[fpc-pascal] Restricted generic param types

[Sven Barth]

Am Fr., 9. Nov. 2018, 05:48 hat Ryan Joseph <ryan at thealchemistguild.com>
geschrieben:

> I’m getting a parse error here. It thinks the “U” is another type but in
> fact it’s another generic parameter and not related to “T” at all.  Is this
> a bug? I don’t think the way the parsing works the compiler actually can
> discern this condition.
>
> {$mode objfpc}
> {$modeswitch advancedrecords}
>
> program generic_constants_restricted;
>
> type
>         generic TList<T:tobject, U> = record
>         end;
>
> begin
> end.
>

You must use ";" in that case. All parameters separated by "," are of the
same "constraint type" while ";" separates these. Essentially like a
parameter declaration for a function.
(and yes, Delphi handles it like that as well)

Regards,
Sven

>
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