Hi,

This is not an issue but since I am not sure where to ask this question, I though this would be most ideal place given that the advice is given in this repo. Would be much appreciated if answered/made clearer.

Thanks

https://github.com/golang/go/wiki/CodeReviewComments#receiver-type

Receiver Type
...
If the receiver is a struct that contains a sync.Mutex or similar synchronizing field, the receiver must be a pointer to avoid copying.

If I a have a struct which contains another struct and that one contains an another ..... (you get what I mean, sub field after sub field), should my struct be a pointer? Or, are we talking about my struct's immediate field, not the sub fields and all that?

Some random example.

type Myself struct {
  name string
  address Address
  account *Account
}

type Address struct {
  line string
  city string
  residents []*Resident
}

type Account struct {
  no int
  balance string
  mux sync.Mutex
}

// Like this?
func (m Myself) xyz() {
  // m will never be mutated nor its fields
}

// Like this?
func (m *Myself) xyz() {
  // m will never be mutated nor its fields
}