From 65f3fcf73943682831f10313e3a27b8ca210dd0d Mon Sep 17 00:00:00 2001
From: huangzw <huangzw@2345.com>
Date: Mon, 21 Apr 2025 09:55:16 +0800
Subject: [PATCH] refactor: replace magic number 128 with unicode.MaxASCII in
 AsciiJSON Render

---
 render/json.go | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/render/json.go b/render/json.go
index a6b54dc3..23923c44 100644
--- a/render/json.go
+++ b/render/json.go
@@ -9,6 +9,7 @@ import (
 	"fmt"
 	"html/template"
 	"net/http"
+	"unicode"
 
 	"github.com/gin-gonic/gin/internal/bytesconv"
 	"github.com/gin-gonic/gin/internal/json"
@@ -162,7 +163,7 @@ func (r AsciiJSON) Render(w http.ResponseWriter) error {
 	escapeBuf := make([]byte, 0, 6) // Preallocate 6 bytes for Unicode escape sequences
 
 	for _, r := range bytesconv.BytesToString(ret) {
-		if r >= 128 {
+		if r > unicode.MaxASCII {
 			escapeBuf = fmt.Appendf(escapeBuf[:0], "\\u%04x", r) // Reuse escapeBuf
 			buffer.Write(escapeBuf)
 		} else {