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LibJS: Implement Temporal.PlainDate.prototype.era
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5 changed files with 67 additions and 0 deletions
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@ -288,6 +288,30 @@ Value calendar_in_leap_year(GlobalObject& global_object, Object& calendar, Objec
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return Value(&calendar).invoke(global_object, vm.names.inLeapYear, &date_like);
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}
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// 15.6.1.2 CalendarEra ( calendar, dateLike ), https://tc39.es/proposal-temporal/#sec-temporal-calendarera
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Value calendar_era(GlobalObject& global_object, Object& calendar, Object& date_like)
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{
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auto& vm = global_object.vm();
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// 1. Assert: Type(calendar) is Object.
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// 2. Let result be ? Invoke(calendar, "era", « dateLike »).
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auto result = Value(&calendar).invoke(global_object, vm.names.era, &date_like);
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if (vm.exception())
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return {};
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// 3. If result is not undefined, set result to ? ToString(result).
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if (!result.is_undefined()) {
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auto result_string = result.to_string(global_object);
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if (vm.exception())
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return {};
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result = js_string(vm, move(result_string));
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}
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// 4. Return result.
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return result;
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}
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// 12.1.21 ToTemporalCalendar ( temporalCalendarLike ), https://tc39.es/proposal-temporal/#sec-temporal-totemporalcalendar
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Object* to_temporal_calendar(GlobalObject& global_object, Value temporal_calendar_like)
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{
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