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Refactor `get_light_client_committee` to similar to 

`get_shard_committee`
This commit is contained in:
Hsiao-Wei Wang 2020-04-02 11:20:22 +08:00
parent 5f69afea38
commit be50020bf8
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1 changed files with 25 additions and 15 deletions
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36
specs/phase1/beacon-chain.md
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@ -43,8 +43,8 @@
- [`get_active_shard_count`](#get_active_shard_count)
- [`get_online_validator_indices`](#get_online_validator_indices)
- [`get_shard_committee`](#get_shard_committee)
- [`get_shard_proposer_index`](#get_shard_proposer_index)
- [`get_light_client_committee`](#get_light_client_committee)
- [`get_shard_proposer_index`](#get_shard_proposer_index)
- [`get_indexed_attestation`](#get_indexed_attestation)
- [`get_updated_gasprice`](#get_updated_gasprice)
- [`get_start_shard`](#get_start_shard)
@ -465,16 +465,12 @@ def get_shard_committee(beacon_state: BeaconState, epoch: Epoch, shard: Shard) -
source_epoch -= SHARD_COMMITTEE_PERIOD
active_validator_indices = get_active_validator_indices(beacon_state, source_epoch)
seed = get_seed(beacon_state, source_epoch, DOMAIN_SHARD_COMMITTEE)
return compute_committee(active_validator_indices, seed, shard, get_active_shard_count(beacon_state))
```
#### `get_shard_proposer_index`
```python
def get_shard_proposer_index(beacon_state: BeaconState, slot: Slot, shard: Shard) -> ValidatorIndex:
committee = get_shard_committee(beacon_state, compute_epoch_at_slot(slot), shard)
r = bytes_to_int(get_seed(beacon_state, get_current_epoch(beacon_state), DOMAIN_SHARD_COMMITTEE)[:8])
return committee[r % len(committee)]
return compute_committee(
indices=active_validator_indices,
seed=seed,
index=shard,
count=get_active_shard_count(beacon_state)
)
```
#### `get_light_client_committee`
@ -486,8 +482,22 @@ def get_light_client_committee(beacon_state: BeaconState, epoch: Epoch) -> Seque
source_epoch -= LIGHT_CLIENT_COMMITTEE_PERIOD
active_validator_indices = get_active_validator_indices(beacon_state, source_epoch)
seed = get_seed(beacon_state, source_epoch, DOMAIN_LIGHT_CLIENT)
active_shards = get_active_shard_count(beacon_state)
return compute_committee(active_validator_indices, seed, 0, active_shards)[:TARGET_COMMITTEE_SIZE]
active_shards_count = get_active_shard_count(beacon_state)
return compute_committee(
indices=active_validator_indices,
seed=seed,
index=0,
count=active_shards_count,
)[:TARGET_COMMITTEE_SIZE]
```
#### `get_shard_proposer_index`
```python
def get_shard_proposer_index(beacon_state: BeaconState, slot: Slot, shard: Shard) -> ValidatorIndex:
committee = get_shard_committee(beacon_state, compute_epoch_at_slot(slot), shard)
r = bytes_to_int(get_seed(beacon_state, get_current_epoch(beacon_state), DOMAIN_SHARD_COMMITTEE)[:8])
return committee[r % len(committee)]
```
#### `get_indexed_attestation`