On Wed, Nov 01, 2006 at 03:51:57PM -0800, John Meacham wrote: > On Wed, Nov 01, 2006 at 03:15:38PM -0600, Brian Smith wrote: > > Instance hiding is an important feature in its own right. > > selective importing and exporting of instances is a really tricky > technical issue for a lot of reasons, and a bad idea for many others.
As an example of the technical difficulties, recall that with ghc -fglasgow-exts and hugs -98 defer reducing contexts using instances until forced to (see FlexibleContexts). If instances can come and go, this will be even more confusing. _______________________________________________ Haskell-prime mailing list Haskell-prime@haskell.org http://www.haskell.org/mailman/listinfo/haskell-prime
