From 2bfc20048e1b3835d5c09cb172336d5505b4e62e Mon Sep 17 00:00:00 2001
From: Karlatemp <karlatemp@vip.qq.com>
Date: Tue, 16 Feb 2021 20:56:26 +0800
Subject: [PATCH] [MessageSubscribersBuilder] Ignore `null` execution result.
 close #1011

---
 .../src/commonMain/kotlin/event/MessageSubscribersBuilder.kt    | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/mirai-core-api/src/commonMain/kotlin/event/MessageSubscribersBuilder.kt b/mirai-core-api/src/commonMain/kotlin/event/MessageSubscribersBuilder.kt
index 6a20d70bb..b4e941716 100644
--- a/mirai-core-api/src/commonMain/kotlin/event/MessageSubscribersBuilder.kt
+++ b/mirai-core-api/src/commonMain/kotlin/event/MessageSubscribersBuilder.kt
@@ -475,6 +475,7 @@ public open class MessageSubscribersBuilder<M : MessageEvent, out Ret, R : RR, R
     internal suspend inline fun executeAndReply(m: M, replier: suspend M.(String) -> Any?): RR {
         when (val message = replier(m, m.message.contentToString())) {
             is Message -> m.subject.sendMessage(message)
+            null,
             is Unit -> Unit
             else -> m.subject.sendMessage(message.toString())
         }
@@ -485,6 +486,7 @@ public open class MessageSubscribersBuilder<M : MessageEvent, out Ret, R : RR, R
     internal suspend inline fun executeAndQuoteReply(m: M, replier: suspend M.(String) -> Any?): RR {
         when (val message = replier(m, m.message.contentToString())) {
             is Message -> m.subject.sendMessage(m.message.quote() + message)
+            null,
             is Unit -> Unit
             else -> m.subject.sendMessage(m.message.quote() + message.toString())
         }