Re: [Rubycocoa-talk] NSIndexSet does not respond to indexSetWithIndex:?

[Jonathan P. <jp...@dc...>]

On 6 Sep 2005, at 6:55, Steven Arnold wrote:

> In the irb session below I require/include needed libraries and  
> then attempt to use the NSIndexSet class.  This worked under PyObjC  
> but does not seem to work under RubyCocoa.  The docs suggest that  
> NSIndexSet should respond to indexSetWithIndex:.  Any ideas what's  
> going on?  Is this a bug?

> irb(main):039:0> NSIndexSet.alloc.indexSetWithIndex(3)
> OSX::OCMessageSendException: NSIndexSet#indexSetWithIndex: -  
> methodSignature is nil.

indexSetWithIndex is a method on the NSIndexSet class, not a method  
on NSIndexSet instances. You can tell the difference in the Xcode  
documentation because class methods have a leading '+' and instance  
methods a '-'.

So you either want:

     NSIndexSet.indexSetWithIndex(3)

or

     NSIndexSet.alloc.initWithIndex(3)

Hope that helps
Jonathan