What steps will reproduce the problem?

Compile and run attached code:

package main

import (
    "bytes"
    "encoding/gob"
    "fmt"
)

type Public struct {
    Name string
    S    Secret
}

type Secret struct{ a, b int }

func main() {
    buf :=  new(bytes.Buffer)
    enc := gob.NewEncoder(buf)
    x := Public{Name: "name", S: Secret{1, 2}}
    err := enc.Encode(x)
    fmt.Println(err)

    buf.Reset()
    enc = gob.NewEncoder(buf)
    err = enc.Encode(x)
    fmt.Println(err)

    var y Public
    dec := gob.NewDecoder(buf)
    err = dec.Decode(&y)
    fmt.Println(err)
    fmt.Printf("%q\n", y.Name)
}


What is the expected output? What do you see instead?

Expect either:

gob: type main.Secret has no exported fields
gob: type main.Secret has no exported fields
<some error>
""

or:

<nil>
<nil>
<nil>
"name"

Got:

gob: type main.Secret has no exported fields
<nil>
<nil>
""


Please use labels and text to provide additional information.

Attachments:

1. gob.go (486 bytes)