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feat: introduce StateCommitment type
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Original file line number | Diff line number | Diff line change |
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@@ -0,0 +1,18 @@ | ||
use alloy_primitives::B256; | ||
use revm_primitives::keccak256; | ||
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/// Trait for hashing keys in state. | ||
pub trait KeyHasher: Default + Clone + Send + Sync + 'static { | ||
/// Hashes the given bytes into a 256-bit hash. | ||
fn hash_key<T: AsRef<[u8]>>(bytes: T) -> B256; | ||
} | ||
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/// A key hasher that uses the Keccak-256 hash function. | ||
#[derive(Clone, Debug, Default)] | ||
pub struct KeccakKeyHasher; | ||
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impl KeyHasher for KeccakKeyHasher { | ||
fn hash_key<T: AsRef<[u8]>>(bytes: T) -> B256 { | ||
keccak256(bytes) | ||
} | ||
} |
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Original file line number | Diff line number | Diff line change |
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@@ -0,0 +1,38 @@ | ||
use crate::{ | ||
DatabaseHashedCursorFactory, DatabaseProof, DatabaseStateRoot, DatabaseStorageRoot, | ||
DatabaseTrieCursorFactory, DatabaseTrieWitness, | ||
}; | ||
use reth_db::transaction::DbTx; | ||
use reth_trie::{ | ||
proof::Proof, witness::TrieWitness, KeccakKeyHasher, KeyHasher, StateRoot, StorageRoot, | ||
}; | ||
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/// The `StateCommitment` trait provides associated types for state commitment operations. | ||
pub trait StateCommitment: std::fmt::Debug + Send + Sync + Unpin + 'static { | ||
/// The state root type. | ||
type StateRoot<'a, TX: DbTx + 'a>: DatabaseStateRoot<'a, TX>; | ||
/// The storage root type. | ||
type StorageRoot<'a, TX: DbTx + 'a>: DatabaseStorageRoot<'a, TX>; | ||
/// The state proof type. | ||
type StateProof<'a, TX: DbTx + 'a>: DatabaseProof<'a, TX>; | ||
/// The state witness type. | ||
type StateWitness<'a, TX: DbTx + 'a>: DatabaseTrieWitness<'a, TX>; | ||
/// The key hasher type. | ||
type KeyHasher: KeyHasher; | ||
} | ||
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/// The state commitment type for Ethereum's Merkle Patricia Trie. | ||
#[derive(Debug)] | ||
pub struct MerklePatriciaTrie; | ||
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impl StateCommitment for MerklePatriciaTrie { | ||
type StateRoot<'a, TX: DbTx + 'a> = | ||
StateRoot<DatabaseTrieCursorFactory<'a, TX>, DatabaseHashedCursorFactory<'a, TX>>; | ||
type StorageRoot<'a, TX: DbTx + 'a> = | ||
StorageRoot<DatabaseTrieCursorFactory<'a, TX>, DatabaseHashedCursorFactory<'a, TX>>; | ||
type StateProof<'a, TX: DbTx + 'a> = | ||
Proof<DatabaseTrieCursorFactory<'a, TX>, DatabaseHashedCursorFactory<'a, TX>>; | ||
type StateWitness<'a, TX: DbTx + 'a> = | ||
TrieWitness<DatabaseTrieCursorFactory<'a, TX>, DatabaseHashedCursorFactory<'a, TX>>; | ||
type KeyHasher = KeccakKeyHasher; | ||
} |
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