1/*
2 * Copyright (C) 2013, 2016 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 "HashMapImpl.h"
29#include "JSObject.h"
30
31namespace JSC {
32
33class JSSet final : public HashMapImpl<HashMapBucket<HashMapBucketDataKey>> {
34 using Base = HashMapImpl<HashMapBucket<HashMapBucketDataKey>>;
35public:
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(JSSetType, StructureFlags), info());
42 }
43
44 static JSSet* create(JSGlobalObject* globalObject, VM& vm, Structure* structure)
45 {
46 return create(globalObject, vm, structure, 0);
47 }
48
49 static JSSet* create(JSGlobalObject* globalObject, VM& vm, Structure* structure, uint32_t size)
50 {
51 JSSet* instance = new (NotNull, allocateCell<JSSet>(vm.heap)) JSSet(vm, structure, size);
52 instance->finishCreation(globalObject, vm);
53 return instance;
54 }
55
56 bool isIteratorProtocolFastAndNonObservable();
57 bool canCloneFastAndNonObservable(Structure*);
58 JSSet* clone(JSGlobalObject*, VM&, Structure*);
59
60private:
61 JSSet(VM& vm, Structure* structure)
62 : Base(vm, structure)
63 {
64 }
65
66 JSSet(VM& vm, Structure* structure, uint32_t sizeHint)
67 : Base(vm, structure, sizeHint)
68 {
69 }
70
71 static String toStringName(const JSObject*, JSGlobalObject*);
72};
73
74static_assert(std::is_final<JSSet>::value, "Required for JSType based casting");
75
76} // namespace JSC
77