Sub::HandlesVia::HandlerLibrary::Counter(3p)

NAME
Sub::HandlesVia::HandlerLibrary::Counter - library of counter-related methods

SYNOPSIS
  package My::Class {
    use Moo;
    use Sub::HandlesVia;
    use Types::Standard 'Int';
    has attr => (
      is => 'rwp',
      isa => Int,
      handles_via => 'Counter',
      handles => {
        'my_dec' => 'dec',
        'my_inc' => 'inc',
        'my_reset' => 'reset',
        'my_set' => 'set',
      },
    );
  }

DESCRIPTION
This is a library of methods for Sub::HandlesVia.

DELEGATABLE METHODS

  dec( $amount? )
Arguments: Optional[Int].

Decrements the counter by $amount, or by 1 if no value is given.

  my $object = My::Class->new( attr => 10 );
  $object->my_dec;
  $object->my_dec;
  say $object->attr; ## ==> 8
  $object->my_dec( 5 );
  say $object->attr; ## ==> 3

  inc( $amount? )
Arguments: Optional[Int].

Increments the counter by $amount, or by 1 if no value is given.

  my $object = My::Class->new( attr => 0 );
  $object->my_inc;
  $object->my_inc;
  say $object->attr; ## ==> 2
  $object->my_inc( 3 );
  say $object->attr; ## ==> 5

  reset()
Sets the counter to its default value, or 0 if it has no default.

  my $object = My::Class->new( attr => 10 );
  $object->my_reset;
  say $object->attr; ## ==> 0

  set( $value )
Arguments: Int.

Sets the counter to the given value.

  my $object = My::Class->new( attr => 0 );
  $object->my_set( 5 );
  say $object->attr; ## ==> 5

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) 2020, 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.