From 65ed2c7ceed24e1665ea5d92a66ca66c8c60d046 Mon Sep 17 00:00:00 2001
From: Dmitriy Ryajov <dryajov@gmail.com>
Date: Sun, 16 Feb 2020 09:53:33 -0600
Subject: [PATCH] make code more robust

---
 libp2p/muxers/muxer.nim | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/libp2p/muxers/muxer.nim b/libp2p/muxers/muxer.nim
index bebd19fd9..4b2a71d1a 100644
--- a/libp2p/muxers/muxer.nim
+++ b/libp2p/muxers/muxer.nim
@@ -46,11 +46,11 @@ proc newMuxerProvider*(creator: MuxerConstructor, codec: string): MuxerProvider
 method init(c: MuxerProvider) =
   proc handler(conn: Connection, proto: string) {.async, gcsafe, closure.} =
     let muxer = c.newMuxer(conn)
-    var handlerFut: Future[void] = newFuture[void]()
-    if not isNil(c.muxerHandler):
-      handlerFut = c.muxerHandler(muxer)
+    var handlerFut = if not isNil(c.muxerHandler):
+      c.muxerHandler(muxer)
     else:
-      handlerFut.complete()
+      var dummyFut = newFuture[void]()
+      dummyFut.complete(); dummyFut
 
     if not isNil(c.streamHandler):
       muxer.streamHandler = c.streamHandler