From 8f8659b3a4cf633abde7fb32b5bca50f4e3fea37 Mon Sep 17 00:00:00 2001
From: qm012 <urobot@qq.com>
Date: Wed, 23 Jun 2021 13:34:48 +0800
Subject: [PATCH] optimization code

---
 cache.go | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/cache.go b/cache.go
index 78e2006..92f9f2c 100644
--- a/cache.go
+++ b/cache.go
@@ -165,8 +165,7 @@ func (v *Validate) extractStructCache(current reflect.Value, sName string) *cStr
 		}
 		// The priority of RegisterTagNameFunc is higher than the custom tag value
 		if v.hasTagNameFunc {
-			value := v.tagNameFunc(fld)
-			if len(value) != 0 {
+			if value := v.tagNameFunc(fld); len(value) != 0 {
 				tagValues[defaultErrTagName] = value
 			}
 		}