Hello Monks

I'm doing some preliminary tests on factory design pattern with PERL and I've found the following issue. If I implement my factory like this, I have no problem. 

package GreetFactory;
use strict; use warnings;
use lib './Greet';

sub instantiate {
    my $class          = shift;
    my $requested_type = shift;
    my $location       = "Greet/$requested_type.pm";
    $class          = "Greet::$requested_type";
    require $location;
    return $class->new(@_);
}
1;

[download]

But if I implement my factory like that, then a load error is displayed (Can't locate object method "new" via package "lib::Repeat" (perhaps you forgot to load "lib::Repeat"?) at GreetFactory.pm line 13). 

package GreetFactory;
use strict; use warnings;
use lib './lib';

sub instantiate {
    my $class          = shift;
    my $requested_type = shift;
    my $location       = "lib/$requested_type.pm";
    $class          = "lib::$requested_type";
    require $location;
    return $class->new(@_);
}
1;

[download]

Of course, with the 1st test, Repeat.pm is located into a 'Greet' subdirectory, and I rename it 'lib' before doing the 2nd test. Everything happens as if 'lib::' is badly interpreted because 'lib' may be a PERL reserved word ?

In reply to Design pattern factory : use lib issue on lib directory by CraigWalker

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