markSkip :: Monad m => Ref -> BuilderT g m ()
markSkip ref = bs_circ . circ_refskip %= IS.insert (getRef ref)
markSkip :: Monad m => Ref -> BuilderT g m ()
markSkip ref = bs_circ . circ_refskip %= IS.insert (getRef ref)
markSkip ref = bs_circ . circ_refskip %= IS.insert (getRef ref)