X-Git-Url: http://git.vpit.fr/?a=blobdiff_plain;f=lib%2FLaTeX%2FTikZ%2FFunctor.pm;h=2b6974e995a2854ada2a3714a5d4cf4911f99022;hb=8b77cfe7dbee01186e578c4037737e2895edea87;hp=344816438038170d7a7f5668f9929fc14b67ade9;hpb=e6c6fbca8df4f8df7bbce2eb98dd260ed51d9141;p=perl%2Fmodules%2FLaTeX-TikZ.git

diff --git a/lib/LaTeX/TikZ/Functor.pm b/lib/LaTeX/TikZ/Functor.pm
index 3448164..2b6974e 100644
--- a/lib/LaTeX/TikZ/Functor.pm
+++ b/lib/LaTeX/TikZ/Functor.pm
@@ -60,7 +60,7 @@ BEGIN {
   }
 
   Carp::confess("Invalid handler for target $target")
-                                                  unless ref $handler eq 'CODE';
+                             unless defined $handler and ref $handler eq 'CODE';
 
   return [ $target, $handler, $is_set ];
  });
@@ -160,6 +160,10 @@ LaTeX::TikZ::Interface->register(
  },
 );
 
+=head1 SEE ALSO
+
+L<LaTeX::TikZ>.
+
 =head1 AUTHOR
 
 Vincent Pit, C<< <perl at profvince.com> >>, L<http://www.profvince.com>.