vault backup: 2022-06-28 10:28:53

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

@@ -66,10 +66,26 @@ if (
 如果判断条件为 false，会进入后续判断逻辑
 
 ```javascript
+// props 和 context 都没有发生变化，检查优先级相关
 var hasScheduledUpdateOrContext = checkScheduledUpdateOrContext(current, renderLanes);
+
 if (
 	!hasScheduledUpdateOrContext &&
 	(workInProgress.flags & DidCapture) === NoFlags
+) {
+	didReceiveUpdate = false;
+	return attemptEarlyBailoutIfNoScheduledUpdate(
+			current,
+			workInProgress,
+			renderLanes
+		);
+}
+
+if ((current.flags & ForceUpdateForLegacySuspense) !== NoFlags) {
+	didReceiveUpdate = true;
+} else {
+	didReceiveUpdate = false;
+}
 ```
 
 ### current 为空