Question

I have the following method:

-(NSMutableArray *)someArray{ // line 1
    if(self.someArray == nil){ // line 2
        self.someArray = [[NSMutableArray alloc]init];
    }  
    return self.someArray;
}

I had this in non-ARC, and it works fine: If self.someArray in line 2 is nil, then go ahead and instantiate it.

However, after I switched to ARC, when it gets to line 2, it goes back to line 1, and the loop continues.

Any help will be greatly appreciated.
Thanks.

Answer 1

The proper form is

@synthesize someArray = _someArray;
- (NSMutableArray *)someArray {
    if (!_someArray) {
        _someArray = [NSMutableArray array];
    }
    return _someArray;
}