Method constructor

packages/localization/src/dates/CalendarDate.ts:8–55

(year?: number | CalendarDate, month?: number | string, date?: number, calendarType?: string)

	_oUDate!: UI5Date | Date | UniversalDate;

	constructor(year?: number | CalendarDate, month?: number | string, date?: number, calendarType?: string) { // eslint-disable-line
		let aArgs = arguments, // eslint-disable-line
			oJSDate: UI5Date | Date,
			oNow: UI5Date | Date,
			sCalendarType!: CalendarType;

		switch (aArgs.length) {
		case 0: // defaults to the current date
			oNow = UI5Date.getInstance();
			return (this.constructor(oNow.getFullYear(), oNow.getMonth(), oNow.getDate()) as CalendarDate);

		case 1: // CalendarDate
		case 2: // CalendarDate, sCalendarType
			if (!(aArgs[0] instanceof CalendarDate)) {
				throw new Error("Invalid arguments: the first argument must be of type CalendarDate.");
			}
			sCalendarType = aArgs[1] ? aArgs[1] : (aArgs[0]._oUDate as UniversalDate).sCalendarType;
			// Use source.valueOf() (returns the same point of time regardless calendar type) instead of
			// source's getters to avoid non-gregorian Year, Month and Date may be used to construct a Gregorian date
			oJSDate = UI5Date.getInstance(aArgs[0].valueOf());

			// Make this date really local. Now getters are safe.
			oJSDate.setFullYear(oJSDate.getUTCFullYear(), oJSDate.getUTCMonth(), oJSDate.getUTCDate());
			oJSDate.setHours(oJSDate.getUTCHours(), oJSDate.getUTCMinutes(), oJSDate.getUTCSeconds(), oJSDate.getUTCMilliseconds());

			this._oUDate = createUniversalUTCDate(oJSDate, sCalendarType);
			break;

		case 3: // year, month, date
		case 4: // year, month, date, sCalendarType
			checkNumericLike(aArgs[0] as number, `Invalid year: ${aArgs[0] as number}`);
			checkNumericLike(aArgs[1] as number, `Invalid month: ${aArgs[1] as number}`);
			checkNumericLike(aArgs[2] as number, `Invalid date: ${aArgs[2] as number}`);

			oJSDate = UI5Date.getInstance(0, 0, 1);
			oJSDate.setFullYear(aArgs[0] as number, aArgs[1] as number, aArgs[2] as number); // 2 digits year is not supported. If so, it is considered as full year as well.

			if (aArgs[3]) {
				sCalendarType = aArgs[3];
			}
			this._oUDate = createUniversalUTCDate(oJSDate, sCalendarType);
			break;

		default:
			throw new Error(`${"Invalid arguments. Accepted arguments are: 1) oCalendarDate, (optional)calendarType"
				+ "or 2) year, month, date, (optional) calendarType"}${aArgs as unknown as string}`);
		}
	}

	getYear() {
		return this._oUDate.getUTCFullYear();