Re: Objective-C and it's future

FROM : Kenny Leung
DATE : Sat Jul 08 03:56:45 2006

On Jul 7, 2006, at 6:40 PM, Thomas Davie wrote:

>
> Very often.  90% of the time I remove something from a container 
> class I get the compiler warning me that it might not respond to 
> the method I'm asking it to respond to, and have to make a cast, 
> that I know is type safe, but the compiler does not.  I would much 
> rather have the compiler do this inference for me, because firstly, 
> it stops me from making mistakes, and secondly it saves me a lot of 
> code making casts that do nothing.


You get these warnings 90% of the time when writing Objective-C? You 
should get no warnings when you have code like the following, 
provided you have included SuctionBall.h.

- (void)loopOverBalls:(NSArray *)balls
{
int i;
SuctionBall *suctionBall;

for ( i = [balls count] ; i >= 0  ; i-- ) {
    suctionBall = [balls objectAtIndex:i];
    [suctionBall bounce];
    [suctionBall stick];
}
}

-Kenny