write_generation!

# File actionpack/lib/action_controller/routing/route.rb, line 150
        def write_generation!
          # Build the main body of the generation
          body = "expired = false\n#{generation_extraction}\n#{generation_structure}"

          # If we have conditions that must be tested first, nest the body inside an if
          body = "if #{generation_requirements}\n#{body}\nend" if generation_requirements
          args = "options, hash, expire_on = {}"

          # Nest the body inside of a def block, and then compile it.
          raw_method = method_decl = "def generate_raw(#{args})\npath = begin\n#{body}\nend\n[path, hash]\nend"
          instance_eval method_decl, "generated code (#{__FILE__}:#{__LINE__})"

          # expire_on.keys == recall.keys; in other words, the keys in the expire_on hash
          # are the same as the keys that were recalled from the previous request. Thus,
          # we can use the expire_on.keys to determine which keys ought to be used to build
          # the query string. (Never use keys from the recalled request when building the
          # query string.)

          raw_method
        end