From 3f3e42b8cb0fec9ab21fa86281dfd9cd45c6992d Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Sun, 26 May 2019 15:38:55 +0800
Subject: [PATCH] wip: compare perf

---
 packages/runtime-core/src/createRenderer.ts | 4 ++--
 packages/runtime-dom/src/patchProp.ts       | 2 +-
 packages/runtime-dom/src/rendererOptions.ts | 2 +-
 3 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/packages/runtime-core/src/createRenderer.ts b/packages/runtime-core/src/createRenderer.ts
index 74ddf2b3..d700809d 100644
--- a/packages/runtime-core/src/createRenderer.ts
+++ b/packages/runtime-core/src/createRenderer.ts
@@ -193,7 +193,7 @@ export function createRenderer(options: RendererOptions) {
       if (patchFlag & CLASS) {
         // TODO handle full class API, potentially optimize at compilation stage?
         if (oldProps.class !== newProps.class) {
-          el.className = newProps.class
+          hostPatchProp(el, 'class', newProps.class, null, false)
         }
       }
 
@@ -201,7 +201,7 @@ export function createRenderer(options: RendererOptions) {
       // this flag is matched when the element has dynamic style bindings
       // TODO separate static and dynamic styles?
       if (patchFlag & STYLE) {
-        hostPatchProp(el, 'style', oldProps.style, newProps.style, false)
+        hostPatchProp(el, 'style', newProps.style, oldProps.style, false)
       }
 
       // props
diff --git a/packages/runtime-dom/src/patchProp.ts b/packages/runtime-dom/src/patchProp.ts
index 98c5b5a5..56a3a2e9 100644
--- a/packages/runtime-dom/src/patchProp.ts
+++ b/packages/runtime-dom/src/patchProp.ts
@@ -9,8 +9,8 @@ import { VNode } from '@vue/runtime-core'
 export function patchProp(
   el: Element,
   key: string,
-  prevValue: any,
   nextValue: any,
+  prevValue: any,
   isSVG: boolean,
   prevChildren?: VNode[],
   unmountChildren?: any
diff --git a/packages/runtime-dom/src/rendererOptions.ts b/packages/runtime-dom/src/rendererOptions.ts
index e71a72ce..05757a9c 100644
--- a/packages/runtime-dom/src/rendererOptions.ts
+++ b/packages/runtime-dom/src/rendererOptions.ts
@@ -6,7 +6,7 @@ const svgNS = 'http://www.w3.org/2000/svg'
 export const DOMRendererOptions: RendererOptions = {
   patchProp,
 
-  insert: (parent: Node, child: Node, anchor?: Node) => {
+  insert: (child: Node, parent: Node, anchor?: Node) => {
     if (anchor != null) {
       parent.insertBefore(child, anchor)
     } else {