From 164bae388f3e66278ef845275e712f16e59739d5 Mon Sep 17 00:00:00 2001
From: dj <odjbin@163.com>
Date: Thu, 26 Feb 2026 12:00:31 +0800
Subject: [PATCH] =?UTF-8?q?=E8=A7=A3=E5=86=B3=E9=97=AE=E9=A2=98---"?=
 =?UTF-8?q?=E5=93=8D=E5=BA=94=E5=BC=8F=E6=95=B0=E6=8D=AE=E7=9A=84=E6=94=B9?=
 =?UTF-8?q?=E5=8F=98=E5=B9=B6=E4=B8=8D=E4=BC=9A=E5=BC=95=E8=B5=B7watch?=
 =?UTF-8?q?=E7=9A=84=E8=A7=A6=E5=8F=91"?=
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---
 packages/runtime-core/src/apiWatch.ts | 19 +++++++++++++++++--
 1 file changed, 17 insertions(+), 2 deletions(-)

diff --git a/packages/runtime-core/src/apiWatch.ts b/packages/runtime-core/src/apiWatch.ts
index 7a5e5c4..23a92b3 100644
--- a/packages/runtime-core/src/apiWatch.ts
+++ b/packages/runtime-core/src/apiWatch.ts
@@ -1,4 +1,4 @@
-import { EMPTY_OBJ, hasChanged } from '@vue/shared'
+import { EMPTY_OBJ, hasChanged, isObject } from '@vue/shared'
 import { isReactive, ReactiveEffect } from '@vue/reactivity'
 import { queuePreFlushCb } from '@vue/runtime-core'
 
@@ -28,7 +28,8 @@ function doWatch(
     //todo
     //浅拷贝的形式--指向同样的内存空间
     const baseGetter = getter
-    getter = () => baseGetter()
+    //等同于将source的属性传进去了
+    getter = () => traverse(baseGetter())
   }
 
   let oldValue = {}
@@ -58,3 +59,17 @@ function doWatch(
     effect.stop()
   }
 }
+
+/**
+ * 本质上是拿value, 出发一次getter行为
+ * @param value
+ */
+export function traverse(value: unknown) {
+  if (!isObject(value)) {
+    return value
+  }
+  for (const key in value as object) {
+    traverse((value as object)[key])
+  }
+  return value
+}