On 11/21/2003 4:03 PM, Nick Ing-Simmons wrote: > Nick Ing-Simmons <nick.ing-simmons@elixent.com> writes: > >>>>package MyModule; >>>>use Module; >>>>use base 'Module'; >>>>use Cwd; >> >>If you moved that above the use Module line then when Module.pm >>was compiled it would know Cwd::cwd was a function. > > > Sorry I could not see wood for the trees! > > What is happening is that in MyModule you 'use Cwd', > which EXPORTS 'cwd' by default - so now there is a MyModule::cwd > which is a legitimate over-ride of base class's version so... > > You call MyModule->new which inherits from Module->new - so far so good. > But then Module::new calls MyModule->cwd which is the imported one. > So fix is: > > package MyModule; > use Module; > use base 'Module'; > use Cwd (); # No imports! > > Alternatively Module's new could do > > sub new { > my $p = shift; > Module->cwd; # ignore override by derived class. > } > > But that rather spoils it as a base class. > Ok, both of these work. I see now where I was flawed in understanding this one. Many thanks to Nick, Adi, and Yitzchak (May I ask how to pronounce your name?) for the explanations and solutions. BTW, strictly speaknig, wouldn't this still be considered a bug, since the behaviour difers depending on platform. -- A little learning is a dang'rous thing; Drink deep, or taste not the Pierian spring; There shallow draughts intoxicate the brain; And drinking largely sobers us again. - Alexander PopeThread Previous | Thread Next