RE: NSString methods returns GSUnicodeString, why?

[Mondragon, Ian]

i don't know exactly how you're implementing this internally, and i don't
know if this is the root of *this* problem, but a 'new' method in
objective-c typically is implemented as a simple combination of 'alloc' and
'init'; therefore, you're 2nd init method would be redundant.

just my 2 cents.

- ian

> -----Original Message-----
> From: Laurent Julliard [SMTP:Laurent.Julliard@xrce.xerox.com]
> Sent: Monday, July 02, 2001 10:32 AM
> To:   discuss-gnustep@gnu.org
> Subject:      NSString methods returns GSUnicodeString, why?
> 
> All,
> 
> I'm in the process of writing a Ruby to GNUstep binding. And I have
> difficutlies to understand the following problem. A simple piece of Ruby
> code illustrates the problem (irb is the Ruby interactive shell):
> 
> irb> a = NSString.new    # create a new NSString object
> irb> a.initWithCString("GNUstep forever")
> irb> a.length
> 15
> 
> Everything seems to be working fine. But...
> 
> irb> a.cString
> Uncaught exception NSCharacterConversionException, reason: Can't get
> cString from Unicode string.
> 
> Right after the initWithCString method call I have put some logs showing
> that initWithCString actually returns a GSUnicodeString object instead
> of a NSString object as you would expect. It looks like GSUnicodeString
> is a subclass of GSString which in turn is a subclass of NSString. So
> why isn't the cString method call working?
> 
> Any idea is welcome.
> 
> Thanks
> 
> PS: Right now the approach we have taken on the Ruby-GNUstep binding is
> entirely dynamic. We don't use any declarative approach a la SWIG an i
> would like to keep it this way.
> 
> -- 
> Laurent JULLIARD - XR&T Technology and Alliances Office -  Open Source
> team
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