On Jun 23, 2009, at 20:32 , Niklas Broberg wrote:
In my quest to implement all known syntactic extensions to Haskell in my haskell-src-exts package, I've become painfully aware of the sometimes ad-hoc nature that these extensions have been added to GHC.
Someone really needs to sit down and work out a complete, consistent, and rational set of extensions, including not only your ExplicitForall but also e.g. if you are actually compiling Haskell98, hierarchical modules should be illegal. The reality is that some extensions are always on and others are haphazardly split from -fglasgow-exts. (Then again, I'm also of the opinion that -package should control not only linking but also imports, because it's ridiculously inconsistent for stuff to compile but not link if you forget -package or --make. It also opens the possibility of modules managing their own namespaces as discussed in other recent threads, and that a module install doesn't have to scribble in ghc's library directory; the latter would likely make some packagers very happy.) -- brandon s. allbery [solaris,freebsd,perl,pugs,haskell] allbery@kf8nh.com system administrator [openafs,heimdal,too many hats] allbery@ece.cmu.edu electrical and computer engineering, carnegie mellon university KF8NH