ffi

Author: robertbastian

ffi/capi/bindings/c/TimeZoneInfo.h

@@ -10,7 +10,7 @@ pub mod ffi {
     use core::fmt::Write;
     use icu_timezone::TimeZoneBcp47Id;
 
-    use crate::errors::ffi::TimeZoneInvalidOffsetError;
+    use crate::{datetime::ffi::IsoDateTime, errors::ffi::TimeZoneInvalidOffsetError};
 
     #[diplomat::opaque]
     #[diplomat::rust_link(icu::timezone::TimeZoneInfo, Struct)]
@@ -245,6 +245,26 @@ pub mod ffi {
         pub fn is_daylight_time(&self) -> Option<bool> {
             Some(self.0.zone_variant? == icu_timezone::ZoneVariant::daylight())
         }
+
+        /// Sets the `local_time` field.
+        #[diplomat::rust_link(icu::timezone::TimeZoneInfo::local_time, StructField)]
+        pub fn set_local_time(&mut self, datetime: &IsoDateTime) {
+            self.0.local_time = Some((datetime.0.date, datetime.0.time.clone()));
+        }
+
+        /// Clears the `local_time` field.
+        #[diplomat::rust_link(icu::timezone::TimeZoneInfo::local_time, StructField)]
+        pub fn clear_local_time(&mut self) {
+            self.0.local_time.take();
+        }
+
+        /// Returns a copy of the `local_time` field.
+        #[diplomat::rust_link(icu::timezone::TimeZoneInfo::local_time, StructField, compact)]
+        pub fn get_local_time(&self) -> Option<Box<IsoDateTime>> {
+            self.0
+                .local_time
+                .map(|(date, time)| Box::new(IsoDateTime(icu_calendar::DateTime { date, time })))
+        }
     }
 }
 

ffi/capi/bindings/cpp/icu4x/TimeZoneInfo.d.hpp

@@ -225,3 +225,6 @@ icu::timezone::WindowsTimeZoneMapperBorrowed#Struct
 icu::timezone::WindowsTimeZoneMapperBorrowed::new#FnInStruct
 icu::timezone::WindowsTimeZoneMapperBorrowed::windows_tz_to_bcp47_id#FnInStruct
 icu::timezone::WindowsTimeZoneMapperBorrowed::windows_tz_to_bcp47_id_with_region#FnInStruct
+icu::timezone::ZoneOffsetCalculator#Struct
+icu::timezone::ZoneOffsetCalculator::compute_offsets_from_time_zone#FnInStruct
+icu::timezone::ZoneOffsetCalculator::new#FnInStruct

ffi/capi/bindings/cpp/icu4x/TimeZoneInfo.hpp

@@ -62,20 +62,7 @@ int main() {
         return 1;
     }
 
-    std::unique_ptr<TimeZoneInfo> time_zone = TimeZoneInfo::unknown();
-    time_zone->try_set_offset_str("-05:00").ok().value();
-    int32_t offset = time_zone->offset_seconds().value();
-    if (offset != -18000) {
-        std::cout << "GMT offset doesn't parse" << std::endl;
-        return 1;
-    }
     std::unique_ptr<TimeZoneIdMapper> mapper = TimeZoneIdMapper::create(*dp.get()).ok().value();
-    time_zone->set_iana_time_zone_id(*mapper.get(), "america/chicago");
-    std::string time_zone_id_return = time_zone->time_zone_id();
-    if (time_zone_id_return != "uschi") {
-        std::cout << "Time zone ID does not roundtrip: " << time_zone_id_return << std::endl;
-        return 1;
-    }
     std::string normalized_iana_id = mapper->normalize_iana("America/CHICAGO").ok().value().value();
     if (normalized_iana_id != "America/Chicago") {
         std::cout << "Time zone ID does not normalize: " << normalized_iana_id << std::endl;
@@ -98,6 +85,21 @@ int main() {
         return 1;
     }
 
+    std::unique_ptr<TimeZoneInfo> time_zone = TimeZoneInfo::unknown();
+    time_zone->try_set_offset_str("-05:00").ok().value();
+    int32_t offset = time_zone->offset_seconds().value();
+    if (offset != -18000) {
+        std::cout << "GMT offset doesn't parse" << std::endl;
+        return 1;
+    }
+    time_zone->set_iana_time_zone_id(*mapper.get(), "america/chicago");
+    std::string time_zone_id_return = time_zone->time_zone_id();
+    if (time_zone_id_return != "uschi") {
+        std::cout << "Time zone ID does not roundtrip: " << time_zone_id_return << std::endl;
+        return 1;
+    }
+    time_zone->set_local_time(*date.get());
+
     std::unique_ptr<GregorianZonedDateTimeFormatter> gzdtf = GregorianZonedDateTimeFormatter::create_with_length(*dp.get(), *locale.get(), DateTimeLength::Long).ok().value();
     out = gzdtf->format_iso_datetime_with_custom_time_zone(*date.get(), *time_zone.get());
     std::cout << "Formatted value is " << out << std::endl;
@@ -106,6 +108,8 @@ int main() {
         return 1;
     }
 
+    time_zone->set_local_time(*any_date->to_iso().get());
+
     std::unique_ptr<ZonedDateTimeFormatter> zdtf = ZonedDateTimeFormatter::create_with_length(*dp.get(), *locale.get(), DateTimeLength::Long).ok().value();
     out = zdtf->format_datetime_with_custom_time_zone(*any_date.get(), *time_zone.get()).ok().value();
     std::cout << "Formatted value is " << out << std::endl;