#14249: ApplicativeDo: Pattern matching on a bind forces a Monad constraint -------------------------------+-------------------------------------- Reporter: mutantmell | Owner: (none) Type: bug | Status: new Priority: normal | Milestone: Component: Compiler | Version: 8.2.1 Resolution: | Keywords: ApplicativeDo Operating System: Linux | Architecture: x86_64 (amd64) Type of failure: Other | Test Case: Blocked By: | Blocking: Related Tickets: | Differential Rev(s): Wiki Page: | -------------------------------+-------------------------------------- Comment (by mutantmell): Adding the `~` to my pattern match changes the constraint, so it looks like it is due to #13875. I'll close the bug. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/14249#comment:2 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler