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eth2.0-specs
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Address Danny's comments

This commit is contained in:
Justin Drake 2019-06-15 15:09:50 +01:00
parent a6230425b8
commit ed748a7d76
4 changed files with 11 additions and 11 deletions
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2
scripts/build_spec.py
View File

@ -62,7 +62,6 @@ from eth2spec.utils.bls import (
from eth2spec.utils.hash_function import hash
'''
BYTE_TYPES = [4, 32, 48, 96]
NEW_TYPES = {
'Slot': 'int',
'Epoch': 'int',
@ -70,6 +69,7 @@ NEW_TYPES = {
'ValidatorIndex': 'int',
'Gwei': 'int',
}
BYTE_TYPES = [4, 32, 48, 96]
SUNDRY_FUNCTIONS = '''
def get_ssz_type_by_name(name: str) -> Container:
return globals()[name]

14
specs/core/0_beacon-chain.md
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@ -493,7 +493,7 @@ class BeaconState(Container):
slot: Slot
fork: Fork
# History
parent_block_header: BeaconBlockHeader
latest_block_header: BeaconBlockHeader
block_roots: Vector[Hash, SLOTS_PER_HISTORICAL_ROOT]
state_roots: Vector[Hash, SLOTS_PER_HISTORICAL_ROOT]
historical_roots: List[Hash]
@ -1152,7 +1152,7 @@ def get_genesis_beacon_state(deposits: List[Deposit], genesis_time: int, genesis
state = BeaconState(
genesis_time=genesis_time,
eth1_data=genesis_eth1_data,
parent_block_header=BeaconBlockHeader(body_root=hash_tree_root(BeaconBlockBody())),
latest_block_header=BeaconBlockHeader(body_root=hash_tree_root(BeaconBlockBody())),
)
# Process genesis deposits
@ -1212,11 +1212,11 @@ def process_slot(state: BeaconState) -> None:
state.state_roots[state.slot % SLOTS_PER_HISTORICAL_ROOT] = previous_state_root
# Cache latest block header state root
if state.parent_block_header.state_root == ZERO_HASH:
state.parent_block_header.state_root = previous_state_root
if state.latest_block_header.state_root == ZERO_HASH:
state.latest_block_header.state_root = previous_state_root
# Cache block root
previous_block_root = signing_root(state.parent_block_header)
previous_block_root = signing_root(state.latest_block_header)
state.block_roots[state.slot % SLOTS_PER_HISTORICAL_ROOT] = previous_block_root
```
@ -1556,9 +1556,9 @@ def process_block_header(state: BeaconState, block: BeaconBlock) -> None:
# Verify that the slots match
assert block.slot == state.slot
# Verify that the parent matches
assert block.parent_root == signing_root(state.parent_block_header)
assert block.parent_root == signing_root(state.latest_block_header)
# Save current block as the new latest block
state.parent_block_header = BeaconBlockHeader(
state.latest_block_header = BeaconBlockHeader(
slot=block.slot,
parent_root=block.parent_root,
body_root=hash_tree_root(block.body),

4
specs/core/0_fork-choice.md
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@ -68,8 +68,8 @@ def get_ancestor(store: Store, block: BeaconBlock, slot: Slot) -> BeaconBlock:
return get_ancestor(store, store.get_parent(block), slot)
```
* Let `get_attestation(store: Store, index: ValidatorIndex) -> Attestation` be the attestation with the highest slot number in `store` from the validator with the given `index`. If several such attestations exist, use the one the validator `v` observed first.
* Let `get_attestation_target(store: Store, index: ValidatorIndex) -> BeaconBlock` be the target block in the attestation `get_attestation(store, index)`.
* Let `get_latest_attestation(store: Store, index: ValidatorIndex) -> Attestation` be the attestation with the highest slot number in `store` from the validator with the given `index`. If several such attestations exist, use the one the validator `v` observed first.
* Let `get_attestation_target(store: Store, index: ValidatorIndex) -> BeaconBlock` be the target block in the attestation `get_latest_attestation(store, index)`.
* Let `get_children(store: Store, block: BeaconBlock) -> List[BeaconBlock]` return the child blocks of the given `block`.
* Let `justified_head_state` be the resulting `BeaconState` object from processing the chain up to the `justified_head`.
* The `head` is `lmd_ghost(store, justified_head_state, justified_head)` where the function `lmd_ghost` is defined below. Note that the implementation below is suboptimal; there are implementations that compute the head in time logarithmic in slot count.

2
test_libs/pyspec/eth2spec/test/helpers/block.py
View File

@ -58,7 +58,7 @@ def build_empty_block(spec, state, slot=None, signed=False):
empty_block = spec.BeaconBlock()
empty_block.slot = slot
empty_block.body.eth1_data.deposit_count = state.eth1_deposit_index
previous_block_header = deepcopy(state.parent_block_header)
previous_block_header = deepcopy(state.latest_block_header)
if previous_block_header.state_root == spec.ZERO_HASH:
previous_block_header.state_root = state.hash_tree_root()
empty_block.parent_root = signing_root(previous_block_header)