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LibJS: Convert get_iana_time_zone_epoch_value() to MarkedVector<BigInt*>

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Linus Groh 2022-02-09 09:42:59 +00:00
parent af7003ebd2
commit 1d32ac7b8b
3 changed files with 4 additions and 5 deletions
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5
Userland/Libraries/LibJS/Runtime/Temporal/TimeZone.cpp
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@ -144,15 +144,14 @@ ISODateTime get_iso_parts_from_epoch(BigInt const& epoch_nanoseconds)
}
// 11.6.3 GetIANATimeZoneEpochValue ( timeZoneIdentifier, year, month, day, hour, minute, second, millisecond, microsecond, nanosecond ), https://tc39.es/proposal-temporal/#sec-temporal-getianatimezoneepochvalue
MarkedValueList get_iana_time_zone_epoch_value(GlobalObject& global_object, [[maybe_unused]] StringView time_zone_identifier, i32 year, u8 month, u8 day, u8 hour, u8 minute, u8 second, u16 millisecond, u16 microsecond, u16 nanosecond)
MarkedVector<BigInt*> get_iana_time_zone_epoch_value(GlobalObject& global_object, [[maybe_unused]] StringView time_zone_identifier, i32 year, u8 month, u8 day, u8 hour, u8 minute, u8 second, u16 millisecond, u16 microsecond, u16 nanosecond)
{
// The abstract operation GetIANATimeZoneEpochValue is an implementation-defined algorithm that returns a List of integers. Each integer in the List represents a number of nanoseconds since the Unix epoch in UTC that may correspond to the given calendar date and wall-clock time in the IANA time zone identified by timeZoneIdentifier.
// When the input represents a local time repeating multiple times at a negative time zone transition (e.g. when the daylight saving time ends or the time zone offset is decreased due to a time zone rule change), the returned List will have more than one element. When the input represents a skipped local time at a positive time zone transition (e.g. when the daylight saving time starts or the time zone offset is increased due to a time zone rule change), the returned List will be empty. Otherwise, the returned List will have one element.
// FIXME: Implement this properly for non-UTC timezones.
// FIXME: MarkedValueList<T> for T != Value would still be nice.
auto& vm = global_object.vm();
auto list = MarkedValueList { vm.heap() };
auto list = MarkedVector<BigInt*> { vm.heap() };
list.append(get_epoch_from_iso_parts(global_object, year, month, day, hour, minute, second, millisecond, microsecond, nanosecond));
return list;
}

2
Userland/Libraries/LibJS/Runtime/Temporal/TimeZone.h
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@ -42,7 +42,7 @@ String default_time_zone();
ThrowCompletionOr<String> parse_temporal_time_zone(GlobalObject&, String const&);
ThrowCompletionOr<TimeZone*> create_temporal_time_zone(GlobalObject&, String const& identifier, FunctionObject const* new_target = nullptr);
ISODateTime get_iso_parts_from_epoch(BigInt const& epoch_nanoseconds);
MarkedValueList get_iana_time_zone_epoch_value(GlobalObject&, StringView time_zone_identifier, i32 year, u8 month, u8 day, u8 hour, u8 minute, u8 second, u16 millisecond, u16 microsecond, u16 nanosecond);
MarkedVector<BigInt*> get_iana_time_zone_epoch_value(GlobalObject&, StringView time_zone_identifier, i32 year, u8 month, u8 day, u8 hour, u8 minute, u8 second, u16 millisecond, u16 microsecond, u16 nanosecond);
i64 get_iana_time_zone_offset_nanoseconds(BigInt const& epoch_nanoseconds, String const& time_zone_identifier);
BigInt* get_iana_time_zone_next_transition(GlobalObject&, BigInt const& epoch_nanoseconds, StringView time_zone_identifier);
BigInt* get_iana_time_zone_previous_transition(GlobalObject&, BigInt const& epoch_nanoseconds, StringView time_zone_identifier);

2
Userland/Libraries/LibJS/Runtime/Temporal/TimeZonePrototype.cpp
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@ -156,7 +156,7 @@ JS_DEFINE_NATIVE_FUNCTION(TimeZonePrototype::get_possible_instants_for)
// 7. For each value epochNanoseconds in possibleEpochNanoseconds, do
for (auto& epoch_nanoseconds : possible_epoch_nanoseconds) {
// a. Let instant be ! CreateTemporalInstant(epochNanoseconds).
auto* instant = MUST(create_temporal_instant(global_object, epoch_nanoseconds.as_bigint()));
auto* instant = MUST(create_temporal_instant(global_object, *epoch_nanoseconds));
// b. Append instant to possibleInstants.
possible_instants.append(instant);