Jesse Luehrs > MooseX-ABC-0.06 > MooseX::ABC

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Module Version: 0.06   Source  

NAME ^

MooseX::ABC - abstract base classes for Moose

VERSION ^

version 0.06

SYNOPSIS ^

  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

DESCRIPTION ^

NOTE: This module is almost certainly a bad idea. You really want to just be using a role instead!

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.

FUNCTIONS ^

requires METHOD_NAMES

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.

SEE ALSO ^

Moose

Moose::Role

AUTHOR ^

Jesse Luehrs <doy at tozt dot net>

COPYRIGHT AND LICENSE ^

This software is copyright (c) 2012 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.

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