Re: [Swig-user] Python --builtin and object ownership

[Stefan Z. <sz...@gm...>]

On Fri, Aug 12, 2011 at 10:12 PM, Zvi Tarem <zvi...@gm...> wrote:
> I have a C++ container class that takes ownership of objects that are
> inserted into it (that is - the container deletes the contained objects when
> it is destructed).
> Before --builtin, the following line worked:
> %pythonprepend Container::insert { args[0].thisown = False }
> With --builtin, there is no shadow class to modify.
> In principle, if there was a way to refer to wrapped versions of classes in
> %extend, for example, this could be done because wrapped versions of classes
> have the thisown property, as well as the disown() method.

I think you can accomplish this with the DISOWN typemap:

%apply SWIGTYPE *DISOWN { MyObject *obj_to_insert };

Make sure that the %apply directive is applied only to the
Container::insert method.

Stefan