• John@mastodon.social
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      8 months ago

      @Windex007

      lexer :: Parser LexState (Vector Int, Vector Token)
      lexer = do
      (positions, tokens) <- _ nextPositionedToken

      What goes where the underscore is in the above snippet?

      • Windex007@lemmy.world
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        8 months ago

        I’ve never used Haskell, so I can barely read this as-is.

        But sure: I have no idea, and I expect that’s your point.

        You as the writer, you don’t know either? What if I could understand Haskell, is there an option to communicate that information to me? Or is the argument that nobody but the compiler and god need know? That having an awareness of the types has no value?

        • John@mastodon.social
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          8 months ago

          @Windex007
          > You as the writer, you don’t know either?
          Not until the compiler tells me.

          > Or is the argument that nobody but the compiler and god need know? That having an awareness of the types has no value?
          No, I want to know, because knowing the types has value. If the compiler has inference, it can tell me, if not, it can’t.