Devel::TraceUse

Show the modules your program loads, recursively.

An apparently simple program may load a lot of modules. That's useful, but sometimes you may wonder exactly which part of your program loads which module.

Devel::TraceUse can analyze a program to see which part used which module. I recommend using it from the command line:

$ perl -d:TraceUse your_program.pl

This will display a tree of the modules ultimately used to run your program. (It also runs your program with only a little startup cost all the way through to the end.)

Modules used from your_program.pl: Test::MockObject::Extends, line 6 (0.000514) Test::MockObject, line 6 (0.000408) Scalar::Util, line 9 (0.000521) List::Util, line 12 (0.000393) XSLoader, line 24 (0.000396) UNIVERSAL::isa, line 10 (0.000436) UNIVERSAL, line 8 (0.000247) UNIVERSAL::can, line 11 (0.000428) Test::Builder, line 13 (0.000413) Devel::Peek, line 8 (0.000693)

INSTALLATION

To install this module, run the following commands:

$ perl Build.PL $ perl ./Build $ perl ./Build test $ sudo perl ./Build install

SUPPORT AND DOCUMENTATION

After installing, you can find documentation for this module with the perldoc command.

$ perldoc Devel::TraceUse

Alternately, read hack #74 in Perl Hacks, published by O'Reilly Media in 2006.

COPYRIGHT AND LICENCE

Copyright (C) 2006 chromatic.

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