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LibJS: Implement Temporal.Duration.prototype.nanoseconds
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4 changed files with 30 additions and 0 deletions
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@ -244,6 +244,7 @@ namespace JS {
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P(months) \
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P(multiline) \
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P(name) \
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P(nanoseconds) \
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P(next) \
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P(now) \
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P(of) \
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@ -34,6 +34,7 @@ void DurationPrototype::initialize(GlobalObject& global_object)
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define_native_accessor(vm.names.seconds, seconds_getter, {}, Attribute::Configurable);
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define_native_accessor(vm.names.milliseconds, milliseconds_getter, {}, Attribute::Configurable);
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define_native_accessor(vm.names.microseconds, microseconds_getter, {}, Attribute::Configurable);
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define_native_accessor(vm.names.nanoseconds, nanoseconds_getter, {}, Attribute::Configurable);
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}
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static Duration* typed_this(GlobalObject& global_object)
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@ -166,4 +167,17 @@ JS_DEFINE_NATIVE_FUNCTION(DurationPrototype::microseconds_getter)
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return Value(duration->microseconds());
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}
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// 7.3.12 get Temporal.Duration.prototype.nanoseconds, https://tc39.es/proposal-temporal/#sec-get-temporal.duration.prototype.nanoseconds
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JS_DEFINE_NATIVE_FUNCTION(DurationPrototype::nanoseconds_getter)
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{
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// 1. Let duration be the this value.
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// 2. Perform ? RequireInternalSlot(duration, [[InitializedTemporalDuration]]).
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auto* duration = typed_this(global_object);
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if (vm.exception())
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return {};
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// 3. Return duration.[[Nanoseconds]].
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return Value(duration->nanoseconds());
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}
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}
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@ -28,6 +28,7 @@ private:
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JS_DECLARE_NATIVE_FUNCTION(seconds_getter);
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JS_DECLARE_NATIVE_FUNCTION(milliseconds_getter);
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JS_DECLARE_NATIVE_FUNCTION(microseconds_getter);
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JS_DECLARE_NATIVE_FUNCTION(nanoseconds_getter);
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};
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}
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@ -0,0 +1,14 @@
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describe("correct behavior", () => {
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test("basic functionality", () => {
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const duration = new Temporal.Duration(0, 0, 0, 0, 0, 0, 0, 0, 0, 123);
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expect(duration.nanoseconds).toBe(123);
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});
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});
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test("errors", () => {
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test("this value must be a Temporal.Duration object", () => {
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expect(() => {
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Reflect.get(Temporal.Duration.prototype, "nanoseconds", "foo");
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}).toThrowWithMessage(TypeError, "Not a Temporal.Duration");
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});
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});
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