tdlight/td/telegram/UserId.h

84 lines
1.9 KiB
C
Raw Normal View History

//
2021-01-01 13:57:46 +01:00
// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2021
//
// 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 UserId {
int32 id = 0;
public:
UserId() = default;
explicit UserId(int32 user_id) : id(user_id) {
}
template <class T, typename = std::enable_if_t<std::is_convertible<T, int32>::value>>
UserId(T user_id) = delete;
static vector<UserId> get_user_ids(const vector<int32> &input_user_ids) {
vector<UserId> user_ids;
user_ids.reserve(input_user_ids.size());
for (auto &input_user_id : input_user_ids) {
user_ids.emplace_back(input_user_id);
}
return user_ids;
}
static vector<int32> get_input_user_ids(const vector<UserId> &user_ids) {
vector<int32> input_user_ids;
input_user_ids.reserve(user_ids.size());
for (auto &user_id : user_ids) {
input_user_ids.emplace_back(user_id.get());
}
return input_user_ids;
}
bool is_valid() const {
return id > 0;
}
int32 get() const {
return id;
}
bool operator==(const UserId &other) const {
return id == other.id;
}
bool operator!=(const UserId &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();
}
};
struct UserIdHash {
std::size_t operator()(UserId user_id) const {
return std::hash<int32>()(user_id.get());
}
};
inline StringBuilder &operator<<(StringBuilder &string_builder, UserId user_id) {
return string_builder << "user " << user_id.get();
}
} // namespace td