self inside block called by super

Question

In this case, weakself is needed to avoid retain cycle

[self showMethodA:^{
    [weakself showMethodB];
}];

Will this case cause a retain cycle?

[super showMethodA:^{
    [self showMethodB];
}];

Answer 1

Does it create a cycle? Only if showMethodA stores the block into self.

"super" vs. "self" only affects the dispatching, calling the superclass showMethodA instead of self's own showMethodA. It doesn't affect cycles. And whether a cycle is created or not depends on the code in showMethodA.

Answer 2

Yes it will create retain cycle.

You only create a retain cycle if you actually store the block (because self points to the block, and block points to self).

Refer below link for more info :

Referring to weak self inside a nested block