1 files changed, 10 insertions, 2 deletions
diff --git a/actionpack/lib/abstract_controller/base.rb b/actionpack/lib/abstract_controller/base.rb
index acdfb33efa..51c661f735 100644
--- a/actionpack/lib/abstract_controller/base.rb
+++ b/actionpack/lib/abstract_controller/base.rb
@@ -82,7 +82,7 @@ module AbstractController
             # Except for public instance methods of Base and its ancestors
             internal_methods +
             # Be sure to include shadowed public instance methods of this class
-            public_instance_methods(false)).uniq.map { |x| x.to_s } -
+            public_instance_methods(false)).uniq.map(&:to_s) -
             # And always exclude explicitly hidden actions
             hidden_actions.to_a
 
@@ -164,6 +164,14 @@ module AbstractController
       _find_action_name(action_name).present?
     end
 
+    # Returns true if the given controller is capable of rendering
+    # a path. A subclass of +AbstractController::Base+
+    # may return false. An Email controller for example does not
+    # support paths, only full URLs.
+    def self.supports_path?
+      true
+    end
+
     private
 
       # Returns true if the name can be considered an action because
@@ -255,7 +263,7 @@ module AbstractController
 
       # Checks if the action name is valid and returns false otherwise.
       def _valid_action_name?(action_name)
-        action_name !~ Regexp.new(File::SEPARATOR)
+        !action_name.to_s.include? File::SEPARATOR
       end
   end
 end