循环引用问题cyclic Referenced

[13546490786]

emptyStateDelegate、emptyStateDataSource
objc_setAssociatedObject(self, &AssociatedKeys.emptyStateDataSource, newValue, .OBJC_ASSOCIATION_RETAIN_NONATOMIC)

->

            objc_setAssociatedObject(self, &AssociatedKeys.emptyStateDataSource, newValue, .OBJC_ASSOCIATION_ASSIGN)