Object composition over inheritance in Golang: example

execution in command line

go build -o structura_inherit main. Go
./structura_inherit

main.go

// types/structs/embed/begin/main.go
package main

import "fmt"

type person struct {
	first string
	last  string
}

// fullName returns the full name of a person
func (p person) fullName() string {
	return p.first + " " + p.last
}

func(p *person) changeName(first, last string){
	p.first = first
	p.last = last
}



// define author and embed person
//
type author struct{
	person 
	penName string
}

// override fullName method for author
//
func(a author) fullname() string{
	return fmt.Sprintf("%s (%s)" , a.person.fullName(), a.penName)
} 

func main() {
	// initialize and print a person's full name
	p := person{
		first: "Toni",
		last:  "Morrison",
	}
	fmt.Println(p.fullName())
	p.changeName("Tamara" , "Chaverra")
	// initialize and print an author's full name
	fmt.Println(p.fullName())
	fmt.Println("----------------------------")
	//initialize  author
	a:=author{
		person:person{
			first:"James",
			last: "Bond",
		},
		penName:"MoneyPenny",
	}
	fmt.Println(a.fullName())
}