Pattern match(es) are non-exhaustive

[supermario]

I was getting a runtime (!) exception with the following;

myApp: src/Elm/Record.hs:(12,1)-(67,23): Non-exhaustive patterns in function render

Pulling down the elm-export source and building;

$ stack build --pedantic

elm-export/src/Elm/Encoder.hs:13:1: warning: [-Wincomplete-patterns]
    Pattern match(es) are non-exhaustive
    In an equation for ‘render’:
        Patterns not matched:
            (TopLevel (TopLevel _))
            (TopLevel (Record _ _))
            (TopLevel (Constructor _ _))
            (TopLevel (Selector _ _))
            ...

elm-export/src/Elm/Record.hs:12:1: warning: [-Wincomplete-patterns]
    Pattern match(es) are non-exhaustive
    In an equation for ‘render’:
        Patterns not matched:
            (TopLevel (TopLevel _))
            (TopLevel (DataType _ (TopLevel _)))
            (TopLevel (DataType _ (DataType _ _)))
            (TopLevel (DataType _ (Constructor _ _)))
            ...

I tried fixing it but couldn't quite grok things.

Adding render _ = return "" to both Encoder and Record files "did the trick" in terms of the runtime exception in my dependant app, but I doubt that's the Right™ fix.

Would be happy to submit a PR with some direction 😄

[krisajenkins]

Thanks for this - there's been a big overhaul of the core datastructures that deals with this. Last night we finally finished polishing it up and got it released, so if you try 0.5.0.1 you should be good. :-)