data => sub { $self->gotodata(@_) },
There is a gotcha in this, in that you have just made your anonymous sub into a closure. Note that $self is in the pad space of the surrounding code, and its value is the one object that is around when the line is executed.

I have seen memory leaks, where the coderef gets stored into a member of $self's hash (or some structure deeper under $self), leading to a subtle circular reference.

--
I'm Not Just Another Perl Hacker

In reply to Re^2: coderef to an object method by rinceWind
in thread coderef to an object method by genecutl

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