Move date utility equations to a separate crate

Cargo.toml

@@ -30,6 +30,7 @@ exclude = [
 temporal = { version = "0.2.6", path = "./crates/temporal", default-features = false }
 timezone_provider = { version = "0.2.6", path = "./crates/provider", default-features = false }
 zoneinfo_rs = { version = "0.1.0", path = "./crates/zoneinfo", default-features = false }
+temporal_utils = { version = "0.2.6", path = "./crates/temporal_utils" }
 
 # Dependencies
 rustc-hash = "2.1.0"

crates/provider/Cargo.toml

@@ -52,6 +52,7 @@ zoneinfo64 = ["dep:zoneinfo64"]
 [dependencies]
 
 # Provider dependency
+temporal_utils = { workspace = true }
 zerotrie.workspace = true
 zerovec = { workspace = true, features = ["derive", "alloc"] }
 tinystr = { workspace = true, features = ["zerovec"] }

crates/provider/src/common.rs

@@ -1,9 +1,7 @@
 //! Common logic shared across TZif providers
 
-use crate::{
-    provider::{GapEntryOffsets, UtcOffsetSeconds},
-    utils,
-};
+use crate::provider::{GapEntryOffsets, UtcOffsetSeconds};
+use temporal_utils as utils;
 
 use core::ops::Range;
 

crates/provider/src/epoch_nanoseconds.rs

@@ -1,13 +1,13 @@
 use crate::TimeZoneProviderError;
 
+pub(crate) use temporal_utils::MS_PER_DAY;
+
 /// Number of nanoseconds in a day
 #[doc(hidden)]
 pub const NS_PER_DAY: u64 = MS_PER_DAY as u64 * 1_000_000;
 
 pub(crate) const NS_IN_S: i128 = 1_000_000_000;
 
-/// Milliseconds per day constant: 8.64e+7
-pub(crate) const MS_PER_DAY: u32 = 24 * 60 * 60 * 1000;
 /// Max Instant nanosecond constant
 #[doc(hidden)]
 pub(crate) const NS_MAX_INSTANT: i128 = NS_PER_DAY as i128 * 100_000_000i128;

crates/provider/src/experimental_tzif/posix.rs

@@ -5,8 +5,9 @@ use crate::{
     },
     epoch_nanoseconds::EpochNanoseconds,
     provider::{GapEntryOffsets, TimeZoneProviderResult, UtcOffsetSeconds},
-    utils, TimeZoneProviderError,
+    TimeZoneProviderError,
 };
+use temporal_utils as utils;
 
 use tinystr::TinyAsciiStr;
 #[cfg(feature = "datagen")]

crates/provider/src/experimental_tzif/provider.rs

@@ -14,8 +14,9 @@ use crate::{
         CandidateEpochNanoseconds, EpochNanosecondsAndOffset, GapEntryOffsets, ResolvedId,
         TimeZoneProviderResult, TimeZoneResolver, TransitionDirection, UtcOffsetSeconds,
     },
-    utils, TimeZoneProviderError,
+    TimeZoneProviderError,
 };
+use temporal_utils as utils;
 use zerofrom::ZeroFrom;
 
 #[derive(Debug, Default)]

crates/provider/src/lib.rs

@@ -90,9 +90,6 @@ pub mod epoch_nanoseconds;
 #[cfg(any(feature = "tzif", feature = "experimental_tzif"))]
 pub(crate) mod common;
 
-#[doc(hidden)]
-pub mod utils;
-
 mod error;
 pub mod provider;
 pub use error::TimeZoneProviderError;

crates/provider/src/provider.rs

@@ -5,10 +5,10 @@
 
 use core::str::FromStr;
 
-use crate::utils;
 use crate::CompiledNormalizer;
 use crate::{epoch_nanoseconds::EpochNanoseconds, TimeZoneProviderError};
 use alloc::borrow::Cow;
+use temporal_utils as utils;
 
 pub(crate) type TimeZoneProviderResult<T> = Result<T, TimeZoneProviderError>;
 

crates/provider/src/tzif.rs

@@ -58,7 +58,7 @@ use tzif::{
     },
 };
 
-use crate::utils;
+use temporal_utils as utils;
 
 use crate::provider::{
     CandidateEpochNanoseconds, GapEntryOffsets, IsoDateTime, NormalizerAndResolver, ResolvedId,

crates/temporal/Cargo.toml

@@ -14,6 +14,7 @@ exclude.workspace = true
 
 [dependencies]
 
+temporal_utils = { workspace = true }
 core_maths = "0.1.1"
 icu_calendar = { workspace = true, features = ["compiled_data"] }
 icu_locale_core.workspace = true

crates/temporal/src/utils.rs

@@ -1,16 +1,6 @@
 //! Utility date and time equations for Temporal
 
-pub(crate) use timezone_provider::utils::epoch_days_from_gregorian_date;
-
-// NOTE: Potentially add more of tests.
-
-// ==== Begin Date Equations ====
-
-pub(crate) const MS_PER_HOUR: i64 = 3_600_000;
-pub(crate) const MS_PER_MINUTE: i64 = 60_000;
-
-pub(crate) use timezone_provider::utils::{
-    epoch_days_to_epoch_ms, iso_days_in_month, ymd_from_epoch_milliseconds,
+pub(crate) use temporal_utils::{
+    epoch_days_from_gregorian_date, epoch_days_to_epoch_ms, iso_days_in_month,
+    ymd_from_epoch_milliseconds, MS_PER_HOUR, MS_PER_MINUTE,
 };
-
-// ==== End Calendar Equations ====

crates/temporal_utils/Cargo.toml

@@ -0,0 +1,21 @@
+[package]
+name = "temporal_utils"
+description = "Gregorian and ISO-calendar date equations"
+edition.workspace = true
+version.workspace = true
+rust-version.workspace = true
+authors.workspace = true
+license.workspace = true
+repository.workspace = true
+readme.workspace = true
+exclude.workspace = true
+include = [
+    "src/**/*.rs",
+    "Cargo.toml",
+    "LICENSE-Apache",
+    "LICENSE-MIT",
+    "README.md",
+]
+
+[package.metadata.docs.rs]
+all-features = true