/*
- * Copyright 2017 Facebook, Inc.
+ * Copyright 2012-present Facebook, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
-
#pragma once
/*
#include <type_traits>
#include <utility>
-#include <folly/Launder.h>
#include <folly/Portability.h>
#include <folly/Traits.h>
#include <folly/Utility.h>
+#include <folly/lang/Launder.h>
namespace folly {
const None none = nullptr;
-class OptionalEmptyException : public std::runtime_error {
+class FOLLY_EXPORT OptionalEmptyException : public std::runtime_error {
public:
OptionalEmptyException()
: std::runtime_error("Empty Optional cannot be unwrapped") {}
} // namespace folly
// This makes folly::Optional<Value> useable as a coroutine return type..
-FOLLY_NAMESPACE_STD_BEGIN
+namespace std {
namespace experimental {
template <typename Value, typename... Args>
struct coroutine_traits<folly::Optional<Value>, Args...> {
using promise_type = folly::detail::OptionalPromise<Value>;
};
} // namespace experimental
-FOLLY_NAMESPACE_STD_END
+} // namespace std
#endif // FOLLY_HAS_COROUTINES