3 files changed, 13 insertions, 1 deletions
diff --git a/actionpack/lib/action_dispatch/journey/path/pattern.rb b/actionpack/lib/action_dispatch/journey/path/pattern.rb
index 4a571ec546..d37aa1fbe5 100644
--- a/actionpack/lib/action_dispatch/journey/path/pattern.rb
+++ b/actionpack/lib/action_dispatch/journey/path/pattern.rb
@@ -20,7 +20,7 @@ module ActionDispatch
             @separators   = strexp.separators.join
             @anchored     = strexp.anchor
           else
-            raise "wtf bro: #{strexp}"
+            raise ArgumentError, "Bad expression: #{strexp}"
           end
 
           @names          = nil
diff --git a/actionpack/lib/action_dispatch/journey/route.rb b/actionpack/lib/action_dispatch/journey/route.rb
index 063302e0f2..6fda085681 100644
--- a/actionpack/lib/action_dispatch/journey/route.rb
+++ b/actionpack/lib/action_dispatch/journey/route.rb
@@ -71,6 +71,10 @@ module ActionDispatch
         Visitors::Formatter.new(path_options).accept(path.spec)
       end
 
+      def optimized_path
+        Visitors::OptimizedPath.new.accept(path.spec)
+      end
+
       def optional_parts
         path.optional_names.map { |n| n.to_sym }
       end
diff --git a/actionpack/lib/action_dispatch/journey/visitors.rb b/actionpack/lib/action_dispatch/journey/visitors.rb
index 46bd58c178..2964d80d9f 100644
--- a/actionpack/lib/action_dispatch/journey/visitors.rb
+++ b/actionpack/lib/action_dispatch/journey/visitors.rb
@@ -74,6 +74,14 @@ module ActionDispatch
         end
       end
 
+      class OptimizedPath < String # :nodoc:
+        private
+
+        def visit_GROUP(node)
+          ""
+        end
+      end
+
       # Used for formatting urls (url_for)
       class Formatter < Visitor # :nodoc:
         attr_reader :options, :consumed