avoid application crash

when userProperty was nil，to set the key & value，here will crash
emqx · Jun 19, 2022 · 2e55f03 · 2e55f03
1 parent 99180d1
commit 2e55f03
Showing 1 changed file with 5 additions and 0 deletions.
diff --git a/Source/MqttDecodePublish.swift b/Source/MqttDecodePublish.swift
@@ -138,6 +138,11 @@ public class MqttDecodePublish: NSObject {
                     }
                     value = valRes.resStr
                     dataIndex = valRes.newOffset
+
+                    //fixme:这里需要注意，直接强制解包会崩溃
+                    if userProperty == nil {
+                        userProperty = [:]
+                    }
 
                     userProperty![key!] = value