class RDoc::RI::Store

def save_cache
  # HACK mongrel-1.1.5 documents its files twice
  @cache[:attributes].      each do |_, m| m.uniq!; m.sort! end
  @cache[:class_methods].   each do |_, m| m.uniq!; m.sort! end
  @cache[:instance_methods].each do |_, m| m.uniq!; m.sort! end
  open cache_path, 'wb' do |io|
    Marshal.dump @cache, io
  end
end