#15471: Polymorphism, typed splices and type inference don't mix -------------------------------------+------------------------------------- Reporter: mpickering | Owner: (none) Type: bug | Status: new Priority: normal | Milestone: 8.8.1 Component: Template Haskell | Version: 8.4.3 Resolution: | Keywords: Operating System: Unknown/Multiple | Architecture: Type of failure: GHC rejects | Unknown/Multiple valid program | Test Case: Blocked By: | Blocking: Related Tickets: | Differential Rev(s): Wiki Page: | -------------------------------------+------------------------------------- Comment (by simonpj): I'm only saying "it's behaving as specified". (So not a bug in that sense.) I think you want to propose an extension to the existing behaviour. What is that extension? Specifically, what type do you expect `test_foo` to have? I don't know what this has to do with static forms, but from your `foo` I get {{{ • No instance for (Typeable a0) arising from a static form • In the expression: static (id :: forall a. a -> a) In an equation for ‘foo’: foo = static (id :: forall a. a -> a) }}} -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/15471#comment:6 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler