golang struct composition

main.go

package main

import (
	"fmt"
)

type A struct {
	Name string
	Age  string
}

func (a *A) SayMyName() {
	fmt.Println("my name:", a.Name)
}

type B struct {
	A
	Name string
}

func (b *B) NewB() {
	b.A = A{Name: "Arthur", Age: "19"}
	b.Name = "Silva"
}

func (b *B) SayMyName() {
	fmt.Println("my name:", b.Name)
}

func main() {
	b := B{}
	b.NewB()
	fmt.Printf("%+v\n", b)
	b.A.SayMyName()
	b.SayMyName()
	fmt.Printf("%+v\n", b.A)
}
// {A:{Name:Arthur Age:19} Name:Silva}
// my name: Arthur
// my name: Silva
// {Name:Arthur Age:19}