NAME MooseX::DeclareX::Plugin::abstract - shiny syntax for MooseX::ABCD SYNOPSIS class Shape is abstract { requires 'draw'; } class Circle extends Shape { method draw { ... } } class Square extends Shape { # does not implement 'draw' } # dies my $shape = Shape->new; # dies my $circle = Circle->new; # succeeds DESCRIPTION This distribution adds two new plugins to MooseX::DeclareX. "is abstract" Declares that a class cannot be instantiated. Also allows the standard Moose "requires" function to work within classes (it normally only works within roles). When a class requires a method, then subclasses are supposed to provide that method. If the subclass itself is also abstract, then it doesn't need to provide the required methods. (There's also a little cheat: classes which are mutable may extend abstract classes without implementing required methods. You should not do this though.) "is concrete" A counterpart to "is abstract". Currently, this is a no-op, but in future it might enable some checks related to abstract classes. BUGS Please report any bugs to . SEE ALSO MooseX::DeclareX, MooseX::ABCD. AUTHOR Toby Inkster . COPYRIGHT AND LICENCE This software is copyright (c) 2012 by Toby Inkster. This is free software; you can redistribute it and/or modify it under the same terms as the Perl 5 programming language system itself. DISCLAIMER OF WARRANTIES THIS PACKAGE IS PROVIDED "AS IS" AND WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.