From a7802ea523e56c79a1b9e9620c48d68bcff5212e Mon Sep 17 00:00:00 2001
From: imxyb <xyb4638@gmail.com>
Date: Tue, 28 Mar 2023 17:25:11 +0800
Subject: [PATCH] add supprt for go1.20 http.rwUnwrapper

---
 response.go      | 7 +++++++
 response_test.go | 8 ++++++++
 2 files changed, 15 insertions(+)

diff --git a/response.go b/response.go
index 84f7c9e7..d9c9aa6e 100644
--- a/response.go
+++ b/response.go
@@ -94,6 +94,13 @@ func (r *Response) Hijack() (net.Conn, *bufio.ReadWriter, error) {
 	return r.Writer.(http.Hijacker).Hijack()
 }
 
+// Unwrap returns the original http.ResponseWriter.
+// ResponseController can be used to access the original http.ResponseWriter.
+// See [https://go.dev/blog/go1.20]
+func (r *Response) Unwrap() http.ResponseWriter {
+	return r.Writer
+}
+
 func (r *Response) reset(w http.ResponseWriter) {
 	r.beforeFuncs = nil
 	r.afterFuncs = nil
diff --git a/response_test.go b/response_test.go
index d95e079f..e4fd636d 100644
--- a/response_test.go
+++ b/response_test.go
@@ -72,3 +72,11 @@ func TestResponse_ChangeStatusCodeBeforeWrite(t *testing.T) {
 
 	assert.Equal(t, http.StatusOK, rec.Code)
 }
+
+func TestResponse_Unwrap(t *testing.T) {
+	e := New()
+	rec := httptest.NewRecorder()
+	res := &Response{echo: e, Writer: rec}
+
+	assert.Equal(t, rec, res.Unwrap())
+}