RE: Impossible leak warning in OS X init method
RE: Impossible leak warning in OS X init method
- Subject: RE: Impossible leak warning in OS X init method
- From: Lee Ann Rucker <email@hidden>
- Date: Sat, 29 Aug 2015 18:02:13 +0000
- Thread-topic: Impossible leak warning in OS X init method
Have you tried reordering it into something like
if (!self) return nil;
if (!do_stuff_successfully) {
[self release];
return nil;
}
...
That's our house style and I've never seen an error like yours.
________________________________________
From: cocoa-dev-bounces+lrucker=email@hidden [cocoa-dev-bounces+lrucker=email@hidden] on behalf of Bill Cheeseman [email@hidden]
Sent: Saturday, August 29, 2015 8:11 AM
To: Cocoa-Dev Cocoa-Dev Mail
Subject: Impossible leak warning in OS X init method
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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