Function getSuspendedThenable

packages/react-server/src/ReactFlightThenable.js:145–159

()

// reasons, expects to receive a thenable.
let suspendedThenable: Thenable<any> | null = null;
export function getSuspendedThenable(): Thenable<mixed> {
  // This is called right after `use` suspends by throwing an exception. `use`
  // throws an opaque value instead of the thenable itself so that it can't be
  // caught in userspace. Then the work loop accesses the actual thenable using
  // this function.
  if (suspendedThenable === null) {
    throw new Error(
      'Expected a suspended thenable. This is a bug in React. Please file ' +
        'an issue.',
    );
  }
  const thenable = suspendedThenable;
  suspendedThenable = null;
  return thenable;
}