ROOT/Browsable/RUnique.hxx

0001 /*************************************************************************
0002  * Copyright (C) 1995-2020, Rene Brun and Fons Rademakers.               *
0003  * All rights reserved.                                                  *
0004  *                                                                       *
0005  * For the licensing terms see $ROOTSYS/LICENSE.                         *
0006  * For the list of contributors see $ROOTSYS/README/CREDITS.             *
0007  *************************************************************************/
0008
0009 #ifndef ROOT7_Browsable_RUnique
0010 #define ROOT7_Browsable_RUnique
0011
0012 #include <ROOT/Browsable/RHolder.hxx>
0013
0014 namespace ROOT {
0015 namespace Browsable {
0016
0017 /** \class RUnique<T>
0018 \ingroup rbrowser
0019 \brief Holder of with unique_ptr<T> instance. Should be used to transfer unique_ptr<T> in browsable methods
0020 \author Sergey Linev <S.Linev@gsi.de>
0021 \date 2019-10-19
0022 \warning This is part of the ROOT 7 prototype! It will change without notice. It might trigger earthquakes. Feedback is welcome!
0023 */
0024
0025 template<class T>
0026 class RUnique : public RHolder {
0027    std::unique_ptr<T> fUnique; ///<! holder without IO
0028 protected:
0029    void *TakeObject() final { return fUnique.release(); }
0030 public:
0031    RUnique(T *obj) { fUnique.reset(obj); }
0032    RUnique(std::unique_ptr<T> &&obj) { fUnique = std::move(obj); }
0033    virtual ~RUnique() = default;
0034
0035    const TClass *GetClass() const final { return TClass::GetClass<T>(); }
0036    const void *GetObject() const final { return fUnique.get(); }
0037 };
0038
0039 } // namespace Browsable
0040 } // namespace ROOT
0041
0042
0043 #endif