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LibJS: Implement Temporal.PlainMonthDay.prototype.toJSON()
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3 changed files with 42 additions and 0 deletions
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@ -35,6 +35,7 @@ void PlainMonthDayPrototype::initialize(GlobalObject& global_object)
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u8 attr = Attribute::Writable | Attribute::Configurable;
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define_native_function(vm.names.toString, to_string, 0, attr);
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define_native_function(vm.names.toLocaleString, to_locale_string, 0, attr);
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define_native_function(vm.names.toJSON, to_json, 0, attr);
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define_native_function(vm.names.valueOf, value_of, 0, attr);
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define_native_function(vm.names.getISOFields, get_iso_fields, 0, attr);
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}
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@ -142,6 +143,23 @@ JS_DEFINE_NATIVE_FUNCTION(PlainMonthDayPrototype::to_locale_string)
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return js_string(vm, *string);
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}
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// 10.3.10 Temporal.PlainMonthDay.prototype.toJSON ( ), https://tc39.es/proposal-temporal/#sec-temporal.plainmonthday.prototype.tojson
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JS_DEFINE_NATIVE_FUNCTION(PlainMonthDayPrototype::to_json)
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{
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// 1. Let monthDay be the this value.
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// 2. Perform ? RequireInternalSlot(monthDay, [[InitializedTemporalMonthDay]]).
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auto* month_day = typed_this(global_object);
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if (vm.exception())
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return {};
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// 3. Return ? TemporalMonthDayToString(monthDay, "auto").
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auto string = temporal_month_day_to_string(global_object, *month_day, "auto"sv);
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if (vm.exception())
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return {};
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return js_string(vm, *string);
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}
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// 10.3.11 Temporal.PlainMonthDay.prototype.valueOf ( ), https://tc39.es/proposal-temporal/#sec-temporal.plainmonthday.prototype.valueof
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JS_DEFINE_NATIVE_FUNCTION(PlainMonthDayPrototype::value_of)
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{
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@ -24,6 +24,7 @@ private:
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JS_DECLARE_NATIVE_FUNCTION(day_getter);
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JS_DECLARE_NATIVE_FUNCTION(to_string);
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JS_DECLARE_NATIVE_FUNCTION(to_locale_string);
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JS_DECLARE_NATIVE_FUNCTION(to_json);
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JS_DECLARE_NATIVE_FUNCTION(value_of);
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JS_DECLARE_NATIVE_FUNCTION(get_iso_fields);
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};
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@ -0,0 +1,23 @@
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describe("correct behavior", () => {
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test("length is 0", () => {
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expect(Temporal.PlainMonthDay.prototype.toJSON).toHaveLength(0);
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});
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test("basic functionality", () => {
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let plainMonthDay;
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plainMonthDay = new Temporal.PlainMonthDay(7, 6);
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expect(plainMonthDay.toJSON()).toBe("07-06");
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plainMonthDay = new Temporal.PlainMonthDay(7, 6, { toString: () => "foo" }, 2021);
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expect(plainMonthDay.toJSON()).toBe("2021-07-06[u-ca=foo]");
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});
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});
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describe("errors", () => {
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test("this value must be a Temporal.PlainMonthDay object", () => {
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expect(() => {
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Temporal.PlainMonthDay.prototype.toJSON.call("foo");
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}).toThrowWithMessage(TypeError, "Not a Temporal.PlainMonthDay");
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});
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});
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