ghc-effect-handlers
A library for writing extensible algebraic effects and handlers. Similar to extensible-effects but with deep handlers
This is an extensible effects library for Haskell taking inspiration from the Eff language<http://www.eff-lang.org/>. See these papers for the ideas and theory behind the library: - O. Kammar et al: Handlers in Action!<http://homepages.inf.ed.ac.uk/slindley/papers/handlers.pdf>- A. Bauer, M. Pretnar: Programming with Algebraic Effects and Handlers<http://arxiv.org/abs/1203.1539>- O Kiselyov, A Sabry, C Swords: Extensible Effects<http://dl.acm.org/citation.cfm?id=2503791>Implementation wise it's most close to 'extensible-effects'<http://hackage.haskell.org/package/extensible-effects>(also see the Extensible Effects paper) but it implements deep handlers instead of shallow. ' import Control.Effects.Cont.Eff import Control.Effects.Cont.Reader import Control.Effects.Cont.Exception program = do  v<- ask  if v<15  then throw $ show v  else return (v+1) run n = runPure . handle exceptionHandler . handle (readerHandler n) res :: Integer ->Either String Integer res n = run n program '.
MIT