[fpc-devel] (class) helper questions

[Sven Barth]

Am 15.03.2011 19:18, schrieb Alexander Klenin:
> On Tue, Mar 15, 2011 at 09:05, Paul Ishenin<webpirat at mail.ru>  wrote:
>> 15.03.2011 3:22, Jonas Maebe wrote:
>>>
>>> On 14 Mar 2011, at 21:07, Sven Barth wrote:
>>>
>>>> I have tought about this topic a bit more. On the one hand I still want a
>>>> cleaner syntax for this, but on the other hand I also understand that others
>>>> want to have the ability to use "objfpc" code in Delphi with as less ifdefs
>>>> as possible (or the other way round).
>>>
>>> It's not just that. It's also that it adds extra code to the compiler that
>>> must be maintained and that makes the parser more complicated.
>>
>> Also from time to time we find bugs in another proposed syntax and that
>> other syntax becomes removed.
>
> IMHO the syntax difference is so small it does not worth all the complications.
> However, as a compromise I can suggest inplementing it as:
>
> TypeIdentifier = [class|record] helper(ParentHelper) for ExtendedType
>
> i.e. make "class|record" keyword optional in objfpc mode, but do NOT
> allow it after "for". This way, objfpc syntax will be
> backwards-compatible with Delphi.
>

That idea isn't that bad... (of course Jonas' point of increasing the 
parser's complexity still holds ^^)


Regards,
Sven