MooseX::ABC - abstract base classes for Moose
version 0.06
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
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.
use MooseX::ABC
MooseX::ABC
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.
Moose
Moose::Role
Jesse Luehrs <doy at tozt dot net>
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.
To install MooseX::ABC, copy and paste the appropriate command in to your terminal.
cpanm
cpanm MooseX::ABC
CPAN shell
perl -MCPAN -e shell install MooseX::ABC
For more information on module installation, please visit the detailed CPAN module installation guide.