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add code representation of utility function described in text for style consistency

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Alex Stokes 2018-10-17 19:00:45 -07:00
parent 19a561cd8d
commit 17fd4c7669
1 changed files with 13 additions and 1 deletions
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specs/beacon-chain.md
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@ -550,7 +550,19 @@ The `CrystallizedState()` and `ActiveState()` constructors should initialize all
### Routine for adding a validator
This routine should be run for every validator that is inducted as part of a log created on the PoW chain [TODO: explain where to check for these logs]. These logs should be processed in the order in which they are emitted by the PoW chain. Define `min_empty_validator(validators)` as a function that returns the lowest validator index `i` such that `validators[i].status == WITHDRAWN`, otherwise `None`.
This routine should be run for every validator that is inducted as part of a log created on the PoW chain [TODO: explain where to check for these logs]. These logs should be processed in the order in which they are emitted by the PoW chain.
First, a helper function:
```python
def min_empty_validator(validators: List[ValidatorRecord]):
for i, v in enumerate(validators):
if v.status == WITHDRAWN:
return i
return None
```
Now, to add a validator:
```python
def add_validator(validators: List[ValidatorRecord],