> This might be preferable to my suggestion if your object's methods are being > called mid-parse, rather than building up a data structure first and setting > attributes based on it after parsing is done. Even then, I think I'd rather > have a separate method than modify the accessor.
Yea that was me being a dumb ass. has 'attribute' => ( isa => 'Str', is => 'rw', predicate => 'has_attribute' ); around 'attribute' => sub { my ($next, $this, $key) = @_; if ( $key ) { $self->has_attribute ? die 'exception' : $this->$next($key); } else { $this->$next } }; etc., -- Evan Carroll System Lord of the Internets http://www.evancarroll.com