i2pd/libi2pd_webconsole/nlohmann/adl_serializer.hpp
R4SAS a843be75f3
start work on webconsole with templates
Signed-off-by: R4SAS <r4sas@i2pmail.org>
2022-06-07 22:45:53 +03:00

49 lines
2.0 KiB
C++

#pragma once
#include <type_traits>
#include <utility>
#include <nlohmann/detail/conversions/from_json.hpp>
#include <nlohmann/detail/conversions/to_json.hpp>
#include <nlohmann/detail/meta/identity_tag.hpp>
#include <nlohmann/detail/meta/type_traits.hpp>
namespace nlohmann
{
/// @sa https://json.nlohmann.me/api/adl_serializer/
template<typename ValueType, typename>
struct adl_serializer
{
/// @brief convert a JSON value to any value type
/// @sa https://json.nlohmann.me/api/adl_serializer/from_json/
template<typename BasicJsonType, typename TargetType = ValueType>
static auto from_json(BasicJsonType && j, TargetType& val) noexcept(
noexcept(::nlohmann::from_json(std::forward<BasicJsonType>(j), val)))
-> decltype(::nlohmann::from_json(std::forward<BasicJsonType>(j), val), void())
{
::nlohmann::from_json(std::forward<BasicJsonType>(j), val);
}
/// @brief convert a JSON value to any value type
/// @sa https://json.nlohmann.me/api/adl_serializer/from_json/
template<typename BasicJsonType, typename TargetType = ValueType>
static auto from_json(BasicJsonType && j) noexcept(
noexcept(::nlohmann::from_json(std::forward<BasicJsonType>(j), detail::identity_tag<TargetType> {})))
-> decltype(::nlohmann::from_json(std::forward<BasicJsonType>(j), detail::identity_tag<TargetType> {}))
{
return ::nlohmann::from_json(std::forward<BasicJsonType>(j), detail::identity_tag<TargetType> {});
}
/// @brief convert any value type to a JSON value
/// @sa https://json.nlohmann.me/api/adl_serializer/to_json/
template<typename BasicJsonType, typename TargetType = ValueType>
static auto to_json(BasicJsonType& j, TargetType && val) noexcept(
noexcept(::nlohmann::to_json(j, std::forward<TargetType>(val))))
-> decltype(::nlohmann::to_json(j, std::forward<TargetType>(val)), void())
{
::nlohmann::to_json(j, std::forward<TargetType>(val));
}
};
} // namespace nlohmann