func (rw MustReadWriter) ReadObjectData(r io.Reader) (res *mct.ObjectData) {
if rw.Err != nil {
return
}
t := new(mct.ObjectData)
n, err := t.ReadFrom(r)
if err != nil {
rw.Err = fmt.Errorf("ReadObjectData: %s", err)
return
}
rw.N += n
return t
}
