Function execFunction

packages/jest-worker/src/workers/processChild.ts:200–222

(
  fn: UnknownFunction,
  ctx: unknown,
  args: Array<unknown>,
  onResult: (result: unknown) => void,
  onError: (error: Error) => void,
)

}

function execFunction(
  fn: UnknownFunction,
  ctx: unknown,
  args: Array<unknown>,
  onResult: (result: unknown) => void,
  onError: (error: Error) => void,
): void {
  let result: unknown;

  try {
    result = fn.apply(ctx, args);
  } catch (error: any) {
    onError(error);

    return;
  }

  if (isPromise(result)) {
    result.then(onResult, onError);
  } else {
    onResult(result);
  }
}