collection_common.hpp

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#pragma once
#include "../../../self.hpp"

namespace xtd {
  namespace collections {
    namespace generic {
      namespace extensions {
        template<class type_t, class collection_t>
        class collection_common {
        public:
          
          virtual bool empty() const noexcept {return static_cast<const collection_t&>(self_).count() == 0;}
          
          virtual xtd::size size() const noexcept {return static_cast<const collection_t&>(self_).count();}
          
          
          virtual collection_t& operator <<(const type_t& item) {
            auto& self = static_cast<collection_t&>(self_);
            self.add(item);
            return self;
          }
          
          virtual collection_t& operator <<(type_t&& item) {
            auto& self = static_cast<collection_t&>(self_);
            self.add(std::move(item));
            return self;
          }
          
          virtual collection_t& operator >>(const type_t& item) {
            auto& self = static_cast<collection_t&>(self_);
            self.remove(item);
            return self;
          }

          
        private:
          friend collection_t;
          collection_common() = default;
        };
      }
    }
  }
}