gin/render/text.go
xyb c83a1cca0a
reduce allocs and improve the render WriteString (#2508)
Co-authored-by: yonbiaoxiao <yonbiaoxiao@tencent.com>
Co-authored-by: Bo-Yi Wu <appleboy.tw@gmail.com>
Co-authored-by: thinkerou <thinkerou@gmail.com>
2020-10-16 18:32:33 +08:00

42 lines
1.1 KiB
Go

// Copyright 2014 Manu Martinez-Almeida. All rights reserved.
// Use of this source code is governed by a MIT style
// license that can be found in the LICENSE file.
package render
import (
"fmt"
"net/http"
"github.com/gin-gonic/gin/internal/bytesconv"
)
// String contains the given interface object slice and its format.
type String struct {
Format string
Data []interface{}
}
var plainContentType = []string{"text/plain; charset=utf-8"}
// Render (String) writes data with custom ContentType.
func (r String) Render(w http.ResponseWriter) error {
return WriteString(w, r.Format, r.Data)
}
// WriteContentType (String) writes Plain ContentType.
func (r String) WriteContentType(w http.ResponseWriter) {
writeContentType(w, plainContentType)
}
// WriteString writes data according to its format and write custom ContentType.
func WriteString(w http.ResponseWriter, format string, data []interface{}) (err error) {
writeContentType(w, plainContentType)
if len(data) > 0 {
_, err = fmt.Fprintf(w, format, data...)
return
}
_, err = w.Write(bytesconv.StringToBytes(format))
return
}