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LibJS: Add missing check in ParseTemporalInstant

This is an editorial change in the Temporal spec.

See: baead4d
This commit is contained in:
Linus Groh 2022-03-10 19:47:38 +01:00
parent f75052ff7c
commit 55f9733316
2 changed files with 27 additions and 2 deletions

View file

@ -127,8 +127,17 @@ ThrowCompletionOr<BigInt*> parse_temporal_instant(GlobalObject& global_object, S
// 7. Let offsetNanoseconds be ? ParseTimeZoneOffsetString(offsetString).
auto offset_nanoseconds = TRY(parse_time_zone_offset_string(global_object, *offset_string));
// 8. Return utc offsetNanoseconds.
return js_bigint(vm, utc->big_integer().minus(Crypto::SignedBigInteger::create_from(offset_nanoseconds)));
// 8. Let result be utc offsetNanoseconds.
auto* result_ns = js_bigint(vm, utc->big_integer().minus(Crypto::SignedBigInteger::create_from(offset_nanoseconds)));
// 9. 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.
return result_ns;
}
// 8.5.5 CompareEpochNanoseconds ( epochNanosecondsOne, epochNanosecondsTwo ), https://tc39.es/proposal-temporal/#sec-temporal-compareepochnanoseconds