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make beacon state for shard sate transition from current shard epoch

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Danny Ryan 2019-09-30 13:11:23 +09:00
parent 49a2919099
commit a5fb9408ae
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1 changed files with 4 additions and 4 deletions
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specs/core/1_shard-data-chains.md
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@ -338,12 +338,12 @@ def process_shard_block_header(beacon_state: BeaconState, shard_state: ShardStat
# Verify the slot number
assert block.slot == shard_state.slot
# Verify the beacon chain root
parent_epoch = compute_epoch_of_shard_slot(shard_state.latest_block_header.slot)
# --super dirty. need to think-- #
if parent_epoch * SLOTS_PER_EPOCH == beacon_state.slot:
epoch = compute_epoch_of_shard_slot(shard_state.slot)
assert epoch == compute_epoch_of_slot(beacon_state.slot)
if epoch * SLOTS_PER_EPOCH == beacon_state.slot:
beacon_block_root = signing_root(beacon_state.latest_block_header)
else:
beacon_block_root = get_block_root(beacon_state, parent_epoch)
beacon_block_root = get_block_root(beacon_state, epoch)
assert block.beacon_block_root == beacon_block_root
# Verify the parent root
assert block.parent_root == signing_root(shard_state.latest_block_header)