RGBCube/serenity
1
Fork 0
mirror of https://github.com/RGBCube/serenity synced 2025-05-31 19:58:11 +00:00
Code Issues Activity Actions

LibJS: Remove check for Instant range before subtracting UTC offset

Browse source 
This is a normative change in the Temporal spec.

See: 5e2fecb
This commit is contained in:
Linus Groh 2022-06-23 19:38:38 +01:00
parent 9c31fee4b5
commit 34f02bed17
1 changed files with 4 additions and 10 deletions
Download patch file Download diff file Expand all files Collapse all files

14
Userland/Libraries/LibJS/Runtime/Temporal/Instant.cpp
View file

@ -118,25 +118,19 @@ ThrowCompletionOr<BigInt*> parse_temporal_instant(GlobalObject& global_object, S
// 5. Let utc be GetEpochFromISOParts(result.[[Year]], result.[[Month]], result.[[Day]], result.[[Hour]], result.[[Minute]], result.[[Second]], result.[[Millisecond]], result.[[Microsecond]], result.[[Nanosecond]]).
auto* utc = get_epoch_from_iso_parts(global_object, result.year, result.month, result.day, result.hour, result.minute, result.second, result.millisecond, result.microsecond, result.nanosecond);
// 6. If ℝ(utc) < nsMinInstant or ℝ(utc) > nsMaxInstant, then
if (utc->big_integer() < ns_min_instant || utc->big_integer() > ns_max_instant) {
// a. Throw a RangeError exception.
return vm.throw_completion<RangeError>(global_object, ErrorType::TemporalInvalidEpochNanoseconds);
}
// 7. Let offsetNanoseconds be ? ParseTimeZoneOffsetString(offsetString).
// 6. Let offsetNanoseconds be ? ParseTimeZoneOffsetString(offsetString).
auto offset_nanoseconds = TRY(parse_time_zone_offset_string(global_object, *offset_string));
// 8. Let result be utc - ℤ(offsetNanoseconds).
// 7. Let result be utc - ℤ(offsetNanoseconds).
auto* result_ns = js_bigint(vm, utc->big_integer().minus(Crypto::SignedBigInteger::create_from(offset_nanoseconds)));
// 9. If ! IsValidEpochNanoseconds(result) is false, then
// 8. If ! IsValidEpochNanoseconds(result) is false, then
if (!is_valid_epoch_nanoseconds(*result_ns)) {
// a. Throw a RangeError exception.
return vm.throw_completion<RangeError>(global_object, ErrorType::TemporalInvalidEpochNanoseconds);
}
// 10. Return result.
// 9. Return result.
return result_ns;
}