Prevent constants leaking

Dependency tracking constants were actually defined in global scope.

lib/jbuilder/dependency_tracker.rb

@@ -15,45 +15,47 @@
 end
 
 if dependency_tracker
-  dependency_tracking_module = Module.new do
-    # Matches:
-    #   json.partial! "messages/message"
-    #   json.partial!('messages/message')
-    #
-    DIRECT_RENDERS = /
-      \w+\.partial!     # json.partial!
-      \(?\s*            # optional parenthesis
-      (['"])([^'"]+)\1  # quoted value
-    /x
-
-    # Matches:
-    #   json.partial! partial: "comments/comment"
-    #   json.comments @post.comments, partial: "comments/comment", as: :comment
-    #   json.array! @posts, partial: "posts/post", as: :post
-    #   = render partial: "account"
-    #
-    INDIRECT_RENDERS = /
-      (?::partial\s*=>|partial:)  # partial: or :partial =>
-      \s*                         # optional whitespace
-      (['"])([^'"]+)\1            # quoted value
-    /x
-
-    def dependencies
-      direct_dependencies + indirect_dependencies + explicit_dependencies
-    end
-
-    private
-
-    def direct_dependencies
-      source.scan(DIRECT_RENDERS).map(&:second)
-    end
-
-    def indirect_dependencies
-      source.scan(INDIRECT_RENDERS).map(&:second)
+  class Jbuilder
+    module DependencyTrackerMethods
+      # Matches:
+      #   json.partial! "messages/message"
+      #   json.partial!('messages/message')
+      #
+      DIRECT_RENDERS = /
+        \w+\.partial!     # json.partial!
+        \(?\s*            # optional parenthesis
+        (['"])([^'"]+)\1  # quoted value
+      /x
+
+      # Matches:
+      #   json.partial! partial: "comments/comment"
+      #   json.comments @post.comments, partial: "comments/comment", as: :comment
+      #   json.array! @posts, partial: "posts/post", as: :post
+      #   = render partial: "account"
+      #
+      INDIRECT_RENDERS = /
+        (?::partial\s*=>|partial:)  # partial: or :partial =>
+        \s*                         # optional whitespace
+        (['"])([^'"]+)\1            # quoted value
+      /x
+
+      def dependencies
+        direct_dependencies + indirect_dependencies + explicit_dependencies
+      end
+
+      private
+
+      def direct_dependencies
+        source.scan(DIRECT_RENDERS).map(&:second)
+      end
+
+      def indirect_dependencies
+        source.scan(INDIRECT_RENDERS).map(&:second)
+      end
     end
   end
 
   ::Jbuilder::DependencyTracker = Class.new(dependency_tracker::ERBTracker)
-  ::Jbuilder::DependencyTracker.send :include, dependency_tracking_module
+  ::Jbuilder::DependencyTracker.send :include, ::Jbuilder::DependencyTrackerMethods
   dependency_tracker.register_tracker :jbuilder, ::Jbuilder::DependencyTracker
 end