result.h

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#ifndef KOUTIL_ARGS_RESULT_H
#define KOUTIL_ARGS_RESULT_H
 
#include <concepts>
#include <string>
#include <utility>
#include <vector>
 
namespace koutil::args {
 
class result_base_t {
public:
    result_base_t() = default;
 
    [[nodiscard]] bool has_error() const { return !m_errors.empty(); }
 
    [[nodiscard]] bool need_exit() const { return m_exit; }
 
    [[nodiscard]] const auto& errors() const { return m_errors; }
 
    void add_error(std::string error) { m_errors.emplace_back(std::move(error)); }
 
    void exit() { m_exit = true; }
 
private:
    bool m_exit = false;
    std::vector<std::string> m_errors;
};
 
template <typename T>
concept extends_result = std::derived_from<T, result_base_t>;
 
}
 
#endif