From: zhangenming <282126346@qq.com>
Date: Tue, 21 Sep 2021 17:03:09 +0000 (+0800)
Subject: refactor(reactivity): reuse computed getter check (#4623)
X-Git-Tag: v3.2.13~3
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=b264551c9be5ff62e41e220e57e77e15a8e11c54;p=thirdparty%2Fvuejs%2Fcore.git

refactor(reactivity): reuse computed getter check (#4623)
---

diff --git a/packages/reactivity/src/computed.ts b/packages/reactivity/src/computed.ts
index b329258843..11af231b4c 100644
--- a/packages/reactivity/src/computed.ts
+++ b/packages/reactivity/src/computed.ts
@@ -78,7 +78,8 @@ export function computed<T>(
   let getter: ComputedGetter<T>
   let setter: ComputedSetter<T>
 
-  if (isFunction(getterOrOptions)) {
+  const onlyGetter = isFunction(getterOrOptions)
+  if (onlyGetter) {
     getter = getterOrOptions
     setter = __DEV__
       ? () => {
@@ -90,11 +91,7 @@ export function computed<T>(
     setter = getterOrOptions.set
   }
 
-  const cRef = new ComputedRefImpl(
-    getter,
-    setter,
-    isFunction(getterOrOptions) || !getterOrOptions.set
-  )
+  const cRef = new ComputedRefImpl(getter, setter, onlyGetter || !setter)
 
   if (__DEV__ && debugOptions) {
     cRef.effect.onTrack = debugOptions.onTrack