External hook to extend TransactionBuilder.FindCoin

MetacoSA · Nov 18, 2014 · f8a78a6 · f8a78a6
1 parent d667ca3
commit f8a78a6
Showing 1 changed file with 8 additions and 1 deletion.
diff --git a/NBitcoin/TransactionBuilder.cs b/NBitcoin/TransactionBuilder.cs
@@ -376,6 +376,8 @@ public ICoinSelector CoinSelector
 			set;
 		}
 
+		public Func<OutPoint, ICoin> CoinFinder { get; set; }
+
 		LockTime? _LockTime;
 		public TransactionBuilder SetLockTime(LockTime lockTime)
 		{
@@ -777,7 +779,12 @@ private Exception CoinNotFound(TxIn txIn)
 
 		private ICoin FindCoin(OutPoint outPoint)
 		{
-			return _BuilderGroups.SelectMany(c => c.Coins).FirstOrDefault(c => c.Outpoint == outPoint);
+			var result = _BuilderGroups.SelectMany(c => c.Coins).FirstOrDefault(c => c.Outpoint == outPoint);
+
+			if (result == null && CoinFinder != null)
+				result = CoinFinder(outPoint);
+
+			return result;
 		}
 
 		readonly static PayToScriptHashTemplate payToScriptHash = new PayToScriptHashTemplate();