It's not Squeak-based, but see section 4 in this paper:
http://portal.acm.org/citation.cfm?doid=1066129.1066137

Good luck,

e

Alejandro Gonzalez wrote:
> Hello everybody!
>
> I'm starting a research on refactorings & traits as part of a project 
> ( that luckily :-) could end as my thesis ).
> Since I'm a newbie, my fist step is this email.
> The idea and scope are not closed yet but at a first glance the idea 
> is to add refatoring tools to Squeak for traits, but this original 
> idea may slightly change since it is being defined as I get knowledge 
> about the topic.
> Every paper, link, idea, resource, suggestion about this topic will be 
> happily welcomed.
> For sure, as soon as I make some progress, I'll share the results with 
> any interested on this thread.
>
> Thanks in advance
> Alejandro
>
>