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Avoid implicit validator status assumption (#1188)

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* Avoid implicit validator status assumption

Replacement for #1092

* Update registry_updates.rs

* Fix compilation errors

Co-authored-by: Michael Sproul <michael@sigmaprime.io>
This commit is contained in:
Justin 2020-05-26 01:10:52 +01:00 committed by GitHub
parent f8cac1b822
commit e889c2eb22
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1 changed files with 14 additions and 16 deletions
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24
consensus/state_processing/src/per_epoch_processing/registry_updates.rs
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@ -1,6 +1,6 @@
use super::super::common::initiate_validator_exit;
use super::Error;
use itertools::{Either, Itertools};
use itertools::Itertools;
use types::*;
/// Performs a validator registry update, if required.
@ -15,30 +15,28 @@ pub fn process_registry_updates<T: EthSpec>(
// We assume it's safe to re-order the change in eligibility and `initiate_validator_exit`.
// Rest assured exiting validators will still be exited in the same order as in the spec.
let current_epoch = state.current_epoch();
let is_exiting_validator = |validator: &Validator| {
let is_ejectable = |validator: &Validator| {
validator.is_active_at(current_epoch)
&& validator.effective_balance <= spec.ejection_balance
};
let (eligible_validators, exiting_validators): (Vec<_>, Vec<_>) = state
let indices_to_update: Vec<_> = state
.validators
.iter()
.enumerate()
.filter(|(_, validator)| {
validator.is_eligible_for_activation_queue(spec) || is_exiting_validator(validator)
validator.is_eligible_for_activation_queue(spec) || is_ejectable(validator)
})
.partition_map(|(index, validator)| {
if validator.is_eligible_for_activation_queue(spec) {
Either::Left(index)
} else {
Either::Right(index)
}
});
for index in eligible_validators {
.map(|(idx, _)| idx)
.collect();
for index in indices_to_update {
if state.validators[index].is_eligible_for_activation_queue(spec) {
state.validators[index].activation_eligibility_epoch = current_epoch + 1;
}
for index in exiting_validators {
if is_ejectable(&state.validators[index]) {
initiate_validator_exit(state, index, spec)?;
}
}
// Queue validators eligible for activation and not dequeued for activation prior to finalized epoch
let activation_queue = state