mirror of
https://github.com/ecency/ecency-mobile.git
synced 2024-12-18 02:41:39 +03:00
47 lines
1.3 KiB
C++
47 lines
1.3 KiB
C++
/*
|
|
* Copyright 2016 Facebook, Inc.
|
|
*
|
|
* Licensed under the Apache License, Version 2.0 (the "License");
|
|
* you may not use this file except in compliance with the License.
|
|
* You may obtain a copy of the License at
|
|
*
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
|
*
|
|
* Unless required by applicable law or agreed to in writing, software
|
|
* distributed under the License is distributed on an "AS IS" BASIS,
|
|
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
* See the License for the specific language governing permissions and
|
|
* limitations under the License.
|
|
*/
|
|
|
|
#pragma once
|
|
|
|
namespace folly {
|
|
namespace detail {
|
|
|
|
template <typename... Ts>
|
|
struct TryTuple {
|
|
template <typename... Ts2>
|
|
static std::tuple<Ts...> unwrap(
|
|
std::tuple<folly::Try<Ts>...>&& o,
|
|
Ts2&&... ts2) {
|
|
static_assert(
|
|
sizeof...(ts2) < std::tuple_size<std::tuple<folly::Try<Ts>...>>::value,
|
|
"Non-templated unwrap should be used instead");
|
|
|
|
return unwrap(
|
|
std::move(o),
|
|
std::forward<Ts2>(ts2)...,
|
|
std::move(*std::get<sizeof...(ts2)>(o)));
|
|
}
|
|
|
|
static std::tuple<Ts...> unwrap(
|
|
std::tuple<folly::Try<Ts>...>&& /* o */,
|
|
Ts&&... ts) {
|
|
return std::tuple<Ts...>(std::forward<Ts>(ts)...);
|
|
}
|
|
};
|
|
|
|
} // namespace detail
|
|
} // namespace folly
|