LayoutLogging.m

static void LayoutLoggingForClassSelector(Class cls, SEL selector) {
    static NSMutableDictionary *counters = nil;
    if (!counters) {
        counters = [NSMutableDictionary dictionary];
    }

    SEL selector = NSSelectorFromString(selectorName);
    [cls aspect_hookSelector:selector withOptions:AspectPositionBefore usingBlock:^(id<AspectInfo> info) {
        TLLOG(NL(@"lob %s %p"), class_getName([[info instance] class]), (void *)[info instance]);
    } error:nil];
    [cls aspect_hookSelector:selector withOptions:AspectPositionAfter usingBlock:^(id<AspectInfo> info) {
        NSValue *key = [NSValue valueWithPointer:(void *)[info instance]];
        NSNumber *counter = counters[key];
        if (!counter) {
            counter = @(0);
        }
        counter = @(counter.integerValue + 1);
        counters[key] = counter;

        TLLOG(NL(@"loa %s %p %@"), class_getName([[info instance] class]), (void *)[info instance], counter);
    } error:nil];
}