gistfile3.txt

[sweeks@sweeks-laptop treed-enum]$ perl -MLogger -E '$l = Logger->new(rgb=>"red"); say $l->rgb; Log->rawr'
red
lol ohai

Log.pm

use MooseX::Declare;
use feature ':5.10';
class Log {
    use Moose::Util::TypeConstraints;
    our $foo;
    BEGIN {
        enum 'RGB' => qw/red green blue/;
        $foo = "lol ohai";
    }
    use Logger;
    sub rawr {
        say $foo;
    }
}

Logger.pm

use MooseX::Declare;
class Logger {
    use Log;
    has 'rgb' => ( isa => 'RGB', is => 'rw' );
}