# File lib/roodi/core/runner.rb, line 70
      def check(filename, content)
        @checks ||= load_checks
        @checker ||= CheckingVisitor.new(@checks)
        @checks.each {|check| check.start_file(filename)}
        node = parse(filename, content)
        node.accept(@checker) if node
        @checks.each {|check| check.end_file(filename)}
      end