/usr/share/perl5/namespace/autoclean.pm is in libnamespace-autoclean-perl 0.13-1.
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 | use strict;
use warnings;
package namespace::autoclean;
BEGIN {
$namespace::autoclean::AUTHORITY = 'cpan:FLORA';
}
{
$namespace::autoclean::VERSION = '0.13';
}
# ABSTRACT: Keep imports out of your namespace
use Class::MOP 0.80;
use B::Hooks::EndOfScope;
use List::Util qw( first );
use namespace::clean 0.20;
sub import {
my ($class, %args) = @_;
my $subcast = sub {
my $i = shift;
return $i if ref $i eq 'CODE';
return sub { $_ =~ $i } if ref $i eq 'Regexp';
return sub { $_ eq $i };
};
my $runtest = sub {
my ($code, $method_name) = @_;
local $_ = $method_name;
return $code->();
};
my $cleanee = exists $args{-cleanee} ? $args{-cleanee} : scalar caller;
my @also = map { $subcast->($_) } (
exists $args{-also}
? (ref $args{-also} eq 'ARRAY' ? @{ $args{-also} } : $args{-also})
: ()
);
on_scope_end {
my $meta = Class::MOP::Class->initialize($cleanee);
my %methods = map { ($_ => 1) } $meta->get_method_list;
$methods{meta} = 1 if $meta->isa('Moose::Meta::Role') && Moose->VERSION < 0.90;
my %extra = ();
for my $method (keys %methods) {
next if exists $extra{$_};
next unless first { $runtest->($_, $method) } @also;
$extra{ $method } = 1;
}
my @symbols = keys %{ $meta->get_all_package_symbols('CODE') };
namespace::clean->clean_subroutines($cleanee, keys %extra, grep { !$methods{$_} } @symbols);
};
}
1;
__END__
=pod
=encoding utf-8
=head1 NAME
namespace::autoclean - Keep imports out of your namespace
=head1 SYNOPSIS
package Foo;
use namespace::autoclean;
use Some::Package qw/imported_function/;
sub bar { imported_function('stuff') }
# later on:
Foo->bar; # works
Foo->imported_function; # will fail. imported_function got cleaned after compilation
=head1 DESCRIPTION
When you import a function into a Perl package, it will naturally also be
available as a method.
The C<namespace::autoclean> pragma will remove all imported symbols at the end
of the current package's compile cycle. Functions called in the package itself
will still be bound by their name, but they won't show up as methods on your
class or instances.
This module is very similar to L<namespace::clean|namespace::clean>, except it
will clean all imported functions, no matter if you imported them before or
after you C<use>d the pragma. It will also not touch anything that looks like a
method, according to C<Class::MOP::Class::get_method_list>.
If you're writing an exporter and you want to clean up after yourself (and your
peers), you can use the C<-cleanee> switch to specify what package to clean:
package My::MooseX::namespace::autoclean;
use strict;
use namespace::autoclean (); # no cleanup, just load
sub import {
namespace::autoclean->import(
-cleanee => scalar(caller),
);
}
=head1 PARAMETERS
=head2 -also => [ ITEM | REGEX | SUB, .. ]
=head2 -also => ITEM
=head2 -also => REGEX
=head2 -also => SUB
Sometimes you don't want to clean imports only, but also helper functions
you're using in your methods. The C<-also> switch can be used to declare a list
of functions that should be removed additional to any imports:
use namespace::autoclean -also => ['some_function', 'another_function'];
If only one function needs to be additionally cleaned the C<-also> switch also
accepts a plain string:
use namespace::autoclean -also => 'some_function';
In some situations, you may wish for a more I<powerful> cleaning solution.
The C<-also> switch can take a Regex or a CodeRef to match against local
function names to clean.
use namespace::autoclean -also => qr/^_/
use namespace::autoclean -also => sub { $_ =~ m{^_} };
use namespace::autoclean -also => [qr/^_/ , qr/^hidden_/ ];
use namespace::autoclean -also => [sub { $_ =~ m/^_/ or $_ =~ m/^hidden/ }, sub { uc($_) == $_ } ];
=head1 SEE ALSO
L<namespace::clean>
L<Class::MOP>
L<B::Hooks::EndOfScope>
=head1 AUTHOR
Florian Ragwitz <rafl@debian.org>
=head1 COPYRIGHT AND LICENSE
This software is copyright (c) 2011 by Florian Ragwitz.
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
|