I'm using the NamedType library (a simplified copy, using C++11 on an ESP32 platform) to implement a NodeId type, based on an uint16_t.
The configuration of our device is read form a json file, and we're using ArduinoJson library for that. I would like a way to create a NodeId instance from an element of that Json document, a JsonVariantConst instance from ArduinoJson.
I added an extra constructor to the NamedType template class and this works:
The <T> of course refers to the base type of the NamedType, so this only works if ArduinoJson actually supports that type in their as<T>() method.
I think it would be better if I could add such a feature as a Skill so I can also define NamedTypes which do not poses this skill, but my personal templating skills are not good enough to get this done.
I'm using the NamedType library (a simplified copy, using C++11 on an ESP32 platform) to implement a NodeId type, based on an uint16_t. The configuration of our device is read form a json file, and we're using ArduinoJson library for that. I would like a way to create a NodeId instance from an element of that Json document, a JsonVariantConst instance from ArduinoJson.
I added an extra constructor to the NamedType template class and this works:
NamedType(JsonVariantConst json) : value_(json.as<T>()) {}The
<T>of course refers to the base type of the NamedType, so this only works if ArduinoJson actually supports that type in theiras<T>()method.I think it would be better if I could add such a feature as a Skill so I can also define NamedTypes which do not poses this skill, but my personal templating skills are not good enough to get this done.
Can anybody help me with this?