Re: [Pyobjc-dev] In and out of NSData

[Ronald O. <ous...@ci...>]

On Saturday, Jan 11, 2003, at 04:56 Europe/Amsterdam, bb...@ma... 
wrote:

> On Friday, Jan 10, 2003, at 16:28 US/Eastern, Ronald Oussoren wrote:
>> I found where this problem originates: inside Cocoa :-(. I can 
>> probably get a simular crash using pure objective-C code (I've not 
>> tested this, hence the 'probably').
>
> Ugh...
>
> Maybe we need to create a list of selectors for which the return value 
> should be followed as 'self' and not the initial target of the method 
> call.
>
> This would also address situations like the following:
>
> - init
> {
>     if (self = [super init]) {
> 	    // local initialization
>     }
>
>     return self;
> }
That should not be a problem, unless [super init] invalidates the value 
of self (before the assignment).

I agree that we should add a generic mechanism for this. I'm busy added 
a flag-bit to selectors, the flag can be changed from Python code. This 
allows us to add Python-code to objc._convenience that correctly sets 
this flag.

I'll check-in this change when I'm done with this.

BTW. Shall I set this flag for all instance-methods whose selector 
starts with 'init'? This is simple enough to do and is probably exactly 
what's needed.

Ronald