static function and access frame

[Steven Schveighoffer]

On 1/23/18 5:33 PM, Ali Çehreli wrote:
> On 01/23/2018 01:51 PM, Alex wrote:
>  > Ok, I'm quite sure, I overlooked something.
>  >
>  > First version, working
>  >
>  > [code]
>  > void main()
>  > {
>  >      auto s = S();
>  >      auto t = T!s();
>  >      t.fun;
>  > }
>  > struct S { void fun(){} }
>  > struct T(alias s){ auto fun() { s.fun; } }
>  > [/code]
>  >
>  > Now, the fun method of struct T has to become static and the problems
>  > begin:
>  > Error: static function app.main.T!(s).T.fun cannot access frame of
>  > function D main
> 
> Good news: Works at least with 2.078 as it should:
> 
> void main()
> {
>      auto s = S();
>      auto t = T!s();
>      t.fun;
> }
> struct S { static void fun(){} }
> struct T(alias s){ auto fun() { s.fun; } }
> 
> Ali
> 

No:

void main()
{
     auto s = S();
     auto t = T!s();
     t.fun;
}
struct S { void fun(){} }
struct T(alias s){ static fun() { s.fun; } }

Fails in 2.078.

I don't know the reason. You would think that accessing s would be 
relative to T.fun's stack frame, and have nothing to do with an instance 
of T.

I would file a bug, and see what the compiler devs say.

-Steve