[MonoTouch] objc_msgSend does not work correctly

[Geoff Norton]

Duane,

   This crash means you sent bad data to objc_msgSend.  I'd need to  
see a bug to tell you exactly why, as well as the corresponding obj-c  
header.  Can you file a bug with a testcase?

Thanks

-g

On 29-Oct-09, at 2:56 PM, Duane Wandless wrote:

> Ha.  Yes I do.  But that library does not solve or address the  
> potential issue with objc_msgSend.  Which hopefully someone will let  
> me know if I'm going crazy... wait too late for that.
>
> On Thu, Oct 29, 2009 at 1:32 PM, Michael Bluestein <mike.bluestein at gmail.com 
> > wrote:
> have you seen this?
>
> http://github.com/city41/CocosNet
>
>
> On Oct 29, 2009, at 12:44 PM, Duane Wandless <duane at wandless.net>  
> wrote:
>
> I am binding to an existing objc-c library, cocos2d.  The objc-c  
> interfaces I'm binding to are:
>
> @interface CocosNode  {
> }
> -(id) onEnter;
> @end
>
> @interface Layer : CocosNode {
> }
> @end
>
> @interface ColorLayer : Layer {
> }
> @end
>
> So I have C# classes that match those:
> [Register("CocosNode")]
> public partial class CocosNode : NSObject
> [Register("Layer")]
> public partial class Layer : CocosNode
> [Register("ColorLayer")]
> public partial class ColorLayer : Layer
>
> Then I have:
> [Register("MyLayer")]
> public class MyLayer : ColorLayer
>
> MyLayer needs to respond to OnEnter when invoked from objc-c.  So I  
> have this which works as expected.
>
> [Export("onEnter")]
> public void OnEnter()
>
> I have added my logic to OnEnter() and now must call [super onEnter].
>
> If I try either of these I get into an infinite loop.  The  
> objc_msgSend call invokes my C# OnEnter() method:
>                MonoTouch.ObjCRuntime.Messaging.void_objc_msgSend  
> ( this.Handle, new Selector("onEnter").Handle);
>                 
> MonoTouch.ObjCRuntime.Messaging.void_objc_msgSendSuper  
> ( this.SuperHandle, new Selector("onEnter").Handle);
>
> Is there something I'm missing?  How should I invoke [super onEnter]?
>
> Thanks
> Duane
>
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