wrapper.h

#ifndef WRAPPER_H
#define WRAPPER_H
#pragma once
#include <sstream>
 
#include "string"
#include "printable.h"
 
namespace original
{
    template <typename TYPE>
    class wrapper : public printable{
    public:
        virtual TYPE& getVal() = 0;
        virtual const TYPE& getVal() const = 0;
        virtual void setVal(TYPE data) = 0;
        virtual wrapper* getPPrev() const = 0;
        virtual wrapper* getPNext() const = 0;
        ~wrapper() override = default;
        [[nodiscard]] std::string className() const override;
        [[nodiscard]] std::string toString(bool enter) const override;
    };
 
}
 
    template <typename TYPE>
    auto original::wrapper<TYPE>::className() const -> std::string
    {
        return "wrapper";
    }
 
    template<typename TYPE>
    auto original::wrapper<TYPE>::toString(const bool enter) const -> std::string
    {
        std::stringstream ss;
        ss << this->className() << "(" << formatString(this) << ", " << formatString(this->getVal()) << ")";
        if (enter) ss << "\n";
        return ss.str();
    }
#endif //WRAPPER_H