vault backup: 2022-06-28 11:48:53

React 的深入探索/React 的流程解析 - Fiber 递归/React 的深入探索 - beginWork.md

@@ -106,7 +106,16 @@ if ((current.flags & ForceUpdateForLegacySuspense) !== NoFlags) {
 
 ### current 为空
 
-didReceiveUpdate 赋值为 false
+首先 didReceiveUpdate 会被赋值为 false
+
+```javascript
+didReceiveUpdate = false;
+if (getIsHydrating() && isForkedChild(workInProgress)) {
+	var slotIndex = workInProgress.index;
+	var numberOfForks = getForksAtLevel();
+	pushTreeId(workInProgress, numberOfForks, slotIndex);
+}
+```
 
 ## 正式 beginWork 阶段