#13998: Default Signature messes up arity of type constructor -------------------------------------+------------------------------------- Reporter: andrewthad | Owner: (none) Type: bug | Status: new Priority: normal | Milestone: Component: Compiler | Version: 8.0.1 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 simonpj):
The problem is that the Class data type....
But the `classTyCon` has everything. The `classTyVars` are redundant, just there for convenience. I'm fixing it by using the visiblity of the class (tycon) parameters and using that consistently. `mkSpecSigmaTy` is deeply suspect. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/13998#comment:7 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler