text: #ifndef SRC_BASE_OBJECT_H_
  #define SRC_BASE_OBJECT_H_
  
  #include "v8.h"
  
  namespace node {
  
  class Environment;
  
  class BaseObject {
   public:
    inline BaseObject(Environment* env, v8::Local<v8::Object> handle);
    inline virtual ~BaseObject();
  
    // Returns the wrapped object.  Returns an empty handle when
    // persistent.IsEmpty() is true.
    inline v8::Local<v8::Object> object();
  
    // The parent class is responsible for calling .Reset() on destruction
    // when the persistent handle is strong because there is no way for
    // BaseObject to know when the handle goes out of scope.
    // Weak handles have been reset by the time the destructor runs but
    // calling .Reset() again is harmless.
    inline v8::Persistent<v8::Object>& persistent();
  
    inline Environment* env() const;
  
    // The handle_ must have an internal field count > 0, and the first
    // index is reserved for a pointer to this class. This is an
    // implicit requirement, but Node does not have a case where it's
    // required that MakeWeak() be called and the internal field not
    // be set.
    template <typename Type>
    inline void MakeWeak(Type* ptr);
  
    inline void ClearWeak();
  
   private:
    BaseObject();
  
    template <typename Type>
    static inline void WeakCallback(
        const v8::WeakCallbackInfo<Type>& data);
  
    v8::Persistent<v8::Object> handle_;
    Environment* env_;
  };
  
  }  // namespace node
  
  #endif  // SRC_BASE_OBJECT_H_
  