1/*
2 * Copyright (C) 2015 Apple, Inc. All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
6 * are met:
7 * 1. Redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution.
12 *
13 * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
18 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
20 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
21 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
24 */
25
26#pragma once
27
28#include "JSObject.h"
29#include "WeakMapImpl.h"
30
31namespace JSC {
32
33class JSWeakSet final : public WeakMapImpl<WeakMapBucket<WeakMapBucketDataKey>> {
34public:
35 using Base = WeakMapImpl<WeakMapBucket<WeakMapBucketDataKey>>;
36
37 DECLARE_EXPORT_INFO;
38
39 static Structure* createStructure(VM& vm, JSGlobalObject* globalObject, JSValue prototype)
40 {
41 return Structure::create(vm, globalObject, prototype, TypeInfo(JSWeakSetType, StructureFlags), info());
42 }
43
44 static JSWeakSet* create(VM& vm, Structure* structure)
45 {
46 JSWeakSet* instance = new (NotNull, allocateCell<JSWeakSet>(vm.heap)) JSWeakSet(vm, structure);
47 instance->finishCreation(vm);
48 return instance;
49 }
50
51private:
52 JSWeakSet(VM& vm, Structure* structure)
53 : Base(vm, structure)
54 {
55 }
56
57 static String toStringName(const JSObject*, ExecState*);
58};
59
60static_assert(std::is_final<JSWeakSet>::value, "Required for JSType based casting");
61
62} // namespace JSC
63