D/Objective-C 64bit

[Jacob Carlborg via Digitalmars-d-announce]

On 2014-12-29 22:39, Christian Schneider wrote:

> I just report another finding here. It's about properties and NSStrings.
> So far, it was possible to set the strings of an alert like this (source
> copied from the Chocolat example):
>
> auto alert = new NSAlert ;
> alert.messageText = "Want Chocolate?" ;
> alert.informativeText = "Chocolate is sweet." ;
>
> This now needs to be written like this:
>
> auto alert = new NSAlert ;
> alert.setMessageText("Want Chocolate?") ;
> alert.setInformativeText("Chocolate is sweet.") ;
>
> In the NSAlert class, the respective code is:
>
> extern (Objective-C)
> class NSAlert : NSObject {
>    @property {
>      NSString messageText() ;
>      void setMessageText(NSString text) @selector("setMessageText:")  ;
>
>     NSString informativeText() ;
>     void setInformativeText(NSString text)
> @selector("setInformativeText:")  ;
>    }
> }
>
> Of course, the property read/write access style is again just a
> convenience, but for somebody coming from Objective-C, it is "natural"
> to do it either way.

It might be some issue with properties. I'll have to look into that as 
well. D/Objective-C has some special treatment for properties. As a 
workaround you do one of the following alternatives:

* Declare the method as "messageText" instead of "setMessageText"
* Add a alias for "setMessageText" to "messageText"

* Add a method, "messageText", that forwards to "setMessageText". Any D 
method that takes one argument can be called like a setter

* Add an overload for "messageText" to take an argument as well

You might need to drop @property for some of these alternatives

-- 
/Jacob Carlborg