diff options
Diffstat (limited to 'plugins/extraction/haskell.ml')
| -rw-r--r-- | plugins/extraction/haskell.ml | 15 |
1 files changed, 11 insertions, 4 deletions
diff --git a/plugins/extraction/haskell.ml b/plugins/extraction/haskell.ml index 52459f78e..4bf576f64 100644 --- a/plugins/extraction/haskell.ml +++ b/plugins/extraction/haskell.ml @@ -38,7 +38,7 @@ let pp_bracket_comment s = str"{- " ++ hov 0 s ++ str" -}" let preamble mod_name comment used_modules usf = let pp_import mp = str ("import qualified "^ string_of_modfile mp ^"\n") in - (if not usf.magic then mt () + (if not (usf.magic || usf.tunknown) then mt () else str "{-# OPTIONS_GHC -cpp -XMagicHash #-}" ++ fnl () ++ str "{- For Hugs, use the option -F\"cpp -P -traditional\" -}") @@ -56,18 +56,25 @@ let preamble mod_name comment used_modules usf = else str "\ \n#ifdef __GLASGOW_HASKELL__\ \nimport qualified GHC.Base\ -\nimport qualified GHC.Prim\ -\ntype Any = GHC.Prim.Any\ \nunsafeCoerce :: a -> b\ \nunsafeCoerce = GHC.Base.unsafeCoerce#\ \n#else\ \n-- HUGS\ \nimport qualified IOExts\ -\ntype Any = ()\ \nunsafeCoerce :: a -> b\ \nunsafeCoerce = IOExts.unsafeCoerce\ \n#endif" ++ fnl2 ()) ++ + (if not usf.tunknown then mt () + else str "\ +\n#ifdef __GLASGOW_HASKELL__\ +\nimport qualified GHC.Prim\ +\ntype Any = GHC.Prim.Any\ +\n#else\ +\n-- HUGS\ +\ntype Any = ()\ +\n#endif" ++ fnl2 ()) + ++ (if not usf.mldummy then mt () else str "__ :: any" ++ fnl () ++ str "__ = Prelude.error \"Logical or arity value used\"" ++ fnl2 ()) |