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Merge pull request #1920 from terencechain/patch-104 

Fix usages of shard in `process_crosslink_for_shard`
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Danny Ryan 2020-06-18 14:02:55 -06:00 committed by GitHub
parent 153b4206e8 3888dc27a9
commit 520ad97c3e
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1 changed files with 4 additions and 3 deletions
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specs/phase1/beacon-chain.md
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@ -876,6 +876,7 @@ def process_crosslink_for_shard(state: BeaconState,
on_time_attestation_slot = compute_previous_slot(state.slot)
committee = get_beacon_committee(state, on_time_attestation_slot, committee_index)
online_indices = get_online_validator_indices(state)
shard = compute_shard_from_committee_index(state, committee_index, on_time_attestation_slot)
# Loop over all shard transition roots
shard_transition_roots = set([a.data.shard_transition_root for a in attestations])
@ -901,7 +902,7 @@ def process_crosslink_for_shard(state: BeaconState,
assert shard_transition_root == hash_tree_root(shard_transition)
# Apply transition
apply_shard_transition(state, attestation.data.shard, shard_transition)
apply_shard_transition(state, shard, shard_transition)
# Apply proposer reward and cost
beacon_proposer_index = get_beacon_proposer_index(state)
estimated_attester_reward = sum([get_base_reward(state, attester) for attester in transition_participants])
@ -909,11 +910,11 @@ def process_crosslink_for_shard(state: BeaconState,
increase_balance(state, beacon_proposer_index, proposer_reward)
states_slots_lengths = zip(
shard_transition.shard_states,
get_offset_slots(state, attestation.data.shard),
get_offset_slots(state, shard),
shard_transition.shard_block_lengths
)
for shard_state, slot, length in states_slots_lengths:
proposer_index = get_shard_proposer_index(state, slot, attestation.data.shard)
proposer_index = get_shard_proposer_index(state, slot, shard)
decrease_balance(state, proposer_index, shard_state.gasprice * length)
# Return winning transition root