From 19122df0693c9ad015853bd813156c778eb684e2 Mon Sep 17 00:00:00 2001
From: liyang <1909457483@qq.com>
Date: Sun, 19 May 2019 19:46:03 +0800
Subject: [PATCH 1/3] add warnings when the different namespaced modules has
 the same namespace

---
 src/store.js | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/src/store.js b/src/store.js
index a79252b50..2c2315c76 100644
--- a/src/store.js
+++ b/src/store.js
@@ -301,6 +301,13 @@ function installModule (store, rootState, path, module, hot) {
 
   // register in namespace map
   if (module.namespaced) {
+    const existedModule = store._modulesNamespaceMap[namespace]
+    if (existedModule) {
+      if (process.env.NODE_ENV !== 'production') {
+        console.error(`[vuex] duplicate namespace ${namespace} for the namespaced module ${path.join('/')}`)
+      }
+      return
+    }
     store._modulesNamespaceMap[namespace] = module
   }
 

From 6019332da33126c87c6ff3a0ce7becc0dfc02bf5 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E6=9D=8E=E6=B4=8B?= <1909457483@qq.com>
Date: Tue, 21 May 2019 22:49:25 +0800
Subject: [PATCH 2/3] Add warnings when duplicate namespace for different
 namespaced modules

---
 src/store.js | 1 -
 1 file changed, 1 deletion(-)

diff --git a/src/store.js b/src/store.js
index 2c2315c76..a3b70e5ae 100644
--- a/src/store.js
+++ b/src/store.js
@@ -306,7 +306,6 @@ function installModule (store, rootState, path, module, hot) {
       if (process.env.NODE_ENV !== 'production') {
         console.error(`[vuex] duplicate namespace ${namespace} for the namespaced module ${path.join('/')}`)
       }
-      return
     }
     store._modulesNamespaceMap[namespace] = module
   }

From 06ca019e6c27728e8a61b5ccd52faba768ad1c29 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E6=9D=8E=E6=B4=8B?= <1909457483@qq.com>
Date: Wed, 22 May 2019 09:59:08 +0800
Subject: [PATCH 3/3] Add warnings when duplicate namespace, merge if

---
 src/store.js | 7 ++-----
 1 file changed, 2 insertions(+), 5 deletions(-)

diff --git a/src/store.js b/src/store.js
index a3b70e5ae..b32d7b0ad 100644
--- a/src/store.js
+++ b/src/store.js
@@ -301,11 +301,8 @@ function installModule (store, rootState, path, module, hot) {
 
   // register in namespace map
   if (module.namespaced) {
-    const existedModule = store._modulesNamespaceMap[namespace]
-    if (existedModule) {
-      if (process.env.NODE_ENV !== 'production') {
-        console.error(`[vuex] duplicate namespace ${namespace} for the namespaced module ${path.join('/')}`)
-      }
+    if (store._modulesNamespaceMap[namespace] && process.env.NODE_ENV !== 'production') {
+      console.error(`[vuex] duplicate namespace ${namespace} for the namespaced module ${path.join('/')}`)
     }
     store._modulesNamespaceMap[namespace] = module
   }