@Override
public void plan(final FElem plan) {
final FElem e = planElem();
var.plan(e);
expr.plan(e);
plan.add(e);
}
@Override
public void plan(final FElem plan) {
final FElem e = planElem();
for (final Spec spec : specs) spec.plan(e);
plan.add(e);
}
