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spec v0.6.1: update per-epoch processing

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This commit is contained in:
Michael Sproul
2019-05-21 11:47:52 +10:00
parent d3d2900a6a
commit 56424d94c6
4 changed files with 13 additions and 35 deletions
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17
eth2/state_processing/src/per_epoch_processing/winning_root.rs
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@@ -47,15 +47,16 @@ pub fn winning_root<T: EthSpec>(
.filter(|a| a.data.shard == shard)
.collect();
let shard_crosslinks = shard_attestations.iter().map(|att| {
(
let mut shard_crosslinks = Vec::with_capacity(shard_attestations.len());
for att in shard_attestations {
shard_crosslinks.push((
att,
state.get_crosslink_from_attestation_data(&att.data, spec),
)
});
state.get_crosslink_from_attestation_data(&att.data, spec)?,
));
}
let current_shard_crosslink_root = state.current_crosslinks[shard as usize].tree_hash_root();
let candidate_crosslinks = shard_crosslinks.filter(|(_, c)| {
let current_shard_crosslink_root = state.get_current_crosslink(shard)?.tree_hash_root();
let candidate_crosslinks = shard_crosslinks.into_iter().filter(|(_, c)| {
c.previous_crosslink_root.as_bytes() == &current_shard_crosslink_root[..]
|| c.tree_hash_root() == current_shard_crosslink_root
});
@@ -63,7 +64,7 @@ pub fn winning_root<T: EthSpec>(
// Build a map from candidate crosslink to attestations that support that crosslink.
let mut candidate_crosslink_map: HashMap<Crosslink, Vec<&PendingAttestation>> = HashMap::new();
for (&attestation, crosslink) in candidate_crosslinks {
for (attestation, crosslink) in candidate_crosslinks {
let supporting_attestations = candidate_crosslink_map
.entry(crosslink)
.or_insert_with(Vec::new);