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Mo - Micro Objects. Mo is less.
package Less; use Mo; extends 'Nothing';
has something => ();
use Mo. Mo is less. Much less.
Moose is huge. Moose led to Mouse led to Moo led to Mo. M is nothing. Mo is more. Not much.
When Moo is more than you need, drop an 'o' and get some Mo.
To get just a little Mo from Mo, use Mo Features below.
This is what you get. Nothing Mo.
new
methodnew
object constructor. You pass it a list of name/value
pairs and it returns a new object.
Constructor will not call BUILD methods. This is available using the the Mo::build manpage feature.
extends
extends
keyword, to declare your parent class. Mo::Object
itself is your default parent class.
Mo only supports single inheritance. If you need multiple inheritance or roles, you should upgrade to Moo.
has
has
keyword, to generate accessors.
These accessors always support both get
and set
operations. That's it.
has name => (); has thing => (foo => 'bar'); # arguments silently ignored
All arguments passed to has
are ignored. This makes it easier to switch
between Mo and Moo, without having to change all your accessors.
strict
and warnings
use strict
and use warnings
for you.
Mo is the bare minimum needed for Perl OO. Many times you'll want just a couple more features. Don't worry. Mo's got you covered:
use Mo qw'build default builder coerce is required'; has name1 => ( default => sub { 'Joe' } ); has name2 => ( builder => 'name_builder' ); has name3 => ( coerce => sub {$_[0]} ); has name4 => ( is => 'ro' ); has name4 => ( required => 1 ); sub BUILD { my $self = shift; ... }
Mo simply loads the feature classes the Mo::build manpage, the Mo::default manpage,
the Mo::builder manpage, the Mo::coerce manpage, the Mo::is manpage and the Mo::required manpage.
The first one supports BUILD constructing and the other three
add their magics to has
. A the Mo::Feature manpage module can enhance new
,
extends
and has
, and also add new export subs, or remove existing ones.
Features can also be combined for a single accessor.
See the Mo::Features manpage for a list of all the features and for an explanation of
the Feature API..
Ingy döt Net <ingy@cpan.org>
Damien 'dams' Krotkine <dams@cpan.org>
Matt S. Trout (mst) <mst@shadowcat.co.uk>
Christian Walde <walde.christian@googlemail.com>
Alessandro Ranellucci (aar/alexrj) <aar@cpan.org>
Carlos Lima (priodev) <carlos@cpan.org>
Copyright (c) 2011-2013. Ingy döt Net.
This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself.
See http://www.perl.com/perl/misc/Artistic.html
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