newobject and feature("ref")

Hi all,

I want to use my own reference counting when wrapping my classes. When using
%feature("ref") and %newobject the reference counter will be increased only in
methods of classes derived from RefCountObject. I thought the ref/unref
feature is applied to any return type derived from RefCountObject when
%newobject is used.

A small example is given in test.h/test.i. Creator1, Creator2 and a global
function create instances of type RefCountObject, but only the reference
counter of instances returned by Creator2 are increased. Creator2 is the only
class that also derives from RefCountObject.

Is that behaviour intended or did I miss something important? I want to use
tool classes that do not derive from RefCountObject but creating or returning
RefCountObject's.

I tried swig 1.3.35 - 1.3.39.

Best regards,
Jan
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