, function() {
a.map(cb);
});
assert.sameValue(callCount, 0);
|