X-Git-Url: http://git.megacz.com/?a=blobdiff_plain;f=Control%2FMonad%2FST.hs;h=46ae8a22bfc8c80557cdbcb9300c7a69b367ec10;hb=53aa4bc647eea9934b431b970f6ce531e992df43;hp=0e3485725e40d34c4a1f141a7ee0686d535d3c27;hpb=3e23aaae1a1f07fd28f1092d0f79e13d66b72f09;p=ghc-base.git

diff --git a/Control/Monad/ST.hs b/Control/Monad/ST.hs
index 0e34857..46ae8a2 100644
--- a/Control/Monad/ST.hs
+++ b/Control/Monad/ST.hs
@@ -10,24 +10,25 @@
 --
 -- This library provides support for /strict/ state threads, as
 -- described in the PLDI \'94 paper by John Launchbury and Simon Peyton
--- Jones /Lazy State Threads/.
+-- Jones /Lazy Functional State Threads/.
 --
 -----------------------------------------------------------------------------
 
 module Control.Monad.ST
   (
-	-- * The 'ST' Monad
-	ST,		-- abstract, instance of Functor, Monad, Typeable.
-	runST,		-- :: (forall s. ST s a) -> a
-	fixST,		-- :: (a -> ST s a) -> ST s a
-
-	-- * Converting 'ST' to 'IO'
-	RealWorld,		-- abstract
-	stToIO,			-- :: ST RealWorld a -> IO a
-
-	-- * Unsafe operations
-	unsafeInterleaveST,  	-- :: ST s a -> ST s a
-	unsafeIOToST		-- :: IO a -> ST s a
+        -- * The 'ST' Monad
+        ST,             -- abstract, instance of Functor, Monad, Typeable.
+        runST,          -- :: (forall s. ST s a) -> a
+        fixST,          -- :: (a -> ST s a) -> ST s a
+
+        -- * Converting 'ST' to 'IO'
+        RealWorld,              -- abstract
+        stToIO,                 -- :: ST RealWorld a -> IO a
+
+        -- * Unsafe operations
+        unsafeInterleaveST,     -- :: ST s a -> ST s a
+        unsafeIOToST,           -- :: IO a -> ST s a
+        unsafeSTToIO            -- :: ST s a -> IO a
       ) where
 
 import Prelude
@@ -53,11 +54,11 @@ unsafeInterleaveST =
 #endif
 
 #ifdef __GLASGOW_HASKELL__
-import GHC.ST		( ST, runST, fixST, unsafeInterleaveST )
-import GHC.Base		( RealWorld )
-import GHC.IOBase 	( stToIO, unsafeIOToST )
+import GHC.ST           ( ST, runST, fixST, unsafeInterleaveST )
+import GHC.Base         ( RealWorld )
+import GHC.IOBase       ( stToIO, unsafeIOToST, unsafeSTToIO )
 #endif
 
 instance MonadFix (ST s) where
-	mfix = fixST
+        mfix = fixST