#11405: Incorrect failure of type-level skolem escape check -------------------------------------+------------------------------------- Reporter: goldfire | Owner: goldfire Type: bug | Status: new Priority: highest | Milestone: 8.0.1 Component: Compiler | Version: 8.0.1-rc1 Resolution: | Keywords: TypeInType 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 goldfire): Interestingly, this works on a non-`DEBUG` build, probably because we run Core Lint only after doing the quick optimization pass after desugaring. Perhaps that's a clue to how to solve this... only look for levity- polymorphic binders after the quick optimization pass? Seems a bit odd. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/11405#comment:7 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler