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LibJS: Implement Temporal.PlainDateTime.prototype.equals()
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3 changed files with 40 additions and 0 deletions
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@ -53,6 +53,7 @@ void PlainDateTimePrototype::initialize(GlobalObject& global_object)
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u8 attr = Attribute::Writable | Attribute::Configurable;
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define_native_function(vm.names.withPlainDate, with_plain_date, 1, attr);
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define_native_function(vm.names.withCalendar, with_calendar, 1, attr);
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define_native_function(vm.names.equals, equals, 1, attr);
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define_native_function(vm.names.valueOf, value_of, 0, attr);
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define_native_function(vm.names.toPlainDate, to_plain_date, 0, attr);
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define_native_function(vm.names.toPlainYearMonth, to_plain_year_month, 0, attr);
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@ -398,6 +399,31 @@ JS_DEFINE_NATIVE_FUNCTION(PlainDateTimePrototype::with_calendar)
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return create_temporal_date_time(global_object, date_time->iso_year(), date_time->iso_month(), date_time->iso_day(), date_time->iso_hour(), date_time->iso_minute(), date_time->iso_second(), date_time->iso_millisecond(), date_time->iso_microsecond(), date_time->iso_nanosecond(), *calendar);
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}
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// 5.3.31 Temporal.PlainDateTime.prototype.equals ( other ), https://tc39.es/proposal-temporal/#sec-temporal.plaindatetime.prototype.equals
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JS_DEFINE_NATIVE_FUNCTION(PlainDateTimePrototype::equals)
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{
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// 1. Let dateTime be the this value.
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// 2. Perform ? RequireInternalSlot(dateTime, [[InitializedTemporalDateTime]]).
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auto* date_time = typed_this(global_object);
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if (vm.exception())
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return {};
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// 3. Set other to ? ToTemporalDateTime(other).
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auto* other = to_temporal_date_time(global_object, vm.argument(0));
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if (vm.exception())
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return {};
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// 4. Let result be ! CompareISODateTime(dateTime.[[ISOYear]], dateTime.[[ISOMonth]], dateTime.[[ISODay]], dateTime.[[ISOHour]], dateTime.[[ISOMinute]], dateTime.[[ISOSecond]], dateTime.[[ISOMillisecond]], dateTime.[[ISOMicrosecond]], dateTime.[[ISONanosecond]], other.[[ISOYear]], other.[[ISOMonth]], other.[[ISODay]], other.[[ISOHour]], other.[[ISOMinute]], other.[[ISOSecond]], other.[[ISOMillisecond]], other.[[ISOMicrosecond]], other.[[ISONanosecond]]).
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auto result = compare_iso_date_time(date_time->iso_year(), date_time->iso_month(), date_time->iso_day(), date_time->iso_hour(), date_time->iso_minute(), date_time->iso_second(), date_time->iso_millisecond(), date_time->iso_microsecond(), date_time->iso_nanosecond(), other->iso_year(), other->iso_month(), other->iso_day(), other->iso_hour(), other->iso_minute(), other->iso_second(), other->iso_millisecond(), other->iso_microsecond(), other->iso_nanosecond());
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// 5. If result is not 0, return false.
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if (result != 0)
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return Value(false);
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// 6. Return ? CalendarEquals(dateTime.[[Calendar]], other.[[Calendar]]).
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return Value(calendar_equals(global_object, date_time->calendar(), other->calendar()));
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}
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// 5.3.35 Temporal.PlainDateTime.prototype.valueOf ( ), https://tc39.es/proposal-temporal/#sec-temporal.plaindatetime.prototype.valueof
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JS_DEFINE_NATIVE_FUNCTION(PlainDateTimePrototype::value_of)
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{
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@ -40,6 +40,7 @@ private:
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JS_DECLARE_NATIVE_FUNCTION(in_leap_year_getter);
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JS_DECLARE_NATIVE_FUNCTION(with_plain_date);
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JS_DECLARE_NATIVE_FUNCTION(with_calendar);
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JS_DECLARE_NATIVE_FUNCTION(equals);
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JS_DECLARE_NATIVE_FUNCTION(value_of);
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JS_DECLARE_NATIVE_FUNCTION(to_plain_date);
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JS_DECLARE_NATIVE_FUNCTION(to_plain_year_month);
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@ -0,0 +1,13 @@
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describe("correct behavior", () => {
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test("length is 1", () => {
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expect(Temporal.PlainDateTime.prototype.equals).toHaveLength(1);
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});
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test("basic functionality", () => {
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const calendar = { hello: "friends" };
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const firstPlainDateTime = new Temporal.PlainDateTime(1, 1, 1, 1, 1, 1, 1, 1, 1, calendar);
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const secondPlainDateTime = new Temporal.PlainDateTime(0, 1, 1, 1, 1, 1, 1, 1, 1, calendar);
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expect(firstPlainDateTime.equals(firstPlainDateTime));
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expect(!firstPlainDateTime.equals(secondPlainDateTime));
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});
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});
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