blob: 7e77b5b0d8859702d0c0e1d926d96f4417710fcd [file] [log] [blame]
// +build ignore,OMIT
package main
import (
"encoding/binary"
"io"
"log"
"os"
)
type Gopher struct {
Name string
AgeYears int
}
type binWriter struct {
w io.Writer
size int64
err error
}
// Write writes a value to the provided writer in little endian form.
func (w *binWriter) Write(v interface{}) {
if w.err != nil {
return
}
if w.err = binary.Write(w.w, binary.LittleEndian, v); w.err == nil {
w.size += int64(binary.Size(v))
}
}
func (g *Gopher) WriteTo(w io.Writer) (int64, error) {
bw := &binWriter{w: w}
bw.Write(int32(len(g.Name)))
bw.Write([]byte(g.Name))
bw.Write(int64(g.AgeYears))
return bw.size, bw.err
}
func main() {
g := &Gopher{
Name: "Gophertiti",
AgeYears: 3382,
}
if _, err := g.WriteTo(os.Stdout); err != nil {
log.Printf("DumpBinary: %v\n", err)
}
}