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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*-
* vim: set ts=8 sts=2 et sw=2 tw=80:
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
#include "builtin/temporal/PlainYearMonth.h"
#include "mozilla/Assertions.h"
#include <type_traits>
#include <utility>
#include "jsnum.h"
#include "jspubtd.h"
#include "NamespaceImports.h"
#include "builtin/temporal/Calendar.h"
#include "builtin/temporal/Duration.h"
#include "builtin/temporal/PlainDate.h"
#include "builtin/temporal/Temporal.h"
#include "builtin/temporal/TemporalFields.h"
#include "builtin/temporal/TemporalParser.h"
#include "builtin/temporal/TemporalRoundingMode.h"
#include "builtin/temporal/TemporalTypes.h"
#include "builtin/temporal/TemporalUnit.h"
#include "builtin/temporal/ToString.h"
#include "builtin/temporal/Wrapped.h"
#include "ds/IdValuePair.h"
#include "gc/AllocKind.h"
#include "gc/Barrier.h"
#include "js/AllocPolicy.h"
#include "js/CallArgs.h"
#include "js/CallNonGenericMethod.h"
#include "js/Class.h"
#include "js/ErrorReport.h"
#include "js/friend/ErrorMessages.h"
#include "js/GCVector.h"
#include "js/Id.h"
#include "js/PropertyDescriptor.h"
#include "js/PropertySpec.h"
#include "js/RootingAPI.h"
#include "js/TypeDecls.h"
#include "js/Value.h"
#include "vm/BytecodeUtil.h"
#include "vm/GlobalObject.h"
#include "vm/JSAtomState.h"
#include "vm/JSContext.h"
#include "vm/JSObject.h"
#include "vm/ObjectOperations.h"
#include "vm/PlainObject.h"
#include "vm/StringType.h"
#include "vm/JSObject-inl.h"
#include "vm/NativeObject-inl.h"
using namespace js;
using namespace js::temporal;
static inline bool IsPlainYearMonth(Handle<Value> v) {
return v.isObject() && v.toObject().is<PlainYearMonthObject>();
}
/**
* ISOYearMonthWithinLimits ( year, month )
*/
template <typename T>
static bool ISOYearMonthWithinLimits(T year, int32_t month) {
static_assert(std::is_same_v<T, int32_t> || std::is_same_v<T, double>);
// Step 1.
MOZ_ASSERT(IsInteger(year));
MOZ_ASSERT(1 <= month && month <= 12);
// Step 2.
if (year < -271821 || year > 275760) {
return false;
}
// Step 3.
if (year == -271821 && month < 4) {
return false;
}
// Step 4.
if (year == 275760 && month > 9) {
return false;
}
// Step 5.
return true;
}
/**
* CreateTemporalYearMonth ( isoYear, isoMonth, calendar, referenceISODay [ ,
* newTarget ] )
*/
static PlainYearMonthObject* CreateTemporalYearMonth(
JSContext* cx, const CallArgs& args, double isoYear, double isoMonth,
double isoDay, Handle<CalendarValue> calendar) {
MOZ_ASSERT(IsInteger(isoYear));
MOZ_ASSERT(IsInteger(isoMonth));
MOZ_ASSERT(IsInteger(isoDay));
// Step 1.
if (!ThrowIfInvalidISODate(cx, isoYear, isoMonth, isoDay)) {
return nullptr;
}
// FIXME: spec issue - Consider calling ISODateTimeWithinLimits to include
// testing |referenceISODay|?
// Step 2.
if (!ISOYearMonthWithinLimits(isoYear, int32_t(isoMonth))) {
JS_ReportErrorNumberASCII(cx, GetErrorMessage, nullptr,
JSMSG_TEMPORAL_PLAIN_YEAR_MONTH_INVALID);
return nullptr;
}
// Steps 3-4.
Rooted<JSObject*> proto(cx);
if (!GetPrototypeFromBuiltinConstructor(cx, args, JSProto_PlainYearMonth,
&proto)) {
return nullptr;
}
auto* obj = NewObjectWithClassProto<PlainYearMonthObject>(cx, proto);
if (!obj) {
return nullptr;
}
// Step 5.
obj->setFixedSlot(PlainYearMonthObject::ISO_YEAR_SLOT,
Int32Value(int32_t(isoYear)));
// Step 6.
obj->setFixedSlot(PlainYearMonthObject::ISO_MONTH_SLOT,
Int32Value(int32_t(isoMonth)));
// Step 7.
obj->setFixedSlot(PlainYearMonthObject::CALENDAR_SLOT, calendar.toValue());
// Step 8.
obj->setFixedSlot(PlainYearMonthObject::ISO_DAY_SLOT,
Int32Value(int32_t(isoDay)));
// Step 9.
return obj;
}
/**
* CreateTemporalYearMonth ( isoYear, isoMonth, calendar, referenceISODay [ ,
* newTarget ] )
*/
PlainYearMonthObject* js::temporal::CreateTemporalYearMonth(
JSContext* cx, const PlainDate& date, Handle<CalendarValue> calendar) {
const auto& [isoYear, isoMonth, isoDay] = date;
// Step 1.
if (!ThrowIfInvalidISODate(cx, date)) {
return nullptr;
}
// FIXME: spec issue - Consider calling ISODateTimeWithinLimits to include
// testing |referenceISODay|?
// Step 2.
if (!ISOYearMonthWithinLimits(isoYear, isoMonth)) {
JS_ReportErrorNumberASCII(cx, GetErrorMessage, nullptr,
JSMSG_TEMPORAL_PLAIN_YEAR_MONTH_INVALID);
return nullptr;
}
// Steps 3-4.
auto* obj = NewBuiltinClassInstance<PlainYearMonthObject>(cx);
if (!obj) {
return nullptr;
}
// Step 5.
obj->setFixedSlot(PlainYearMonthObject::ISO_YEAR_SLOT, Int32Value(isoYear));
// Step 6.
obj->setFixedSlot(PlainYearMonthObject::ISO_MONTH_SLOT, Int32Value(isoMonth));
// Step 7.
obj->setFixedSlot(PlainYearMonthObject::CALENDAR_SLOT, calendar.toValue());
// Step 8.
obj->setFixedSlot(PlainYearMonthObject::ISO_DAY_SLOT, Int32Value(isoDay));
// Step 9.
return obj;
}
/**
* ToTemporalYearMonth ( item [ , options ] )
*/
static Wrapped<PlainYearMonthObject*> ToTemporalYearMonth(
JSContext* cx, Handle<Value> item,
Handle<JSObject*> maybeOptions = nullptr) {
// Step 1. (Not applicable in our implementation.)
// Step 2.
Rooted<PlainObject*> maybeResolvedOptions(cx);
if (maybeOptions) {
maybeResolvedOptions = SnapshotOwnProperties(cx, maybeOptions);
if (!maybeResolvedOptions) {
return nullptr;
}
}
// Step 3.
if (item.isObject()) {
Rooted<JSObject*> itemObj(cx, &item.toObject());
// Step 3.a.
if (itemObj->canUnwrapAs<PlainYearMonthObject>()) {
return itemObj;
}
// Step 3.b.
Rooted<CalendarValue> calendarValue(cx);
if (!GetTemporalCalendarWithISODefault(cx, itemObj, &calendarValue)) {
return nullptr;
}
// Step 3.c.
Rooted<CalendarRecord> calendar(cx);
if (!CreateCalendarMethodsRecord(cx, calendarValue,
{
CalendarMethod::Fields,
CalendarMethod::YearMonthFromFields,
},
&calendar)) {
return nullptr;
}
// Step 3.d.
JS::RootedVector<PropertyKey> fieldNames(cx);
if (!CalendarFields(cx, calendar,
{CalendarField::Month, CalendarField::MonthCode,
CalendarField::Year},
&fieldNames)) {
return nullptr;
}
// Step 3.e.
Rooted<PlainObject*> fields(cx,
PrepareTemporalFields(cx, itemObj, fieldNames));
if (!fields) {
return nullptr;
}
// Step 3.f.
if (maybeResolvedOptions) {
return temporal::CalendarYearMonthFromFields(cx, calendar, fields,
maybeResolvedOptions);
}
return CalendarYearMonthFromFields(cx, calendar, fields);
}
// Step 4.
if (!item.isString()) {
ReportValueError(cx, JSMSG_UNEXPECTED_TYPE, JSDVG_IGNORE_STACK, item,
nullptr, "not a string");
return nullptr;
}
Rooted<JSString*> string(cx, item.toString());
// Step 5.
PlainDate result;
Rooted<JSString*> calendarString(cx);
if (!ParseTemporalYearMonthString(cx, string, &result, &calendarString)) {
return nullptr;
}
// Steps 6-9.
Rooted<CalendarValue> calendarValue(cx, CalendarValue(cx->names().iso8601));
if (calendarString) {
if (!ToBuiltinCalendar(cx, calendarString, &calendarValue)) {
return nullptr;
}
}
// Step 10.
if (maybeResolvedOptions) {
TemporalOverflow ignored;
if (!ToTemporalOverflow(cx, maybeResolvedOptions, &ignored)) {
return nullptr;
}
}
// Step 11.
Rooted<PlainYearMonthObject*> obj(
cx, CreateTemporalYearMonth(cx, result, calendarValue));
if (!obj) {
return nullptr;
}
// Step 12.
Rooted<CalendarRecord> calendar(cx);
if (!CreateCalendarMethodsRecord(cx, calendarValue,
{
CalendarMethod::YearMonthFromFields,
},
&calendar)) {
return nullptr;
}
// FIXME: spec issue - reorder note to appear directly before
// CalendarYearMonthFromFields
// Steps 13-14.
return CalendarYearMonthFromFields(cx, calendar, obj);
}
/**
* ToTemporalYearMonth ( item [ , options ] )
*/
static bool ToTemporalYearMonth(JSContext* cx, Handle<Value> item,
PlainDate* result) {
auto obj = ToTemporalYearMonth(cx, item);
if (!obj) {
return false;
}
*result = ToPlainDate(&obj.unwrap());
return true;
}
/**
* ToTemporalYearMonth ( item [ , options ] )
*/
static bool ToTemporalYearMonth(JSContext* cx, Handle<Value> item,
PlainDate* result,
MutableHandle<CalendarValue> calendar) {
auto* obj = ToTemporalYearMonth(cx, item).unwrapOrNull();
if (!obj) {
return false;
}
*result = ToPlainDate(obj);
calendar.set(obj->calendar());
return calendar.wrap(cx);
}
/**
* DifferenceTemporalPlainYearMonth ( operation, yearMonth, other, options )
*/
static bool DifferenceTemporalPlainYearMonth(JSContext* cx,
TemporalDifference operation,
const CallArgs& args) {
Rooted<PlainYearMonthObject*> yearMonth(
cx, &args.thisv().toObject().as<PlainYearMonthObject>());
// Step 1. (Not applicable in our implementation.)
// Step 2.
auto otherYearMonth = ToTemporalYearMonth(cx, args.get(0));
if (!otherYearMonth) {
return false;
}
auto* unwrappedOtherYearMonth = &otherYearMonth.unwrap();
auto otherYearMonthDate = ToPlainDate(unwrappedOtherYearMonth);
Rooted<Wrapped<PlainYearMonthObject*>> other(cx, otherYearMonth);
Rooted<CalendarValue> otherCalendar(cx, unwrappedOtherYearMonth->calendar());
if (!otherCalendar.wrap(cx)) {
return false;
}
// Step 3.
Rooted<CalendarValue> calendar(cx, yearMonth->calendar());
// Step 4.
if (!CalendarEqualsOrThrow(cx, calendar, otherCalendar)) {
return false;
}
// Steps 5-6.
DifferenceSettings settings;
Rooted<PlainObject*> resolvedOptions(cx);
if (args.hasDefined(1)) {
Rooted<JSObject*> options(
cx, RequireObjectArg(cx, "options", ToName(operation), args[1]));
if (!options) {
return false;
}
// Step 5.
resolvedOptions = SnapshotOwnProperties(cx, options);
if (!resolvedOptions) {
return false;
}
// Step 6.
if (!GetDifferenceSettings(cx, operation, resolvedOptions,
TemporalUnitGroup::Date, TemporalUnit::Month,
TemporalUnit::Month, TemporalUnit::Year,
&settings)) {
return false;
}
} else {
// Steps 5-6.
settings = {
TemporalUnit::Month,
TemporalUnit::Year,
TemporalRoundingMode::Trunc,
Increment{1},
};
}
// Step 7.
if (ToPlainDate(yearMonth) == otherYearMonthDate) {
auto* obj = CreateTemporalDuration(cx, {});
if (!obj) {
return false;
}
args.rval().setObject(*obj);
return true;
}
// Step 8.
Rooted<CalendarRecord> calendarRec(cx);
if (!CreateCalendarMethodsRecord(cx, calendar,
{
CalendarMethod::DateAdd,
CalendarMethod::DateFromFields,
CalendarMethod::DateUntil,
CalendarMethod::Fields,
},
&calendarRec)) {
return false;
}
// Step 9.
JS::RootedVector<PropertyKey> fieldNames(cx);
if (!CalendarFields(cx, calendarRec,
{CalendarField::MonthCode, CalendarField::Year},
&fieldNames)) {
return false;
}
// Step 10.
Rooted<PlainObject*> thisFields(
cx, PrepareTemporalFields(cx, yearMonth, fieldNames));
if (!thisFields) {
return false;
}
// Step 11.
Value one = Int32Value(1);
auto handleOne = Handle<Value>::fromMarkedLocation(&one);
if (!DefineDataProperty(cx, thisFields, cx->names().day, handleOne)) {
return false;
}
// Step 12.
Rooted<Wrapped<PlainDateObject*>> thisDate(
cx, CalendarDateFromFields(cx, calendarRec, thisFields));
if (!thisDate) {
return false;
}
// Step 13.
Rooted<PlainObject*> otherFields(
cx, PrepareTemporalFields(cx, other, fieldNames));
if (!otherFields) {
return false;
}
// Step 14.
if (!DefineDataProperty(cx, otherFields, cx->names().day, handleOne)) {
return false;
}
// Step 15.
Rooted<Wrapped<PlainDateObject*>> otherDate(
cx, CalendarDateFromFields(cx, calendarRec, otherFields));
if (!otherDate) {
return false;
}
// Steps 16-17.
DateDuration until;
if (resolvedOptions) {
if (!CalendarDateUntil(cx, calendarRec, thisDate, otherDate,
settings.largestUnit, resolvedOptions, &until)) {
return false;
}
} else {
if (!CalendarDateUntil(cx, calendarRec, thisDate, otherDate,
settings.largestUnit, &until)) {
return false;
}
}
// We only care about years and months here, all other fields are set to zero.
auto dateDuration = DateDuration{until.years, until.months};
// Step 18.
if (settings.smallestUnit != TemporalUnit::Month ||
settings.roundingIncrement != Increment{1}) {
// Steps 18.a-b.
NormalizedDuration roundResult;
if (!RoundDuration(cx, {dateDuration, {}}, settings.roundingIncrement,
settings.smallestUnit, settings.roundingMode, thisDate,
calendarRec, &roundResult)) {
return false;
}
// Step 18.c.
auto toBalance =
DateDuration{roundResult.date.years, roundResult.date.months};
if (!temporal::BalanceDateDurationRelative(
cx, toBalance, settings.largestUnit, settings.smallestUnit,
thisDate, calendarRec, &dateDuration)) {
return false;
}
}
// Step 19.
auto duration =
Duration{double(dateDuration.years), double(dateDuration.months)};
if (operation == TemporalDifference::Since) {
duration = duration.negate();
}
auto* obj = CreateTemporalDuration(cx, duration);
if (!obj) {
return false;
}
args.rval().setObject(*obj);
return true;
}
enum class PlainYearMonthDuration { Add, Subtract };
/**
* AddDurationToOrSubtractDurationFromPlainYearMonth ( operation, yearMonth,
* temporalDurationLike, options )
*/
static bool AddDurationToOrSubtractDurationFromPlainYearMonth(
JSContext* cx, PlainYearMonthDuration operation, const CallArgs& args) {
Rooted<PlainYearMonthObject*> yearMonth(
cx, &args.thisv().toObject().as<PlainYearMonthObject>());
// Step 1.
Duration duration;
if (!ToTemporalDurationRecord(cx, args.get(0), &duration)) {
return false;
}
// Step 2.
if (operation == PlainYearMonthDuration::Subtract) {
duration = duration.negate();
}
// Step 3.
Rooted<JSObject*> options(cx);
if (args.hasDefined(1)) {
const char* name =
operation == PlainYearMonthDuration::Add ? "add" : "subtract";
options = RequireObjectArg(cx, "options", name, args[1]);
} else {
// TODO: Avoid creating an options object if not necessary.
options = NewPlainObjectWithProto(cx, nullptr);
}
if (!options) {
return false;
}
// Step 4.
auto timeDuration = NormalizeTimeDuration(duration);
// Step 5.
auto balancedTime = BalanceTimeDuration(timeDuration, TemporalUnit::Day);
// Steps 6 and 16. (Reordered)
auto durationToAdd = DateDuration{
int64_t(duration.years),
int64_t(duration.months),
int64_t(duration.weeks),
int64_t(duration.days) + balancedTime.days,
};
// Step 7.
int32_t sign = DurationSign(durationToAdd);
// Step 8.
Rooted<CalendarValue> calendarValue(cx, yearMonth->calendar());
Rooted<CalendarRecord> calendar(cx);
if (!CreateCalendarMethodsRecord(cx, calendarValue,
{
CalendarMethod::DateAdd,
CalendarMethod::DateFromFields,
CalendarMethod::Day,
CalendarMethod::Fields,
CalendarMethod::YearMonthFromFields,
},
&calendar)) {
return false;
};
// Step 9.
JS::RootedVector<PropertyKey> fieldNames(cx);
if (!CalendarFields(cx, calendar,
{CalendarField::MonthCode, CalendarField::Year},
&fieldNames)) {
return false;
}
// Step 10.
Rooted<PlainObject*> fields(cx,
PrepareTemporalFields(cx, yearMonth, fieldNames));
if (!fields) {
return false;
}
// Step 11.
Rooted<PlainObject*> fieldsCopy(cx, SnapshotOwnProperties(cx, fields));
if (!fieldsCopy) {
return false;
}
// Step 12.
Value one = Int32Value(1);
auto handleOne = Handle<Value>::fromMarkedLocation(&one);
if (!DefineDataProperty(cx, fields, cx->names().day, handleOne)) {
return false;
}
// Step 13.
Rooted<Wrapped<PlainDateObject*>> intermediateDate(
cx, CalendarDateFromFields(cx, calendar, fields));
if (!intermediateDate) {
return false;
}
// Steps 14-15.
Rooted<Wrapped<PlainDateObject*>> date(cx);
if (sign < 0) {
// |intermediateDate| is initialized to the first day of |yearMonth|'s
// month. Compute the last day of |yearMonth|'s month by first adding one
// month and then subtracting one day.
//
// This is roughly equivalent to these calls:
//
// js> var ym = new Temporal.PlainYearMonth(2023, 1);
// js> ym.toPlainDate({day: 1}).add({months: 1}).subtract({days: 1}).day
// 31
//
// For many calendars this is equivalent to `ym.daysInMonth`, except when
// some days are skipped, for example consider the Julian-to-Gregorian
// calendar transition.
// Step 14.a.
auto oneMonthDuration = DateDuration{0, 1};
// Step 14.b.
Rooted<Wrapped<PlainDateObject*>> nextMonth(
cx, CalendarDateAdd(cx, calendar, intermediateDate, oneMonthDuration));
if (!nextMonth) {
return false;
}
auto* unwrappedNextMonth = nextMonth.unwrap(cx);
if (!unwrappedNextMonth) {
return false;
}
auto nextMonthDate = ToPlainDate(unwrappedNextMonth);
// Step 14.c.
auto endOfMonthISO = BalanceISODate(nextMonthDate.year, nextMonthDate.month,
nextMonthDate.day - 1);
// Step 14.d.
Rooted<PlainDateWithCalendar> endOfMonth(cx);
if (!CreateTemporalDate(cx, endOfMonthISO, calendar.receiver(),
&endOfMonth)) {
return false;
}
// Step 14.e.
Rooted<Value> day(cx);
if (!CalendarDay(cx, calendar, endOfMonth.date(), &day)) {
return false;
}
// Step 14.f.
if (!DefineDataProperty(cx, fieldsCopy, cx->names().day, day)) {
return false;
}
// Step 14.g.
date = CalendarDateFromFields(cx, calendar, fieldsCopy);
if (!date) {
return false;
}
} else {
// Step 15.a.
date = intermediateDate;
}
// Step 16. (Moved above)
// Step 17.
Rooted<PlainObject*> optionsCopy(cx, SnapshotOwnProperties(cx, options));
if (!optionsCopy) {
return false;
}
// Step 18.
Rooted<Wrapped<PlainDateObject*>> addedDate(
cx, AddDate(cx, calendar, date, durationToAdd, options));
if (!addedDate) {
return false;
}
// Step 19.
Rooted<PlainObject*> addedDateFields(
cx, PrepareTemporalFields(cx, addedDate, fieldNames));
if (!addedDateFields) {
return false;
}
// Step 20.
auto obj = temporal::CalendarYearMonthFromFields(
cx, calendar, addedDateFields, optionsCopy);
if (!obj) {
return false;
}
args.rval().setObject(*obj);
return true;
}
/**
* Temporal.PlainYearMonth ( isoYear, isoMonth [ , calendarLike [ ,
* referenceISODay ] ] )
*/
static bool PlainYearMonthConstructor(JSContext* cx, unsigned argc, Value* vp) {
CallArgs args = CallArgsFromVp(argc, vp);
// Step 1.
if (!ThrowIfNotConstructing(cx, args, "Temporal.PlainYearMonth")) {
return false;
}
// Step 3.
double isoYear;
if (!ToIntegerWithTruncation(cx, args.get(0), "year", &isoYear)) {
return false;
}
// Step 4.
double isoMonth;
if (!ToIntegerWithTruncation(cx, args.get(1), "month", &isoMonth)) {
return false;
}
// Step 5.
Rooted<CalendarValue> calendar(cx);
if (!ToTemporalCalendarWithISODefault(cx, args.get(2), &calendar)) {
return false;
}
// Steps 2 and 6.
double isoDay = 1;
if (args.hasDefined(3)) {
if (!ToIntegerWithTruncation(cx, args[3], "day", &isoDay)) {
return false;
}
}
// Step 7.
auto* yearMonth =
CreateTemporalYearMonth(cx, args, isoYear, isoMonth, isoDay, calendar);
if (!yearMonth) {
return false;
}
args.rval().setObject(*yearMonth);
return true;
}
/**
* Temporal.PlainYearMonth.from ( item [ , options ] )
*/
static bool PlainYearMonth_from(JSContext* cx, unsigned argc, Value* vp) {
CallArgs args = CallArgsFromVp(argc, vp);
// Step 1.
Rooted<JSObject*> options(cx);
if (args.hasDefined(1)) {
options = RequireObjectArg(cx, "options", "from", args[1]);
if (!options) {
return false;
}
}
// Step 2.
if (args.get(0).isObject()) {
JSObject* item = &args[0].toObject();
if (auto* yearMonth = item->maybeUnwrapIf<PlainYearMonthObject>()) {
auto date = ToPlainDate(yearMonth);
Rooted<CalendarValue> calendar(cx, yearMonth->calendar());
if (!calendar.wrap(cx)) {
return false;
}
if (options) {
// Step 2.a.
TemporalOverflow ignored;
if (!ToTemporalOverflow(cx, options, &ignored)) {
return false;
}
}
// Step 2.b.
auto* obj = CreateTemporalYearMonth(cx, date, calendar);
if (!obj) {
return false;
}
args.rval().setObject(*obj);
return true;
}
}
// Step 3.
auto obj = ToTemporalYearMonth(cx, args.get(0), options);
if (!obj) {
return false;
}
args.rval().setObject(*obj);
return true;
}
/**
* Temporal.PlainYearMonth.compare ( one, two )
*/
static bool PlainYearMonth_compare(JSContext* cx, unsigned argc, Value* vp) {
CallArgs args = CallArgsFromVp(argc, vp);
// Step 1.
PlainDate one;
if (!ToTemporalYearMonth(cx, args.get(0), &one)) {
return false;
}
// Step 2.
PlainDate two;
if (!ToTemporalYearMonth(cx, args.get(1), &two)) {
return false;
}
// Step 3.
args.rval().setInt32(CompareISODate(one, two));
return true;
}
/**
* get Temporal.PlainYearMonth.prototype.calendarId
*/
static bool PlainYearMonth_calendarId(JSContext* cx, const CallArgs& args) {
auto* yearMonth = &args.thisv().toObject().as<PlainYearMonthObject>();
Rooted<CalendarValue> calendar(cx, yearMonth->calendar());
// Step 3.
auto* calendarId = ToTemporalCalendarIdentifier(cx, calendar);
if (!calendarId) {
return false;
}
args.rval().setString(calendarId);
return true;
}
/**
* get Temporal.PlainYearMonth.prototype.calendarId
*/
static bool PlainYearMonth_calendarId(JSContext* cx, unsigned argc, Value* vp) {
// Steps 1-2.
CallArgs args = CallArgsFromVp(argc, vp);
return CallNonGenericMethod<IsPlainYearMonth, PlainYearMonth_calendarId>(
cx, args);
}
/**
* get Temporal.PlainYearMonth.prototype.year
*/
static bool PlainYearMonth_year(JSContext* cx, const CallArgs& args) {
// Step 3.
Rooted<PlainYearMonthObject*> yearMonth(
cx, &args.thisv().toObject().as<PlainYearMonthObject>());
Rooted<CalendarValue> calendar(cx, yearMonth->calendar());
// Step 4.
return CalendarYear(cx, calendar, yearMonth, args.rval());
}
/**
* get Temporal.PlainYearMonth.prototype.year
*/
static bool PlainYearMonth_year(JSContext* cx, unsigned argc, Value* vp) {
// Steps 1-2.
CallArgs args = CallArgsFromVp(argc, vp);
return CallNonGenericMethod<IsPlainYearMonth, PlainYearMonth_year>(cx, args);
}
/**
* get Temporal.PlainYearMonth.prototype.month
*/
static bool PlainYearMonth_month(JSContext* cx, const CallArgs& args) {
// Step 3.
Rooted<PlainYearMonthObject*> yearMonth(
cx, &args.thisv().toObject().as<PlainYearMonthObject>());
Rooted<CalendarValue> calendar(cx, yearMonth->calendar());
// Step 4.
return CalendarMonth(cx, calendar, yearMonth, args.rval());
}
/**
* get Temporal.PlainYearMonth.prototype.month
*/
static bool PlainYearMonth_month(JSContext* cx, unsigned argc, Value* vp) {
// Steps 1-2.
CallArgs args = CallArgsFromVp(argc, vp);
return CallNonGenericMethod<IsPlainYearMonth, PlainYearMonth_month>(cx, args);
}
/**
* get Temporal.PlainYearMonth.prototype.monthCode
*/
static bool PlainYearMonth_monthCode(JSContext* cx, const CallArgs& args) {
// Step 3.
Rooted<PlainYearMonthObject*> yearMonth(
cx, &args.thisv().toObject().as<PlainYearMonthObject>());
Rooted<CalendarValue> calendar(cx, yearMonth->calendar());
// Step 4.
return CalendarMonthCode(cx, calendar, yearMonth, args.rval());
}
/**
* get Temporal.PlainYearMonth.prototype.monthCode
*/
static bool PlainYearMonth_monthCode(JSContext* cx, unsigned argc, Value* vp) {
// Steps 1-2.
CallArgs args = CallArgsFromVp(argc, vp);
return CallNonGenericMethod<IsPlainYearMonth, PlainYearMonth_monthCode>(cx,
args);
}
/**
* get Temporal.PlainYearMonth.prototype.daysInYear
*/
static bool PlainYearMonth_daysInYear(JSContext* cx, const CallArgs& args) {
// Step 3.
Rooted<PlainYearMonthObject*> yearMonth(
cx, &args.thisv().toObject().as<PlainYearMonthObject>());
Rooted<CalendarValue> calendar(cx, yearMonth->calendar());
// Step 4.
return CalendarDaysInYear(cx, calendar, yearMonth, args.rval());
}
/**
* get Temporal.PlainYearMonth.prototype.daysInYear
*/
static bool PlainYearMonth_daysInYear(JSContext* cx, unsigned argc, Value* vp) {
// Steps 1-2.
CallArgs args = CallArgsFromVp(argc, vp);
return CallNonGenericMethod<IsPlainYearMonth, PlainYearMonth_daysInYear>(
cx, args);
}
/**
* get Temporal.PlainYearMonth.prototype.daysInMonth
*/
static bool PlainYearMonth_daysInMonth(JSContext* cx, const CallArgs& args) {
// Step 3.
Rooted<PlainYearMonthObject*> yearMonth(
cx, &args.thisv().toObject().as<PlainYearMonthObject>());
Rooted<CalendarValue> calendar(cx, yearMonth->calendar());
// Step 4.
return CalendarDaysInMonth(cx, calendar, yearMonth, args.rval());
}
/**
* get Temporal.PlainYearMonth.prototype.daysInMonth
*/
static bool PlainYearMonth_daysInMonth(JSContext* cx, unsigned argc,
Value* vp) {
// Steps 1-2.
CallArgs args = CallArgsFromVp(argc, vp);
return CallNonGenericMethod<IsPlainYearMonth, PlainYearMonth_daysInMonth>(
cx, args);
}
/**
* get Temporal.PlainYearMonth.prototype.monthsInYear
*/
static bool PlainYearMonth_monthsInYear(JSContext* cx, const CallArgs& args) {
// Step 3.
Rooted<PlainYearMonthObject*> yearMonth(
cx, &args.thisv().toObject().as<PlainYearMonthObject>());
Rooted<CalendarValue> calendar(cx, yearMonth->calendar());
// Step 4.
return CalendarMonthsInYear(cx, calendar, yearMonth, args.rval());
}
/**
* get Temporal.PlainYearMonth.prototype.monthsInYear
*/
static bool PlainYearMonth_monthsInYear(JSContext* cx, unsigned argc,
Value* vp) {
// Steps 1-2.
CallArgs args = CallArgsFromVp(argc, vp);
return CallNonGenericMethod<IsPlainYearMonth, PlainYearMonth_monthsInYear>(
cx, args);
}
/**
* get Temporal.PlainYearMonth.prototype.inLeapYear
*/
static bool PlainYearMonth_inLeapYear(JSContext* cx, const CallArgs& args) {
// Step 3.
Rooted<PlainYearMonthObject*> yearMonth(
cx, &args.thisv().toObject().as<PlainYearMonthObject>());
Rooted<CalendarValue> calendar(cx, yearMonth->calendar());
// Step 4.
return CalendarInLeapYear(cx, calendar, yearMonth, args.rval());
}
/**
* get Temporal.PlainYearMonth.prototype.inLeapYear
*/
static bool PlainYearMonth_inLeapYear(JSContext* cx, unsigned argc, Value* vp) {
// Steps 1-2.
CallArgs args = CallArgsFromVp(argc, vp);
return CallNonGenericMethod<IsPlainYearMonth, PlainYearMonth_inLeapYear>(
cx, args);
}
/**
* Temporal.PlainYearMonth.prototype.with ( temporalYearMonthLike [ , options ]
* )
*/
static bool PlainYearMonth_with(JSContext* cx, const CallArgs& args) {
Rooted<PlainYearMonthObject*> yearMonth(
cx, &args.thisv().toObject().as<PlainYearMonthObject>());
Rooted<CalendarValue> calendarValue(cx, yearMonth->calendar());
// Step 3.
Rooted<JSObject*> temporalYearMonthLike(
cx, RequireObjectArg(cx, "temporalYearMonthLike", "with", args.get(0)));
if (!temporalYearMonthLike) {
return false;
}
if (!ThrowIfTemporalLikeObject(cx, temporalYearMonthLike)) {
return false;
}
// Step 4.
Rooted<PlainObject*> resolvedOptions(cx);
if (args.hasDefined(1)) {
Rooted<JSObject*> options(cx,
RequireObjectArg(cx, "options", "with", args[1]));
if (!options) {
return false;
}
resolvedOptions = SnapshotOwnProperties(cx, options);
} else {
resolvedOptions = NewPlainObjectWithProto(cx, nullptr);
}
if (!resolvedOptions) {
return false;
}
// Step 5.
Rooted<CalendarRecord> calendar(cx);
if (!CreateCalendarMethodsRecord(cx, calendarValue,
{
CalendarMethod::Fields,
CalendarMethod::MergeFields,
CalendarMethod::YearMonthFromFields,
},
&calendar)) {
return false;
}
// Step 6.
JS::RootedVector<PropertyKey> fieldNames(cx);
if (!CalendarFields(
cx, calendar,
{CalendarField::Month, CalendarField::MonthCode, CalendarField::Year},
&fieldNames)) {
return false;
}
// Step 7.
Rooted<PlainObject*> fields(cx,
PrepareTemporalFields(cx, yearMonth, fieldNames));
if (!fields) {
return false;
}
// Step 8.
Rooted<PlainObject*> partialYearMonth(
cx, PreparePartialTemporalFields(cx, temporalYearMonthLike, fieldNames));
if (!partialYearMonth) {
return false;
}
// Step 9.
Rooted<JSObject*> mergedFields(
cx, CalendarMergeFields(cx, calendar, fields, partialYearMonth));
if (!mergedFields) {
return false;
}
// Step 10.
fields = PrepareTemporalFields(cx, mergedFields, fieldNames);
if (!fields) {
return false;
}
// Step 11.
auto obj = temporal::CalendarYearMonthFromFields(cx, calendar, fields,
resolvedOptions);
if (!obj) {
return false;
}
args.rval().setObject(*obj);
return true;
}
/**
* Temporal.PlainYearMonth.prototype.with ( temporalYearMonthLike [ , options ]
* )
*/
static bool PlainYearMonth_with(JSContext* cx, unsigned argc, Value* vp) {
// Steps 1-2.
CallArgs args = CallArgsFromVp(argc, vp);
return CallNonGenericMethod<IsPlainYearMonth, PlainYearMonth_with>(cx, args);
}
/**
* Temporal.PlainYearMonth.prototype.add ( temporalDurationLike [ , options ] )
*/
static bool PlainYearMonth_add(JSContext* cx, const CallArgs& args) {
// Step 3.
return AddDurationToOrSubtractDurationFromPlainYearMonth(
cx, PlainYearMonthDuration::Add, args);
}
/**
* Temporal.PlainYearMonth.prototype.add ( temporalDurationLike [ , options ] )
*/
static bool PlainYearMonth_add(JSContext* cx, unsigned argc, Value* vp) {
// Steps 1-2.
CallArgs args = CallArgsFromVp(argc, vp);
return CallNonGenericMethod<IsPlainYearMonth, PlainYearMonth_add>(cx, args);
}
/**
* Temporal.PlainYearMonth.prototype.subtract ( temporalDurationLike [ , options
* ] )
*/
static bool PlainYearMonth_subtract(JSContext* cx, const CallArgs& args) {
// Step 3.
return AddDurationToOrSubtractDurationFromPlainYearMonth(
cx, PlainYearMonthDuration::Subtract, args);
}
/**
* Temporal.PlainYearMonth.prototype.subtract ( temporalDurationLike [ , options
* ] )
*/
static bool PlainYearMonth_subtract(JSContext* cx, unsigned argc, Value* vp) {
// Steps 1-2.
CallArgs args = CallArgsFromVp(argc, vp);
return CallNonGenericMethod<IsPlainYearMonth, PlainYearMonth_subtract>(cx,
args);
}
/**
* Temporal.PlainYearMonth.prototype.until ( other [ , options ] )
*/
static bool PlainYearMonth_until(JSContext* cx, const CallArgs& args) {
// Step 3.
return DifferenceTemporalPlainYearMonth(cx, TemporalDifference::Until, args);
}
/**
* Temporal.PlainYearMonth.prototype.until ( other [ , options ] )
*/
static bool PlainYearMonth_until(JSContext* cx, unsigned argc, Value* vp) {
// Steps 1-2.
CallArgs args = CallArgsFromVp(argc, vp);
return CallNonGenericMethod<IsPlainYearMonth, PlainYearMonth_until>(cx, args);
}
/**
* Temporal.PlainYearMonth.prototype.since ( other [ , options ] )
*/
static bool PlainYearMonth_since(JSContext* cx, const CallArgs& args) {
// Step 3.
return DifferenceTemporalPlainYearMonth(cx, TemporalDifference::Since, args);
}
/**
* Temporal.PlainYearMonth.prototype.since ( other [ , options ] )
*/
static bool PlainYearMonth_since(JSContext* cx, unsigned argc, Value* vp) {
// Steps 1-2.
CallArgs args = CallArgsFromVp(argc, vp);
return CallNonGenericMethod<IsPlainYearMonth, PlainYearMonth_since>(cx, args);
}
/**
* Temporal.PlainYearMonth.prototype.equals ( other )
*/
static bool PlainYearMonth_equals(JSContext* cx, const CallArgs& args) {
auto* yearMonth = &args.thisv().toObject().as<PlainYearMonthObject>();
auto date = ToPlainDate(yearMonth);
Rooted<CalendarValue> calendar(cx, yearMonth->calendar());
// Step 3.
PlainDate other;
Rooted<CalendarValue> otherCalendar(cx);
if (!ToTemporalYearMonth(cx, args.get(0), &other, &otherCalendar)) {
return false;
}
// Steps 4-7.
bool equals = date == other;
if (equals && !CalendarEquals(cx, calendar, otherCalendar, &equals)) {
return false;
}
args.rval().setBoolean(equals);
return true;
}
/**
* Temporal.PlainYearMonth.prototype.equals ( other )
*/
static bool PlainYearMonth_equals(JSContext* cx, unsigned argc, Value* vp) {
// Steps 1-2.
CallArgs args = CallArgsFromVp(argc, vp);
return CallNonGenericMethod<IsPlainYearMonth, PlainYearMonth_equals>(cx,
args);
}
/**
* Temporal.PlainYearMonth.prototype.toString ( [ options ] )
*/
static bool PlainYearMonth_toString(JSContext* cx, const CallArgs& args) {
Rooted<PlainYearMonthObject*> yearMonth(
cx, &args.thisv().toObject().as<PlainYearMonthObject>());
auto showCalendar = CalendarOption::Auto;
if (args.hasDefined(0)) {
// Step 3.
Rooted<JSObject*> options(
cx, RequireObjectArg(cx, "options", "toString", args[0]));
if (!options) {
return false;
}
// Step 4.
if (!ToCalendarNameOption(cx, options, &showCalendar)) {
return false;
}
}
// Step 5.
JSString* str = TemporalYearMonthToString(cx, yearMonth, showCalendar);
if (!str) {
return false;
}
args.rval().setString(str);
return true;
}
/**
* Temporal.PlainYearMonth.prototype.toString ( [ options ] )
*/
static bool PlainYearMonth_toString(JSContext* cx, unsigned argc, Value* vp) {
// Steps 1-2.
CallArgs args = CallArgsFromVp(argc, vp);
return CallNonGenericMethod<IsPlainYearMonth, PlainYearMonth_toString>(cx,
args);
}
/**
* Temporal.PlainYearMonth.prototype.toLocaleString ( [ locales [ , options ] ]
* )
*/
static bool PlainYearMonth_toLocaleString(JSContext* cx, const CallArgs& args) {
Rooted<PlainYearMonthObject*> yearMonth(
cx, &args.thisv().toObject().as<PlainYearMonthObject>());
// Step 3.
JSString* str =
TemporalYearMonthToString(cx, yearMonth, CalendarOption::Auto);
if (!str) {
return false;
}
args.rval().setString(str);
return true;
}
/**
* Temporal.PlainYearMonth.prototype.toLocaleString ( [ locales [ , options ] ]
* )
*/
static bool PlainYearMonth_toLocaleString(JSContext* cx, unsigned argc,
Value* vp) {
// Steps 1-2.
CallArgs args = CallArgsFromVp(argc, vp);
return CallNonGenericMethod<IsPlainYearMonth, PlainYearMonth_toLocaleString>(
cx, args);
}
/**
* Temporal.PlainYearMonth.prototype.toJSON ( )
*/
static bool PlainYearMonth_toJSON(JSContext* cx, const CallArgs& args) {
Rooted<PlainYearMonthObject*> yearMonth(
cx, &args.thisv().toObject().as<PlainYearMonthObject>());
// Step 3.
JSString* str =
TemporalYearMonthToString(cx, yearMonth, CalendarOption::Auto);
if (!str) {
return false;
}
args.rval().setString(str);
return true;
}
/**
* Temporal.PlainYearMonth.prototype.toJSON ( )
*/
static bool PlainYearMonth_toJSON(JSContext* cx, unsigned argc, Value* vp) {
// Steps 1-2.
CallArgs args = CallArgsFromVp(argc, vp);
return CallNonGenericMethod<IsPlainYearMonth, PlainYearMonth_toJSON>(cx,
args);
}
/**
* Temporal.PlainYearMonth.prototype.valueOf ( )
*/
static bool PlainYearMonth_valueOf(JSContext* cx, unsigned argc, Value* vp) {
JS_ReportErrorNumberASCII(cx, GetErrorMessage, nullptr, JSMSG_CANT_CONVERT_TO,
"PlainYearMonth", "primitive type");
return false;
}
/**
* Temporal.PlainYearMonth.prototype.toPlainDate ( item )
*/
static bool PlainYearMonth_toPlainDate(JSContext* cx, const CallArgs& args) {
Rooted<PlainYearMonthObject*> yearMonth(
cx, &args.thisv().toObject().as<PlainYearMonthObject>());
// Step 3.
Rooted<JSObject*> item(
cx, RequireObjectArg(cx, "item", "toPlainDate", args.get(0)));
if (!item) {
return false;
}
// Step 4.
Rooted<CalendarValue> calendarValue(cx, yearMonth->calendar());
Rooted<CalendarRecord> calendar(cx);
if (!CreateCalendarMethodsRecord(cx, calendarValue,
{
CalendarMethod::DateFromFields,
CalendarMethod::Fields,
CalendarMethod::MergeFields,
},
&calendar)) {
return false;
}
// Step 5.
JS::RootedVector<PropertyKey> receiverFieldNames(cx);
if (!CalendarFields(cx, calendar,
{CalendarField::MonthCode, CalendarField::Year},
&receiverFieldNames)) {
return false;
}
// Step 6.
Rooted<PlainObject*> fields(
cx, PrepareTemporalFields(cx, yearMonth, receiverFieldNames));
if (!fields) {
return false;
}
// Step 7.
JS::RootedVector<PropertyKey> inputFieldNames(cx);
if (!CalendarFields(cx, calendar, {CalendarField::Day}, &inputFieldNames)) {
return false;
}
// Step 8.
Rooted<PlainObject*> inputFields(
cx, PrepareTemporalFields(cx, item, inputFieldNames));
if (!inputFields) {
return false;
}
// Step 9.
Rooted<JSObject*> mergedFields(
cx, CalendarMergeFields(cx, calendar, fields, inputFields));
if (!mergedFields) {
return false;
}
// Step 10.
JS::RootedVector<PropertyKey> concatenatedFieldNames(cx);
if (!ConcatTemporalFieldNames(receiverFieldNames, inputFieldNames,
concatenatedFieldNames.get())) {
return false;
}
// Step 11.
Rooted<PlainObject*> mergedFromConcatenatedFields(
cx, PrepareTemporalFields(cx, mergedFields, concatenatedFieldNames));
if (!mergedFromConcatenatedFields) {
return false;
}
// Step 12.
auto obj = CalendarDateFromFields(cx, calendar, mergedFromConcatenatedFields);
if (!obj) {
return false;
}
args.rval().setObject(*obj);
return true;
}
/**
* Temporal.PlainYearMonth.prototype.toPlainDate ( item )
*/
static bool PlainYearMonth_toPlainDate(JSContext* cx, unsigned argc,
Value* vp) {
// Steps 1-2.
CallArgs args = CallArgsFromVp(argc, vp);
return CallNonGenericMethod<IsPlainYearMonth, PlainYearMonth_toPlainDate>(
cx, args);
}
/**
* Temporal.PlainYearMonth.prototype.getISOFields ( )
*/
static bool PlainYearMonth_getISOFields(JSContext* cx, const CallArgs& args) {
Rooted<PlainYearMonthObject*> yearMonth(
cx, &args.thisv().toObject().as<PlainYearMonthObject>());
// Step 3.
Rooted<IdValueVector> fields(cx, IdValueVector(cx));
// Step 4.
if (!fields.emplaceBack(NameToId(cx->names().calendar),
yearMonth->calendar().toValue())) {
return false;
}
// Step 5.
if (!fields.emplaceBack(NameToId(cx->names().isoDay),
Int32Value(yearMonth->isoDay()))) {
return false;
}
// Step 6.
if (!fields.emplaceBack(NameToId(cx->names().isoMonth),
Int32Value(yearMonth->isoMonth()))) {
return false;
}
// Step 7.
if (!fields.emplaceBack(NameToId(cx->names().isoYear),
Int32Value(yearMonth->isoYear()))) {
return false;
}
// Step 8.
auto* obj = NewPlainObjectWithUniqueNames(cx, fields);
if (!obj) {
return false;
}
args.rval().setObject(*obj);
return true;
}
/**
* Temporal.PlainYearMonth.prototype.getISOFields ( )
*/
static bool PlainYearMonth_getISOFields(JSContext* cx, unsigned argc,
Value* vp) {
// Steps 1-2.
CallArgs args = CallArgsFromVp(argc, vp);
return CallNonGenericMethod<IsPlainYearMonth, PlainYearMonth_getISOFields>(
cx, args);
}
/**
* Temporal.PlainYearMonth.prototype.getCalendar ( )
*/
static bool PlainYearMonth_getCalendar(JSContext* cx, const CallArgs& args) {
auto* yearMonth = &args.thisv().toObject().as<PlainYearMonthObject>();
Rooted<CalendarValue> calendar(cx, yearMonth->calendar());
// Step 3.
auto* obj = ToTemporalCalendarObject(cx, calendar);
if (!obj) {
return false;
}
args.rval().setObject(*obj);
return true;
}
/**
* Temporal.PlainYearMonth.prototype.getCalendar ( )
*/
static bool PlainYearMonth_getCalendar(JSContext* cx, unsigned argc,
Value* vp) {
// Steps 1-2.
CallArgs args = CallArgsFromVp(argc, vp);
return CallNonGenericMethod<IsPlainYearMonth, PlainYearMonth_getCalendar>(
cx, args);
}
const JSClass PlainYearMonthObject::class_ = {
"Temporal.PlainYearMonth",
JSCLASS_HAS_RESERVED_SLOTS(PlainYearMonthObject::SLOT_COUNT) |
JSCLASS_HAS_CACHED_PROTO(JSProto_PlainYearMonth),
JS_NULL_CLASS_OPS,
&PlainYearMonthObject::classSpec_,
};
const JSClass& PlainYearMonthObject::protoClass_ = PlainObject::class_;
static const JSFunctionSpec PlainYearMonth_methods[] = {
JS_FN("from", PlainYearMonth_from, 1, 0),
JS_FN("compare", PlainYearMonth_compare, 2, 0),
JS_FS_END,
};
static const JSFunctionSpec PlainYearMonth_prototype_methods[] = {
JS_FN("with", PlainYearMonth_with, 1, 0),
JS_FN("add", PlainYearMonth_add, 1, 0),
JS_FN("subtract", PlainYearMonth_subtract, 1, 0),
JS_FN("until", PlainYearMonth_until, 1, 0),
JS_FN("since", PlainYearMonth_since, 1, 0),
JS_FN("equals", PlainYearMonth_equals, 1, 0),
JS_FN("toString", PlainYearMonth_toString, 0, 0),
JS_FN("toLocaleString", PlainYearMonth_toLocaleString, 0, 0),
JS_FN("toJSON", PlainYearMonth_toJSON, 0, 0),
JS_FN("valueOf", PlainYearMonth_valueOf, 0, 0),
JS_FN("toPlainDate", PlainYearMonth_toPlainDate, 1, 0),
JS_FN("getISOFields", PlainYearMonth_getISOFields, 0, 0),
JS_FN("getCalendar", PlainYearMonth_getCalendar, 0, 0),
JS_FS_END,
};
static const JSPropertySpec PlainYearMonth_prototype_properties[] = {
JS_PSG("calendarId", PlainYearMonth_calendarId, 0),
JS_PSG("year", PlainYearMonth_year, 0),
JS_PSG("month", PlainYearMonth_month, 0),
JS_PSG("monthCode", PlainYearMonth_monthCode, 0),
JS_PSG("daysInYear", PlainYearMonth_daysInYear, 0),
JS_PSG("daysInMonth", PlainYearMonth_daysInMonth, 0),
JS_PSG("monthsInYear", PlainYearMonth_monthsInYear, 0),
JS_PSG("inLeapYear", PlainYearMonth_inLeapYear, 0),
JS_STRING_SYM_PS(toStringTag, "Temporal.PlainYearMonth", JSPROP_READONLY),
JS_PS_END,
};
const ClassSpec PlainYearMonthObject::classSpec_ = {
GenericCreateConstructor<PlainYearMonthConstructor, 2,
gc::AllocKind::FUNCTION>,
GenericCreatePrototype<PlainYearMonthObject>,
PlainYearMonth_methods,
nullptr,
PlainYearMonth_prototype_methods,
PlainYearMonth_prototype_properties,
nullptr,
ClassSpec::DontDefineConstructor,
};