Error.h

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#ifndef SDBUS_CXX_ERROR_H_
#define SDBUS_CXX_ERROR_H_
 
#include <cerrno>
#include <stdexcept>
#include <string>
 
namespace sdbus {
 
    /********************************************/
    class Error
        : public std::runtime_error
    {
    public:
        // Strong type representing the D-Bus error name
        class Name : public std::string
        {
        public:
            Name() = default;
            explicit Name(std::string value)
                : std::string(std::move(value))
            {}
            explicit Name(const char* value)
                : std::string(value)
            {}
 
            using std::string::operator=;
        };
 
        explicit Error(Name name, const char* message = nullptr)
            : Error(std::move(name), std::string(message ? message : ""))
        {
        }
 
        Error(Name name, std::string message)
            : std::runtime_error(!message.empty() ? "[" + name + "] " + message : "[" + name + "]")
            , name_(std::move(name))
            , message_(std::move(message))
        {
        }
 
        [[nodiscard]] const Name& getName() const
        {
            return name_;
        }
 
        [[nodiscard]] const std::string& getMessage() const
        {
            return message_;
        }
 
        [[nodiscard]] bool isValid() const
        {
            return !getName().empty();
        }
 
    private:
        Name name_;
        std::string message_;
    };
 
    Error createError(int errNo, std::string customMsg = {});
 
    inline const Error::Name SDBUSCPP_ERROR_NAME{"org.sdbuscpp.Error"};
} // namespace sdbus
 
// NOLINTNEXTLINE(cppcoreguidelines-macro-usage)
#define SDBUS_THROW_ERROR(_MSG, _ERRNO)                         \
    throw sdbus::createError((_ERRNO), (_MSG))                  \
    /**/
// NOLINTNEXTLINE(cppcoreguidelines-macro-usage)
#define SDBUS_THROW_ERROR_IF(_COND, _MSG, _ERRNO)               \
    if (!(_COND)) ; else SDBUS_THROW_ERROR((_MSG), (_ERRNO))    \
    /**/
 
#endif /* SDBUS_CXX_ERROR_H_ */