#12104: Type families, `TypeError`, and `-fdefer-type-errors` cause "opt_univ fell into a hole" -------------------------------------+------------------------------------- Reporter: antalsz | Owner: (none) Type: bug | Status: new Priority: high | Milestone: Component: Compiler (Type | Version: 8.0.1 checker) | Keywords: TypeFamilies, Resolution: | CustomTypeErrors Operating System: Unknown/Multiple | Architecture: Type of failure: Compile-time | Unknown/Multiple crash | Test Case: Blocked By: | Blocking: Related Tickets: | Differential Rev(s): Wiki Page: | -------------------------------------+------------------------------------- Comment (by RyanGlScott): I've confirmed that 2f9f1f86849ebc18af409c9b3fd809c9cd464021 (the fix for #13487) fixes this program as well. Curiously, #13487 was marked as merge, but hasn't made it into 8.2 for some reason. Can we do so? I'll prepare a regression test. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/12104#comment:8 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler