template <typename T, SingleLinkEntry T::*Member> class IntrusiveSingleList {
public:
    IntrusiveSingleList() = default;
    IntrusiveSingleList(IntrusiveSingleList &&other) noexcept
        : impl_(std::move(other.impl_)) {}
    IntrusiveSingleList &operator=(IntrusiveSingleList &&other) noexcept {
        if (this != &other) {
            impl_ = std::move(other.impl_);
        }
        return *this;
    }

    CONDY_DELETE_COPY(IntrusiveSingleList);

public:
    void push_back(T *item) noexcept { impl_.push_back(&(item->*Member)); }

    void push_back(IntrusiveSingleList other) noexcept {
        impl_.push_back(other.impl_);
    }

    bool empty() const noexcept { return impl_.empty(); }

    T *pop_front() noexcept {
        SingleLinkEntry *entry = impl_.pop_front();
        if (!entry) {
            return nullptr;
        }
        return container_of(Member, entry);
    }

private:
    SingleLinkListImpl impl_;
};

template <typename T, DoubleLinkEntry T::*Member> class IntrusiveDoubleList {
public:
    IntrusiveDoubleList() = default;
    IntrusiveDoubleList(IntrusiveDoubleList &&other) noexcept
        : impl_(std::move(other.impl_)) {}
    IntrusiveDoubleList &operator=(IntrusiveDoubleList &&other) noexcept {
        if (this != &other) {
            impl_ = std::move(other.impl_);
        }
        return *this;
    }

    CONDY_DELETE_COPY(IntrusiveDoubleList);

public:
    void push_back(T *item) noexcept { impl_.push_back(&(item->*Member)); }

    bool empty() const noexcept { return impl_.empty(); }

    T *pop_front() noexcept {
        DoubleLinkEntry *entry = impl_.pop_front();
        if (!entry) {
            return nullptr;
        }
        return container_of(Member, entry);
    }

    bool remove(T *item) noexcept { return impl_.remove(&(item->*Member)); }

private:
    DoubleLinkListImpl impl_;
};