use derive

beacon_node/beacon_chain/src/blob_verification.rs

@@ -19,7 +19,7 @@ use types::blob_sidecar::BlobIdentifier;
 use types::{BeaconStateError, BlobSidecar, EthSpec, Hash256, SignedBeaconBlockHeader, Slot};
 
 /// An error occurred while validating a gossip blob.
-#[derive(Debug)]
+#[derive(Debug, strum::Display)]
 pub enum GossipBlobError {
     /// The blob sidecar is from a slot that is later than the current slot (with respect to the
     /// gossip clock disparity).
@@ -143,12 +143,6 @@ pub enum GossipBlobError {
     NotFinalizedDescendant { block_parent_root: Hash256 },
 }
 
-impl std::fmt::Display for GossipBlobError {
-    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
-        write!(f, "{:?}", self)
-    }
-}
-
 impl From<BeaconChainError> for GossipBlobError {
     fn from(e: BeaconChainError) -> Self {
         GossipBlobError::BeaconChainError(e)

beacon_node/beacon_chain/src/block_verification.rs

@@ -138,7 +138,7 @@ const WRITE_BLOCK_PROCESSING_SSZ: bool = cfg!(feature = "write_ssz_files");
 ///
 /// - The block is malformed/invalid (indicated by all results other than `BeaconChainError`.
 /// - We encountered an error whilst trying to verify the block (a `BeaconChainError`).
-#[derive(Debug)]
+#[derive(Debug, strum::Display)]
 pub enum BlockError {
     /// The parent block was unknown.
     ///
@@ -426,17 +426,6 @@ impl From<InconsistentFork> for BlockError {
     }
 }
 
-impl std::fmt::Display for BlockError {
-    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
-        match self {
-            BlockError::ParentUnknown { parent_root, .. } => {
-                write!(f, "ParentUnknown(parent_root:{})", parent_root)
-            }
-            other => write!(f, "{:?}", other),
-        }
-    }
-}
-
 impl From<BlockSignatureVerifierError> for BlockError {
     fn from(e: BlockSignatureVerifierError) -> Self {
         match e {