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16 changes: 15 additions & 1 deletion contracts/near/eth2-utility/src/consensus.rs
Original file line number Diff line number Diff line change
Expand Up @@ -21,14 +21,17 @@ pub struct ProofSize {
pub execution_proof_size: usize,
}

#[derive(Debug)]
pub struct GeneralizedIndex {
pub finality_tree_depth: u32,
pub finality_tree_index: u32,
pub current_sync_committee_tree_depth: u32,
pub current_sync_committee_tree_index: u32,
pub sync_committee_tree_depth: u32,
pub sync_committee_tree_index: u32,
}

#[derive(PartialEq, BorshSerialize, BorshDeserialize, BorshSchema)]
#[derive(PartialEq, BorshSerialize, BorshDeserialize, BorshSchema, Debug)]
pub enum Network {
Mainnet,
Goerli,
Expand Down Expand Up @@ -157,9 +160,14 @@ impl NetworkConfig {
}

pub const fn get_generalized_index_constants(&self, slot: Slot) -> GeneralizedIndex {
// Altair
pub const FINALIZED_ROOT_INDEX: u32 = 105;
pub const CURRENT_SYNC_COMMITTEE_INDEX: u32 = 55;
pub const NEXT_SYNC_COMMITTEE_INDEX: u32 = 55;

// Electra
pub const FINALIZED_ROOT_INDEX_ELECTRA: u32 = 169;
pub const CURRENT_SYNC_COMMITTEE_INDEX_ELECTRA: u32 = 86;
pub const NEXT_SYNC_COMMITTEE_INDEX_ELECTRA: u32 = 87;

let epoch = compute_epoch_at_slot(slot);
Expand All @@ -168,13 +176,19 @@ impl NetworkConfig {
GeneralizedIndex {
finality_tree_depth: floorlog2(FINALIZED_ROOT_INDEX_ELECTRA),
finality_tree_index: get_subtree_index(FINALIZED_ROOT_INDEX_ELECTRA),
current_sync_committee_tree_depth: floorlog2(CURRENT_SYNC_COMMITTEE_INDEX_ELECTRA),
current_sync_committee_tree_index: get_subtree_index(
CURRENT_SYNC_COMMITTEE_INDEX_ELECTRA,
),
sync_committee_tree_depth: floorlog2(NEXT_SYNC_COMMITTEE_INDEX_ELECTRA),
sync_committee_tree_index: get_subtree_index(NEXT_SYNC_COMMITTEE_INDEX_ELECTRA),
}
} else {
GeneralizedIndex {
finality_tree_depth: floorlog2(FINALIZED_ROOT_INDEX),
finality_tree_index: get_subtree_index(FINALIZED_ROOT_INDEX),
current_sync_committee_tree_depth: floorlog2(CURRENT_SYNC_COMMITTEE_INDEX),
current_sync_committee_tree_index: get_subtree_index(CURRENT_SYNC_COMMITTEE_INDEX),
sync_committee_tree_depth: floorlog2(NEXT_SYNC_COMMITTEE_INDEX),
sync_committee_tree_index: get_subtree_index(NEXT_SYNC_COMMITTEE_INDEX),
}
Expand Down
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