http://www.perlmonks.org?node_id=360175


in reply to Re^3: Open to debate on mixins and traits.
in thread Open to debate on mixins and traits.

I don't see why Perl needs interfaces in any form, they're just there to satisfy the compiler in statically typed languages, aren't they?

No they're not ;-) Not if we're using the term as used in Java land anyway. They're a way of talking about common behaviour that cuts across class hierarchy boundaries.

In Perl 6 they're subsumed by roles (a Java interface would the equivalent to a role without any implementation code.)

(Note: Apply my standard "I've not read A12 properly yet" disclaimer to the previous sentence, but I'm sure chromatic will correct me if I'm wrong :-)