json_basics.hh

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// JSON lib.
 
#pragma once
 
#ifdef UG_JSON
#include <nlohmann/json.hpp>
#endif
 
namespace ug {
 
// #define UG4_WITH_JSON
#ifdef UG_JSON
typedef nlohmann::json JSONType;
using JSONPointer = nlohmann::json::json_pointer;
#endif
 
#ifdef UG_JSON
 
template <class T>
struct is_json_constructible
{
  const static bool value = std::is_default_constructible<T>::value;
};
 
template <class T>
inline constexpr bool is_json_constructible_v = is_json_constructible<T>::value;
 
 
template <typename P>
SmartPtr<P> JSONSerializer(const char *jstring)
{
  UG_COND_THROW(! is_json_constructible_v<P>, "ERROR: Type is not constructible!")
  SmartPtr<P> data = make_sp(new P());
  nlohmann::json j = nlohmann::json::parse(jstring);
  j.get_to<P>(*data);
  return data;
 
};
#endif
 
 
} // namespace ug