QueryableNeedAdjust.hpp

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#ifndef ECSTASY_QUERY_CONCEPTS_QUERYABLENEEDADJUST_HPP_
#define ECSTASY_QUERY_CONCEPTS_QUERYABLENEEDADJUST_HPP_
 
#include "Queryable.hpp"
 
namespace ecstasy::query
{
    template <typename Q>
    concept QueryableObjectNeedAdjust = requires(Q &queryable, std::size_t maxSize) {
        requires QueryableObject<Q>;
 
        // clang-format off
        { queryable.adjustMask(maxSize) } -> std::same_as<void>;
        // clang-format on
    };
 
    template <typename Q>
    concept QueryableWrapperNeedAdjust = requires(Q &queryable, std::size_t maxSize) {
        requires QueryableWrapper<Q>;
 
        // clang-format off
        { queryable->adjustMask(maxSize) } -> std::same_as<void>;
        // clang-format on
    };
 
    template <typename Q>
    concept QueryableNeedAdjust = QueryableObjectNeedAdjust<Q> || QueryableWrapperNeedAdjust<Q>;
 
    template <typename T>
    constexpr void adjustMask([[maybe_unused]] T &queryable, [[maybe_unused]] size_t maxSize) noexcept
    {
    }
 
    template <QueryableNeedAdjust Q>
    constexpr void adjustMask(Q &queryable, size_t maxSize)
    {
        if constexpr (QueryableWrapper<Q>)
            queryable->adjustMask(maxSize);
        else
            queryable.adjustMask(maxSize);
    }
 
    template <typename T>
    struct is_queryable_with_adjust : public std::false_type {};
 
    template <QueryableNeedAdjust T>
    struct is_queryable_with_adjust<T> : public std::true_type {};
 
    template <typename T>
    static constexpr inline bool is_queryable_with_adjust_v = is_queryable_with_adjust<T>::value;
} // namespace ecstasy::query
 
#endif /* !ECSTASY_QUERY_CONCEPTS_QUERYABLENEEDADJUST_HPP_ */