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Re: Module 'use' chains

by bbfu (Curate)
on Aug 10, 2006 at 05:24 UTC ( #566551=note: print w/ replies, xml ) Need Help??

in reply to Module 'use' chains

A simpler method is to just leave off the package line in your Include module. The module automatically starts in the package of the caller, and thus the chain-included modules will automatically export to the correct place.

# use warnings; use strict; package foo; use Include; funcA(); funcB(); funcC();

# use myA; use myB; use myC; 1;

package myA; use base 'Exporter'; our @EXPORT = qw(funcA); sub funcA { warn "funcA"; } 1;

package myB; use base 'Exporter'; our @EXPORT = qw(funcB); sub funcB { warn "funcB"; } 1;

package myC; use base 'Exporter'; our @EXPORT = qw(funcC); sub funcC { warn "funcC"; } 1;


funcA at line 7. funcB at line 7. funcC at line 7.

Black flowers blossom
Fearless on my breath

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Re^2: Module 'use' chains
by ikegami (Pope) on Aug 10, 2006 at 05:40 UTC

    That will only work the first time use is called. Replace
    use Include;
    BEGIN { do ''; }

Re^2: Module 'use' chains
by tilly (Archbishop) on Aug 10, 2006 at 05:33 UTC
    Perl really works like that? (Tests.) Ugh.

    But note that that only works if the package is used only from within one package.

      You're right. I should have tested it more thoroughly.

      Black flowers blossom
      Fearless on my breath

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