From 84fb928764602b547a86ba7711ccbe0d82d43595 Mon Sep 17 00:00:00 2001
From: Him188 <Him188@mamoe.net>
Date: Mon, 7 Jun 2021 17:47:40 +0800
Subject: [PATCH] Add check for arguments of
 `NetworkHandlerSupport.sendAndExpect`

---
 .../commonMain/kotlin/network/handler/NetworkHandlerSupport.kt   | 1 +
 1 file changed, 1 insertion(+)

diff --git a/mirai-core/src/commonMain/kotlin/network/handler/NetworkHandlerSupport.kt b/mirai-core/src/commonMain/kotlin/network/handler/NetworkHandlerSupport.kt
index 3e4d9e913..7afe0f993 100644
--- a/mirai-core/src/commonMain/kotlin/network/handler/NetworkHandlerSupport.kt
+++ b/mirai-core/src/commonMain/kotlin/network/handler/NetworkHandlerSupport.kt
@@ -88,6 +88,7 @@ internal abstract class NetworkHandlerSupport(
     }
 
     final override suspend fun sendAndExpect(packet: OutgoingPacket, timeout: Long, attempts: Int): Packet? {
+        require(attempts >= 1) { "attempts must be at least 1." }
         val listener = PacketListener(packet.commandName, packet.sequenceId)
         withExceptionCollector {
             repeat(attempts) {