[Modify] Polish it

5 years ago · c8de370195
parent 063aae69b3
commit c8de370195
1 changed files with 2 additions and 1 deletions
--- a/websocket-sharp/Net/HttpListenerPrefixCollection.cs
+++ b/websocket-sharp/Net/HttpListenerPrefixCollection.cs
@ -190,10 +190,11 @@ namespace WebSocketSharp.Net
    /// </exception>
    public bool Contains (string uriPrefix)
    {
-      _listener.CheckDisposed ();
      if (uriPrefix == null)
        throw new ArgumentNullException ("uriPrefix");

+      _listener.CheckDisposed ();
+
      return _prefixes.Contains (uriPrefix);
    }