// // 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 FileId { int32 id = 0; int32 remote_id = 0; public: FileId() = default; FileId(int32 file_id, int32 remote_id) : id(file_id), remote_id(remote_id) { } template <class T1, class T2, typename = std::enable_if_t<std::is_convertible<T1, int32>::value>, typename = std::enable_if_t<std::is_convertible<T2, int32>::value>> FileId(T1 file_id, T2 remote_id) = delete; bool empty() const { return id <= 0; } bool is_valid() const { return id > 0; } int32 get() const { return id; } int32 get_remote() const { return remote_id; } bool operator<(const FileId &other) const { return id < other.id; } bool operator==(const FileId &other) const { return id == other.id; } bool operator!=(const FileId &other) const { return id != other.id; } }; struct FileIdHash { std::size_t operator()(FileId file_id) const { return std::hash<int32>()(file_id.get()); } }; inline StringBuilder &operator<<(StringBuilder &string_builder, FileId file_id) { return string_builder << file_id.get() << "(" << file_id.get_remote() << ")"; } } // namespace td