Fergus Henderson writes:

Although Hat does support "import Prelude hiding (head)", if you substitute other symbols than "head", in at least some cases it will fail:

import Prelude hiding (sin)

Hat/Bug.hs:8: Module `Hat.Prelude' does not export `asin'

It seems my patch for imports/exports of class methods was a little over-enthusiastic. Only the worker and wrapper need to be mentioned in the transformed entity list, not the atom, hence the error message. Here is a patch to the patch. Regards, Malcolm Index: src/hattrans/TraceTrans.hs =================================================================== RCS file: /home/cvs/root/hat/src/hattrans/TraceTrans.hs,v retrieving revision 1.66 diff -u -r1.66 TraceTrans.hs --- src/hattrans/TraceTrans.hs 30 Jun 2004 15:35:42 -0000 1.66 +++ src/hattrans/TraceTrans.hs 30 Jun 2004 19:18:21 -0000 @@ -207,8 +207,7 @@ : case arity id of Just a | a > 0 -> [EntityVar pos (nameTraceInfoGlobalVar id) ,EntityVar pos (nameWorker id)] - Just (-1) -> [EntityVar pos (nameTraceInfoGlobalVar id) - ,EntityVar pos (nameShare id)] + Just (-1) -> [EntityVar pos (nameShare id)] _ -> [] tEntity traced (EntityConClsAll pos id) | hasValueInfo id = [] tEntity traced (EntityConClsAll pos id) =