blob: b12d4c2a9622ae8593d3b4a28ae9b43dd0eb857b (
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
|
// Copyright (C) 2015 the V8 project authors. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
esid: sec-map.prototype.keys
description: >
Throws a TypeError if `this` is a WeakMap object.
info: |
Map.prototype.keys ()
1. Let M be the this value.
2. Return CreateMapIterator(M, "key").
23.1.5.1 CreateMapIterator Abstract Operation
...
2. If map does not have a [[MapData]] internal slot, throw a TypeError
exception.
...
features: [WeakMap]
---*/
assert.throws(TypeError, function() {
Map.prototype.keys.call(new WeakMap());
});
assert.throws(TypeError, function() {
var m = new Map();
m.keys.call(new WeakMap());
});
reportCompare(0, 0);
|