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LibJS: Implement Temporal.ZonedDateTime.prototype.timeZone
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3 changed files with 30 additions and 0 deletions
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@ -27,6 +27,7 @@ void ZonedDateTimePrototype::initialize(GlobalObject& global_object)
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define_direct_property(*vm.well_known_symbol_to_string_tag(), js_string(vm.heap(), "Temporal.ZonedDateTime"), Attribute::Configurable);
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define_native_accessor(vm.names.calendar, calendar_getter, {}, Attribute::Configurable);
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define_native_accessor(vm.names.timeZone, time_zone_getter, {}, Attribute::Configurable);
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}
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static ZonedDateTime* typed_this(GlobalObject& global_object)
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@ -55,4 +56,17 @@ JS_DEFINE_NATIVE_FUNCTION(ZonedDateTimePrototype::calendar_getter)
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return Value(&zoned_date_time->calendar());
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}
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// 6.3.4 get Temporal.ZonedDateTime.prototype.timeZone, https://tc39.es/proposal-temporal/#sec-get-temporal.zoneddatetime.prototype.timezone
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JS_DEFINE_NATIVE_FUNCTION(ZonedDateTimePrototype::time_zone_getter)
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{
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// 1. Let zonedDateTime be the this value.
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// 2. Perform ? RequireInternalSlot(zonedDateTime, [[InitializedTemporalZonedDateTime]]).
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auto* zoned_date_time = typed_this(global_object);
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if (vm.exception())
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return {};
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// 3. Return zonedDateTime.[[TimeZone]].
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return Value(&zoned_date_time->time_zone());
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}
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}
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@ -20,6 +20,7 @@ public:
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private:
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JS_DECLARE_NATIVE_FUNCTION(calendar_getter);
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JS_DECLARE_NATIVE_FUNCTION(time_zone_getter);
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};
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}
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@ -0,0 +1,15 @@
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describe("correct behavior", () => {
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test("basic functionality", () => {
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const timeZone = new Temporal.TimeZone("UTC");
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const zonedDateTime = new Temporal.ZonedDateTime(0n, timeZone);
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expect(zonedDateTime.timeZone).toBe(timeZone);
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});
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});
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test("errors", () => {
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test("this value must be a Temporal.ZonedDateTime object", () => {
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expect(() => {
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Reflect.get(Temporal.ZonedDateTime.prototype, "timeZone", "foo");
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}).toThrowWithMessage(TypeError, "Not a Temporal.ZonedDateTime");
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});
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});
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