boost_optional.hpp

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#pragma once
 
/// @file userver/formats/serialize/boost_optional.hpp
/// @brief Serializers for boost::optional
/// @ingroup userver_universal userver_formats_serialize
 
#include <boost/optional.hpp>
 
#include <userver/formats/common/type.hpp>
#include <userver/formats/serialize/to.hpp>
 
USERVER_NAMESPACE_BEGIN
 
/// Common serializers
namespace formats::serialize {
 
template <typename T, typename Value>
Value Serialize(const boost::optional<T>& value, To<Value>) {
  if (!value) return {};
 
  return typename Value::Builder(*value).ExtractValue();
}
 
}  // namespace formats::serialize
 
USERVER_NAMESPACE_END