Rename OptimisedLMDGhost to BitwiseLMDGhost.

eth2/fork_choice/src/bitwise_lmd_ghost.rs

@@ -37,7 +37,7 @@ fn power_of_2_below(x: u32) -> u32 {
 }
 
 /// Stores the necessary data structures to run the optimised lmd ghost algorithm.
-pub struct OptimisedLMDGhost<T: ClientDB + Sized> {
+pub struct BitwiseLMDGhost<T: ClientDB + Sized> {
     /// A cache of known ancestors at given heights for a specific block.
     //TODO: Consider FnvHashMap
     cache: HashMap<CacheKey<u32>, Hash256>,
@@ -56,7 +56,7 @@ pub struct OptimisedLMDGhost<T: ClientDB + Sized> {
     max_known_height: SlotHeight,
 }
 
-impl<T> OptimisedLMDGhost<T>
+impl<T> BitwiseLMDGhost<T>
 where
     T: ClientDB + Sized,
 {
@@ -64,7 +64,7 @@ where
         block_store: Arc<BeaconBlockStore<T>>,
         state_store: Arc<BeaconStateStore<T>>,
     ) -> Self {
-        OptimisedLMDGhost {
+        BitwiseLMDGhost {
             cache: HashMap::new(),
             ancestors: vec![HashMap::new(); 16],
             latest_attestation_targets: HashMap::new(),
@@ -253,7 +253,7 @@ where
     }
 }
 
-impl<T: ClientDB + Sized> ForkChoice for OptimisedLMDGhost<T> {
+impl<T: ClientDB + Sized> ForkChoice for BitwiseLMDGhost<T> {
     fn add_block(
         &mut self,
         block: &BeaconBlock,

eth2/fork_choice/src/lib.rs

@@ -9,12 +9,12 @@
 //! production**.
 //! - [`slow_lmd_ghost`]: This is a simple and very inefficient implementation given in the ethereum 2.0
 //! specifications (https://github.com/ethereum/eth2.0-specs/blob/v0.1/specs/core/0_beacon-chain.md#get_block_root).
-//! - [`optimised_lmd_ghost`]: This is an optimised version of bitwise LMD-GHOST as proposed
+//! - [`bitwise_lmd_ghost`]: This is an optimised version of bitwise LMD-GHOST as proposed
 //! by Vitalik. The reference implementation can be found at: https://github.com/ethereum/research/blob/master/ghost/ghost.py
 //!
 //! [`longest-chain`]: struct.LongestChain.html
 //! [`slow_lmd_ghost`]: struct.SlowLmdGhost.html
-//! [`optimised_lmd_ghost`]: struct.OptimisedLmdGhost.html
+//! [`bitwise_lmd_ghost`]: struct.OptimisedLmdGhost.html
 
 extern crate db;
 extern crate ssz;
@@ -22,16 +22,16 @@ extern crate types;
 #[macro_use]
 extern crate log;
 
+pub mod bitwise_lmd_ghost;
 pub mod longest_chain;
-pub mod optimised_lmd_ghost;
 pub mod slow_lmd_ghost;
 
 use db::stores::BeaconBlockAtSlotError;
 use db::DBError;
 use types::{BeaconBlock, ChainSpec, Hash256};
 
+pub use bitwise_lmd_ghost::BitwiseLMDGhost;
 pub use longest_chain::LongestChain;
-pub use optimised_lmd_ghost::OptimisedLMDGhost;
 pub use slow_lmd_ghost::SlowLMDGhost;
 
 /// Defines the interface for Fork Choices. Each Fork choice will define their own data structures
@@ -101,6 +101,6 @@ pub enum ForkChoiceAlgorithm {
     LongestChain,
     /// A simple and highly inefficient implementation of LMD ghost.
     SlowLMDGhost,
-    /// An optimised version of LMD-GHOST by Vitalik.
-    OptimisedLMDGhost,
+    /// An optimised version of bitwise LMD-GHOST by Vitalik.
+    BitwiseLMDGhost,
 }

eth2/fork_choice/tests/tests.rs

@@ -16,7 +16,7 @@ use bls::{PublicKey, Signature};
 use db::stores::{BeaconBlockStore, BeaconStateStore};
 use db::MemoryDB;
 //use env_logger::{Builder, Env};
-use fork_choice::{ForkChoice, ForkChoiceAlgorithm, LongestChain, OptimisedLMDGhost, SlowLMDGhost};
+use fork_choice::{BitwiseLMDGhost, ForkChoice, ForkChoiceAlgorithm, LongestChain, SlowLMDGhost};
 use ssz::ssz_encode;
 use std::collections::HashMap;
 use std::sync::Arc;
@@ -29,13 +29,13 @@ use yaml_rust::yaml;
 // Note: We Assume the block Id's are hex-encoded.
 
 #[test]
-fn test_optimised_lmd_ghost() {
+fn test_bitwise_lmd_ghost() {
     // set up logging
     //Builder::from_env(Env::default().default_filter_or("trace")).init();
 
     test_yaml_vectors(
-        ForkChoiceAlgorithm::OptimisedLMDGhost,
-        "tests/optimised_lmd_ghost_test_vectors.yaml",
+        ForkChoiceAlgorithm::BitwiseLMDGhost,
+        "tests/bitwise_lmd_ghost_test_vectors.yaml",
         100,
     );
 }
@@ -214,7 +214,7 @@ fn setup_inital_state(
 
     // the fork choice instantiation
     let fork_choice: Box<ForkChoice> = match fork_choice_algo {
-        ForkChoiceAlgorithm::OptimisedLMDGhost => Box::new(OptimisedLMDGhost::new(
+        ForkChoiceAlgorithm::BitwiseLMDGhost => Box::new(BitwiseLMDGhost::new(
             block_store.clone(),
             state_store.clone(),
         )),