1// Copyright 2018 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_SNAPSHOT_READ_ONLY_SERIALIZER_H_
6#define V8_SNAPSHOT_READ_ONLY_SERIALIZER_H_
7
8#include "src/snapshot/roots-serializer.h"
9
10namespace v8 {
11namespace internal {
12
13class HeapObject;
14class SnapshotByteSink;
15
16class V8_EXPORT_PRIVATE ReadOnlySerializer : public RootsSerializer {
17 public:
18 explicit ReadOnlySerializer(Isolate* isolate);
19 ~ReadOnlySerializer() override;
20
21 void SerializeReadOnlyRoots();
22
23 // Completes the serialization of the read-only object cache and serializes
24 // any deferred objects.
25 void FinalizeSerialization();
26
27 // If |obj| can be serialized in the read-only snapshot then add it to the
28 // read-only object cache if not already present and emit a
29 // ReadOnlyObjectCache bytecode into |sink|. Returns whether this was
30 // successful.
31 bool SerializeUsingReadOnlyObjectCache(SnapshotByteSink* sink,
32 HeapObject obj);
33
34 private:
35 void SerializeObject(HeapObject o) override;
36 bool MustBeDeferred(HeapObject object) override;
37
38 DISALLOW_COPY_AND_ASSIGN(ReadOnlySerializer);
39};
40
41} // namespace internal
42} // namespace v8
43
44#endif // V8_SNAPSHOT_READ_ONLY_SERIALIZER_H_
45