Perl: Exporting variables in a subclass

Posted by Jonathan on Stack Overflow See other posts from Stack Overflow or by Jonathan
Published on 2010-04-20T00:49:38Z Indexed on 2010/04/20 0:53 UTC
Read the original article Hit count: 400

Filed under:
|
|
|
|

I have a base class like this:

package MyClass;

use vars qw/$ME list of vars/;
use Exporter;
@ISA = qw/Exporter/;
@EXPORT_OK = qw/ many variables & functions/;
%EXPORT_TAGS = (all => \@EXPORT_OK );

sub my_method {

}
sub other_methods etc {

}

--- more code---

I want to subclass MyClass, but only for one method.

package MySubclass;

use MyClass;
use vars qw/@ISA/;
@ISA = 'MyClass';

sub my_method {

--- new method

}

And I want to call this MySubclass like I would the original MyClass, and still have access to all of the variables and functions from exporter. However I am having problems getting the Exporter variables from the original class, MyClass, to export correctly. Do I need to run exporter again inside the subclass? That seems redundant and unclear.

Example file:

#!/usr/bin/perl

use MySubclass /$ME/;

-- rest of code

But I get compile errors when I try to import the $ME variable. Any suggestions?

© Stack Overflow or respective owner

Related posts about perl

Related posts about exporter