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
13 namespace v8 {
14 namespace internal {
15
16 class 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
EXTERN_DECLARE_HASH_TABLE(StringSet,StringSetShape)27 EXTERN_DECLARE_HASH_TABLE(StringSet, StringSetShape)
28
29 class 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