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