rubycocoa-talk

[Rubycocoa-talk] Can't get Objective-C method signature in Leopard

[Rod S. <rsc...@xm...>]

I have the following Ruby code in my RubyCocoa app (in which I have  
mostly Objective-C with some Ruby).

class BackpackReminder
	def CSS_class
		date = NSDateToRubyDateTime(self.date)
		now = DateTime.now
		days_from_now = date.jd - now.jd
		if days_from_now <= 30 then
			"day#{days_from_now}"
		else
			"month#{self.months_from_now}"
		end
	end
end

BackpackReminder is an Objective-C class, so I am reopening this class  
and adding the CSS_Class method. This worked fine in Tiger. When I run  
the app I get the following:

11/3/07 12:55:52 PM PackRat[1109] PageGenerator#generateHTML:  
OSX::OCMessageSendException: Can't get Objective-C method signature  
for selector 'CSS:class' of receiver  
#<OSX::BackpackReminder_BackpackReminder_:0x265a5c  
class='BackpackReminder' id=0x6115b0>
11/3/07 12:55:52 PM PackRat[1109] Exception raised during posting of  
notification.  Ignored.  exception: 'Can't get Objective-C method  
signature for selector 'CSS:class' of receiver  
#<OSX::BackpackReminder_BackpackReminder_:0x265a5c  
class='BackpackReminder' id=0x6115b0>'  invoked observer method: '*** - 
[PackRatAppDelegate tableViewSelectionDidChange:]'  observer:  
0x6f3dd0  notification name: 'NSTableViewSelectionDidChangeNotification'

If I rename the method and remove the underscore and rename it  
something like CSSClass, I get the same message (with the method name  
changed of course). Has something changed in the Leopard version of  
RubyCocoa that prevents you from reopening classes and adding methods?

Rod Schmidt

Re: [Rubycocoa-talk] Can't get Objective-C method signature in Leopard

[Laurent S. <lau...@gm...>]

On Nov 3, 2007 1:18 PM, Rod Schmidt <rsc...@xm...> wrote:
> I have the following Ruby code in my RubyCocoa app (in which I have
> mostly Objective-C with some Ruby).
>
> class BackpackReminder
>         def CSS_class
>                 date = NSDateToRubyDateTime(self.date)
>                 now = DateTime.now
>                 days_from_now = date.jd - now.jd
>                 if days_from_now <= 30 then
>                         "day#{days_from_now}"
>                 else
>                         "month#{self.months_from_now}"
>                 end
>         end
> end
>
> BackpackReminder is an Objective-C class, so I am reopening this class
> and adding the CSS_Class method. This worked fine in Tiger. When I run
> the app I get the following:
>
> 11/3/07 12:55:52 PM PackRat[1109] PageGenerator#generateHTML:
> OSX::OCMessageSendException: Can't get Objective-C method signature
> for selector 'CSS:class' of receiver
> #<OSX::BackpackReminder_BackpackReminder_:0x265a5c
> class='BackpackReminder' id=0x6115b0>
> 11/3/07 12:55:52 PM PackRat[1109] Exception raised during posting of
> notification.  Ignored.  exception: 'Can't get Objective-C method
> signature for selector 'CSS:class' of receiver
> #<OSX::BackpackReminder_BackpackReminder_:0x265a5c
> class='BackpackReminder' id=0x6115b0>'  invoked observer method: '*** -
> [PackRatAppDelegate tableViewSelectionDidChange:]'  observer:
> 0x6f3dd0  notification name: 'NSTableViewSelectionDidChangeNotification'
>
> If I rename the method and remove the underscore and rename it
> something like CSSClass, I get the same message (with the method name
> changed of course). Has something changed in the Leopard version of
> RubyCocoa that prevents you from reopening classes and adding methods?
>

No, nothing changed in this logic. However, most of the code that adds
or overrides methods was ported to the ObjC 2.0 API, and maybe there
is a regression in that area.

I am nevertheless unable to reproduce this in a quick test.

A few questions:

1/ Is the OSX module required?

2/ Does it also happen if you explicitly import the BackpackReminder
class before doing the override? You can add ''OSX.ns_import :
BackpackReminder'' at the beginning of the file to try that.

3/ Does the CSS_class method exists in the ObjC side?

Thanks,
Laurent

Re: [Rubycocoa-talk] Can't get Objective-C method signature in Leopard

[Rod S. <rsc...@xm...>]

The OSX module is required.

I have imported the BackpackReminder class.

3) The CSS_class method does not exist on the ObjC side.

One other piece of information is that BackpackReminder descends from  
NSManagedObject. Could CoreData be messing things up? The inheritance  
hierarchy is:

NSManagedObject -> BackpackManagedObject -> BackpackReminder

Rod

On Nov 3, 2007, at 1:07 PM, Laurent Sansonetti wrote:

> On Nov 3, 2007 1:18 PM, Rod Schmidt <rsc...@xm...> wrote:
>> I have the following Ruby code in my RubyCocoa app (in which I have
>> mostly Objective-C with some Ruby).
>>
>> class BackpackReminder
>>        def CSS_class
>>                date = NSDateToRubyDateTime(self.date)
>>                now = DateTime.now
>>                days_from_now = date.jd - now.jd
>>                if days_from_now <= 30 then
>>                        "day#{days_from_now}"
>>                else
>>                        "month#{self.months_from_now}"
>>                end
>>        end
>> end
>>
>> BackpackReminder is an Objective-C class, so I am reopening this  
>> class
>> and adding the CSS_Class method. This worked fine in Tiger. When I  
>> run
>> the app I get the following:
>>
>> 11/3/07 12:55:52 PM PackRat[1109] PageGenerator#generateHTML:
>> OSX::OCMessageSendException: Can't get Objective-C method signature
>> for selector 'CSS:class' of receiver
>> #<OSX::BackpackReminder_BackpackReminder_:0x265a5c
>> class='BackpackReminder' id=0x6115b0>
>> 11/3/07 12:55:52 PM PackRat[1109] Exception raised during posting of
>> notification.  Ignored.  exception: 'Can't get Objective-C method
>> signature for selector 'CSS:class' of receiver
>> #<OSX::BackpackReminder_BackpackReminder_:0x265a5c
>> class='BackpackReminder' id=0x6115b0>'  invoked observer method:  
>> '*** -
>> [PackRatAppDelegate tableViewSelectionDidChange:]'  observer:
>> 0x6f3dd0  notification name:  
>> 'NSTableViewSelectionDidChangeNotification'
>>
>> If I rename the method and remove the underscore and rename it
>> something like CSSClass, I get the same message (with the method name
>> changed of course). Has something changed in the Leopard version of
>> RubyCocoa that prevents you from reopening classes and adding  
>> methods?
>>
>
> No, nothing changed in this logic. However, most of the code that adds
> or overrides methods was ported to the ObjC 2.0 API, and maybe there
> is a regression in that area.
>
> I am nevertheless unable to reproduce this in a quick test.
>
> A few questions:
>
> 1/ Is the OSX module required?
>
> 2/ Does it also happen if you explicitly import the BackpackReminder
> class before doing the override? You can add ''OSX.ns_import :
> BackpackReminder'' at the beginning of the file to try that.
>
> 3/ Does the CSS_class method exists in the ObjC side?
>
> Thanks,
> Laurent
>
> -------------------------------------------------------------------------
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Re: [Rubycocoa-talk] Can't get Objective-C method signature in Leopard

[Eloy D. <elo...@gm...>]

Hey Rod,

I used to have a problem similar to this one.
In my case I was unable to add/override instance methods, but was able  
to add/override class methods.
Anyways, I have tried my code again to see if the problem still  
persisted in the current trunk, which it doesn't.

Which version of RC are you using? The one that ships with Leopard?
If so, could you give the trunk a try?

Cheers,
Eloy

On 3 nov 2007, at 20:56, Rod Schmidt wrote:

> The OSX module is required.
>
> I have imported the BackpackReminder class.
>
> 3) The CSS_class method does not exist on the ObjC side.
>
> One other piece of information is that BackpackReminder descends from
> NSManagedObject. Could CoreData be messing things up? The inheritance
> hierarchy is:
>
> NSManagedObject -> BackpackManagedObject -> BackpackReminder
>
> Rod
>
> On Nov 3, 2007, at 1:07 PM, Laurent Sansonetti wrote:
>
>> On Nov 3, 2007 1:18 PM, Rod Schmidt <rsc...@xm...> wrote:
>>> I have the following Ruby code in my RubyCocoa app (in which I have
>>> mostly Objective-C with some Ruby).
>>>
>>> class BackpackReminder
>>>       def CSS_class
>>>               date = NSDateToRubyDateTime(self.date)
>>>               now = DateTime.now
>>>               days_from_now = date.jd - now.jd
>>>               if days_from_now <= 30 then
>>>                       "day#{days_from_now}"
>>>               else
>>>                       "month#{self.months_from_now}"
>>>               end
>>>       end
>>> end
>>>
>>> BackpackReminder is an Objective-C class, so I am reopening this
>>> class
>>> and adding the CSS_Class method. This worked fine in Tiger. When I
>>> run
>>> the app I get the following:
>>>
>>> 11/3/07 12:55:52 PM PackRat[1109] PageGenerator#generateHTML:
>>> OSX::OCMessageSendException: Can't get Objective-C method signature
>>> for selector 'CSS:class' of receiver
>>> #<OSX::BackpackReminder_BackpackReminder_:0x265a5c
>>> class='BackpackReminder' id=0x6115b0>
>>> 11/3/07 12:55:52 PM PackRat[1109] Exception raised during posting of
>>> notification.  Ignored.  exception: 'Can't get Objective-C method
>>> signature for selector 'CSS:class' of receiver
>>> #<OSX::BackpackReminder_BackpackReminder_:0x265a5c
>>> class='BackpackReminder' id=0x6115b0>'  invoked observer method:
>>> '*** -
>>> [PackRatAppDelegate tableViewSelectionDidChange:]'  observer:
>>> 0x6f3dd0  notification name:
>>> 'NSTableViewSelectionDidChangeNotification'
>>>
>>> If I rename the method and remove the underscore and rename it
>>> something like CSSClass, I get the same message (with the method  
>>> name
>>> changed of course). Has something changed in the Leopard version of
>>> RubyCocoa that prevents you from reopening classes and adding
>>> methods?
>>>
>>
>> No, nothing changed in this logic. However, most of the code that  
>> adds
>> or overrides methods was ported to the ObjC 2.0 API, and maybe there
>> is a regression in that area.
>>
>> I am nevertheless unable to reproduce this in a quick test.
>>
>> A few questions:
>>
>> 1/ Is the OSX module required?
>>
>> 2/ Does it also happen if you explicitly import the BackpackReminder
>> class before doing the override? You can add ''OSX.ns_import :
>> BackpackReminder'' at the beginning of the file to try that.
>>
>> 3/ Does the CSS_class method exists in the ObjC side?
>>
>> Thanks,
>> Laurent
>>
>> -------------------------------------------------------------------------
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>> Still grepping through log files to find problems?  Stop.
>> Now Search log events and configuration files using AJAX and a
>> browser.
>> Download your FREE copy of Splunk now >> http://get.splunk.com/
>> _______________________________________________
>> Rubycocoa-talk mailing list
>> Rub...@li...
>> https://lists.sourceforge.net/lists/listinfo/rubycocoa-talk
>
>
> -------------------------------------------------------------------------
> This SF.net email is sponsored by: Splunk Inc.
> Still grepping through log files to find problems?  Stop.
> Now Search log events and configuration files using AJAX and a  
> browser.
> Download your FREE copy of Splunk now >> http://get.splunk.com/
> _______________________________________________
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Re: [Rubycocoa-talk] Can't get Objective-C method signature in Leopard

[Rod S. <rsc...@xm...>]

I am using the one that ships with Leopard.

Is it possible to install the trunk and keep things separate? I don't  
want to mess up my Leopard install.

Also, I had to release to fix these bugs so I moved the methods back  
into Objective-C.

Rod

On Nov 4, 2007, at 7:03 AM, Eloy Duran wrote:

> Hey Rod,
>
> I used to have a problem similar to this one.
> In my case I was unable to add/override instance methods, but was able
> to add/override class methods.
> Anyways, I have tried my code again to see if the problem still
> persisted in the current trunk, which it doesn't.
>
> Which version of RC are you using? The one that ships with Leopard?
> If so, could you give the trunk a try?
>
> Cheers,
> Eloy
>
> On 3 nov 2007, at 20:56, Rod Schmidt wrote:
>
>> The OSX module is required.
>>
>> I have imported the BackpackReminder class.
>>
>> 3) The CSS_class method does not exist on the ObjC side.
>>
>> One other piece of information is that BackpackReminder descends from
>> NSManagedObject. Could CoreData be messing things up? The inheritance
>> hierarchy is:
>>
>> NSManagedObject -> BackpackManagedObject -> BackpackReminder
>>
>> Rod
>>
>> On Nov 3, 2007, at 1:07 PM, Laurent Sansonetti wrote:
>>
>>> On Nov 3, 2007 1:18 PM, Rod Schmidt <rsc...@xm...> wrote:
>>>> I have the following Ruby code in my RubyCocoa app (in which I have
>>>> mostly Objective-C with some Ruby).
>>>>
>>>> class BackpackReminder
>>>>      def CSS_class
>>>>              date = NSDateToRubyDateTime(self.date)
>>>>              now = DateTime.now
>>>>              days_from_now = date.jd - now.jd
>>>>              if days_from_now <= 30 then
>>>>                      "day#{days_from_now}"
>>>>              else
>>>>                      "month#{self.months_from_now}"
>>>>              end
>>>>      end
>>>> end
>>>>
>>>> BackpackReminder is an Objective-C class, so I am reopening this
>>>> class
>>>> and adding the CSS_Class method. This worked fine in Tiger. When I
>>>> run
>>>> the app I get the following:
>>>>
>>>> 11/3/07 12:55:52 PM PackRat[1109] PageGenerator#generateHTML:
>>>> OSX::OCMessageSendException: Can't get Objective-C method signature
>>>> for selector 'CSS:class' of receiver
>>>> #<OSX::BackpackReminder_BackpackReminder_:0x265a5c
>>>> class='BackpackReminder' id=0x6115b0>
>>>> 11/3/07 12:55:52 PM PackRat[1109] Exception raised during posting  
>>>> of
>>>> notification.  Ignored.  exception: 'Can't get Objective-C method
>>>> signature for selector 'CSS:class' of receiver
>>>> #<OSX::BackpackReminder_BackpackReminder_:0x265a5c
>>>> class='BackpackReminder' id=0x6115b0>'  invoked observer method:
>>>> '*** -
>>>> [PackRatAppDelegate tableViewSelectionDidChange:]'  observer:
>>>> 0x6f3dd0  notification name:
>>>> 'NSTableViewSelectionDidChangeNotification'
>>>>
>>>> If I rename the method and remove the underscore and rename it
>>>> something like CSSClass, I get the same message (with the method
>>>> name
>>>> changed of course). Has something changed in the Leopard version of
>>>> RubyCocoa that prevents you from reopening classes and adding
>>>> methods?
>>>>
>>>
>>> No, nothing changed in this logic. However, most of the code that
>>> adds
>>> or overrides methods was ported to the ObjC 2.0 API, and maybe there
>>> is a regression in that area.
>>>
>>> I am nevertheless unable to reproduce this in a quick test.
>>>
>>> A few questions:
>>>
>>> 1/ Is the OSX module required?
>>>
>>> 2/ Does it also happen if you explicitly import the BackpackReminder
>>> class before doing the override? You can add ''OSX.ns_import :
>>> BackpackReminder'' at the beginning of the file to try that.
>>>
>>> 3/ Does the CSS_class method exists in the ObjC side?
>>>
>>> Thanks,
>>> Laurent
>>>
>>> -------------------------------------------------------------------------
>>> This SF.net email is sponsored by: Splunk Inc.
>>> Still grepping through log files to find problems?  Stop.
>>> Now Search log events and configuration files using AJAX and a
>>> browser.
>>> Download your FREE copy of Splunk now >> http://get.splunk.com/
>>> _______________________________________________
>>> Rubycocoa-talk mailing list
>>> Rub...@li...
>>> https://lists.sourceforge.net/lists/listinfo/rubycocoa-talk
>>
>>
>> -------------------------------------------------------------------------
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>> Still grepping through log files to find problems?  Stop.
>> Now Search log events and configuration files using AJAX and a
>> browser.
>> Download your FREE copy of Splunk now >> http://get.splunk.com/
>> _______________________________________________
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>> https://lists.sourceforge.net/lists/listinfo/rubycocoa-talk
>
>
> -------------------------------------------------------------------------
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> Still grepping through log files to find problems?  Stop.
> Now Search log events and configuration files using AJAX and a  
> browser.
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