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.

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

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

 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.