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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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47
Userland/Libraries/LibJS/Runtime/Temporal/PlainTime.cpp
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@ -579,56 +579,25 @@ DaysAndTime round_time(u8 hour, u8 minute, u8 second, u16 millisecond, u16 micro
// 4.5.13 DifferenceTemporalPlainTime ( operation, temporalTime, other, options ), https://tc39.es/proposal-temporal/#sec-temporal-differencetemporalplaintime
ThrowCompletionOr<Duration*> difference_temporal_plain_time(GlobalObject& global_object, DifferenceOperation operation, PlainTime const& temporal_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 ? ToTemporalTime(other).
auto* other = TRY(to_temporal_time(global_object, other_value));
// 3. Set options to ? GetOptionsObject(options).
auto const* options = TRY(get_options_object(global_object, options_value));
// 3. Let settings be ? GetDifferenceSettings(operation, options, time, « », "nanosecond", "hour").
auto settings = TRY(get_difference_settings(global_object, operation, options_value, UnitGroup::Time, {}, { "nanosecond"sv }, "hour"sv));
// 4. Let smallestUnit be ? GetTemporalUnit(options, "smallestUnit", time, "nanosecond").
auto smallest_unit = TRY(get_temporal_unit(global_object, *options, vm.names.smallestUnit, UnitGroup::Time, { "nanosecond"sv }));
// 5. Let largestUnit be ? GetTemporalUnit(options, "largestUnit", time, "auto").
auto largest_unit = TRY(get_temporal_unit(global_object, *options, vm.names.largestUnit, UnitGroup::Time, { "auto"sv }));
// 6. If largestUnit is "auto", set largestUnit to "hour".
if (largest_unit == "auto"sv)
largest_unit = "hour"sv;
// 7. 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);
// 8. Let roundingMode be ? ToTemporalRoundingMode(options, "trunc").
auto rounding_mode = TRY(to_temporal_rounding_mode(global_object, *options, "trunc"sv));
// 9. If operation is since, then
if (operation == DifferenceOperation::Since) {
// a. Set roundingMode to ! NegateTemporalRoundingMode(roundingMode).
rounding_mode = negate_temporal_rounding_mode(rounding_mode);
}
// 10. Let maximum be ! MaximumTemporalDurationRoundingIncrement(smallestUnit).
auto maximum = maximum_temporal_duration_rounding_increment(*smallest_unit);
// 11. Let roundingIncrement be ? ToTemporalRoundingIncrement(options, maximum, false).
auto rounding_increment = TRY(to_temporal_rounding_increment(global_object, *options, Optional<double>(maximum), false));
// 12. Let result be ! DifferenceTime(temporalTime.[[ISOHour]], temporalTime.[[ISOMinute]], temporalTime.[[ISOSecond]], temporalTime.[[ISOMillisecond]], temporalTime.[[ISOMicrosecond]], temporalTime.[[ISONanosecond]], other.[[ISOHour]], other.[[ISOMinute]], other.[[ISOSecond]], other.[[ISOMillisecond]], other.[[ISOMicrosecond]], other.[[ISONanosecond]]).
// 4. Let result be ! DifferenceTime(temporalTime.[[ISOHour]], temporalTime.[[ISOMinute]], temporalTime.[[ISOSecond]], temporalTime.[[ISOMillisecond]], temporalTime.[[ISOMicrosecond]], temporalTime.[[ISONanosecond]], other.[[ISOHour]], other.[[ISOMinute]], other.[[ISOSecond]], other.[[ISOMillisecond]], other.[[ISOMicrosecond]], other.[[ISONanosecond]]).
auto result = difference_time(temporal_time.iso_hour(), temporal_time.iso_minute(), temporal_time.iso_second(), temporal_time.iso_millisecond(), temporal_time.iso_microsecond(), temporal_time.iso_nanosecond(), other->iso_hour(), other->iso_minute(), other->iso_second(), other->iso_millisecond(), other->iso_microsecond(), other->iso_nanosecond());
// 13. Set result to (! RoundDuration(0, 0, 0, 0, result.[[Hours]], result.[[Minutes]], result.[[Seconds]], result.[[Milliseconds]], result.[[Microseconds]], result.[[Nanoseconds]], roundingIncrement, smallestUnit, roundingMode)).[[DurationRecord]].
auto rounded_result = MUST(round_duration(global_object, 0, 0, 0, 0, result.hours, result.minutes, result.seconds, result.milliseconds, result.microseconds, result.nanoseconds, rounding_increment, *smallest_unit, rounding_mode)).duration_record;
// 5. Set result to (! RoundDuration(0, 0, 0, 0, result.[[Hours]], result.[[Minutes]], result.[[Seconds]], result.[[Milliseconds]], result.[[Microseconds]], result.[[Nanoseconds]], settings.[[RoundingIncrement]], settings.[[SmallestUnit]], settings.[[RoundingMode]])).[[DurationRecord]].
auto rounded_result = MUST(round_duration(global_object, 0, 0, 0, 0, result.hours, result.minutes, result.seconds, result.milliseconds, result.microseconds, result.nanoseconds, settings.rounding_increment, settings.smallest_unit, settings.rounding_mode)).duration_record;
// 14. Set result to ! BalanceDuration(0, result.[[Hours]], result.[[Minutes]], result.[[Seconds]], result.[[Milliseconds]], result.[[Microseconds]], result.[[Nanoseconds]], largestUnit).
result = MUST(balance_duration(global_object, 0, rounded_result.hours, rounded_result.minutes, rounded_result.seconds, rounded_result.milliseconds, rounded_result.microseconds, Crypto::SignedBigInteger { (i32)rounded_result.nanoseconds }, *largest_unit));
// 6. Set result to ! BalanceDuration(0, result.[[Hours]], result.[[Minutes]], result.[[Seconds]], result.[[Milliseconds]], result.[[Microseconds]], result.[[Nanoseconds]], settings.[[LargestUnit]]).
result = MUST(balance_duration(global_object, 0, rounded_result.hours, rounded_result.minutes, rounded_result.seconds, rounded_result.milliseconds, rounded_result.microseconds, Crypto::SignedBigInteger { (i32)rounded_result.nanoseconds }, settings.largest_unit));
// 15. Return ! CreateTemporalDuration(0, 0, 0, 0, sign × result.[[Hours]], sign × result.[[Minutes]], sign × result.[[Seconds]], sign × result.[[Milliseconds]], sign × result.[[Microseconds]], sign × result.[[Nanoseconds]]).
// 7. Return ! CreateTemporalDuration(0, 0, 0, 0, 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, 0, 0, 0, 0, sign * result.hours, sign * result.minutes, sign * result.seconds, sign * result.milliseconds, sign * result.microseconds, sign * result.nanoseconds));
}