[fpc-devel] Component FTag and Tag should be int64

Michael Van Canneyt michael at freepascal.org
Tue Nov 23 20:20:11 CET 2010

On Tue, 23 Nov 2010, Sergei Gorelkin wrote:

> Andrew Brunner пишет:
>> Ok. 
>> First off tag should be revised to match Delphi. 
>> Second.  I need data property on Tcomponent 
>> I propose having an additional directive for this mechanism kind of like 
>> the option for using large strings.  Components have data property.  This 
>> way I can just get it into the Laz dialog.
>> How about that?
> If we start adding new properties, directives, keywords etc on every such 
> request, the end result will deserve only placing into trash.
> TComponent already allows
> a) Using Tag property to store indices into array or other container of data 
> of any type;
> b) Using Components property to store any number of child components, which 
> are owned, named, can notify and be notified of insertion and deletion.
> Regarding the Tag type, the fact we're tied up with that "Delphi 
> compatibility" is quite unfortunate. I wonder how they are going to maintain 
> compatibility between 32 and 64 bit versions.

They do the same as we:

They introduced something like PtrInt (using of course a different name)
and made tag equal to this type.

Instead of biting the bullet and telling people to code properly.

But like most companies, they are a bit of a prostitute in this regard.


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