Two functions with different args. Taking address of the one

[Виталий Фадеев]

On Thursday, 11 March 2021 at 12:48:13 UTC, Paul Backus wrote:
> On Thursday, 11 March 2021 at 12:26:07 UTC, Виталий Фадеев 
> wrote:
>> Have:
>>     void process( ref MouseKeyEvent event )
>>     {
>>        ...
>>     }
>>
>>     void process( ref MouseMoveEvent event )
>>     {
>>        ...
>>     }
>>
>> Want:
>>     _processMouseKey  = &process; // <-- not works
>>     _processMouseMove = &process; // <-- not works
>>
>> What is correct way to get address of function with specific 
>> argument ?
>
> You can use __traits(getOverloads, process) plus some 
> metaprogramming to get the address of a specific overload. But 
> IMO the easiest way is to use lambdas:
>
>     __processMouseKey = (ref MouseKeyEvent event) { 
> process(event); };
>     __processMouseMove = (ref MouseMoveEvent event) { 
> process(event); };

This will generate lambda:
   __processMouseKey = (ref MouseKeyEvent event) { process(event); 
};

two calls:
   call labnda;
     call process;

What right way to call function directly with selecting one of 
two ?