NAME
    Module::Notify - trigger a callback when a module is loaded

SYNOPSIS
       use Module::Notify;
   
       Module::Notify->new(Foo => sub { print "2\n" });
   
       # Count to three...
       print "1\n";
       require Foo;
       print "3\n";

DESCRIPTION
    Module::Notify runs callback code when it detects that a particular module
    has been loaded.

  Constructor
    `new($module_name, $callback)`
        Runs the callback when the module is loaded.

        Unlike most OO modules, you can freely use this in void context, and
        it will work fine. However, if you keep the returned reference, you
        can call methods on it:

           my $handle = Module::Notify->new($module, $callback);

        If the module is *already* loaded, runs the callback immediately, and
        returns undef instead of an object.

  Object Methods
    `cancel`
        Cancels the callback.

CAVEATS
    Module::Notify works through an @INC hook. It ought to be the first item
    in @INC and does its best to insert itself as $INC[0] at every opportunity
    it gets.

    If any other path or hook does end up before Module::Notify's @INC hook,
    then any modules loaded via that path or hook will escape Module::Notify's
    notice.

BUGS
    Please report any bugs to
    <http://rt.cpan.org/Dist/Display.html?Queue=Module-Notify>.

SEE ALSO
    Module::Runtime.

AUTHOR
    Toby Inkster <tobyink@cpan.org>.

COPYRIGHT AND LICENCE
    This software is copyright (c) 2013 by Toby Inkster.

    This is free software; you can redistribute it and/or modify it under the
    same terms as the Perl 5 programming language system itself.

DISCLAIMER OF WARRANTIES
    THIS PACKAGE IS PROVIDED "AS IS" AND WITHOUT ANY EXPRESS OR IMPLIED
    WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
    MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.