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Merge pull request #1911 from terencechain/patch-103 

get_shard_winning_roots uses on_time_slot
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Hsiao-Wei Wang 2020-06-18 12:28:23 +08:00 committed by GitHub
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specs/phase1/validator.md
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@ -148,15 +148,16 @@ def get_shard_winning_roots(state: BeaconState,
shards = []
winning_roots = []
online_indices = get_online_validator_indices(state)
committee_count = get_committee_count_at_slot(state, state.slot)
on_time_attestation_slot = compute_previous_slot(state.slot)
committee_count = get_committee_count_at_slot(state, on_time_attestation_slot)
for committee_index in map(CommitteeIndex, range(committee_count)):
shard = compute_shard_from_committee_index(state, committee_index, state.slot)
shard = compute_shard_from_committee_index(state, committee_index, on_time_attestation_slot)
# All attestations in the block for this committee/shard and are "on time"
shard_attestations = [
attestation for attestation in attestations
if is_on_time_attestation(state, attestation) and attestation.data.index == committee_index
]
committee = get_beacon_committee(state, state.slot, committee_index)
committee = get_beacon_committee(state, on_time_attestation_slot, committee_index)
# Loop over all shard transition roots, looking for a winning root
shard_transition_roots = set([a.data.shard_transition_root for a in shard_attestations])