Re: [PATCH] Fix some Objective-C failures on *-*-darwin* (next runtime)

[Ziemowit Laski <zlaski at apple dot com>]

Actually, I have been informed by the runtime folks here at Apple (who 
are separate
from the compiler team :-) ) that the correct way to fix these test 
cases (which I
haven't yet committed to objc-improvements-branch, but stay tuned) is 
simply to add

#ifdef __NEXT_RUNTIME__
+ initialize { return self; }
#endif

to the @implementation of the root class.  If the root class does not 
have a 'initialize',
the NeXT runtime will then attempt to invoke 'forward', which led to 
the error messages
you guys were seeing.

--Zem


On Thursday, Jul 17, 2003, at 07:13 US/Pacific, Nicola Pero wrote:

> > > Hi Andrew,
> > >
> > > what about telling us a bit more why this patch is required ?
> > >
> > > Having some root classes in the testsuite is good, as defining a new
> > > root
> > > class is one of the Objective-C features we want to test after all.
> > > It's
> > > not clear why you want everything to inherit from Object.  As far as 
> > > I
> > > know, if defining a new root class fails, that's a bug to fix - you
> > > shouldn't be modifying the testcase, but fixing the bug in the
> > > compiler!
> > >
> > > I don't have the Apple Objective-C runtime (which is not free 
> > > software
> > > btw) so I don't even know what problems you are trying to solve.  
> > > Could
> > > you let us know what the errors are ?
> >
> > The runtime error is "Test does not respond to forward::" so the "bug"
> > is that the
> > Next runtime requires forward:: to be a message for every base class.
> > Having the classes
> > inherit from Object makes the classes have the forward:: message which
> > fixes the error.
>
> Thanks.  That's useful.
>
> I think the proper fix for the testcase then is to add forward::, that 
> is,
> adding to the class definitions something like the following
>
> #ifdef __NEXT_RUNTIME__
> - (retval_t) forward: (SEL)aSel : (arglist_t)argFrame
> {
>   return nil;
> }
> #endif
>
> That would be Ok for me.
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Ziemowit Laski                 1 Infinite Loop, MS 301-2K
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