Hi, Roman Cheplyaka wrote:
My preferred solution would be to have ghc/ghci automatically run hsc2hs [...] when necessary.
How about having a `ghci` command for cabal?
I don't think cabal can provide that. Let's say you're inside a 'cabal ghci' session. If you modify the hsc file and reload it in ghci, you'd expect to load the updated version — yet cabal hasn't even been called since 'cabal ghci', and have had no chance to re-generate the hs file.
Maybe ghci could be changed to call some kind of hook everytime a file is called, and cabal could then provide an implementation for this hook that regenerates the files if necessary? Maybe this is even possible today using: :def r somethingCleverHere A quick test shows some minor problems, like :def r (const (return ":r")) :r looping. But maybe this could be figured out. Tillmann