192 lines
8.7 KiB
TypeScript
192 lines
8.7 KiB
TypeScript
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import * as ES from './ecmascript';
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import { MakeIntrinsicClass } from './intrinsicclass';
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import { ISO_YEAR, ISO_MONTH, ISO_DAY, CALENDAR, GetSlot } from './slots';
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import type { Temporal } from '..';
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import { DateTimeFormat } from './intl';
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import type { PlainYearMonthParams as Params, PlainYearMonthReturn as Return } from './internaltypes';
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const ObjectCreate = Object.create;
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export class PlainYearMonth implements Temporal.PlainYearMonth {
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constructor(
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isoYearParam: Params['constructor'][0],
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isoMonthParam: Params['constructor'][1],
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calendarParam: Params['constructor'][2] = 'iso8601',
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referenceISODayParam: Params['constructor'][3] = 1
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) {
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const isoYear = ES.ToIntegerWithTruncation(isoYearParam);
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const isoMonth = ES.ToIntegerWithTruncation(isoMonthParam);
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const calendar = ES.ToTemporalCalendarSlotValue(calendarParam);
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const referenceISODay = ES.ToIntegerWithTruncation(referenceISODayParam);
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ES.CreateTemporalYearMonthSlots(this, isoYear, isoMonth, calendar, referenceISODay);
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}
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get year(): Return['year'] {
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if (!ES.IsTemporalYearMonth(this)) throw new TypeError('invalid receiver');
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return ES.CalendarYear(GetSlot(this, CALENDAR), this);
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}
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get month(): Return['month'] {
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if (!ES.IsTemporalYearMonth(this)) throw new TypeError('invalid receiver');
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return ES.CalendarMonth(GetSlot(this, CALENDAR), this);
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}
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get monthCode(): Return['monthCode'] {
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if (!ES.IsTemporalYearMonth(this)) throw new TypeError('invalid receiver');
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return ES.CalendarMonthCode(GetSlot(this, CALENDAR), this);
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}
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get calendarId(): Return['calendarId'] {
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if (!ES.IsTemporalYearMonth(this)) throw new TypeError('invalid receiver');
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return ES.ToTemporalCalendarIdentifier(GetSlot(this, CALENDAR));
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}
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get era(): Return['era'] {
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if (!ES.IsTemporalYearMonth(this)) throw new TypeError('invalid receiver');
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return ES.CalendarEra(GetSlot(this, CALENDAR), this);
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}
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get eraYear(): Return['eraYear'] {
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if (!ES.IsTemporalYearMonth(this)) throw new TypeError('invalid receiver');
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return ES.CalendarEraYear(GetSlot(this, CALENDAR), this);
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}
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get daysInMonth(): Return['daysInMonth'] {
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if (!ES.IsTemporalYearMonth(this)) throw new TypeError('invalid receiver');
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return ES.CalendarDaysInMonth(GetSlot(this, CALENDAR), this);
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}
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get daysInYear(): Return['daysInYear'] {
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if (!ES.IsTemporalYearMonth(this)) throw new TypeError('invalid receiver');
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return ES.CalendarDaysInYear(GetSlot(this, CALENDAR), this);
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}
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get monthsInYear(): Return['monthsInYear'] {
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if (!ES.IsTemporalYearMonth(this)) throw new TypeError('invalid receiver');
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return ES.CalendarMonthsInYear(GetSlot(this, CALENDAR), this);
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}
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get inLeapYear(): Return['inLeapYear'] {
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if (!ES.IsTemporalYearMonth(this)) throw new TypeError('invalid receiver');
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return ES.CalendarInLeapYear(GetSlot(this, CALENDAR), this);
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}
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with(temporalYearMonthLike: Params['with'][0], optionsParam: Params['with'][1] = undefined): Return['with'] {
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if (!ES.IsTemporalYearMonth(this)) throw new TypeError('invalid receiver');
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if (!ES.IsObject(temporalYearMonthLike)) {
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throw new TypeError('invalid argument');
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}
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ES.RejectTemporalLikeObject(temporalYearMonthLike);
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const options = ES.GetOptionsObject(optionsParam);
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const calendar = GetSlot(this, CALENDAR);
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const fieldNames = ES.CalendarFields(calendar, ['month', 'monthCode', 'year'] as const);
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let fields = ES.PrepareTemporalFields(this, fieldNames, []);
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const partialYearMonth = ES.PrepareTemporalFields(temporalYearMonthLike, fieldNames, 'partial');
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fields = ES.CalendarMergeFields(calendar, fields, partialYearMonth);
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fields = ES.PrepareTemporalFields(fields, fieldNames, []);
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return ES.CalendarYearMonthFromFields(calendar, fields, options);
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}
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add(temporalDurationLike: Params['add'][0], options: Params['add'][1] = undefined): Return['add'] {
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if (!ES.IsTemporalYearMonth(this)) throw new TypeError('invalid receiver');
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return ES.AddDurationToOrSubtractDurationFromPlainYearMonth('add', this, temporalDurationLike, options);
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}
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subtract(
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temporalDurationLike: Params['subtract'][0],
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options: Params['subtract'][1] = undefined
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): Return['subtract'] {
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if (!ES.IsTemporalYearMonth(this)) throw new TypeError('invalid receiver');
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return ES.AddDurationToOrSubtractDurationFromPlainYearMonth('subtract', this, temporalDurationLike, options);
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}
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until(other: Params['until'][0], options: Params['until'][1] = undefined): Return['until'] {
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if (!ES.IsTemporalYearMonth(this)) throw new TypeError('invalid receiver');
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return ES.DifferenceTemporalPlainYearMonth('until', this, other, options);
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}
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since(other: Params['since'][0], options: Params['since'][1] = undefined): Return['since'] {
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if (!ES.IsTemporalYearMonth(this)) throw new TypeError('invalid receiver');
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return ES.DifferenceTemporalPlainYearMonth('since', this, other, options);
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}
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equals(otherParam: Params['equals'][0]): Return['equals'] {
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if (!ES.IsTemporalYearMonth(this)) throw new TypeError('invalid receiver');
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const other = ES.ToTemporalYearMonth(otherParam);
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for (const slot of [ISO_YEAR, ISO_MONTH, ISO_DAY]) {
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const val1 = GetSlot(this, slot);
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const val2 = GetSlot(other, slot);
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if (val1 !== val2) return false;
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}
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return ES.CalendarEquals(GetSlot(this, CALENDAR), GetSlot(other, CALENDAR));
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}
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toString(optionsParam: Params['toString'][0] = undefined): string {
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if (!ES.IsTemporalYearMonth(this)) throw new TypeError('invalid receiver');
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const options = ES.GetOptionsObject(optionsParam);
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const showCalendar = ES.ToCalendarNameOption(options);
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return ES.TemporalYearMonthToString(this, showCalendar);
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}
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toJSON(): Return['toJSON'] {
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if (!ES.IsTemporalYearMonth(this)) throw new TypeError('invalid receiver');
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return ES.TemporalYearMonthToString(this);
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}
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toLocaleString(
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locales: Params['toLocaleString'][0] = undefined,
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options: Params['toLocaleString'][1] = undefined
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): string {
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if (!ES.IsTemporalYearMonth(this)) throw new TypeError('invalid receiver');
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return new DateTimeFormat(locales, options).format(this);
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}
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valueOf(): never {
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throw new TypeError('use compare() or equals() to compare Temporal.PlainYearMonth');
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}
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toPlainDate(item: Params['toPlainDate'][0]): Return['toPlainDate'] {
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if (!ES.IsTemporalYearMonth(this)) throw new TypeError('invalid receiver');
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if (!ES.IsObject(item)) throw new TypeError('argument should be an object');
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const calendar = GetSlot(this, CALENDAR);
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const receiverFieldNames = ES.CalendarFields(calendar, ['monthCode', 'year'] as const);
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const fields = ES.PrepareTemporalFields(this, receiverFieldNames, []);
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const inputFieldNames = ES.CalendarFields(calendar, ['day'] as const);
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const inputFields = ES.PrepareTemporalFields(item, inputFieldNames, []);
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let mergedFields = ES.CalendarMergeFields(calendar, fields, inputFields);
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// TODO: Use MergeLists abstract operation.
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const mergedFieldNames = [...new Set([...receiverFieldNames, ...inputFieldNames])];
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mergedFields = ES.PrepareTemporalFields(mergedFields, mergedFieldNames, []);
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const options = ObjectCreate(null);
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options.overflow = 'reject';
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return ES.CalendarDateFromFields(calendar, mergedFields, options);
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}
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getISOFields(): Return['getISOFields'] {
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if (!ES.IsTemporalYearMonth(this)) throw new TypeError('invalid receiver');
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return {
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calendar: GetSlot(this, CALENDAR),
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isoDay: GetSlot(this, ISO_DAY),
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isoMonth: GetSlot(this, ISO_MONTH),
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isoYear: GetSlot(this, ISO_YEAR)
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};
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}
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getCalendar(): Return['getCalendar'] {
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if (!ES.IsTemporalYearMonth(this)) throw new TypeError('invalid receiver');
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return ES.ToTemporalCalendarObject(GetSlot(this, CALENDAR));
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}
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static from(item: Params['from'][0], optionsParam: Params['from'][1] = undefined): Return['from'] {
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const options = ES.GetOptionsObject(optionsParam);
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if (ES.IsTemporalYearMonth(item)) {
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ES.ToTemporalOverflow(options); // validate and ignore
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return ES.CreateTemporalYearMonth(
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GetSlot(item, ISO_YEAR),
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GetSlot(item, ISO_MONTH),
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GetSlot(item, CALENDAR),
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GetSlot(item, ISO_DAY)
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);
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}
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return ES.ToTemporalYearMonth(item, options);
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}
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static compare(oneParam: Params['compare'][0], twoParam: Params['compare'][1]): Return['compare'] {
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const one = ES.ToTemporalYearMonth(oneParam);
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const two = ES.ToTemporalYearMonth(twoParam);
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return ES.CompareISODate(
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GetSlot(one, ISO_YEAR),
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GetSlot(one, ISO_MONTH),
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GetSlot(one, ISO_DAY),
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GetSlot(two, ISO_YEAR),
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GetSlot(two, ISO_MONTH),
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GetSlot(two, ISO_DAY)
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);
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}
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[Symbol.toStringTag]!: 'Temporal.PlainYearMonth';
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}
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MakeIntrinsicClass(PlainYearMonth, 'Temporal.PlainYearMonth');
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