#8782: Using GADT's to maintain invariant in GHC libraries -------------------------------------+------------------------------------- Reporter: | Owner: Iceland_jack | Status: infoneeded Type: task | Milestone: 7.10.1 Priority: lowest | Version: 7.9 Component: Compiler | Keywords: Resolution: | Architecture: Unknown/Multiple Operating System: | Difficulty: Unknown Unknown/Multiple | Blocked By: Type of failure: | Related Tickets: None/Unknown | Test Case: | Blocking: | Differential Revisions: | -------------------------------------+------------------------------------- Comment (by Iceland_jack): I removed some exported functions like `mapOL` (that only appears in a comment) and `foldrOL` and `foldlOL` (replacing occurrences with `Data.Foldable.foldr` and `Data.Foldable.foldl`. Other functions like (`concatOL`, `appOL`, `fromOL`, ...) could as well be dropped in favour of the `Monoid` and `IsList` methods in the future, but they are used substantially more than the ones I replaced so I decided against it. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/8782#comment:4 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler