Check disposable isn't null before disposing it

Elad Zelingher · Elad Zelingher · commit 085fe68febf7 · 2015-08-24T12:41:14.000+03:00
diff --git a/src/net45/WampSharp/WAMP2/V2/PubSub/WampRawTopic.cs b/src/net45/WampSharp/WAMP2/V2/PubSub/WampRawTopic.cs
@@ -199,8 +199,11 @@ public void Unsubscribe(IUnsubscribeRequest<TMessage> request)
 
         public void Dispose()
         {
-            SubscriptionDisposable.Dispose();
-            SubscriptionDisposable = null;
+            if (SubscriptionDisposable != null)
+            {
+                SubscriptionDisposable.Dispose();
+                SubscriptionDisposable = null;
+            }
         }
 
         #endregion

Original file line number	Diff line number	Diff line change
`@@ -199,8 +199,11 @@ public void Unsubscribe(IUnsubscribeRequest<TMessage> request)`
`199`	`199`
`200`	`200`	`public void Dispose()`
`201`	`201`	`{`
`202`		`- SubscriptionDisposable.Dispose();`
`203`		`- SubscriptionDisposable = null;`
	`202`	`+ if (SubscriptionDisposable != null)`
	`203`	`+ {`
	`204`	`+ SubscriptionDisposable.Dispose();`
	`205`	`+ SubscriptionDisposable = null;`
	`206`	`+ }`
`204`	`207`	`}`
`205`	`208`
`206`	`209`	`#endregion`