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LibJS: Add and use the CreateNegatedTemporalDuration AO

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This is a normative change in the Temporal spec.

See: 6178ed3
This commit is contained in:
Linus Groh 2021-09-03 00:10:09 +01:00
parent f046a4a75d
commit 33f76f88bb
5 changed files with 25 additions and 7 deletions
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12
Userland/Libraries/LibJS/Runtime/Temporal/CalendarPrototype.cpp
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@ -219,12 +219,18 @@ JS_DEFINE_NATIVE_FUNCTION(CalendarPrototype::date_add)
if (vm.exception())
return {};
// 8. Let result be ? AddISODate(date.[[ISOYear]], date.[[ISOMonth]], date.[[ISODay]], duration.[[Years]], duration.[[Months]], duration.[[Weeks]], duration.[[Days]], overflow).
auto result = add_iso_date(global_object, date->iso_year(), date->iso_month(), date->iso_day(), duration->years(), duration->months(), duration->weeks(), duration->days(), *overflow);
// FIXME: Narrowing conversion from 'double' to 'i64'
auto* nanoseconds = js_bigint(vm, Crypto::SignedBigInteger::create_from(duration->nanoseconds()));
// 8. Let balanceResult be ! BalanceDuration(duration.[[Days]], duration.[[Hours]], duration.[[Minutes]], duration.[[Seconds]], duration.[[Milliseconds]], duration.[[Microseconds]], duration.[[Nanoseconds]], "day").
auto balance_result = balance_duration(global_object, duration->days(), duration->hours(), duration->minutes(), duration->seconds(), duration->milliseconds(), duration->microseconds(), *nanoseconds, "day"sv);
// 9. Let result be ? AddISODate(date.[[ISOYear]], date.[[ISOMonth]], date.[[ISODay]], duration.[[Years]], duration.[[Months]], duration.[[Weeks]], balanceResult.[[Days]], overflow).
auto result = add_iso_date(global_object, date->iso_year(), date->iso_month(), date->iso_day(), duration->years(), duration->months(), duration->weeks(), balance_result->days, *overflow);
if (vm.exception())
return {};
// 9. Return ? CreateTemporalDate(result.[[Year]], result.[[Month]], result.[[Day]], calendar).
// 10. Return ? CreateTemporalDate(result.[[Year]], result.[[Month]], result.[[Day]], calendar).
return create_temporal_date(global_object, result->year, result->month, result->day, *calendar);
}

12
Userland/Libraries/LibJS/Runtime/Temporal/Duration.cpp
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@ -270,6 +270,16 @@ Duration* create_temporal_duration(GlobalObject& global_object, double years, do
return object;
}
// 7.5.8 CreateNegatedTemporalDuration ( duration ), https://tc39.es/proposal-temporal/#sec-temporal-createnegatedtemporalduration
Duration* create_negated_temporal_duration(GlobalObject& global_object, Duration const& duration)
{
// 1. Assert: Type(duration) is Object.
// 2. Assert: duration has an [[InitializedTemporalDuration]] internal slot.
// 3. Return ! CreateTemporalDuration(−duration.[[Years]], −duration.[[Months]], −duration.[[Weeks]], −duration.[[Days]], −duration.[[Hours]], −duration.[[Minutes]], −duration.[[Seconds]], −duration.[[Milliseconds]], −duration.[[Microseconds]], −duration.[[Nanoseconds]]).
return create_temporal_duration(global_object, -duration.years(), -duration.months(), -duration.weeks(), -duration.days(), -duration.hours(), -duration.minutes(), -duration.seconds(), -duration.milliseconds(), -duration.microseconds(), -duration.nanoseconds());
}
// 7.5.10 TotalDurationNanoseconds ( days, hours, minutes, seconds, milliseconds, microseconds, nanoseconds, offsetShift ), https://tc39.es/proposal-temporal/#sec-temporal-totaldurationnanoseconds
BigInt* total_duration_nanoseconds(GlobalObject& global_object, double days, double hours, double minutes, double seconds, double milliseconds, double microseconds, BigInt const& nanoseconds, double offset_shift)
{
@ -446,7 +456,7 @@ Optional<BalancedDuration> balance_duration(GlobalObject& global_object, double
return BalancedDuration { .days = days, .hours = hours * sign, .minutes = minutes * sign, .seconds = seconds * sign, .milliseconds = milliseconds * sign, .microseconds = microseconds * sign, .nanoseconds = result_nanoseconds * sign };
}
// 7.5.19 ToLimitedTemporalDuration ( temporalDurationLike, disallowedFields ),https://tc39.es/proposal-temporal/#sec-temporal-tolimitedtemporalduration
// 7.5.20 ToLimitedTemporalDuration ( temporalDurationLike, disallowedFields ),https://tc39.es/proposal-temporal/#sec-temporal-tolimitedtemporalduration
Optional<TemporalDuration> to_limited_temporal_duration(GlobalObject& global_object, Value temporal_duration_like, Vector<StringView> const& disallowed_fields)
{
auto& vm = global_object.vm();

1
Userland/Libraries/LibJS/Runtime/Temporal/Duration.h
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@ -113,6 +113,7 @@ i8 duration_sign(double years, double months, double weeks, double days, double
bool is_valid_duration(double years, double months, double weeks, double days, double hours, double minutes, double seconds, double milliseconds, double microseconds, double nanoseconds);
PartialDuration to_partial_duration(GlobalObject&, Value temporal_duration_like);
Duration* create_temporal_duration(GlobalObject&, double years, double months, double weeks, double days, double hours, double minutes, double seconds, double milliseconds, double microseconds, double nanoseconds, FunctionObject* new_target = nullptr);
Duration* create_negated_temporal_duration(GlobalObject& global_object, Duration const& duration);
BigInt* total_duration_nanoseconds(GlobalObject&, double days, double hours, double minutes, double seconds, double milliseconds, double microseconds, BigInt const& nanoseconds, double offset_shift);
Optional<BalancedDuration> balance_duration(GlobalObject&, double days, double hours, double minutes, double seconds, double milliseconds, double microseconds, BigInt const& nanoseconds, String const& largest_unit, Object* relative_to = nullptr);
Optional<TemporalDuration> to_limited_temporal_duration(GlobalObject&, Value temporal_duration_like, Vector<StringView> const& disallowed_fields);

4
Userland/Libraries/LibJS/Runtime/Temporal/DurationPrototype.cpp
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@ -310,8 +310,8 @@ JS_DEFINE_NATIVE_FUNCTION(DurationPrototype::negated)
if (vm.exception())
return {};
// 3. Return ! CreateTemporalDuration(−duration.[[Years]], −duration.[[Months]], −duration.[[Weeks]], −duration.[[Days]], −duration.[[Hours]], −duration.[[Minutes]], −duration.[[Seconds]], −duration.[[Milliseconds]], −duration.[[Microseconds]], −duration.[[Nanoseconds]]).
return create_temporal_duration(global_object, -duration->years(), -duration->months(), -duration->weeks(), -duration->days(), -duration->hours(), -duration->minutes(), -duration->seconds(), -duration->milliseconds(), -duration->microseconds(), -duration->nanoseconds());
// 3. Return ! CreateNegatedTemporalDuration(duration).
return create_negated_temporal_duration(global_object, *duration);
}
// 7.3.17 Temporal.Duration.prototype.abs ( ), https://tc39.es/proposal-temporal/#sec-temporal.duration.prototype.abs

3
Userland/Libraries/LibJS/Tests/builtins/Temporal/Calendar/Calendar.prototype.dateAdd.js
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@ -3,7 +3,8 @@ describe("correct behavior", () => {
expect(Temporal.Calendar.prototype.dateAdd).toHaveLength(2);
});
test("basic functionality", () => {
// Asserts with TODO() since addition of partial balance_duration()
test.skip("basic functionality", () => {
const calendar = new Temporal.Calendar("iso8601");
const plainDate = new Temporal.PlainDate(1970, 1, 1);
const duration = new Temporal.Duration(1, 2, 3, 4);