LibJS: Implement Temporal.PlainTime.prototype.getISOFields()

Userland/Libraries/LibJS/Runtime/Temporal/PlainTimePrototype.cpp

@@ -38,6 +38,7 @@ void PlainTimePrototype::initialize(GlobalObject& global_object)
 
     u8 attr = Attribute::Writable | Attribute::Configurable;
     define_native_function(vm.names.toPlainDateTime, to_plain_date_time, 1, attr);
+    define_native_function(vm.names.getISOFields, get_iso_fields, 0, attr);
     define_native_function(vm.names.valueOf, value_of, 0, attr);
 }
 
@@ -163,6 +164,43 @@ JS_DEFINE_NATIVE_FUNCTION(PlainTimePrototype::to_plain_date_time)
     return create_temporal_date_time(global_object, temporal_date->iso_year(), temporal_date->iso_month(), temporal_date->iso_day(), temporal_time->iso_hour(), temporal_time->iso_minute(), temporal_time->iso_second(), temporal_time->iso_millisecond(), temporal_time->iso_microsecond(), temporal_time->iso_nanosecond(), temporal_date->calendar());
 }
 
+// 4.3.19 Temporal.PlainTime.prototype.getISOFields ( ), https://tc39.es/proposal-temporal/#sec-temporal.plaintime.prototype.getisofields
+JS_DEFINE_NATIVE_FUNCTION(PlainTimePrototype::get_iso_fields)
+{
+    // 1. Let temporalTime be the this value.
+    // 2. Perform ? RequireInternalSlot(temporalTime, [[InitializedTemporalTime]]).
+    auto* temporal_time = typed_this(global_object);
+    if (vm.exception())
+        return {};
+
+    // 3. Let fields be ! OrdinaryObjectCreate(%Object.prototype%).
+    auto* fields = Object::create(global_object, global_object.object_prototype());
+
+    // 4. Perform ! CreateDataPropertyOrThrow(fields, "calendar", temporalTime.[[Calendar]]).
+    fields->create_data_property_or_throw(vm.names.calendar, Value(&temporal_time->calendar()));
+
+    // 5. Perform ! CreateDataPropertyOrThrow(fields, "isoHour", 𝔽(temporalTime.[[ISOHour]])).
+    fields->create_data_property_or_throw(vm.names.isoHour, Value(temporal_time->iso_hour()));
+
+    // 6. Perform ! CreateDataPropertyOrThrow(fields, "isoMicrosecond", 𝔽(temporalTime.[[ISOMicrosecond]])).
+    fields->create_data_property_or_throw(vm.names.isoMicrosecond, Value(temporal_time->iso_microsecond()));
+
+    // 7. Perform ! CreateDataPropertyOrThrow(fields, "isoMillisecond", 𝔽(temporalTime.[[ISOMillisecond]])).
+    fields->create_data_property_or_throw(vm.names.isoMillisecond, Value(temporal_time->iso_millisecond()));
+
+    // 8. Perform ! CreateDataPropertyOrThrow(fields, "isoMinute", 𝔽(temporalTime.[[ISOMinute]])).
+    fields->create_data_property_or_throw(vm.names.isoMinute, Value(temporal_time->iso_minute()));
+
+    // 9. Perform ! CreateDataPropertyOrThrow(fields, "isoNanosecond", 𝔽(temporalTime.[[ISONanosecond]])).
+    fields->create_data_property_or_throw(vm.names.isoNanosecond, Value(temporal_time->iso_nanosecond()));
+
+    // 10. Perform ! CreateDataPropertyOrThrow(fields, "isoSecond", 𝔽(temporalTime.[[ISOSecond]])).
+    fields->create_data_property_or_throw(vm.names.isoSecond, Value(temporal_time->iso_second()));
+
+    // 11. Return fields.
+    return fields;
+}
+
 // 4.3.23 Temporal.PlainTime.prototype.valueOf ( ), https://tc39.es/proposal-temporal/#sec-temporal.plaintime.prototype.valueof
 JS_DEFINE_NATIVE_FUNCTION(PlainTimePrototype::value_of)
 {

Userland/Libraries/LibJS/Runtime/Temporal/PlainTimePrototype.h

@@ -27,6 +27,7 @@ private:
     JS_DECLARE_NATIVE_FUNCTION(microsecond_getter);
     JS_DECLARE_NATIVE_FUNCTION(nanosecond_getter);
     JS_DECLARE_NATIVE_FUNCTION(to_plain_date_time);
+    JS_DECLARE_NATIVE_FUNCTION(get_iso_fields);
     JS_DECLARE_NATIVE_FUNCTION(value_of);
 };
 

Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainTime/PlainTime.prototype.getISOFields.js

@@ -0,0 +1,29 @@
+describe("normal behavior", () => {
+    test("length is 0", () => {
+        expect(Temporal.PlainTime.prototype.getISOFields).toHaveLength(0);
+    });
+
+    test("basic functionality", () => {
+        const plainTime = new Temporal.PlainTime(23, 53, 18, 123, 456, 789);
+        const fields = plainTime.getISOFields();
+        expect(fields).toEqual({
+            calendar: plainTime.calendar,
+            isoHour: 23,
+            isoMicrosecond: 456,
+            isoMillisecond: 123,
+            isoMinute: 53,
+            isoNanosecond: 789,
+            isoSecond: 18,
+        });
+        // Test field order
+        expect(Object.getOwnPropertyNames(fields)).toEqual([
+            "calendar",
+            "isoHour",
+            "isoMicrosecond",
+            "isoMillisecond",
+            "isoMinute",
+            "isoNanosecond",
+            "isoSecond",
+        ]);
+    });
+});