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 <[email protected]> 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 [email protected]. > 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 [email protected]. For more options, visit https://groups.google.com/d/optout.
