new

# File actionpack/lib/action_dispatch/routing/mapper.rb, line 60
        def initialize(set, scope, path, options)
          @set, @scope, @path, @options = set, scope, path, options
          @requirements, @conditions, @defaults = {}, {}, {}

          normalize_options!
          normalize_path!
          normalize_requirements!
          normalize_conditions!
          normalize_defaults!
        end