From 76adedff2788f0f0d55bff96d6b0ffe1e96e8b39 Mon Sep 17 00:00:00 2001
From: Michael Sproul <michael@sigmaprime.io>
Date: Thu, 4 Sep 2025 10:08:29 +1000
Subject: [PATCH] Simplify length methods on BeaconBlockBody (#7989)

Just the low-hanging fruit from:

- https://github.com/sigp/lighthouse/pull/7988
---
 consensus/types/src/beacon_block_body.rs | 28 +++++++-----------------
 1 file changed, 8 insertions(+), 20 deletions(-)

diff --git a/consensus/types/src/beacon_block_body.rs b/consensus/types/src/beacon_block_body.rs
index 7df9c3f3cb..e636fbb534 100644
--- a/consensus/types/src/beacon_block_body.rs
+++ b/consensus/types/src/beacon_block_body.rs
@@ -318,29 +318,17 @@ impl<'a, E: EthSpec, Payload: AbstractExecPayload<E>> BeaconBlockBodyRef<'a, E,
     }
 
     pub fn attestations_len(&self) -> usize {
-        match self {
-            Self::Base(body) => body.attestations.len(),
-            Self::Altair(body) => body.attestations.len(),
-            Self::Bellatrix(body) => body.attestations.len(),
-            Self::Capella(body) => body.attestations.len(),
-            Self::Deneb(body) => body.attestations.len(),
-            Self::Electra(body) => body.attestations.len(),
-            Self::Fulu(body) => body.attestations.len(),
-            Self::Gloas(body) => body.attestations.len(),
-        }
+        map_beacon_block_body_ref!(&'a _, self, |inner, cons| {
+            cons(inner);
+            inner.attestations.len()
+        })
     }
 
     pub fn attester_slashings_len(&self) -> usize {
-        match self {
-            Self::Base(body) => body.attester_slashings.len(),
-            Self::Altair(body) => body.attester_slashings.len(),
-            Self::Bellatrix(body) => body.attester_slashings.len(),
-            Self::Capella(body) => body.attester_slashings.len(),
-            Self::Deneb(body) => body.attester_slashings.len(),
-            Self::Electra(body) => body.attester_slashings.len(),
-            Self::Fulu(body) => body.attester_slashings.len(),
-            Self::Gloas(body) => body.attester_slashings.len(),
-        }
+        map_beacon_block_body_ref!(&'a _, self, |inner, cons| {
+            cons(inner);
+            inner.attester_slashings.len()
+        })
     }
 
     pub fn attestations(&self) -> Box<dyn Iterator<Item = AttestationRef<'a, E>> + 'a> {