February 2001

Slide #34

`Exporter` Again

Recall:

        package Geometry;
        use Exporter;
        @ISA = ('Exporter');

When you say use Geometry 'circle_area' this loads Geometry.pm
Then performs importation
Actually it does

        Geometry->import('circle_area');

There is no Geometry::import, so @ISA is searched
Exporter::import is called:

        Exporter::import('Geometry', 'circle_area');

This is how Exporter knows what to export

Copyright © 2001 M-J. Dominus