[fpc-devel] "class of TFoo".Create

[J. Gareth Moreton]

I would personally call that unusual at best.  Logically I would 
consider it a type mismatch or a syntax error of some kind, since TFoo 
is a class and TFooClass is a metaclass.  Also, if I saw such code in a 
project, I would think someone made a mistake that didn't get caught, 
since TFoo.Create would make much more sense.

I'd wonder if, under OBJFPC mode, such a construct should raise a 
compiler error because I honestly can't see a situation where it would 
be correct and intentional over using the associated class in its place.

Kit

On 06/07/2025 13:38, Bart via fpc-devel wrote:
> On Sun, Jul 6, 2025 at 1:57 PM Martin Frb via fpc-devel
> <fpc-devel at lists.freepascal.org> wrote:
>
>
>> program Project1;
>> {$mode objfpc}
>> type TFoo = class end;
>>        TFooClass = class of TFoo;
>> var f: TFoo;
>>       fc: TFooClass;
>> begin
>>     fc := TFoo;
>>     f  := fc.Create;
>>     f  := TFooClass.Create;  // works
>> end.
> Delphi (7) happily compiles that as well.
> And f is of type TFoo there as well.
>

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