Documentation
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Overview ¶
Package attestationutil contains useful helpers for converting attestations into indexed form.
Index ¶
Constants ¶
This section is empty.
Variables ¶
This section is empty.
Functions ¶
func AttestingIndices ¶
AttestingIndices returns the attesting participants indices from the attestation data. The committee is provided as an argument rather than a direct implementation from the spec definition. Having the committee as an argument allows for re-use of beacon committees when possible.
Spec pseudocode definition:
def get_attesting_indices(state: BeaconState,
data: AttestationData,
bits: Bitlist[MAX_VALIDATORS_PER_COMMITTEE]) -> Set[ValidatorIndex]:
"""
Return the set of attesting indices corresponding to ``data`` and ``bits``.
"""
committee = get_beacon_committee(state, data.slot, data.index)
return set(index for i, index in enumerate(committee) if bits[i])
func ConvertToIndexed ¶
func ConvertToIndexed(ctx context.Context, attestation *ethpb.Attestation, committee []uint64) *ethpb.IndexedAttestation
ConvertToIndexed converts attestation to (almost) indexed-verifiable form.
Note about spec pseudocode definition. The state was used by get_attesting_indices to determine the attestation committee. Now that we provide this as an argument, we no longer need to provide a state.
Spec pseudocode definition:
def get_indexed_attestation(state: BeaconState, attestation: Attestation) -> IndexedAttestation:
"""
Return the indexed attestation corresponding to ``attestation``.
"""
attesting_indices = get_attesting_indices(state, attestation.data, attestation.aggregation_bits)
return IndexedAttestation(
attesting_indices=sorted(attesting_indices),
data=attestation.data,
signature=attestation.signature,
)
Types ¶
This section is empty.
Source Files