1namespace::autoclean(3)User Contributed Perl Documentationnamespace::autoclean(3)
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NAME

6       namespace::autoclean - Keep imports out of your namespace
7

VERSION

9       version 0.29
10

SYNOPSIS

12           package Foo;
13           use namespace::autoclean;
14           use Some::Package qw/imported_function/;
15
16           sub bar { imported_function('stuff') }
17
18           # later on:
19           Foo->bar;               # works
20           Foo->imported_function; # will fail. imported_function got cleaned after compilation
21

DESCRIPTION

23       When you import a function into a Perl package, it will naturally also
24       be available as a method.
25
26       The "namespace::autoclean" pragma will remove all imported symbols at
27       the end of the current package's compile cycle. Functions called in the
28       package itself will still be bound by their name, but they won't show
29       up as methods on your class or instances.
30
31       This module is very similar to namespace::clean, except it will clean
32       all imported functions, no matter if you imported them before or after
33       you "use"d the pragma. It will also not touch anything that looks like
34       a method.
35
36       If you're writing an exporter and you want to clean up after yourself
37       (and your peers), you can use the "-cleanee" switch to specify what
38       package to clean:
39
40         package My::MooseX::namespace::autoclean;
41         use strict;
42
43         use namespace::autoclean (); # no cleanup, just load
44
45         sub import {
46             namespace::autoclean->import(
47               -cleanee => scalar(caller),
48             );
49         }
50

WHAT IS AND ISN'T CLEANED

52       "namespace::autoclean" will leave behind anything that it deems a
53       method.  For Moose classes, this the based on the "get_method_list"
54       method on from the Class::MOP::Class.  For non-Moose classes, anything
55       defined within the package will be identified as a method.  This should
56       match Moose's definition of a method.  Additionally, the magic subs
57       installed by overload will not be cleaned.
58

PARAMETERS

60   -also => [ ITEM | REGEX | SUB, .. ]
61   -also => ITEM
62   -also => REGEX
63   -also => SUB
64       Sometimes you don't want to clean imports only, but also helper
65       functions you're using in your methods. The "-also" switch can be used
66       to declare a list of functions that should be removed additional to any
67       imports:
68
69           use namespace::autoclean -also => ['some_function', 'another_function'];
70
71       If only one function needs to be additionally cleaned the "-also"
72       switch also accepts a plain string:
73
74           use namespace::autoclean -also => 'some_function';
75
76       In some situations, you may wish for a more powerful cleaning solution.
77
78       The "-also" switch can take a Regex or a CodeRef to match against local
79       function names to clean.
80
81           use namespace::autoclean -also => qr/^_/
82
83           use namespace::autoclean -also => sub { $_ =~ m{^_} };
84
85           use namespace::autoclean -also => [qr/^_/ , qr/^hidden_/ ];
86
87           use namespace::autoclean -also => [sub { $_ =~ m/^_/ or $_ =~ m/^hidden/ }, sub { uc($_) == $_ } ];
88
89   -except => [ ITEM | REGEX | SUB, .. ]
90   -except => ITEM
91   -except => REGEX
92   -except => SUB
93       This takes exactly the same options as "-also" except that anything
94       this matches will not be cleaned.
95

CAVEATS

97       When used with Moo classes, the heuristic used to check for methods
98       won't work correctly for methods from roles consumed at compile time.
99
100         package My::Class;
101         use Moo;
102         use namespace::autoclean;
103
104         # Bad, any consumed methods will be cleaned
105         BEGIN { with 'Some::Role' }
106
107         # Good, methods from role will be maintained
108         with 'Some::Role';
109
110       Additionally, method detection may not work properly in Mouse classes
111       in perls earlier than 5.10.
112

SEE ALSO

114       •   namespace::clean
115
116       •   B::Hooks::EndOfScope
117
118       •   namespace::sweep
119
120       •   Sub::Exporter::ForMethods
121
122       •   Sub::Name
123
124       •   Sub::Install
125
126       •   Test::CleanNamespaces
127
128       •   Dist::Zilla::Plugin::Test::CleanNamespaces
129

SUPPORT

131       Bugs may be submitted through the RT bug tracker
132       <https://rt.cpan.org/Public/Dist/Display.html?Name=namespace-autoclean>
133       (or bug-namespace-autoclean@rt.cpan.org <mailto:bug-namespace-
134       autoclean@rt.cpan.org>).
135
136       There is also a mailing list available for users of this distribution,
137       at <http://lists.perl.org/list/moose.html>.
138
139       There is also an irc channel available for users of this distribution,
140       at "#moose" on "irc.perl.org" <irc://irc.perl.org/#moose>.
141

AUTHOR

143       Florian Ragwitz <rafl@debian.org>
144

CONTRIBUTORS

146       •   Karen Etheridge <ether@cpan.org>
147
148       •   Graham Knop <haarg@haarg.org>
149
150       •   Dave Rolsky <autarch@urth.org>
151
152       •   Kent Fredric <kentfredric@gmail.com>
153
154       •   Tomas Doran <bobtfish@bobtfish.net>
155
156       •   Shawn M Moore <cpan@sartak.org>
157
158       •   Felix Ostmann <sadrak@cpan.org>
159
160       •   Chris Prather <chris@prather.org>
161
162       •   Andrew Rodland <arodland@cpan.org>
163

165       This software is copyright (c) 2009 by Florian Ragwitz.
166
167       This is free software; you can redistribute it and/or modify it under
168       the same terms as the Perl 5 programming language system itself.
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172perl v5.32.1                      2021-01-27           namespace::autoclean(3)
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