class ActionView::Digestor

def tree(name, finder, partial = false, seen = {})
  logical_name = name.gsub(%r|/_|, "/")
  if template = find_template(finder, logical_name, [], partial, [])
    finder.rendered_format ||= template.formats.first
    if node = seen[template.identifier] # handle cycles in the tree
      node
    else
      node = seen[template.identifier] = Node.create(name, logical_name, template, partial)
      deps = DependencyTracker.find_dependencies(name, template, finder.view_paths)
      deps.uniq { |n| n.gsub(%r|/_|, "/") }.each do |dep_file|
        node.children << tree(dep_file, finder, true, seen)
      end
      node
    end
  else
    unless name.include?("#") # Dynamic template partial names can never be tracked
      logger.error "  Couldn't find template for digesting: #{name}"
    end
    seen[name] ||= Missing.new(name, logical_name, nil)
  end
end