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_SNAPSHOT_STARTUP_DESERIALIZER_H_ 6 #define V8_SNAPSHOT_STARTUP_DESERIALIZER_H_ 7 8 #include "src/snapshot/deserializer.h" 9 #include "src/snapshot/snapshot.h" 10 11 namespace v8 { 12 namespace internal { 13 14 // Initializes an isolate with context-independent data from a given snapshot. 15 class StartupDeserializer final : public Deserializer<> { 16 public: StartupDeserializer(const SnapshotData * startup_data,const BuiltinSnapshotData * builtin_data)17 StartupDeserializer(const SnapshotData* startup_data, 18 const BuiltinSnapshotData* builtin_data) 19 : Deserializer(startup_data, false), builtin_data_(builtin_data) {} 20 21 // Deserialize the snapshot into an empty heap. 22 void DeserializeInto(Isolate* isolate); 23 24 private: 25 void FlushICacheForNewIsolate(); 26 void PrintDisassembledCodeObjects(); 27 28 // Rehash after deserializing an isolate. 29 void RehashHeap(); 30 31 const BuiltinSnapshotData* builtin_data_; 32 }; 33 34 } // namespace internal 35 } // namespace v8 36 37 #endif // V8_SNAPSHOT_STARTUP_DESERIALIZER_H_ 38