From 75f4fac8cfa13b785d8b70043cd46fcb9a0a519c Mon Sep 17 00:00:00 2001
From: alan <652732310@qq.com>
Date: Tue, 29 Oct 2024 13:06:16 +0800
Subject: [PATCH] add comment to GetBalance

---
 core/vm/interface.go | 1 +
 1 file changed, 1 insertion(+)

diff --git a/core/vm/interface.go b/core/vm/interface.go
index 9229f4d2cd..a668521320 100644
--- a/core/vm/interface.go
+++ b/core/vm/interface.go
@@ -35,6 +35,7 @@ type StateDB interface {
 
 	SubBalance(common.Address, *uint256.Int, tracing.BalanceChangeReason) uint256.Int
 	AddBalance(common.Address, *uint256.Int, tracing.BalanceChangeReason) uint256.Int
+	// note: should never modify the returned value, as it's reused for performance purpose
 	GetBalance(common.Address) *uint256.Int
 
 	GetNonce(common.Address) uint64