At the risk of losing the respect of many OO programmers ;) Why not use PadWalker to peek around other classes' lexical scopes. I.e. 
use strict;

package TestSuite;

sub new {
    my ($this, $motto) = @_;
    bless { info => $motto }, $this;
}

sub make_a_blob {
    my ($self) = @_;
    $self->{blob} = Blob->new;
    return $self;
}

sub print_blob {
    my ($self) = @_;
    $self->{blob}->print_stuff(); 
}


package Blob;
use PadWalker qw(peek_my);

sub new {        
    bless {}, shift;
}

sub print_stuff {
    my $callerObject = ${peek_my(1)->{'$self'}};
    print $callerObject->{info}."\n";
}


package main;

my $ts = new TestSuite("The holy grail!"); 
my $ts2 = new TestSuite("A rotten apple!"); 
$ts->make_a_blob();
$ts->print_blob();
$ts2->make_a_blob->print_blob;

__DATA__
The holy grail!
A rotten apple!

[download]
Update: Changed code a little but idea is still the same.

In reply to Re: Proper way to create 'globals' by bsdz
in thread Proper way to create 'globals' by zaven

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