From 6020105d9e8921e6a7b9d318064f0f1c8b69707f Mon Sep 17 00:00:00 2001
From: YuJian920 <HAO52013141@Gmail.com>
Date: Sun, 8 May 2022 17:03:09 +0800
Subject: [PATCH] vault backup: 2022-05-08 17:03:09

---
 .../React 的流程解析 - Fiber 递归.md   | 19 ++++++++++++++++++-
 1 file changed, 18 insertions(+), 1 deletion(-)

diff --git a/React 的源码深入/React 的流程解析 - Fiber 递归/React 的流程解析 - Fiber 递归.md b/React 的源码深入/React 的流程解析 - Fiber 递归/React 的流程解析 - Fiber 递归.md
index 8abf822..6dac705 100644
--- a/React 的源码深入/React 的流程解析 - Fiber 递归/React 的流程解析 - Fiber 递归.md	
+++ b/React 的源码深入/React 的流程解析 - Fiber 递归/React 的流程解析 - Fiber 递归.md	
@@ -10,7 +10,24 @@ Fiber 递归开始首先会交由 createWorkInProgress 函数生成 WorkInProgre
 
 ```javascript
 function createWorkInProgress(current, pendingProps) {
-
+	if (workInProgress === null) {
+		workInProgress = createFiber(
+			current.tag,
+			pendingProps,
+			current.key,
+			current.mode
+		);
+		// 赋值同名属性
+		workInProgress.elementType = current.elementType;
+	    workInProgress.type = current.type;
+	    workInProgress.stateNode = current.stateNode;
+
+		// 通过 alternate 属性互相链接
+		workInProgress.alternate = current;
+	    current.alternate = workInProgress;
+	}
+
+	......
 }
 ```