MooseX::ABCD - MooseX::ABC, but checking required methods on make_immutable
{
package Shape;
use Moose;
use MooseX::ABCD;
requires 'draw';
__PACKAGE__->meta->make_immutable;
}
{
package Circle;
use Moose;
extends 'Shape';
sub draw {
...;
}
__PACKAGE__->meta->make_immutable;
}
my $shape = Shape->new; # dies
my $circle = Circle->new; # succeeds
{
package Square;
use Moose;
extends 'Shape';
__PACKAGE__->meta->make_immutable;
# ^^^ dies, draw is unimplemented
}
What does ABCD stand for? Hmmm... maybe "abstract base classes deferred"? or "abstract base classes declare-compatible"? (This module works with MooseX::Declare, whereas MooseX::ABC does not!)
Anyway, whatever ABCD does or does not stand for, this is what MooseX::ABCD does: it works just like MooseX::ABC, the checks that derived classes implement all abstract methods happen when the class is made immutable, not when inheritance is set up.
Why? It works better with MooseX::Declare this way.
This module exports one function to your namespace:
requiresWorks like requires in Moose roles, but for classes.
Please report any bugs to http://rt.cpan.org/Dist/Display.html?Queue=MooseX-ABCD.
MooseX::ABC, MooseX::AbstractMethod.
Toby Inkster <tobyink@cpan.org>, though most of the code is stolen from Jesse Luehrs. (But don't blame him is something goes wrong. For that matter, don't blame me either - take a look at the disclaimer of warranties.)
This software is copyright (c) 2012-2013 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.
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.
