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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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24
consensus/state_processing/src/per_block_processing/verify_attestation.rs
View File

@@ -15,28 +15,26 @@ fn error(reason: Invalid) -> BlockOperationError<Invalid> {
/// to `state`. Otherwise, returns a descriptive `Err`.
///
/// Optionally verifies the aggregate signature, depending on `verify_signatures`.
///
/// Spec v0.12.1
pub fn verify_attestation_for_block_inclusion<T: EthSpec>(
state: &BeaconState<T>,
attestation: &Attestation<T>,
verify_signatures: VerifySignatures,
spec: &ChainSpec,
) -> Result<()> {
) -> Result<IndexedAttestation<T>> {
let data = &attestation.data;
verify!(
data.slot.safe_add(spec.min_attestation_inclusion_delay)? <= state.slot,
data.slot.safe_add(spec.min_attestation_inclusion_delay)? <= state.slot(),
Invalid::IncludedTooEarly {
state: state.slot,
state: state.slot(),
delay: spec.min_attestation_inclusion_delay,
attestation: data.slot,
}
);
verify!(
state.slot <= data.slot.safe_add(T::slots_per_epoch())?,
state.slot() <= data.slot.safe_add(T::slots_per_epoch())?,
Invalid::IncludedTooLate {
state: state.slot,
state: state.slot(),
attestation: data.slot,
}
);
@@ -56,7 +54,7 @@ pub fn verify_attestation_for_state<T: EthSpec>(
attestation: &Attestation<T>,
verify_signatures: VerifySignatures,
spec: &ChainSpec,
) -> Result<()> {
) -> Result<IndexedAttestation<T>> {
let data = &attestation.data;
verify!(
@@ -72,7 +70,7 @@ pub fn verify_attestation_for_state<T: EthSpec>(
let indexed_attestation = get_indexed_attestation(committee.committee, attestation)?;
is_valid_indexed_attestation(state, &indexed_attestation, verify_signatures, spec)?;
Ok(())
Ok(indexed_attestation)
}
/// Check target epoch and source checkpoint.
@@ -92,9 +90,9 @@ fn verify_casper_ffg_vote<T: EthSpec>(
);
if data.target.epoch == state.current_epoch() {
verify!(
data.source == state.current_justified_checkpoint,
data.source == state.current_justified_checkpoint(),
Invalid::WrongJustifiedCheckpoint {
state: state.current_justified_checkpoint,
state: state.current_justified_checkpoint(),
attestation: data.source,
is_current: true,
}
@@ -102,9 +100,9 @@ fn verify_casper_ffg_vote<T: EthSpec>(
Ok(())
} else if data.target.epoch == state.previous_epoch() {
verify!(
data.source == state.previous_justified_checkpoint,
data.source == state.previous_justified_checkpoint(),
Invalid::WrongJustifiedCheckpoint {
state: state.previous_justified_checkpoint,
state: state.previous_justified_checkpoint(),
attestation: data.source,
is_current: false,
}