63     virtual void internal_add_copy(const Item& item) = 0;
64     virtual void internal_add_move(Item&& item) = 0;
69     void add(const Item& item) {internal_add_copy(item);}  in add()  argument
70     void add(Item&& item) {internal_add_move(std::move(item));}  in add()  argument
83     static auto call(const Body& body, ItemArg&& item, FeederArg*)
84     -> decltype(tbb::detail::invoke(body, std::forward<ItemArg>(item)), void()) {
91         tbb::detail::invoke(body, std::forward<ItemArg>(item));
99     static auto call(const Body& body, ItemArg&& item, FeederArg* feeder)
100     -> decltype(tbb::detail::invoke(body, std::forward<ItemArg>(item), *feeder), void()) {
108         tbb::detail::invoke(body, std::forward<ItemArg>(item), *feeder);
122         item(std::forward<ItemType>(input_item)),  in feeder_item_task()
150         call(my_feeder.my_body, item, my_feeder, first_priority{});  in execute()
160     Item item;  member
170     void internal_add_copy_impl(std::true_type, const Item& item) {  in internal_add_copy_impl()  argument
173         auto task = alloc.new_object<feeder_task>(item, *this, alloc);  in internal_add_copy_impl()
183     void internal_add_copy(const Item& item) override {  in internal_add_copy()  argument
184         internal_add_copy_impl(typename std::is_copy_constructible<Item>::type(), item);  in internal_add_copy()
187     void internal_add_move(Item&& item) override {  in internal_add_move()  argument
190         auto task = alloc.new_object<feeder_task>(std::move(item), *this, alloc);  in internal_add_move()