@@ -103,28 +103,11 @@
 {
 	return (id)[[OFMapTableDictionary alloc] initWithKey: firstKey
 						   arguments: arguments];
 }
 
-- (instancetype)retain
-{
-	return self;
-}
-
-- (instancetype)autorelease
-{
-	return self;
-}
-
-- (void)release
-{
-}
-
-- (void)dealloc
-{
-	OF_DEALLOC_UNSUPPORTED
-}
+OF_SINGLETON_METHODS
 @end
 
 @implementation OFDictionary
 + (void)initialize
 {