tdesktop/Telegram/SourceFiles/base/match_method.h
John Preston 83786ddeaf Export chat messages photos and documents.
Also rename .visit() with .match() in MTP types.
Also add base::match_method() and base::match() for base::variant.
Also add base::match() and .match() for base::optional_variant.
2018-06-14 01:09:48 +03:00

29 lines
726 B
C++

/*
This file is part of Telegram Desktop,
the official desktop application for the Telegram messaging service.
For license and copyright information please follow this link:
https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
*/
#pragma once
#include <rpl/details/callable.h>
namespace base {
template <typename Data, typename Method, typename ...Methods>
inline decltype(auto) match_method(
Data &&data,
Method &&method,
Methods &&...methods) {
if constexpr (rpl::details::is_callable_plain_v<Method, Data&&>) {
return std::forward<Method>(method)(std::forward<Data>(data));
} else {
return match_method(
std::forward<Data>(data),
std::forward<Methods>(methods)...);
}
}
} // namespace base