[pjmlp]

Even though I have bashed Go's lack of generics throughout its existence, this point no longer applies,

    package main

    import (
        "fmt"
    )

    func Id[T any] (a T) T{
        return a
    } 
        
        
    type Stack[T any] struct {
       items []T
    }  

    type Num interface {
        type int, int16, int32
    }

    func add3[T Num](a T, b T, c T) T {
       return a + b + c
    } 


    type LinkedList[T any] struct {
       value T
       next *LinkedList[T]
    }

    func (oldNode *LinkedList[T]) prepend(value T) *LinkedList[T] {
       return &LinkedList[T]{value, oldNode}
    }

    func tail[T any] (value T) *LinkedList[T] {
       return &LinkedList[T]{value, nil}
    }

    func traverse[T any](ll *LinkedList[T]) {
       if ll == nil {
         return
       }
       fmt.Println(ll.value)
       traverse(ll.next)
    }

    func main() {
       node := tail(5).prepend(6).prepend(7)
       traverse(node)
    }

https://go2goplay.golang.org/p/9cpHFGwuZmA