Re: [Rubycocoa-talk] Importing Ruby Classes into Obj-C code

[Ferhat A. <fer...@ya...>]

Ruby methods indeed do not define return types but Obj-C does. I'm not sure but I guess  the problem is that you are sending an "unknown" message to dataSource and it treads it as obj-c id type. So you would see the same compiler error if you try.

id something;
NSSize originalSize = something;

You have to define it in an obj-c interface.

@interface KNTiledMap  (ImNotSureButMaybeYouHaveToDoItAsCategory)
- (NSSize)dimensions;
@end


Ferhat

----- Original Message ----
From: Knud Hinnerk Möller <knu...@de...>
To: rub...@li...
Sent: Monday, April 14, 2008 1:51:59 PM
Subject: Re: [Rubycocoa-talk] Importing Ruby Classes into Obj-C code


Am 14.04.2008 um 12:20 schrieb Ferhat Ayaz:

> are you sure that [dataSource dimensions]; returns an NSSize?

No, I can't be - Ruby methods don't define a return type. The error  
already happens at compile time, not at runtime.

Knud

>
>
> Ferhat
>
> ----- Original Message ----
> From: Knud Hinnerk Möller <knu...@de...>
> To: rub...@li...
> Sent: Monday, April 14, 2008 12:56:52 PM
> Subject: [Rubycocoa-talk] Importing Ruby Classes into Obj-C code
>
> Hi,
>
> please forgive me if this is a stupid question to ask, but is it
> possible to import a Ruby class definition into Obj-C? What I mean is
> this:
>
> I have a RubyCocoa class:
>
> class KNTiledMap < OSX::NSObject
>     attr_accessor :dimensions
>     ...
> end
>
> I have an Obj-C class in which I want to use the Ruby class:
>
> @interface KNTileView : NSView {
>     KNTiledMap *dataSource;
> }
>
> @implementation KNTileView
>     ...
>     NSSize originalSize = [dataSource dimensions];
>     ...
> @end
>
> This leads to a compile "error: invalid initializer".
>
> How can I make this work?
>
> Cheers,
> Knud
> -------------------------------------------------
> Knud Möller, MA
> +353 - 91 - 495086
> Smile Group: http://smile.deri.ie
> Digital Enterprise Research Institute
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>
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-------------------------------------------------
Knud Möller, MA
+353 - 91 - 495086
Smile Group: http://smile.deri.ie
Digital Enterprise Research Institute
   National University of Ireland, Galway
Institiúid Taighde na Fiontraíochta Digití
   Ollscoil na hÉireann, Gaillimh


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