More leftovers

ethcore/sync/Cargo.toml

@@ -13,7 +13,6 @@ bytes = { package = "parity-bytes", version = "0.1" }
 client-traits = { path = "../client-traits" }
 common-types = { path = "../types" }
 devp2p = { package = "ethcore-network-devp2p", path = "../../util/network-devp2p" }
-engine = { path = "../engine" }
 enum_primitive = "0.1.1"
 ethcore-io = { path = "../../util/io" }
 ethcore-private-tx = { path = "../private-tx" }
@@ -39,6 +38,7 @@ trace-time = "0.1"
 triehash-ethereum = { version = "0.2", path = "../../util/triehash-ethereum" }
 
 [dev-dependencies]
+engine = { path = "../engine" }
 env_logger = "0.5"
 ethcore = { path = "..", features = ["test-helpers"] }
 ethcore-io = { path = "../../util/io", features = ["mio"] }

ethcore/sync/src/chain/fork_filter.rs

@@ -14,6 +14,9 @@
 // You should have received a copy of the GNU General Public License
 // along with Parity Ethereum.  If not, see <http://www.gnu.org/licenses/>.
 
+//! This module contains a wrapper that connects this codebase with `ethereum-forkid` crate which provides `FORK_ID`
+//! to support Ethereum network protocol, version 64 and above.
+
 // Re-export ethereum-forkid crate contents here.
 pub use ethereum_forkid::{BlockNumber, ForkId, RejectReason};
 
@@ -28,7 +31,7 @@ pub struct ForkFilterApi {
 }
 
 impl ForkFilterApi {
-	/// Create `ForkFilterApi` from `Engine` and a closure that returns `BlockChainInfo`
+	/// Create `ForkFilterApi` from `ChainInfo` and an `Iterator` over the hard forks.
 	pub fn new<C: ?Sized + ChainInfo, I: IntoIterator<Item = BlockNumber>>(client: &C, forks: I) -> Self {
 		let chain_info = client.chain_info();
 		Self {