#9191: Semi-exported names --------------------------------------+------------------------------------ Reporter: dfeuer | Owner: Type: feature request | Status: new Priority: low | Milestone: Component: Compiler (CodeGen) | Version: 7.8.2 Keywords: | Operating System: Architecture: Unknown/Multiple | Unknown/Multiple Difficulty: Unknown | Type of failure: None/Unknown Blocked By: | Test Case: Related Tickets: | Blocking: --------------------------------------+------------------------------------ It's generally inadvisable to add exports to a well-known module because they may clash with existing code using the module and importing it in its entirety. As a work-around, I propose allowing a module to export a name that will only be visible in a module that lists it explicitly. Something approximately like module Foo (a, b, explicit c) simply import Foo would not bring c into scope, but import Foo (c) would bring in c (and nothing else). To get everything, we could use something like import Foo revealing (c) and to be a bit picky, import Foo hiding (a) revealing (c). -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/9191 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler