Calling template member function?

[Andrey Zherikov]

On Tuesday, 19 April 2022 at 20:29:01 UTC, Steven Schveighoffer 
wrote:
> You can work around the dual context, if you are OK with 
> passing the second context explicitly.
>
> The easiest way is to move the member function to a UFCS 
> function. an example:
>
> ```d
> struct X
> {
>    int x;
>    void applyToX(alias fn)() {fn(x);}
> }
>
> void applyToX_alt(alias fn)(ref X xval) {
>    fn(xval.x);
> }
>
> void main()
> {
>    auto s = X(5);
>    int y = 6;
>    void fn(ref int x) { x += y; }
>    s.applyToX!fn; // error, dual context needed
>    s.applyToX_alt!fn; // fine, only single context needed
> }
> ```

I used struct to understand the problem. I don't actually have an 
object context to pass like in your example, the only context I 
have is template parameters.