On Sunday, September 3, 2017 at 1:51:54 AM UTC-4, Jesse McNelis wrote:
>
> On Sat, Sep 2, 2017 at 12:50 AM, BeaT Adrian <adi...@gmail.com
> <javascript:>> wrote:
> > Hello, I ran into a strange scenario and I wanted to know if there is a
> > better solution for it
> >
> > type A struct{}
> >
> > func (a *A) private() {}
> > func (a *A) Public() {
> > a.private()
> > }
> >
> > type B struct {A}
> >
> > func (b *B) private() {}
> >
> > bi := B{}
> > b.Public() //calls the A.Private
> >
>
> Go doesn't do inheritance only composition with method forwarding.
> Trying to do it will make you sad.
>
> The general solution to sharing code between two types is to write a
> function that takes a common interface that both A and B implement.
>
> eg.
>
> type Privater interface {
> private()
> }
>
> func Public(p Privator){
> p.private()
> }
>
Yes, I call it Polymorphism By Interface in Go. Check out more at
https://medium.com/@gianbiondi/interfaces-in-go-59c3dc9c2d98
Also, if you were trying to define a "virtual function" that its behavior
can be overridden by its "sub-class", check out
https://github.com/suntong/lang/blob/master/lang/Go/src/oo/Polymorphism-AnimalVF3.go
or its previous two versions (AnimalVF1.go & AnimalVF2.go).
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