#14969: panic on incorrect syntax -------------------------------------+------------------------------------- Reporter: johnleo | Owner: (none) Type: bug | Status: new Priority: normal | Milestone: Component: Compiler | Version: 8.5 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: | -------------------------------------+------------------------------------- Changes (by simonpj): * cc: pallm@… (added) Comment: I think this is a variant of #14884. The machinery that Mathias Gissurarson (cc'd) has implemented for reporting typed holes, does not set type-variable level numbers properly. In that context it doesn't matter much; but it's very unsatisfactory. I recently had a long conversation with Mathias about various improvements to the type-hole-reporting mechanism. So we can expect improvements here. Here is the [wiki:Holes main wiki page about typed holes] which summarises the state of play -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/14969#comment:4 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler