// Copyright 2010 the V8 project authors. All rights reserved.
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// modification, are permitted provided that the following conditions are
// met:
//
//     * Redistributions of source code must retain the above copyright
//       notice, this list of conditions and the following disclaimer.
//     * Redistributions in binary form must reproduce the above
//       copyright notice, this list of conditions and the following
//       disclaimer in the documentation and/or other materials provided
//       with the distribution.
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#ifndef V8_VM_STATE_H_
#define V8_VM_STATE_H_

#include "allocation.h"
#include "isolate.h"

namespace v8 {
namespace internal {

class VMState BASE_EMBEDDED {
 public:
  inline VMState(Isolate* isolate, StateTag tag);
  inline ~VMState();

 private:
  Isolate* isolate_;
  StateTag previous_tag_;
};


class ExternalCallbackScope BASE_EMBEDDED {
 public:
  inline ExternalCallbackScope(Isolate* isolate, Address callback);
  inline ~ExternalCallbackScope();
 private:
  Isolate* isolate_;
  Address previous_callback_;
};

} }  // namespace v8::internal


#endif  // V8_VM_STATE_H_