At Sun, 28 Sep 2008 11:05:42 -0700, Alexander Dunlap wrote:
This seems like a good idea but it's kind of strange to have three different exposed versions of nub. Would it be possible to hide them, hide the StopList typeclass and use {-# RULES #-} pragmas to use the faster versions when possible?
The RULES pragma is GHC-specific. Would it make sense to export the faster versions so that people targeting alternative compilers could use them? Additionally, I think RULES only take effect if you are compiling with optimizations, but not if you just load the files into GHCi. I have written programs which run fine with nubOrd but are unacceptable with nubEq. So, I would certainly want the option to force the use of nubOrd at all times, rather than rely on the compiler to sometimes make the required optimization for me. j.