'use base' issue

jeanluca has asked for the wisdom of the Perl Monks concerning the following question:

Dear Monks,

I think the best way to make my problem visible is with an example:

# main

use base qw(A) ;

&test() ;

package A ;
sub test {

}
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Well, this doesn't work. It works when I call test like:A::test(), but in that case I can replace

  use base qw(A) ;
to
  use A ;
[download]

So I assume package A has to export its subs, right ?
But in that case I can as well use: use A;.....
Can someone help me out here with how (and when) to use the base class?

Thanks
Luca

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Re: 'use base' issue by adrianh (Chancellor) on Mar 08, 2006 at 11:00 UTC
Can someone help me out here with how (and when) to use the base class? base is a convenient shortcut for using a module and setting @ISA. You'll only use it in OO code - not for exporting things. base does not call a modules import() method - so nothing will ever be exported into another package by the normal mechanisms.	[reply]
Re: 'use base' issue by davorg (Chancellor) on Mar 08, 2006 at 11:04 UTC
See the docs for base. It's used for setting the `@ISA` variable at the same time as loading a module. It would be very rare to find a use for it outside of OO code. -- <http://dave.org.uk> "The first rule of Perl club is you do not talk about Perl club." -- Chip Salzenberg	[reply]
Re^2: 'use base' issue by gargle (Chaplain) on Mar 09, 2006 at 10:25 UTC
Depending even on the kind of OO you're doing. If using the Object::InsideOut CPAN module you actually don't have to do a 'use base'! -- if ( 1 ) { $postman->ring() for (1..2); }	[reply]
Re: 'use base' issue by jeanluca (Deacon) on Mar 08, 2006 at 11:11 UTC
Oooooh, I think I missed the OO part!! Thanks	[reply]