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=head1 NAME
Sub::HandlesVia::HandlerLibrary::Counter - library of counter-related methods
=head1 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',
},
);
}
=head1 DESCRIPTION
This is a library of methods for L<Sub::HandlesVia>.
=head1 DELEGATABLE METHODS
=head2 C<< dec( $amount? ) >>
Arguments: B<< Optional[Int] >>.
Decrements the counter by C<< $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
=head2 C<< inc( $amount? ) >>
Arguments: B<< Optional[Int] >>.
Increments the counter by C<< $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
=head2 C<< 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
=head2 C<< set( $value ) >>
Arguments: B<< Int >>.
Sets the counter to the given value.
my $object = My::Class->new( attr => 0 );
$object->my_set( 5 );
say $object->attr; ## ==> 5
=head1 BUGS
Please report any bugs to
L<https://github.com/tobyink/p5-sub-handlesvia/issues>.
=head1 SEE ALSO
L<Sub::HandlesVia>.
=head1 AUTHOR
Toby Inkster E<lt>tobyink@cpan.orgE<gt>.
=head1 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.
=head1 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.
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