Introduce UserOrBot

mirai-core-api/src/commonMain/kotlin/Bot.kt

@@ -42,7 +42,7 @@ public suspend inline fun <B : Bot> B.alsoLogin(): B = also { login() }
  */
 public abstract class Bot internal constructor(
     public val configuration: BotConfiguration
-) : CoroutineScope, ContactOrBot {
+) : CoroutineScope, ContactOrBot, UserOrBot {
     public final override val coroutineContext: CoroutineContext = // for id
         configuration.parentCoroutineContext
             .plus(SupervisorJob(configuration.parentCoroutineContext[Job]))

mirai-core-api/src/commonMain/kotlin/contact/ContactOrBot.kt

@@ -16,6 +16,8 @@ import net.mamoe.mirai.Bot
  * 拥有 [id] 的对象.
  * 此为 [Contact] 与 [Bot] 的唯一公共接口.
  *
+ * @see UserOrBot
+ *
  * @see Contact
  * @see Bot
  */

mirai-core-api/src/commonMain/kotlin/contact/User.kt

@@ -36,7 +36,7 @@ import net.mamoe.mirai.utils.OverFileSizeMaxException
  *
  * 对于同一个 [Bot] 任何一个人的 [User] 实例都是单一的.
  */
-public interface User : Contact, CoroutineScope {
+public interface User : Contact, UserOrBot, CoroutineScope {
     /**
      * QQ 号码
      */

mirai-core-api/src/commonMain/kotlin/contact/UserOrBot.kt

@@ -0,0 +1,20 @@
+/*
+ * Copyright 2019-2020 Mamoe Technologies and contributors.
+ *
+ *  此源代码的使用受 GNU AFFERO GENERAL PUBLIC LICENSE version 3 许可证的约束, 可以在以下链接找到该许可证.
+ *  Use of this source code is governed by the GNU AGPLv3 license that can be found through the following link.
+ *
+ *  https://github.com/mamoe/mirai/blob/master/LICENSE
+ */
+
+package net.mamoe.mirai.contact
+
+import net.mamoe.mirai.Bot
+
+/**
+ * @see User
+ * @see Bot
+ *
+ * @see ContactOrBot
+ */
+public interface UserOrBot : ContactOrBot