[fpc-devel] generic forward declaration?

[Martin Frb]

On 30/07/2025 12:23, Mattias Gaertner via fpc-devel wrote:
>
>
> On 7/30/25 11:44, Martin Frb via fpc-devel wrote:
>> On 29/07/2025 23:39, Sven Barth via fpc-devel wrote:
>>>
>>> Please report a bug. Though this might end up not compiling 
>>> nevertheless due to the specialization chain going ad infinitum...
>>>
>> https://gitlab.com/freepascal.org/fpc/source/-/issues/41349
>>
>> It does not need to go ad infinitum.
>
> It depends on the compiler implementation.
>
> pas2js compiles it.
> OTOH pas2js currently creates 3 internal specializations for each TFoo 
> and TBar.

There should only be

TFoo<Byte, Boolean>
TFoo<Boolean, Byte>

If you got 3 then you got one of them twice. And if they are different 
types, then at some point you get issues with assigning them to the fields?