X-Git-Url: http://git.megacz.com/?a=blobdiff_plain;f=compiler%2Fmain%2FBreakArray.hs;h=ceae28db3983883394e124cf784ba10ac417ce9d;hb=1b41ef08ec1779cd3305e1eea56cb2d23fa3d4ec;hp=d258ae69618651ac7290af3b79c18c56d9975721;hpb=ad94d40948668032189ad22a0ad741ac1f645f50;p=ghc-hetmet.git

diff --git a/compiler/main/BreakArray.hs b/compiler/main/BreakArray.hs
index d258ae6..ceae28d 100644
--- a/compiler/main/BreakArray.hs
+++ b/compiler/main/BreakArray.hs
@@ -3,30 +3,30 @@
 -- Break Arrays in the IO monad
 -- Entries in the array are Word sized 
 --
+-- Conceptually, a zero-indexed IOArray of Bools, initially False.
+-- They're represented as Words with 0==False, 1==True.
+-- They're used to determine whether GHCI breakpoints are on or off.
+--
 -- (c) The University of Glasgow 2007
 --
 -----------------------------------------------------------------------------
 
-{-# OPTIONS -w #-}
--- The above warning supression flag is a temporary kludge.
--- While working on this module you are encouraged to remove it and fix
--- any warnings in the module. See
---     http://hackage.haskell.org/trac/ghc/wiki/CodingStyle#Warnings
--- for details
-
 module BreakArray
-  ( BreakArray (BA)
-        -- constructor is exported only for ByteCodeGen
+  ( BreakArray
+#ifdef GHCI
+      (BA)  -- constructor is exported only for ByteCodeGen
+#endif
   , newBreakArray
+#ifdef GHCI
   , getBreak 
   , setBreakOn 
   , setBreakOff
   , showBreakArray
+#endif
   ) where
-
+#ifdef GHCI
 import GHC.Exts
 import GHC.IOBase
-import GHC.Prim
 import GHC.Word
 import Constants
 
@@ -106,3 +106,14 @@ readBA# array i = IO $ \s ->
 
 readBreakArray :: BreakArray -> Int -> IO Word 
 readBreakArray (BA array) (I# i) = readBA# array i
+
+#else /* GHCI */
+--stub implementation to make main/, etc., code happier.
+--IOArray and IOUArray are increasingly non-portable,
+--still don't have quite the same interface, and (for GHCI)
+--presumably have a different representation.
+data BreakArray = Unspecified
+newBreakArray :: Int -> IO BreakArray
+newBreakArray _ = return Unspecified
+#endif /* GHCI */
+