Indexed att on disk (#35)

* indexed att on disk

* fix lints

* Update slasher/src/migrate.rs

Co-authored-by: ethDreamer <37123614+ethDreamer@users.noreply.github.com>

---------

Co-authored-by: Lion - dapplion <35266934+dapplion@users.noreply.github.com>
Co-authored-by: ethDreamer <37123614+ethDreamer@users.noreply.github.com>

consensus/types/src/indexed_attestation.rs

@@ -239,6 +239,38 @@ mod quoted_variable_list_u64 {
     }
 }
 
+#[derive(Debug, Clone, Encode, Decode, PartialEq)]
+#[ssz(enum_behaviour = "union")]
+pub enum IndexedAttestationOnDisk<E: EthSpec> {
+    Base(IndexedAttestationBase<E>),
+    Electra(IndexedAttestationElectra<E>),
+}
+
+#[derive(Debug, Clone, Encode, PartialEq)]
+#[ssz(enum_behaviour = "union")]
+pub enum IndexedAttestationRefOnDisk<'a, E: EthSpec> {
+    Base(&'a IndexedAttestationBase<E>),
+    Electra(&'a IndexedAttestationElectra<E>),
+}
+
+impl<'a, E: EthSpec> From<&'a IndexedAttestation<E>> for IndexedAttestationRefOnDisk<'a, E> {
+    fn from(attestation: &'a IndexedAttestation<E>) -> Self {
+        match attestation {
+            IndexedAttestation::Base(attestation) => Self::Base(attestation),
+            IndexedAttestation::Electra(attestation) => Self::Electra(attestation),
+        }
+    }
+}
+
+impl<E: EthSpec> From<IndexedAttestationOnDisk<E>> for IndexedAttestation<E> {
+    fn from(attestation: IndexedAttestationOnDisk<E>) -> Self {
+        match attestation {
+            IndexedAttestationOnDisk::Base(attestation) => Self::Base(attestation),
+            IndexedAttestationOnDisk::Electra(attestation) => Self::Electra(attestation),
+        }
+    }
+}
+
 #[cfg(test)]
 mod tests {
     use super::*;

consensus/types/src/lib.rs

@@ -176,7 +176,8 @@ pub use crate::fork_versioned_response::{ForkVersionDeserialize, ForkVersionedRe
 pub use crate::graffiti::{Graffiti, GRAFFITI_BYTES_LEN};
 pub use crate::historical_batch::HistoricalBatch;
 pub use crate::indexed_attestation::{
-    IndexedAttestation, IndexedAttestationBase, IndexedAttestationElectra, IndexedAttestationRef,
+    IndexedAttestation, IndexedAttestationBase, IndexedAttestationElectra,
+    IndexedAttestationOnDisk, IndexedAttestationRef, IndexedAttestationRefOnDisk,
 };
 pub use crate::light_client_bootstrap::{
     LightClientBootstrap, LightClientBootstrapAltair, LightClientBootstrapCapella,