From 65033cec9db46573b804c4372ad2be29c5d338ce Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Thu, 4 Oct 2018 16:35:07 -0400
Subject: [PATCH] feat: expose __vue__ in dev mode

---
 packages/core/src/createRenderer.ts | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/packages/core/src/createRenderer.ts b/packages/core/src/createRenderer.ts
index aee6bd1c..c42a217a 100644
--- a/packages/core/src/createRenderer.ts
+++ b/packages/core/src/createRenderer.ts
@@ -1200,6 +1200,10 @@ export function createRenderer(options: RendererOptions) {
           instance.$vnode = renderInstanceRoot(instance) as MountedVNode
           mount(instance.$vnode, container, instance, isSVG, endNode)
           parentVNode.el = instance.$vnode.el
+          if (__DEV__) {
+            // expose __vue__ for devtools
+            ;(parentVNode.el as any).__vue__ = instance
+          }
           instance._mounted = true
           mountComponentInstanceCallbacks(instance, parentVNode.ref)
         }
@@ -1242,6 +1246,11 @@ export function createRenderer(options: RendererOptions) {
     patch(prevVNode, nextVNode, container, instance, isSVG)
     const el = nextVNode.el as RenderNode
 
+    if (__DEV__) {
+      // expose __vue__ for devtools
+      ;(el as any).__vue__ = instance
+    }
+
     // recursively update parentVNode el for nested HOCs
     if ((nextVNode.flags & VNodeFlags.PORTAL) === 0) {
       let vnode = instance.$parentVNode