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LibJS: Implement Temporal.PlainDateTime.prototype.withPlainDate

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Idan Horowitz 2021-07-31 01:39:36 +03:00 • committed by Linus Groh
parent f657c86d58
commit 010761aff4
7 changed files with 80 additions and 0 deletions
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35
Userland/Libraries/LibJS/Runtime/Temporal/Calendar.cpp
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@ -428,6 +428,41 @@ bool calendar_equals(GlobalObject& global_object, Object& one, Object& two)
return false;
}
// 12.1.29 ConsolidateCalendars ( one, two ), https://tc39.es/proposal-temporal/#sec-temporal-consolidatecalendars
Object* consolidate_calendars(GlobalObject& global_object, Object& one, Object& two)
{
auto& vm = global_object.vm();
// 1. If one and two are the same Object value, return two.
if (&one == &two)
return &two;
// 2. Let calendarOne be ? ToString(one).
auto calendar_one = Value(&one).to_string(global_object);
if (vm.exception())
return {};
// 3. Let calendarTwo be ? ToString(two).
auto calendar_two = Value(&two).to_string(global_object);
if (vm.exception())
return {};
// 4. If calendarOne is calendarTwo, return two.
if (calendar_one == calendar_two)
return &two;
// 5. If calendarOne is "iso8601", return two.
if (calendar_one == "iso8601"sv)
return &two;
// 6. If calendarTwo is "iso8601", return one.
if (calendar_two == "iso8601"sv)
return &one;
// 7. Throw a RangeError exception.
vm.throw_exception<RangeError>(global_object, ErrorType::TemporalInvalidCalendar);
return {};
}
// 12.1.30 IsISOLeapYear ( year ), https://tc39.es/proposal-temporal/#sec-temporal-isisoleapyear
bool is_iso_leap_year(i32 year)
{