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committees are sorted

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dapplion
2024-06-19 12:59:27 +02:00
parent a8d8989c05
commit d67270f899
3 changed files with 15 additions and 12 deletions
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9
beacon_node/beacon_chain/src/attestation_verification.rs
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@@ -597,6 +597,8 @@ impl<'a, T: BeaconChainTypes> IndexedAggregatedAttestation<'a, T> {
))
}
};
// Committees must be sorted by ascending index order 0..committees_per_slot
let get_indexed_attestation_with_committee =
|(committees, _): (Vec<BeaconCommittee>, CommitteesPerSlot)| {
let (index, aggregator_index, selection_proof, data) = match signed_aggregate {
@@ -622,10 +624,7 @@ impl<'a, T: BeaconChainTypes> IndexedAggregatedAttestation<'a, T> {
let slot = data.slot;
let committee = committees
.iter()
.filter(|&committee| committee.index == index)
.at_most_one()
.map_err(|_| Error::NoCommitteeForSlotAndIndex { slot, index })?
.get(index as usize)
.ok_or(Error::NoCommitteeForSlotAndIndex { slot, index })?;
if !SelectionProof::from(selection_proof)
@@ -1422,6 +1421,8 @@ pub fn obtain_indexed_attestation_and_committees_per_slot<T: BeaconChainTypes>(
///
/// If the committees for an `attestation`'s slot isn't found in the `shuffling_cache`, we will read a state
/// from disk and then update the `shuffling_cache`.
///
/// Committees are sorted by ascending index order 0..committees_per_slot
fn map_attestation_committees<T, F, R>(
chain: &BeaconChain<T>,
attestation: AttestationRef<T::EthSpec>,