Update constants / types to match specs as of 23.1.19

eth2/types/src/beacon_block.rs

@@ -1,5 +1,5 @@
 use super::ssz::{ssz_encode, Decodable, DecodeError, Encodable, SszStream};
-use super::{BeaconBlockBody, Hash256};
+use super::{BeaconBlockBody, Eth1Data, Hash256};
 use crate::test_utils::TestRandom;
 use bls::Signature;
 use hashing::canonical_hash;
@@ -11,7 +11,7 @@ pub struct BeaconBlock {
     pub parent_root: Hash256,
     pub state_root: Hash256,
     pub randao_reveal: Hash256,
-    pub candidate_pow_receipt_root: Hash256,
+    pub eth1_data: Eth1Data,
     pub signature: Signature,
     pub body: BeaconBlockBody,
 }
@@ -30,7 +30,7 @@ impl Encodable for BeaconBlock {
         s.append(&self.parent_root);
         s.append(&self.state_root);
         s.append(&self.randao_reveal);
-        s.append(&self.candidate_pow_receipt_root);
+        s.append(&self.eth1_data);
         s.append(&self.signature);
         s.append(&self.body);
     }
@@ -42,7 +42,7 @@ impl Decodable for BeaconBlock {
         let (parent_root, i) = <_>::ssz_decode(bytes, i)?;
         let (state_root, i) = <_>::ssz_decode(bytes, i)?;
         let (randao_reveal, i) = <_>::ssz_decode(bytes, i)?;
-        let (candidate_pow_receipt_root, i) = <_>::ssz_decode(bytes, i)?;
+        let (eth1_data, i) = <_>::ssz_decode(bytes, i)?;
         let (signature, i) = <_>::ssz_decode(bytes, i)?;
         let (body, i) = <_>::ssz_decode(bytes, i)?;
 
@@ -52,7 +52,7 @@ impl Decodable for BeaconBlock {
                 parent_root,
                 state_root,
                 randao_reveal,
-                candidate_pow_receipt_root,
+                eth1_data,
                 signature,
                 body,
             },
@@ -68,7 +68,7 @@ impl<T: RngCore> TestRandom<T> for BeaconBlock {
             parent_root: <_>::random_for_test(rng),
             state_root: <_>::random_for_test(rng),
             randao_reveal: <_>::random_for_test(rng),
-            candidate_pow_receipt_root: <_>::random_for_test(rng),
+            eth1_data: <_>::random_for_test(rng),
             signature: <_>::random_for_test(rng),
             body: <_>::random_for_test(rng),
         }

eth2/types/src/beacon_state.rs

@@ -1,5 +1,6 @@
-use super::candidate_pow_receipt_root_record::CandidatePoWReceiptRootRecord;
 use super::crosslink_record::CrosslinkRecord;
+use super::eth1_data::Eth1Data;
+use super::eth1_data_vote::Eth1DataVote;
 use super::fork_data::ForkData;
 use super::pending_attestation_record::PendingAttestationRecord;
 use super::validator_record::ValidatorRecord;
@@ -52,9 +53,9 @@ pub struct BeaconState {
     pub latest_attestations: Vec<PendingAttestationRecord>,
     pub batched_block_roots: Vec<Hash256>,
 
-    // PoW receipt root (a.k.a. deposit root)
-    pub processed_pow_receipt_root: Hash256,
-    pub candidate_pow_receipt_roots: Vec<CandidatePoWReceiptRootRecord>,
+    // Ethereum 1.0 chain data
+    pub latest_eth1_data: Eth1Data,
+    pub eth1_data_votes: Vec<Eth1DataVote>,
 }
 
 impl BeaconState {
@@ -93,8 +94,8 @@ impl Encodable for BeaconState {
         s.append(&self.latest_penalized_exit_balances);
         s.append(&self.latest_attestations);
         s.append(&self.batched_block_roots);
-        s.append(&self.processed_pow_receipt_root);
-        s.append(&self.candidate_pow_receipt_roots);
+        s.append(&self.latest_eth1_data);
+        s.append(&self.eth1_data_votes);
     }
 }
 
@@ -126,8 +127,8 @@ impl Decodable for BeaconState {
         let (latest_penalized_exit_balances, i) = <_>::ssz_decode(bytes, i)?;
         let (latest_attestations, i) = <_>::ssz_decode(bytes, i)?;
         let (batched_block_roots, i) = <_>::ssz_decode(bytes, i)?;
-        let (processed_pow_receipt_root, i) = <_>::ssz_decode(bytes, i)?;
-        let (candidate_pow_receipt_roots, i) = <_>::ssz_decode(bytes, i)?;
+        let (latest_eth1_data, i) = <_>::ssz_decode(bytes, i)?;
+        let (eth1_data_votes, i) = <_>::ssz_decode(bytes, i)?;
 
         Ok((
             Self {
@@ -157,8 +158,8 @@ impl Decodable for BeaconState {
                 latest_penalized_exit_balances,
                 latest_attestations,
                 batched_block_roots,
-                processed_pow_receipt_root,
-                candidate_pow_receipt_roots,
+                latest_eth1_data,
+                eth1_data_votes,
             },
             i,
         ))
@@ -194,8 +195,8 @@ impl<T: RngCore> TestRandom<T> for BeaconState {
             latest_penalized_exit_balances: <_>::random_for_test(rng),
             latest_attestations: <_>::random_for_test(rng),
             batched_block_roots: <_>::random_for_test(rng),
-            processed_pow_receipt_root: <_>::random_for_test(rng),
-            candidate_pow_receipt_roots: <_>::random_for_test(rng),
+            latest_eth1_data: <_>::random_for_test(rng),
+            eth1_data_votes: <_>::random_for_test(rng),
         }
     }
 }

eth2/types/src/eth1_data.rs

@@ -4,39 +4,39 @@ use crate::test_utils::TestRandom;
 use rand::RngCore;
 
 // Note: this is refer to as DepositRootVote in specs
-#[derive(Debug, PartialEq, Clone)]
-pub struct CandidatePoWReceiptRootRecord {
-    pub candidate_pow_receipt_root: Hash256,
-    pub votes: u64,
+#[derive(Debug, PartialEq, Clone, Default)]
+pub struct Eth1Data {
+    pub deposit_root: Hash256,
+    pub block_hash: Hash256,
 }
 
-impl Encodable for CandidatePoWReceiptRootRecord {
+impl Encodable for Eth1Data {
     fn ssz_append(&self, s: &mut SszStream) {
-        s.append(&self.candidate_pow_receipt_root);
-        s.append(&self.votes);
+        s.append(&self.deposit_root);
+        s.append(&self.block_hash);
     }
 }
 
-impl Decodable for CandidatePoWReceiptRootRecord {
+impl Decodable for Eth1Data {
     fn ssz_decode(bytes: &[u8], i: usize) -> Result<(Self, usize), DecodeError> {
-        let (candidate_pow_receipt_root, i) = <_>::ssz_decode(bytes, i)?;
-        let (votes, i) = <_>::ssz_decode(bytes, i)?;
+        let (deposit_root, i) = <_>::ssz_decode(bytes, i)?;
+        let (block_hash, i) = <_>::ssz_decode(bytes, i)?;
 
         Ok((
             Self {
-                candidate_pow_receipt_root,
-                votes,
+                deposit_root,
+                block_hash,
             },
             i,
         ))
     }
 }
 
-impl<T: RngCore> TestRandom<T> for CandidatePoWReceiptRootRecord {
+impl<T: RngCore> TestRandom<T> for Eth1Data {
     fn random_for_test(rng: &mut T) -> Self {
         Self {
-            candidate_pow_receipt_root: <_>::random_for_test(rng),
-            votes: <_>::random_for_test(rng),
+            deposit_root: <_>::random_for_test(rng),
+            block_hash: <_>::random_for_test(rng),
         }
     }
 }
@@ -50,7 +50,7 @@ mod tests {
     #[test]
     pub fn test_ssz_round_trip() {
         let mut rng = XorShiftRng::from_seed([42; 16]);
-        let original = CandidatePoWReceiptRootRecord::random_for_test(&mut rng);
+        let original = Eth1Data::random_for_test(&mut rng);
 
         let bytes = ssz_encode(&original);
         let (decoded, _) = <_>::ssz_decode(&bytes, 0).unwrap();

eth2/types/src/eth1_data_vote.rs

@@ -0,0 +1,60 @@
+use super::ssz::{Decodable, DecodeError, Encodable, SszStream};
+use super::Eth1Data;
+use crate::test_utils::TestRandom;
+use rand::RngCore;
+
+// Note: this is refer to as DepositRootVote in specs
+#[derive(Debug, PartialEq, Clone, Default)]
+pub struct Eth1DataVote {
+    pub eth1_data: Eth1Data,
+    pub vote_count: u64,
+}
+
+impl Encodable for Eth1DataVote {
+    fn ssz_append(&self, s: &mut SszStream) {
+        s.append(&self.eth1_data);
+        s.append(&self.vote_count);
+    }
+}
+
+impl Decodable for Eth1DataVote {
+    fn ssz_decode(bytes: &[u8], i: usize) -> Result<(Self, usize), DecodeError> {
+        let (eth1_data, i) = <_>::ssz_decode(bytes, i)?;
+        let (vote_count, i) = <_>::ssz_decode(bytes, i)?;
+
+        Ok((
+            Self {
+                eth1_data,
+                vote_count,
+            },
+            i,
+        ))
+    }
+}
+
+impl<T: RngCore> TestRandom<T> for Eth1DataVote {
+    fn random_for_test(rng: &mut T) -> Self {
+        Self {
+            eth1_data: <_>::random_for_test(rng),
+            vote_count: <_>::random_for_test(rng),
+        }
+    }
+}
+
+#[cfg(test)]
+mod tests {
+    use super::super::ssz::ssz_encode;
+    use super::*;
+    use crate::test_utils::{SeedableRng, TestRandom, XorShiftRng};
+
+    #[test]
+    pub fn test_ssz_round_trip() {
+        let mut rng = XorShiftRng::from_seed([42; 16]);
+        let original = Eth1DataVote::random_for_test(&mut rng);
+
+        let bytes = ssz_encode(&original);
+        let (decoded, _) = <_>::ssz_decode(&bytes, 0).unwrap();
+
+        assert_eq!(original, decoded);
+    }
+}

eth2/types/src/lib.rs

@@ -10,12 +10,13 @@ pub mod attestation_data;
 pub mod beacon_block;
 pub mod beacon_block_body;
 pub mod beacon_state;
-pub mod candidate_pow_receipt_root_record;
 pub mod casper_slashing;
 pub mod crosslink_record;
 pub mod deposit;
 pub mod deposit_data;
 pub mod deposit_input;
+pub mod eth1_data;
+pub mod eth1_data_vote;
 pub mod exit;
 pub mod fork_data;
 pub mod pending_attestation_record;
@@ -27,6 +28,7 @@ pub mod slashable_vote_data;
 pub mod special_record;
 pub mod validator_record;
 pub mod validator_registry;
+pub mod validator_registry_delta_block;
 
 pub mod readers;
 
@@ -43,6 +45,8 @@ pub use crate::crosslink_record::CrosslinkRecord;
 pub use crate::deposit::Deposit;
 pub use crate::deposit_data::DepositData;
 pub use crate::deposit_input::DepositInput;
+pub use crate::eth1_data::Eth1Data;
+pub use crate::eth1_data_vote::Eth1DataVote;
 pub use crate::exit::Exit;
 pub use crate::fork_data::ForkData;
 pub use crate::pending_attestation_record::PendingAttestationRecord;
@@ -52,6 +56,7 @@ pub use crate::shard_committee::ShardCommittee;
 pub use crate::slashable_vote_data::SlashableVoteData;
 pub use crate::special_record::{SpecialRecord, SpecialRecordKind};
 pub use crate::validator_record::{StatusFlags as ValidatorStatusFlags, ValidatorRecord};
+pub use crate::validator_registry_delta_block::ValidatorRegistryDeltaBlock;
 
 pub type Hash256 = H256;
 pub type Address = H160;

eth2/types/src/validator_registration.rs

@@ -1,12 +0,0 @@
-use super::{Address, Hash256};
-use bls::{PublicKey, Signature};
-
-/// The information gathered from the PoW chain validator registration function.
-#[derive(Debug, Clone, PartialEq)]
-pub struct ValidatorRegistration {
-    pub pubkey: PublicKey,
-    pub withdrawal_shard: u64,
-    pub withdrawal_address: Address,
-    pub randao_commitment: Hash256,
-    pub proof_of_possession: Signature,
-}

eth2/types/src/validator_registry_delta_block.rs

@@ -0,0 +1,89 @@
+use super::Hash256;
+use crate::test_utils::TestRandom;
+use bls::PublicKey;
+use rand::RngCore;
+use ssz::{Decodable, DecodeError, Encodable, SszStream};
+
+// The information gathered from the PoW chain validator registration function.
+#[derive(Debug, Clone, PartialEq)]
+pub struct ValidatorRegistryDeltaBlock {
+    pub latest_registry_delta_root: Hash256,
+    pub validator_index: u32,
+    pub pubkey: PublicKey,
+    pub slot: u64,
+    pub flag: u64,
+}
+
+impl Default for ValidatorRegistryDeltaBlock {
+    /// Yields a "default" `ValidatorRecord`. Primarily used for testing.
+    fn default() -> Self {
+        Self {
+            latest_registry_delta_root: Hash256::zero(),
+            validator_index: std::u32::MAX,
+            pubkey: PublicKey::default(),
+            slot: std::u64::MAX,
+            flag: std::u64::MAX,
+        }
+    }
+}
+
+impl Encodable for ValidatorRegistryDeltaBlock {
+    fn ssz_append(&self, s: &mut SszStream) {
+        s.append(&self.latest_registry_delta_root);
+        s.append(&self.validator_index);
+        s.append(&self.pubkey);
+        s.append(&self.slot);
+        s.append(&self.flag);
+    }
+}
+
+impl Decodable for ValidatorRegistryDeltaBlock {
+    fn ssz_decode(bytes: &[u8], i: usize) -> Result<(Self, usize), DecodeError> {
+        let (latest_registry_delta_root, i) = <_>::ssz_decode(bytes, i)?;
+        let (validator_index, i) = <_>::ssz_decode(bytes, i)?;
+        let (pubkey, i) = <_>::ssz_decode(bytes, i)?;
+        let (slot, i) = <_>::ssz_decode(bytes, i)?;
+        let (flag, i) = <_>::ssz_decode(bytes, i)?;
+
+        Ok((
+            Self {
+                latest_registry_delta_root,
+                validator_index,
+                pubkey,
+                slot,
+                flag,
+            },
+            i,
+        ))
+    }
+}
+
+impl<T: RngCore> TestRandom<T> for ValidatorRegistryDeltaBlock {
+    fn random_for_test(rng: &mut T) -> Self {
+        Self {
+            latest_registry_delta_root: <_>::random_for_test(rng),
+            validator_index: <_>::random_for_test(rng),
+            pubkey: <_>::random_for_test(rng),
+            slot: <_>::random_for_test(rng),
+            flag: <_>::random_for_test(rng),
+        }
+    }
+}
+
+#[cfg(test)]
+mod tests {
+    use super::super::ssz::ssz_encode;
+    use super::*;
+    use crate::test_utils::{SeedableRng, TestRandom, XorShiftRng};
+
+    #[test]
+    pub fn test_ssz_round_trip() {
+        let mut rng = XorShiftRng::from_seed([42; 16]);
+        let original = ValidatorRegistryDeltaBlock::random_for_test(&mut rng);
+
+        let bytes = ssz_encode(&original);
+        let (decoded, _) = <_>::ssz_decode(&bytes, 0).unwrap();
+
+        assert_eq!(original, decoded);
+    }
+}