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Impossible leak warning in OS X init method
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Impossible leak warning in OS X init method


  • Subject: Impossible leak warning in OS X init method
  • From: Bill Cheeseman <email@hidden>
  • Date: Sat, 29 Aug 2015 11:11:42 -0400

The following initialization code has generated a leak warning in Xcode 4, 5, 6 and 7 beta in a framework of mine for several years. It has never caused an issue in the wild. I would really like to get rid of the warning. Can anybody tell me what I'm doing wrong?

@implementation MyObject // subclass of NSObject

- (id)initWithSomeThing:(id)someThing {
     self = [super init];
     if (self) {
          if (do_stuff_successfully) {
               ...
          } else {
               [self release];
               return nil; // <-- Error (quoted below)
          }
     }
     return self;
}

- (MyObject *)objectWithThing:(id)thisThing {
     if (thisThing) {
          MyObject *object = [[MyObject alloc] initWithSomething:thisThing];
          return [object autorelease];
     }
     return nil;
}

@end

Error: "Object leaked: object allocated and stored into 'self' is not referenced later in this execution path and has a retain count of +1"

--

Bill Cheeseman - email@hidden

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