LocalizedTransaction

ethcore/src/blockchain.rs

@@ -111,19 +111,19 @@ pub trait BlockProvider {
 	}
 
 	/// Get transaction with given transaction hash.
-	fn transaction(&self, hash: &H256) -> Option<SignedTransaction> {
+	fn transaction(&self, hash: &H256) -> Option<LocalizedTransaction> {
 		self.transaction_address(hash).and_then(|address| self.transaction_at(&address))
 	}
 
 	/// Get transaction at given address.
-	fn transaction_at(&self, address: &TransactionAddress) -> Option<SignedTransaction> {
-		self.block(&address.block_hash).map(|bytes| BlockView::new(&bytes).transactions()).and_then(|t| t.into_iter().nth(address.index))
+	fn transaction_at(&self, address: &TransactionAddress) -> Option<LocalizedTransaction> {
+		self.block(&address.block_hash).map(|bytes| BlockView::new(&bytes).localized_transactions()).and_then(|t| t.into_iter().nth(address.index))
 	}
 
 	/// Get a list of transactions for a given block.
 	/// Returns None if block deos not exist.
-	fn transactions(&self, hash: &H256) -> Option<Vec<SignedTransaction>> {
-		self.block(hash).map(|bytes| BlockView::new(&bytes).transactions())
+	fn transactions(&self, hash: &H256) -> Option<Vec<LocalizedTransaction>> {
+		self.block(hash).map(|bytes| BlockView::new(&bytes).localized_transactions())
 	}
 
 	/// Returns reference to genesis hash.

ethcore/src/client.rs

@@ -31,7 +31,7 @@ use service::{NetSyncMessage, SyncMessage};
 use env_info::LastHashes;
 use verification::*;
 use block::*;
-use transaction::SignedTransaction;
+use transaction::LocalizedTransaction;
 pub use blockchain::TreeRoute;
 
 /// General block status
@@ -106,7 +106,7 @@ pub trait BlockChainClient : Sync + Send {
 	fn block_total_difficulty_at(&self, n: BlockNumber) -> Option<U256>;
 
 	/// Get transaction with given hash.
-	fn transaction(&self, hash: &H256) -> Option<SignedTransaction>;
+	fn transaction(&self, hash: &H256) -> Option<LocalizedTransaction>;
 
 	/// Get a tree route between `from` and `to`.
 	/// See `BlockChain::tree_route`.
@@ -392,7 +392,7 @@ impl BlockChainClient for Client {
 		self.chain.read().unwrap().block_hash(n).and_then(|h| self.block_total_difficulty(&h))
 	}
 
-	fn transaction(&self, hash: &H256) -> Option<SignedTransaction> {
+	fn transaction(&self, hash: &H256) -> Option<LocalizedTransaction> {
 		self.chain.read().unwrap().transaction(hash)
 	}
 

ethcore/src/transaction.rs

@@ -19,6 +19,7 @@
 use util::*;
 use error::*;
 use evm::Schedule;
+use header::BlockNumber;
 
 #[derive(Debug, Clone, PartialEq, Eq)]
 /// Transaction action type.
@@ -289,6 +290,26 @@ impl SignedTransaction {
 	}
 }
 
+/// Signed Transaction that is a part of canon blockchain.
+pub struct LocalizedTransaction {
+	/// Signed part.
+	pub signed: SignedTransaction,
+	/// Block number.
+	pub block_number: BlockNumber,
+	/// Block hash.
+	pub block_hash: H256,
+	/// Transaction index within block.
+	pub transaction_index: usize
+}
+
+impl Deref for LocalizedTransaction {
+	type Target = SignedTransaction;
+
+	fn deref(&self) -> &Self::Target {
+		&self.signed
+	}
+}
+
 #[test]
 fn sender_test() {
 	let t: SignedTransaction = decode(&FromHex::from_hex("f85f800182520894095e7baea6a6c7c4c2dfeb977efac326af552d870a801ba048b55bfa915ac795c431978d8a6a992b628d557da5ff759b307d495a36649353a0efffd310ac743f371de3b9f7f9cb56c0b28ad43601b4ab949f53faa07bd2c804").unwrap());

ethcore/src/views.rs

@@ -155,6 +155,22 @@ impl<'a> BlockView<'a> {
 		self.rlp.val_at(1)
 	}
 
+	/// Return List of transactions with additional localization info.
+	pub fn localized_transactions(&self) -> Vec<LocalizedTransaction> {
+		let header = self.header_view();
+		let block_hash = header.sha3();
+		let block_number = header.number();
+		self.rlp.val_at::<Vec<SignedTransaction>>(1)
+			.into_iter()
+			.enumerate()
+			.map(|(i, t)| LocalizedTransaction {
+				signed: t,
+				block_hash: block_hash.clone(),
+				block_number: block_number,
+				transaction_index: i
+			}).collect()
+	}
+
 	/// Return number of transactions in given block, without deserializing them.
 	pub fn transactions_count(&self) -> usize {
 		self.rlp.at(1).iter().count()