MooseX::ABC - abstract base classes for Moose

version 0.05

  package Shape;
  use Moose;
  use MooseX::ABC;

  requires 'draw';

  package Circle;
  use Moose;
  extends 'Shape';

  sub draw {
      # stuff
  }

  my $shape = Shape->new; # dies
  my $circle = Circle->new; # succeeds

  package Square;
  use Moose;
  extends 'Shape'; # dies, since draw is unimplemented

This module adds basic abstract base class functionality to Moose. Doing use MooseX::ABC turns the using class into an abstract class - it cannot be instantiated. It also allows you to mark certain methods in the class as required, meaning that if a class inherits from this class without implementing that method, it will die at compile time. Abstract subclasses are exempt from this, however - if you extend a class with another class which uses MooseX::ABC, it will not be required to implement every required method (and it can also add more required methods of its own). Only concrete classes (classes which do not use MooseX::ABC) are required to implement all of their ancestors' required methods.

Takes a list of methods that classes inheriting from this one must implement. If a class inherits from this class without implementing each method listed here, an error will be thrown when compiling the class.

No known bugs.

Please report any bugs through RT: email bug-moosex-abc at rt.cpan.org, or browse to http://rt.cpan.org/NoAuth/ReportBug.html?Queue=MooseX-ABC.

• Moose
• Moose::Role

You can find this documentation for this module with the perldoc command.

    perldoc MooseX::ABC

You can also look for information at:

* AnnoCPAN: Annotated CPAN documentation

http://annocpan.org/dist/MooseX-ABC

* CPAN Ratings

http://cpanratings.perl.org/d/MooseX-ABC

* RT: CPAN's request tracker

http://rt.cpan.org/NoAuth/Bugs.html?Dist=MooseX-ABC

* Search CPAN

http://search.cpan.org/dist/MooseX-ABC

Jesse Luehrs <doy at tozt dot net>

This software is copyright (c) 2010 by Jesse Luehrs.

This is free software; you can redistribute it and/or modify it under the same terms as the Perl 5 programming language system itself.