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LibJS/Temporal: Unroll the loop in to_temporal_duration_record

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This is an editorial change in the Temporal spec.
See: 8e80575
This commit is contained in:
Jonah 2022-11-13 15:24:42 -06:00 • committed by Linus Groh
parent 912867526b
commit 00da2e86e6
2 changed files with 38 additions and 34 deletions
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55
Userland/Libraries/LibJS/Runtime/Temporal/Duration.cpp
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@ -162,32 +162,53 @@ ThrowCompletionOr<DurationRecord> to_temporal_duration_record(VM& vm, Value temp
// 4. Let partial be ? ToTemporalPartialDurationRecord(temporalDurationLike).
auto partial = TRY(to_temporal_partial_duration_record(vm, temporal_duration_like));
auto duration_record_fields = temporal_duration_record_fields<DurationRecord, double>(vm);
auto partial_duration_record_fields = temporal_duration_record_fields<PartialDurationRecord, Optional<double>>(vm);
// 5. If partial.[[Years]] is not undefined, set result.[[Years]] to partial.[[Years]].
if (partial.years.has_value())
result.years = partial.years.value();
// 5. For each row of Table 8, except the header row, do
for (size_t i = 0; i < duration_record_fields.size(); ++i) {
// a. Let fieldName be the Field Name value of the current row.
auto field_name = duration_record_fields[i].field_name;
auto partial_field_name = partial_duration_record_fields[i].field_name;
// 6. If partial.[[Months]] is not undefined, set result.[[Months]] to partial.[[Months]].
if (partial.months.has_value())
result.months = partial.months.value();
// b. Let value be the value of the field of partial whose name is fieldName.
auto value = partial.*partial_field_name;
// 7. If partial.[[Weeks]] is not undefined, set result.[[Weeks]] to partial.[[Weeks]].
if (partial.weeks.has_value())
result.weeks = partial.weeks.value();
// c. If value is not undefined, then
if (value.has_value()) {
// i. Set the field of result whose name is fieldName to value.
result.*field_name = *value;
}
}
// 8. If partial.[[Days]] is not undefined, set result.[[Days]] to partial.[[Days]].
if (partial.days.has_value())
result.days = partial.days.value();
// 6. If ! IsValidDuration(result.[[Years]], result.[[Months]], result.[[Weeks]], result.[[Days]], result.[[Hours]], result.[[Minutes]], result.[[Seconds]], result.[[Milliseconds]], result.[[Microseconds]], result.[[Nanoseconds]]) is false, then
// 9. If partial.[[Hours]] is not undefined, set result.[[Hours]] to partial.[[Hours]].
if (partial.hours.has_value())
result.hours = partial.hours.value();
// 10. If partial.[[Minutes]] is not undefined, set result.[[Minutes]] to partial.[[Minutes]].
if (partial.minutes.has_value())
result.minutes = partial.minutes.value();
// 11. If partial.[[Seconds]] is not undefined, set result.[[Seconds]] to partial.[[Seconds]].
if (partial.seconds.has_value())
result.seconds = partial.seconds.value();
// 12. If partial.[[Milliseconds]] is not undefined, set result.[[Milliseconds]] to partial.[[Milliseconds]].
if (partial.milliseconds.has_value())
result.milliseconds = partial.milliseconds.value();
// 13. If partial.[[Microseconds]] is not undefined, set result.[[Microseconds]] to partial.[[Microseconds]].
if (partial.microseconds.has_value())
result.microseconds = partial.microseconds.value();
// 14. If partial.[[Nanoseconds]] is not undefined, set result.[[Nanoseconds]] to partial.[[Nanoseconds]].
if (partial.nanoseconds.has_value())
result.nanoseconds = partial.nanoseconds.value();
// 15. If ! IsValidDuration(result.[[Years]], result.[[Months]], result.[[Weeks]], result.[[Days]], result.[[Hours]], result.[[Minutes]], result.[[Seconds]], result.[[Milliseconds]], result.[[Microseconds]], result.[[Nanoseconds]]) is false, then
if (!is_valid_duration(result.years, result.months, result.weeks, result.days, result.hours, result.minutes, result.seconds, result.milliseconds, result.microseconds, result.nanoseconds)) {
// a. Throw a RangeError exception.
return vm.throw_completion<RangeError>(ErrorType::TemporalInvalidDuration);
}
// 7. Return result.
// 16. Return result.
return result;
}