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LibJS: Implement Temporal.PlainDateTime.prototype.nanosecond

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This commit is contained in:
Idan Horowitz 2021-07-30 00:11:36 +03:00 • committed by Linus Groh
parent 23bf840326
commit 518a9f3eab
3 changed files with 29 additions and 0 deletions
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14
Userland/Libraries/LibJS/Runtime/Temporal/PlainDateTimePrototype.cpp
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@ -37,6 +37,7 @@ void PlainDateTimePrototype::initialize(GlobalObject& global_object)
define_native_accessor(vm.names.second, second_getter, {}, Attribute::Configurable);
define_native_accessor(vm.names.millisecond, millisecond_getter, {}, Attribute::Configurable);
define_native_accessor(vm.names.microsecond, microsecond_getter, {}, Attribute::Configurable);
define_native_accessor(vm.names.nanosecond, nanosecond_getter, {}, Attribute::Configurable);
u8 attr = Attribute::Writable | Attribute::Configurable;
define_native_function(vm.names.valueOf, value_of, 0, attr);
@ -199,6 +200,19 @@ JS_DEFINE_NATIVE_FUNCTION(PlainDateTimePrototype::microsecond_getter)
return Value(date_time->iso_microsecond());
}
// 5.3.13 get Temporal.PlainDateTime.prototype.nanosecond, https://tc39.es/proposal-temporal/#sec-get-temporal.plaindatetime.prototype.nanosecond
JS_DEFINE_NATIVE_FUNCTION(PlainDateTimePrototype::nanosecond_getter)
{
// 1. Let dateTime be the this value.
// 2. Perform ? RequireInternalSlot(dateTime, [[InitializedTemporalDateTime]]).
auto* date_time = typed_this(global_object);
if (vm.exception())
return {};
// 3. Return 𝔽(dateTime.[[ISONanosecond]]).
return Value(date_time->iso_nanosecond());
}
// 5.3.35 Temporal.PlainDateTime.prototype.valueOf ( ), https://tc39.es/proposal-temporal/#sec-temporal.plaindatetime.prototype.valueof
JS_DEFINE_NATIVE_FUNCTION(PlainDateTimePrototype::value_of)
{

1
Userland/Libraries/LibJS/Runtime/Temporal/PlainDateTimePrototype.h
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@ -29,6 +29,7 @@ private:
JS_DECLARE_NATIVE_FUNCTION(second_getter);
JS_DECLARE_NATIVE_FUNCTION(millisecond_getter);
JS_DECLARE_NATIVE_FUNCTION(microsecond_getter);
JS_DECLARE_NATIVE_FUNCTION(nanosecond_getter);
JS_DECLARE_NATIVE_FUNCTION(value_of);
JS_DECLARE_NATIVE_FUNCTION(to_plain_date);
JS_DECLARE_NATIVE_FUNCTION(get_iso_fields);

14
Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainDateTime/PlainDateTime.prototype.nanosecond.js Normal file
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@ -0,0 +1,14 @@
describe("correct behavior", () => {
test("basic functionality", () => {
const plainDateTime = new Temporal.PlainDateTime(2021, 7, 30, 1, 4, 32, 111, 420, 963);
expect(plainDateTime.nanosecond).toBe(963);
});
});
test("errors", () => {
test("this value must be a Temporal.PlainDateTime object", () => {
expect(() => {
Reflect.get(Temporal.PlainDateTime.prototype, "nanosecond", "foo");
}).toThrowWithMessage(TypeError, "Not a Temporal.PlainDateTime");
});
});