• Open Menu Close Menu
  • Apple
  • Shopping Bag
  • Apple
  • Mac
  • iPad
  • iPhone
  • Watch
  • TV
  • Music
  • Support
  • Search apple.com
  • Shopping Bag

Lists

Open Menu Close Menu
  • Terms and Conditions
  • Lists hosted on this site
  • Email the Postmaster
  • Tips for posting to public mailing lists
How can I get rid of this warning message?
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

How can I get rid of this warning message?


  • Subject: How can I get rid of this warning message?
  • From: Rick Aurbach <email@hidden>
  • Date: Mon, 21 Jan 2013 15:20:44 -0500
  • Acceptlanguage: en-US
  • Thread-topic: How can I get rid of this warning message?

I am attempting to use the RTPTimer wrapper that Gordon Apple contributed to this list. (Thanks, Gordon!)

It appears to work great, but I find that the class's executeSelector: method generates a warning message.

> - (void) executeSelector:(NSTimer*)timer {
>    if(self.target != nil) {
>        if([self.target respondsToSelector:self.sel])
>            [self.target performSelector:self.sel withObject:self];
>    }
>    else
>        [self invalidate];
> }

where sel is defined as @property(nonatomic) SEL sel;

The line containing the performSelector:withObject: method generates
"PerformSelector may cause a leak because its selector is unknown".

Ok, I agree that the selector is unknown, but we know from the previous line that the target responds to it. So I'd like to prevent this particular warning. I'm sure I ought to know how do do this, but how do I go about removing this warning message? Ideally, I'd like to do this on a file (or occurrence) basis, so that I can make sure that other similar usages are similarly safe.

Cheers,

Rick Aurbach
Aurbach & Associates, Inc.


_______________________________________________

Cocoa-dev mailing list (email@hidden)

Please do not post admin requests or moderator comments to the list.
Contact the moderators at cocoa-dev-admins(at)lists.apple.com

Help/Unsubscribe/Update your Subscription:

This email sent to email@hidden

  • Follow-Ups:
    • Re: How can I get rid of this warning message?
      • From: Greg Parker <email@hidden>
    • Re: How can I get rid of this warning message?
      • From: Charles Srstka <email@hidden>
    • RE: How can I get rid of this warning message?
      • From: Julius Oklamcak <email@hidden>
  • Prev by Date: [ANN] v 0.3 of MPWDrawingContext, a pleasant Objective-C drawing context updated with blocks
  • Next by Date: RE: How can I get rid of this warning message?
  • Previous by thread: [ANN] v 0.3 of MPWDrawingContext, a pleasant Objective-C drawing context updated with blocks
  • Next by thread: RE: How can I get rid of this warning message?
  • Index(es):
    • Date
    • Thread