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// Copyright 2017 the V8 project authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef V8_SNAPSHOT_CONTEXT_DESERIALIZER_H_
#define V8_SNAPSHOT_CONTEXT_DESERIALIZER_H_
#include "src/snapshot/deserializer.h"
#include "src/snapshot/snapshot-data.h"
#include "src/snapshot/snapshot.h"
namespace v8 {
namespace internal {
class Context;
class Isolate;
// Deserializes the context-dependent object graph rooted at a given object.
// The ContextDeserializer is not expected to deserialize any code objects.
class V8_EXPORT_PRIVATE ContextDeserializer final
: public Deserializer<Isolate> {
public:
static MaybeHandle<Context> DeserializeContext(
Isolate* isolate, const SnapshotData* data, bool can_rehash,
Handle<JSGlobalProxy> global_proxy,
v8::DeserializeEmbedderFieldsCallback embedder_fields_deserializer);
private:
explicit ContextDeserializer(Isolate* isolate, const SnapshotData* data,
bool can_rehash)
: Deserializer(isolate, data->Payload(), data->GetMagicNumber(), false,
can_rehash) {}
// Deserialize a single object and the objects reachable from it.
MaybeHandle<Object> Deserialize(
Isolate* isolate, Handle<JSGlobalProxy> global_proxy,
v8::DeserializeEmbedderFieldsCallback embedder_fields_deserializer);
void DeserializeEmbedderFields(
v8::DeserializeEmbedderFieldsCallback embedder_fields_deserializer);
void SetupOffHeapArrayBufferBackingStores();
};
} // namespace internal
} // namespace v8
#endif // V8_SNAPSHOT_CONTEXT_DESERIALIZER_H_
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