Tries to resolve the inner iterator.

Assigns null to inner if it fails.

Property definitions

functional $ FlatMapIter :: try_compute_inner
        # Tries to resolve the inner iterator.
        # Assigns null to `inner` if it fails.
        protected fun try_compute_inner
        do
                inner = null
                if not my_iter.is_ok then return
                var res = f.call(my_iter.item)
                if res.is_ok then inner = res
        end
lib/functional/iter_extras.nit:341,9--349,11