Sub::HandlesVia::HandlerLibrary::Counter(3pm) User Contributed Perl Documentation Sub::HandlesVia::HandlerLibrary::Counter(3pm)

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

  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',
      },
    );
  }

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

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

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

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

Arguments: Int.

Sets the counter to the given value.

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

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

Sub::HandlesVia.

Toby Inkster <tobyink@cpan.org>.

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.

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.

2023-04-09 perl v5.36.0