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LibJS: Refactor Temporal add/subtract to common AOs

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This is an editorial change in the Temporal spec.

See:
- 2f96efc
- fbff635
This commit is contained in:
Linus Groh 2022-05-06 19:01:15 +02:00
parent 875093e6a9
commit 3729a910f6
19 changed files with 259 additions and 280 deletions
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19
Userland/Libraries/LibJS/Runtime/Temporal/PlainTime.cpp
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@ -618,4 +618,23 @@ 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
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.
i8 sign = operation == ArithmeticOperation::Subtract ? -1 : 1;
// 2. Let duration be ? ToTemporalDurationRecord(temporalDurationLike).
auto duration = TRY(to_temporal_duration_record(global_object, temporal_duration_like));
// 3. Let result be ! AddTime(temporalTime.[[ISOHour]], temporalTime.[[ISOMinute]], temporalTime.[[ISOSecond]], temporalTime.[[ISOMillisecond]], temporalTime.[[ISOMicrosecond]], temporalTime.[[ISONanosecond]], sign × duration.[[Hours]], sign × duration.[[Minutes]], sign × duration.[[Seconds]], sign × duration.[[Milliseconds]], sign × duration.[[Microseconds]], sign × duration.[[Nanoseconds]]).
auto result = add_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(), sign * duration.hours, sign * duration.minutes, sign * duration.seconds, sign * duration.milliseconds, sign * duration.microseconds, sign * duration.nanoseconds);
// 4. Assert: IsValidTime(result.[[Hour]], result.[[Minute]], result.[[Second]], result.[[Millisecond]], result.[[Microsecond]], result.[[Nanosecond]]) is true.
VERIFY(is_valid_time(result.hour, result.minute, result.second, result.millisecond, result.microsecond, result.nanosecond));
// 5. Return ? CreateTemporalTime(result.[[Hour]], result.[[Minute]], result.[[Second]], result.[[Millisecond]], result.[[Microsecond]], result.[[Nanosecond]]).
return TRY(create_temporal_time(global_object, result.hour, result.minute, result.second, result.millisecond, result.microsecond, result.nanosecond));
}
}