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chore: allow arbitary type conversions for ordered_json

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This commit is contained in:
Jan Laupetin
2026-04-20 19:50:11 +01:00
parent 80dc487d5a
commit 0ae7186409
1 changed files with 13 additions and 7 deletions
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20
src/Utils/Json/JsonExtension.h
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@@ -14,17 +14,19 @@
// partial specialization (full specialization works too)
namespace nlohmann
{
template<class T> void optional_to_json(nlohmann::json& j, const char* name, const std::optional<T>& value)
template<class T, typename BasicJsonType, detail::enable_if_t<detail::is_basic_json<BasicJsonType>::value, int> = 0>
void optional_to_json(BasicJsonType& j, const char* name, const std::optional<T>& value)
{
if (value)
j[name] = *value;
}
template<class T> void optional_from_json(const nlohmann::json& j, const char* name, std::optional<T>& value)
template<class T, typename BasicJsonType, detail::enable_if_t<detail::is_basic_json<BasicJsonType>::value, int> = 0>
void optional_from_json(const BasicJsonType& j, const char* name, std::optional<T>& value)
{
const auto it = j.find(name);
if (it != j.end() && !it->is_null())
value = it->get<T>();
value = it->template get<T>();
else
value = std::nullopt;
}
@@ -32,7 +34,8 @@ namespace nlohmann
template<typename> constexpr bool is_optional = false;
template<typename T> constexpr bool is_optional<std::optional<T>> = true;
template<typename T> void extended_to_json(const char* key, nlohmann::json& j, const T& value)
template<typename T, typename BasicJsonType, detail::enable_if_t<detail::is_basic_json<BasicJsonType>::value, int> = 0>
void extended_to_json(const char* key, BasicJsonType& j, const T& value)
{
if constexpr (is_optional<T>)
nlohmann::optional_to_json(j, key, value);
@@ -40,7 +43,8 @@ namespace nlohmann
j[key] = value;
}
template<typename T> void extended_from_json(const char* key, const nlohmann::json& j, T& value)
template<typename T, typename BasicJsonType, detail::enable_if_t<detail::is_basic_json<BasicJsonType>::value, int> = 0>
void extended_from_json(const char* key, const BasicJsonType& j, T& value)
{
if constexpr (is_optional<T>)
nlohmann::optional_from_json(j, key, value);
@@ -53,11 +57,13 @@ namespace nlohmann
#define EXTEND_JSON_FROM(v1) extended_from_json(#v1, nlohmann_json_j, nlohmann_json_t.v1);
#define NLOHMANN_DEFINE_TYPE_EXTENSION(Type, ...) \
inline void to_json(nlohmann::json& nlohmann_json_j, const Type& nlohmann_json_t) \
template<typename BasicJsonType, nlohmann::detail::enable_if_t<nlohmann::detail::is_basic_json<BasicJsonType>::value, int> = 0> \
inline void to_json(BasicJsonType& nlohmann_json_j, const Type& nlohmann_json_t) \
{ \
NLOHMANN_JSON_EXPAND(NLOHMANN_JSON_PASTE(EXTEND_JSON_TO, __VA_ARGS__)) \
} \
inline void from_json(const nlohmann::json& nlohmann_json_j, Type& nlohmann_json_t) \
template<typename BasicJsonType, nlohmann::detail::enable_if_t<nlohmann::detail::is_basic_json<BasicJsonType>::value, int> = 0> \
inline void from_json(const BasicJsonType& nlohmann_json_j, Type& nlohmann_json_t) \
{ \
NLOHMANN_JSON_EXPAND(NLOHMANN_JSON_PASTE(EXTEND_JSON_FROM, __VA_ARGS__)) \
}