Function ExtractValue

Engine/source/EtCore/Reflection/serialization.cpp:603–639

--------------------------------- ExtractValue Extracts a json basic type or object to an rttr variant, if it is neither it will return an invalid variant

// Extracts a json basic type or object to an rttr variant, if it is neither it will return an invalid variant
//
rttr::variant ExtractValue(JSON::Value const* const jVal, const rttr::type& valueType)
{
	// try converting from a basic type
	rttr::variant extractedVal = ExtractBasicTypes(jVal);

	// if that doesn't work, try an object
	if (!extractedVal.convert(valueType))
	{
		if (jVal->GetType() == JSON::JSON_Object)
		{
			// find the right constructor for our type
			rttr::constructor ctor = valueType.get_constructor();
			for (auto& item : valueType.get_constructors())
			{
				if (item.get_instantiated_type() == valueType)
				{
					ctor = item;
				}
			}

			//use it
			extractedVal = ctor.invoke();

			JSON::Value const* localJVal = jVal;
			rttr::type localType = valueType;
			if (!ExtractPointerValueType(localType, localJVal))
			{
				return rttr::variant();
			}

			// fill the rest of our object
			ObjectFromJsonRecursive(localJVal, extractedVal, localType);
		}
	}

	return extractedVal;
}

//---------------------------------
// AssociativeViewFromJsonRecursive