Go Embedded Structs에서 사용자 정의 마샬링을 유지하는 방법은 무엇입니까?

type Person struct {
    Name string `json:"name"`
}

type Employee struct {
    *Person
    JobRole string `json:"jobRole"`
}

p := Person{"Bob"}
e := Employee{&p, "Sales"}
output, _ := json.Marshal(e)
fmt.Printf("%s\n", string(output))
// Output: {"name":"Bob","jobRole":"Sales"}

func (p *Person) MarshalJSON() ([]byte, error) {
    return json.Marshal(struct{ Name string `json:"name"` }{Name: strings.ToUpper(p.Name)})
}

output, _ := json.Marshal(e)
fmt.Printf("%s\n", string(output))
// Output: {"name":"BOB"}

// Note: not on Person
func (e *Employee) MarshalJSON() ([]byte, error) {
    inner, err := json.MarshalIndent((*e.Person).(*Person), "", "    ")
    if err != nil {
        return nil, err
    }

    b := []byte(strings.Replace(string(inner), "}", "}", -1))
    b = append(b, []byte(`,"jobRole":"`+e.JobRole+`"}`)...)

    return b, nil
}

func (e *Employee) MarshalJSON() ([]byte, error) {
    v := reflect.ValueOf(e).Elem()
    vf := v.FieldByName("Person")
    tmp, err := json.MarshalIndent(vf.Interface(), "", "    ")
    if err != nil {
        return nil, err
    }

    return []byte(strings.Replace(string(tmp), "}", `,"jobRole":"`+e.JobRole+`"}`, -1)), nil
}