Log::Log4perl::Resurrector(3pm) - phpMan

Resurrector(3)                 User Contributed Perl Documentation                 Resurrector(3)



NAME
       Log::Log4perl::Resurrector - Dark Magic to resurrect hidden L4p statements

DESCRIPTION
       Loading "use Log::Log4perl::Resurrector" causes subsequently loaded modules to have their
       hidden

           ###l4p use Log::Log4perl qw(:easy);

           ###l4p DEBUG(...)
           ###l4p INFO(...)
           ...

       statements uncommented and therefore 'resurrected', i.e. activated.

       This allows for a module "Foobar.pm" to be written with Log4perl statements commented out
       and running at full speed in normal mode.  When loaded via

           use Foobar;

       all hidden Log4perl statements will be ignored.

       However, if a script loads the module "Foobar" after loading "Log::Log4perl::Resurrector",
       as in

           use Log::Log4perl::Resurrector;
           use Foobar;

       then "Log::Log4perl::Resurrector" will have put a source filter in place that will extract
       all hidden Log4perl statements in "Foobar" before "Foobar" actually gets loaded.

       Therefore, "Foobar" will then behave as if the

           ###l4p use Log::Log4perl qw(:easy);

           ###l4p DEBUG(...)
           ###l4p INFO(...)
           ...

       statements were actually written like

           use Log::Log4perl qw(:easy);

           DEBUG(...)
           INFO(...)
           ...

       and the module "Foobar" will indeed be Log4perl-enabled. Whether any activated Log4perl
       statement will actually trigger log messages, is up to the Log4perl configuration, of
       course.

       There's a startup cost to using "Log::Log4perl::Resurrector" (all subsequently loaded
       modules are examined) but once the compilation phase has finished, the perl program will
       run at full speed.

       Some of the techniques used in this module have been stolen from the "Acme::Incorporated"
       CPAN module, written by chromatic. Long live CPAN!

LICENSE
       Copyright 2002-2013 by Mike Schilli <m AT perlmeister.com> and Kevin Goess <cpan AT goess.org>.

       This library is free software; you can redistribute it and/or modify it under the same
       terms as Perl itself.

AUTHOR
       Please contribute patches to the project on Github:

           http://github.com/mschilli/log4perl

       Send bug reports or requests for enhancements to the authors via our

       MAILING LIST (questions, bug reports, suggestions/patches):
       log4perl-devel AT lists.net

       Authors (please contact them via the list above, not directly): Mike Schilli
       <m AT perlmeister.com>, Kevin Goess <cpan AT goess.org>

       Contributors (in alphabetical order): Ateeq Altaf, Cory Bennett, Jens Berthold, Jeremy
       Bopp, Hutton Davidson, Chris R. Donnelly, Matisse Enzer, Hugh Esco, Anthony Foiani, James
       FitzGibbon, Carl Franks, Dennis Gregorovic, Andy Grundman, Paul Harrington, Alexander
       Hartmaier  David Hull, Robert Jacobson, Jason Kohles, Jeff Macdonald, Markus Peter, Brett
       Rann, Peter Rabbitson, Erik Selberg, Aaron Straup Cope, Lars Thegler, David Viner, Mac
       Yang.



perl v5.16.3                                2013-07-26                             Resurrector(3)

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