Re: [xmlvm-dev] NSObject as superclass of CGImage/CGContext...

[Arno P. <ar...@pu...>]

a few comments:

- Objective-C has the notion of value types, Java does not. A
   value type in Objective-C can only be mapped to a class in
   Java (e.g., CGRect, CGImage, etc).
- We try to mimic the class hierarchy as much as possible, hence
   the existence of class NSObject that serves as the base class
   of all Objective-C classes.
- Value types are not classes and therefore do not have a base
   class. Since they are mapped to classes on the Java side,
   they still have java.lang.Object as the base class in Java.

I agree with Markus that value types should not be derived from NSObject 
on the Java side. That should be fixed.

Arno


On 9/1/11 5:28 AM, Panayotis Katsaloulis wrote:
>
> On 1 Σεπ 2011, at 1:48 μ.μ., Markus Heberling wrote:
>
>> Hi,
>>
>> Currently NSObject is the superclass of CGImage/CGContext/CG... and the like in the Java Compatibility Layer. In the "real world" this is not the case. CG... are no ObjectiveC objects altogether.
>
> You are right - this is my fault.
>
> First, in the Java context:
> CG* should not be NSObject derivative. It is still an Object derivative though.
>
> In native context:
> CG* *is* an Object since it is re-implemented here and is a wrapper for native CG* references.
>
>> Wouldn't it be better to remove the NSObject from the class hierarchy in java, too?
>
> In C you mean?
>
> NSObject in Java context *is* an Object, and as such, shouldn't NSObject and Object stay synonyms?
>
>
> ------------------------------------------------------------------------------
> Special Offer -- Download ArcSight Logger for FREE!
> Finally, a world-class log management solution at an even better
> price-free! And you'll get a free "Love Thy Logs" t-shirt when you
> download Logger. Secure your free ArcSight Logger TODAY!
> http://p.sf.net/sfu/arcsisghtdev2dev
> _______________________________________________
> Xmlvm-developers mailing list
> Xml...@li...
> https://lists.sourceforge.net/lists/listinfo/xmlvm-developers