/usr/share/perl5/MooseX/AttributeHelpers/Trait/Counter.pm is in libmoosex-attributehelpers-perl 0.25-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 | package MooseX::AttributeHelpers::Trait::Counter;
use Moose::Role;
our $VERSION = '0.25';
use MooseX::AttributeHelpers::MethodProvider::Counter;
with 'MooseX::AttributeHelpers::Trait::Base';
has 'method_provider' => (
is => 'ro',
isa => 'ClassName',
predicate => 'has_method_provider',
default => 'MooseX::AttributeHelpers::MethodProvider::Counter',
);
sub helper_type { 'Num' }
before 'process_options_for_provides' => sub {
my ($self, $options, $name) = @_;
# Set some default attribute options here unless already defined
if ((my $type = $self->helper_type) && !exists $options->{isa}){
$options->{isa} = $type;
}
$options->{is} = 'ro' unless exists $options->{is};
$options->{default} = 0 unless exists $options->{default};
};
after 'check_provides_values' => sub {
my $self = shift;
my $provides = $self->provides;
unless (scalar keys %$provides) {
my $method_constructors = $self->method_constructors;
my $attr_name = $self->name;
foreach my $method (keys %$method_constructors) {
$provides->{$method} = ($method . '_' . $attr_name);
}
}
};
no Moose::Role;
1;
__END__
=pod
=encoding UTF-8
=head1 NAME
MooseX::AttributeHelpers::Trait::Counter - simple counter attribute
=head1 VERSION
version 0.25
=head1 SYNOPSIS
package MyHomePage;
use Moose;
use MooseX::AttributeHelpers;
has 'counter' => (
metaclass => 'Counter',
is => 'ro',
isa => 'Num',
default => sub { 0 },
provides => {
inc => 'inc_counter',
dec => 'dec_counter',
reset => 'reset_counter',
}
);
my $page = MyHomePage->new();
$page->inc_counter; # same as $page->counter($page->counter + 1);
$page->dec_counter; # same as $page->counter($page->counter - 1);
=head1 DESCRIPTION
This module provides a simple counter attribute, which can be
incremented and decremeneted.
If your attribute definition does not include any of I<is>, I<isa>,
I<default> or I<provides> but does use the C<Counter> metaclass,
then this module applies defaults as in the L</SYNOPSIS>
above. This allows for a very basic counter definition:
has 'foo' => (metaclass => 'Counter');
$obj->inc_foo;
=head1 METHODS
=over 4
=item B<meta>
=item B<method_provider>
=item B<has_method_provider>
=item B<helper_type>
=item B<process_options_for_provides>
Run before its superclass method.
=item B<check_provides_values>
Run after its superclass method.
=back
=head1 PROVIDED METHODS
It is important to note that all those methods do in place
modification of the value stored in the attribute.
=over 4
=item I<set>
Set the counter to the specified value.
=item I<inc>
Increments the value stored in this slot by 1. Providing an argument will
cause the counter to be increased by specified amount.
=item I<dec>
Decrements the value stored in this slot by 1. Providing an argument will
cause the counter to be increased by specified amount.
=item I<reset>
Resets the value stored in this slot to it's default value.
=back
=head1 SUPPORT
Bugs may be submitted through L<the RT bug tracker|https://rt.cpan.org/Public/Dist/Display.html?Name=MooseX-AttributeHelpers>
(or L<bug-MooseX-AttributeHelpers@rt.cpan.org|mailto:bug-MooseX-AttributeHelpers@rt.cpan.org>).
There is also a mailing list available for users of this distribution, at
L<http://lists.perl.org/list/moose.html>.
There is also an irc channel available for users of this distribution, at
L<C<#moose> on C<irc.perl.org>|irc://irc.perl.org/#moose>.
=head1 AUTHOR
Stevan Little <stevan@iinteractive.com>
=head1 COPYRIGHT AND LICENSE
This software is copyright (c) 2007 by Stevan Little and 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.
=cut
|