// // Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2018 // // Distributed under the Boost Software License, Version 1.0. (See accompanying // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) // #pragma once #include "td/utils/common.h" #include "td/utils/StringBuilder.h" #include <functional> #include <type_traits> namespace td { class NotificationGroupId { public: NotificationGroupId() = default; explicit NotificationGroupId(int32 group_id) : id(group_id) { } template <class T, typename = std::enable_if_t<std::is_convertible<T, int32>::value>> NotificationGroupId(T group_id) = delete; bool is_valid() const { return id > 0; } int32 get() const { return id; } bool operator==(const NotificationGroupId &other) const { return id == other.id; } bool operator!=(const NotificationGroupId &other) const { return id != other.id; } template <class StorerT> void store(StorerT &storer) const { storer.store_int(id); } template <class ParserT> void parse(ParserT &parser) { id = parser.fetch_int(); } private: int32 id{0}; }; struct NotificationGroupIdHash { std::size_t operator()(NotificationGroupId group_id) const { return std::hash<int32>()(group_id.get()); } }; inline StringBuilder &operator<<(StringBuilder &sb, const NotificationGroupId group_id) { return sb << "notification group " << group_id.get(); } } // namespace td