I'm doing some due-diligence and wondering if there's any old topics about
extending interfaces to support field sets.
ie.
type WithID interface {
ID string
}
type X struct { ID string }
type Y struct { ID string }
func PrintID(item WithID) {
fmt.Println(item.ID)
}
In the above the PrintID function only accepts structs with a field named
`ID` - which X & Y satisfy. This is sort of like duck typing but with
fields.
I've
found https://groups.google.com/g/golang-nuts/c/18gH5TR_3ZE/m/9dyyT4veBgAJ
but I don't know the discussion the person was referencing and it seems
specific to generics.
thanks,
dave
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