Pass method argument to function

Question

I\'m curious if this is possible in Go. I have a type with multiple methods. Is it possible to have a function which takes a method argument and then call it for the type?

Answer 1

You could also use the “method values” option listed by @icza with different receivers.

package main

import "fmt"

type Foo int
type Goo int

func (f Foo) A() { fmt.Println("A") }
func (f Foo) B() { fmt.Println("B") }
func (g Goo) A() { fmt.Println("A") }

func main() {
    //Method values with receiver f
    var f Foo
    bar2 := func(m func()) { m() }
    bar2(f.A) //A
    bar2(f.B) //B
    //Method values with receivers f and g
    var g Goo
    bar2(f.A) //A
    bar2(g.A) //A
}