On Dec 13, 2011, at 1:47 PM, Kyle Sluder wrote:
> Don't be tempted to add singleton smarts to -[Foo init]. ARC will not
> like them. Instead, add a property to File's Owner that just returns
> the shared Foo instance.

Really?  Do you have a reference for that claim?  I looked through 
http://clang.llvm.org/docs/AutomaticReferenceCounting.html and saw nothing 
about singletons.

So much has been written about how -init is allowed to return a value other 
than what 'self' was at entry, I can't believe ARC can't handle it.  

FWIW, here's the body of my singleton-smart -init.

        if ( gSingleton!=NULL )
        {
                [self release];
                self = gSingleton;
        } 
        else if ((self=[super init])!=NULL)
        {
                …
        }
        return self;


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