- if buoys.any?
  ol.breadcrumb itemscope=true itemtype='http://schema.org/BreadcrumbList'
    - buoys.each.with_index(1) do |link, i|
      li itemprop='itemListElement' itemscope=true itemtype='http://schema.org/ListItem'
        - # if `link.current?` is true, link.options includes {class: 'current'}.
        - if link.current?
          span itemprop='name'
            = link.text
          meta itemprop='position' content=i
        - else
          = link_to link.url, link.options.merge(itemprop: :item) do
            span itemprop='name'
              =link.text
          meta itemprop='position' content=i