Mixin helper help

[Salih Dincer]

On Thursday, 12 January 2023 at 08:03:34 UTC, John Chapman wrote:
> Why does the commented code work but the mixin not? Thanks for 
> any pointers.

Why not directly use the mixin template for opDispatch()?

```d
mixin template helper() {
   void opDispatch(string name)() {
     import std.stdio;
     writeln(12);
   }
}

struct Foo {
   mixin helper;
   // ...
}

void main() {
   Foo.init.opDispatch!"bar"();
}
```

SDB at 79