Hi everyone,
I started hacking a bit today on a Jupyter notebook kernel for elm. You can
see it here:
https://github.com/abingham/jupyter-elm-kernel
<https://github.com/abingham/jupyter-elm-kernel>
It doesn't quite work yet, though, and I think I need help from someone who
knows javascript/requirejs/web stuff a bit better than me. The proximal
problem I'm seeing is that when jupyter tries to run the elm-make-generated
javascript, it thinks that 'Elm' is undefined during (I think) some part of
the AMD machinery. Jupyter show this as the output for the cell:
Javascript error adding output!
ReferenceError: Elm is not defined
See your browser Javascript console for more details.
As far as I can see, Elm *should* be defined, and certainly the generated
code looks like any other Elm output I've looked at. So I'm a bit stumped.
My approach to the kernel is currently very simple. The kernel is
implemented in Python, and it receives a blob of Elm source code. I dump
this to a temp file, use a subprocess to run "elm-make" to make the output,
read the output, and ship it back to jupyter. As far as I can see, all of
that is working properly. I run into problems when jupyter tries to execute
the stuff I return. This design may or may not be optimal in the long run,
but I want to get the plumbing working first.
So if someone feels up to the challenge, I'd love any help I could get.
This seems like it should be pretty straightforward, but perhaps I'm being
naive and/or missing something obvious.
Of course, I'm also happy to discuss other aspects of the kernel (e.g.
design, compilation technique, etc.), but my priority is to just get
something into an output cell.
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