block and blob handling progress

consensus/types/src/signed_block_and_blobs.rs

@@ -7,7 +7,27 @@ use tree_hash_derive::TreeHash;
 
 #[derive(Debug, Clone, Serialize, Deserialize, Encode, Decode, TreeHash, PartialEq)]
 #[serde(bound = "T: EthSpec")]
-pub struct SignedBeaconBlockAndBlobsSidecar<T: EthSpec> {
+pub struct SignedBeaconBlockAndBlobsSidecarDecode<T: EthSpec> {
     pub beacon_block: SignedBeaconBlockEip4844<T>,
     pub blobs_sidecar: BlobsSidecar<T>,
 }
+
+#[derive(Debug, Clone, Serialize, Deserialize, Encode, TreeHash, PartialEq)]
+#[serde(bound = "T: EthSpec")]
+pub struct SignedBeaconBlockAndBlobsSidecar<T: EthSpec> {
+    pub beacon_block: Arc<SignedBeaconBlock<T>>,
+    pub blobs_sidecar: Arc<BlobsSidecar<T>>,
+}
+
+impl<T: EthSpec> SignedBeaconBlockAndBlobsSidecar<T> {
+    pub fn from_ssz_bytes(bytes: &[u8]) -> Result<Self, DecodeError> {
+        let SignedBeaconBlockAndBlobsSidecarDecode {
+            beacon_block,
+            blobs_sidecar,
+        } = SignedBeaconBlockAndBlobsSidecarDecode::from_ssz_bytes(bytes)?;
+        Ok(SignedBeaconBlockAndBlobsSidecar {
+            beacon_block: Arc::new(SignedBeaconBlock::Eip4844(beacon_block)),
+            blobs_sidecar: Arc::new(blobs_sidecar),
+        })
+    }
+}