NAME

Aspect::Library::Trace - Aspect-oriented function call tracing

SYNOPSIS

  use Aspect;
  use Aspect::Library::Trace;
  
  aspect Trace => call qr/^Foo::/;
  
  Foo::foo1
    Foo::foo2
      Foo::foo3
  Foo::foo2
    Foo::foo3
  Foo::foo2
    Foo::foo3

DESCRIPTION

Aspect Oriented Programming is a programming paradigm that increases modularity by enabling improved separation of concerns.

It is most useful when dealing with cross-cutting concerns that would otherwise require code to be scattered around in many places.

Aspect::Library::Trace is an Aspect library that implements nested functional call tracing, in the style formerly offered by the dprofpp -T command provided by Devel::DProf (before that module became unusable).

Conventional Usage

The basic usage is very simple, just create an Trace aspect as shown in the "SYNOPSIS".

Load Aspect, then Aspect::Library::Trace, then create the aspect using the aspect function.

Any calls to functions described in the pointcut will be printed to STDERR. Nesting is indicated via indenting.

Because the depth is tracked at a per-Aspect level, you should avoid creating more than one trace Aspect or the indenting levels will be mixed up and the output will become largely meaningless.

Import Usage

For even more convenience (and even less typing) you can use the following shorthand 1-line form.

  use Aspect::Library::Trace qr/^Module::/;

When used this way, you also don't need to use Aspect.

SUPPORT

Bugs should be reported via the CPAN bug tracker at

http://rt.cpan.org/NoAuth/ReportBug.html?Queue=Aspect-Library-Trace

For other issues, contact the author.

AUTHOR

Adam Kennedy <adamk@cpan.org>

SEE ALSO

Aspect

COPYRIGHT

Copyright 2009 - 2011 Adam Kennedy.

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

The full text of the license can be found in the LICENSE file included with this module.