If your intent is to ensure that increment calls add in the same package, why not use: 
sub increment {
    my $self = shift;
    &add($self, number => 1);
}

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Use subroutine calls when you want to create your own explicit binding, use -> notation when you desire runtime binding of the message.

Of course, it would be my opinion that it is particularly bad form for a child class to re-implement a method in a manner that is not backward compatible - it's a violation of the contract as far as I'm concerned.

--Toby Ovod-Everett

In reply to Re: Re: Re: Re: inheritance turns back and bites by tovod-everett
in thread inheritance turns back and bites by dada

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