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LibJS: Implement Temporal.Calendar.prototype.year

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Idan Horowitz 2021-07-23 16:35:36 +03:00 • committed by Linus Groh
parent 9fa8f19a0f
commit 3895a8354d
5 changed files with 59 additions and 1 deletions
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16
Userland/Libraries/LibJS/Runtime/Temporal/Calendar.cpp
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@ -11,6 +11,7 @@
#include <LibJS/Runtime/Temporal/Calendar.h>
#include <LibJS/Runtime/Temporal/CalendarConstructor.h>
#include <LibJS/Runtime/Temporal/PlainDate.h>
#include <LibJS/Runtime/Temporal/PlainDateTime.h>
#include <LibJS/Runtime/Value.h>
namespace JS::Temporal {
@ -416,4 +417,19 @@ Optional<TemporalDate> iso_date_from_fields(GlobalObject& global_object, Object&
return regulate_iso_date(global_object, year.as_double(), month, day.as_double(), *overflow);
}
// 12.1.41 ISOYear ( temporalObject ), https://tc39.es/proposal-temporal/#sec-temporal-isoyear
i32 iso_year(Object& temporal_object)
{
// 1. Assert: temporalObject has an [[ISOYear]] internal slot.
// NOTE: Asserted by the VERIFY_NOT_REACHED at the end
// 2. Return 𝔽(temporalObject.[[ISOYear]]).
// TODO: add the rest of the builtins with a [[ISOYear]] slot (PlainYearMonth, PlainMonthDay)
if (is<PlainDate>(temporal_object))
return static_cast<PlainDate&>(temporal_object).iso_year();
if (is<PlainDateTime>(temporal_object))
return static_cast<PlainDateTime&>(temporal_object).iso_year();
VERIFY_NOT_REACHED();
}
}