cpp-logger/include/logger/wrapper_object.h

//
//  wrapper_object.hpp
//  logging
//
//  Created by Sam Jaffe on 4/4/19.
//

#pragma once

#include <iosfwd>
#include <string>

#include "detail/to_string.h"

namespace logging {
  class object {
  public:
    template <typename T>
    explicit object(T & object);
    
    std::string to_string() const;
    
  private:
    template <typename> static std::string to_string(void * ptr);
    
  private:
    void * ptr_;
    std::string (*to_string_)(void*);
  };
  
  std::ostream & operator<<(std::ostream &, object const &);
  
  template <typename T>
  std::string object::to_string(void * ptr) {
    return logging::detail::to_string(*static_cast<T*>(ptr));
  }
  
  template <typename T>
  object::object(T & object)
  : ptr_(&object), to_string_(&object::to_string<T>) {
    
  }
}