#8753: Import constructor but not the data type -------------------------------------+------------------------------------ Reporter: andreas.abel | Owner: Type: feature request | Status: new Priority: normal | Milestone: Component: Compiler | Version: 7.6.3 Resolution: | Keywords: Operating System: Unknown/Multiple | Architecture: Unknown/Multiple Type of failure: None/Unknown | Difficulty: Unknown Test Case: | Blocked By: Blocking: | Related Tickets: -------------------------------------+------------------------------------ Changes (by simonpj): * cc: cactus (added) Comment: You are right that there is no good way to do this, and that the lack is unfortunate. It is, however, possible in GHC 7.8. You can say {{{ import A( pattern D ) }}} provided you use `LANGUAGE PatternSynonyms`. Here `D` is a data constructor, but that's just a degenerate pattern synonym. Similarly in hiding and export lists. Does that help? I see that this point does not (yet) show up in the user manual, and it should. Gergo, might you fix that? Simon -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/8753#comment:4 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler