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LibJS: Merge ISOMonthCode and BuildISOMonthCode

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This is an editorial change in the Temporal spec.
See: https://github.com/tc39/proposal-temporal/commit/a4d17b1
This commit is contained in:
Moustafa Raafat 2022-10-16 13:25:35 +01:00 • committed by Linus Groh
parent b69ceae10c
commit 48cc557dfa
3 changed files with 14 additions and 30 deletions
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34
Userland/Libraries/LibJS/Runtime/Temporal/Calendar.cpp
View file

@ -741,8 +741,8 @@ u8 to_iso_week_of_year(i32 year, u8 month, u8 day)
return week;
}
// 12.2.32 BuildISOMonthCode ( month ), https://tc39.es/proposal-temporal/#sec-buildisomonthcode
String build_iso_month_code(u8 month)
// 12.2.32 ISOMonthCode ( month ), https://tc39.es/proposal-temporal/#sec-temporal-isomonthcode
String iso_month_code(u8 month)
{
// 1. Let numberPart be ToZeroPaddedDecimalString(month, 2).
// 2. Return the string-concatenation of "M" and numberPart.
@ -797,8 +797,8 @@ ThrowCompletionOr<double> resolve_iso_month(VM& vm, Object const& fields)
// 11. Let monthCodeNumber be ! ToIntegerOrInfinity(monthCodeDigits).
auto month_code_number = MUST(Value(js_string(vm, move(month_code_digits))).to_integer_or_infinity(vm));
// 12. Assert: SameValue(monthCode, BuildISOMonthCode(monthCodeNumber)) is true.
VERIFY(month_code_string == build_iso_month_code(month_code_number));
// 12. Assert: SameValue(monthCode, ISOMonthCode(monthCodeNumber)) is true.
VERIFY(month_code_string == iso_month_code(month_code_number));
// 13. If month is not undefined and SameValue(month, monthCodeNumber) is false, throw a RangeError exception.
if (!month.is_undefined() && month.as_double() != month_code_number)
@ -959,25 +959,7 @@ u8 iso_month(Object& temporal_object)
VERIFY_NOT_REACHED();
}
// 12.2.39 ISOMonthCode ( temporalObject ), https://tc39.es/proposal-temporal/#sec-temporal-isomonthcode
String iso_month_code(Object& temporal_object)
{
// 1. Assert: temporalObject has an [[ISOMonth]] internal slot.
// NOTE: Asserted by the VERIFY_NOT_REACHED at the end
// 2. Return ! BuildISOMonthCode(temporalObject.[[ISOMonth]]).
if (is<PlainDate>(temporal_object))
return build_iso_month_code(static_cast<PlainDate&>(temporal_object).iso_month());
if (is<PlainDateTime>(temporal_object))
return build_iso_month_code(static_cast<PlainDateTime&>(temporal_object).iso_month());
if (is<PlainYearMonth>(temporal_object))
return build_iso_month_code(static_cast<PlainYearMonth&>(temporal_object).iso_month());
if (is<PlainMonthDay>(temporal_object))
return build_iso_month_code(static_cast<PlainMonthDay&>(temporal_object).iso_month());
VERIFY_NOT_REACHED();
}
// 12.2.40 ISODay ( temporalObject ), https://tc39.es/proposal-temporal/#sec-temporal-isomonthcode
// 12.2.39 ISODay ( temporalObject ), https://tc39.es/proposal-temporal/#sec-temporal-isomonthcode
u8 iso_day(Object& temporal_object)
{
// 1. Assert: temporalObject has an [[ISODay]] internal slot.
@ -995,7 +977,7 @@ u8 iso_day(Object& temporal_object)
VERIFY_NOT_REACHED();
}
// 12.2.41 DefaultMergeCalendarFields ( fields, additionalFields ), https://tc39.es/proposal-temporal/#sec-temporal-defaultmergecalendarfields
// 12.2.40 DefaultMergeCalendarFields ( fields, additionalFields ), https://tc39.es/proposal-temporal/#sec-temporal-defaultmergecalendarfields
ThrowCompletionOr<Object*> default_merge_calendar_fields(VM& vm, Object const& fields, Object const& additional_fields)
{
auto& realm = *vm.current_realm();
@ -1071,7 +1053,7 @@ ThrowCompletionOr<Object*> default_merge_calendar_fields(VM& vm, Object const& f
return merged;
}
// 12.2.42 ToISODayOfYear ( year, month, day ), https://tc39.es/proposal-temporal/#sec-temporal-toisodayofyear
// 12.2.41 ToISODayOfYear ( year, month, day ), https://tc39.es/proposal-temporal/#sec-temporal-toisodayofyear
u16 to_iso_day_of_year(i32 year, u8 month, u8 day)
{
// 1. Assert: IsValidISODate(year, month, day) is true.
@ -1087,7 +1069,7 @@ u16 to_iso_day_of_year(i32 year, u8 month, u8 day)
return day_within_year(make_date(epoch_days, 0)) + 1;
}
// 12.2.43 ToISODayOfWeek ( year, month, day ), https://tc39.es/proposal-temporal/#sec-temporal-toisodayofweek
// 12.2.42 ToISODayOfWeek ( year, month, day ), https://tc39.es/proposal-temporal/#sec-temporal-toisodayofweek
u8 to_iso_day_of_week(i32 year, u8 month, u8 day)
{
// 1. Assert: IsValidISODate(year, month, day) is true.

3
Userland/Libraries/LibJS/Runtime/Temporal/Calendar.h
View file

@ -66,14 +66,13 @@ ThrowCompletionOr<bool> calendar_equals(VM&, Object& one, Object& two);
ThrowCompletionOr<Object*> consolidate_calendars(VM&, Object& one, Object& two);
u8 iso_days_in_month(i32 year, u8 month);
u8 to_iso_week_of_year(i32 year, u8 month, u8 day);
String build_iso_month_code(u8 month);
String iso_month_code(u8 month);
ThrowCompletionOr<double> resolve_iso_month(VM&, Object const& fields);
ThrowCompletionOr<ISODateRecord> iso_date_from_fields(VM&, Object const& fields, Object const& options);
ThrowCompletionOr<ISOYearMonth> iso_year_month_from_fields(VM&, Object const& fields, Object const& options);
ThrowCompletionOr<ISOMonthDay> iso_month_day_from_fields(VM&, Object const& fields, Object const& options);
i32 iso_year(Object& temporal_object);
u8 iso_month(Object& temporal_object);
String iso_month_code(Object& temporal_object);
u8 iso_day(Object& temporal_object);
ThrowCompletionOr<Object*> default_merge_calendar_fields(VM&, Object const& fields, Object const& additional_fields);
u16 to_iso_day_of_year(i32 year, u8 month, u8 day);

7
Userland/Libraries/LibJS/Runtime/Temporal/CalendarPrototype.cpp
View file

@ -287,8 +287,11 @@ JS_DEFINE_NATIVE_FUNCTION(CalendarPrototype::month_code)
temporal_date_like = TRY(to_temporal_date(vm, temporal_date_like));
}
// 5. Return ! ISOMonthCode(temporalDateLike).
return js_string(vm, iso_month_code(temporal_date_like.as_object()));
// 5. Assert: temporalDateLike has an [[ISOMonth]] internal slot.
// NOTE: The assertion happens in iso_month() call.
// 6. Return ISOMonthCode(temporalDateLike.[[ISOMonth]]).
return js_string(vm, iso_month_code(iso_month(temporal_date_like.as_object())));
}
// 12.4.12 Temporal.Calendar.prototype.day ( temporalDateLike ), https://tc39.es/proposal-temporal/#sec-temporal.calendar.prototype.day