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LibJS: Refactor Temporal since/until to common AOs

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This is an editorial change in the Temporal spec.

See: 85a9f57
This commit is contained in:
Linus Groh 2022-05-07 13:32:19 +02:00
parent fc6cf3cb9d
commit cc8f5151d7
19 changed files with 493 additions and 612 deletions
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85
Userland/Libraries/LibJS/Runtime/Temporal/ZonedDateTime.cpp
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@ -537,7 +537,90 @@ ThrowCompletionOr<NanosecondsToDaysResult> nanoseconds_to_days(GlobalObject& glo
return NanosecondsToDaysResult { .days = days, .nanoseconds = move(nanoseconds), .day_length = fabs(day_length_ns.to_double()) };
}
// 6.5.8 AddDurationToOrSubtractDurationFromZonedDateTime ( operation, zonedDateTime, temporalDurationLike, options ), https://tc39.es/proposal-temporal/#sec-temporal-adddurationtoOrsubtractdurationfromzoneddatetime
// 6.5.8 DifferenceTemporalZonedDateTime ( operation, zonedDateTime, other, options ), https://tc39.es/proposal-temporal/#sec-temporal-differencetemporalzoneddatetime
ThrowCompletionOr<Duration*> difference_temporal_zoned_date_time(GlobalObject& global_object, DifferenceOperation operation, ZonedDateTime& zoned_date_time, Value other_value, Value options_value)
{
auto& vm = global_object.vm();
// 1. If operation is since, let sign be -1. Otherwise, let sign be 1.
i8 sign = operation == DifferenceOperation::Since ? -1 : 1;
// 2. Set other to ? ToTemporalZonedDateTime(other).
auto* other = TRY(to_temporal_zoned_date_time(global_object, other_value));
// 3. If ? CalendarEquals(zonedDateTime.[[Calendar]], other.[[Calendar]]) is false, then
if (!TRY(calendar_equals(global_object, zoned_date_time.calendar(), other->calendar()))) {
// a. Throw a RangeError exception.
return vm.throw_completion<RangeError>(global_object, ErrorType::TemporalDifferentCalendars);
}
// 4. Set options to ? GetOptionsObject(options).
auto const* options = TRY(get_options_object(global_object, options_value));
// 5. Let smallestUnit be ? ToSmallestTemporalUnit(options, « », "nanosecond").
auto smallest_unit = TRY(to_smallest_temporal_unit(global_object, *options, {}, "nanosecond"sv));
// 6. Let defaultLargestUnit be ! LargerOfTwoTemporalUnits("hour", smallestUnit).
auto default_largest_unit = larger_of_two_temporal_units("hour"sv, *smallest_unit);
// 7. Let largestUnit be ? ToLargestTemporalUnit(options, « », "auto", defaultLargestUnit).
auto largest_unit = TRY(to_largest_temporal_unit(global_object, *options, {}, "auto"sv, default_largest_unit));
// 8. Perform ? ValidateTemporalUnitRange(largestUnit, smallestUnit).
TRY(validate_temporal_unit_range(global_object, *largest_unit, *smallest_unit));
// 9. Let roundingMode be ? ToTemporalRoundingMode(options, "trunc").
auto rounding_mode = TRY(to_temporal_rounding_mode(global_object, *options, "trunc"sv));
// 10. If operation is since, then
if (operation == DifferenceOperation::Since) {
// a. Set roundingMode to ! NegateTemporalRoundingMode(roundingMode).
rounding_mode = negate_temporal_rounding_mode(rounding_mode);
}
// 11. Let maximum be ! MaximumTemporalDurationRoundingIncrement(smallestUnit).
auto maximum = maximum_temporal_duration_rounding_increment(*smallest_unit);
// 12. Let roundingIncrement be ? ToTemporalRoundingIncrement(options, maximum, false).
auto rounding_increment = TRY(to_temporal_rounding_increment(global_object, *options, Optional<double>(maximum), false));
// 13. If largestUnit is not one of "year", "month", "week", or "day", then
if (!largest_unit->is_one_of("year"sv, "month"sv, "week"sv, "day"sv)) {
// a. Let differenceNs be ! DifferenceInstant(zonedDateTime.[[Nanoseconds]], other.[[Nanoseconds]], roundingIncrement, smallestUnit, roundingMode).
auto* difference_ns = difference_instant(global_object, zoned_date_time.nanoseconds(), other->nanoseconds(), rounding_increment, *smallest_unit, rounding_mode);
// b. Assert: The following steps cannot fail due to overflow in the Number domain because abs(differenceNs) ≤ 1.728 × 10^22.
// c. Let balanceResult be ! BalanceDuration(0, 0, 0, 0, 0, 0, differenceNs, largestUnit).
auto balance_result = MUST(balance_duration(global_object, 0, 0, 0, 0, 0, 0, difference_ns->big_integer(), *largest_unit));
// d. Return ! CreateTemporalDuration(0, 0, 0, 0, sign × balanceResult.[[Hours]], sign × balanceResult.[[Minutes]], sign × balanceResult.[[Seconds]], sign × balanceResult.[[Milliseconds]], sign × balanceResult.[[Microseconds]], sign × balanceResult.[[Nanoseconds]]).
return MUST(create_temporal_duration(global_object, 0, 0, 0, 0, sign * balance_result.hours, sign * balance_result.minutes, sign * balance_result.seconds, sign * balance_result.milliseconds, sign * balance_result.microseconds, sign * balance_result.nanoseconds));
}
// 14. If ? TimeZoneEquals(zonedDateTime.[[TimeZone]], other.[[TimeZone]]) is false, then
if (!TRY(time_zone_equals(global_object, zoned_date_time.time_zone(), other->time_zone()))) {
// a. Throw a RangeError exception.
return vm.throw_completion<RangeError>(global_object, ErrorType::TemporalDifferentTimeZones);
}
// 15. Let untilOptions be ? MergeLargestUnitOption(options, largestUnit).
auto* until_options = TRY(merge_largest_unit_option(global_object, options, *largest_unit));
// 16. Let difference be ? DifferenceZonedDateTime(zonedDateTime.[[Nanoseconds]], other.[[Nanoseconds]], zonedDateTime.[[TimeZone]], zonedDateTime.[[Calendar]], largestUnit, untilOptions).
auto difference = TRY(difference_zoned_date_time(global_object, zoned_date_time.nanoseconds(), other->nanoseconds(), zoned_date_time.time_zone(), zoned_date_time.calendar(), *largest_unit, until_options));
// 17. Let roundResult be (? RoundDuration(difference.[[Years]], difference.[[Months]], difference.[[Weeks]], difference.[[Days]], difference.[[Hours]], difference.[[Minutes]], difference.[[Seconds]], difference.[[Milliseconds]], difference.[[Microseconds]], difference.[[Nanoseconds]], roundingIncrement, smallestUnit, roundingMode, zonedDateTime)).[[DurationRecord]].
auto round_result = TRY(round_duration(global_object, difference.years, difference.months, difference.weeks, difference.days, difference.hours, difference.minutes, difference.seconds, difference.milliseconds, difference.microseconds, difference.nanoseconds, rounding_increment, *smallest_unit, rounding_mode, &zoned_date_time)).duration_record;
// 18. Let result be ? AdjustRoundedDurationDays(roundResult.[[Years]], roundResult.[[Months]], roundResult.[[Weeks]], roundResult.[[Days]], roundResult.[[Hours]], roundResult.[[Minutes]], roundResult.[[Seconds]], roundResult.[[Milliseconds]], roundResult.[[Microseconds]], roundResult.[[Nanoseconds]], roundingIncrement, smallestUnit, roundingMode, zonedDateTime).
auto result = TRY(adjust_rounded_duration_days(global_object, round_result.years, round_result.months, round_result.weeks, round_result.days, round_result.hours, round_result.minutes, round_result.seconds, round_result.milliseconds, round_result.microseconds, round_result.nanoseconds, rounding_increment, *smallest_unit, rounding_mode, &zoned_date_time));
// 19. Return ! CreateTemporalDuration(sign × result.[[Years]], sign × result.[[Months]], sign × result.[[Weeks]], sign × result.[[Days]], sign × result.[[Hours]], sign × result.[[Minutes]], sign × result.[[Seconds]], sign × result.[[Milliseconds]], sign × result.[[Microseconds]], sign × result.[[Nanoseconds]]).
return MUST(create_temporal_duration(global_object, sign * result.years, sign * result.months, sign * result.weeks, sign * result.days, sign * result.hours, sign * result.minutes, sign * result.seconds, sign * result.milliseconds, sign * result.microseconds, sign * result.nanoseconds));
}
// 6.5.9 AddDurationToOrSubtractDurationFromZonedDateTime ( operation, zonedDateTime, temporalDurationLike, options ), https://tc39.es/proposal-temporal/#sec-temporal-adddurationtoOrsubtractdurationfromzoneddatetime
ThrowCompletionOr<ZonedDateTime*> add_duration_to_or_subtract_duration_from_zoned_date_time(GlobalObject& global_object, ArithmeticOperation operation, ZonedDateTime& zoned_date_time, Value temporal_duration_like, Value options_value)
{
// 1. If operation is subtract, let sign be -1. Otherwise, let sign be 1.