How is inheritance mechanism implemented in Go language and what is its implementation?

In the Go language, there is no classical inheritance like in object-oriented languages. Instead, composition and interfaces are used.

• Composition: Instead of inheriting structures, you can include one structure within another. This allows "embedding" behavior and data.

• Interfaces: Go uses interfaces to describe behavior. Any structure that implements the interface's methods is considered its implementation.

Example of composition:

package main

import "fmt"

type Animal struct {
    Name string
}

func (a Animal) Speak() {
    fmt.Println(a.Name, "says")
}

type Dog struct {
    Animal // embedding the Animal structure
}

func main() {
    d := Dog{Animal{Name: "Bobic"}}
    d.Speak() // calls the Animal method
}

Thus, Go encourages the use of composition and interfaces instead of classical inheritance.