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tdlib-fork/td/telegram/files/FileSourceId.h
levlam 80c35676a2 Update copyright year.
GitOrigin-RevId: 09afb551b6e637dc69739fa735b0051a38b9e14c
2020-01-01 04:23:48 +03:00

60 lines
1.3 KiB
C++

//
// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2020
//
// 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 FileSourceId {
int32 id = 0;
public:
FileSourceId() = default;
explicit FileSourceId(int32 file_source_id) : id(file_source_id) {
}
template <class T1, typename = std::enable_if_t<std::is_convertible<T1, int32>::value>>
FileSourceId(T1 file_source_id) = delete;
bool is_valid() const {
return id > 0;
}
int32 get() const {
return id;
}
bool operator<(const FileSourceId &other) const {
return id < other.id;
}
bool operator==(const FileSourceId &other) const {
return id == other.id;
}
bool operator!=(const FileSourceId &other) const {
return id != other.id;
}
};
struct FileSourceIdHash {
std::size_t operator()(FileSourceId file_source_id) const {
return std::hash<int32>()(file_source_id.get());
}
};
inline StringBuilder &operator<<(StringBuilder &string_builder, FileSourceId file_source_id) {
return string_builder << "FileSourceId(" << file_source_id.get() << ")";
}
} // namespace td