#14341: Show instance for TypeReps is a bit broken -------------------------------------+------------------------------------- Reporter: dfeuer | Owner: (none) Type: bug | Status: new Priority: normal | Milestone: Component: Core Libraries | Version: 8.2.1 Resolution: | Keywords: Typeable Operating System: Unknown/Multiple | Architecture: | Unknown/Multiple Type of failure: None/Unknown | Test Case: Blocked By: | Blocking: Related Tickets: | Differential Rev(s): Phab:D4084 Wiki Page: | -------------------------------------+------------------------------------- Comment (by PhilippD): There's also a problem with displaying partially applied tuple type constructors: {{{ λ> typeRep @((,,)) () λ> typeRep @((,,,,,,,) Int Word) (Int,Word) }}} The problem seems to be that `showTypeable` doesn't check the arity of the constructor and just applies `showArgs` to the type arguments. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/14341#comment:3 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler