From 401655b49e263fc28fec7f9251b330590e776e8d Mon Sep 17 00:00:00 2001
From: Shigma <1700011071@pku.edu.cn>
Date: Mon, 23 Aug 2021 20:43:15 +0800
Subject: [PATCH] fix(core): enhance typings for async hooks, fix #363

---
 packages/koishi-core/src/context.ts | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/packages/koishi-core/src/context.ts b/packages/koishi-core/src/context.ts
index 3b302e219c..3041d40aa2 100644
--- a/packages/koishi-core/src/context.ts
+++ b/packages/koishi-core/src/context.ts
@@ -11,7 +11,7 @@ import Router from '@koa/router'
 export type NextFunction = (next?: NextFunction) => Promise<void>
 export type Middleware = (session: Session, next: NextFunction) => any
 export type Promisify<T> = T extends Promise<unknown> ? T : Promise<T>
-export type Awaitable<T> = T extends Promise<unknown> ? T : T | Promise<T>
+export type Awaitable<T> = [T] extends [Promise<unknown>] ? T : T | Promise<T>
 export type Await<T> = T extends Promise<infer U> ? U : T
 export type Disposable = () => void
 
@@ -380,7 +380,7 @@ export class Context {
     const dispose = this.on(name, function (...args: any[]) {
       dispose()
       return listener.apply(this, args)
-    } as any, prepend)
+    }, prepend)
     return dispose
   }