A demo of how embedding in Go does not result in polymorphic behaviour, unlike inheritance. More here: http://tech.t9i.in/2014/01/inheritance-semantics-in-go/

no_polymorphism.go

package main

import (
	"fmt"
)

type Foo struct {
}

type Bar struct {
	Foo
}

func (foo Foo) a() {
	fmt.Println("Foo a() calling b()")
	foo.b()
}

func (foo Foo) b() {
	fmt.Println("Foo b() called")
}

func (bar Bar) b() {
	fmt.Println("Bar b() called")
}

func main() {
	bar := Bar{}
	
	// Even though bar has an override for b(), it won't be called
	bar.a()
}