Here's the source of try from active_support def try(*a, &b) if a.empty? && block_given? yield self else public_send(*a, &b) if

Here's the source of try from active_support def try(*a, &b) if a.empty? && block_given? yield self else public_send(*a, &b) if respond_to?(a.first) end end https://github.com/rails/rails/blob/d68419a88e424e588c2d8decc69874bd00588766/activesupport/lib/active_support/core_ext/object/try.rb https://github.com/rails/rails/blob/d68419a88e424e588c2d8dec... Should be easy to do the same in swift. Let me take a stab at it.