On 17 Mar 2008, at 23:41, Niklas Broberg wrote:
Could this be used to add support for refactoring of source files containing language extensions?
Because if I'm correct, the current most popular refactoring solution (I forgot the name) for Haskell does not support extensions.
I supppose you're talking about HaRe, that Thomas Schilling linked to. I have no idea how that system is built so I can't answer your question. But in principle I don't see why not. :-)
I believe that the limitation is that they use Programatica's parser to get an AST to run their refactorings on. I think they've looked several times at using ghc's apis to do this, but hit various problems. I think that the main problem is that no other parser preserves things like code layout and commenting, which is of course pretty critical to refactoring programs in a sane kind of way. Thanks Tom