From 8f1475b8dd840962c8c170cfc5304836792c6431 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Wed, 9 Oct 2019 12:22:08 -0400
Subject: [PATCH] refactor(reactivity): use NOOP for readonly computed setter
 in production

---
 packages/reactivity/src/computed.ts | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/packages/reactivity/src/computed.ts b/packages/reactivity/src/computed.ts
index b505e3015..9f2ede367 100644
--- a/packages/reactivity/src/computed.ts
+++ b/packages/reactivity/src/computed.ts
@@ -1,6 +1,6 @@
 import { effect, ReactiveEffect, activeReactiveEffectStack } from './effect'
 import { Ref, refSymbol, UnwrapNestedRefs } from './ref'
-import { isFunction } from '@vue/shared'
+import { isFunction, NOOP } from '@vue/shared'
 
 export interface ComputedRef<T> extends Ref<T> {
   readonly value: UnwrapNestedRefs<T>
@@ -28,11 +28,11 @@ export function computed<T>(
     ? (getterOrOptions as (() => T))
     : (getterOrOptions as WritableComputedOptions<T>).get
   const setter = isReadonly
-    ? () => {
-        if (__DEV__) {
+    ? __DEV__
+      ? () => {
           console.warn('Write operation failed: computed value is readonly')
         }
-      }
+      : NOOP
     : (getterOrOptions as WritableComputedOptions<T>).set
 
   let dirty = true