test.go

package main

import "fmt"

type Person struct {
        Name string
}
 
func (p *Person) Intro() string {
        return p.Name
}

func (p *Person) Hello() string {
	return "hello from " + p.Name
}
 
type Woman struct {
        Person
}
 
func (w *Woman) Intro() string {
        return "Mrs. " + w.Person.Intro()
}

func main() {
	w := new(Woman)
        w.Name = "Diana"        
	fmt.Println(w.Intro())
	fmt.Println(w.Hello())
	fmt.Println(w.Person.Hello())

	// this doesn't work
	// w2 := &Woman{Name: "Lucy"}
	// fmt.Println(w2.Hello())

	// this works
	p := &Person{Name: "Jay"} // <- struct literal
	fmt.Println(p.Hello())

}

//  ~/projects/goTest $ go run hello.go 
// Mrs. Diana
// hello from Diana
// hello from Diana