Re: poseAs: problem

[Chris B . Vetter]

On Thu, 30 Aug 2001 16:20:25 -0600
Adam Fedor <fedor@doc.com> wrote:
> Chris B. Vetter wrote:
> That's an interesting set of problems. Are you doing poseAs: in gdnc or 
> in another program?
> Behaps you can debug gdnc. It's not obvious how to do this. Hopefully 
> you've compiled the base library with make debug=yes, then:
> defaults write NSGlobalDomain debug YES
> Then use gdb:
> gdb gdnc
>  > run
> Then do whatever you did to crash gdnc, then type a 'bt' in gdb.

All I do is 'openapp MyApp.app' ... 

No, I'm not meddling with gdnc (that is, directly). Basically, what
I do is (in AppController.m)

- (void) applicationDidFinishLaunching: (NSNotification *) aNotification
{
  if([[appPreferences objectForKey: @"UseMyClass"]
                   isEqualToString: @"YES"])
    [MyClass setup];

  return;
}

and in MyClass.m

+ (id) setup
{
  [self poseAs: [NSObject class]];

  return self;
}

I also tried [[self class] poseAs: [NSObject class]]; - same result.
The actual setup is done later, not in +setup. I do, however, replace
objc_error with my own error handler.

Interestingly, if I use [Object class] instead, everything works but
that's not what I had in mind originally, so is not of much use.

>From playing around and using NSLog() a lot, I could trace the problem
to the -poseAs: call.

First, I will get a timeout warning, then gdnc crashes - and, as I
said, after restarting gdnc by hand (starting any application, which
_should_ automatically re-start gdnc will NOT work) I get that "no
runtime info for MyClass" message until I remove Cache/:0.0

Maybe I should do the actual setup BEFORE calling -poseAs: ...

-- 
Chris