Bitwise branching

bitwise_branching.m

static long (^(^animate)(long))(void(^__strong)(long *)) = ^ (long duration) {
    __block typeof(CADisplayLink *) display_link;
    __block long frames = duration;

    return ^ long (void (^__strong animator)(long *)) {
        display_link = [CADisplayLink displayLinkWithTarget:^{
            frames >>= 01;
            return
            ((frames & 01) &&
            ^ long {
                animator(&frames);
                return active_component_bit_vector;
            }())
            
            ||
            
            ((frames | 01) &&
            ^ long {
                printf("COMPLETE\n");
                [display_link invalidate];
                return active_component_bit_vector;
            }());
        } selector:@selector(invoke)];
        [display_link addToRunLoop:[NSRunLoop mainRunLoop] forMode:NSRunLoopCommonModes];
        
        return active_component_bit_vector;
    };
};

/*

*/

animate(30)(^ (long * frame) {
        printf("%ld\n", *frame);
    });