Format samples and samples-dev directories.

samples-dev/swarm/swarm_ui_lib/observable/EventBatch.dart

 // Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 part of observable;
 
 /**
  * Accumulates change events from several observable objects.
  *
  * wrap() is public and used by client code.  The other methods are used by
  * AbstractObservable, which works with this class to implement batching.
  */
 class EventBatch {
-
   /** The current active batch, if any. */
   static EventBatch current;
 
   /** Used to generate unique ids for observable objects. */
   static int nextUid;
 
   /** Map from observable object's uid to their tracked events. */
   // TODO(sigmund): use [Observable] instead of [int] when [Map] can support it,
   Map<int, EventSummary> summaries;
 
@@ skipping 56 matching lines @@
       nextUid = 1;
     }
     return nextUid++;
   }
 
   /** Retrieves the events associated with {@code obj}. */
   EventSummary getEvents(Observable obj) {
     int uid = obj.uid;
     EventSummary summary = summaries[uid];
     if (summary == null) {
-      assert (!sealed);
+      assert(!sealed);
       summary = new EventSummary(obj);
       summaries[uid] = summary;
     }
     return summary;
   }
 
   /** Fires all events at once. */
   void _notify() {
     assert(!sealed);
     sealed = true;
     for (final summary in summaries.values) {
       summary.notify();
     }
   }
 }