Possible to determine who called a method?
Possible to determine who called a method?
- Subject: Possible to determine who called a method?
- From: Ken Tozier <email@hidden>
- Date: Thu, 1 Nov 2007 14:19:40 -0400
Hi
Say you have several objects "A," "B," "C," which contain references
to each other in an NSArray. Is it possible inside each object's
doSomethingAmazing method to determine which object called it? For
example: Say Object C receives a doSomethingAmazing invocation. It
should do its thing and then notify it's siblings to run their own
doSomethingAmazing methods but because each contains references to
all the others, it could enter an infinite loop. Here's an example:
- (void) doSomethingAmazing
{
/* do amazing stuff here */
// now tell objects in refList to run their own doSomethingAmazing
methods
NSEnumerator *enumerator = [refList objectEnumerator];
id ref;
while (ref = [enumerator nextObject])
{
if (ref != callingObject)
[ref doSomethingAmazing];
}
}
I know I could do this by adding another argument (say "caller") to
the doSomethingAmazing method but would like to avoid that if possible.
Anyone know if caller detection is possible?
Thanks for any help
Ken
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