#12729: Unlifted newtypes via GADTSyntax -------------------------------------+------------------------------------- Reporter: monoidal | Owner: Type: bug | Status: new Priority: normal | Milestone: Component: Compiler (Type | Version: 8.0.1 checker) | Resolution: | Keywords: Operating System: Unknown/Multiple | Architecture: Type of failure: GHC accepts | Unknown/Multiple invalid program | Test Case: Blocked By: | Blocking: Related Tickets: | Differential Rev(s): Wiki Page: | -------------------------------------+------------------------------------- Comment (by Simon Peyton Jones <simonpj@…>): In [changeset:"1f09c16c38a2112322d8eab95cd1269daaf5a818/ghc" 1f09c16/ghc]: {{{ #!CommitTicketReference repository="ghc" revision="1f09c16c38a2112322d8eab95cd1269daaf5a818" Test for newtype with unboxed argument Newtypes cannot (currently) have an unboxed argument type. But Trac #12729 showed that this was only being checked for newtypes in H98 syntax; in GADT snytax they were let through. This patch moves the test to checkValidDataCon, where it properly belongs. }}} -- Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/12729#comment:2> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler