On Mon, Feb 25, 2013 at 10:40:29AM +0100, Twan van Laarhoven wrote: > I think there is no need to have a separate REWRITE_WITH_LOCATION > rule. What if the compiler instead rewrites 'currentLocation' to the > current location? Then you'd just define the rule: > > {-# REWRITE "errorLoc" error = errorLoc currentLocation #-}
REWRITE rules are only enabled with -O. Source locations are also useful during development (when you care more about compilation time than efficient code and hence use -O0). So I'm not sure whether it's a good idea to lump those two things together. Cheers, Simon _______________________________________________ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe