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package Data::Perl::Role::Counter; |
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$Data::Perl::Role::Counter::VERSION = '0.002011'; |
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# ABSTRACT: Wrapping class for a simple numeric counter. |
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use strictures 1; |
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use Role::Tiny; |
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sub new { bless \(my $n = $_[1]), $_[0] } |
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sub inc { ${$_[0]} += ($_[1] ? $_[1] : 1) } |
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sub dec { ${$_[0]} -= ($_[1] ? $_[1] : 1) } |
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sub reset { ${$_[0]} = 0 } |
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1; |
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=pod |
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=encoding UTF-8 |
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=head1 NAME |
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Data::Perl::Role::Counter - Wrapping class for a simple numeric counter. |
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=head1 VERSION |
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version 0.002011 |
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=head1 SYNOPSIS |
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use Data::Perl qw/counter/; |
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my $c = counter(4); |
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$c->inc; # $c == 5 |
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$c->reset; # $c == 0 |
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=head1 DESCRIPTION |
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This class provides a wrapper and methods for a simple numeric counter. |
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=head1 PROVIDED METHODS |
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=over 4 |
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=item B |
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Constructs a new Data::Perl::Collection::Counter object initialized with the passed |
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in value, and returns it. |
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=item B |
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Sets the counter to the specified value and returns the new value. |
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This method requires a single argument. |
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=item B |
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=item B |
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Increases the attribute value by the amount of the argument, or by 1 if no |
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argument is given. This method returns the new value. |
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This method accepts a single argument. |
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=item B |
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=item B |
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Decreases the attribute value by the amount of the argument, or by 1 if no |
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argument is given. This method returns the new value. |
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This method accepts a single argument. |
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=item B |
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Resets the value stored in this slot to its default value, and returns the new |
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value. |
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=back |
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=head1 SEE ALSO |
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=over 4 |
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=item * L |
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=item * L |
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=back |
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=head1 AUTHOR |
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Matthew Phillips |
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=head1 COPYRIGHT AND LICENSE |
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This software is copyright (c) 2020 by Matthew Phillips . |
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This is free software; you can redistribute it and/or modify it under |
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the same terms as the Perl 5 programming language system itself. |
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=cut |
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__END__ |