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LibTimeZone+Userland: Change timezone functions to use UnixDateTime

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This incurs a whole host of changes in, among others, JavaScript Intl
and Date.
This commit is contained in:
kleines Filmröllchen 2023-03-13 22:28:08 +01:00 • committed by Jelle Raaijmakers
parent 939600d2d4
commit 82c681e44b
13 changed files with 43 additions and 43 deletions
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6
Userland/Libraries/LibJS/Runtime/Date.cpp
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@ -314,7 +314,7 @@ static i64 clip_bigint_to_sane_time(Crypto::SignedBigInteger const& value)
Vector<Crypto::SignedBigInteger> get_named_time_zone_epoch_nanoseconds(StringView time_zone_identifier, i32 year, u8 month, u8 day, u8 hour, u8 minute, u8 second, u16 millisecond, u16 microsecond, u16 nanosecond)
{
auto local_nanoseconds = get_utc_epoch_nanoseconds(year, month, day, hour, minute, second, millisecond, microsecond, nanosecond);
auto local_time = Duration::from_nanoseconds(clip_bigint_to_sane_time(local_nanoseconds));
auto local_time = UnixDateTime::from_nanoseconds_since_epoch(clip_bigint_to_sane_time(local_nanoseconds));
// FIXME: LibTimeZone does not behave exactly as the spec expects. It does not consider repeated or skipped time points.
auto offset = TimeZone::get_time_zone_offset(time_zone_identifier, local_time);
@ -332,10 +332,10 @@ i64 get_named_time_zone_offset_nanoseconds(StringView time_zone_identifier, Cryp
auto time_zone = TimeZone::time_zone_from_string(time_zone_identifier);
VERIFY(time_zone.has_value());
// Since Duration::from_seconds() and Duration::from_nanoseconds() both take an i64, converting to
// Since UnixDateTime::from_seconds_since_epoch() and UnixDateTime::from_nanoseconds_since_epoch() both take an i64, converting to
// seconds first gives us a greater range. The TZDB doesn't have sub-second offsets.
auto seconds = epoch_nanoseconds.divided_by(s_one_billion_bigint).quotient;
auto time = Duration::from_seconds(clip_bigint_to_sane_time(seconds));
auto time = UnixDateTime::from_seconds_since_epoch(clip_bigint_to_sane_time(seconds));
auto offset = TimeZone::get_time_zone_offset(*time_zone, time);
VERIFY(offset.has_value());