error: use derive-more Error for deriving error (#10841)

crates/net/p2p/src/error.rs

@@ -1,7 +1,7 @@
 use std::ops::RangeInclusive;
 
 use super::headers::client::HeadersRequest;
-use derive_more::Display;
+use derive_more::{Display, Error};
 use reth_consensus::ConsensusError;
 use reth_network_peers::WithPeerId;
 use reth_network_types::ReputationChangeKind;
@@ -76,7 +76,7 @@ impl EthResponseValidator for RequestResult<Vec<Header>> {
 /// Error variants that can happen when sending requests to a session.
 ///
 /// Represents errors encountered when sending requests.
-#[derive(Clone, Debug, Eq, PartialEq, Display)]
+#[derive(Clone, Debug, Eq, PartialEq, Display, Error)]
 pub enum RequestError {
     /// Closed channel to the peer.
     #[display("closed channel to the peer")]
@@ -126,14 +126,11 @@ impl From<oneshot::error::RecvError> for RequestError {
     }
 }
 
-#[cfg(feature = "std")]
-impl std::error::Error for RequestError {}
-
 /// The download result type
 pub type DownloadResult<T> = Result<T, DownloadError>;
 
 /// The downloader error type
-#[derive(Debug, Clone, PartialEq, Eq, Display)]
+#[derive(Debug, Clone, PartialEq, Eq, Display, Error)]
 pub enum DownloadError {
     /* ==================== HEADER ERRORS ==================== */
     /// Header validation failed.
@@ -144,6 +141,7 @@ pub enum DownloadError {
         /// Number of header failing validation
         number: u64,
         /// The details of validation failure
+        #[error(source)]
         error: Box<ConsensusError>,
     },
     /// Received an invalid tip.
@@ -216,20 +214,6 @@ impl From<ProviderError> for DownloadError {
     }
 }
 
-#[cfg(feature = "std")]
-impl std::error::Error for DownloadError {
-    fn source(&self) -> Option<&(dyn std::error::Error + 'static)> {
-        match self {
-            Self::HeaderValidation { error, .. } | Self::BodyValidation { error, .. } => {
-                std::error::Error::source(error)
-            }
-            Self::RequestError(error) => std::error::Error::source(error),
-            Self::Provider(error) => std::error::Error::source(error),
-            _ => None,
-        }
-    }
-}
-
 #[cfg(test)]
 mod tests {
     use super::*;

crates/net/p2p/src/headers/error.rs

@@ -1,12 +1,12 @@
-use derive_more::Display;
+use derive_more::{Display, Error};
 use reth_consensus::ConsensusError;
 use reth_primitives::SealedHeader;
 
 /// Header downloader result
 pub type HeadersDownloaderResult<T> = Result<T, HeadersDownloaderError>;
 
 /// Error variants that can happen when sending requests to a session.
-#[derive(Debug, Clone, Eq, PartialEq, Display)]
+#[derive(Debug, Clone, Eq, PartialEq, Display, Error)]
 pub enum HeadersDownloaderError {
     /// The downloaded header cannot be attached to the local head,
     /// but is valid otherwise.
@@ -17,15 +17,7 @@ pub enum HeadersDownloaderError {
         /// The header we attempted to attach.
         header: Box<SealedHeader>,
         /// The error that occurred when attempting to attach the header.
+        #[error(source)]
         error: Box<ConsensusError>,
     },
 }
-
-#[cfg(feature = "std")]
-impl std::error::Error for HeadersDownloaderError {
-    fn source(&self) -> Option<&(dyn std::error::Error + 'static)> {
-        match self {
-            Self::DetachedHead { error, .. } => Some(error),
-        }
-    }
-}

crates/primitives-traits/src/integer_list.rs

@@ -138,7 +138,7 @@ impl<'a> Arbitrary<'a> for IntegerList {
 }
 
 /// Primitives error type.
-#[derive(Debug, derive_more::Display)]
+#[derive(Debug, derive_more::Display, derive_more::Error)]
 pub enum RoaringBitmapError {
     /// The provided input is invalid.
     #[display("the provided input is invalid")]
@@ -148,9 +148,6 @@ pub enum RoaringBitmapError {
     FailedToDeserialize,
 }
 
-#[cfg(feature = "std")]
-impl std::error::Error for RoaringBitmapError {}
-
 #[cfg(test)]
 mod tests {
     use super::*;

crates/primitives/src/transaction/error.rs

@@ -66,7 +66,7 @@ impl std::error::Error for InvalidTransactionError {}
 
 /// Represents error variants that can happen when trying to convert a transaction to
 /// [`PooledTransactionsElement`](crate::PooledTransactionsElement)
-#[derive(Debug, Clone, Eq, PartialEq, derive_more::Display)]
+#[derive(Debug, Clone, Eq, PartialEq, derive_more::Display, derive_more::Error)]
 pub enum TransactionConversionError {
     /// This error variant is used when a transaction cannot be converted into a
     /// [`PooledTransactionsElement`](crate::PooledTransactionsElement) because it is not supported
@@ -75,9 +75,6 @@ pub enum TransactionConversionError {
     UnsupportedForP2P,
 }
 
-#[cfg(feature = "std")]
-impl std::error::Error for TransactionConversionError {}
-
 /// Represents error variants than can happen when trying to convert a
 /// [`TransactionSignedEcRecovered`](crate::TransactionSignedEcRecovered) transaction.
 #[derive(Debug, Clone, Eq, PartialEq, derive_more::Display)]

crates/storage/errors/src/writer.rs

@@ -3,7 +3,7 @@ use reth_primitives::StaticFileSegment;
 
 /// `UnifiedStorageWriter` related errors
 /// `StorageWriter` related errors
-#[derive(Clone, Debug, derive_more::Display, PartialEq, Eq)]
+#[derive(Clone, Debug, derive_more::Display, PartialEq, Eq, derive_more::Error)]
 pub enum UnifiedStorageWriterError {
     /// Database writer is missing
     #[display("Database writer is missing")]
@@ -18,16 +18,6 @@ pub enum UnifiedStorageWriterError {
     Database(DatabaseError),
 }
 
-#[cfg(feature = "std")]
-impl std::error::Error for UnifiedStorageWriterError {
-    fn source(&self) -> Option<&(dyn std::error::Error + 'static)> {
-        match self {
-            Self::Database(source) => std::error::Error::source(source),
-            _ => Option::None,
-        }
-    }
-}
-
 impl From<DatabaseError> for UnifiedStorageWriterError {
     fn from(error: DatabaseError) -> Self {
         Self::Database(error)