build_info.hpp

Go to the documentation of this file.

#ifndef EAGINE_BUILD_INFO_HPP
#define EAGINE_BUILD_INFO_HPP
 
#include "serialize/fwd.hpp"
#include "tribool.hpp"
#include "valid_if/nonnegative.hpp"
#include <tuple>
 
namespace eagine {
 
class build_info {
    friend struct serializer<build_info>;
    friend struct deserializer<build_info>;
 
    using _data_tuple = std::tuple<std::tuple<int, int, int, int>>;
 
public:
    constexpr build_info() noexcept(
      std::is_nothrow_default_constructible_v<_data_tuple>) = default;
 
    static auto query() noexcept -> build_info;
 
    auto version_tuple() const noexcept
      -> const std::tuple<int, int, int, int>& {
        return std::get<0>(_data);
    }
 
    auto version_major() const noexcept -> valid_if_nonnegative<int> {
        return {std::get<0>(version_tuple())};
    }
 
    auto version_minor() const noexcept -> valid_if_nonnegative<int> {
        return {std::get<1>(version_tuple())};
    }
 
    auto version_patch() const noexcept -> valid_if_nonnegative<int> {
        return {std::get<2>(version_tuple())};
    }
 
    auto version_commit() const noexcept -> valid_if_nonnegative<int> {
        return {std::get<3>(version_tuple())};
    }
 
    auto has_version() const noexcept -> bool {
        return version_major() && version_minor();
    }
 
    auto version_at_least(int major, int minor) const -> tribool;
 
    auto version_at_least(int major, int minor, int patch) const -> tribool;
 
    auto version_at_least(int major, int minor, int patch, int commit) const
      -> tribool;
 
private:
    build_info(_data_tuple data) noexcept
      : _data{std::move(data)} {}
 
    _data_tuple _data{{-1, -1, -1, -1}};
};
 
} // namespace eagine
 
#if !EAGINE_LINK_LIBRARY || defined(EAGINE_IMPLEMENTING_LIBRARY)
#include <eagine/build_info.inl>
#endif
 
#endif