implement thiserror::Error for StdTimestampError

Cargo.toml

@@ -16,6 +16,7 @@ categories = ["aerospace", "aerospace::space-protocols", "no-std", "hardware-sup
 zerocopy = "0.6"
 crc = "3"
 delegate = ">=0.8, <0.11"
+thiserror = "1"
 
 [dependencies.num_enum]
 version = "0.6"

src/time/cds.rs

@@ -17,6 +17,9 @@ use core::ops::{Add, AddAssign};
 use core::time::Duration;
 use delegate::delegate;
 
+#[cfg(feature = "std")]
+use std_mod::*;
+
 /// Base value for the preamble field for a time field parser to determine the time field type.
 pub const P_FIELD_BASE: u8 = (CcsdsTimeCodes::Cds as u8) << 4;
 pub const MIN_CDS_FIELD_LEN: usize = 7;

src/time/cuc.rs

@@ -3,6 +3,7 @@
 //!
 //! The core data structure to do this is the [TimeProviderCcsdsEpoch] struct.
 use super::*;
+use crate::time::std_mod::StdTimestampError;
 use chrono::Datelike;
 use core::fmt::Debug;
 use core::ops::{Add, AddAssign};

src/time/mod.rs

@@ -71,40 +71,6 @@ pub enum TimestampError {
     CustomEpochNotSupported,
 }
 
-impl From<cds::CdsError> for TimestampError {
-    fn from(e: cds::CdsError) -> Self {
-        TimestampError::CdsError(e)
-    }
-}
-
-impl From<cuc::CucError> for TimestampError {
-    fn from(e: cuc::CucError) -> Self {
-        TimestampError::CucError(e)
-    }
-}
-
-#[cfg(feature = "std")]
-#[cfg_attr(doc_cfg, doc(cfg(feature = "std")))]
-#[derive(Debug, Clone)]
-pub enum StdTimestampError {
-    SystemTimeError(SystemTimeError),
-    TimestampError(TimestampError),
-}
-
-#[cfg(feature = "std")]
-impl From<TimestampError> for StdTimestampError {
-    fn from(v: TimestampError) -> Self {
-        Self::TimestampError(v)
-    }
-}
-
-#[cfg(feature = "std")]
-impl From<SystemTimeError> for StdTimestampError {
-    fn from(v: SystemTimeError) -> Self {
-        Self::SystemTimeError(v)
-    }
-}
-
 impl Display for TimestampError {
     fn fmt(&self, f: &mut Formatter<'_>) -> core::fmt::Result {
         match self {
@@ -144,6 +110,33 @@ impl Error for TimestampError {
         }
     }
 }
+impl From<cds::CdsError> for TimestampError {
+    fn from(e: cds::CdsError) -> Self {
+        TimestampError::CdsError(e)
+    }
+}
+
+impl From<cuc::CucError> for TimestampError {
+    fn from(e: cuc::CucError) -> Self {
+        TimestampError::CucError(e)
+    }
+}
+
+#[cfg(feature = "std")]
+#[cfg_attr(doc_cfg, doc(cfg(feature = "std")))]
+pub mod std_mod {
+    use crate::time::TimestampError;
+    use std::time::SystemTimeError;
+    use thiserror::Error;
+
+    #[derive(Debug, Clone, Error)]
+    pub enum StdTimestampError {
+        #[error("system time error: {0}")]
+        SystemTimeError(#[from] SystemTimeError),
+        #[error("timestamp error: {0}")]
+        TimestampError(#[from] TimestampError),
+    }
+}
 
 #[cfg(feature = "std")]
 #[cfg_attr(doc_cfg, doc(cfg(feature = "std")))]