RGBCube/serenity
1
Fork 0
mirror of https://github.com/RGBCube/serenity synced 2025-07-27 13:47:35 +00:00
Code Issues Activity Actions

LibJS: Refactor Temporal since/until to common AOs

Browse source 
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
Download patch file Download diff file Expand all files Collapse all files

63
Userland/Libraries/LibJS/Runtime/Temporal/PlainTime.cpp
View file

@ -619,7 +619,68 @@ DaysAndTime round_time(u8 hour, u8 minute, u8 second, u16 millisecond, u16 micro
return balance_time(hour, minute, second, millisecond, microsecond, result);
}
// 4.5.14 AddDurationToOrSubtractDurationFromPlainTime ( operation, temporalTime, temporalDurationLike ), https://tc39.es/proposal-temporal/#sec-temporal-adddurationtoorsubtractdurationfromplaintime
// 4.5.14 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)
{
// 1. If operation is since, let sign be -1. Otherwise, let sign be 1.
i8 sign = operation == DifferenceOperation::Since ? -1 : 1;
PlainTime const* first;
PlainTime const* second;
// 2. Set other to ? ToTemporalTime(other).
auto* other = TRY(to_temporal_time(global_object, other_value));
// FIXME: Copied from DifferenceTemporalInstant, also needed here (spec issue, see https://github.com/tc39/proposal-temporal/pull/2184)
if (operation == DifferenceOperation::Until) {
first = &temporal_time;
second = other;
} else {
first = other;
second = &temporal_time;
}
// 3. Set options to ? GetOptionsObject(options).
auto const* options = TRY(get_options_object(global_object, options_value));
// 4. Let smallestUnit be ? ToSmallestTemporalUnit(options, « "year", "month", "week", "day" », "nanosecond").
auto smallest_unit = TRY(to_smallest_temporal_unit(global_object, *options, { "year"sv, "month"sv, "week"sv, "day"sv }, "nanosecond"sv));
// 5. Let largestUnit be ? ToLargestTemporalUnit(options, « "year", "month", "week", "day" », "auto", "hour").
auto largest_unit = TRY(to_largest_temporal_unit(global_object, *options, { "year"sv, "month"sv, "week"sv, "day"sv }, "auto"sv, "hour"sv));
// 6. Perform ? ValidateTemporalUnitRange(largestUnit, smallestUnit).
TRY(validate_temporal_unit_range(global_object, *largest_unit, *smallest_unit));
// 7. Let roundingMode be ? ToTemporalRoundingMode(options, "trunc").
auto rounding_mode = TRY(to_temporal_rounding_mode(global_object, *options, "trunc"sv));
// 8. If operation is since, then
if (operation == DifferenceOperation::Since) {
// a. Set roundingMode to ! NegateTemporalRoundingMode(roundingMode).
rounding_mode = negate_temporal_rounding_mode(rounding_mode);
}
// 9. Let maximum be ! MaximumTemporalDurationRoundingIncrement(smallestUnit).
auto maximum = maximum_temporal_duration_rounding_increment(*smallest_unit);
// 10. Let roundingIncrement be ? ToTemporalRoundingIncrement(options, maximum, false).
auto rounding_increment = TRY(to_temporal_rounding_increment(global_object, *options, Optional<double>(maximum), false));
// 11. Let result be ! DifferenceTime(other.[[ISOHour]], other.[[ISOMinute]], other.[[ISOSecond]], other.[[ISOMillisecond]], other.[[ISOMicrosecond]], other.[[ISONanosecond]], temporalTime.[[ISOHour]], temporalTime.[[ISOMinute]], temporalTime.[[ISOSecond]], temporalTime.[[ISOMillisecond]], temporalTime.[[ISOMicrosecond]], temporalTime.[[ISONanosecond]]).
auto result = difference_time(first->iso_hour(), first->iso_minute(), first->iso_second(), first->iso_millisecond(), first->iso_microsecond(), first->iso_nanosecond(), second->iso_hour(), second->iso_minute(), second->iso_second(), second->iso_millisecond(), second->iso_microsecond(), second->iso_nanosecond());
// 12. Set result to (? RoundDuration(0, 0, 0, 0, sign × result.[[Hours]], sign × result.[[Minutes]], sign × result.[[Seconds]], sign × result.[[Milliseconds]], sign × result.[[Microseconds]], sign × result.[[Nanoseconds]], roundingIncrement, smallestUnit, roundingMode)).[[DurationRecord]].
auto rounded_result = TRY(round_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, rounding_increment, *smallest_unit, rounding_mode)).duration_record;
// 13. Set result to ? BalanceDuration(0, sign × result.[[Hours]], sign × result.[[Minutes]], sign × result.[[Seconds]], sign × result.[[Milliseconds]], sign × result.[[Microseconds]], sign × result.[[Nanoseconds]], largestUnit).
result = MUST(balance_duration(global_object, 0, sign * rounded_result.hours, sign * rounded_result.minutes, sign * rounded_result.seconds, sign * rounded_result.milliseconds, sign * rounded_result.microseconds, Crypto::SignedBigInteger { (i32)(sign * rounded_result.nanoseconds) }, *largest_unit));
// 14. Return ! CreateTemporalDuration(0, 0, 0, 0, result.[[Hours]], result.[[Minutes]], result.[[Seconds]], result.[[Milliseconds]], result.[[Microseconds]], result.[[Nanoseconds]]).
return MUST(create_temporal_duration(global_object, 0, 0, 0, 0, result.hours, result.minutes, result.seconds, result.milliseconds, result.microseconds, result.nanoseconds));
}
// 4.5.15 AddDurationToOrSubtractDurationFromPlainTime ( operation, temporalTime, temporalDurationLike ), https://tc39.es/proposal-temporal/#sec-temporal-adddurationtoorsubtractdurationfromplaintime
ThrowCompletionOr<PlainTime*> add_duration_to_or_subtract_duration_from_plain_time(GlobalObject& global_object, ArithmeticOperation operation, PlainTime const& temporal_time, Value temporal_duration_like)
{
// 1. If operation is subtract, let sign be -1. Otherwise, let sign be 1.