Function encodeByteSlice

encoding/json/value.go:119–149

Based on encoding/json encodeByteSlice from the Go Standard Library https://golang.org/src/encoding/json/encode.go

(w *bytes.Buffer, scratch []byte, v []byte)

// Based on encoding/json encodeByteSlice from the Go Standard Library
// https://golang.org/src/encoding/json/encode.go
func encodeByteSlice(w *bytes.Buffer, scratch []byte, v []byte) {
	if v == nil {
		w.WriteString(null)
		return
	}

	w.WriteRune(quote)

	encodedLen := base64.StdEncoding.EncodedLen(len(v))
	if encodedLen <= len(scratch) {
		// If the encoded bytes fit in e.scratch, avoid an extra
		// allocation and use the cheaper Encoding.Encode.
		dst := scratch[:encodedLen]
		base64.StdEncoding.Encode(dst, v)
		w.Write(dst)
	} else if encodedLen <= 1024 {
		// The encoded bytes are short enough to allocate for, and
		// Encoding.Encode is still cheaper.
		dst := make([]byte, encodedLen)
		base64.StdEncoding.Encode(dst, v)
		w.Write(dst)
	} else {
		// The encoded bytes are too long to cheaply allocate, and
		// Encoding.Encode is no longer noticeably cheaper.
		enc := base64.NewEncoder(base64.StdEncoding, w)
		enc.Write(v)
		enc.Close()
	}

	w.WriteRune(quote)
}