enum class eOperandType
{
    Int8,
    Int16,
    Int32,
    Float,
    Double,
    None,
};

class IOperand
{
public:
    [[nodiscard]] virtual int getPrecision() const = 0;
    // Precision of the type of the instance
    [[nodiscard]] virtual eOperandType  getType() const = 0;
    // Type of the instance
    virtual IOperand const* operator+(const IOperand& rhs) const = 0;
    // Sum
    virtual IOperand const* operator-(const IOperand& rhs) const = 0;
    // Difference
    virtual IOperand const* operator*(const IOperand& rhs) const = 0;
    // Product
    virtual IOperand const* operator/(const IOperand& rhs) const = 0;
    // Quotient
    virtual IOperand const* operator%(const IOperand& rhs) const = 0;
    // Modulo
    [[nodiscard]] virtual std::string const & toString() const = 0;
    // String representation of the instance
    virtual ~IOperand() = default;
};

/////////////////////////////////////////

class OInt8 : public IOperand
{
public:
    explicit OInt8(int8_t val);
    explicit OInt8(const std::string &raw);
    [[nodiscard]] int getPrecision() const override ;
    [[nodiscard]] eOperandType  getType() const override;
    IOperand const* operator+(const IOperand& rhs) const override;
    IOperand const* operator-(const IOperand& rhs) const override;
    IOperand const* operator*(const IOperand& rhs) const override;
    IOperand const* operator/(const IOperand& rhs) const override;
    IOperand const* operator%(const IOperand& rhs) const override;
    [[nodiscard]] std::string const & toString() const override;

private:
    int8_t value_;
    std::string raw_;
};