decomposed_match

# File actionpack/lib/action_dispatch/routing/mapper.rb, line 1660
        def decomposed_match(path, controller, options, _path, to, via, formatted, anchor, options_constraints) # :nodoc:
          if on = options.delete(:on)
            send(on) { decomposed_match(path, controller, options, _path, to, via, formatted, anchor, options_constraints) }
          else
            case @scope.scope_level
            when :resources
              nested { decomposed_match(path, controller, options, _path, to, via, formatted, anchor, options_constraints) }
            when :resource
              member { decomposed_match(path, controller, options, _path, to, via, formatted, anchor, options_constraints) }
            else
              add_route(path, controller, options, _path, to, via, formatted, anchor, options_constraints)
            end
          end
        end