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74 lines
2.5 KiB
C++
74 lines
2.5 KiB
C++
#pragma once
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#include <type_traits>
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#include <utility>
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#include <nlohmann/detail/conversions/from_json.hpp>
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#include <nlohmann/detail/conversions/to_json.hpp>
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#include <nlohmann/detail/meta/identity_tag.hpp>
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#include <nlohmann/detail/meta/type_traits.hpp>
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namespace nlohmann
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{
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template<typename ValueType, typename>
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struct adl_serializer
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{
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/*!
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@brief convert a JSON value to any value type
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This function is usually called by the `get()` function of the
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@ref basic_json class (either explicit or via conversion operators).
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@note This function is chosen for default-constructible value types.
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@param[in] j JSON value to read from
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@param[in,out] val value to write to
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*/
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template<typename BasicJsonType, typename TargetType = ValueType>
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static auto from_json(BasicJsonType && j, TargetType& val) noexcept(
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noexcept(::nlohmann::from_json(std::forward<BasicJsonType>(j), val)))
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-> decltype(::nlohmann::from_json(std::forward<BasicJsonType>(j), val), void())
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{
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::nlohmann::from_json(std::forward<BasicJsonType>(j), val);
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}
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/*!
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@brief convert a JSON value to any value type
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This function is usually called by the `get()` function of the
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@ref basic_json class (either explicit or via conversion operators).
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@note This function is chosen for value types which are not default-constructible.
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@param[in] j JSON value to read from
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@return copy of the JSON value, converted to @a ValueType
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*/
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template<typename BasicJsonType, typename TargetType = ValueType>
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static auto from_json(BasicJsonType && j) noexcept(
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noexcept(::nlohmann::from_json(std::forward<BasicJsonType>(j), detail::identity_tag<TargetType> {})))
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-> decltype(::nlohmann::from_json(std::forward<BasicJsonType>(j), detail::identity_tag<TargetType> {}))
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{
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return ::nlohmann::from_json(std::forward<BasicJsonType>(j), detail::identity_tag<TargetType> {});
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}
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/*!
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@brief convert any value type to a JSON value
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This function is usually called by the constructors of the @ref basic_json
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class.
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@param[in,out] j JSON value to write to
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@param[in] val value to read from
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*/
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template<typename BasicJsonType, typename TargetType = ValueType>
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static auto to_json(BasicJsonType& j, TargetType && val) noexcept(
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noexcept(::nlohmann::to_json(j, std::forward<TargetType>(val))))
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-> decltype(::nlohmann::to_json(j, std::forward<TargetType>(val)), void())
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{
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::nlohmann::to_json(j, std::forward<TargetType>(val));
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}
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};
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} // namespace nlohmann
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