Function logCaughtError

packages/react-reconciler/src/ReactFiberErrorLogger.js:163–193

(
  root: FiberRoot,
  boundary: Fiber,
  errorInfo: CapturedValue<mixed>,
)

}

export function logCaughtError(
  root: FiberRoot,
  boundary: Fiber,
  errorInfo: CapturedValue<mixed>,
): void {
  try {
    if (__DEV__) {
      componentName = errorInfo.source
        ? getComponentNameFromFiber(errorInfo.source)
        : null;
      errorBoundaryName = getComponentNameFromFiber(boundary);
    }
    const error = (errorInfo.value: any);
    const onCaughtError = root.onCaughtError;
    onCaughtError(error, {
      componentStack: errorInfo.stack,
      errorBoundary:
        boundary.tag === ClassComponent
          ? boundary.stateNode // This should always be the case as long as we only have class boundaries
          : null,
    });
  } catch (e) {
    // This method must not throw, or React internal state will get messed up.
    // If console.error is overridden, or logCapturedError() shows a dialog that throws,
    // we want to report this error outside of the normal stack as a last resort.
    // https://github.com/facebook/react/issues/13188
    setTimeout(() => {
      throw e;
    });
  }
}