#11145: Template Haskell quotes of data instance GADTs is totally broken -------------------------------------+------------------------------------- Reporter: goldfire | Owner: Type: bug | Status: new Priority: normal | Milestone: Component: Template | Version: 7.10.2 Haskell | Keywords: | Operating System: Unknown/Multiple Architecture: | Type of failure: None/Unknown Unknown/Multiple | Test Case: | Blocked By: Blocking: | Related Tickets: Differential Rev(s): | Wiki Page: -------------------------------------+------------------------------------- When I say {{{ data family Fuggle x y [d| data instance Fuggle Int (Maybe (a,b)) where MkFuggle :: Fuggle Int (Maybe Bool) |] }}} I get (with `-ddump-splices`) {{{ [d| data instance Fuggle Int (Maybe (a_ajz6, b_ajz7)) where MkFuggle_ajz5 :: Fuggle Int (Maybe Bool) |] ======> data instance Fuggle Int (Maybe (a_ajAf, b_ajAg)) = (b_ajAg ~ Maybe Bool, a_ajAf ~ Int) => MkFuggle_ajAe }}} But that's not at all what I said! Admittedly, what I said was garbage, but it should fail outright. Is this addressed by Phab:D1465? -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/11145 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler