Add {-# OPTIONS_GHC -w #-} and some blurb to all compiler modules

[ghc-hetmet.git] / compiler / ghci / ObjLink.lhs

diff --git a/compiler/ghci/ObjLink.lhs b/compiler/ghci/ObjLink.lhs
index 135afbb..36a9d8b 100644 (file)
--- a/compiler/ghci/ObjLink.lhs
+++ b/compiler/ghci/ObjLink.lhs
@@ -11,6 +11,13 @@ Primarily, this module consists of an interface to the C-land dynamic linker.
 \begin{code}
 {-# OPTIONS -#include "Linker.h" #-}
 
+{-# OPTIONS_GHC -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/WorkingConventions#Warnings
+-- for details
+
 module ObjLink ( 
    initObjLinker,       -- :: IO ()
    loadDLL,             -- :: String -> IO (Maybe String)
@@ -18,11 +25,9 @@ module ObjLink (
    unloadObj,           -- :: String -> IO ()
    insertSymbol,         -- :: String -> String -> Ptr a -> IO ()
    lookupSymbol,        -- :: String -> IO (Maybe (Ptr a))
-   resolveObjs,         -- :: IO SuccessFlag
-   lookupDataCon         -- :: Ptr a  -> IO (Maybe String)
+   resolveObjs          -- :: IO SuccessFlag
   )  where
 
-import ByteCodeItbls    ( StgInfoTable )
 import Panic           ( panic )
 import BasicTypes      ( SuccessFlag, successIf )
 import Config          ( cLeadingUnderscore )
@@ -33,8 +38,6 @@ import Foreign.C
 import Foreign         ( nullPtr )
 import GHC.Exts         ( Ptr(..), unsafeCoerce# )
 
-import Constants        ( wORD_SIZE )
-import Foreign          ( plusPtr )
 
 
 -- ---------------------------------------------------------------------------
@@ -57,14 +60,6 @@ lookupSymbol str_in = do
        then return Nothing
        else return (Just addr)
 
--- | Expects a Ptr to an info table, not to a closure
-lookupDataCon :: Ptr StgInfoTable -> IO (Maybe String)
-lookupDataCon ptr = do
-    name <- c_lookupDataCon  (ptr `plusPtr` (wORD_SIZE*2))
-    if name == nullPtr
-       then return Nothing
-       else peekCString name >>= return . Just
-
 prefixUnderscore :: String -> String
 prefixUnderscore
  | cLeadingUnderscore == "YES" = ('_':)
@@ -98,7 +93,7 @@ resolveObjs = do
    return (successIf (r /= 0))
 
 -- ---------------------------------------------------------------------------
--- Foreign declaractions to RTS entry points which does the real work;
+-- Foreign declarations to RTS entry points which does the real work;
 -- ---------------------------------------------------------------------------
 
 foreign import ccall unsafe "addDLL"      c_addDLL :: CString -> IO CString
@@ -108,6 +103,4 @@ foreign import ccall unsafe "lookupSymbol" c_lookupSymbol :: CString -> IO (Ptr
 foreign import ccall unsafe "loadObj"      c_loadObj :: CString -> IO Int
 foreign import ccall unsafe "unloadObj"    c_unloadObj :: CString -> IO Int
 foreign import ccall unsafe "resolveObjs"  c_resolveObjs :: IO Int
-foreign import ccall unsafe "lookupDataCon"  c_lookupDataCon :: Ptr a -> IO CString
-
 \end{code}