Debug help - opDispatch - unknown member function

[Steven Schveighoffer]

On Tuesday, 9 September 2025 at 20:08:06 UTC, monkyyy wrote:
> On Tuesday, 9 September 2025 at 19:17:11 UTC, Steven 
> Schveighoffer wrote:
>> 
>> In short `opDispatch` only is valid if it compiles. If it 
>> doesn't compile, it's as if it doesn't exist.
>
> Yours still thinking declaratively, that cant be true. The best 
> description of its behavior is that it discards errors.
>
> ```d
> import std;
> enum counter=cast(immutable(void)*)[0].ptr;
> auto getcount()=>(*(cast(int*)counter));
> auto count()=>(*(cast(int*)counter))++;
>
> struct foo{
>     void opDispatch(string s)(){
>         enum _=count();
>         static assert(0);
>     }
> }
> void bar(foo){}
> void foobar(foo){}
> unittest{
>     foo().bar;
>     foo().foobar;
>     getcount.writeln;//2
> }
> ```

This calls the UFCS versions, because the `opDispatch` version 
does not compile.

The other thing is just a bug.

-Steve