Remove non-directory stuff (of base), and rename package to "directory"

[haskell-directory.git] / Debug / Trace.hs

diff --git a/Debug/Trace.hs b/Debug/Trace.hs
deleted file mode 100644 (file)
index accf247..0000000
--- a/Debug/Trace.hs
+++ /dev/null
@@ -1,67 +0,0 @@
------------------------------------------------------------------------------
--- |
--- Module      :  Debug.Trace
--- Copyright   :  (c) The University of Glasgow 2001
--- License     :  BSD-style (see the file libraries/base/LICENSE)
--- 
--- Maintainer  :  libraries@haskell.org
--- Stability   :  provisional
--- Portability :  portable
---
--- The 'trace' function.
---
------------------------------------------------------------------------------
-
-module Debug.Trace (
-       -- * Tracing
-       putTraceMsg,      -- :: String -> IO ()
-       trace             -- :: String -> a -> a
-  ) where
-
-import Prelude
-import System.IO.Unsafe
-
-#ifdef __GLASGOW_HASKELL__
-import Foreign.C.String
-#else
-import System.IO (hPutStrLn,stderr)
-#endif
-
--- | 'putTraceMsg' function outputs the trace message from IO monad.
--- Usually the output stream is 'System.IO.stderr' but if the function is called
--- from Windows GUI application then the output will be directed to the Windows
--- debug console.
-putTraceMsg :: String -> IO ()
-putTraceMsg msg = do
-#ifndef __GLASGOW_HASKELL__
-    hPutStrLn stderr msg
-#else
-    withCString "%s\n" $ \cfmt ->
-     withCString msg  $ \cmsg ->
-      debugBelch cfmt cmsg
-
-foreign import ccall unsafe "RtsMessages.h debugBelch"
-   debugBelch :: CString -> CString -> IO ()
-#endif
-
-{-# NOINLINE trace #-}
-{-|
-When called, 'trace' outputs the string in its first argument, before 
-returning the second argument as its result. The 'trace' function is not 
-referentially transparent, and should only be used for debugging, or for 
-monitoring execution. Some implementations of 'trace' may decorate the string 
-that\'s output to indicate that you\'re tracing. The function is implemented on
-top of 'putTraceMsg'.
--}
-trace :: String -> a -> a
-trace string expr = unsafePerformIO $ do
-    putTraceMsg string
-    return expr
-
-{-|
-Like 'trace', but uses 'show' on the argument to convert it to a 'String'.
-
-> traceShow = trace . show
--}
-traceShow :: (Show a) => a -> b -> b
-traceShow = trace . show