Use zero-copy approach to convert types between string and byte… (#2206)
* Use zero-copy approach to convert types between string and byte slice * Rename argument to a eligible one Benchmark: BenchmarkBytesConvBytesToStrRaw-4 21003800 70.9 ns/op 96 B/op 1 allocs/op BenchmarkBytesConvBytesToStr-4 1000000000 0.333 ns/op 0 B/op 0 allocs/op BenchmarkBytesConvStrToBytesRaw-4 18478059 59.3 ns/op 96 B/op 1 allocs/op BenchmarkBytesConvStrToBytes-4 1000000000 0.373 ns/op 0 B/op 0 allocs/op Co-authored-by: Bo-Yi Wu <appleboy.tw@gmail.com>
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@ -10,6 +10,7 @@ import (
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"html/template"
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"net/http"
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"github.com/gin-gonic/gin/internal/bytesconv"
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"github.com/gin-gonic/gin/internal/json"
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)
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@ -97,8 +98,9 @@ func (r SecureJSON) Render(w http.ResponseWriter) error {
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return err
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}
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// if the jsonBytes is array values
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if bytes.HasPrefix(jsonBytes, []byte("[")) && bytes.HasSuffix(jsonBytes, []byte("]")) {
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_, err = w.Write([]byte(r.Prefix))
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if bytes.HasPrefix(jsonBytes, bytesconv.StringToBytes("[")) && bytes.HasSuffix(jsonBytes,
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bytesconv.StringToBytes("]")) {
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_, err = w.Write(bytesconv.StringToBytes(r.Prefix))
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if err != nil {
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return err
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}
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@ -126,11 +128,11 @@ func (r JsonpJSON) Render(w http.ResponseWriter) (err error) {
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}
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callback := template.JSEscapeString(r.Callback)
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_, err = w.Write([]byte(callback))
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_, err = w.Write(bytesconv.StringToBytes(callback))
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if err != nil {
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return err
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}
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_, err = w.Write([]byte("("))
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_, err = w.Write(bytesconv.StringToBytes("("))
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if err != nil {
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return err
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}
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@ -138,7 +140,7 @@ func (r JsonpJSON) Render(w http.ResponseWriter) (err error) {
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if err != nil {
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return err
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}
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_, err = w.Write([]byte(");"))
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_, err = w.Write(bytesconv.StringToBytes(");"))
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if err != nil {
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return err
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}
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@ -160,7 +162,7 @@ func (r AsciiJSON) Render(w http.ResponseWriter) (err error) {
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}
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var buffer bytes.Buffer
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for _, r := range string(ret) {
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for _, r := range bytesconv.BytesToString(ret) {
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cvt := string(r)
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if r >= 128 {
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cvt = fmt.Sprintf("\\u%04x", int64(r))
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