Line data Source code
1 : // Copyright 2017 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_CODE_CACHE_H_
6 : #define V8_OBJECTS_CODE_CACHE_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 CodeCacheHashTableShape : public BaseShape<HashTableKey*> {
17 : public:
18 : static inline bool IsMatch(HashTableKey* key, Object* value) {
19 1673 : return key->IsMatch(value);
20 : }
21 :
22 1211 : static inline uint32_t Hash(HashTableKey* key) { return key->Hash(); }
23 :
24 : static inline uint32_t HashForObject(HashTableKey* key, Object* object) {
25 0 : return key->HashForObject(object);
26 : }
27 :
28 : static inline Handle<Object> AsHandle(Isolate* isolate, HashTableKey* key);
29 :
30 : static const int kPrefixSize = 0;
31 : // The both the key (name + flags) and value (code object) can be derived from
32 : // the fixed array that stores both the name and code.
33 : // TODO(verwaest): Don't allocate a fixed array but inline name and code.
34 : // Rewrite IsMatch to get table + index as input rather than just the raw key.
35 : static const int kEntrySize = 1;
36 : };
37 :
38 : class CodeCacheHashTable
39 : : public HashTable<CodeCacheHashTable, CodeCacheHashTableShape,
40 : HashTableKey*> {
41 : public:
42 : static Handle<CodeCacheHashTable> Put(Handle<CodeCacheHashTable> table,
43 : Handle<Name> name, Handle<Code> code);
44 :
45 : Code* Lookup(Name* name, Code::Flags flags);
46 :
47 : DECLARE_CAST(CodeCacheHashTable)
48 :
49 : private:
50 : DISALLOW_IMPLICIT_CONSTRUCTORS(CodeCacheHashTable);
51 : };
52 :
53 : } // namespace internal
54 : } // namespace v8
55 :
56 : #include "src/objects/object-macros-undef.h"
57 :
58 : #endif // V8_OBJECTS_CODE_CACHE_H_
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