Eric I'd love to see it happen. High payoff, low pain. See https://ghc.haskell.org/trac/ghc/ticket/9049 No existing branch that I know of. I'm copying some other people who might be interested. Let me know how I can help. Simon | -----Original Message----- | From: Eric Seidel [mailto:eric@seidel.io] | Sent: 12 December 2014 22:11 | To: Simon Peyton Jones | Subject: Implicit Locations in GHC | | Hi Simon, | | I just noticed your wiki page | | | https://ghc.haskell.org/trac/ghc/wiki/ExplicitCallStack/ImplicitLocati | ons | | Interestingly, I talked to Iavor a few weeks back about the exact same | idea, and briefly started working on a branch before being consumed by | various work things.. | | Anyway, I think I may have some extra free time coming up, and I'd be | happy to throw some of it at implementing this proposal. Is there an | existing branch that I should look at? | | Eric