Not.hpp

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#ifndef ECSTASY_QUERY_MODIFIER_NOT_HPP_
#define ECSTASY_QUERY_MODIFIER_NOT_HPP_
 
#include "Modifier.hpp"
#include "ecstasy/query/concepts/Queryable.hpp"
#include "util/BitSet.hpp"
 
namespace ecstasy::query::modifier
{
    template <Queryable Q, bool AutoLock = false>
    class Not : public Modifier<AutoLock> {
      public:
        using Internal = queryable_qualifiers_t<Q, AutoLock>;
 
        using Operands = util::meta::Traits<Q>;
 
        using QueryData = queryable_data_t<Q>;
 
        Not(Q &internal) : _internal(internal), _mask(getQueryableMask(internal))
        {
            _mask.flip();
        }
 
        [[nodiscard]] constexpr const util::BitSet &getMask() const noexcept
        {
            return _mask;
        }
 
        [[nodiscard]] QueryData getQueryData(size_t index)
        {
            return getQueryableData(_internal, index);
        }
 
        void reloadMask()
        {
            _mask = ~getQueryableMask(_internal);
        }
 
        constexpr void adjustMask(size_t maxSize)
        {
            if (maxSize > _mask.size()) {
                _mask.resize(maxSize);
                _mask.setAll();
                _mask.inplaceXor(getQueryableMask(_internal));
            }
        }
 
      private:
        Internal _internal;
        util::BitSet _mask;
    };
} // namespace ecstasy::query::modifier
 
#endif /* !ECSTASY_QUERY_MODIFIER_NOT_HPP_ */