[fpc-devel] Class property and virtual getter

Hans-Peter Diettrich DrDiettrich1 at aol.com
Fri Feb 28 02:18:21 CET 2014


Sven Barth schrieb:
> Am 27.02.2014 15:35, schrieb Hans-Peter Diettrich:
>> Also "self" is no more known inside class methods in XE. In D7 it was 
>> the class type instead of the instance pointer. Thus a too restrictive 
>> compiler, geared towards compatibilitiy with *new* Delphi versions, 
>> may break existing code.
> Source please. This compiles and runs without problems in XE:
> 
> === source begin ===
> 
> type
>   TTest = class
>     class procedure Test; <---------
>   end;

When you add "static;", as required for class property getters/setters, 
the following won't compile:

> class procedure TTest.Test;
> begin
>   Writeln(Self.ClassName);
> end;

So the lack of "Self" seems to apply to "static;" methods, not to 
"class" methods. I'll ask in an EMBT group for a description of 
"static;", the OH seems to reflect the C++ meaning only, without 
mentioning the impact on OPL classes.

DoDi




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