From 61b3b8122c4fb0492c50896c87c71a2d5dd67d59 Mon Sep 17 00:00:00 2001
From: Bruce Marriner <bruce@sqls.net>
Date: Mon, 11 Jan 2016 13:23:11 -0600
Subject: [PATCH] Only close chans if they are open, closes #80

---
 discord.go | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/discord.go b/discord.go
index 1ec1844..e985dbf 100644
--- a/discord.go
+++ b/discord.go
@@ -125,8 +125,13 @@ func (s *Session) Close() {
 
 	s.DataReady = false
 
-	close(s.listenChan)
-	close(s.heartbeatChan)
+	if s.listenChan != nil {
+		close(s.listenChan)
+	}
+
+	if s.heartbeatChan != nil {
+		close(s.heartbeatChan)
+	}
 
 	if s.wsConn != nil {
 		s.wsConn.Close()