static void
sweep_line_fini (sweep_line_t *sweep)
{
    _cairo_freepool_fini (&sweep->coverage.pool);
    pqueue_fini (&sweep->stop);

    if (sweep->spans != sweep->spans_stack)
	free (sweep->spans);
}
static void
sweep_line_fini (sweep_line_t *sweep_line)
{
    pqueue_fini (&sweep_line->pq);
}