#12160: MonadFail instance for (Either String)? -------------------------------------+------------------------------------- Reporter: lexi.lambda | Owner: Type: feature request | Status: new Priority: normal | Milestone: Component: libraries | Version: 8.0.1 (other) | Resolution: | Keywords: Operating System: Unknown/Multiple | Architecture: | Unknown/Multiple Type of failure: None/Unknown | Test Case: Blocked By: | Blocking: Related Tickets: | Differential Rev(s): Wiki Page: | -------------------------------------+------------------------------------- Comment (by nomeata): Sounds like a good idea to me, but there might be issues (such as breaking compatibility with the current `Monad` instance for `Either`). I suggest you propose this formally, as described in https://wiki.haskell.org/Library_submissions, and see what the collective wisdom of the community thinks of this. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/12160#comment:1 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler