From 8be29e2f193c9503aed2e76e3775e157dbebb576 Mon Sep 17 00:00:00 2001
From: toBeTheLight <yl1991web@126.com>
Date: Sat, 16 Dec 2017 14:47:44 -0600
Subject: [PATCH] refactor: return is better when inject has no value (#7258)

---
 src/core/util/options.js | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/core/util/options.js b/src/core/util/options.js
index 07d9cfc0..ff58cd30 100644
--- a/src/core/util/options.js
+++ b/src/core/util/options.js
@@ -334,6 +334,7 @@ function validatePropObject (
  */
 function normalizeInject (options: Object, vm: ?Component) {
   const inject = options.inject
+  if (!inject) return
   const normalized = options.inject = {}
   if (Array.isArray(inject)) {
     for (let i = 0; i < inject.length; i++) {
@@ -346,7 +347,7 @@ function normalizeInject (options: Object, vm: ?Component) {
         ? extend({ from: key }, val)
         : { from: val }
     }
-  } else if (process.env.NODE_ENV !== 'production' && inject) {
+  } else if (process.env.NODE_ENV !== 'production') {
     warn(
       `Invalid value for option "inject": expected an Array or an Object, ` +
       `but got ${toRawType(inject)}.`,