> On Nov 20, 2022, at 4:26 AM, Sven Barth via fpc-pascal > <fpc-pascal@lists.freepascal.org> wrote: > > // this kind of constraint that uses T does not work yet > generic TList<T; Comparer: specialize TComparer<T>> = class > procedure Sort; > end;
Does this mean the generic param “Comparer” has a constraint which is "specialize TComparer<T>”? I’ve not ever considered this before but I think it solvers the problem where I suggested you could use something like traits. What is the challenge involved in implemented that so that it hasn’t been done yet? Just curious. :) And related since it comes to mind now, what is the reason generics inside of generics (like a generic method inside a generic class) are not supported and what challenges are involved? Seems like generics are maybe lacking some ability of recursion or something… Regards, Ryan Joseph _______________________________________________ fpc-pascal maillist - fpc-pascal@lists.freepascal.org https://lists.freepascal.org/cgi-bin/mailman/listinfo/fpc-pascal
