X-Git-Url: http://git.megacz.com/?a=blobdiff_plain;f=ghc%2Fcompiler%2Fmain%2FErrUtils.lhs;h=dcf2934f7a9094882e0483033fc5c9700fbcad55;hb=438596897ebbe25a07e1c82085cfbc5bdb00f09e;hp=04ae96f182155b3d00b74fe193bc17cb27431b89;hpb=e7498a3ee1d0484d02a9e86633cc179c76ebf36e;p=ghc-hetmet.git

diff --git a/ghc/compiler/main/ErrUtils.lhs b/ghc/compiler/main/ErrUtils.lhs
index 04ae96f..dcf2934 100644
--- a/ghc/compiler/main/ErrUtils.lhs
+++ b/ghc/compiler/main/ErrUtils.lhs
@@ -1,59 +1,51 @@
 %
-% (c) The AQUA Project, Glasgow University, 1994-1995
+% (c) The AQUA Project, Glasgow University, 1994-1998
 %
 \section[ErrsUtils]{Utilities for error reporting}
 
 \begin{code}
-#include "HsVersions.h"
-
 module ErrUtils (
-	Error(..), Warning(..), Message(..),
-	addErrLoc,
+	ErrMsg, WarnMsg, Message,
 	addShortErrLocLine, addShortWarnLocLine,
 	dontAddErrLoc,
-	pprBagOfErrors,
-	ghcExit
+	pprBagOfErrors, pprBagOfWarnings,
+	ghcExit,
+	doIfSet, dumpIfSet
     ) where
 
-IMP_Ubiq(){-uitous-}
+#include "HsVersions.h"
 
-import Bag		( bagToList )
-import PprStyle		( PprStyle(..) )
-import Pretty
-import SrcLoc		( mkUnknownSrcLoc, SrcLoc{-instance-} )
+import Bag		( Bag, bagToList )
+import SrcLoc		( SrcLoc )
+import Outputable
 \end{code}
 
 \begin{code}
-type Error   = PprStyle -> Pretty
-type Warning = PprStyle -> Pretty
-type Message = PprStyle -> Pretty
+type ErrMsg   = SDoc
+type WarnMsg = SDoc
+type Message = SDoc
 
-addErrLoc :: SrcLoc -> String -> Error -> Error
-addErrLoc locn title rest_of_err_msg sty
-  = ppHang (ppBesides [ppr PprForUser locn,
-		       if null title then ppNil else ppStr (": " ++ title),
-		       ppChar ':'])
-    	 4 (rest_of_err_msg sty)
+addShortErrLocLine, addShortWarnLocLine :: SrcLoc -> ErrMsg -> ErrMsg
 
-addShortErrLocLine, addShortWarnLocLine :: SrcLoc -> Error -> Error
+addShortErrLocLine locn rest_of_err_msg
+  = hang (ppr locn <> colon)
+	 4 rest_of_err_msg
 
-addShortErrLocLine locn rest_of_err_msg sty
-  = ppHang (ppBeside (ppr PprForUser locn) (ppChar ':'))
-	 4 (rest_of_err_msg sty)
+addShortWarnLocLine locn rest_of_err_msg
+  = hang (ppr locn <> ptext SLIT(": Warning:"))
+	 4 rest_of_err_msg
 
-addShortWarnLocLine locn rest_of_err_msg sty
-  = ppHang (ppBeside (ppr PprForUser locn) (ppPStr SLIT(":warning:")))
-	 4 (rest_of_err_msg sty)
+dontAddErrLoc :: String -> ErrMsg -> ErrMsg
+dontAddErrLoc title rest_of_err_msg
+  = hang (hcat [text title, char ':'])
+    	 4 rest_of_err_msg
 
-dontAddErrLoc :: String -> Error -> Error
-dontAddErrLoc title rest_of_err_msg sty
-  = ppHang (ppBesides [ppStr title, ppChar ':'])
-    	 4 (rest_of_err_msg sty)
+pprBagOfErrors :: Bag ErrMsg -> SDoc
+pprBagOfErrors bag_of_errors
+  = vcat [space $$ p | p <- bagToList bag_of_errors]
 
-pprBagOfErrors :: PprStyle -> Bag Error -> Pretty
-pprBagOfErrors sty bag_of_errors
-  = let  pretties = map ( \ e -> e sty ) (bagToList bag_of_errors)  in
-    ppAboves (map (\ p -> ppAbove ppSP p) pretties)
+pprBagOfWarnings :: Bag ErrMsg -> SDoc
+pprBagOfWarnings bag_of_warns = pprBagOfErrors bag_of_warns
 \end{code}
 
 \begin{code}
@@ -64,3 +56,22 @@ ghcExit val
     then error "Compilation had errors\n"
     else return ()
 \end{code}
+
+\begin{code}
+doIfSet :: Bool -> IO () -> IO ()
+doIfSet flag action | flag      = action
+		    | otherwise = return ()
+\end{code}
+
+\begin{code}
+dumpIfSet :: Bool -> String -> SDoc -> IO ()
+dumpIfSet flag hdr doc
+  | not flag  = return ()
+  | otherwise = printDump dump
+  where
+    dump = vcat [text "", 
+		 line <+> text hdr <+> line,
+		 doc,
+		 text ""]
+    line = text (take 20 (repeat '='))
+\end{code}