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Package::DeprecationManager(3) User Contributed Perl Documentation Package::DeprecationManager(3)

       Package::DeprecationManager - Manage deprecation warnings for your distribution

       version 0.13

	 package My::Class;

	 use Package::DeprecationManager -deprecations => {
	     'My::Class::foo' => '0.02',
	     'My::Class::bar' => '0.05',
	     'feature-X'      => '0.07',

	 sub foo {
	     deprecated( 'Do not call foo!' );


	 sub bar {


	 sub baz {
	     my %args = @_;

	     if ( $args{foo} ) {
		     message => ...,
		     feature => 'feature-X',

	 package Other::Class;

	 use My::Class -api_version => '0.04';

	 My::Class->new()->foo(); # warns
	 My::Class->new()->bar(); # does not warn
	 My::Class->new()->bar(); # does not warn again

       This module allows you to manage a set of deprecations for one or more modules.

       When you import "Package::DeprecationManager", you must provide a set of "-deprecations"
       as a hash ref. The keys are "feature" names, and the values are the version when that
       feature was deprecated.

       In many cases, you can simply use the fully qualified name of a subroutine or method as
       the feature name. This works for cases where the whole subroutine is deprecated. However,
       the feature names can be any string. This is useful if you don't want to deprecate an
       entire subroutine, just a certain usage.

       You can also provide an optional array reference in the "-ignore" parameter.

       The values to be ignored can be package names or regular expressions (made with "qr//").
       Use this to ignore packages in your distribution that can appear on the call stack when a
       deprecated feature is used.

       As part of the import process, "Package::DeprecationManager" will export two subroutines
       into its caller. It provides an "import()" sub for the caller and a "deprecated()" sub.

       The "import()" sub allows callers of your class to specify an "-api_version" parameter. If
       this is supplied, then deprecation warnings are only issued for deprecations for api
       versions earlier than the one specified.

       You must call the "deprecated()" sub in each deprecated subroutine. When called, it will
       issue a warning using "Carp::cluck()".

       The "deprecated()" sub can be called in several ways. If you do not pass any arguments, it
       will generate an appropriate warning message. If you pass a single argument, this is used
       as the warning message.

       Finally, you can call it with named arguments. Currently, the only allowed names are
       "message" and "feature". The "feature" argument should correspond to the feature name
       passed in the "-deprecations" hash.

       If you don't explicitly specify a feature, the "deprecated()" sub uses "caller()" to
       identify its caller, using its fully qualified subroutine name.

       A given deprecation warning is only issued once for a given package. This module tracks
       this based on both the feature name and the error message itself. This means that if you
       provide several different error messages for the same feature, all of those errors will

       Please report any bugs or feature requests to
       "bug-package-deprecationmanager@rt.cpan.org", or through the web interface at
       <http://rt.cpan.org>.  I will be notified, and then you'll automatically be notified of
       progress on your bug as I make changes.

       If you'd like to thank me for the work I've done on this module, please consider making a
       "donation" to me via PayPal. I spend a lot of free time creating free software, and would
       appreciate any support you'd care to offer.

       Please note that I am not suggesting that you must do this in order for me to continue
       working on this particular software. I will continue to do so, inasmuch as I have in the
       past, for as long as it interests me.

       Similarly, a donation made in this way will probably not make me work on this software
       much more, unless I get so many donations that I can consider working on free software
       full time, which seems unlikely at best.

       To donate, log into PayPal and send money to autarch@urth.org or use the button on this
       page: <http://www.urth.org/~autarch/fs-donation.html>

       The idea for this functionality and some of its implementation was originally created as
       Class::MOP::Deprecated by Goro Fuji.

       Dave Rolsky <autarch@urth.org>

       This software is Copyright (c) 2012 by Dave Rolsky.

       This is free software, licensed under:

	 The Artistic License 2.0 (GPL Compatible)

perl v5.16.3				    2012-03-09		   Package::DeprecationManager(3)
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