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Merge pull request #1885 from paulhauner/patch-26 

Fork choice: minor formatting change
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Danny Ryan 2020-06-13 15:51:03 -05:00 committed by GitHub
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specs/phase0/fork-choice.md
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@ -342,8 +342,9 @@ def on_tick(store: Store, time: uint64) -> None:
```python ```python
def on_block(store: Store, signed_block: SignedBeaconBlock) -> None: def on_block(store: Store, signed_block: SignedBeaconBlock) -> None:
block = signed_block.message block = signed_block.message
# Make a copy of the state to avoid mutability issues # Parent block must be known
assert block.parent_root in store.block_states assert block.parent_root in store.block_states
# Make a copy of the state to avoid mutability issues
pre_state = store.block_states[block.parent_root].copy() pre_state = store.block_states[block.parent_root].copy()
# Blocks cannot be in the future. If they are, their consideration must be delayed until the are in the past. # Blocks cannot be in the future. If they are, their consideration must be delayed until the are in the past.
assert get_current_slot(store) >= block.slot assert get_current_slot(store) >= block.slot