Re: [go-nuts] At runtime, is there a way to tell the structure's symbol name, of which a bound method offered a satisfactory implementation of a function type?

[Ian Lance Taylor]

On Sun, Jun 9, 2019 at 9:48 AM Houzuo Guo <guohou...@gmail.com> wrote:
>
> Given a function type: type Fun func()
>
> And two structure methods that satisfy the function type:
>
> type Alpha struct {
> }
> func (a Alpha) funA() {
> }
>
> type Beta struct {
> }
> func (b Beta) funB() {
> }
>
> At runtime, is there a way to tell whether a non-nil `var f Fun` is assigned 
> to an arbitrary instance of structure Alpha, or Beta? Can reflection help in 
> this case?

I'm sorry, I don't understand your question.  funA and funB are
methods.  You can't assign to a method.  And the structs have no
fields, so you can't assign to that either.  So I'm not sure what you
mean.

That said, I suspect the answer to your real question is "no."

Ian

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