/usr/share/perl5/MooseX/AttributeHelpers/Trait/Number.pm is in libmoosex-attributehelpers-perl 0.23-1.
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 | package MooseX::AttributeHelpers::Trait::Number;
use Moose::Role;
our $VERSION = '0.23';
$VERSION = eval $VERSION;
our $AUTHORITY = 'cpan:STEVAN';
with 'MooseX::AttributeHelpers::Trait::Base';
sub helper_type { 'Num' }
# NOTE:
# we don't use the method provider for this
# module since many of the names of the provied
# methods would conflict with keywords
# - SL
has 'method_constructors' => (
is => 'ro',
isa => 'HashRef',
lazy => 1,
default => sub {
return +{
set => sub {
my ($attr, $reader, $writer) = @_;
return sub { $writer->($_[0], $_[1]) };
},
add => sub {
my ($attr, $reader, $writer) = @_;
return sub { $writer->($_[0], $reader->($_[0]) + $_[1]) };
},
sub => sub {
my ($attr, $reader, $writer) = @_;
return sub { $writer->($_[0], $reader->($_[0]) - $_[1]) };
},
mul => sub {
my ($attr, $reader, $writer) = @_;
return sub { $writer->($_[0], $reader->($_[0]) * $_[1]) };
},
div => sub {
my ($attr, $reader, $writer) = @_;
return sub { $writer->($_[0], $reader->($_[0]) / $_[1]) };
},
mod => sub {
my ($attr, $reader, $writer) = @_;
return sub { $writer->($_[0], $reader->($_[0]) % $_[1]) };
},
abs => sub {
my ($attr, $reader, $writer) = @_;
return sub { $writer->($_[0], abs($reader->($_[0])) ) };
},
}
}
);
no Moose::Role;
1;
=pod
=head1 NAME
MooseX::AttributeHelpers::Number - simple numeric attribute
=head1 SYNOPSIS
package Real;
use Moose;
use MooseX::AttributeHelpers;
has 'integer' => (
metaclass => 'Number',
is => 'ro',
isa => 'Int',
default => sub { 5 },
provides => {
set => 'set',
add => 'add',
sub => 'sub',
mul => 'mul',
div => 'div',
mod => 'mod',
abs => 'abs',
}
);
my $real = Real->new();
$real->add(5); # same as $real->integer($real->integer + 5);
$real->sub(2); # same as $real->integer($real->integer - 2);
=head1 DESCRIPTION
This provides a simple numeric attribute, which supports most of the
basic math operations.
=head1 METHODS
=over 4
=item B<meta>
=item B<helper_type>
=item B<method_constructors>
=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 ($value)>
Alternate way to set the value.
=item I<add ($value)>
Adds the current value of the attribute to C<$value>.
=item I<sub ($value)>
Subtracts the current value of the attribute to C<$value>.
=item I<mul ($value)>
Multiplies the current value of the attribute to C<$value>.
=item I<div ($value)>
Divides the current value of the attribute to C<$value>.
=item I<mod ($value)>
Modulus the current value of the attribute to C<$value>.
=item I<abs>
Sets the current value of the attribute to its absolute value.
=back
=head1 BUGS
All complex software has bugs lurking in it, and this module is no
exception. If you find a bug please either email me, or add the bug
to cpan-RT.
=head1 AUTHOR
Robert Boone
=head1 COPYRIGHT AND LICENSE
Copyright 2007-2009 by Infinity Interactive, Inc.
L<http://www.iinteractive.com>
This library is free software; you can redistribute it and/or modify
it under the same terms as Perl itself.
=cut
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