If we were to create a Rust version of this page for Haskell, what cool programming techniques would you add to it?

  • Ephera@lemmy.ml
    link
    fedilink
    arrow-up
    1
    ·
    edit-2
    20 days ago

    Well, you would determine the TypeId of SomeOtherType, then search for that as the key in your HashMap and get back a None, because no entry exists and then you’d hand that back to the user.
    I guess, my little usage example should’ve included handling of an Option value…

    So, it’s only a runtime error, if you decide to .unwrap() or similar.