Load the state corresponding to head payload status yay

consensus/proto_array/src/proto_array_fork_choice.rs

@@ -18,7 +18,7 @@ use std::{
 };
 use types::{
     AttestationShufflingId, ChainSpec, Checkpoint, Epoch, EthSpec, ExecutionBlockHash, Hash256,
-    Slot,
+    Slot, StatePayloadStatus,
 };
 
 pub const DEFAULT_PRUNE_THRESHOLD: usize = 256;
@@ -69,6 +69,19 @@ pub enum PayloadStatus {
     Pending = 2,
 }
 
+impl PayloadStatus {
+    /// Convert a `PayloadStatus` into the equivalent `StatePayloadStatus`.
+    ///
+    /// This maps `Empty` onto `StatePayloadStatus::Pending` because empty and pending fork choice
+    /// nodes correspond to the exact same state.
+    pub fn as_state_payload_status(self) -> StatePayloadStatus {
+        match self {
+            Self::Empty | Self::Pending => StatePayloadStatus::Pending,
+            Self::Full => StatePayloadStatus::Full,
+        }
+    }
+}
+
 /// Spec's `ForkChoiceNode` augmented with ProtoNode index.
 pub struct IndexedForkChoiceNode {
     pub root: Hash256,