On Sun, Jul 06, 2008 at 02:39:52AM +0300, Yitzchak Gale wrote:
To get there with less pain, I think we should:
o For 6.10, make the new Exceptions available so that everyone can start working on switching, but leave old Exceptions as the default so that existing programs still work. Prominently mark old exceptions as deprecated in all documentation.
o In the next version, make the new Exceptions the default. Make sure that programs using new Exceptions for 6.10 will still work (e.g., leave NewException as an alias for Exception, or whatever).
We can do that, although to actually get people to change I think we'd need a good helping of DEPRECATED pragmas. So in 6.10 we'd have: module OldException where ... -- everything has DEPRECATED pragmas module NewException where ... module Exception (module OldException) where import OldException and then in 6.12: module OldException where ... -- everything has DEPRECATED pragmas module Exception where ... module {-# DEPRECATED "Use Exception" #-} NewException (module Exception) where import Exception Thanks Ian