ReactDOMRoot类

function ReactDOMRoot(internalRoot) {
  this._internalRoot = internalRoot;
}

ReactDOMRoot.prototype.render =
  function (children) {
    var root = this._internalRoot;
    if (null === root) throw Error(formatProdErrorMessage(409));
    var current = root.current,
      lane = requestUpdateLane();
    updateContainerImpl(current, lane, children, root, null, null);
};

ReactDOMRoot.prototype.unmount =
  function () {
    var root = this._internalRoot;
    if (null !== root) {
      this._internalRoot = null;
      var container = root.containerInfo;
      updateContainerImpl(root.current, 2, null, root, null, null);
      flushSyncWork$1();
      container[internalContainerInstanceKey] = null;
    }
};

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function requestUpdateLane() {
  return 0 !== (executionContext & 2) && 0 !== workInProgressRootRenderLanes
    ? workInProgressRootRenderLanes & -workInProgressRootRenderLanes
    : null !== ReactSharedInternals.T
      ? requestTransitionLane()
      : resolveUpdatePriority();
}

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编辑

上次更新: 2026/01/20, 09:26:42