Function initializeClassErrorUpdate

docs/index.js:8736–8761

(update, root, fiber, errorInfo)

  return lane;
}
function initializeClassErrorUpdate(update, root, fiber, errorInfo) {
  var getDerivedStateFromError = fiber.type.getDerivedStateFromError;
  if ("function" === typeof getDerivedStateFromError) {
    var error = errorInfo.value;
    update.payload = function () {
      return getDerivedStateFromError(error);
    };
    update.callback = function () {
      logCaughtError(root, fiber, errorInfo);
    };
  }
  var inst = fiber.stateNode;
  null !== inst &&
    "function" === typeof inst.componentDidCatch &&
    (update.callback = function () {
      logCaughtError(root, fiber, errorInfo);
      "function" !== typeof getDerivedStateFromError &&
        (null === legacyErrorBoundariesThatAlreadyFailed
          ? (legacyErrorBoundariesThatAlreadyFailed = new Set([this]))
          : legacyErrorBoundariesThatAlreadyFailed.add(this));
      var stack = errorInfo.stack;
      this.componentDidCatch(errorInfo.value, {
        componentStack: null !== stack ? stack : ""
      });
    });
}
function throwException(
  root,
  returnFiber,