From: Evan You <yyx990803@gmail.com>
Date: Wed, 2 Jun 2021 19:51:27 +0000 (-0400)
Subject: fix(watch): avoid traversing objects that are marked non-reactive
X-Git-Tag: v3.1.0-beta.7~2
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=9acc9a1fa838bdcdf673d2f7cc3f996b2b69ffbc;p=thirdparty%2Fvuejs%2Fcore.git

fix(watch): avoid traversing objects that are marked non-reactive

e.g. Vue public instances
---

diff --git a/packages/runtime-core/src/apiWatch.ts b/packages/runtime-core/src/apiWatch.ts
index eaa699ce7b..b7092248e2 100644
--- a/packages/runtime-core/src/apiWatch.ts
+++ b/packages/runtime-core/src/apiWatch.ts
@@ -5,7 +5,8 @@ import {
   Ref,
   ComputedRef,
   ReactiveEffectOptions,
-  isReactive
+  isReactive,
+  ReactiveFlags
 } from '@vue/reactivity'
 import { SchedulerJob, queuePreFlushCb } from './scheduler'
 import {
@@ -390,7 +391,11 @@ export function createPathGetter(ctx: any, path: string) {
 }
 
 function traverse(value: unknown, seen: Set<unknown> = new Set()) {
-  if (!isObject(value) || seen.has(value)) {
+  if (
+    !isObject(value) ||
+    seen.has(value) ||
+    (value as any)[ReactiveFlags.SKIP]
+  ) {
     return value
   }
   seen.add(value)