Demonstrate a case of a spurious warning about an instance being immediately deallocated

IntentionalRetainCycle.m

#import <Foundation/Foundation.h>

@interface RetainCycle : NSObject
@end

@implementation RetainCycle {
    id _object;
}

- (instancetype)init {
    if (!(self = [super init])) {
        return nil;
    }

    _object = self;
    return self;
}

- (void)dealloc {
    NSLog(@"-[%@ dealloc]", self);
}

- (void)breakCycle {
    _object = nil;
}
@end


int main(int argc, char** argv) {
    __weak RetainCycle *weak = [[RetainCycle alloc] init];
    NSLog(@"weak: %@", weak);
    [weak breakCycle];
    NSLog(@"weak: %@", weak);
}