New syntax for GADT-style record declarations, and associated refactoring

[ghc-hetmet.git] / compiler / utils / Binary.hs

diff --git a/compiler/utils/Binary.hs b/compiler/utils/Binary.hs
index 4f48a42..cbfec74 100644 (file)
--- a/compiler/utils/Binary.hs
+++ b/compiler/utils/Binary.hs
@@ -67,6 +67,7 @@ import Panic
 import UniqFM
 import FastMutInt
 import Fingerprint
+import BasicTypes
 
 import Foreign
 import Data.Array
@@ -82,10 +83,15 @@ import System.IO.Unsafe         ( unsafeInterleaveIO )
 import System.IO.Error          ( mkIOError, eofErrorType )
 import GHC.Real                 ( Ratio(..) )
 import GHC.Exts
-import GHC.IOBase               ( IO(..) )
 import GHC.Word                 ( Word8(..) )
 import System.IO                ( openBinaryFile )
 
+#if __GLASGOW_HASKELL__ >= 611
+import GHC.IO ( IO(..) )
+#else
+import GHC.IOBase ( IO(..) )
+#endif
+
 type BinArray = ForeignPtr Word8
 
 ---------------------------------------------------------------
@@ -726,3 +732,13 @@ instance Binary Fingerprint where
   put_ h (Fingerprint w1 w2) = do put_ h w1; put_ h w2
   get  h = do w1 <- get h; w2 <- get h; return (Fingerprint w1 w2)
 
+instance Binary FunctionOrData where
+    put_ bh IsFunction = putByte bh 0
+    put_ bh IsData     = putByte bh 1
+    get bh = do
+        h <- getByte bh
+        case h of
+          0 -> return IsFunction
+          1 -> return IsData
+          _ -> panic "Binary FunctionOrData"
+