#14761: Incorrect diagnostic for UNPACK/missing strictness -------------------------------------+------------------------------------- Reporter: dminuoso | Owner: (none) Type: bug | Status: new Priority: normal | Milestone: Component: Compiler | Version: 8.2.2 Resolution: | Keywords: Operating System: Unknown/Multiple | Architecture: Type of failure: Incorrect | Unknown/Multiple error/warning at compile-time | Test Case: Blocked By: | Blocking: Related Tickets: #7210 | Differential Rev(s): Wiki Page: | -------------------------------------+------------------------------------- Comment (by dminuoso): The problem only seems to trigger when there's a type constructor. {{{#!hs data A = A { a :: {-# UNPACK #-} Maybe Int} -- Wrong diagnostic data A = A { a :: {-# UNPACK #-} (,) Int Int } -- Wrong diagnostic }}} But not with the special type syntax or unary types {{{#!hs data A = A { a :: {-# UNPACK #-} (Int, Int) } -- Works data A = A { a :: {-# UNPACK #-} Int } -- Works }}} -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/14761#comment:1 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler