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Altair consensus changes and refactors (#2279)

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## Proposed Changes

Implement the consensus changes necessary for the upcoming Altair hard fork.

## Additional Info

This is quite a heavy refactor, with pivotal types like the `BeaconState` and `BeaconBlock` changing from structs to enums. This ripples through the whole codebase with field accesses changing to methods, e.g. `state.slot` => `state.slot()`.


Co-authored-by: realbigsean <seananderson33@gmail.com>
This commit is contained in:
Michael Sproul
2021-07-09 06:15:32 +00:00
parent 89361573d4
commit b4689e20c6
271 changed files with 9652 additions and 8444 deletions
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30
consensus/state_processing/src/common/mod.rs
View File

@@ -1,34 +1,40 @@
mod deposit_data_tree;
mod get_attestation_participation;
mod get_attesting_indices;
mod get_base_reward;
mod get_indexed_attestation;
mod initiate_validator_exit;
mod slash_validator;
pub mod altair;
pub mod base;
pub use deposit_data_tree::DepositDataTree;
pub use get_attestation_participation::get_attestation_participation_flag_indices;
pub use get_attesting_indices::get_attesting_indices;
pub use get_base_reward::get_base_reward;
pub use get_indexed_attestation::get_indexed_attestation;
pub use initiate_validator_exit::initiate_validator_exit;
pub use slash_validator::slash_validator;
use safe_arith::{ArithError, SafeArith};
use types::{BeaconState, EthSpec};
use safe_arith::SafeArith;
use types::{BeaconState, BeaconStateError, EthSpec};
/// Increase the balance of a validator, erroring upon overflow, as per the spec.
///
/// Spec v0.12.1
pub fn increase_balance<E: EthSpec>(
state: &mut BeaconState<E>,
index: usize,
delta: u64,
) -> Result<(), ArithError> {
state.balances[index].safe_add_assign(delta)
) -> Result<(), BeaconStateError> {
state.get_balance_mut(index)?.safe_add_assign(delta)?;
Ok(())
}
/// Decrease the balance of a validator, saturating upon overflow, as per the spec.
///
/// Spec v0.12.1
pub fn decrease_balance<E: EthSpec>(state: &mut BeaconState<E>, index: usize, delta: u64) {
state.balances[index] = state.balances[index].saturating_sub(delta);
pub fn decrease_balance<E: EthSpec>(
state: &mut BeaconState<E>,
index: usize,
delta: u64,
) -> Result<(), BeaconStateError> {
let balance = state.get_balance_mut(index)?;
*balance = balance.saturating_sub(delta);
Ok(())
}