- 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}