Oh, I didn't reply all. Whoops. On 28 August 2011 13:40, Christopher Done <chrisd...@googlemail.com> wrote: > On 27 August 2011 22:59, aditya siram <aditya.si...@gmail.com> wrote: >> I would like for the GHCI interpreter to save its environment before >> reloading a file and allowed the user to revert back to that state if the >> compilation was unsuccessful. >> >> Many times I've changed files, loaded them, hit a compilation error and >> needed, for example, the inferred type signature of some function. Even >> though that function hasn't been changed I have to either fix my code, undo >> a bunch of changes or comment out the last change I made and reload in order >> to do a ":type" on the function. This really breaks the flow of development. > > This has been bugging me for a long time and it's been on my TODO list > for haskell-emacs: https://github.com/chrisdone/haskell-emacs > > I just implemented it. http://i.imgur.com/A71T5.png > > I just run two ghci processes, one for compiling, one for merely > loading the code in when the former succeeds. > > It's not a very pleasant hack but in conjunction with :set > -fobject-code it is fast and does not consume that much more memory. > Considering tibbe's report is 4 years old, I think this solution is > better than nothing. > > Set hs-config-preliminary-load-file to t in hs-config.el and it will > do a preliminary load in a separate GHCi process.
_______________________________________________ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe