diff options
3 files changed, 55 insertions, 0 deletions
diff --git a/Userland/Libraries/LibJS/Runtime/Temporal/ZonedDateTimePrototype.cpp b/Userland/Libraries/LibJS/Runtime/Temporal/ZonedDateTimePrototype.cpp index 66b47aee66..ff25e23d76 100644 --- a/Userland/Libraries/LibJS/Runtime/Temporal/ZonedDateTimePrototype.cpp +++ b/Userland/Libraries/LibJS/Runtime/Temporal/ZonedDateTimePrototype.cpp @@ -60,6 +60,7 @@ void ZonedDateTimePrototype::initialize(GlobalObject& global_object) define_native_accessor(vm.names.offsetNanoseconds, offset_nanoseconds_getter, {}, Attribute::Configurable); define_native_accessor(vm.names.offset, offset_getter, {}, Attribute::Configurable); define_native_accessor(vm.names.era, era_getter, {}, Attribute::Configurable); + define_native_accessor(vm.names.eraYear, era_year_getter, {}, Attribute::Configurable); u8 attr = Attribute::Writable | Attribute::Configurable; define_native_function(vm.names.valueOf, value_of, 0, attr); @@ -732,6 +733,33 @@ JS_DEFINE_NATIVE_FUNCTION(ZonedDateTimePrototype::era_getter) return calendar_era(global_object, calendar, *plain_date_time); } +// 15.6.10.3 get Temporal.ZonedDateTime.prototype.eraYear, https://tc39.es/proposal-temporal/#sec-get-temporal.zoneddatetime.prototype.erayear +JS_DEFINE_NATIVE_FUNCTION(ZonedDateTimePrototype::era_year_getter) +{ + // 1. Let zonedDateTime be the this value. + // 2. Perform ? RequireInternalSlot(zonedDateTime, [[InitializedTemporalZonedDateTime]]). + auto* zoned_date_time = typed_this(global_object); + if (vm.exception()) + return {}; + + // 3. Let timeZone be zonedDateTime.[[TimeZone]]. + auto& time_zone = zoned_date_time->time_zone(); + + // 4. Let instant be ! CreateTemporalInstant(zonedDateTime.[[Nanoseconds]]). + auto* instant = create_temporal_instant(global_object, zoned_date_time->nanoseconds()); + + // 5. Let calendar be zonedDateTime.[[Calendar]]. + auto& calendar = zoned_date_time->calendar(); + + // 6. Let plainDateTime be ? BuiltinTimeZoneGetPlainDateTimeFor(timeZone, instant, calendar). + auto* plain_date_time = builtin_time_zone_get_plain_date_time_for(global_object, &time_zone, *instant, calendar); + if (vm.exception()) + return {}; + + // 7. Return ? CalendarEraYear(calendar, plainDateTime). + return calendar_era_year(global_object, calendar, *plain_date_time); +} + // 6.3.44 Temporal.ZonedDateTime.prototype.valueOf ( ), https://tc39.es/proposal-temporal/#sec-temporal.zoneddatetime.prototype.valueof JS_DEFINE_NATIVE_FUNCTION(ZonedDateTimePrototype::value_of) { diff --git a/Userland/Libraries/LibJS/Runtime/Temporal/ZonedDateTimePrototype.h b/Userland/Libraries/LibJS/Runtime/Temporal/ZonedDateTimePrototype.h index ad01316eea..421eaa360b 100644 --- a/Userland/Libraries/LibJS/Runtime/Temporal/ZonedDateTimePrototype.h +++ b/Userland/Libraries/LibJS/Runtime/Temporal/ZonedDateTimePrototype.h @@ -46,6 +46,7 @@ private: JS_DECLARE_NATIVE_FUNCTION(offset_nanoseconds_getter); JS_DECLARE_NATIVE_FUNCTION(offset_getter); JS_DECLARE_NATIVE_FUNCTION(era_getter); + JS_DECLARE_NATIVE_FUNCTION(era_year_getter); JS_DECLARE_NATIVE_FUNCTION(value_of); JS_DECLARE_NATIVE_FUNCTION(to_instant); JS_DECLARE_NATIVE_FUNCTION(to_plain_date); diff --git a/Userland/Libraries/LibJS/Tests/builtins/Temporal/ZonedDateTime/ZonedDateTime.prototype.eraYear.js b/Userland/Libraries/LibJS/Tests/builtins/Temporal/ZonedDateTime/ZonedDateTime.prototype.eraYear.js new file mode 100644 index 0000000000..304d9eea02 --- /dev/null +++ b/Userland/Libraries/LibJS/Tests/builtins/Temporal/ZonedDateTime/ZonedDateTime.prototype.eraYear.js @@ -0,0 +1,26 @@ +describe("correct behavior", () => { + test("basic functionality", () => { + const timeZone = new Temporal.TimeZone("UTC"); + const zonedDateTime = new Temporal.ZonedDateTime(1625614921000000000n, timeZone); + expect(zonedDateTime.eraYear).toBeUndefined(); + }); + + test("calendar with custom eraYear function", () => { + const timeZone = new Temporal.TimeZone("UTC"); + const calendar = { + eraYear() { + return 123; + }, + }; + const zonedDateTime = new Temporal.ZonedDateTime(1625614921000000000n, timeZone, calendar); + expect(zonedDateTime.eraYear).toBe(123); + }); +}); + +describe("errors", () => { + test("this value must be a Temporal.ZonedDateTime object", () => { + expect(() => { + Reflect.get(Temporal.ZonedDateTime.prototype, "eraYear", "foo"); + }).toThrowWithMessage(TypeError, "Not a Temporal.ZonedDateTime"); + }); +}); |