allow scripts to have any name (not just Main.hs)

[fommil]

I would love it if I could have a persistent file called scratch.hs that I keep in my ~/.emacs.d that I can execute as a script. But deep inside the script logic it generates a fake name Main.hs regardless of the file name. This unfortunately breaks the haskell-mode's haskell-compile jump-to-error support because the filenames don't match.

As a workaround, I call it Main.hs, which is no biggy, but it'd be a pretty sweet workflow optimisation to be able to have a scratch.hs file! We could even add support in haskell-mode to generate / popularise this file. Possibly add special handling so it always gets compiled the correct way and perhaps even a special new-repl launcher too.

It would also be really great for performance reasons to be able to short stop of generating the binaries. Often I just want to check for compilation.

// @typedrat I'm guessing you know the most about this than anybody 😄

[typedrat]

The obvious way to do it would be to support main-is, with the file being named based on that.