Modify decorator routing comment, variable and whitespace

2 files changed, 5 insertions, 8 deletions

diff --git a/src/rabbit_exchange_decorator.erl b/src/rabbit_exchange_decorator.erl
index d8600835..45d0cbf5 100644
--- a/src/rabbit_exchange_decorator.erl
+++ b/src/rabbit_exchange_decorator.erl
@@ -57,12 +57,10 @@
 -callback remove_bindings(serial(), rabbit_types:exchange(),
                           [rabbit_types:binding()]) -> 'ok'.
 
-%% %% called after exchange routing
-%% %% return value is a list of queues to be added to the list of
-%% %% destination queues. decorators must register separately for
-%% %% this callback using exchange_decorator_route.
+%% Decorators can optionally implement route/2 which allows additional
+%% queues to be added to the routing decision.
 %% -callback route(rabbit_types:exchange(), rabbit_types:delivery()) ->
-%%     [rabbit_amqqueue:name()].
+%%     [rabbit_amqqueue:name() | rabbit_types:exchange()].
 
 -else.
 
diff --git a/src/rabbit_registry.erl b/src/rabbit_registry.erl
index 22700a7c..f6bc4071 100644
--- a/src/rabbit_registry.erl
+++ b/src/rabbit_registry.erl
@@ -95,13 +95,12 @@ internal_unregister(Class, TypeName) ->
     true = ets:delete(?ETS_NAME, UnregArg),
     ok.
 
-
 %% (un)register exchange decorator route callback only when implemented
 %% to avoid decorators being called unnecessarily on the fast publishing path
-conditional_register({{exchange_decorator, _Type}, ModuleName}) ->
+conditional_register({{exchange_decorator, Type}, ModuleName}) ->
     case erlang:function_exported(ModuleName, route, 2) of
         true  -> true = ets:insert(?ETS_NAME,
-                                   {{exchange_decorator_route, _Type},
+                                   {{exchange_decorator_route, Type},
                                     ModuleName});
         false -> ok
     end;