From f3278ea5b2c519dd053bd86aea042838e82e59de Mon Sep 17 00:00:00 2001
From: Roman Khimov <roman@nspcc.ru>
Date: Tue, 16 Nov 2021 23:11:23 +0300
Subject: [PATCH] core: reuse the transfer log buffer

Make it a bit more efficient.
---
 pkg/core/blockchain.go | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/pkg/core/blockchain.go b/pkg/core/blockchain.go
index 3b5b23bdb..bc519e1cd 100644
--- a/pkg/core/blockchain.go
+++ b/pkg/core/blockchain.go
@@ -1393,7 +1393,8 @@ func appendTokenTransfer(cache dao.DAO, transCache map[util.Uint160]transferData
 			return err
 		}
 		*nextBatch++
-		*log = state.TokenTransferLog{}
+		// Put makes a copy of it anyway.
+		log.Raw = log.Raw[:0]
 	}
 	transCache[addr] = transferData
 	return nil