From 6633c2b0fcb6686dead8680cd2c1ed45cb6a89b0 Mon Sep 17 00:00:00 2001
From: "shaun.fu" <shaun.fu@shopee.com>
Date: Mon, 28 Aug 2023 13:49:32 +0800
Subject: [PATCH] fix: check interface value

---
 get.go | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/get.go b/get.go
index 0dc3a47..5745c78 100644
--- a/get.go
+++ b/get.go
@@ -14,6 +14,10 @@ func (e *ecp) getValue(config interface{}, keyName string) (reflect.Value, error
 	if !v.IsValid() {
 		return reflect.Value{}, fmt.Errorf("key %s not found", keyName)
 	}
+
+	if !v.CanInterface() {
+		return reflect.Value{}, fmt.Errorf("bad structure field %s", keyName)
+	}
 	return v, nil
 }