On Thu, Sep 07, 2006 at 06:21:01AM +0100, Jn Fairbairn wrote: > David Roundy <[EMAIL PROTECTED]> writes: > > > On Wed, Sep 06, 2006 at 09:56:17AM -0700, Jason Dagit wrote: > > > Or maybe even more extreme you could use template haskell or the c > > > preprocessor to fill in the line number + column. > > > > Which is precisely what darcs does for fromJust (which we use a lot): > > we define a C preprocessor macro fromJust. > > Curiously, the only bug in darcs that has bitten me so far > was a use of fromJust. Perhaps that indicates a weakness in > the style, rather than the tools?
Yeah, in general fromJust is a dangerous business, and most of the uses of it in darcs can lead to trouble for partial repositories, for instance. I was just yesterday discussing with Jason the possibility of switching away from a Maybe approach for lazily reading patches. -- David Roundy _______________________________________________ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
