Function constrainStart

packages/react-stately/src/calendar/utils.ts:97–120

(
  date: CalendarDate,
  aligned: CalendarDate,
  duration: DateDuration,
  locale: string,
  minValue?: DateValue | null,
  maxValue?: DateValue | null
)

}

export function constrainStart(
  date: CalendarDate,
  aligned: CalendarDate,
  duration: DateDuration,
  locale: string,
  minValue?: DateValue | null,
  maxValue?: DateValue | null
): CalendarDate {
  if (minValue && date.compare(minValue) >= 0) {
    let newDate = maxDate(aligned, alignStart(toCalendarDate(minValue), duration, locale));
    if (newDate) {
      aligned = newDate;
    }
  }

  if (maxValue && date.compare(maxValue) <= 0) {
    let newDate = minDate(aligned, alignEnd(toCalendarDate(maxValue), duration, locale));
    if (newDate) {
      aligned = newDate;
    }
  }

  return aligned;
}

export function constrainValue(
  date: CalendarDate,