Index: sdk/lib/async/stream.dart |
diff --git a/sdk/lib/async/stream.dart b/sdk/lib/async/stream.dart |
index 499386c47b89e415d8942fae26b510cd39ef69ee..4b29de8c0a6f842b926557b54f5f9eb7b23e961a 100644 |
--- a/sdk/lib/async/stream.dart |
+++ b/sdk/lib/async/stream.dart |
@@ -1236,7 +1236,7 @@ abstract class StreamSubscription<T> { |
/** |
* An interface that abstracts creation or handling of [Stream] events. |
*/ |
-abstract class EventSink<T> { |
+abstract class EventSink<T> implements Sink<T> { |
/** Create a data event */ |
void add(T event); |
/** Create an async error. */ |