Am 14.01.2011 16:10, schrieb Ian Lynagh:
On Fri, Jan 14, 2011 at 03:15:56PM +0100, Christian Maeder wrote:
Am 14.01.2011 14:30, schrieb Sittampalam, Ganesh:
Is it actually possible to get this change (removal of the deprecation) in to 7.0.2/the next HP?
Doesn't this proposal make it possible?
We try not to change the APIs of libraries that come with GHC within a GHC major release, so that if something compiles with one minor release then it'll also compile with another.
It is no API change. It fixes the bug that a program using Data.Map.foldWithKey called with the flag -Werror is rejected.
We do occasionally make exceptions (and most compiler bugfixes etc are effectively exceptions), if there is strong motivation to do so. Given how contentious this proposal has been, personally I don't think there is a strong case for making an exception, though.
If you (the community) were willing to allow API changes I would suggest to add the fold{l,r}WithKey functions to Data.IntMap and the strict variants fold{l,r}WithKey' to Data.Map and Data.IntMap (to support later deprecation in 7.2) C.
Thanks Ian