No need to have #generate and #generate_extras per instance

actionpack/lib/action_controller/routing/route.rb

@@ -122,6 +122,16 @@ def freeze
         super
       end
 
+      def generate(options, hash, expire_on = {})
+        path, hash = generate_raw(options, hash, expire_on)
+        append_query_string(path, hash, extra_keys(options))
+      end
+
+      def generate_extras(options, hash, expire_on = {})
+        path, hash = generate_raw(options, hash, expire_on)
+        [path, extra_keys(options)]
+      end
+
       private
         def requirement_for(key)
           return requirements[key] if requirements.key? key
@@ -150,11 +160,6 @@ def write_generation!
           # the query string. (Never use keys from the recalled request when building the
           # query string.)
 
-          method_decl = "def generate(#{args})\npath, hash = generate_raw(options, hash, expire_on)\nappend_query_string(path, hash, extra_keys(options))\nend"
-          instance_eval method_decl, "generated code (#{__FILE__}:#{__LINE__})"
-
-          method_decl = "def generate_extras(#{args})\npath, hash = generate_raw(options, hash, expire_on)\n[path, extra_keys(options)]\nend"
-          instance_eval method_decl, "generated code (#{__FILE__}:#{__LINE__})"
           raw_method
         end