From 4ef4819bf9c90ba6600ced11e5ae72b08877e7ba Mon Sep 17 00:00:00 2001
From: Marek Kotewicz <marek.kotewicz@gmail.com>
Date: Mon, 13 Jun 2016 09:51:14 -0700
Subject: [PATCH] removed try_seal from MinerClient interface (#1262)

---
 ethcore/src/client/client.rs      | 4 ----
 ethcore/src/client/mod.rs         | 5 +----
 ethcore/src/client/test_client.rs | 7 +------
 ethcore/src/miner/miner.rs        | 4 ++--
 ethcore/src/tests/client.rs       | 1 -
 5 files changed, 4 insertions(+), 17 deletions(-)

diff --git a/ethcore/src/client/client.rs b/ethcore/src/client/client.rs
index 213ee9755..75a60204f 100644
--- a/ethcore/src/client/client.rs
+++ b/ethcore/src/client/client.rs
@@ -785,10 +785,6 @@ impl<V> MiningBlockChainClient for Client<V> where V: Verifier {
 
 		open_block
 	}
-
-	fn try_seal(&self, block: LockedBlock, seal: Vec<Bytes>) -> Result<SealedBlock, LockedBlock> {
-		block.try_seal(self.engine.deref().deref(), seal)
-	}
 }
 
 impl MayPanic for Client {
diff --git a/ethcore/src/client/mod.rs b/ethcore/src/client/mod.rs
index eda850d9d..dbd09ea4a 100644
--- a/ethcore/src/client/mod.rs
+++ b/ethcore/src/client/mod.rs
@@ -36,7 +36,7 @@ use util::hash::{Address, H256, H2048};
 use util::numbers::U256;
 use blockchain::TreeRoute;
 use block_queue::BlockQueueInfo;
-use block::{LockedBlock, SealedBlock, OpenBlock};
+use block::OpenBlock;
 use header::{BlockNumber, Header};
 use transaction::{LocalizedTransaction, SignedTransaction};
 use log_entry::LocalizedLogEntry;
@@ -197,9 +197,6 @@ pub trait BlockChainClient : Sync + Send {
 
 /// Extended client interface used for mining
 pub trait MiningBlockChainClient : BlockChainClient {
-	/// Attempts to seal given block. Returns `SealedBlock` on success and the same block in case of error.
-	fn try_seal(&self, block: LockedBlock, seal: Vec<Bytes>) -> Result<SealedBlock, LockedBlock>;
-
 	/// Returns OpenBlock prepared for closing.
 	fn prepare_open_block(&self, author: Address, gas_floor_target: U256, extra_data: Bytes)
 		-> OpenBlock;
diff --git a/ethcore/src/client/test_client.rs b/ethcore/src/client/test_client.rs
index d02afc0f7..f1a7a6674 100644
--- a/ethcore/src/client/test_client.rs
+++ b/ethcore/src/client/test_client.rs
@@ -31,7 +31,7 @@ use evm::Factory as EvmFactory;
 use miner::{Miner, MinerService};
 
 use block_queue::BlockQueueInfo;
-use block::{SealedBlock, LockedBlock, OpenBlock};
+use block::OpenBlock;
 use executive::Executed;
 use error::{ExecutionError};
 use trace::LocalizedTrace;
@@ -240,11 +240,6 @@ impl TestBlockChainClient {
 }
 
 impl MiningBlockChainClient for TestBlockChainClient {
-	fn try_seal(&self, block: LockedBlock, _seal: Vec<Bytes>) -> Result<SealedBlock, LockedBlock> {
-		Err(block)
-	}
-
-
 	fn prepare_open_block(&self, _author: Address, _gas_floor_target: U256, _extra_data: Bytes) -> OpenBlock {
 		unimplemented!();
 	}
diff --git a/ethcore/src/miner/miner.rs b/ethcore/src/miner/miner.rs
index ceddb31bc..2df0c184b 100644
--- a/ethcore/src/miner/miner.rs
+++ b/ethcore/src/miner/miner.rs
@@ -181,7 +181,7 @@ impl Miner {
 			});
 			if let Some(seal) = s {
 				trace!(target: "miner", "prepare_sealing: managed internal seal. importing...");
-				if let Ok(sealed) = chain.try_seal(block.lock(), seal) {
+				if let Ok(sealed) = block.lock().try_seal(self.engine(), seal) {
 					if let Ok(_) = chain.import_block(sealed.rlp_bytes()) {
 						trace!(target: "miner", "prepare_sealing: sealed internally and imported. leaving.");
 					} else {
@@ -510,7 +510,7 @@ impl MinerService for Miner {
 
 	fn submit_seal(&self, chain: &MiningBlockChainClient, pow_hash: H256, seal: Vec<Bytes>) -> Result<(), Error> {
 		if let Some(b) = self.sealing_work.lock().unwrap().take_used_if(|b| &b.hash() == &pow_hash) {
-			match chain.try_seal(b.lock(), seal) {
+			match b.lock().try_seal(self.engine(), seal) {
 				Err(_) => {
 					info!(target: "miner", "Mined block rejected, PoW was invalid.");
 					Err(Error::PowInvalid)
diff --git a/ethcore/src/tests/client.rs b/ethcore/src/tests/client.rs
index 789943942..d87b41b62 100644
--- a/ethcore/src/tests/client.rs
+++ b/ethcore/src/tests/client.rs
@@ -140,5 +140,4 @@ fn can_mine() {
 	let b = client.prepare_open_block(Address::default(), 31415926.into(), vec![]).close();
 
 	assert_eq!(*b.block().header().parent_hash(), BlockView::new(&dummy_blocks[0]).header_view().sha3());
-	assert!(client.try_seal(b.lock(), vec![]).is_ok());
 }