1// Copyright 2020 the V8 project authors. All rights reserved.
2// Use of this source code is governed by a BSD-style license that can be
3// found in the LICENSE file.
4
5#ifndef V8_OBJECTS_STRING_SET_H_
6#define V8_OBJECTS_STRING_SET_H_
7
8#include "src/objects/hash-table.h"
9
10// Has to be the last include (doesn't have include guards):
11#include "src/objects/object-macros.h"
12
13namespace v8 {
14namespace internal {
15
16class StringSetShape : public BaseShape<String> {
17 public:
18  static inline bool IsMatch(String key, Object value);
19  static inline uint32_t Hash(ReadOnlyRoots roots, String key);
20  static inline uint32_t HashForObject(ReadOnlyRoots roots, Object object);
21
22  static const int kPrefixSize = 0;
23  static const int kEntrySize = 1;
24  static const bool kMatchNeedsHoleCheck = true;
25};
26
27EXTERN_DECLARE_HASH_TABLE(StringSet, StringSetShape)
28
29class StringSet : public HashTable<StringSet, StringSetShape> {
30 public:
31  V8_EXPORT_PRIVATE static Handle<StringSet> New(Isolate* isolate);
32  V8_EXPORT_PRIVATE static Handle<StringSet> Add(Isolate* isolate,
33                                                 Handle<StringSet> stringset,
34                                                 Handle<String> name);
35  V8_EXPORT_PRIVATE bool Has(Isolate* isolate, Handle<String> name);
36
37  DECL_CAST(StringSet)
38  OBJECT_CONSTRUCTORS(StringSet, HashTable<StringSet, StringSetShape>);
39};
40
41}  // namespace internal
42}  // namespace v8
43
44#include "src/objects/object-macros-undef.h"
45
46#endif  // V8_OBJECTS_STRING_SET_H_
47