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fiber树构造(对比更新) -> 过程图解 -> performUnitOfWork第 4 次调用(执行beginWork和completeUnitOfWork) #107

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Xi-yu opened this issue Feb 27, 2023 · 0 comments
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fiber树构造(对比更新) -> 过程图解 -> performUnitOfWork第 4 次调用(执行beginWork和completeUnitOfWork) #107

Xi-yu opened this issue Feb 27, 2023 · 0 comments

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@Xi-yu
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Xi-yu commented Feb 27, 2023

【beginWork执行过程: 调用updateHostComponent】这里的逻辑是不是错误的呢？
根据上文的逻辑，这里current!==null，应该对比优先级判断当前fiber节点不需要更新
接着调用bailoutOnAlreadyFinishedWork函数，继续判断子节点是否需要更新
!includesSomeLane(renderLane, workInProgress.childLanes)返回true，子节点不需要更新，返回null
进入completeUnitOfWork函数
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