1 files changed, 17 insertions, 4 deletions
diff --git a/actionpack/lib/action_dispatch/journey/route.rb b/actionpack/lib/action_dispatch/journey/route.rb
index 0cc8d83ac8..927fd369c4 100644
--- a/actionpack/lib/action_dispatch/journey/route.rb
+++ b/actionpack/lib/action_dispatch/journey/route.rb
@@ -73,6 +73,14 @@ module ActionDispatch
         @internal          = internal
       end
 
+      def eager_load!
+        path.eager_load!
+        ast
+        parts
+        required_defaults
+        nil
+      end
+
       def ast
         @decorated_ast ||= begin
           decorated_ast = path.ast
@@ -96,13 +104,18 @@ module ActionDispatch
         required_parts + required_defaults.keys
       end
 
-      def score(constraints)
+      def score(supplied_keys)
         required_keys = path.required_names
-        supplied_keys = constraints.map { |k, v| v && k.to_s }.compact
 
-        return -1 unless (required_keys - supplied_keys).empty?
+        required_keys.each do |k|
+          return -1 unless supplied_keys.include?(k)
+        end
+
+        score = 0
+        path.names.each do |k|
+          score += 1 if supplied_keys.include?(k)
+        end
 
-        score = (supplied_keys & path.names).length
         score + (required_defaults.length * 2)
       end