From: daiwei <daiwei521@126.com>
Date: Wed, 3 Dec 2025 07:54:59 +0000 (+0800)
Subject: chore: clarify `isUpdating` purpose to prevent recursive updates
X-Git-Tag: v3.6.0-alpha.6~15
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=a3a20afcd4e511e8528f432126786ecc14cb761b;p=thirdparty%2Fvuejs%2Fcore.git

chore: clarify `isUpdating` purpose to prevent recursive updates
---

diff --git a/packages/runtime-vapor/src/renderEffect.ts b/packages/runtime-vapor/src/renderEffect.ts
index 5fc2d54142..ce8eaf46af 100644
--- a/packages/runtime-vapor/src/renderEffect.ts
+++ b/packages/runtime-vapor/src/renderEffect.ts
@@ -53,8 +53,6 @@ export class RenderEffect extends ReactiveEffect {
 
     this.job = job
     this.i = instance
-
-    // TODO recurse handling
   }
 
   fn(): void {
@@ -67,6 +65,7 @@ export class RenderEffect extends ReactiveEffect {
     }
     const prev = setCurrentInstance(instance, scope)
     if (hasUpdateHooks && instance.isMounted && !instance.isUpdating) {
+      // avoid recurse update until updateJob flushed
       instance.isUpdating = true
       instance.bu && invokeArrayFns(instance.bu)
       this.render()