- There needs to be some support from the compilers/interpreters. Hugs already has this. Ghc has some of it, but I abuse the profiling system in order to get the names of constructors to be present on the heap. I'm not happy with this. Under normal compilation GHC doesn't keep constructor names around, as far as I know. However, the new debugger in GHC must do something to get names of things, so perhaps the -prof hack is no longer needed?
I believe the debugger that Robert Ennals is working on tries to infer constructor names from the symbol table of the binary. Personally, I'd like to see debugging info placed in a separate segment of the binary, so it won't be loaded with the code but can be used by a debugger. Cheers, Simon