Linker Error with Template Function

[Kyle Ingraham]

On Tuesday, 13 September 2022 at 08:43:45 UTC, Nick Treleaven 
wrote:
> On Tuesday, 13 September 2022 at 03:00:17 UTC, Kyle Ingraham 
> wrote:
>> Any suggestions for being able to call one function for any 
>> instance given but maintain flexible return types?
>
> Not sure if it helps, but you can define final methods in an 
> interface, which can call virtual interface methods:
> ```d
> interface PathConverter
> {
>     string getValue();
>
>     final T toD(T)()
>     {
>         import std.conv : to;
>
>         return to!T(getValue());
>     }
> }
> ```
> Not tested as AFK.

Thanks for the suggestion Nick. I solved this by storing structs 
as `void*` in a wrapper struct with information about their 
module and identifier saved elsewhere. I use that information to 
setup casts to the appropriate type then call `toD`. That way I 
can call the same method for functions that return different 
types and store disparate structs to the same wrapper struct. The 
wrapper struct gets used in function signatures.