I want to recursively access class variable in a series of classes, like this:

use strict;

package Base;
our %types = qw/BASE_TYPE Some::Class/;
sub get_type {}

package Foo;
our @ISA = qw/Base/;
our %types = qw/FOO_TYPE Another::Class/;

package Bar;
our @ISA = qw/Base/;
our %types = qw/BAR_TYPE Yet::Another::Class/;

# what I want:

# get: BASE_TYPE => Some::Class,
#      FOO_TYPE  => Another::Class
my %foo_type = Foo->get_type();

# get: BASE_TYPE => Some::Class,
#      BAR_TYPE  => Yet::Another::Class
my %bar_type = Bar->get_type();

[download]

What I actually want is to simulate the sugar in actionscript's EventDispatcher, which can register type string with classes of event object, and derived dispatcher own all registered things from its parents recursively.

In reply to How to implement such kind of magic? by llancet

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