From bed9c39b8026fa7c8a94601e90df2d3cf3b86fe1 Mon Sep 17 00:00:00 2001
From: kazuya kawaguchi <kawakazu80@gmail.com>
Date: Mon, 14 Jan 2019 09:09:53 +0900
Subject: [PATCH] :bug: bug(index): fix flat path based key issue

closes #349
---
 src/index.js               | 5 ++++-
 test/unit/fixture/index.js | 6 ++++--
 test/unit/issues.test.js   | 7 +++++++
 3 files changed, 15 insertions(+), 3 deletions(-)

diff --git a/src/index.js b/src/index.js
index bfbee4e26..570a92447 100644
--- a/src/index.js
+++ b/src/index.js
@@ -101,7 +101,10 @@ export default class VueI18n {
 
     this._exist = (message: Object, key: Path): boolean => {
       if (!message || !key) { return false }
-      return !isNull(this._path.getPathValue(message, key))
+      if (this._path.getPathValue(message, key)) { return true }
+      // fallback for flat key
+      if (message[key]) { return true }
+      return false
     }
 
     this._initVM({
diff --git a/test/unit/fixture/index.js b/test/unit/fixture/index.js
index 6e12dc185..949863ee8 100644
--- a/test/unit/fixture/index.js
+++ b/test/unit/fixture/index.js
@@ -61,7 +61,8 @@ export default {
     ],
     issues: {
       arrayBugs: ['bug1', 'bug2']
-    }
+    },
+    'foo.bar.buz': 'hello flat key!'
   },
   ja: {
     message: {
@@ -101,6 +102,7 @@ export default {
     ],
     issues: {
       arrayBugs: ['バグ1', 'バグ2']
-    }
+    },
+    'foo.bar.buz': 'こんにちは、フラットなキーさん！'
   }
 }
diff --git a/test/unit/issues.test.js b/test/unit/issues.test.js
index 5fd2e9a0c..55effc762 100644
--- a/test/unit/issues.test.js
+++ b/test/unit/issues.test.js
@@ -319,6 +319,13 @@ describe('issues', () => {
     })
   })
 
+  describe('#349', () => {
+    it('should be existed', done => {
+      assert(vm.$te('foo.bar.buz') === true)
+      done()
+    })
+  })
+
   describe('#377', () => {
     it('should be destroyed', done => {
       const el = document.createElement('div')