From 99cd690a7019656b0b67c6664453f27a6d8a658e Mon Sep 17 00:00:00 2001
From: Vladimir Mihailenco <vladimir.webdev@gmail.com>
Date: Sun, 2 Feb 2020 10:52:57 +0200
Subject: [PATCH] Don't create empty map for nil values

---
 command.go       | 16 +++++++++-------
 commands_test.go |  2 +-
 2 files changed, 10 insertions(+), 8 deletions(-)

diff --git a/command.go b/command.go
index d7c8e0d..c70973d 100644
--- a/command.go
+++ b/command.go
@@ -999,18 +999,20 @@ func xMessageSliceParser(rd *proto.Reader, n int64) (interface{}, error) {
 				return nil, err
 			}
 
-			v, err := rd.ReadArrayReply(stringInterfaceMapParser)
-			if err != nil && err != proto.Nil {
-				return nil, err
-			}
+			var values map[string]interface{}
 
-			if v == nil || err == proto.Nil {
-				v = make(map[string]interface{})
+			v, err := rd.ReadArrayReply(stringInterfaceMapParser)
+			if err != nil {
+				if err != proto.Nil {
+					return nil, err
+				}
+			} else {
+				values = v.(map[string]interface{})
 			}
 
 			msgs = append(msgs, XMessage{
 				ID:     id,
-				Values: v.(map[string]interface{}),
+				Values: values,
 			})
 			return nil, nil
 		})
diff --git a/commands_test.go b/commands_test.go
index 3970808..392fc09 100644
--- a/commands_test.go
+++ b/commands_test.go
@@ -3598,7 +3598,7 @@ var _ = Describe("Commands", func() {
 					Stream: "stream",
 					Messages: []redis.XMessage{
 						{ID: "1-0", Values: map[string]interface{}{"uno": "un"}},
-						{ID: "2-0", Values: map[string]interface{}{}},
+						{ID: "2-0", Values: nil},
 						{ID: "3-0", Values: map[string]interface{}{"tres": "troix"}},
 					}},
 				}))