From e7e3eb8662f6f0161a67922be4055cf56ab8fa44 Mon Sep 17 00:00:00 2001
From: Dmitry Sharshakov <d3dx12.xx@gmail.com>
Date: Mon, 28 Oct 2019 03:54:54 +0300
Subject: [PATCH] refactor(VNode): improve helper types (#392)

---
 packages/runtime-core/src/vnode.ts | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/packages/runtime-core/src/vnode.ts b/packages/runtime-core/src/vnode.ts
index 98cdc021..25e80821 100644
--- a/packages/runtime-core/src/vnode.ts
+++ b/packages/runtime-core/src/vnode.ts
@@ -232,7 +232,10 @@ export function createVNode(
   return vnode
 }
 
-export function cloneVNode(vnode: VNode, extraProps?: Data): VNode {
+export function cloneVNode<T, U>(
+  vnode: VNode<T, U>,
+  extraProps?: Data
+): VNode<T, U> {
   // This is intentionally NOT using spread or extend to avoid the runtime
   // key enumeration cost.
   return {
@@ -279,7 +282,7 @@ export function createCommentVNode(
     : createVNode(Comment, null, text)
 }
 
-export function normalizeVNode(child: VNodeChild): VNode {
+export function normalizeVNode<T, U>(child: VNodeChild<T, U>): VNode<T, U> {
   if (child == null) {
     // empty placeholder
     return createVNode(Comment)