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Cleanups

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Justin 2019-06-23 11:18:24 +02:00 committed by GitHub
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specs/core/0_beacon-chain.md
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@ -1699,20 +1699,21 @@ def process_attestation(state: BeaconState, attestation: Attestation) -> None:
) )
if data.target.epoch == get_current_epoch(state): if data.target.epoch == get_current_epoch(state):
ffg_source = state.current_justified_checkpoint assert data.source == state.current_justified_checkpoint
parent_crosslink = state.current_crosslinks[data.crosslink.shard] parent_crosslink = state.current_crosslinks[data.crosslink.shard]
state.current_epoch_attestations.append(pending_attestation) state.current_epoch_attestations.append(pending_attestation)
else: else:
ffg_source = state.previous_justified_checkpoint assert data.source == state.previous_justified_checkpoint
parent_crosslink = state.previous_crosslinks[data.crosslink.shard] parent_crosslink = state.previous_crosslinks[data.crosslink.shard]
state.previous_epoch_attestations.append(pending_attestation) state.previous_epoch_attestations.append(pending_attestation)
# Check FFG source, crosslink data, and signature # Check crosslink against expected parent crosslink
assert ffg_source == data.source assert data.crosslink.parent_root == hash_tree_root(parent_crosslink)
assert data.crosslink.start_epoch == parent_crosslink.end_epoch assert data.crosslink.start_epoch == parent_crosslink.end_epoch
assert data.crosslink.end_epoch == min(data.target.epoch, parent_crosslink.end_epoch + MAX_EPOCHS_PER_CROSSLINK) assert data.crosslink.end_epoch == min(data.target.epoch, parent_crosslink.end_epoch + MAX_EPOCHS_PER_CROSSLINK)
assert data.crosslink.parent_root == hash_tree_root(parent_crosslink)
assert data.crosslink.data_root == ZERO_HASH # [to be removed in phase 1] assert data.crosslink.data_root == ZERO_HASH # [to be removed in phase 1]
# Check signature
validate_indexed_attestation(state, convert_to_indexed(state, attestation)) validate_indexed_attestation(state, convert_to_indexed(state, attestation))
``` ```