[fpc-pascal] class inheritance and type incompatibility

[Sven Barth]

On 26.09.2013 16:42, Xiangrong Fang wrote:
>     What should work is the following (now with generics again):
>
>     === code begin ===
>
>     type
>        TTree<T> = class
>        private type
>          TSelfClass = class of TTree;
>        public
>          function Clone: TTree;
>        end;
>
>     function TTree.Clone: TTree;
>     begin
>        Result := TSelfClass(Self.ClassType).__Create(Data, FParent);
>        (* ... *)
>     end;
>
> ​After change to this code in Clone(), I got this error:
>
> ​
> ​tree.pas(66,60) Error: Incompatible type for arg no. 2: Got
> "TIntTree.TTree$LongInt", expected "TTree"

Seems like a bug in 2.6.x. It's compiling in 2.7.1.

Regards,
Sven