Hi all, In doing a bit of work with traits (roles) in Perl 5 (http://perlmonks.org/?node_id=577477), I've realized some edge cases which could be problematic.
First, when a role is applied to a class at runtime, a instance of that class in another scope may specifically *not* want that role. Is there a way of restricting a role to a particular lexical scope short of merely applying that role to instances instead of classes? Second, how can I remove roles from classes? I've create some code which adds an "is_selected" method to some classes but when I'm done, I'd like top easily remove that role. How do I do that? Seems closely related to my first question, but it's still a distinct issue, I think. Third, http://dev.perl.org/perl6/doc/design/syn/S12.html says: You can also mixin a precomposed set of roles: $fido does Sentry | Tricks | TailChasing | Scratch; Should that be the following? $fido does Sentry & Tricks & TailChasing & Scratch; Cheers, Ovid -- Buy the book -- http://www.oreilly.com/catalog/perlhks/ Perl and CGI -- http://users.easystreet.com/ovid/cgi_course/
