Re: [Pyobjc-dev] Two difficulties with document-based app

[David E. <epp...@ic...>]

On 12/11/02 1:20 PM -0800 David Eppstein <epp...@ic...> wrote:
> It turns out that the "Before DECREF in normal" / "Release with dead
> python" messages are caused by the outlets on File's Owner.  If I don't
> set those outlets, the messages stop happening and my bus errors go away.
> Is this a bug in pyobjc or in my understanding of how to use it?  I can
> easily work around this by moving all the functionality from MyDocument
> to another object created within the nib, but it would be helpful to
> understand whether outlets to File's Owners are ok.

I spoke too early.  This seems to be difficult to work around.

The NSDocument class has an outlet, "window".  If I fail to connect this 
outlet from the nib's "File's Owner" object to the nib's window, new 
document windows come up unselected, and you have to click on them to 
activate them (obviously undesired behavior).  But if I connect this 
outlet, then closing a document window causes the log messages and bus 
error death.  For that matter, to implement file i/o, I am going to need 
outlets connecting the document object to the objects where the data 
lives...

I decided this was a serious enough bug for me to immediately go ahead with 
Bill Bum's suggestion that I try the cvs version instead of the 0.7 
package.  Unfortunately, while the log messages are gone, the bus error is 
still there...

Do you guys need a more formal bug report?  Should I try to work up a 
simpler test case or has my description been clear enough for you to 
reproduce it?

--
David Eppstein       UC Irvine Dept. of Information & Computer Science
epp...@ic... http://www.ics.uci.edu/~eppstein/