embedder-state.h

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// Copyright 2021 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_EXECUTION_EMBEDDER_STATE_H_
#define V8_EXECUTION_EMBEDDER_STATE_H_
 
#include "include/v8-local-handle.h"
#include "src/execution/isolate.h"
 
namespace v8 {
 
enum class EmbedderStateTag : uint8_t;
 
namespace internal {
class V8_EXPORT_PRIVATE EmbedderState {
 public:
  EmbedderState(v8::Isolate* isolate, Local<v8::Context> context,
                EmbedderStateTag tag);
 
  ~EmbedderState();
 
  EmbedderStateTag GetState() const { return tag_; }
 
  Address native_context_address() const { return native_context_address_; }
 
  void OnMoveEvent(Address from, Address to);
 
 private:
  Isolate* isolate_;
  EmbedderStateTag tag_;
  Address native_context_address_ = kNullAddress;
  EmbedderState* previous_embedder_state_;
};
}  // namespace internal
 
}  // namespace v8
 
#endif  // V8_EXECUTION_EMBEDDER_STATE_H_