1. The $answer object is using its own method instead of SomeData's method
  2. Use Class::MultiMethods, or less elegantly 
    sub add {
  @_ > 2 && return $_[0]->SUPER::add(@_[1 .. $#_]);
  ...
}

    [download]
  3. Don't use parameter based dispatch in perl ;)
HTH

_________
broquaint

In reply to Re: inheritance turns back and bites by broquaint
in thread inheritance turns back and bites by dada

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