src/base/scoped_cftyperef.h

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#ifndef MOZC_BASE_SCOPED_CFTYPEREF_H_
#define MOZC_BASE_SCOPED_CFTYPEREF_H_

#ifdef OS_MACOSX
#include <CoreFoundation/CoreFoundation.h>

template<typename T> class scoped_cftyperef {
 public:
  typedef T element_type;
  explicit scoped_cftyperef(T p = NULL, bool do_retain = false)
      : ptr_(p) {
    if (do_retain && p != NULL) {
      CFRetain(ptr_);
    }
  }

  ~scoped_cftyperef() {
    if (ptr_ != NULL) {
      CFRelease(ptr_);
    }
  }

  void reset(T p = NULL) {
    if (ptr_ != NULL) {
      CFRelease(ptr_);
    }
    ptr_ = p;
  }

  T get() const { return ptr_; }

  bool Verify(CFTypeID type_id) {
    return ptr_ != NULL &&
        CFGetTypeID(reinterpret_cast<CFTypeRef>(ptr_)) == type_id;
  }

 private:
  T ptr_;
  scoped_cftyperef(scoped_cftyperef const &);
  scoped_cftyperef &operator=(scoped_cftyperef const &);
  typedef scoped_cftyperef<T> this_type;
};

#endif  // OS_MACOSX
#endif  // MOZC_BASE_SCOPED_CFTYPEREF_H_