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Fixed bug in previous version 

Validators cannot simply be "popped out" of the list because it's super-important for validator indices to be immutable.

Instead, the validator stays until a new run of `add_validator` swaps it out.
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vbuterin 2018-11-09 15:31:50 -05:00 committed by GitHub
parent 20358f8d18
commit f7a8eb5a3e
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1 changed files with 3 additions and 8 deletions
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11
specs/beacon-chain.md
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@ -616,9 +616,9 @@ This routine should be run for every validator that is inducted as part of a log
First, a helper function:
```python
def min_empty_validator(validators: List[ValidatorRecord]):
def min_empty_validator(validators: List[ValidatorRecord], current_slot: int):
for i, v in enumerate(validators):
if v.status == WITHDRAWN:
if v.status == WITHDRAWN and v.exit_slot <= current_slot - DELETION_PERIOD:
return i
return None
```
@ -866,8 +866,7 @@ def change_validators(validators: List[ValidatorRecord], current_slot) -> None:
)
# Separate loop to withdraw validators that have been logged out for long enough, and
# calculate their penalties if they were slashed
i = 0
while i < len(validators):
for i in range(len(validators)):
if validators[i].status in (PENDING_WITHDRAW, PENALIZED) and current_slot >= validators[i].exit_slot + WITHDRAWAL_PERIOD:
if validators[i].status == PENALIZED:
validators[i].balance -= validators[i].balance * min(total_penalties * 3, total_balance) // total_balance
@ -877,10 +876,6 @@ def change_validators(validators: List[ValidatorRecord], current_slot) -> None:
withdraw_amount = validators[i].balance
...
# STUB: withdraw to shard chain
if validators[i].status == WITHDRAWN and current_slot >= validators[i].exit_slot + DELETION_PERIOD:
validators.pop(i)
else:
i += 1
```