Function nextAfter

src/schedule/cron.ts:115–126

(cron: CronExpression, after: Date)

 * expression can't lock the scheduler.
 */
export function nextAfter(cron: CronExpression, after: Date): Date | null {
  const limit = 60 * 24 * 366 * 2;
  const probe = new Date(after.getTime());
  // Round up to next minute boundary so we don't yield `after` itself.
  probe.setSeconds(0, 0);
  probe.setMinutes(probe.getMinutes() + 1);
  for (let i = 0; i < limit; i++) {
    if (matches(cron, probe)) return probe;
    probe.setMinutes(probe.getMinutes() + 1);
  }
  return null;
}