Moose::Meta::Attribute::Native::Trait::Counter − Helper trait for Int attributes which represent counters
version 2.2206
package
MyHomePage;
use Moose;
has 'counter' => (
traits => ['Counter'],
is => 'ro',
isa => 'Num',
default => 0,
handles => {
inc_counter => 'inc',
dec_counter => 'dec',
reset_counter => 'reset',
},
);
my $page = MyHomePage−>new();
$page−>inc_counter; # same as
$page−>counter( $page−>counter + 1 );
$page−>dec_counter; # same as
$page−>counter( $page−>counter − 1
);
my $count_by_twos = 2;
$page−>inc_counter($count_by_twos);
This trait provides native delegation methods for counters. A counter can be any sort of number (integer or not). The delegation methods allow you to increment, decrement, or reset the value.
If you don’t provide an "isa" value for your attribute, it will default to "Num".
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set($value) |
Sets the counter to the specified value and returns the new value.
This method requires a single argument.
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inc |
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inc($arg) |
Increases the attribute value by the amount of the argument, or by 1 if no argument is given. This method returns the new value.
This method accepts a single argument.
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dec |
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dec($arg) |
Decreases the attribute value by the amount of the argument, or by 1 if no argument is given. This method returns the new value.
This method accepts a single argument.
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reset |
Resets the value stored in this slot to its default value, and returns the new value.
See "BUGS" in Moose for details on reporting bugs.
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Stevan Little <[email protected]> |
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Dave Rolsky <[email protected]> |
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Jesse Luehrs <[email protected]> |
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Shawn M Moore <[email protected]> |
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×××× ×§××’×× (Yuval Kogman) <[email protected]> |
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Karen Etheridge <[email protected]> |
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Florian Ragwitz <[email protected]> |
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Hans Dieter Pearcey <[email protected]> |
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Chris Prather <[email protected]> |
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Matt S Trout <[email protected]> |
This software is copyright (c) 2006 by Infinity Interactive, Inc.
This is free software; you can redistribute it and/or modify it under the same terms as the Perl 5 programming language system itself.