On Thu, Mar 10, 2005 at 02:22:20PM -0600, Rod Adams wrote:
> David Storrs wrote:
> >On Wed, Mar 09, 2005 at 03:38:52PM -0600, Rod Adams wrote:
> >> use Foo; # from above, exports &bar is MMD::Random
> >> multi sub bar {...}
> >>
> >>Does this generate an error, since one could expect this particular &bar
> >>to be Manhattan? Or does it assume Random, since there's already a &bar
> >>in existence?
> >
> >This seems like action-at-a-distance to me;
> >
> Well, if you were not expecting Foo to export some &bar's, then you're
> in for a surprise regardless of dispatch when you call &bar in your code
> and one of Foo::bar gets called instead of one of yours, because it was
> a closer match.
>
> I would say that people should know what they are getting into when they
> C< use > something.
What I'm hearing you say here is "Yes, it's action-at-a-distance, but
it's your job to make sure it doesn't trip you up." The problem that
I see is that I may well be able to keep track of everything from the
modules I import, but what about the ones THEY import...and the ones
THEY import...and so on. In a medium-to-large software project, that
can get to be a lot of modules, very quickly.
--Dks
