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
|
// |reftest| shell-option(--enable-symbols-as-weakmap-keys) skip-if(release_or_beta||!this.hasOwnProperty('WeakRef')||!xulRuntime.shell) -- symbols-as-weakmap-keys is not released yet, WeakRef is not enabled unconditionally, requires shell-options
// Copyright (C) 2022 Igalia, S.L. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
esid: sec-weak-ref-target
description: >
Returns a new ordinary object from the WeakRef constructor when called with a
Symbol target
info: |
WeakRef ( _target_ )
3. Let _weakRef_ be ? OrdinaryCreateFromConstructor(NewTarget,
*"%WeakRefPrototype%"*, « [[WeakRefTarget]] »).
4. Perfom AddToKeptObjects(_target_).
5. Set _weakRef_.[[WeakRefTarget]] to _target_.
6. Return _weakRef_.
features: [Symbol, WeakRef, symbols-as-weakmap-keys]
---*/
var target = Symbol('a description');
var wr = new WeakRef(target);
assert.sameValue(wr instanceof WeakRef, true, 'object is instanceof WeakRef');
assert.sameValue(Object.getPrototypeOf(wr), WeakRef.prototype, 'prototype is WeakRef.prototype');
wr = new WeakRef(Symbol.hasInstance);
assert.sameValue(wr instanceof WeakRef, true, 'object is instanceof WeakRef');
assert.sameValue(Object.getPrototypeOf(wr), WeakRef.prototype, 'prototype is WeakRef.prototype');
reportCompare(0, 0);
|