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tdesktop-new-cmake/src/TelegramLibs/base/match_method.h

52 lines
1.3 KiB
C++

// This file is part of Desktop App Toolkit,
// a set of libraries for developing nice desktop applications.
//
// For license and copyright information please follow this link:
// https://github.com/desktop-app/legal/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) {
using namespace rpl::details;
if constexpr (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)...);
}
}
template <
typename Data1,
typename Data2,
typename Method,
typename ...Methods>
inline decltype(auto) match_method2(
Data1 &&data1,
Data2 &&data2,
Method &&method,
Methods &&...methods) {
using namespace rpl::details;
if constexpr (is_callable_plain_v<Method, Data1&&, Data2&&>) {
return std::forward<Method>(method)(
std::forward<Data1>(data1),
std::forward<Data2>(data2));
} else {
return match_method2(
std::forward<Data1>(data1),
std::forward<Data2>(data2),
std::forward<Methods>(methods)...);
}
}
} // namespace base