[Question] What is the definition of “private” fields in QOM?

[Zhao Liu <zhao1.liu@intel.com>]

Hi maintainers and list,

In the QOM structure, the class and object structs have two members:
parent_class and parent_obj, which are often marked as "< private >" in
the comment.

I couldn’t find information on why to define ‘private’ and ‘public’,
even in the earliest QOM commits and the patch emails I could find.

Does ‘private’ refer to the internal implementation code of QOM, or does
it refer to the specific code that defines and implements this object
and its class?

I understand the original idea of private field indicates it cannot be
accessed directly out of the "private" scope.

Regards,
Zhao