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LibJS: Implement Temporal.Duration.prototype.blank
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sideshowbarker
2024-07-18 08:57:31 +09:00
Author: https://github.com/linusg Commit: https://github.com/SerenityOS/serenity/commit/a06b034a9a2 Pull-request: https://github.com/SerenityOS/serenity/pull/8794 Reviewed-by: https://github.com/IdanHo ✅
@ -71,6 +71,7 @@ namespace JS {
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P(atanh) \
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P(big) \
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P(bind) \
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P(blank) \
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P(blink) \
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P(bold) \
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P(buffer) \
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@ -36,6 +36,7 @@ void DurationPrototype::initialize(GlobalObject& global_object)
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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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define_native_accessor(vm.names.sign, sign_getter, {}, Attribute::Configurable);
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define_native_accessor(vm.names.blank, blank_getter, {}, Attribute::Configurable);
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}
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static Duration* typed_this(GlobalObject& global_object)
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@ -194,4 +195,24 @@ JS_DEFINE_NATIVE_FUNCTION(DurationPrototype::sign_getter)
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return Value(duration_sign(duration->years(), duration->months(), duration->weeks(), duration->days(), duration->hours(), duration->minutes(), duration->seconds(), duration->milliseconds(), duration->microseconds(), duration->nanoseconds()));
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}
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// 7.3.14 get Temporal.Duration.prototype.blank, https://tc39.es/proposal-temporal/#sec-get-temporal.duration.prototype.blank
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JS_DEFINE_NATIVE_FUNCTION(DurationPrototype::blank_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. Let sign be ! DurationSign(duration.[[Years]], duration.[[Months]], duration.[[Weeks]], duration.[[Days]], duration.[[Hours]], duration.[[Minutes]], duration.[[Seconds]], duration.[[Milliseconds]], duration.[[Microseconds]], duration.[[Nanoseconds]]).
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auto sign = duration_sign(duration->years(), duration->months(), duration->weeks(), duration->days(), duration->hours(), duration->minutes(), duration->seconds(), duration->milliseconds(), duration->microseconds(), duration->nanoseconds());
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// 4. If sign = 0, return true.
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if (sign == 0)
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return Value(true);
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// 5. Return false.
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return Value(false);
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}
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}
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@ -30,6 +30,7 @@ private:
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JS_DECLARE_NATIVE_FUNCTION(microseconds_getter);
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JS_DECLARE_NATIVE_FUNCTION(nanoseconds_getter);
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JS_DECLARE_NATIVE_FUNCTION(sign_getter);
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JS_DECLARE_NATIVE_FUNCTION(blank_getter);
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};
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}
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@ -0,0 +1,17 @@
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describe("correct behavior", () => {
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test("basic functionality", () => {
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const nonBlankDuration = new Temporal.Duration(123);
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expect(nonBlankDuration.blank).toBeFalse();
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const blankDuration = new Temporal.Duration(0);
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expect(blankDuration.blank).toBeTrue();
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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, "blank", "foo");
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}).toThrowWithMessage(TypeError, "Not a Temporal.Duration");
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});
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});
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