I really like the compiler warnings. But the todo function seems redundant... Debug.crash has no other legitimate uses.
On Thu, Sep 1, 2016 at 2:16 PM, Zinggi <schrott57...@gmail.com> wrote: > Hi everyone, > > I just had this idea which I think would be awesome to have. > Basically I'd like to have this: > > Debug.todo : a > Debug.todo = > Debug.crash "TODO" > > Which would be very simple to implement myself, but my idea would need > some additional compiler support. > > This could be used to *fill a gap* in your code during prototyping, > before actually implementing anything. > Then the compiler should *generate a warning* wherever you've used it, > telling you the *type* that would be needed there. > Let me give you an example: > > someButton : Html Msg > someButton = > button [ onClick Debug.todo ] [ text "foo" ] > > Then the compiler would give you a warning along the lines of this: > > * Missing value** on line xx > // *or: missing implementation > > > * button [ onClick Debug.todo ] [ text "foo" ]* > * ^^^^^^^* > * This needs to be replaced with a value** of type: > // *or: needs to be replaced with a function of type > > * Msg* > > > Couple that with a good text editor like atom which displays warnings > inline and you immediately see what you need to provide to fill the gaps. > We could even go a step further and have: > > _ = Debug.todo > > This might be a bit confusing, as _ already serves as a catch all pattern, > but it isn't used as a value yet, so it would be free. > > > > *TL;DR* > > Fill gaps in your code with *Debug.todo* and the compiler tells you what > needs to go there. > > > *What do you think?* > > I'm already using *Debug.crash* quite often for that purpose, but a > designated compiler supported solution would be ideal. > > -- > You received this message because you are subscribed to the Google Groups > "Elm Discuss" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to elm-discuss+unsubscr...@googlegroups.com. > For more options, visit https://groups.google.com/d/optout. > -- You received this message because you are subscribed to the Google Groups "Elm Discuss" group. To unsubscribe from this group and stop receiving emails from it, send an email to elm-discuss+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
