chris prather daukqpratherorg oct 29 2007 937 p linda w wrote second problem universal method broken well according ooperlconway returnes true object class call method requested local method undefined stated error message return reference function since function method legally callable actually documented behavior know whether object able provide method autoload return value undef necessarily mean object able handle method call get around module authors use forward declaration see perlsub methods handle via autoload dummy subs still return code reference called fall autoload suitable autoload provided calling coderef cause error httpsearchcpanorgnwclarkperl588libuniversalpm chris thu 07 aug 2008 020653 0500 perl 46987 oocall failures autovivfunctions testing existence