In Perl 6 terms, it "does" Exporter rather than "is" Exporter. That is, Exporter is a role rather than a class. (It's a form of composition, really.) The Exporter role in Perl 6 would presumably supply importation as a submethod rather than a method, so that it's not inherited by subclasses.

It could also be done with delegation, but in that case it "has" an Exporter object.

Of course, Perl 6 might not use an Exporter class or role at all, since the standard export mechanism will be built in, and (we hope) fast.

In reply to Re^4: "use base" or @ISA by TimToady
in thread "use base" or @ISA by uwevoelker

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