[Haskell-cafe] Announce: file-location 0.2.4
greg at gregweber.info
Thu Aug 11 02:59:37 CEST 2011
I realized I should have made a bigger version bump: Announcing version
On Wed, Aug 10, 2011 at 5:53 PM, Greg Weber <greg at gregweber.info> wrote:
> Were you excited when Simon Marlow announced he might be able to add stack
> traces to Haskell? Would you settle for just the first line of the stack
> trace? It is a little known fact that template haskell exposes the file and
> line number information.
> file-location contains common debugging/error/exception functions and
> template haskell versions that give file location information.
> > $(err "OH NO!")
> main:Main main.hs:16:1 OH NO!
> > debug [1,2,3]
> DEBUG: [1,2,3]
> > $(dbg) [1,2,3]
> DEBUG main:Main main.hs:1:3 [1,2,3]
> ($(thrwIO) AException) `catch` \e -> putStrLn ("Caught " ++ show (e ::
> Caught AException "main:Main test/main.hs:25:6"
> Don't like the exception dependency? Use version 0.2.3 for now until the
> exceptions are split into a separate package.
> Just want the debug helpers (like the debug function) but not interested in
> the template haskell? The library is already split into modules based on
> dependencies. The near future plan is to separate this into separate
> packages, including one with the non-TH debug helpers.
> Also see the github README for more examples:
> I think haskell could use a few more debug helpers. Perhaps some of these
> could be pushed back into the standard distribution.
> Thanks, and I am looking forward to your feedback,
> Greg Weber
-------------- next part --------------
An HTML attachment was scrubbed...
More information about the Haskell-Cafe