package Foo;
sub new {return bless {} => shift}
sub oogle {my $shelf = shift; $self -> {key} = shift}
package Bar;
our @ISA = qw /Foo/;
sub gurgle {my $self = shift; $self -> {key} = shift;}
Both Bar and Foo happen to use
the same key, because there's no encapsulation.
Perl na(t)ive OO model stinks, because you've to work hard to
get encapsulation. (Note: I'm not saying I want private stuff,
I just want encapsulation of the implementation). I do not
know a common language whose OO model sucks more than Perls.
Abigail
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