add script error to TransactionError::Signature

sync/src/synchronization_verifier.rs

@@ -271,6 +271,7 @@ pub mod tests {
 	use chain::{IndexedBlock, IndexedTransaction};
 	use super::{Verifier, BlockVerificationSink, TransactionVerificationSink, AsyncVerifier, VerificationTask, ChainVerifierWrapper};
 	use types::{BlockHeight, StorageRef, MemoryPoolRef};
+	use script::Error as ScriptError;
 	use VerificationParameters;
 
 	#[derive(Default)]
@@ -417,7 +418,7 @@ pub mod tests {
 			verification_level: VerificationLevel::Full,
 			verification_edge: 1.into(),
 		});
-		assert_eq!(wrapper.verify_block(&bad_transaction_block), Err(VerificationError::Transaction(1, TransactionError::Signature(0))));
+		assert_eq!(wrapper.verify_block(&bad_transaction_block), Err(VerificationError::Transaction(1, TransactionError::Signature(0, ScriptError::InvalidStackOperation))));
 	}
 
 	#[test]

verification/src/accept_transaction.rs

@@ -374,7 +374,7 @@ impl<'a> TransactionEval<'a> {
 				.verify_witness(self.verify_witness);
 
 			try!(verify_script(&input, &output, &script_witness, &flags, &checker, self.signature_version)
-				.map_err(|_| TransactionError::Signature(index)));
+				.map_err(|e| TransactionError::Signature(index, e)));
 		}
 
 		Ok(())

verification/src/error.rs

@@ -1,6 +1,7 @@
 use hash::H256;
 use compact::Compact;
 use db::Error as DBError;
+use script::Error as SignatureError;
 
 #[derive(Debug, PartialEq)]
 /// All possible verification errors
@@ -86,7 +87,7 @@ pub enum TransactionError {
 	/// Referenced coinbase output for the transaction input is not mature enough
 	Maturity,
 	/// Signature invalid for given input
-	Signature(usize),
+	Signature(usize, SignatureError),
 	/// Unknown previous transaction referenced
 	UnknownReference(H256),
 	/// Spends more than claims