[Vm-dev] Recursive not understood error encountered

[John M McIntosh]

Mariano, knowing that ProtoObject  does understand doesnotunderstand via is not enough. There are a dozen or two other methods needed 
in order for a debugger to come up, even to invoke an inspector on ProtoObject subclasses.

You should look at the Objective-C bridge I wrote  , the Objective-C proxy object  that is based on ProtoObject and contains the 
required methods to ensure a debugger will come up. It *does* override does not understand so it can transform the unknown 
message into a primitive call. 

On 2010-12-05, at 5:57 AM, Mariano Martinez Peck wrote:

> 
> 
> On Sun, Dec 5, 2010 at 8:53 AM, Colin Putney <colin at wiresong.com> wrote:
> 
> On Fri, Dec 3, 2010 at 12:52 PM, Mariano Martinez Peck
> <marianopeck at gmail.com> wrote:
> >
> > Hi. I am still playing with Objects as methods, and I am having yet another kind of crash :(
> > This time, the image crash with the message "Recursive not understood error encountered".
> > I am completly sure that I am not putting ANY proxy for any method of DNU, so I don't understand why I get this error.
> 
> Without understanding the details of what you're doing, let me offer
> this:
> 
> thanks Colin for the help.
>  
> try looking for objects that don't inherit from Object.
> 
> Ok, there are objects that doesn't inherit from Object, and even my proxies don't do that. But.....ProtoObject DOES understands the message #doesNotUnderstand:
>  
> Even if
> you aren't proxying #doesNotUnderstand:, you can get a recursive DNU
> if an object that doesn't understand #doesNotUnderstand:
> 
> there cannot be objects that don't understand #doesNotUnderstand:  since it is implemented in ProtoObject. 
>  
> gets
> *another* message it doesn't understand.
> 
> 
> Anyway, I will think if there can be a situation that happens what you said...maybe there is.
> 
> Thanks a lot !
> 
> mariano
>  
> Hope this helps.
> 
> Colin
> 

--
===========================================================================
John M. McIntosh <johnmci at smalltalkconsulting.com>   Twitter:  squeaker68882
Corporate Smalltalk Consulting Ltd.  http://www.smalltalkconsulting.com
===========================================================================




-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://lists.squeakfoundation.org/pipermail/vm-dev/attachments/20101205/47d88105/attachment.htm