From aa844e102ed7f8a3e03f45acb75fe7f341d814be Mon Sep 17 00:00:00 2001
From: hopehook <hopehook@qq.com>
Date: Sat, 1 Oct 2022 21:37:46 +0800
Subject: [PATCH 1/4] Feat: Convert strings and slices using the officially
 recommended way.

Go official is expected to provide unsafe.{SliceData, Slice, StringData,
String} series methods in version 1.20 for conversion of strings and
slices.
---
 go.mod                                        |  2 +-
 .../{bytesconv.go => bytesconv_1.19.go}       |  3 +++
 internal/bytesconv/bytesconv_1.20.go          | 22 +++++++++++++++++++
 3 files changed, 26 insertions(+), 1 deletion(-)
 rename internal/bytesconv/{bytesconv.go => bytesconv_1.19.go} (93%)
 create mode 100644 internal/bytesconv/bytesconv_1.20.go

diff --git a/go.mod b/go.mod
index fa1db99ac4..0302b7d754 100644
--- a/go.mod
+++ b/go.mod
@@ -1,6 +1,6 @@
 module github.com/gin-gonic/gin
 
-go 1.18
+go 1.20
 
 require (
 	github.com/bytedance/sonic v1.4.0
diff --git a/internal/bytesconv/bytesconv.go b/internal/bytesconv/bytesconv_1.19.go
similarity index 93%
rename from internal/bytesconv/bytesconv.go
rename to internal/bytesconv/bytesconv_1.19.go
index 86e4c4d44c..15b613c629 100644
--- a/internal/bytesconv/bytesconv.go
+++ b/internal/bytesconv/bytesconv_1.19.go
@@ -2,6 +2,9 @@
 // Use of this source code is governed by a MIT style
 // license that can be found in the LICENSE file.
 
+//go:build !go1.20
+// +build !go1.20
+
 package bytesconv
 
 import (
diff --git a/internal/bytesconv/bytesconv_1.20.go b/internal/bytesconv/bytesconv_1.20.go
new file mode 100644
index 0000000000..93879468a7
--- /dev/null
+++ b/internal/bytesconv/bytesconv_1.20.go
@@ -0,0 +1,22 @@
+// Copyright 2022 Gin Core Team. All rights reserved.
+// Use of this source code is governed by a MIT style
+// license that can be found in the LICENSE file.
+
+//go:build go1.20
+// +build go1.20
+
+package bytesconv
+
+import (
+	"unsafe"
+)
+
+// StringToBytes converts string to byte slice without a memory allocation.
+func StringToBytes(s string) []byte {
+	return unsafe.Slice(unsafe.StringData(s), len(s))
+}
+
+// BytesToString converts byte slice to string without a memory allocation.
+func BytesToString(b []byte) string {
+	return unsafe.String(unsafe.SliceData(b), len(b))
+}

From ad7779d934e177d4e94ce6c5f83075278450912a Mon Sep 17 00:00:00 2001
From: hopehook <hopehook@qq.com>
Date: Wed, 8 Feb 2023 17:40:59 +0800
Subject: [PATCH 2/4] chore: add reference documentation link to comment of
 code

---
 internal/bytesconv/bytesconv_1.20.go | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/internal/bytesconv/bytesconv_1.20.go b/internal/bytesconv/bytesconv_1.20.go
index 93879468a7..7c1cae1254 100644
--- a/internal/bytesconv/bytesconv_1.20.go
+++ b/internal/bytesconv/bytesconv_1.20.go
@@ -12,11 +12,13 @@ import (
 )
 
 // StringToBytes converts string to byte slice without a memory allocation.
+// For more details, see https://github.com/golang/go/issues/53003#issuecomment-1140276077.
 func StringToBytes(s string) []byte {
 	return unsafe.Slice(unsafe.StringData(s), len(s))
 }
 
 // BytesToString converts byte slice to string without a memory allocation.
+// For more details, see https://github.com/golang/go/issues/53003#issuecomment-1140276077.
 func BytesToString(b []byte) string {
 	return unsafe.String(unsafe.SliceData(b), len(b))
 }

From f684de861824ff54e91b5b873403dcb067f6c567 Mon Sep 17 00:00:00 2001
From: hopehook <hopehook@qq.com>
Date: Wed, 8 Feb 2023 23:23:26 +0800
Subject: [PATCH 3/4] chore: update Copyright

---
 internal/bytesconv/bytesconv_1.20.go | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/internal/bytesconv/bytesconv_1.20.go b/internal/bytesconv/bytesconv_1.20.go
index 7c1cae1254..f5001878d5 100644
--- a/internal/bytesconv/bytesconv_1.20.go
+++ b/internal/bytesconv/bytesconv_1.20.go
@@ -1,4 +1,4 @@
-// Copyright 2022 Gin Core Team. All rights reserved.
+// Copyright 2023 Gin Core Team. All rights reserved.
 // Use of this source code is governed by a MIT style
 // license that can be found in the LICENSE file.
 

From 76a8ac817897c0a7d221fd8faa60ade3aec93ff9 Mon Sep 17 00:00:00 2001
From: hopehook <hopehook@qq.com>
Date: Wed, 1 Mar 2023 10:22:15 +0800
Subject: [PATCH 4/4] chore: remove build tag "+build !go1.20"

---
 internal/bytesconv/bytesconv_1.19.go | 1 -
 internal/bytesconv/bytesconv_1.20.go | 1 -
 2 files changed, 2 deletions(-)

diff --git a/internal/bytesconv/bytesconv_1.19.go b/internal/bytesconv/bytesconv_1.19.go
index 15b613c629..669c9c914e 100644
--- a/internal/bytesconv/bytesconv_1.19.go
+++ b/internal/bytesconv/bytesconv_1.19.go
@@ -3,7 +3,6 @@
 // license that can be found in the LICENSE file.
 
 //go:build !go1.20
-// +build !go1.20
 
 package bytesconv
 
diff --git a/internal/bytesconv/bytesconv_1.20.go b/internal/bytesconv/bytesconv_1.20.go
index f5001878d5..5b6040a6b3 100644
--- a/internal/bytesconv/bytesconv_1.20.go
+++ b/internal/bytesconv/bytesconv_1.20.go
@@ -3,7 +3,6 @@
 // license that can be found in the LICENSE file.
 
 //go:build go1.20
-// +build go1.20
 
 package bytesconv