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LibJS: Refactor common option reading into the GetDifferenceSettings AO

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This is an editorial change in the Temporal spec.

See: 78abbb8
This commit is contained in:
Linus Groh 2022-06-24 00:27:29 +01:00
parent 05c5263ecc
commit ee0d5d6649
8 changed files with 141 additions and 264 deletions
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68
Userland/Libraries/LibJS/Runtime/Temporal/PlainYearMonth.cpp
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@ -264,79 +264,45 @@ ThrowCompletionOr<Duration*> difference_temporal_plain_year_month(GlobalObject&
if (!TRY(calendar_equals(global_object, calendar, other->calendar())))
return vm.throw_completion<RangeError>(global_object, ErrorType::TemporalDifferentCalendars);
// 5. Set options to ? GetOptionsObject(options).
auto const* options = TRY(get_options_object(global_object, options_value));
// 5. Let settings be ? GetDifferenceSettings(operation, options, date, « "week", "day" », "month", "year").
auto settings = TRY(get_difference_settings(global_object, operation, options_value, UnitGroup::Date, { "week"sv, "day"sv }, { "month"sv }, "year"sv));
// 6. Let smallestUnit be ? GetTemporalUnit(options, "smallestUnit", date, "month").
auto smallest_unit = TRY(get_temporal_unit(global_object, *options, vm.names.smallestUnit, UnitGroup::Date, { "month"sv }));
// 7. If smallestUnit is "week" or "day", throw a RangeError exception.
if (smallest_unit == "week"sv || smallest_unit == "day"sv)
return vm.throw_completion<RangeError>(global_object, ErrorType::OptionIsNotValidValue, *smallest_unit, "smallestUnit"sv);
// 8. Let largestUnit be ? GetTemporalUnit(options, "largestUnit", date, "auto").
auto largest_unit = TRY(get_temporal_unit(global_object, *options, vm.names.largestUnit, UnitGroup::Date, { "auto"sv }));
// 9. If largestUnit is "week" or "day", throw a RangeError exception.
if (largest_unit == "week"sv || largest_unit == "day"sv)
return vm.throw_completion<RangeError>(global_object, ErrorType::OptionIsNotValidValue, *largest_unit, "largestUnit"sv);
// 10. If largestUnit is "auto", set largestUnit to "year".
if (largest_unit == "auto"sv)
largest_unit = "year"sv;
// 11. If LargerOfTwoTemporalUnits(largestUnit, smallestUnit) is not largestUnit, throw a RangeError exception.
if (larger_of_two_temporal_units(*largest_unit, *smallest_unit) != largest_unit)
return vm.throw_completion<RangeError>(global_object, ErrorType::TemporalInvalidUnitRange, *smallest_unit, *largest_unit);
// 12. Let roundingMode be ? ToTemporalRoundingMode(options, "trunc").
auto rounding_mode = TRY(to_temporal_rounding_mode(global_object, *options, "trunc"sv));
// 13. If operation is since, then
if (operation == DifferenceOperation::Since) {
// a. Set roundingMode to ! NegateTemporalRoundingMode(roundingMode).
rounding_mode = negate_temporal_rounding_mode(rounding_mode);
}
// 14. Let roundingIncrement be ? ToTemporalRoundingIncrement(options, undefined, false).
auto rounding_increment = TRY(to_temporal_rounding_increment(global_object, *options, {}, false));
// 15. Let fieldNames be ? CalendarFields(calendar, « "monthCode", "year" »).
// 6. Let fieldNames be ? CalendarFields(calendar, « "monthCode", "year" »).
auto field_names = TRY(calendar_fields(global_object, calendar, { "monthCode"sv, "year"sv }));
// 16. Let otherFields be ? PrepareTemporalFields(other, fieldNames, «»).
// 7. Let otherFields be ? PrepareTemporalFields(other, fieldNames, «»).
auto* other_fields = TRY(prepare_temporal_fields(global_object, *other, field_names, Vector<StringView> {}));
// 17. Perform ! CreateDataPropertyOrThrow(otherFields, "day", 1𝔽).
// 8. Perform ! CreateDataPropertyOrThrow(otherFields, "day", 1𝔽).
MUST(other_fields->create_data_property_or_throw(vm.names.day, Value(1)));
// 18. Let otherDate be ? CalendarDateFromFields(calendar, otherFields).
// 9. Let otherDate be ? CalendarDateFromFields(calendar, otherFields).
auto* other_date = TRY(calendar_date_from_fields(global_object, calendar, *other_fields));
// 19. Let thisFields be ? PrepareTemporalFields(yearMonth, fieldNames, «»).
// 10. Let thisFields be ? PrepareTemporalFields(yearMonth, fieldNames, «»).
auto* this_fields = TRY(prepare_temporal_fields(global_object, year_month, field_names, Vector<StringView> {}));
// 20. Perform ! CreateDataPropertyOrThrow(thisFields, "day", 1𝔽).
// 11. Perform ! CreateDataPropertyOrThrow(thisFields, "day", 1𝔽).
MUST(this_fields->create_data_property_or_throw(vm.names.day, Value(1)));
// 21. Let thisDate be ? CalendarDateFromFields(calendar, thisFields).
// 12. Let thisDate be ? CalendarDateFromFields(calendar, thisFields).
auto* this_date = TRY(calendar_date_from_fields(global_object, calendar, *this_fields));
// 22. Let untilOptions be ? MergeLargestUnitOption(options, largestUnit).
auto* until_options = TRY(merge_largest_unit_option(global_object, *options, *largest_unit));
// 13. Let untilOptions be ? MergeLargestUnitOption(settings.[[Options]], settings.[[LargestUnit]]).
auto* until_options = TRY(merge_largest_unit_option(global_object, settings.options, settings.largest_unit));
// 23. Let result be ? CalendarDateUntil(calendar, thisDate, otherDate, untilOptions).
// 14. Let result be ? CalendarDateUntil(calendar, thisDate, otherDate, untilOptions).
auto* duration = TRY(calendar_date_until(global_object, calendar, this_date, other_date, *until_options));
auto result = DurationRecord { duration->years(), duration->months(), 0, 0, 0, 0, 0, 0, 0, 0 };
// 24. If smallestUnit is not "month" or roundingIncrement ≠ 1, then
if (smallest_unit != "month"sv || rounding_increment != 1) {
// a. Set result to (? RoundDuration(result.[[Years]], result.[[Months]], 0, 0, 0, 0, 0, 0, 0, 0, roundingIncrement, smallestUnit, roundingMode, thisDate)).[[DurationRecord]].
result = TRY(round_duration(global_object, result.years, result.months, 0, 0, 0, 0, 0, 0, 0, 0, rounding_increment, *smallest_unit, rounding_mode, this_date)).duration_record;
// 15. If settings.[[SmallestUnit]] is not "month" or settings.[[RoundingIncrement]] ≠ 1, then
if (settings.smallest_unit != "month"sv || settings.rounding_increment != 1) {
// a. Set result to (? RoundDuration(result.[[Years]], result.[[Months]], 0, 0, 0, 0, 0, 0, 0, 0, settings.[[RoundingIncrement]], settings.[[SmallestUnit]], settings.[[RoundingMode]], thisDate)).[[DurationRecord]].
result = TRY(round_duration(global_object, result.years, result.months, 0, 0, 0, 0, 0, 0, 0, 0, settings.rounding_increment, settings.smallest_unit, settings.rounding_mode, this_date)).duration_record;
}
// 25. Return ! CreateTemporalDuration(sign × result.[[Years]], sign × result.[[Months]], 0, 0, 0, 0, 0, 0, 0, 0).
// 16. Return ! CreateTemporalDuration(sign × result.[[Years]], sign × result.[[Months]], 0, 0, 0, 0, 0, 0, 0, 0).
return MUST(create_temporal_duration(global_object, sign * result.years, sign * result.months, 0, 0, 0, 0, 0, 0, 0, 0));
}