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// Scoped pointer used for chewing.

#ifndef MOZC_CHEWING_SCOPED_CHEWING_PTR_H_
#define MOZC_CHEWING_SCOPED_CHEWING_PTR_H_

#include <chewing/chewingio.h>

#include "base/port.h"

template<typename PTR>
class scoped_chewing_ptr {
 public:
  typedef PTR* element_type;

  explicit scoped_chewing_ptr(PTR* object = NULL)
      : object_(object) {
  }

  ~scoped_chewing_ptr() {
    if (object_) {
      ::chewing_free(object_);
    }
  }

  void reset(PTR* object = NULL) {
    if (object_) {
      ::chewing_free(object_);
    }
    object_ = object;
  }

  bool operator==(PTR* that) const {
    return object_ == that;
  }

  bool operator!=(PTR* that) const {
    return object_ != that;
  }

  operator PTR*() const {
    return object_;
  }

  PTR* get() const {
    return object_;
  }

 private:
  PTR* object_;

  DISALLOW_COPY_AND_ASSIGN(scoped_chewing_ptr);
};


#endif  // MOZC_CHEWING_SCOPED_CHEWING_PTR_H_