removed client error (#9253)

ethcore/src/client/client.rs

@@ -34,7 +34,6 @@ use ethereum_types::{H256, Address, U256};
 use block::{IsBlock, LockedBlock, Drain, ClosedBlock, OpenBlock, enact_verified, SealedBlock};
 use blockchain::{BlockChain, BlockChainDB, BlockProvider, TreeRoute, ImportRoute, TransactionAddress, ExtrasInsert};
 use client::ancient_import::AncientVerifier;
-use client::Error as ClientError;
 use client::{
 	Nonce, Balance, ChainInfo, BlockInfo, CallContract, TransactionInfo,
 	RegistryInfo, ReopenBlock, PrepareOpenBlock, ScheduleInfo, ImportSealedBlock,
@@ -933,7 +932,7 @@ impl Client {
 	}
 
 	// prune ancient states until below the memory limit or only the minimum amount remain.
-	fn prune_ancient(&self, mut state_db: StateDB, chain: &BlockChain) -> Result<(), ClientError> {
+	fn prune_ancient(&self, mut state_db: StateDB, chain: &BlockChain) -> Result<(), ::error::Error> {
 		let number = match state_db.journal_db().latest_era() {
 			Some(n) => n,
 			None => return Ok(()),

ethcore/src/client/mod.rs

@@ -19,7 +19,6 @@
 mod ancient_import;
 mod client;
 mod config;
-mod error;
 #[cfg(any(test, feature = "test-helpers"))]
 mod evm_test_client;
 mod io_message;
@@ -29,7 +28,6 @@ mod trace;
 
 pub use self::client::*;
 pub use self::config::{Mode, ClientConfig, DatabaseCompactionProfile, BlockChainConfig, VMType};
-pub use self::error::Error;
 #[cfg(any(test, feature = "test-helpers"))]
 pub use self::evm_test_client::{EvmTestClient, EvmTestError, TransactResult};
 pub use self::io_message::ClientIoMessage;

ethcore/src/error.rs

@@ -24,7 +24,6 @@ use unexpected::{Mismatch, OutOfBounds};
 use ethtrie::TrieError;
 use io::*;
 use header::BlockNumber;
-use client::Error as ClientError;
 use snapshot::Error as SnapshotError;
 use engines::EngineError;
 use ethkey::Error as EthkeyError;
@@ -250,12 +249,6 @@ error_chain! {
 	}
 
 	errors {
-		#[doc = "Client configuration error."]
-		Client(err: ClientError) {
-			description("Client configuration error.")
-			display("Client configuration error {}", err)
-		}
-
 		#[doc = "Snapshot error."]
 		Snapshot(err: SnapshotError) {
 			description("Snapshot error.")
@@ -297,15 +290,6 @@ error_chain! {
 /// Result of import block operation.
 pub type ImportResult = EthcoreResult<H256>;
 
-impl From<ClientError> for Error {
-	fn from(err: ClientError) -> Error {
-		match err {
-			ClientError::Trie(err) => ErrorKind::Trie(err).into(),
-			_ => ErrorKind::Client(err).into()
-		}
-	}
-}
-
 impl From<AccountsError> for Error {
 	fn from(err: AccountsError) -> Error {
 		ErrorKind::AccountProvider(err).into()