XXFunctionCaller.h

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#ifndef XXFunctionCallerH
#define XXFunctionCallerH
 
#include "XXCompileTimeString.h"
 
#include <QList>
 
namespace XX
{
   namespace Function
   {
      class AbstractCaller
      {
      protected:
         AbstractCaller() = default;
      };

 
      template <typename T>
      concept CallerClass = requires(T instance) //
      {
         std::is_base_of<AbstractCaller, T>::value;
      };

 
      template <CompileTimeString tag>
      class Caller : public AbstractCaller
      {
      public:
         Caller();
         virtual ~Caller() = 0;
 
      protected:
         template <CallerClass TargetClass, typename... Args>
         static void callOnAll(void (TargetClass::*function)(Args...), Args... values);
 
         template <CallerClass TargetClass>
         static void callOnAll(void (TargetClass::*function)());
 
         static size_t instanceCount();
 
      private:
         static QList<Caller*> instances;
      };
   } // namespace Function
} // namespace XX
 
#ifndef XXFunctionCallerHPP
#include "XXFunctionCaller.hpp"
#endif // NOT XXFunctionCallerHPP
 
#endif // NOT XXFunctionCallerH