lib/lita/handler/event_router.rb in lita-4.0.4 vs lib/lita/handler/event_router.rb in lita-4.1.0

@@ -33,12 +33,12 @@
       #   handler instance, and passed a payload (a hash of arbitrary keys and values).
       #   @param event_name [String, Symbol] The name of the event to subscribe to.
       #   @yield The body of the event callback.
       #   @return [void]
       #   @since 4.0.0
-      def on(event_name, method_name_or_callable = nil)
+      def on(event_name, method_name_or_callable = nil, &block)
         event_subscriptions[normalize_event(event_name)] << Callback.new(
-          method_name_or_callable || (proc if block_given?)
+          method_name_or_callable || block
         )
       end
 
       # Returns an array of all callbacks registered for the named event.
       # @param event_name [String, Symbol] The name of the event to return callbacks for.