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Ensure attestation_participants is deduped

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Paul Hauner 2019-01-31 18:31:20 +11:00
parent d6adfc7655
commit e1239a1ecc
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1 changed files with 13 additions and 8 deletions
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9
eth2/types/src/beacon_state/attestation_participants.rs
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@ -18,14 +18,19 @@ impl BeaconState {
attestations: &[&PendingAttestation], attestations: &[&PendingAttestation],
spec: &ChainSpec, spec: &ChainSpec,
) -> Result<Vec<usize>, Error> { ) -> Result<Vec<usize>, Error> {
attestations.iter().try_fold(vec![], |mut acc, a| { let mut all_participants = attestations
.iter()
.try_fold::<_, _, Result<Vec<usize>, Error>>(vec![], |mut acc, a| {
acc.append(&mut self.get_attestation_participants( acc.append(&mut self.get_attestation_participants(
&a.data, &a.data,
&a.aggregation_bitfield, &a.aggregation_bitfield,
spec, spec,
)?); )?);
Ok(acc) Ok(acc)
}) })?;
all_participants.sort_unstable();
all_participants.dedup();
Ok(all_participants)
} }
// TODO: analyse for efficiency improvments. This implementation is naive. // TODO: analyse for efficiency improvments. This implementation is naive.