[go-nuts] Best practice for Method Receivers

[st ov]

Is it idiomatic to mix-&-match pointer and value method receivers for a 
given type? 
or in *general*, if a single method requires a pointer receiver than *all 
methods* should take a pointer, regardless if a value receiver is 
appropriate?

For example, should Foo.SetVal also be a pointer receiver even though a 
value receiver would be acceptable?
https://play.golang.org/p/rd_6BLol8O

type Foo struct{
    ref []int
    val int
}

// would not set if method receiver is value receiver (foo Foo)
func (foo *Foo) SetRef(ref []int) {
    foo.ref = ref
}
func (foo Foo) SetVal(val int) {
    foo.val = val
}

func main() {
    foo := Foo{}
    foo.SetRef([]int{1,2,3})
    foo.SetVal(1)
    
    fmt.Printf("%v",foo) // {[1 2 3] 0}
}



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