NAME Mo - Micro Objects. Mo is less. SYNOPSIS package Less; use Mo; extends 'Nothing'; has 'something' => ( is => 'rw', default => sub { my $self = shift; $self->build_something; }, ); sub BUILD { my $self = shift; # enhance your object before it is returned by new() } DESCRIPTION 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. FEATURES This is what you get. Nothing Mo. "new" method Mo provides a "new" object constructor. You pass it a list of name/value pairs and it returns a new object. After object creation, it will call the "BUILD" method (if present) for all of its parents and itself. "extends" Mo exports the "extends" keyword, to declare your parent class. "Mo" itself is your default parent class, of course. Mo only supports single inheritance. If you need multiple inheritance or roles, you should upgrade to Moo. "has" Mo exports a "has" keyword, to generate accessors. These accessors always support both "get" and "set" operations. They allow the "default" and "builder" options. That's it. has 'name1'; has 'name2' => ( default => sub { 'Joe' } ); has 'name3' => ( builder => 'name_builder' ); "has" takes arguments after the name. Here is what it currently supports: default Must be a code reference. The object instance is passed in, and it should return the default value for this attribute. "default" is always called lazily. ie It is called when you try to get the value and it does not(exists()). builder Must be a method name. This method should return the default value for this attribute. "builder" is always called lazily. Any other arguments are ignored. This lets you switch from Moo to Mo and back, without having to change all your accessors. "strict" and "warnings" Mo turns on "use strict" and "use warnings" for you. Embeddable Mo is tiny. It is compressed into a single line. You can easily inline it in your code, should you want to do that. AUTHORS Ingy döt Net Damien 'dams' Krotkine COPYRIGHT AND LICENSE Copyright (c) 2011. 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