How not to increment an NSDate, corrected!

gistfile1.m

/*
(Updated) Many people reached out on Twitter and directed me towards using NSDateComponents
          as the generally accepted method of incrementing a date. Thanks all!


We share a framework between MoneyWell 2.0 (Lion-only) and MoneyWell 1.x (10.5+) that needs 
to increment a date variable by 1 second.

Since addTimeInterval: is deprecated in 10.7 and I hate build warnings as much as everyone 
else I decided to get fancy with how I go about incrementing a date object. As it turns out 
I out-fancied myself and the end result of the method calls is that aDate is never incremented.

Is there another way to get an incremented date here that avoids deprecation warnings?
*/

NSDate *aDate = [NSDate date];
NSDateComponents *components = [[NSDateComponents alloc] init];
[components setSecond:1];
aDate = [[NSCalendar currentCalendar] dateByAddingComponents:components toDate:aDate options:0];
[components release], components = nil;

The problem is that you can’t use the performSelector:withObject: method when the parameter is not actually an object.