1Resurrector(3)        User Contributed Perl Documentation       Resurrector(3)
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NAME

6       Log::Log4perl::Resurrector - Dark Magic to resurrect hidden L4p
7       statements
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DESCRIPTION

10       Loading "use Log::Log4perl::Resurrector" causes subsequently loaded
11       modules to have their hidden
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13           ###l4p use Log::Log4perl qw(:easy);
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15           ###l4p DEBUG(...)
16           ###l4p INFO(...)
17           ...
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19       statements uncommented and therefore 'resurrected', i.e. activated.
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21       This allows for a module "Foobar.pm" to be written with Log4perl
22       statements commented out and running at full speed in normal mode.
23       When loaded via
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25           use Foobar;
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27       all hidden Log4perl statements will be ignored.
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29       However, if a script loads the module "Foobar" after loading
30       "Log::Log4perl::Resurrector", as in
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32           use Log::Log4perl::Resurrector;
33           use Foobar;
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35       then "Log::Log4perl::Resurrector" will have put a source filter in
36       place that will extract all hidden Log4perl statements in "Foobar"
37       before "Foobar" actually gets loaded.
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39       Therefore, "Foobar" will then behave as if the
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41           ###l4p use Log::Log4perl qw(:easy);
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43           ###l4p DEBUG(...)
44           ###l4p INFO(...)
45           ...
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47       statements were actually written like
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49           use Log::Log4perl qw(:easy);
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51           DEBUG(...)
52           INFO(...)
53           ...
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55       and the module "Foobar" will indeed be Log4perl-enabled. Whether any
56       activated Log4perl statement will actually trigger log messages, is up
57       to the Log4perl configuration, of course.
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59       There's a startup cost to using "Log::Log4perl::Resurrector" (all
60       subsequently loaded modules are examined) but once the compilation
61       phase has finished, the perl program will run at full speed.
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63       Some of the techniques used in this module have been stolen from the
64       "Acme::Incorporated" CPAN module, written by chromatic. Long live CPAN!
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LICENSE

67       Copyright 2002-2013 by Mike Schilli <m@perlmeister.com> and Kevin Goess
68       <cpan@goess.org>.
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70       This library is free software; you can redistribute it and/or modify it
71       under the same terms as Perl itself.
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AUTHOR

74       Please contribute patches to the project on Github:
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76           http://github.com/mschilli/log4perl
77
78       Send bug reports or requests for enhancements to the authors via our
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80       MAILING LIST (questions, bug reports, suggestions/patches):
81       log4perl-devel@lists.sourceforge.net
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83       Authors (please contact them via the list above, not directly): Mike
84       Schilli <m@perlmeister.com>, Kevin Goess <cpan@goess.org>
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86       Contributors (in alphabetical order): Ateeq Altaf, Cory Bennett, Jens
87       Berthold, Jeremy Bopp, Hutton Davidson, Chris R. Donnelly, Matisse
88       Enzer, Hugh Esco, Anthony Foiani, James FitzGibbon, Carl Franks, Dennis
89       Gregorovic, Andy Grundman, Paul Harrington, Alexander Hartmaier  David
90       Hull, Robert Jacobson, Jason Kohles, Jeff Macdonald, Markus Peter,
91       Brett Rann, Peter Rabbitson, Erik Selberg, Aaron Straup Cope, Lars
92       Thegler, David Viner, Mac Yang.
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96perl v5.34.0                      2021-07-22                    Resurrector(3)
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