Split DateTimeFormat keys (#774)

components/datetime/src/datetime.rs

@@ -7,7 +7,10 @@ use crate::{
     format::datetime,
     options::DateTimeFormatOptions,
     pattern::PatternItem,
-    provider::{gregory::DatesV1Marker, helpers::DateTimePatterns},
+    provider::{
+        gregory::{DatePatternsV1Marker, DateSymbolsV1Marker},
+        helpers::DateTimePatterns,
+    },
 };
 use icu_locid::Locale;
 use icu_provider::prelude::*;
@@ -59,7 +62,7 @@ use crate::{
 pub struct DateTimeFormat<'d> {
     pub(super) locale: Locale,
     pub(super) pattern: Pattern,
-    pub(super) symbols: DataPayload<'d, 'd, provider::gregory::DateSymbolsV1Marker>,
+    pub(super) symbols: DataPayload<'d, 'd, DateSymbolsV1Marker>,
 }
 
 impl<'d> DateTimeFormat<'d> {
@@ -87,17 +90,19 @@ impl<'d> DateTimeFormat<'d> {
     /// ```
     pub fn try_new<
         T: Into<Locale>,
-        D: DataProvider<'d, 'd, provider::gregory::DatesV1Marker> + ?Sized,
+        D: DataProvider<'d, 'd, DateSymbolsV1Marker>
+            + DataProvider<'d, 'd, DatePatternsV1Marker>
+            + ?Sized,
     >(
         locale: T,
         data_provider: &D,
         options: &DateTimeFormatOptions,
     ) -> Result<Self, DateTimeFormatError> {
         let locale = locale.into();
-        let data = data_provider
+        let symbols_data = data_provider
             .load_payload(&DataRequest {
                 resource_path: ResourcePath {
-                    key: provider::key::GREGORY_V1,
+                    key: provider::key::GREGORY_DATE_SYMBOLS_V1,
                     options: ResourceOptions {
                         variant: None,
                         langid: Some(locale.clone().into()),
@@ -106,9 +111,24 @@ impl<'d> DateTimeFormat<'d> {
             })?
             .take_payload()?;
 
-        let pattern = data
+        let patterns_data: icu_provider::DataPayload<
+            '_,
+            '_,
+            provider::gregory::DatePatternsV1Marker,
+        > = data_provider
+            .load_payload(&DataRequest {
+                resource_path: ResourcePath {
+                    key: provider::key::GREGORY_DATE_PATTERNS_V1,
+                    options: ResourceOptions {
+                        variant: None,
+                        langid: Some(locale.clone().into()),
+                    },
+                },
+            })?
+            .take_payload()?;
+
+        let pattern = patterns_data
             .get()
-            .patterns
             .get_pattern_for_options(options)?
             .unwrap_or_default();
 
@@ -125,7 +145,7 @@ impl<'d> DateTimeFormat<'d> {
             return Err(DateTimeFormatError::UnsupportedField(field.symbol));
         }
 
-        Ok(Self::new(locale, pattern, data))
+        Ok(Self::new(locale, pattern, symbols_data))
     }
 
     /// Creates a new [`DateTimeFormat`] regardless of whether there are time-zone symbols in the pattern.
@@ -144,13 +164,10 @@ impl<'d> DateTimeFormat<'d> {
     pub(super) fn new<T: Into<Locale>>(
         locale: T,
         pattern: Pattern,
-        data: DataPayload<'d, 'd, DatesV1Marker>,
+        symbols: DataPayload<'d, 'd, DateSymbolsV1Marker>,
     ) -> Self {
         let locale = locale.into();
 
-        // TODO(#257): Avoid the need for this clone by splitting the keys.
-        let symbols = DataPayload::from_owned(data.get().symbols.clone());
-
         Self {
             locale,
             pattern,

components/datetime/src/format/datetime.rs

@@ -246,14 +246,14 @@ mod tests {
     #[cfg(feature = "provider_serde")]
     fn test_basic() {
         use crate::mock::datetime::MockDateTime;
-        use crate::provider::gregory::DatesV1Marker;
+        use crate::provider::gregory::DateSymbolsV1Marker;
         use icu_provider::prelude::*;
 
         let provider = icu_testdata::get_provider();
-        let data: DataPayload<DatesV1Marker> = provider
+        let data: DataPayload<DateSymbolsV1Marker> = provider
             .load_payload(&DataRequest {
                 resource_path: ResourcePath {
-                    key: provider::key::GREGORY_V1,
+                    key: provider::key::GREGORY_DATE_SYMBOLS_V1,
                     options: ResourceOptions {
                         variant: None,
                         langid: Some("en".parse().unwrap()),
@@ -268,7 +268,7 @@ mod tests {
         let mut sink = String::new();
         write_pattern(
             &pattern,
-            &data.get().symbols,
+            &data.get(),
             &datetime,
             &"und".parse().unwrap(),
             &mut sink,

components/datetime/src/provider/gregory.rs

@@ -4,23 +4,6 @@
 
 use std::borrow::Cow;
 
-#[derive(Debug, PartialEq, Clone, Default)]
-#[cfg_attr(
-    feature = "provider_serde",
-    derive(serde::Serialize, serde::Deserialize)
-)]
-pub struct DatesV1 {
-    pub symbols: DateSymbolsV1,
-
-    pub patterns: PatternsV1,
-}
-
-icu_provider::impl_data_marker_no_lifetime!(
-    DatesV1,
-    /// Marker type for [`DatesV1`]
-    DatesV1Marker
-);
-
 #[derive(Debug, PartialEq, Clone, Default)]
 #[cfg_attr(
     feature = "provider_serde",
@@ -45,14 +28,20 @@ icu_provider::impl_data_marker_no_lifetime!(
     feature = "provider_serde",
     derive(serde::Serialize, serde::Deserialize)
 )]
-pub struct PatternsV1 {
+pub struct DatePatternsV1 {
     pub date: patterns::LengthPatternsV1,
 
     pub time: patterns::LengthPatternsV1,
 
     pub datetime: patterns::DateTimeFormatsV1,
 }
 
+icu_provider::impl_data_marker_no_lifetime!(
+    DatePatternsV1,
+    /// Marker type for [`DatePatternsV1`]
+    DatePatternsV1Marker
+);
+
 macro_rules! symbols {
         ($name: ident, $expr: ty) => {
             pub mod $name {

components/datetime/src/provider/helpers.rs

@@ -52,7 +52,7 @@ pub trait DateTimeSymbols {
     ) -> &Cow<str>;
 }
 
-impl DateTimePatterns for provider::gregory::PatternsV1 {
+impl DateTimePatterns for provider::gregory::DatePatternsV1 {
     fn get_pattern_for_options(&self, options: &DateTimeFormatOptions) -> Result<Option<Pattern>> {
         match options {
             DateTimeFormatOptions::Length(bag) => self.get_pattern_for_length_bag(bag),

components/datetime/src/provider/mod.rs

@@ -12,7 +12,8 @@ pub mod time_zones;
 
 pub mod key {
     use icu_provider::{resource_key, ResourceKey};
-    pub const GREGORY_V1: ResourceKey = resource_key!(dates, "gregory", 1);
+    pub const GREGORY_DATE_PATTERNS_V1: ResourceKey = resource_key!(date_patterns, "gregory", 1);
+    pub const GREGORY_DATE_SYMBOLS_V1: ResourceKey = resource_key!(date_symbols, "gregory", 1);
     pub const TIMEZONE_FORMATS_V1: ResourceKey = resource_key!(time_zones, "formats", 1);
     pub const TIMEZONE_EXEMPLAR_CITIES_V1: ResourceKey =
         resource_key!(time_zones, "exemplar-cities", 1);

components/datetime/src/skeleton.rs

@@ -632,16 +632,16 @@ mod test {
     use crate::{
         fields::{Day, Field, FieldLength, Month, Weekday},
         options::components,
-        provider::{gregory::DatesV1Marker, key::GREGORY_V1},
+        provider::{gregory::DatePatternsV1Marker, key::GREGORY_DATE_PATTERNS_V1},
     };
 
-    fn get_data_payload() -> DataPayload<'static, 'static, DatesV1Marker> {
+    fn get_data_payload() -> DataPayload<'static, 'static, DatePatternsV1Marker> {
         let provider = icu_testdata::get_provider();
         let langid = langid!("en");
         provider
             .load_payload(&DataRequest {
                 resource_path: ResourcePath {
-                    key: GREGORY_V1,
+                    key: GREGORY_DATE_PATTERNS_V1,
                     options: ResourceOptions {
                         variant: None,
                         langid: Some(langid),
@@ -672,7 +672,7 @@ mod test {
         let data_provider = get_data_payload();
 
         match get_best_available_format_pattern(
-            &data_provider.get().patterns.datetime.skeletons,
+            &data_provider.get().datetime.skeletons,
             &requested_fields,
         ) {
             BestSkeleton::AllFieldsMatch(available_format_pattern)
@@ -699,7 +699,7 @@ mod test {
         let data_provider = get_data_payload();
 
         match get_best_available_format_pattern(
-            &data_provider.get().patterns.datetime.skeletons,
+            &data_provider.get().datetime.skeletons,
             &requested_fields,
         ) {
             BestSkeleton::MissingOrExtraFields(available_format_pattern) => {
@@ -724,8 +724,8 @@ mod test {
         let data_provider = get_data_payload();
 
         match create_best_pattern_for_fields(
-            &data_provider.get().patterns.datetime.skeletons,
-            &data_provider.get().patterns.datetime.length_patterns,
+            &data_provider.get().datetime.skeletons,
+            &data_provider.get().datetime.length_patterns,
             &requested_fields,
         ) {
             BestSkeleton::AllFieldsMatch(available_format_pattern) => {
@@ -748,7 +748,7 @@ mod test {
 
         assert_eq!(
             get_best_available_format_pattern(
-                &data_provider.get().patterns.datetime.skeletons,
+                &data_provider.get().datetime.skeletons,
                 &requested_fields
             ),
             BestSkeleton::NoMatch,
@@ -769,7 +769,7 @@ mod test {
 
         assert_eq!(
             get_best_available_format_pattern(
-                &data_provider.get().patterns.datetime.skeletons,
+                &data_provider.get().datetime.skeletons,
                 &requested_fields
             ),
             BestSkeleton::NoMatch,

components/datetime/src/zoned_datetime.rs

@@ -96,7 +96,9 @@ impl<'d> ZonedDateTimeFormat<'d> {
     ) -> Result<Self, DateTimeFormatError>
     where
         L: Into<Locale>,
-        DP: DataProvider<'d, 'd, provider::gregory::DatesV1Marker> + ?Sized,
+        DP: DataProvider<'d, 'd, provider::gregory::DatePatternsV1Marker>
+            + DataProvider<'d, 'd, provider::gregory::DateSymbolsV1Marker>
+            + ?Sized,
         ZP: DataProvider<'d, 'd, provider::time_zones::TimeZoneFormatsV1Marker>
             + DataProvider<'d, 'd, provider::time_zones::ExemplarCitiesV1Marker>
             + DataProvider<'d, 'd, provider::time_zones::MetaZoneGenericNamesLongV1Marker>
@@ -106,10 +108,30 @@ impl<'d> ZonedDateTimeFormat<'d> {
             + ?Sized,
     {
         let locale = locale.into();
-        let data = date_provider
+        let pattern_data: icu_provider::DataPayload<
+            '_,
+            '_,
+            provider::gregory::DatePatternsV1Marker,
+        > = date_provider
+            .load_payload(&DataRequest {
+                resource_path: ResourcePath {
+                    key: provider::key::GREGORY_DATE_PATTERNS_V1,
+                    options: ResourceOptions {
+                        variant: None,
+                        langid: Some(locale.clone().into()),
+                    },
+                },
+            })?
+            .take_payload()?;
+
+        let symbols_data: icu_provider::DataPayload<
+            '_,
+            '_,
+            provider::gregory::DateSymbolsV1Marker,
+        > = date_provider
             .load_payload(&DataRequest {
                 resource_path: ResourcePath {
-                    key: provider::key::GREGORY_V1,
+                    key: provider::key::GREGORY_DATE_SYMBOLS_V1,
                     options: ResourceOptions {
                         variant: None,
                         langid: Some(locale.clone().into()),
@@ -118,13 +140,12 @@ impl<'d> ZonedDateTimeFormat<'d> {
             })?
             .take_payload()?;
 
-        let pattern = data
+        let pattern = pattern_data
             .get()
-            .patterns
             .get_pattern_for_options(options)?
             .unwrap_or_default();
 
-        let datetime_format = DateTimeFormat::new(locale, pattern, data);
+        let datetime_format = DateTimeFormat::new(locale, pattern, symbols_data);
         let time_zone_format = TimeZoneFormat::try_new(
             datetime_format.locale.clone(),
             datetime_format.pattern.clone(),