From 356b9e4495b4d71a1ea46288d2a4d44696b3281c Mon Sep 17 00:00:00 2001
From: Shigma <1700011071@pku.edu.cn>
Date: Sun, 13 Sep 2020 15:15:50 +0800
Subject: [PATCH] feat(core): use define for private session properties

---
 packages/koishi-core/src/session.ts | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/packages/koishi-core/src/session.ts b/packages/koishi-core/src/session.ts
index 17acdc01fe..8f5dee7bc4 100644
--- a/packages/koishi-core/src/session.ts
+++ b/packages/koishi-core/src/session.ts
@@ -85,11 +85,13 @@ export class Session<U extends User.Field = never, G extends Group.Field = never
   $uuid = Random.uuid()
 
   private _delay?: number
-  private _queued = Promise.resolve()
-  private _hooks?: (() => void)[] = []
+  private _queued: Promise<void>
+  private _hooks: (() => void)[]
 
   constructor(app: App, session: Partial<Session>) {
     defineProperty(this, '$app', app)
+    defineProperty(this, '_queued', Promise.resolve())
+    defineProperty(this, '_hooks', [])
     Object.assign(this, session)
   }