folly/folly/coro/Result.h

/*
 * Copyright (c) Meta Platforms, Inc. and affiliates.
 *
 * 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

#include <cassert>
#include <type_traits>

#include <folly/CancellationToken.h>
#include <folly/ExceptionWrapper.h>
#include <folly/Try.h>

namespace folly {
namespace coro {

class co_error final { … };

template <typename T>
class co_result final { … };

class co_cancelled_t final { … };

inline constexpr co_cancelled_t co_cancelled{ … };

} // namespace coro
} // namespace folly