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lambda_as_function.h
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1/*
2 * Copyright © Canonical Ltd.
3 *
4 * This program is free software: you can redistribute it and/or modify it
5 * under the terms of the GNU General Public License version 2 or 3 as
6 * published by the Free Software Foundation.
7 *
8 * This program is distributed in the hope that it will be useful,
9 * but WITHOUT ANY WARRANTY; without even the implied warranty of
10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
11 * GNU General Public License for more details.
12 *
13 * You should have received a copy of the GNU General Public License
14 * along with this program. If not, see <http://www.gnu.org/licenses/>.
15 */
16
17#ifndef MIRAL_LAMBDA_AS_FUNCTION_H
18#define MIRAL_LAMBDA_AS_FUNCTION_H
19
20#include <functional>
21
22namespace miral
23{
24namespace detail
25{
26template <class F> struct FunctionType;
27
28template<typename Lambda, typename Return, typename... Arg>
29struct FunctionType<Return (Lambda::*)(Arg...)> { using type = std::function<Return(Arg...)>; };
30
31template<typename Lambda, typename Return, typename... Arg>
32struct FunctionType<Return (Lambda::*)(Arg...) const> { using type = std::function<Return(Arg...)>; };
33}
34
35template<typename Lambda>
36auto lambda_as_function(Lambda&& lambda) -> typename detail::FunctionType<decltype(&Lambda::operator())>::type
37{
38 return typename detail::FunctionType<decltype(&Lambda::operator())>::type(std::forward<Lambda>(lambda));
39}
40}
41
42#endif //MIRAL_LAMBDA_AS_FUNCTION_H
Mir Abstraction Layer.
Definition floating_window_manager.h:29
auto lambda_as_function(Lambda &&lambda) -> typename detail::FunctionType< decltype(&Lambda::operator())>::type
Definition lambda_as_function.h:36
std::function< Return(Arg...)> type
Definition lambda_as_function.h:32
std::function< Return(Arg...)> type
Definition lambda_as_function.h:29
Definition lambda_as_function.h:26

Copyright © 2012-2024 Canonical Ltd.
Generated on Sat Aug 17 07:04:01 UTC 2024
This documentation is licensed under the GPL version 2 or 3.