92 lines
2.1 KiB
C++
92 lines
2.1 KiB
C++
//
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// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2022
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//
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// Distributed under the Boost Software License, Version 1.0. (See accompanying
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// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
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//
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#pragma once
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#include "td/telegram/Version.h"
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#include "td/utils/common.h"
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#include "td/utils/StringBuilder.h"
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#include <functional>
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#include <type_traits>
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namespace td {
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class UserId {
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int64 id = 0;
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public:
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static constexpr int64 MAX_USER_ID = (static_cast<int64>(1) << 40) - 1;
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UserId() = default;
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explicit UserId(int64 user_id) : id(user_id) {
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}
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template <class T, typename = std::enable_if_t<std::is_convertible<T, int64>::value>>
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UserId(T user_id) = delete;
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static vector<UserId> get_user_ids(const vector<int64> &input_user_ids) {
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vector<UserId> user_ids;
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user_ids.reserve(input_user_ids.size());
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for (auto &input_user_id : input_user_ids) {
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user_ids.emplace_back(input_user_id);
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}
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return user_ids;
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}
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static vector<int64> get_input_user_ids(const vector<UserId> &user_ids) {
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vector<int64> input_user_ids;
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input_user_ids.reserve(user_ids.size());
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for (auto &user_id : user_ids) {
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input_user_ids.emplace_back(user_id.get());
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}
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return input_user_ids;
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}
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bool is_valid() const {
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return 0 < id && id <= MAX_USER_ID;
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}
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int64 get() const {
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return id;
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}
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bool operator==(const UserId &other) const {
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return id == other.id;
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}
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bool operator!=(const UserId &other) const {
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return id != other.id;
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}
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template <class StorerT>
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void store(StorerT &storer) const {
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storer.store_long(id);
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}
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template <class ParserT>
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void parse(ParserT &parser) {
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if (parser.version() >= static_cast<int32>(Version::Support64BitIds)) {
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id = parser.fetch_long();
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} else {
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id = parser.fetch_int();
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}
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}
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};
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struct UserIdHash {
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std::size_t operator()(UserId user_id) const {
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return std::hash<int64>()(user_id.get());
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}
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};
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inline StringBuilder &operator<<(StringBuilder &string_builder, UserId user_id) {
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return string_builder << "user " << user_id.get();
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}
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} // namespace td
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