looking to do a transformation of arrow types, but...

# arrow

[Tom Davis]

looking to do a transformation of arrow types, but having trouble coming up with a succinct call chain. i have a List<() -> Validated<E, A>> which i want to transform into ValidatedNel<E, A> by:
1. specifying invalid value if the list is empty
2. calling items until the first valid value is encountered
3. aggregating invalid values until (2)
4. ignoring items after (2)
i can come up with an "ugly" way to do this easily enough, but i'm curious if there's a nice fluent pattern for it. thanks in advance!

[simon.vergauwen]

Hmm, I don't believe there is anything that satisfies 2. traverse will continue running after encountering the first valid value.

[Tom Davis]

thanks @simon.vergauwen, that was my experience as well. separateValidated() with a Sequence is my closest approximation that allows avoiding traversal past the first valid value.