• KillTheMule@programming.dev
    link
    fedilink
    arrow-up
    1
    ·
    edit-2
    1 year ago

    Note that when you change num to take &self instead, this works out (you also need to mark foo as mutable, of course).

    • hairyballs@programming.dev
      link
      fedilink
      arrow-up
      1
      ·
      1 year ago

      It’s a toy example. In that case, the solution is to assign the expression to a variable to compute its result upfront.