Fix a side-effect for #16

Author: jumperchen

CHANGELOG.md

@@ -1,4 +1,4 @@
-## 0.9.1
+## 0.9.1+1
 
 **New Feature:**
 

lib/src/adapter/adapter.dart

@@ -93,9 +93,9 @@ class _MemoryStoreAdapter extends EventEmitter implements Adapter {
     var rooms = sids[id];
     if (rooms != null) {
       for (var room in rooms.keys) {
-        if (rooms.containsKey(room)) {
-          rooms[room].del(id);
-          if (rooms[room].length == 0) rooms.remove(room);
+        if (this.rooms.containsKey(room)) {
+          this.rooms[room].del(id);
+          if (this.rooms[room].length == 0) this.rooms.remove(room);
         }
       }
     }

pubspec.yaml

@@ -2,7 +2,7 @@ name: socket_io
 description: >
   Port of JS/Node library Socket.io. It enables real-time, bidirectional and 
   event-based communication cross-platform.
-version: 0.9.1
+version: 0.9.1+1
 author: jumperchen <jumperchen@potix.com>
 homepage: https://www.zkoss.org
 repository: https://github.com/rikulo/socket.io-dart