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eth2.0-specs
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make extracted byte uint8 for bitshift, do not use negative slice indexing, avoid negative comparison in test

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protolambda 2020-06-26 16:13:38 +02:00
parent 3fb0257cbb
commit 3b7617f51a
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3 changed files with 4 additions and 4 deletions
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2
setup.py
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@ -96,7 +96,7 @@ from lru import LRU
from eth2spec.utils.ssz.ssz_impl import hash_tree_root, copy
from eth2spec.utils.ssz.ssz_typing import (
View, boolean, Container, List, Vector, uint64,
View, boolean, Container, List, Vector, uint64, uint8,
Bytes1, Bytes4, Bytes32, Bytes48, Bytes96, Bitlist, Bitvector,
)
from eth2spec.utils import bls

4
specs/phase0/beacon-chain.md
View File

@ -737,7 +737,7 @@ def compute_shuffled_index(index: uint64, index_count: uint64, seed: Bytes32) ->
flip = (pivot + index_count - index) % index_count
position = max(index, flip)
source = hash(seed + int_to_bytes(current_round, length=1) + int_to_bytes(position // 256, length=4))
byte = source[(position % 256) // 8]
byte = uint8(source[(position % 256) // 8])
bit = (byte >> (position % 8)) % 2
index = flip if bit else index
@ -1317,7 +1317,7 @@ def process_justification_and_finalization(state: BeaconState) -> None:
# Process justifications
state.previous_justified_checkpoint = state.current_justified_checkpoint
state.justification_bits[1:] = state.justification_bits[:-1]
state.justification_bits[1:] = state.justification_bits[:JUSTIFICATION_BITS_LENGTH - 1]
state.justification_bits[0] = 0b0
matching_target_attestations = get_matching_target_attestations(state, previous_epoch) # Previous epoch
if get_attesting_balance(state, matching_target_attestations) * 3 >= get_total_active_balance(state) * 2:

2
tests/core/pyspec/eth2spec/test/phase0/epoch_processing/test_process_rewards_and_penalties.py
View File

@ -48,7 +48,7 @@ def test_genesis_epoch_full_attestations_no_rewards(spec, state):
attestation = get_valid_attestation(spec, state, signed=True)
attestations.append(attestation)
# fill each created slot in state after inclusion delay
if slot - spec.MIN_ATTESTATION_INCLUSION_DELAY >= 0:
if slot >= spec.MIN_ATTESTATION_INCLUSION_DELAY:
include_att = attestations[slot - spec.MIN_ATTESTATION_INCLUSION_DELAY]
add_attestations_to_state(spec, state, [include_att], state.slot)
next_slot(spec, state)