oracular (3) Sub::HandlesVia::Declare.3pm.gz

NAME

       Sub::HandlesVia::Declare - declare delegations at compile-time

SYNOPSIS

        use Sub::HandlesVia::Declare( $attr, $via => %delegations );

       This is roughly equivalent to the following:

        use Sub::HandlesVia qw(delegations);

        BEGIN {
          delegations(
            attribute    => $attr,
            handles_via  => $via,
            handles      => \%delegations,
          );
        };

       Except it doesn't import the "delegations" function into your namespace.

DESCRIPTION

       Useful for Object::Pad and kind of nice for Class::Tiny. Basically any class builder than does its stuff
       at compile time.

   Object::Pad
        use Object::Pad;

        class Kitchen {
          has @foods;
          use Sub::HandlesVia::Declare '@foods', Array => (
            all_foods => 'all',
            add_food  => 'push',
          );
        }

       If an attribute begins with a '@' or '%', $via can be omitted.

        use Object::Pad;

        class Kitchen {
          has @foods;
          use Sub::HandlesVia::Declare '@foods', (
            all_foods => 'all',
            add_food  => 'push',
          );
        }

   Class::Tiny
        package Kitchen;
        use Class::Tiny {
          foods  => sub { [] },
          drinks => sub { [ 'water' ] },
        };
        use Sub::HandlesVia::Declare 'foods', Array => (
          all_foods  => 'all',
          add_food   => 'push',
        );
        use Sub::HandlesVia::Declare 'drinks', Array => (
          all_drinks => 'all',
          add_drink  => 'push',
        );

BUGS

       Please report any bugs to <https://github.com/tobyink/p5-sub-handlesvia/issues>.

SEE ALSO

       Sub::HandlesVia.

AUTHOR

       Toby Inkster <tobyink@cpan.org>.

COPYRIGHT AND LICENCE

       This software is copyright (c) 2022 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.