Function resolveLazy

packages/react-reconciler/src/ReactFiberThenable.js:297–316

(lazyType: LazyComponentType<T, any>)

}

export function resolveLazy<T>(lazyType: LazyComponentType<T, any>): T {
  try {
    if (__DEV__) {
      return callLazyInitInDEV(lazyType);
    }
    const payload = lazyType._payload;
    const init = lazyType._init;
    return init(payload);
  } catch (x) {
    if (x !== null && typeof x === 'object' && typeof x.then === 'function') {
      // This lazy Suspended. Treat this as if we called use() to unwrap it.
      suspendedThenable = x;
      if (__DEV__) {
        needsToResetSuspendedThenableDEV = true;
      }
      throw SuspenseException;
    }
    throw x;
  }
}

// This is used to track the actual thenable that suspended so it can be
// passed to the rest of the Suspense implementation — which, for historical