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Re: null selector

Subject: Re: null selector
From: Nick Zitzmann <email@hidden>
Date: Wed, 14 Sep 2005 07:57:45 -0600
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On Sep 14, 2005, at 5:48 AM, Keith Alperin wrote:

- (void)awakeFromNib { SEL *handlerSelector = @selector(someMethod: otherArg:); NSMethodSignature *signature = [self methodSignatureForSelector: handlerSelector]; NSInvocation *handler = [NSInvocation invocationWithMethodSignature: signature]; [handler setTarget:self]; [handler retain]; int *someArg = 1; int *otherArg = 2; [handler setArgument:&someArg atIndex:2]; [handler setArgument:&otherArg atIndex:3]; [handler invoke]; }

1. The selector shouldn't be defined as a pointer. Neither should those two integers. 2. You forgot to call [handler setSelector:handlerSelector]. 3. Why are you retaining the invocation? The program leaks memory if you do that unless you counter it with a release, but in this case, retaining the invocation isn't necessary.

Nick Zitzmann
<http://www.chronosnet.com/>


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References:
	>null selector (From: Keith Alperin <email@hidden>)

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