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.\"
.IX Title "Sub::HandlesVia::HandlerLibrary::Counter 3pm"
.TH Sub::HandlesVia::HandlerLibrary::Counter 3pm "2023-04-09" "perl v5.36.0" "User Contributed Perl Documentation"
.\" For nroff, turn off justification.  Always turn off hyphenation; it makes
.\" way too many mistakes in technical documents.
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.nh
.SH "NAME"
Sub::HandlesVia::HandlerLibrary::Counter \- library of counter\-related methods
.SH "SYNOPSIS"
.IX Header "SYNOPSIS"
.Vb 10
\&  package My::Class {
\&    use Moo;
\&    use Sub::HandlesVia;
\&    use Types::Standard \*(AqInt\*(Aq;
\&    has attr => (
\&      is => \*(Aqrwp\*(Aq,
\&      isa => Int,
\&      handles_via => \*(AqCounter\*(Aq,
\&      handles => {
\&        \*(Aqmy_dec\*(Aq => \*(Aqdec\*(Aq,
\&        \*(Aqmy_inc\*(Aq => \*(Aqinc\*(Aq,
\&        \*(Aqmy_reset\*(Aq => \*(Aqreset\*(Aq,
\&        \*(Aqmy_set\*(Aq => \*(Aqset\*(Aq,
\&      },
\&    );
\&  }
.Ve
.SH "DESCRIPTION"
.IX Header "DESCRIPTION"
This is a library of methods for Sub::HandlesVia.
.SH "DELEGATABLE METHODS"
.IX Header "DELEGATABLE METHODS"
.ie n .SS """dec( $amount? )"""
.el .SS "\f(CWdec( $amount? )\fP"
.IX Subsection "dec( $amount? )"
Arguments: \fBOptional[Int]\fR.
.PP
Decrements the counter by \f(CW$amount\fR, or by 1 if no value is given.
.PP
.Vb 6
\&  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
.Ve
.ie n .SS """inc( $amount? )"""
.el .SS "\f(CWinc( $amount? )\fP"
.IX Subsection "inc( $amount? )"
Arguments: \fBOptional[Int]\fR.
.PP
Increments the counter by \f(CW$amount\fR, or by 1 if no value is given.
.PP
.Vb 6
\&  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
.Ve
.ie n .SS """reset()"""
.el .SS "\f(CWreset()\fP"
.IX Subsection "reset()"
Sets the counter to its default value, or 0 if it has no default.
.PP
.Vb 3
\&  my $object = My::Class\->new( attr => 10 );
\&  $object\->my_reset;
\&  say $object\->attr; ## ==> 0
.Ve
.ie n .SS """set( $value )"""
.el .SS "\f(CWset( $value )\fP"
.IX Subsection "set( $value )"
Arguments: \fBInt\fR.
.PP
Sets the counter to the given value.
.PP
.Vb 3
\&  my $object = My::Class\->new( attr => 0 );
\&  $object\->my_set( 5 );
\&  say $object\->attr; ## ==> 5
.Ve
.SH "BUGS"
.IX Header "BUGS"
Please report any bugs to
<https://github.com/tobyink/p5\-sub\-handlesvia/issues>.
.SH "SEE ALSO"
.IX Header "SEE ALSO"
Sub::HandlesVia.
.SH "AUTHOR"
.IX Header "AUTHOR"
Toby Inkster <tobyink@cpan.org>.
.SH "COPYRIGHT AND LICENCE"
.IX Header "COPYRIGHT AND LICENCE"
This software is copyright (c) 2020, 2022 by Toby Inkster.
.PP
This is free software; you can redistribute it and/or modify it under
the same terms as the Perl 5 programming language system itself.
.SH "DISCLAIMER OF WARRANTIES"
.IX Header "DISCLAIMER OF WARRANTIES"
\&\s-1THIS PACKAGE IS PROVIDED \*(L"AS IS\*(R" AND WITHOUT ANY EXPRESS OR IMPLIED
WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.\s0