namespace::autoclean(3)
NAME
namespace::autoclean - Keep imports out of your namespace
VERSION
version 0.29
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
DESCRIPTION
When you import a function into a Perl package, it will naturally also
be available as a method.
The "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 namespace::clean, except it will clean
all imported functions, no matter if you imported them before or after
you "use"d the pragma. It will also not touch anything that looks like
a method.
If you're writing an exporter and you want to clean up after yourself
(and your peers), you can use the "-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),
);
}
WHAT IS AND ISN'T CLEANED
"namespace::autoclean" will leave behind anything that it deems a
method. For Moose classes, this the based on the "get_method_list"
method on from the Class::MOP::Class. For non-Moose classes, anything
defined within the package will be identified as a method. This should
match Moose's definition of a method. Additionally, the magic subs
installed by overload will not be cleaned.
PARAMETERS
-also => [ ITEM | REGEX | SUB, .. ]
-also => ITEM
-also => REGEX
-also => SUB
Sometimes you don't want to clean imports only, but also helper
functions you're using in your methods. The "-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 "-also"
switch also accepts a plain string:
use namespace::autoclean -also => 'some_function';
In some situations, you may wish for a more powerful cleaning solution.
The "-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 $_ =~ m/^hidden/ }, sub { uc($_) == $_ } ];
-except => [ ITEM | REGEX | SUB, .. ]
-except => ITEM
-except => REGEX
-except => SUB
This takes exactly the same options as "-also" except that anything
this matches will not be cleaned.
CAVEATS
When used with Moo classes, the heuristic used to check for methods
won't work correctly for methods from roles consumed at compile time.
package My::Class;
use Moo;
use namespace::autoclean;
# Bad, any consumed methods will be cleaned
BEGIN { with 'Some::Role' }
# Good, methods from role will be maintained
with 'Some::Role';
Additionally, method detection may not work properly in Mouse classes
in perls earlier than 5.10.
SEE ALSO
o namespace::clean(3)
o B::Hooks::EndOfScope(3)
o namespace::sweep(3)
o Sub::Exporter::ForMethods(3)
o Sub::Name(3)
o Sub::Install(3)
o Test::CleanNamespaces(3)
o Dist::Zilla::Plugin::Test::CleanNamespaces(3)
SUPPORT
Bugs may be submitted through the RT bug tracker
<https://rt.cpan.org/Public/Dist/Display.html?Name=namespace-autoclean>
(or bug-namespace-autoclean@rt.cpan.org <mailto:bug-namespace-
autoclean@rt.cpan.org>).
There is also a mailing list available for users of this distribution,
at <http://lists.perl.org/list/moose.html>.
There is also an irc channel available for users of this distribution,
at "#moose" on "irc.perl.org" <irc://irc.perl.org/#moose>.
AUTHOR
Florian Ragwitz <rafl@debian.org>
CONTRIBUTORS
o Karen Etheridge <ether@cpan.org>
o Graham Knop <haarg@haarg.org>
o Dave Rolsky <autarch@urth.org>
o Kent Fredric <kentfredric@gmail.com>
o Tomas Doran <bobtfish@bobtfish.net>
o Shawn M Moore <cpan@sartak.org>
o Felix Ostmann <sadrak@cpan.org>
o Chris Prather <chris@prather.org>
o Andrew Rodland <arodland@cpan.org>
COPYRIGHT AND LICENCE
This software is copyright (c) 2009 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.
perl v5.30.0 2019-08-24 namespace::autoclean(3)
namespace-autoclean 0.290.0 - Generated Fri Jul 24 09:42:36 CDT 2020