[fpc-pascal] All methods vitrual ?

[Sven Barth]

Adriaan van Os via fpc-pascal <fpc-pascal at lists.freepascal.org> schrieb am
Mi., 11. Okt. 2023, 06:25:

> Sven Barth via fpc-pascal wrote:
> > Am 10.10.2023 um 11:18 schrieb Adriaan van Os via fpc-pascal:
> >>
> >>>
> >>> - In the released compiler, if you remove all visibility specifiers,
> >>> you can
> >>>   get a list by specifying {$M+} on your base object and then list all
> >>>   published methods using the RTTI.
> >>
> >> My understanding is that I have to explicitely specify public for
> >> class fields, otherwise the compiler will issue an error.
> >
> > What exactly do you mean here? Do you have an example?
>
> {$mode macpas}
> {$M+}
> program testrtti;
> type
>    T = object( TObject)
>      i: integer;
>      procedure A;
>    end;
> procedure T.A;
>    begin end;
> begin
> end.
>
> Free Pascal Compiler version 3.0.4 [2018/09/30] for x86_64
> Copyright (c) 1993-2017 by Florian Klaempfl and others
> Target OS: Darwin for x86_64
> Compiling testrtti.pas
> testrtti.pas(6,5) Error: Symbol cannot be published, can be only a class
> testrtti.pas(13) Fatal: There were 1 errors compiling module, stopping
>

Ah, yes, only classes and interfaces can be used for published fields. For
properties anything is allowed.

Regards,
Sven

>
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